redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/drivers/gpu/drm/i915/i915_debugfs.c
Arun Siluvery 33136b06d5 drm/i915/gen9: Add framework to whitelist specific GPU registers 
Some of the HW registers are privileged and cannot be written to from
non-privileged batch buffers coming from userspace unless they are added to
the HW whitelist. This whitelist is maintained by HW and it is different from
SW whitelist. Userspace need write access to them to implement preemption
related WA.

The reason for using this approach is, the register bits that control
preemption granularity at the HW level are not context save/restored; so even
if we set these bits always in kernel they are going to change once the
context is switched out.  We can consider making them non-privileged by
default but these registers also contain other chicken bits which should not
be allowed to be modified.

In the later revisions controlling bits are save/restored at context level but
in the existing revisions these are exported via other debug registers and
should be on the whitelist. This patch adds changes to provide HW with a list
of registers to be whitelisted. HW checks this list during execution and
provides access accordingly.

HW imposes a limit on the number of registers on whitelist and it is
per-engine.  At this point we are only enabling whitelist for RCS and we don't
foresee any requirement for other engines.

The registers to be whitelisted are added using generic workaround list
mechanism, even these are only enablers for userspace workarounds. But by
sharing this mechanism we get some test assets without additional cost (Mika).

v2: rebase

v3: parameterize RING_FORCE_TO_NONPRIV() as _MMIO() should be limited to
i915_reg.h (Ville), drop inline for wa_ring_whitelist_reg (Mika).

v4: improvements suggested by Chris Wilson.
Clarify that this is HW whitelist and different from the one maintained in
driver. This list is engine specific but it gets initialized along with other
WA which is RCS specific thing, so make it clear that we are not doing any
cross engine setup during initialization.
Make HW whitelist count of each engine available in debugfs.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-2-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:04 +01:00

5571 lines
148 KiB
C
Raw Blame History

/*
* Copyright © 2008 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Keith Packard <keithp@keithp.com>
*
*/
#include <linux/seq_file.h>
#include <linux/circ_buf.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/list_sort.h>
#include <asm/msr-index.h>
#include <drm/drmP.h>
#include "intel_drv.h"
#include "intel_ringbuffer.h"
#include <drm/i915_drm.h>
#include "i915_drv.h"
enum {
ACTIVE_LIST,
INACTIVE_LIST,
PINNED_LIST,
};
/* As the drm_debugfs_init() routines are called before dev->dev_private is
* allocated we need to hook into the minor for release. */
static int
drm_add_fake_info_node(struct drm_minor *minor,
struct dentry *ent,
const void *key)
{
struct drm_info_node *node;
node = kmalloc(sizeof(*node), GFP_KERNEL);
if (node == NULL) {
debugfs_remove(ent);
return -ENOMEM;
}
node->minor = minor;
node->dent = ent;
node->info_ent = (void *) key;
mutex_lock(&minor->debugfs_lock);
list_add(&node->list, &minor->debugfs_list);
mutex_unlock(&minor->debugfs_lock);
return 0;
}
static int i915_capabilities(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
const struct intel_device_info *info = INTEL_INFO(dev);
seq_printf(m, "gen: %d\n", info->gen);
seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
#define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
#define SEP_SEMICOLON ;
DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_SEMICOLON);
#undef PRINT_FLAG
#undef SEP_SEMICOLON
return 0;
}
static const char *get_pin_flag(struct drm_i915_gem_object *obj)
{
if (obj->pin_display)
return "p";
else
return " ";
}
static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
{
switch (obj->tiling_mode) {
default:
case I915_TILING_NONE: return " ";
case I915_TILING_X: return "X";
case I915_TILING_Y: return "Y";
}
}
static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
{
return i915_gem_obj_to_ggtt(obj) ? "g" : " ";
}
static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
{
u64 size = 0;
struct i915_vma *vma;
list_for_each_entry(vma, &obj->vma_list, vma_link) {
if (i915_is_ggtt(vma->vm) &&
drm_mm_node_allocated(&vma->node))
size += vma->node.size;
}
return size;
}
static void
describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct intel_engine_cs *ring;
struct i915_vma *vma;
int pin_count = 0;
int i;
seq_printf(m, "%pK: %s%s%s%s %8zdKiB %02x %02x [ ",
&obj->base,
obj->active ? "*" : " ",
get_pin_flag(obj),
get_tiling_flag(obj),
get_global_flag(obj),
obj->base.size / 1024,
obj->base.read_domains,
obj->base.write_domain);
for_each_ring(ring, dev_priv, i)
seq_printf(m, "%x ",
i915_gem_request_get_seqno(obj->last_read_req[i]));
seq_printf(m, "] %x %x%s%s%s",
i915_gem_request_get_seqno(obj->last_write_req),
i915_gem_request_get_seqno(obj->last_fenced_req),
i915_cache_level_str(to_i915(obj->base.dev), obj->cache_level),
obj->dirty ? " dirty" : "",
obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
if (obj->base.name)
seq_printf(m, " (name: %d)", obj->base.name);
list_for_each_entry(vma, &obj->vma_list, vma_link) {
if (vma->pin_count > 0)
pin_count++;
}
seq_printf(m, " (pinned x %d)", pin_count);
if (obj->pin_display)
seq_printf(m, " (display)");
if (obj->fence_reg != I915_FENCE_REG_NONE)
seq_printf(m, " (fence: %d)", obj->fence_reg);
list_for_each_entry(vma, &obj->vma_list, vma_link) {
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
i915_is_ggtt(vma->vm) ? "g" : "pp",
vma->node.start, vma->node.size);
if (i915_is_ggtt(vma->vm))
seq_printf(m, ", type: %u)", vma->ggtt_view.type);
else
seq_puts(m, ")");
}
if (obj->stolen)
seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
if (obj->pin_display || obj->fault_mappable) {
char s[3], *t = s;
if (obj->pin_display)
*t++ = 'p';
if (obj->fault_mappable)
*t++ = 'f';
*t = '\0';
seq_printf(m, " (%s mappable)", s);
}
if (obj->last_write_req != NULL)
seq_printf(m, " (%s)",
i915_gem_request_get_ring(obj->last_write_req)->name);
if (obj->frontbuffer_bits)
seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits);
}
static void describe_ctx(struct seq_file *m, struct intel_context *ctx)
{
seq_putc(m, ctx->legacy_hw_ctx.initialized ? 'I' : 'i');
seq_putc(m, ctx->remap_slice ? 'R' : 'r');
seq_putc(m, ' ');
}
static int i915_gem_object_list_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
uintptr_t list = (uintptr_t) node->info_ent->data;
struct list_head *head;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_address_space *vm = &dev_priv->gtt.base;
struct i915_vma *vma;
u64 total_obj_size, total_gtt_size;
int count, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
/* FIXME: the user of this interface might want more than just GGTT */
switch (list) {
case ACTIVE_LIST:
seq_puts(m, "Active:\n");
head = &vm->active_list;
break;
case INACTIVE_LIST:
seq_puts(m, "Inactive:\n");
head = &vm->inactive_list;
break;
default:
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(vma, head, mm_list) {
seq_printf(m, " ");
describe_obj(m, vma->obj);
seq_printf(m, "\n");
total_obj_size += vma->obj->base.size;
total_gtt_size += vma->node.size;
count++;
}
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
count, total_obj_size, total_gtt_size);
return 0;
}
static int obj_rank_by_stolen(void *priv,
struct list_head *A, struct list_head *B)
{
struct drm_i915_gem_object *a =
container_of(A, struct drm_i915_gem_object, obj_exec_link);
struct drm_i915_gem_object *b =
container_of(B, struct drm_i915_gem_object, obj_exec_link);
if (a->stolen->start < b->stolen->start)
return -1;
if (a->stolen->start > b->stolen->start)
return 1;
return 0;
}
static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
u64 total_obj_size, total_gtt_size;
LIST_HEAD(stolen);
int count, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
if (obj->stolen == NULL)
continue;
list_add(&obj->obj_exec_link, &stolen);
total_obj_size += obj->base.size;
total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
count++;
}
list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
if (obj->stolen == NULL)
continue;
list_add(&obj->obj_exec_link, &stolen);
total_obj_size += obj->base.size;
count++;
}
list_sort(NULL, &stolen, obj_rank_by_stolen);
seq_puts(m, "Stolen:\n");
while (!list_empty(&stolen)) {
obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
seq_puts(m, " ");
describe_obj(m, obj);
seq_putc(m, '\n');
list_del_init(&obj->obj_exec_link);
}
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
count, total_obj_size, total_gtt_size);
return 0;
}
#define count_objects(list, member) do { \
list_for_each_entry(obj, list, member) { \
size += i915_gem_obj_total_ggtt_size(obj); \
++count; \
if (obj->map_and_fenceable) { \
mappable_size += i915_gem_obj_ggtt_size(obj); \
++mappable_count; \
} \
} \
} while (0)
struct file_stats {
struct drm_i915_file_private *file_priv;
unsigned long count;
u64 total, unbound;
u64 global, shared;
u64 active, inactive;
};
static int per_file_stats(int id, void *ptr, void *data)
{
struct drm_i915_gem_object *obj = ptr;
struct file_stats *stats = data;
struct i915_vma *vma;
stats->count++;
stats->total += obj->base.size;
if (obj->base.name || obj->base.dma_buf)
stats->shared += obj->base.size;
if (USES_FULL_PPGTT(obj->base.dev)) {
list_for_each_entry(vma, &obj->vma_list, vma_link) {
struct i915_hw_ppgtt *ppgtt;
if (!drm_mm_node_allocated(&vma->node))
continue;
if (i915_is_ggtt(vma->vm)) {
stats->global += obj->base.size;
continue;
}
ppgtt = container_of(vma->vm, struct i915_hw_ppgtt, base);
if (ppgtt->file_priv != stats->file_priv)
continue;
if (obj->active) /* XXX per-vma statistic */
stats->active += obj->base.size;
else
stats->inactive += obj->base.size;
return 0;
}
} else {
if (i915_gem_obj_ggtt_bound(obj)) {
stats->global += obj->base.size;
if (obj->active)
stats->active += obj->base.size;
else
stats->inactive += obj->base.size;
return 0;
}
}
if (!list_empty(&obj->global_list))
stats->unbound += obj->base.size;
return 0;
}
#define print_file_stats(m, name, stats) do { \
if (stats.count) \
seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
name, \
stats.count, \
stats.total, \
stats.active, \
stats.inactive, \
stats.global, \
stats.shared, \
stats.unbound); \
} while (0)
static void print_batch_pool_stats(struct seq_file *m,
struct drm_i915_private *dev_priv)
{
struct drm_i915_gem_object *obj;
struct file_stats stats;
struct intel_engine_cs *ring;
int i, j;
memset(&stats, 0, sizeof(stats));
for_each_ring(ring, dev_priv, i) {
for (j = 0; j < ARRAY_SIZE(ring->batch_pool.cache_list); j++) {
list_for_each_entry(obj,
&ring->batch_pool.cache_list[j],
batch_pool_link)
per_file_stats(0, obj, &stats);
}
}
print_file_stats(m, "[k]batch pool", stats);
}
#define count_vmas(list, member) do { \
list_for_each_entry(vma, list, member) { \
size += i915_gem_obj_total_ggtt_size(vma->obj); \
++count; \
if (vma->obj->map_and_fenceable) { \
mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
++mappable_count; \
} \
} \
} while (0)
static int i915_gem_object_info(struct seq_file *m, void* data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 count, mappable_count, purgeable_count;
u64 size, mappable_size, purgeable_size;
struct drm_i915_gem_object *obj;
struct i915_address_space *vm = &dev_priv->gtt.base;
struct drm_file *file;
struct i915_vma *vma;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "%u objects, %zu bytes\n",
dev_priv->mm.object_count,
dev_priv->mm.object_memory);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.bound_list, global_list);
seq_printf(m, "%u [%u] objects, %llu [%llu] bytes in gtt\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_vmas(&vm->active_list, mm_list);
seq_printf(m, " %u [%u] active objects, %llu [%llu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_vmas(&vm->inactive_list, mm_list);
seq_printf(m, " %u [%u] inactive objects, %llu [%llu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = purgeable_size = purgeable_count = 0;
list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
size += obj->base.size, ++count;
if (obj->madv == I915_MADV_DONTNEED)
purgeable_size += obj->base.size, ++purgeable_count;
}
seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
size = count = mappable_size = mappable_count = 0;
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
if (obj->fault_mappable) {
size += i915_gem_obj_ggtt_size(obj);
++count;
}
if (obj->pin_display) {
mappable_size += i915_gem_obj_ggtt_size(obj);
++mappable_count;
}
if (obj->madv == I915_MADV_DONTNEED) {
purgeable_size += obj->base.size;
++purgeable_count;
}
}
seq_printf(m, "%u purgeable objects, %llu bytes\n",
purgeable_count, purgeable_size);
seq_printf(m, "%u pinned mappable objects, %llu bytes\n",
mappable_count, mappable_size);
seq_printf(m, "%u fault mappable objects, %llu bytes\n",
count, size);
seq_printf(m, "%llu [%llu] gtt total\n",
dev_priv->gtt.base.total,
(u64)dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
seq_putc(m, '\n');
print_batch_pool_stats(m, dev_priv);
list_for_each_entry_reverse(file, &dev->filelist, lhead) {
struct file_stats stats;
struct task_struct *task;
memset(&stats, 0, sizeof(stats));
stats.file_priv = file->driver_priv;
spin_lock(&file->table_lock);
idr_for_each(&file->object_idr, per_file_stats, &stats);
spin_unlock(&file->table_lock);
/*
* Although we have a valid reference on file->pid, that does
* not guarantee that the task_struct who called get_pid() is
* still alive (e.g. get_pid(current) => fork() => exit()).
* Therefore, we need to protect this ->comm access using RCU.
*/
rcu_read_lock();
task = pid_task(file->pid, PIDTYPE_PID);
print_file_stats(m, task ? task->comm : "<unknown>", stats);
rcu_read_unlock();
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_gtt_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
uintptr_t list = (uintptr_t) node->info_ent->data;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
u64 total_obj_size, total_gtt_size;
int count, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
if (list == PINNED_LIST && !i915_gem_obj_is_pinned(obj))
continue;
seq_puts(m, " ");
describe_obj(m, obj);
seq_putc(m, '\n');
total_obj_size += obj->base.size;
total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
count++;
}
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
count, total_obj_size, total_gtt_size);
return 0;
}
static int i915_gem_pageflip_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *crtc;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
for_each_intel_crtc(dev, crtc) {
const char pipe = pipe_name(crtc->pipe);
const char plane = plane_name(crtc->plane);
struct intel_unpin_work *work;
spin_lock_irq(&dev->event_lock);
work = crtc->unpin_work;
if (work == NULL) {
seq_printf(m, "No flip due on pipe %c (plane %c)\n",
pipe, plane);
} else {
u32 addr;
if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
pipe, plane);
} else {
seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
pipe, plane);
}
if (work->flip_queued_req) {
struct intel_engine_cs *ring =
i915_gem_request_get_ring(work->flip_queued_req);
seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
ring->name,
i915_gem_request_get_seqno(work->flip_queued_req),
dev_priv->next_seqno,
ring->get_seqno(ring, true),
i915_gem_request_completed(work->flip_queued_req, true));
} else
seq_printf(m, "Flip not associated with any ring\n");
seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
work->flip_queued_vblank,
work->flip_ready_vblank,
drm_crtc_vblank_count(&crtc->base));
if (work->enable_stall_check)
seq_puts(m, "Stall check enabled, ");
else
seq_puts(m, "Stall check waiting for page flip ioctl, ");
seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
if (INTEL_INFO(dev)->gen >= 4)
addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
else
addr = I915_READ(DSPADDR(crtc->plane));
seq_printf(m, "Current scanout address 0x%08x\n", addr);
if (work->pending_flip_obj) {
seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
seq_printf(m, "MMIO update completed? %d\n", addr == work->gtt_offset);
}
}
spin_unlock_irq(&dev->event_lock);
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
struct intel_engine_cs *ring;
int total = 0;
int ret, i, j;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
for_each_ring(ring, dev_priv, i) {
for (j = 0; j < ARRAY_SIZE(ring->batch_pool.cache_list); j++) {
int count;
count = 0;
list_for_each_entry(obj,
&ring->batch_pool.cache_list[j],
batch_pool_link)
count++;
seq_printf(m, "%s cache[%d]: %d objects\n",
ring->name, j, count);
list_for_each_entry(obj,
&ring->batch_pool.cache_list[j],
batch_pool_link) {
seq_puts(m, " ");
describe_obj(m, obj);
seq_putc(m, '\n');
}
total += count;
}
}
seq_printf(m, "total: %d\n", total);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_request_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
struct drm_i915_gem_request *req;
int ret, any, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
any = 0;
for_each_ring(ring, dev_priv, i) {
int count;
count = 0;
list_for_each_entry(req, &ring->request_list, list)
count++;
if (count == 0)
continue;
seq_printf(m, "%s requests: %d\n", ring->name, count);
list_for_each_entry(req, &ring->request_list, list) {
struct task_struct *task;
rcu_read_lock();
task = NULL;
if (req->pid)
task = pid_task(req->pid, PIDTYPE_PID);
seq_printf(m, " %x @ %d: %s [%d]\n",
req->seqno,
(int) (jiffies - req->emitted_jiffies),
task ? task->comm : "<unknown>",
task ? task->pid : -1);
rcu_read_unlock();
}
any++;
}
mutex_unlock(&dev->struct_mutex);
if (any == 0)
seq_puts(m, "No requests\n");
return 0;
}
static void i915_ring_seqno_info(struct seq_file *m,
struct intel_engine_cs *ring)
{
if (ring->get_seqno) {
seq_printf(m, "Current sequence (%s): %x\n",
ring->name, ring->get_seqno(ring, false));
}
}
static int i915_gem_seqno_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
int ret, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
for_each_ring(ring, dev_priv, i)
i915_ring_seqno_info(m, ring);
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_interrupt_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
int ret, i, pipe;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
if (IS_CHERRYVIEW(dev)) {
seq_printf(m, "Master Interrupt Control:\t%08x\n",
I915_READ(GEN8_MASTER_IRQ));
seq_printf(m, "Display IER:\t%08x\n",
I915_READ(VLV_IER));
seq_printf(m, "Display IIR:\t%08x\n",
I915_READ(VLV_IIR));
seq_printf(m, "Display IIR_RW:\t%08x\n",
I915_READ(VLV_IIR_RW));
seq_printf(m, "Display IMR:\t%08x\n",
I915_READ(VLV_IMR));
for_each_pipe(dev_priv, pipe)
seq_printf(m, "Pipe %c stat:\t%08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
seq_printf(m, "Port hotplug:\t%08x\n",
I915_READ(PORT_HOTPLUG_EN));
seq_printf(m, "DPFLIPSTAT:\t%08x\n",
I915_READ(VLV_DPFLIPSTAT));
seq_printf(m, "DPINVGTT:\t%08x\n",
I915_READ(DPINVGTT));
for (i = 0; i < 4; i++) {
seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IMR(i)));
seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IIR(i)));
seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
i, I915_READ(GEN8_GT_IER(i)));
}
seq_printf(m, "PCU interrupt mask:\t%08x\n",
I915_READ(GEN8_PCU_IMR));
seq_printf(m, "PCU interrupt identity:\t%08x\n",
I915_READ(GEN8_PCU_IIR));
seq_printf(m, "PCU interrupt enable:\t%08x\n",
I915_READ(GEN8_PCU_IER));
} else if (INTEL_INFO(dev)->gen >= 8) {
seq_printf(m, "Master Interrupt Control:\t%08x\n",
I915_READ(GEN8_MASTER_IRQ));
for (i = 0; i < 4; i++) {
seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IMR(i)));
seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IIR(i)));
seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
i, I915_READ(GEN8_GT_IER(i)));
}
for_each_pipe(dev_priv, pipe) {
if (!intel_display_power_is_enabled(dev_priv,
POWER_DOMAIN_PIPE(pipe))) {
seq_printf(m, "Pipe %c power disabled\n",
pipe_name(pipe));
continue;
}
seq_printf(m, "Pipe %c IMR:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IMR(pipe)));
seq_printf(m, "Pipe %c IIR:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IIR(pipe)));
seq_printf(m, "Pipe %c IER:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IER(pipe)));
}
seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
I915_READ(GEN8_DE_PORT_IMR));
seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
I915_READ(GEN8_DE_PORT_IIR));
seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
I915_READ(GEN8_DE_PORT_IER));
seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
I915_READ(GEN8_DE_MISC_IMR));
seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
I915_READ(GEN8_DE_MISC_IIR));
seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
I915_READ(GEN8_DE_MISC_IER));
seq_printf(m, "PCU interrupt mask:\t%08x\n",
I915_READ(GEN8_PCU_IMR));
seq_printf(m, "PCU interrupt identity:\t%08x\n",
I915_READ(GEN8_PCU_IIR));
seq_printf(m, "PCU interrupt enable:\t%08x\n",
I915_READ(GEN8_PCU_IER));
} else if (IS_VALLEYVIEW(dev)) {
seq_printf(m, "Display IER:\t%08x\n",
I915_READ(VLV_IER));
seq_printf(m, "Display IIR:\t%08x\n",
I915_READ(VLV_IIR));
seq_printf(m, "Display IIR_RW:\t%08x\n",
I915_READ(VLV_IIR_RW));
seq_printf(m, "Display IMR:\t%08x\n",
I915_READ(VLV_IMR));
for_each_pipe(dev_priv, pipe)
seq_printf(m, "Pipe %c stat:\t%08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
seq_printf(m, "Master IER:\t%08x\n",
I915_READ(VLV_MASTER_IER));
seq_printf(m, "Render IER:\t%08x\n",
I915_READ(GTIER));
seq_printf(m, "Render IIR:\t%08x\n",
I915_READ(GTIIR));
seq_printf(m, "Render IMR:\t%08x\n",
I915_READ(GTIMR));
seq_printf(m, "PM IER:\t\t%08x\n",
I915_READ(GEN6_PMIER));
seq_printf(m, "PM IIR:\t\t%08x\n",
I915_READ(GEN6_PMIIR));
seq_printf(m, "PM IMR:\t\t%08x\n",
I915_READ(GEN6_PMIMR));
seq_printf(m, "Port hotplug:\t%08x\n",
I915_READ(PORT_HOTPLUG_EN));
seq_printf(m, "DPFLIPSTAT:\t%08x\n",
I915_READ(VLV_DPFLIPSTAT));
seq_printf(m, "DPINVGTT:\t%08x\n",
I915_READ(DPINVGTT));
} else if (!HAS_PCH_SPLIT(dev)) {
seq_printf(m, "Interrupt enable: %08x\n",
I915_READ(IER));
seq_printf(m, "Interrupt identity: %08x\n",
I915_READ(IIR));
seq_printf(m, "Interrupt mask: %08x\n",
I915_READ(IMR));
for_each_pipe(dev_priv, pipe)
seq_printf(m, "Pipe %c stat: %08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
} else {
seq_printf(m, "North Display Interrupt enable: %08x\n",
I915_READ(DEIER));
seq_printf(m, "North Display Interrupt identity: %08x\n",
I915_READ(DEIIR));
seq_printf(m, "North Display Interrupt mask: %08x\n",
I915_READ(DEIMR));
seq_printf(m, "South Display Interrupt enable: %08x\n",
I915_READ(SDEIER));
seq_printf(m, "South Display Interrupt identity: %08x\n",
I915_READ(SDEIIR));
seq_printf(m, "South Display Interrupt mask: %08x\n",
I915_READ(SDEIMR));
seq_printf(m, "Graphics Interrupt enable: %08x\n",
I915_READ(GTIER));
seq_printf(m, "Graphics Interrupt identity: %08x\n",
I915_READ(GTIIR));
seq_printf(m, "Graphics Interrupt mask: %08x\n",
I915_READ(GTIMR));
}
for_each_ring(ring, dev_priv, i) {
if (INTEL_INFO(dev)->gen >= 6) {
seq_printf(m,
"Graphics Interrupt mask (%s): %08x\n",
ring->name, I915_READ_IMR(ring));
}
i915_ring_seqno_info(m, ring);
}
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int i, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
for (i = 0; i < dev_priv->num_fence_regs; i++) {
struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
seq_printf(m, "Fence %d, pin count = %d, object = ",
i, dev_priv->fence_regs[i].pin_count);
if (obj == NULL)
seq_puts(m, "unused");
else
describe_obj(m, obj);
seq_putc(m, '\n');
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_hws_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
const u32 *hws;
int i;
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
hws = ring->status_page.page_addr;
if (hws == NULL)
return 0;
for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
i * 4,
hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
}
return 0;
}
static ssize_t
i915_error_state_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct i915_error_state_file_priv *error_priv = filp->private_data;
struct drm_device *dev = error_priv->dev;
int ret;
DRM_DEBUG_DRIVER("Resetting error state\n");
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
i915_destroy_error_state(dev);
mutex_unlock(&dev->struct_mutex);
return cnt;
}
static int i915_error_state_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
struct i915_error_state_file_priv *error_priv;
error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
if (!error_priv)
return -ENOMEM;
error_priv->dev = dev;
i915_error_state_get(dev, error_priv);
file->private_data = error_priv;
return 0;
}
static int i915_error_state_release(struct inode *inode, struct file *file)
{
struct i915_error_state_file_priv *error_priv = file->private_data;
i915_error_state_put(error_priv);
kfree(error_priv);
return 0;
}
static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
size_t count, loff_t *pos)
{
struct i915_error_state_file_priv *error_priv = file->private_data;
struct drm_i915_error_state_buf error_str;
loff_t tmp_pos = 0;
ssize_t ret_count = 0;
int ret;
ret = i915_error_state_buf_init(&error_str, to_i915(error_priv->dev), count, *pos);
if (ret)
return ret;
ret = i915_error_state_to_str(&error_str, error_priv);
if (ret)
goto out;
ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
error_str.buf,
error_str.bytes);
if (ret_count < 0)
ret = ret_count;
else
*pos = error_str.start + ret_count;
out:
i915_error_state_buf_release(&error_str);
return ret ?: ret_count;
}
static const struct file_operations i915_error_state_fops = {
.owner = THIS_MODULE,
.open = i915_error_state_open,
.read = i915_error_state_read,
.write = i915_error_state_write,
.llseek = default_llseek,
.release = i915_error_state_release,
};
static int
i915_next_seqno_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
*val = dev_priv->next_seqno;
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int
i915_next_seqno_set(void *data, u64 val)
{
struct drm_device *dev = data;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
ret = i915_gem_set_seqno(dev, val);
mutex_unlock(&dev->struct_mutex);
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
i915_next_seqno_get, i915_next_seqno_set,
"0x%llx\n");
static int i915_frequency_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret = 0;
intel_runtime_pm_get(dev_priv);
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
if (IS_GEN5(dev)) {
u16 rgvswctl = I915_READ16(MEMSWCTL);
u16 rgvstat = I915_READ16(MEMSTAT_ILK);
seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
MEMSTAT_VID_SHIFT);
seq_printf(m, "Current P-state: %d\n",
(rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
} else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
u32 freq_sts;
mutex_lock(&dev_priv->rps.hw_lock);
freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
seq_printf(m, "actual GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
seq_printf(m, "current GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
seq_printf(m, "max GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
seq_printf(m, "min GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
seq_printf(m, "idle GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
mutex_unlock(&dev_priv->rps.hw_lock);
} else if (INTEL_INFO(dev)->gen >= 6) {
u32 rp_state_limits;
u32 gt_perf_status;
u32 rp_state_cap;
u32 rpmodectl, rpinclimit, rpdeclimit;
u32 rpstat, cagf, reqf;
u32 rpupei, rpcurup, rpprevup;
u32 rpdownei, rpcurdown, rpprevdown;
u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
int max_freq;
rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
if (IS_BROXTON(dev)) {
rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
} else {
rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
}
/* RPSTAT1 is in the GT power well */
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
goto out;
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
reqf = I915_READ(GEN6_RPNSWREQ);
if (IS_GEN9(dev))
reqf >>= 23;
else {
reqf &= ~GEN6_TURBO_DISABLE;
if (IS_HASWELL(dev) || IS_BROADWELL(dev))
reqf >>= 24;
else
reqf >>= 25;
}
reqf = intel_gpu_freq(dev_priv, reqf);
rpmodectl = I915_READ(GEN6_RP_CONTROL);
rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
rpstat = I915_READ(GEN6_RPSTAT1);
rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
rpcurup = I915_READ(GEN6_RP_CUR_UP);
rpprevup = I915_READ(GEN6_RP_PREV_UP);
rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
if (IS_GEN9(dev))
cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
else if (IS_HASWELL(dev) || IS_BROADWELL(dev))
cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
else
cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
cagf = intel_gpu_freq(dev_priv, cagf);
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev->struct_mutex);
if (IS_GEN6(dev) || IS_GEN7(dev)) {
pm_ier = I915_READ(GEN6_PMIER);
pm_imr = I915_READ(GEN6_PMIMR);
pm_isr = I915_READ(GEN6_PMISR);
pm_iir = I915_READ(GEN6_PMIIR);
pm_mask = I915_READ(GEN6_PMINTRMSK);
} else {
pm_ier = I915_READ(GEN8_GT_IER(2));
pm_imr = I915_READ(GEN8_GT_IMR(2));
pm_isr = I915_READ(GEN8_GT_ISR(2));
pm_iir = I915_READ(GEN8_GT_IIR(2));
pm_mask = I915_READ(GEN6_PMINTRMSK);
}
seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "Render p-state ratio: %d\n",
(gt_perf_status & (IS_GEN9(dev) ? 0x1ff00 : 0xff00)) >> 8);
seq_printf(m, "Render p-state VID: %d\n",
gt_perf_status & 0xff);
seq_printf(m, "Render p-state limit: %d\n",
rp_state_limits & 0xff);
seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
seq_printf(m, "CAGF: %dMHz\n", cagf);
seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
GEN6_CURICONT_MASK);
seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "Up threshold: %d%%\n",
dev_priv->rps.up_threshold);
seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
GEN6_CURIAVG_MASK);
seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "Down threshold: %d%%\n",
dev_priv->rps.down_threshold);
max_freq = (IS_BROXTON(dev) ? rp_state_cap >> 0 :
rp_state_cap >> 16) & 0xff;
max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
GEN9_FREQ_SCALER : 1);
seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
max_freq = (rp_state_cap & 0xff00) >> 8;
max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
GEN9_FREQ_SCALER : 1);
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
max_freq = (IS_BROXTON(dev) ? rp_state_cap >> 16 :
rp_state_cap >> 0) & 0xff;
max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
GEN9_FREQ_SCALER : 1);
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
intel_gpu_freq(dev_priv, max_freq));
seq_printf(m, "Max overclocked frequency: %dMHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
seq_printf(m, "Current freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
seq_printf(m, "Actual freq: %d MHz\n", cagf);
seq_printf(m, "Idle freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
seq_printf(m, "Min freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
seq_printf(m, "Max freq: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
} else {
seq_puts(m, "no P-state info available\n");
}
seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk_freq);
seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
out:
intel_runtime_pm_put(dev_priv);
return ret;
}
static int i915_hangcheck_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
u64 acthd[I915_NUM_RINGS];
u32 seqno[I915_NUM_RINGS];
u32 instdone[I915_NUM_INSTDONE_REG];
int i, j;
if (!i915.enable_hangcheck) {
seq_printf(m, "Hangcheck disabled\n");
return 0;
}
intel_runtime_pm_get(dev_priv);
for_each_ring(ring, dev_priv, i) {
seqno[i] = ring->get_seqno(ring, false);
acthd[i] = intel_ring_get_active_head(ring);
}
i915_get_extra_instdone(dev, instdone);
intel_runtime_pm_put(dev_priv);
if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) {
seq_printf(m, "Hangcheck active, fires in %dms\n",
jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
jiffies));
} else
seq_printf(m, "Hangcheck inactive\n");
for_each_ring(ring, dev_priv, i) {
seq_printf(m, "%s:\n", ring->name);
seq_printf(m, "\tseqno = %x [current %x]\n",
ring->hangcheck.seqno, seqno[i]);
seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
(long long)ring->hangcheck.acthd,
(long long)acthd[i]);
seq_printf(m, "\tmax ACTHD = 0x%08llx\n",
(long long)ring->hangcheck.max_acthd);
seq_printf(m, "\tscore = %d\n", ring->hangcheck.score);
seq_printf(m, "\taction = %d\n", ring->hangcheck.action);
if (ring->id == RCS) {
seq_puts(m, "\tinstdone read =");
for (j = 0; j < I915_NUM_INSTDONE_REG; j++)
seq_printf(m, " 0x%08x", instdone[j]);
seq_puts(m, "\n\tinstdone accu =");
for (j = 0; j < I915_NUM_INSTDONE_REG; j++)
seq_printf(m, " 0x%08x",
ring->hangcheck.instdone[j]);
seq_puts(m, "\n");
}
}
return 0;
}
static int ironlake_drpc_info(struct seq_file *m)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 rgvmodectl, rstdbyctl;
u16 crstandvid;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
rgvmodectl = I915_READ(MEMMODECTL);
rstdbyctl = I915_READ(RSTDBYCTL);
crstandvid = I915_READ16(CRSTANDVID);
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
seq_printf(m, "Boost freq: %d\n",
(rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
MEMMODE_BOOST_FREQ_SHIFT);
seq_printf(m, "HW control enabled: %s\n",
yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
seq_printf(m, "SW control enabled: %s\n",
yesno(rgvmodectl & MEMMODE_SWMODE_EN));
seq_printf(m, "Gated voltage change: %s\n",
yesno(rgvmodectl & MEMMODE_RCLK_GATE));
seq_printf(m, "Starting frequency: P%d\n",
(rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
seq_printf(m, "Max P-state: P%d\n",
(rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
seq_printf(m, "Render standby enabled: %s\n",
yesno(!(rstdbyctl & RCX_SW_EXIT)));
seq_puts(m, "Current RS state: ");
switch (rstdbyctl & RSX_STATUS_MASK) {
case RSX_STATUS_ON:
seq_puts(m, "on\n");
break;
case RSX_STATUS_RC1:
seq_puts(m, "RC1\n");
break;
case RSX_STATUS_RC1E:
seq_puts(m, "RC1E\n");
break;
case RSX_STATUS_RS1:
seq_puts(m, "RS1\n");
break;
case RSX_STATUS_RS2:
seq_puts(m, "RS2 (RC6)\n");
break;
case RSX_STATUS_RS3:
seq_puts(m, "RC3 (RC6+)\n");
break;
default:
seq_puts(m, "unknown\n");
break;
}
return 0;
}
static int i915_forcewake_domains(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_uncore_forcewake_domain *fw_domain;
int i;
spin_lock_irq(&dev_priv->uncore.lock);
for_each_fw_domain(fw_domain, dev_priv, i) {
seq_printf(m, "%s.wake_count = %u\n",
intel_uncore_forcewake_domain_to_str(i),
fw_domain->wake_count);
}
spin_unlock_irq(&dev_priv->uncore.lock);
return 0;
}
static int vlv_drpc_info(struct seq_file *m)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 rpmodectl1, rcctl1, pw_status;
intel_runtime_pm_get(dev_priv);
pw_status = I915_READ(VLV_GTLC_PW_STATUS);
rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
intel_runtime_pm_put(dev_priv);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "Turbo enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "RC6 Enabled: %s\n",
yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
GEN6_RC_CTL_EI_MODE(1))));
seq_printf(m, "Render Power Well: %s\n",
(pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
seq_printf(m, "Media Power Well: %s\n",
(pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
seq_printf(m, "Render RC6 residency since boot: %u\n",
I915_READ(VLV_GT_RENDER_RC6));
seq_printf(m, "Media RC6 residency since boot: %u\n",
I915_READ(VLV_GT_MEDIA_RC6));
return i915_forcewake_domains(m, NULL);
}
static int gen6_drpc_info(struct seq_file *m)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
unsigned forcewake_count;
int count = 0, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
spin_lock_irq(&dev_priv->uncore.lock);
forcewake_count = dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count;
spin_unlock_irq(&dev_priv->uncore.lock);
if (forcewake_count) {
seq_puts(m, "RC information inaccurate because somebody "
"holds a forcewake reference \n");
} else {
/* NB: we cannot use forcewake, else we read the wrong values */
while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
udelay(10);
seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
}
gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
mutex_unlock(&dev->struct_mutex);
mutex_lock(&dev_priv->rps.hw_lock);
sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
mutex_unlock(&dev_priv->rps.hw_lock);
intel_runtime_pm_put(dev_priv);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "RC1e Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
seq_printf(m, "RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
seq_printf(m, "Deep RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
seq_printf(m, "Deepest RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
seq_puts(m, "Current RC state: ");
switch (gt_core_status & GEN6_RCn_MASK) {
case GEN6_RC0:
if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
seq_puts(m, "Core Power Down\n");
else
seq_puts(m, "on\n");
break;
case GEN6_RC3:
seq_puts(m, "RC3\n");
break;
case GEN6_RC6:
seq_puts(m, "RC6\n");
break;
case GEN6_RC7:
seq_puts(m, "RC7\n");
break;
default:
seq_puts(m, "Unknown\n");
break;
}
seq_printf(m, "Core Power Down: %s\n",
yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
/* Not exactly sure what this is */
seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
I915_READ(GEN6_GT_GFX_RC6_LOCKED));
seq_printf(m, "RC6 residency since boot: %u\n",
I915_READ(GEN6_GT_GFX_RC6));
seq_printf(m, "RC6+ residency since boot: %u\n",
I915_READ(GEN6_GT_GFX_RC6p));
seq_printf(m, "RC6++ residency since boot: %u\n",
I915_READ(GEN6_GT_GFX_RC6pp));
seq_printf(m, "RC6 voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
seq_printf(m, "RC6+ voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
seq_printf(m, "RC6++ voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
return 0;
}
static int i915_drpc_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
return vlv_drpc_info(m);
else if (INTEL_INFO(dev)->gen >= 6)
return gen6_drpc_info(m);
else
return ironlake_drpc_info(m);
}
static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
seq_printf(m, "FB tracking busy bits: 0x%08x\n",
dev_priv->fb_tracking.busy_bits);
seq_printf(m, "FB tracking flip bits: 0x%08x\n",
dev_priv->fb_tracking.flip_bits);
return 0;
}
static int i915_fbc_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
if (!HAS_FBC(dev)) {
seq_puts(m, "FBC unsupported on this chipset\n");
return 0;
}
intel_runtime_pm_get(dev_priv);
mutex_lock(&dev_priv->fbc.lock);
if (intel_fbc_is_active(dev_priv))
seq_puts(m, "FBC enabled\n");
else
seq_printf(m, "FBC disabled: %s\n",
dev_priv->fbc.no_fbc_reason);
if (INTEL_INFO(dev_priv)->gen >= 7)
seq_printf(m, "Compressing: %s\n",
yesno(I915_READ(FBC_STATUS2) &
FBC_COMPRESSION_MASK));
mutex_unlock(&dev_priv->fbc.lock);
intel_runtime_pm_put(dev_priv);
return 0;
}
static int i915_fbc_fc_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
return -ENODEV;
*val = dev_priv->fbc.false_color;
return 0;
}
static int i915_fbc_fc_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
return -ENODEV;
mutex_lock(&dev_priv->fbc.lock);
reg = I915_READ(ILK_DPFC_CONTROL);
dev_priv->fbc.false_color = val;
I915_WRITE(ILK_DPFC_CONTROL, val ?
(reg | FBC_CTL_FALSE_COLOR) :
(reg & ~FBC_CTL_FALSE_COLOR));
mutex_unlock(&dev_priv->fbc.lock);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_fc_fops,
i915_fbc_fc_get, i915_fbc_fc_set,
"%llu\n");
static int i915_ips_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
if (!HAS_IPS(dev)) {
seq_puts(m, "not supported\n");
return 0;
}
intel_runtime_pm_get(dev_priv);
seq_printf(m, "Enabled by kernel parameter: %s\n",
yesno(i915.enable_ips));
if (INTEL_INFO(dev)->gen >= 8) {
seq_puts(m, "Currently: unknown\n");
} else {
if (I915_READ(IPS_CTL) & IPS_ENABLE)
seq_puts(m, "Currently: enabled\n");
else
seq_puts(m, "Currently: disabled\n");
}
intel_runtime_pm_put(dev_priv);
return 0;
}
static int i915_sr_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
bool sr_enabled = false;
intel_runtime_pm_get(dev_priv);
if (HAS_PCH_SPLIT(dev))
sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
else if (IS_CRESTLINE(dev) || IS_G4X(dev) ||
IS_I945G(dev) || IS_I945GM(dev))
sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
else if (IS_I915GM(dev))
sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
else if (IS_PINEVIEW(dev))
sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
intel_runtime_pm_put(dev_priv);
seq_printf(m, "self-refresh: %s\n",
sr_enabled ? "enabled" : "disabled");
return 0;
}
static int i915_emon_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long temp, chipset, gfx;
int ret;
if (!IS_GEN5(dev))
return -ENODEV;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
temp = i915_mch_val(dev_priv);
chipset = i915_chipset_val(dev_priv);
gfx = i915_gfx_val(dev_priv);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "GMCH temp: %ld\n", temp);
seq_printf(m, "Chipset power: %ld\n", chipset);
seq_printf(m, "GFX power: %ld\n", gfx);
seq_printf(m, "Total power: %ld\n", chipset + gfx);
return 0;
}
static int i915_ring_freq_table(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret = 0;
int gpu_freq, ia_freq;
unsigned int max_gpu_freq, min_gpu_freq;
if (!HAS_CORE_RING_FREQ(dev)) {
seq_puts(m, "unsupported on this chipset\n");
return 0;
}
intel_runtime_pm_get(dev_priv);
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
if (ret)
goto out;
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
/* Convert GT frequency to 50 HZ units */
min_gpu_freq =
dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
max_gpu_freq =
dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
} else {
min_gpu_freq = dev_priv->rps.min_freq_softlimit;
max_gpu_freq = dev_priv->rps.max_freq_softlimit;
}
seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
ia_freq = gpu_freq;
sandybridge_pcode_read(dev_priv,
GEN6_PCODE_READ_MIN_FREQ_TABLE,
&ia_freq);
seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
intel_gpu_freq(dev_priv, (gpu_freq *
(IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
GEN9_FREQ_SCALER : 1))),
((ia_freq >> 0) & 0xff) * 100,
((ia_freq >> 8) & 0xff) * 100);
}
mutex_unlock(&dev_priv->rps.hw_lock);
out:
intel_runtime_pm_put(dev_priv);
return ret;
}
static int i915_opregion(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_opregion *opregion = &dev_priv->opregion;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
goto out;
if (opregion->header)
seq_write(m, opregion->header, OPREGION_SIZE);
mutex_unlock(&dev->struct_mutex);
out:
return 0;
}
static int i915_vbt(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_opregion *opregion = &dev_priv->opregion;
if (opregion->vbt)
seq_write(m, opregion->vbt, opregion->vbt_size);
return 0;
}
static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct intel_framebuffer *fbdev_fb = NULL;
struct drm_framebuffer *drm_fb;
#ifdef CONFIG_DRM_FBDEV_EMULATION
if (to_i915(dev)->fbdev) {
fbdev_fb = to_intel_framebuffer(to_i915(dev)->fbdev->helper.fb);
seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
fbdev_fb->base.width,
fbdev_fb->base.height,
fbdev_fb->base.depth,
fbdev_fb->base.bits_per_pixel,
fbdev_fb->base.modifier[0],
atomic_read(&fbdev_fb->base.refcount.refcount));
describe_obj(m, fbdev_fb->obj);
seq_putc(m, '\n');
}
#endif
mutex_lock(&dev->mode_config.fb_lock);
drm_for_each_fb(drm_fb, dev) {
struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
if (fb == fbdev_fb)
continue;
seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
fb->base.width,
fb->base.height,
fb->base.depth,
fb->base.bits_per_pixel,
fb->base.modifier[0],
atomic_read(&fb->base.refcount.refcount));
describe_obj(m, fb->obj);
seq_putc(m, '\n');
}
mutex_unlock(&dev->mode_config.fb_lock);
return 0;
}
static void describe_ctx_ringbuf(struct seq_file *m,
struct intel_ringbuffer *ringbuf)
{
seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, last head: %d)",
ringbuf->space, ringbuf->head, ringbuf->tail,
ringbuf->last_retired_head);
}
static int i915_context_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
struct intel_context *ctx;
int ret, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
list_for_each_entry(ctx, &dev_priv->context_list, link) {
if (!i915.enable_execlists &&
ctx->legacy_hw_ctx.rcs_state == NULL)
continue;
seq_puts(m, "HW context ");
describe_ctx(m, ctx);
if (ctx == dev_priv->kernel_context)
seq_printf(m, "(kernel context) ");
if (i915.enable_execlists) {
seq_putc(m, '\n');
for_each_ring(ring, dev_priv, i) {
struct drm_i915_gem_object *ctx_obj =
ctx->engine[i].state;
struct intel_ringbuffer *ringbuf =
ctx->engine[i].ringbuf;
seq_printf(m, "%s: ", ring->name);
if (ctx_obj)
describe_obj(m, ctx_obj);
if (ringbuf)
describe_ctx_ringbuf(m, ringbuf);
seq_putc(m, '\n');
}
} else {
describe_obj(m, ctx->legacy_hw_ctx.rcs_state);
}
seq_putc(m, '\n');
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static void i915_dump_lrc_obj(struct seq_file *m,
struct intel_context *ctx,
struct intel_engine_cs *ring)
{
struct page *page;
uint32_t *reg_state;
int j;
struct drm_i915_gem_object *ctx_obj = ctx->engine[ring->id].state;
unsigned long ggtt_offset = 0;
if (ctx_obj == NULL) {
seq_printf(m, "Context on %s with no gem object\n",
ring->name);
return;
}
seq_printf(m, "CONTEXT: %s %u\n", ring->name,
intel_execlists_ctx_id(ctx, ring));
if (!i915_gem_obj_ggtt_bound(ctx_obj))
seq_puts(m, "\tNot bound in GGTT\n");
else
ggtt_offset = i915_gem_obj_ggtt_offset(ctx_obj);
if (i915_gem_object_get_pages(ctx_obj)) {
seq_puts(m, "\tFailed to get pages for context object\n");
return;
}
page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
if (!WARN_ON(page == NULL)) {
reg_state = kmap_atomic(page);
for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
seq_printf(m, "\t[0x%08lx] 0x%08x 0x%08x 0x%08x 0x%08x\n",
ggtt_offset + 4096 + (j * 4),
reg_state[j], reg_state[j + 1],
reg_state[j + 2], reg_state[j + 3]);
}
kunmap_atomic(reg_state);
}
seq_putc(m, '\n');
}
static int i915_dump_lrc(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
struct intel_context *ctx;
int ret, i;
if (!i915.enable_execlists) {
seq_printf(m, "Logical Ring Contexts are disabled\n");
return 0;
}
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
list_for_each_entry(ctx, &dev_priv->context_list, link)
if (ctx != dev_priv->kernel_context)
for_each_ring(ring, dev_priv, i)
i915_dump_lrc_obj(m, ctx, ring);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_execlists(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
u32 status_pointer;
u8 read_pointer;
u8 write_pointer;
u32 status;
u32 ctx_id;
struct list_head *cursor;
int ring_id, i;
int ret;
if (!i915.enable_execlists) {
seq_puts(m, "Logical Ring Contexts are disabled\n");
return 0;
}
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
for_each_ring(ring, dev_priv, ring_id) {
struct drm_i915_gem_request *head_req = NULL;
int count = 0;
unsigned long flags;
seq_printf(m, "%s\n", ring->name);
status = I915_READ(RING_EXECLIST_STATUS_LO(ring));
ctx_id = I915_READ(RING_EXECLIST_STATUS_HI(ring));
seq_printf(m, "\tExeclist status: 0x%08X, context: %u\n",
status, ctx_id);
status_pointer = I915_READ(RING_CONTEXT_STATUS_PTR(ring));
seq_printf(m, "\tStatus pointer: 0x%08X\n", status_pointer);
read_pointer = ring->next_context_status_buffer;
write_pointer = GEN8_CSB_WRITE_PTR(status_pointer);
if (read_pointer > write_pointer)
write_pointer += GEN8_CSB_ENTRIES;
seq_printf(m, "\tRead pointer: 0x%08X, write pointer 0x%08X\n",
read_pointer, write_pointer);
for (i = 0; i < GEN8_CSB_ENTRIES; i++) {
status = I915_READ(RING_CONTEXT_STATUS_BUF_LO(ring, i));
ctx_id = I915_READ(RING_CONTEXT_STATUS_BUF_HI(ring, i));
seq_printf(m, "\tStatus buffer %d: 0x%08X, context: %u\n",
i, status, ctx_id);
}
spin_lock_irqsave(&ring->execlist_lock, flags);
list_for_each(cursor, &ring->execlist_queue)
count++;
head_req = list_first_entry_or_null(&ring->execlist_queue,
struct drm_i915_gem_request, execlist_link);
spin_unlock_irqrestore(&ring->execlist_lock, flags);
seq_printf(m, "\t%d requests in queue\n", count);
if (head_req) {
seq_printf(m, "\tHead request id: %u\n",
intel_execlists_ctx_id(head_req->ctx, ring));
seq_printf(m, "\tHead request tail: %u\n",
head_req->tail);
}
seq_putc(m, '\n');
}
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static const char *swizzle_string(unsigned swizzle)
{
switch (swizzle) {
case I915_BIT_6_SWIZZLE_NONE:
return "none";
case I915_BIT_6_SWIZZLE_9:
return "bit9";
case I915_BIT_6_SWIZZLE_9_10:
return "bit9/bit10";
case I915_BIT_6_SWIZZLE_9_11:
return "bit9/bit11";
case I915_BIT_6_SWIZZLE_9_10_11:
return "bit9/bit10/bit11";
case I915_BIT_6_SWIZZLE_9_17:
return "bit9/bit17";
case I915_BIT_6_SWIZZLE_9_10_17:
return "bit9/bit10/bit17";
case I915_BIT_6_SWIZZLE_UNKNOWN:
return "unknown";
}
return "bug";
}
static int i915_swizzle_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
swizzle_string(dev_priv->mm.bit_6_swizzle_x));
seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
swizzle_string(dev_priv->mm.bit_6_swizzle_y));
if (IS_GEN3(dev) || IS_GEN4(dev)) {
seq_printf(m, "DDC = 0x%08x\n",
I915_READ(DCC));
seq_printf(m, "DDC2 = 0x%08x\n",
I915_READ(DCC2));
seq_printf(m, "C0DRB3 = 0x%04x\n",
I915_READ16(C0DRB3));
seq_printf(m, "C1DRB3 = 0x%04x\n",
I915_READ16(C1DRB3));
} else if (INTEL_INFO(dev)->gen >= 6) {
seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
I915_READ(MAD_DIMM_C0));
seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
I915_READ(MAD_DIMM_C1));
seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
I915_READ(MAD_DIMM_C2));
seq_printf(m, "TILECTL = 0x%08x\n",
I915_READ(TILECTL));
if (INTEL_INFO(dev)->gen >= 8)
seq_printf(m, "GAMTARBMODE = 0x%08x\n",
I915_READ(GAMTARBMODE));
else
seq_printf(m, "ARB_MODE = 0x%08x\n",
I915_READ(ARB_MODE));
seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
I915_READ(DISP_ARB_CTL));
}
if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
seq_puts(m, "L-shaped memory detected\n");
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int per_file_ctx(int id, void *ptr, void *data)
{
struct intel_context *ctx = ptr;
struct seq_file *m = data;
struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
if (!ppgtt) {
seq_printf(m, " no ppgtt for context %d\n",
ctx->user_handle);
return 0;
}
if (i915_gem_context_is_default(ctx))
seq_puts(m, " default context:\n");
else
seq_printf(m, " context %d:\n", ctx->user_handle);
ppgtt->debug_dump(ppgtt, m);
return 0;
}
static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
int unused, i;
if (!ppgtt)
return;
for_each_ring(ring, dev_priv, unused) {
seq_printf(m, "%s\n", ring->name);
for (i = 0; i < 4; i++) {
u64 pdp = I915_READ(GEN8_RING_PDP_UDW(ring, i));
pdp <<= 32;
pdp |= I915_READ(GEN8_RING_PDP_LDW(ring, i));
seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
}
}
}
static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
int i;
if (INTEL_INFO(dev)->gen == 6)
seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
for_each_ring(ring, dev_priv, i) {
seq_printf(m, "%s\n", ring->name);
if (INTEL_INFO(dev)->gen == 7)
seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
}
if (dev_priv->mm.aliasing_ppgtt) {
struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
seq_puts(m, "aliasing PPGTT:\n");
seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
ppgtt->debug_dump(ppgtt, m);
}
seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
}
static int i915_ppgtt_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_file *file;
int ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
if (INTEL_INFO(dev)->gen >= 8)
gen8_ppgtt_info(m, dev);
else if (INTEL_INFO(dev)->gen >= 6)
gen6_ppgtt_info(m, dev);
list_for_each_entry_reverse(file, &dev->filelist, lhead) {
struct drm_i915_file_private *file_priv = file->driver_priv;
struct task_struct *task;
task = get_pid_task(file->pid, PIDTYPE_PID);
if (!task) {
ret = -ESRCH;
goto out_put;
}
seq_printf(m, "\nproc: %s\n", task->comm);
put_task_struct(task);
idr_for_each(&file_priv->context_idr, per_file_ctx,
(void *)(unsigned long)m);
}
out_put:
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return ret;
}
static int count_irq_waiters(struct drm_i915_private *i915)
{
struct intel_engine_cs *ring;
int count = 0;
int i;
for_each_ring(ring, i915, i)
count += ring->irq_refcount;
return count;
}
static int i915_rps_boost_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_file *file;
seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
seq_printf(m, "GPU busy? %d\n", dev_priv->mm.busy);
seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
seq_printf(m, "Frequency requested %d; min hard:%d, soft:%d; max soft:%d, hard:%d\n",
intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
spin_lock(&dev_priv->rps.client_lock);
list_for_each_entry_reverse(file, &dev->filelist, lhead) {
struct drm_i915_file_private *file_priv = file->driver_priv;
struct task_struct *task;
rcu_read_lock();
task = pid_task(file->pid, PIDTYPE_PID);
seq_printf(m, "%s [%d]: %d boosts%s\n",
task ? task->comm : "<unknown>",
task ? task->pid : -1,
file_priv->rps.boosts,
list_empty(&file_priv->rps.link) ? "" : ", active");
rcu_read_unlock();
}
seq_printf(m, "Semaphore boosts: %d%s\n",
dev_priv->rps.semaphores.boosts,
list_empty(&dev_priv->rps.semaphores.link) ? "" : ", active");
seq_printf(m, "MMIO flip boosts: %d%s\n",
dev_priv->rps.mmioflips.boosts,
list_empty(&dev_priv->rps.mmioflips.link) ? "" : ", active");
seq_printf(m, "Kernel boosts: %d\n", dev_priv->rps.boosts);
spin_unlock(&dev_priv->rps.client_lock);
return 0;
}
static int i915_llc(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
/* Size calculation for LLC is a bit of a pain. Ignore for now. */
seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
seq_printf(m, "eLLC: %zuMB\n", dev_priv->ellc_size);
return 0;
}
static int i915_guc_load_status_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_i915_private *dev_priv = node->minor->dev->dev_private;
struct intel_guc_fw *guc_fw = &dev_priv->guc.guc_fw;
u32 tmp, i;
if (!HAS_GUC_UCODE(dev_priv->dev))
return 0;
seq_printf(m, "GuC firmware status:\n");
seq_printf(m, "\tpath: %s\n",
guc_fw->guc_fw_path);
seq_printf(m, "\tfetch: %s\n",
intel_guc_fw_status_repr(guc_fw->guc_fw_fetch_status));
seq_printf(m, "\tload: %s\n",
intel_guc_fw_status_repr(guc_fw->guc_fw_load_status));
seq_printf(m, "\tversion wanted: %d.%d\n",
guc_fw->guc_fw_major_wanted, guc_fw->guc_fw_minor_wanted);
seq_printf(m, "\tversion found: %d.%d\n",
guc_fw->guc_fw_major_found, guc_fw->guc_fw_minor_found);
seq_printf(m, "\theader: offset is %d; size = %d\n",
guc_fw->header_offset, guc_fw->header_size);
seq_printf(m, "\tuCode: offset is %d; size = %d\n",
guc_fw->ucode_offset, guc_fw->ucode_size);
seq_printf(m, "\tRSA: offset is %d; size = %d\n",
guc_fw->rsa_offset, guc_fw->rsa_size);
tmp = I915_READ(GUC_STATUS);
seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
seq_printf(m, "\tBootrom status = 0x%x\n",
(tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
seq_printf(m, "\tuKernel status = 0x%x\n",
(tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
seq_printf(m, "\tMIA Core status = 0x%x\n",
(tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
seq_puts(m, "\nScratch registers:\n");
for (i = 0; i < 16; i++)
seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i)));
return 0;
}
static void i915_guc_client_info(struct seq_file *m,
struct drm_i915_private *dev_priv,
struct i915_guc_client *client)
{
struct intel_engine_cs *ring;
uint64_t tot = 0;
uint32_t i;
seq_printf(m, "\tPriority %d, GuC ctx index: %u, PD offset 0x%x\n",
client->priority, client->ctx_index, client->proc_desc_offset);
seq_printf(m, "\tDoorbell id %d, offset: 0x%x, cookie 0x%x\n",
client->doorbell_id, client->doorbell_offset, client->cookie);
seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
client->wq_size, client->wq_offset, client->wq_tail);
seq_printf(m, "\tFailed to queue: %u\n", client->q_fail);
seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
seq_printf(m, "\tLast submission result: %d\n", client->retcode);
for_each_ring(ring, dev_priv, i) {
seq_printf(m, "\tSubmissions: %llu %s\n",
client->submissions[ring->guc_id],
ring->name);
tot += client->submissions[ring->guc_id];
}
seq_printf(m, "\tTotal: %llu\n", tot);
}
static int i915_guc_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_guc guc;
struct i915_guc_client client = {};
struct intel_engine_cs *ring;
enum intel_ring_id i;
u64 total = 0;
if (!HAS_GUC_SCHED(dev_priv->dev))
return 0;
if (mutex_lock_interruptible(&dev->struct_mutex))
return 0;
/* Take a local copy of the GuC data, so we can dump it at leisure */
guc = dev_priv->guc;
if (guc.execbuf_client)
client = *guc.execbuf_client;
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "GuC total action count: %llu\n", guc.action_count);
seq_printf(m, "GuC action failure count: %u\n", guc.action_fail);
seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);
seq_printf(m, "GuC last action status: 0x%x\n", guc.action_status);
seq_printf(m, "GuC last action error code: %d\n", guc.action_err);
seq_printf(m, "\nGuC submissions:\n");
for_each_ring(ring, dev_priv, i) {
seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
ring->name, guc.submissions[ring->guc_id],
guc.last_seqno[ring->guc_id]);
total += guc.submissions[ring->guc_id];
}
seq_printf(m, "\t%s: %llu\n", "Total", total);
seq_printf(m, "\nGuC execbuf client @ %p:\n", guc.execbuf_client);
i915_guc_client_info(m, dev_priv, &client);
/* Add more as required ... */
return 0;
}
static int i915_guc_log_dump(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *log_obj = dev_priv->guc.log_obj;
u32 *log;
int i = 0, pg;
if (!log_obj)
return 0;
for (pg = 0; pg < log_obj->base.size / PAGE_SIZE; pg++) {
log = kmap_atomic(i915_gem_object_get_page(log_obj, pg));
for (i = 0; i < PAGE_SIZE / sizeof(u32); i += 4)
seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
*(log + i), *(log + i + 1),
*(log + i + 2), *(log + i + 3));
kunmap_atomic(log);
}
seq_putc(m, '\n');
return 0;
}
static int i915_edp_psr_status(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 psrperf = 0;
u32 stat[3];
enum pipe pipe;
bool enabled = false;
if (!HAS_PSR(dev)) {
seq_puts(m, "PSR not supported\n");
return 0;
}
intel_runtime_pm_get(dev_priv);
mutex_lock(&dev_priv->psr.lock);
seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
dev_priv->psr.busy_frontbuffer_bits);
seq_printf(m, "Re-enable work scheduled: %s\n",
yesno(work_busy(&dev_priv->psr.work.work)));
if (HAS_DDI(dev))
enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
else {
for_each_pipe(dev_priv, pipe) {
stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
VLV_EDP_PSR_CURR_STATE_MASK;
if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
(stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
enabled = true;
}
}
seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
if (!HAS_DDI(dev))
for_each_pipe(dev_priv, pipe) {
if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
(stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
seq_printf(m, " pipe %c", pipe_name(pipe));
}
seq_puts(m, "\n");
/*
* VLV/CHV PSR has no kind of performance counter
* SKL+ Perf counter is reset to 0 everytime DC state is entered
*/
if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
psrperf = I915_READ(EDP_PSR_PERF_CNT) &
EDP_PSR_PERF_CNT_MASK;
seq_printf(m, "Performance_Counter: %u\n", psrperf);
}
mutex_unlock(&dev_priv->psr.lock);
intel_runtime_pm_put(dev_priv);
return 0;
}
static int i915_sink_crc(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct intel_encoder *encoder;
struct intel_connector *connector;
struct intel_dp *intel_dp = NULL;
int ret;
u8 crc[6];
drm_modeset_lock_all(dev);
for_each_intel_connector(dev, connector) {
if (connector->base.dpms != DRM_MODE_DPMS_ON)
continue;
if (!connector->base.encoder)
continue;
encoder = to_intel_encoder(connector->base.encoder);
if (encoder->type != INTEL_OUTPUT_EDP)
continue;
intel_dp = enc_to_intel_dp(&encoder->base);
ret = intel_dp_sink_crc(intel_dp, crc);
if (ret)
goto out;
seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
crc[0], crc[1], crc[2],
crc[3], crc[4], crc[5]);
goto out;
}
ret = -ENODEV;
out:
drm_modeset_unlock_all(dev);
return ret;
}
static int i915_energy_uJ(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u64 power;
u32 units;
if (INTEL_INFO(dev)->gen < 6)
return -ENODEV;
intel_runtime_pm_get(dev_priv);
rdmsrl(MSR_RAPL_POWER_UNIT, power);
power = (power & 0x1f00) >> 8;
units = 1000000 / (1 << power); /* convert to uJ */
power = I915_READ(MCH_SECP_NRG_STTS);
power *= units;
intel_runtime_pm_put(dev_priv);
seq_printf(m, "%llu", (long long unsigned)power);
return 0;
}
static int i915_runtime_pm_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
if (!HAS_RUNTIME_PM(dev)) {
seq_puts(m, "not supported\n");
return 0;
}
seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->mm.busy));
seq_printf(m, "IRQs disabled: %s\n",
yesno(!intel_irqs_enabled(dev_priv)));
#ifdef CONFIG_PM
seq_printf(m, "Usage count: %d\n",
atomic_read(&dev->dev->power.usage_count));
#else
seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
#endif
return 0;
}
static int i915_power_domain_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_power_domains *power_domains = &dev_priv->power_domains;
int i;
mutex_lock(&power_domains->lock);
seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
for (i = 0; i < power_domains->power_well_count; i++) {
struct i915_power_well *power_well;
enum intel_display_power_domain power_domain;
power_well = &power_domains->power_wells[i];
seq_printf(m, "%-25s %d\n", power_well->name,
power_well->count);
for (power_domain = 0; power_domain < POWER_DOMAIN_NUM;
power_domain++) {
if (!(BIT(power_domain) & power_well->domains))
continue;
seq_printf(m, " %-23s %d\n",
intel_display_power_domain_str(power_domain),
power_domains->domain_use_count[power_domain]);
}
}
mutex_unlock(&power_domains->lock);
return 0;
}
static int i915_dmc_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_csr *csr;
if (!HAS_CSR(dev)) {
seq_puts(m, "not supported\n");
return 0;
}
csr = &dev_priv->csr;
intel_runtime_pm_get(dev_priv);
seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
seq_printf(m, "path: %s\n", csr->fw_path);
if (!csr->dmc_payload)
goto out;
seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
CSR_VERSION_MINOR(csr->version));
if (IS_SKYLAKE(dev) && csr->version >= CSR_VERSION(1, 6)) {
seq_printf(m, "DC3 -> DC5 count: %d\n",
I915_READ(SKL_CSR_DC3_DC5_COUNT));
seq_printf(m, "DC5 -> DC6 count: %d\n",
I915_READ(SKL_CSR_DC5_DC6_COUNT));
} else if (IS_BROXTON(dev) && csr->version >= CSR_VERSION(1, 4)) {
seq_printf(m, "DC3 -> DC5 count: %d\n",
I915_READ(BXT_CSR_DC3_DC5_COUNT));
}
out:
seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
intel_runtime_pm_put(dev_priv);
return 0;
}
static void intel_seq_print_mode(struct seq_file *m, int tabs,
struct drm_display_mode *mode)
{
int i;
for (i = 0; i < tabs; i++)
seq_putc(m, '\t');
seq_printf(m, "id %d:\"%s\" freq %d clock %d hdisp %d hss %d hse %d htot %d vdisp %d vss %d vse %d vtot %d type 0x%x flags 0x%x\n",
mode->base.id, mode->name,
mode->vrefresh, mode->clock,
mode->hdisplay, mode->hsync_start,
mode->hsync_end, mode->htotal,
mode->vdisplay, mode->vsync_start,
mode->vsync_end, mode->vtotal,
mode->type, mode->flags);
}
static void intel_encoder_info(struct seq_file *m,
struct intel_crtc *intel_crtc,
struct intel_encoder *intel_encoder)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_crtc *crtc = &intel_crtc->base;
struct intel_connector *intel_connector;
struct drm_encoder *encoder;
encoder = &intel_encoder->base;
seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
encoder->base.id, encoder->name);
for_each_connector_on_encoder(dev, encoder, intel_connector) {
struct drm_connector *connector = &intel_connector->base;
seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
connector->base.id,
connector->name,
drm_get_connector_status_name(connector->status));
if (connector->status == connector_status_connected) {
struct drm_display_mode *mode = &crtc->mode;
seq_printf(m, ", mode:\n");
intel_seq_print_mode(m, 2, mode);
} else {
seq_putc(m, '\n');
}
}
}
static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_crtc *crtc = &intel_crtc->base;
struct intel_encoder *intel_encoder;
struct drm_plane_state *plane_state = crtc->primary->state;
struct drm_framebuffer *fb = plane_state->fb;
if (fb)
seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
fb->base.id, plane_state->src_x >> 16,
plane_state->src_y >> 16, fb->width, fb->height);
else
seq_puts(m, "\tprimary plane disabled\n");
for_each_encoder_on_crtc(dev, crtc, intel_encoder)
intel_encoder_info(m, intel_crtc, intel_encoder);
}
static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
{
struct drm_display_mode *mode = panel->fixed_mode;
seq_printf(m, "\tfixed mode:\n");
intel_seq_print_mode(m, 2, mode);
}
static void intel_dp_info(struct seq_file *m,
struct intel_connector *intel_connector)
{
struct intel_encoder *intel_encoder = intel_connector->encoder;
struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
if (intel_encoder->type == INTEL_OUTPUT_EDP)
intel_panel_info(m, &intel_connector->panel);
}
static void intel_dp_mst_info(struct seq_file *m,
struct intel_connector *intel_connector)
{
struct intel_encoder *intel_encoder = intel_connector->encoder;
struct intel_dp_mst_encoder *intel_mst =
enc_to_mst(&intel_encoder->base);
struct intel_digital_port *intel_dig_port = intel_mst->primary;
struct intel_dp *intel_dp = &intel_dig_port->dp;
bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
intel_connector->port);
seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
}
static void intel_hdmi_info(struct seq_file *m,
struct intel_connector *intel_connector)
{
struct intel_encoder *intel_encoder = intel_connector->encoder;
struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
}
static void intel_lvds_info(struct seq_file *m,
struct intel_connector *intel_connector)
{
intel_panel_info(m, &intel_connector->panel);
}
static void intel_connector_info(struct seq_file *m,
struct drm_connector *connector)
{
struct intel_connector *intel_connector = to_intel_connector(connector);
struct intel_encoder *intel_encoder = intel_connector->encoder;
struct drm_display_mode *mode;
seq_printf(m, "connector %d: type %s, status: %s\n",
connector->base.id, connector->name,
drm_get_connector_status_name(connector->status));
if (connector->status == connector_status_connected) {
seq_printf(m, "\tname: %s\n", connector->display_info.name);
seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
connector->display_info.width_mm,
connector->display_info.height_mm);
seq_printf(m, "\tsubpixel order: %s\n",
drm_get_subpixel_order_name(connector->display_info.subpixel_order));
seq_printf(m, "\tCEA rev: %d\n",
connector->display_info.cea_rev);
}
if (intel_encoder) {
if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
intel_encoder->type == INTEL_OUTPUT_EDP)
intel_dp_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_HDMI)
intel_hdmi_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_LVDS)
intel_lvds_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
intel_dp_mst_info(m, intel_connector);
}
seq_printf(m, "\tmodes:\n");
list_for_each_entry(mode, &connector->modes, head)
intel_seq_print_mode(m, 2, mode);
}
static bool cursor_active(struct drm_device *dev, int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 state;
if (IS_845G(dev) || IS_I865G(dev))
state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
else
state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
return state;
}
static bool cursor_position(struct drm_device *dev, int pipe, int *x, int *y)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 pos;
pos = I915_READ(CURPOS(pipe));
*x = (pos >> CURSOR_X_SHIFT) & CURSOR_POS_MASK;
if (pos & (CURSOR_POS_SIGN << CURSOR_X_SHIFT))
*x = -*x;
*y = (pos >> CURSOR_Y_SHIFT) & CURSOR_POS_MASK;
if (pos & (CURSOR_POS_SIGN << CURSOR_Y_SHIFT))
*y = -*y;
return cursor_active(dev, pipe);
}
static const char *plane_type(enum drm_plane_type type)
{
switch (type) {
case DRM_PLANE_TYPE_OVERLAY:
return "OVL";
case DRM_PLANE_TYPE_PRIMARY:
return "PRI";
case DRM_PLANE_TYPE_CURSOR:
return "CUR";
/*
* Deliberately omitting default: to generate compiler warnings
* when a new drm_plane_type gets added.
*/
}
return "unknown";
}
static const char *plane_rotation(unsigned int rotation)
{
static char buf[48];
/*
* According to doc only one DRM_ROTATE_ is allowed but this
* will print them all to visualize if the values are misused
*/
snprintf(buf, sizeof(buf),
"%s%s%s%s%s%s(0x%08x)",
(rotation & BIT(DRM_ROTATE_0)) ? "0 " : "",
(rotation & BIT(DRM_ROTATE_90)) ? "90 " : "",
(rotation & BIT(DRM_ROTATE_180)) ? "180 " : "",
(rotation & BIT(DRM_ROTATE_270)) ? "270 " : "",
(rotation & BIT(DRM_REFLECT_X)) ? "FLIPX " : "",
(rotation & BIT(DRM_REFLECT_Y)) ? "FLIPY " : "",
rotation);
return buf;
}
static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct intel_plane *intel_plane;
for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
struct drm_plane_state *state;
struct drm_plane *plane = &intel_plane->base;
if (!plane->state) {
seq_puts(m, "plane->state is NULL!\n");
continue;
}
state = plane->state;
seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n",
plane->base.id,
plane_type(intel_plane->base.type),
state->crtc_x, state->crtc_y,
state->crtc_w, state->crtc_h,
(state->src_x >> 16),
((state->src_x & 0xffff) * 15625) >> 10,
(state->src_y >> 16),
((state->src_y & 0xffff) * 15625) >> 10,
(state->src_w >> 16),
((state->src_w & 0xffff) * 15625) >> 10,
(state->src_h >> 16),
((state->src_h & 0xffff) * 15625) >> 10,
state->fb ? drm_get_format_name(state->fb->pixel_format) : "N/A",
plane_rotation(state->rotation));
}
}
static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
{
struct intel_crtc_state *pipe_config;
int num_scalers = intel_crtc->num_scalers;
int i;
pipe_config = to_intel_crtc_state(intel_crtc->base.state);
/* Not all platformas have a scaler */
if (num_scalers) {
seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
num_scalers,
pipe_config->scaler_state.scaler_users,
pipe_config->scaler_state.scaler_id);
for (i = 0; i < SKL_NUM_SCALERS; i++) {
struct intel_scaler *sc =
&pipe_config->scaler_state.scalers[i];
seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
i, yesno(sc->in_use), sc->mode);
}
seq_puts(m, "\n");
} else {
seq_puts(m, "\tNo scalers available on this platform\n");
}
}
static int i915_display_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *crtc;
struct drm_connector *connector;
intel_runtime_pm_get(dev_priv);
drm_modeset_lock_all(dev);
seq_printf(m, "CRTC info\n");
seq_printf(m, "---------\n");
for_each_intel_crtc(dev, crtc) {
bool active;
struct intel_crtc_state *pipe_config;
int x, y;
pipe_config = to_intel_crtc_state(crtc->base.state);
seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
crtc->base.base.id, pipe_name(crtc->pipe),
yesno(pipe_config->base.active),
pipe_config->pipe_src_w, pipe_config->pipe_src_h,
yesno(pipe_config->dither), pipe_config->pipe_bpp);
if (pipe_config->base.active) {
intel_crtc_info(m, crtc);
active = cursor_position(dev, crtc->pipe, &x, &y);
seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
yesno(crtc->cursor_base),
x, y, crtc->base.cursor->state->crtc_w,
crtc->base.cursor->state->crtc_h,
crtc->cursor_addr, yesno(active));
intel_scaler_info(m, crtc);
intel_plane_info(m, crtc);
}
seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
yesno(!crtc->cpu_fifo_underrun_disabled),
yesno(!crtc->pch_fifo_underrun_disabled));
}
seq_printf(m, "\n");
seq_printf(m, "Connector info\n");
seq_printf(m, "--------------\n");
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
intel_connector_info(m, connector);
}
drm_modeset_unlock_all(dev);
intel_runtime_pm_put(dev_priv);
return 0;
}
static int i915_semaphore_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
int num_rings = hweight32(INTEL_INFO(dev)->ring_mask);
int i, j, ret;
if (!i915_semaphore_is_enabled(dev)) {
seq_puts(m, "Semaphores are disabled\n");
return 0;
}
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
if (IS_BROADWELL(dev)) {
struct page *page;
uint64_t *seqno;
page = i915_gem_object_get_page(dev_priv->semaphore_obj, 0);
seqno = (uint64_t *)kmap_atomic(page);
for_each_ring(ring, dev_priv, i) {
uint64_t offset;
seq_printf(m, "%s\n", ring->name);
seq_puts(m, " Last signal:");
for (j = 0; j < num_rings; j++) {
offset = i * I915_NUM_RINGS + j;
seq_printf(m, "0x%08llx (0x%02llx) ",
seqno[offset], offset * 8);
}
seq_putc(m, '\n');
seq_puts(m, " Last wait: ");
for (j = 0; j < num_rings; j++) {
offset = i + (j * I915_NUM_RINGS);
seq_printf(m, "0x%08llx (0x%02llx) ",
seqno[offset], offset * 8);
}
seq_putc(m, '\n');
}
kunmap_atomic(seqno);
} else {
seq_puts(m, " Last signal:");
for_each_ring(ring, dev_priv, i)
for (j = 0; j < num_rings; j++)
seq_printf(m, "0x%08x\n",
I915_READ(ring->semaphore.mbox.signal[j]));
seq_putc(m, '\n');
}
seq_puts(m, "\nSync seqno:\n");
for_each_ring(ring, dev_priv, i) {
for (j = 0; j < num_rings; j++) {
seq_printf(m, " 0x%08x ", ring->semaphore.sync_seqno[j]);
}
seq_putc(m, '\n');
}
seq_putc(m, '\n');
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_shared_dplls_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
drm_modeset_lock_all(dev);
for (i = 0; i < dev_priv->num_shared_dpll; i++) {
struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
seq_printf(m, " crtc_mask: 0x%08x, active: %d, on: %s\n",
pll->config.crtc_mask, pll->active, yesno(pll->on));
seq_printf(m, " tracked hardware state:\n");
seq_printf(m, " dpll: 0x%08x\n", pll->config.hw_state.dpll);
seq_printf(m, " dpll_md: 0x%08x\n",
pll->config.hw_state.dpll_md);
seq_printf(m, " fp0: 0x%08x\n", pll->config.hw_state.fp0);
seq_printf(m, " fp1: 0x%08x\n", pll->config.hw_state.fp1);
seq_printf(m, " wrpll: 0x%08x\n", pll->config.hw_state.wrpll);
}
drm_modeset_unlock_all(dev);
return 0;
}
static int i915_wa_registers(struct seq_file *m, void *unused)
{
int i;
int ret;
struct intel_engine_cs *ring;
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_workarounds *workarounds = &dev_priv->workarounds;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
for_each_ring(ring, dev_priv, i)
seq_printf(m, "HW whitelist count for %s: %d\n",
ring->name, workarounds->hw_whitelist_count[i]);
for (i = 0; i < workarounds->count; ++i) {
i915_reg_t addr;
u32 mask, value, read;
bool ok;
addr = workarounds->reg[i].addr;
mask = workarounds->reg[i].mask;
value = workarounds->reg[i].value;
read = I915_READ(addr);
ok = (value & mask) == (read & mask);
seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
i915_mmio_reg_offset(addr), value, mask, read, ok ? "OK" : "FAIL");
}
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_ddb_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct skl_ddb_allocation *ddb;
struct skl_ddb_entry *entry;
enum pipe pipe;
int plane;
if (INTEL_INFO(dev)->gen < 9)
return 0;
drm_modeset_lock_all(dev);
ddb = &dev_priv->wm.skl_hw.ddb;
seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
for_each_pipe(dev_priv, pipe) {
seq_printf(m, "Pipe %c\n", pipe_name(pipe));
for_each_plane(dev_priv, pipe, plane) {
entry = &ddb->plane[pipe][plane];
seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
entry->start, entry->end,
skl_ddb_entry_size(entry));
}
entry = &ddb->plane[pipe][PLANE_CURSOR];
seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
entry->end, skl_ddb_entry_size(entry));
}
drm_modeset_unlock_all(dev);
return 0;
}
static void drrs_status_per_crtc(struct seq_file *m,
struct drm_device *dev, struct intel_crtc *intel_crtc)
{
struct intel_encoder *intel_encoder;
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_drrs *drrs = &dev_priv->drrs;
int vrefresh = 0;
for_each_encoder_on_crtc(dev, &intel_crtc->base, intel_encoder) {
/* Encoder connected on this CRTC */
switch (intel_encoder->type) {
case INTEL_OUTPUT_EDP:
seq_puts(m, "eDP:\n");
break;
case INTEL_OUTPUT_DSI:
seq_puts(m, "DSI:\n");
break;
case INTEL_OUTPUT_HDMI:
seq_puts(m, "HDMI:\n");
break;
case INTEL_OUTPUT_DISPLAYPORT:
seq_puts(m, "DP:\n");
break;
default:
seq_printf(m, "Other encoder (id=%d).\n",
intel_encoder->type);
return;
}
}
if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
seq_puts(m, "\tVBT: DRRS_type: Static");
else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
seq_puts(m, "\tVBT: DRRS_type: Seamless");
else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
seq_puts(m, "\tVBT: DRRS_type: None");
else
seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
seq_puts(m, "\n\n");
if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
struct intel_panel *panel;
mutex_lock(&drrs->mutex);
/* DRRS Supported */
seq_puts(m, "\tDRRS Supported: Yes\n");
/* disable_drrs() will make drrs->dp NULL */
if (!drrs->dp) {
seq_puts(m, "Idleness DRRS: Disabled");
mutex_unlock(&drrs->mutex);
return;
}
panel = &drrs->dp->attached_connector->panel;
seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
drrs->busy_frontbuffer_bits);
seq_puts(m, "\n\t\t");
if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
vrefresh = panel->fixed_mode->vrefresh;
} else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
vrefresh = panel->downclock_mode->vrefresh;
} else {
seq_printf(m, "DRRS_State: Unknown(%d)\n",
drrs->refresh_rate_type);
mutex_unlock(&drrs->mutex);
return;
}
seq_printf(m, "\t\tVrefresh: %d", vrefresh);
seq_puts(m, "\n\t\t");
mutex_unlock(&drrs->mutex);
} else {
/* DRRS not supported. Print the VBT parameter*/
seq_puts(m, "\tDRRS Supported : No");
}
seq_puts(m, "\n");
}
static int i915_drrs_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct intel_crtc *intel_crtc;
int active_crtc_cnt = 0;
for_each_intel_crtc(dev, intel_crtc) {
drm_modeset_lock(&intel_crtc->base.mutex, NULL);
if (intel_crtc->base.state->active) {
active_crtc_cnt++;
seq_printf(m, "\nCRTC %d: ", active_crtc_cnt);
drrs_status_per_crtc(m, dev, intel_crtc);
}
drm_modeset_unlock(&intel_crtc->base.mutex);
}
if (!active_crtc_cnt)
seq_puts(m, "No active crtc found\n");
return 0;
}
struct pipe_crc_info {
const char *name;
struct drm_device *dev;
enum pipe pipe;
};
static int i915_dp_mst_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_encoder *encoder;
struct intel_encoder *intel_encoder;
struct intel_digital_port *intel_dig_port;
drm_modeset_lock_all(dev);
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
intel_encoder = to_intel_encoder(encoder);
if (intel_encoder->type != INTEL_OUTPUT_DISPLAYPORT)
continue;
intel_dig_port = enc_to_dig_port(encoder);
if (!intel_dig_port->dp.can_mst)
continue;
drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
}
drm_modeset_unlock_all(dev);
return 0;
}
static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
{
struct pipe_crc_info *info = inode->i_private;
struct drm_i915_private *dev_priv = info->dev->dev_private;
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
if (info->pipe >= INTEL_INFO(info->dev)->num_pipes)
return -ENODEV;
spin_lock_irq(&pipe_crc->lock);
if (pipe_crc->opened) {
spin_unlock_irq(&pipe_crc->lock);
return -EBUSY; /* already open */
}
pipe_crc->opened = true;
filep->private_data = inode->i_private;
spin_unlock_irq(&pipe_crc->lock);
return 0;
}
static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
{
struct pipe_crc_info *info = inode->i_private;
struct drm_i915_private *dev_priv = info->dev->dev_private;
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
spin_lock_irq(&pipe_crc->lock);
pipe_crc->opened = false;
spin_unlock_irq(&pipe_crc->lock);
return 0;
}
/* (6 fields, 8 chars each, space separated (5) + '\n') */
#define PIPE_CRC_LINE_LEN (6 * 8 + 5 + 1)
/* account for \'0' */
#define PIPE_CRC_BUFFER_LEN (PIPE_CRC_LINE_LEN + 1)
static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
{
assert_spin_locked(&pipe_crc->lock);
return CIRC_CNT(pipe_crc->head, pipe_crc->tail,
INTEL_PIPE_CRC_ENTRIES_NR);
}
static ssize_t
i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
loff_t *pos)
{
struct pipe_crc_info *info = filep->private_data;
struct drm_device *dev = info->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
char buf[PIPE_CRC_BUFFER_LEN];
int n_entries;
ssize_t bytes_read;
/*
* Don't allow user space to provide buffers not big enough to hold
* a line of data.
*/
if (count < PIPE_CRC_LINE_LEN)
return -EINVAL;
if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
return 0;
/* nothing to read */
spin_lock_irq(&pipe_crc->lock);
while (pipe_crc_data_count(pipe_crc) == 0) {
int ret;
if (filep->f_flags & O_NONBLOCK) {
spin_unlock_irq(&pipe_crc->lock);
return -EAGAIN;
}
ret = wait_event_interruptible_lock_irq(pipe_crc->wq,
pipe_crc_data_count(pipe_crc), pipe_crc->lock);
if (ret) {
spin_unlock_irq(&pipe_crc->lock);
return ret;
}
}
/* We now have one or more entries to read */
n_entries = count / PIPE_CRC_LINE_LEN;
bytes_read = 0;
while (n_entries > 0) {
struct intel_pipe_crc_entry *entry =
&pipe_crc->entries[pipe_crc->tail];
int ret;
if (CIRC_CNT(pipe_crc->head, pipe_crc->tail,
INTEL_PIPE_CRC_ENTRIES_NR) < 1)
break;
BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
pipe_crc->tail = (pipe_crc->tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
"%8u %8x %8x %8x %8x %8x\n",
entry->frame, entry->crc[0],
entry->crc[1], entry->crc[2],
entry->crc[3], entry->crc[4]);
spin_unlock_irq(&pipe_crc->lock);
ret = copy_to_user(user_buf, buf, PIPE_CRC_LINE_LEN);
if (ret == PIPE_CRC_LINE_LEN)
return -EFAULT;
user_buf += PIPE_CRC_LINE_LEN;
n_entries--;
spin_lock_irq(&pipe_crc->lock);
}
spin_unlock_irq(&pipe_crc->lock);
return bytes_read;
}
static const struct file_operations i915_pipe_crc_fops = {
.owner = THIS_MODULE,
.open = i915_pipe_crc_open,
.read = i915_pipe_crc_read,
.release = i915_pipe_crc_release,
};
static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
{
.name = "i915_pipe_A_crc",
.pipe = PIPE_A,
},
{
.name = "i915_pipe_B_crc",
.pipe = PIPE_B,
},
{
.name = "i915_pipe_C_crc",
.pipe = PIPE_C,
},
};
static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
enum pipe pipe)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
info->dev = dev;
ent = debugfs_create_file(info->name, S_IRUGO, root, info,
&i915_pipe_crc_fops);
if (!ent)
return -ENOMEM;
return drm_add_fake_info_node(minor, ent, info);
}
static const char * const pipe_crc_sources[] = {
"none",
"plane1",
"plane2",
"pf",
"pipe",
"TV",
"DP-B",
"DP-C",
"DP-D",
"auto",
};
static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
{
BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
return pipe_crc_sources[source];
}
static int display_crc_ctl_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
for (i = 0; i < I915_MAX_PIPES; i++)
seq_printf(m, "%c %s\n", pipe_name(i),
pipe_crc_source_name(dev_priv->pipe_crc[i].source));
return 0;
}
static int display_crc_ctl_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
return single_open(file, display_crc_ctl_show, dev);
}
static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
uint32_t *val)
{
if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
*source = INTEL_PIPE_CRC_SOURCE_PIPE;
switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
return 0;
}
static int i9xx_pipe_crc_auto_source(struct drm_device *dev, enum pipe pipe,
enum intel_pipe_crc_source *source)
{
struct intel_encoder *encoder;
struct intel_crtc *crtc;
struct intel_digital_port *dig_port;
int ret = 0;
*source = INTEL_PIPE_CRC_SOURCE_PIPE;
drm_modeset_lock_all(dev);
for_each_intel_encoder(dev, encoder) {
if (!encoder->base.crtc)
continue;
crtc = to_intel_crtc(encoder->base.crtc);
if (crtc->pipe != pipe)
continue;
switch (encoder->type) {
case INTEL_OUTPUT_TVOUT:
*source = INTEL_PIPE_CRC_SOURCE_TV;
break;
case INTEL_OUTPUT_DISPLAYPORT:
case INTEL_OUTPUT_EDP:
dig_port = enc_to_dig_port(&encoder->base);
switch (dig_port->port) {
case PORT_B:
*source = INTEL_PIPE_CRC_SOURCE_DP_B;
break;
case PORT_C:
*source = INTEL_PIPE_CRC_SOURCE_DP_C;
break;
case PORT_D:
*source = INTEL_PIPE_CRC_SOURCE_DP_D;
break;
default:
WARN(1, "nonexisting DP port %c\n",
port_name(dig_port->port));
break;
}
break;
default:
break;
}
}
drm_modeset_unlock_all(dev);
return ret;
}
static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
enum pipe pipe,
enum intel_pipe_crc_source *source,
uint32_t *val)
{
struct drm_i915_private *dev_priv = dev->dev_private;
bool need_stable_symbols = false;
if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
if (ret)
return ret;
}
switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
break;
case INTEL_PIPE_CRC_SOURCE_DP_B:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_DP_C:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_DP_D:
if (!IS_CHERRYVIEW(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
/*
* When the pipe CRC tap point is after the transcoders we need
* to tweak symbol-level features to produce a deterministic series of
* symbols for a given frame. We need to reset those features only once
* a frame (instead of every nth symbol):
* - DC-balance: used to ensure a better clock recovery from the data
* link (SDVO)
* - DisplayPort scrambling: used for EMI reduction
*/
if (need_stable_symbols) {
uint32_t tmp = I915_READ(PORT_DFT2_G4X);
tmp |= DC_BALANCE_RESET_VLV;
switch (pipe) {
case PIPE_A:
tmp |= PIPE_A_SCRAMBLE_RESET;
break;
case PIPE_B:
tmp |= PIPE_B_SCRAMBLE_RESET;
break;
case PIPE_C:
tmp |= PIPE_C_SCRAMBLE_RESET;
break;
default:
return -EINVAL;
}
I915_WRITE(PORT_DFT2_G4X, tmp);
}
return 0;
}
static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
enum pipe pipe,
enum intel_pipe_crc_source *source,
uint32_t *val)
{
struct drm_i915_private *dev_priv = dev->dev_private;
bool need_stable_symbols = false;
if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
if (ret)
return ret;
}
switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
break;
case INTEL_PIPE_CRC_SOURCE_TV:
if (!SUPPORTS_TV(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
break;
case INTEL_PIPE_CRC_SOURCE_DP_B:
if (!IS_G4X(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_DP_C:
if (!IS_G4X(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_DP_D:
if (!IS_G4X(dev))
return -EINVAL;
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
need_stable_symbols = true;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
/*
* When the pipe CRC tap point is after the transcoders we need
* to tweak symbol-level features to produce a deterministic series of
* symbols for a given frame. We need to reset those features only once
* a frame (instead of every nth symbol):
* - DC-balance: used to ensure a better clock recovery from the data
* link (SDVO)
* - DisplayPort scrambling: used for EMI reduction
*/
if (need_stable_symbols) {
uint32_t tmp = I915_READ(PORT_DFT2_G4X);
WARN_ON(!IS_G4X(dev));
I915_WRITE(PORT_DFT_I9XX,
I915_READ(PORT_DFT_I9XX) | DC_BALANCE_RESET);
if (pipe == PIPE_A)
tmp |= PIPE_A_SCRAMBLE_RESET;
else
tmp |= PIPE_B_SCRAMBLE_RESET;
I915_WRITE(PORT_DFT2_G4X, tmp);
}
return 0;
}
static void vlv_undo_pipe_scramble_reset(struct drm_device *dev,
enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t tmp = I915_READ(PORT_DFT2_G4X);
switch (pipe) {
case PIPE_A:
tmp &= ~PIPE_A_SCRAMBLE_RESET;
break;
case PIPE_B:
tmp &= ~PIPE_B_SCRAMBLE_RESET;
break;
case PIPE_C:
tmp &= ~PIPE_C_SCRAMBLE_RESET;
break;
default:
return;
}
if (!(tmp & PIPE_SCRAMBLE_RESET_MASK))
tmp &= ~DC_BALANCE_RESET_VLV;
I915_WRITE(PORT_DFT2_G4X, tmp);
}
static void g4x_undo_pipe_scramble_reset(struct drm_device *dev,
enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t tmp = I915_READ(PORT_DFT2_G4X);
if (pipe == PIPE_A)
tmp &= ~PIPE_A_SCRAMBLE_RESET;
else
tmp &= ~PIPE_B_SCRAMBLE_RESET;
I915_WRITE(PORT_DFT2_G4X, tmp);
if (!(tmp & PIPE_SCRAMBLE_RESET_MASK)) {
I915_WRITE(PORT_DFT_I9XX,
I915_READ(PORT_DFT_I9XX) & ~DC_BALANCE_RESET);
}
}
static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
uint32_t *val)
{
if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
*source = INTEL_PIPE_CRC_SOURCE_PIPE;
switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PLANE1:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
break;
case INTEL_PIPE_CRC_SOURCE_PLANE2:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
break;
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
return 0;
}
static void hsw_trans_edp_pipe_A_crc_wa(struct drm_device *dev, bool enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *crtc =
to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
struct intel_crtc_state *pipe_config;
struct drm_atomic_state *state;
int ret = 0;
drm_modeset_lock_all(dev);
state = drm_atomic_state_alloc(dev);
if (!state) {
ret = -ENOMEM;
goto out;
}
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(&crtc->base);
pipe_config = intel_atomic_get_crtc_state(state, crtc);
if (IS_ERR(pipe_config)) {
ret = PTR_ERR(pipe_config);
goto out;
}
pipe_config->pch_pfit.force_thru = enable;
if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
pipe_config->pch_pfit.enabled != enable)
pipe_config->base.connectors_changed = true;
ret = drm_atomic_commit(state);
out:
drm_modeset_unlock_all(dev);
WARN(ret, "Toggling workaround to %i returns %i\n", enable, ret);
if (ret)
drm_atomic_state_free(state);
}
static int ivb_pipe_crc_ctl_reg(struct drm_device *dev,
enum pipe pipe,
enum intel_pipe_crc_source *source,
uint32_t *val)
{
if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
*source = INTEL_PIPE_CRC_SOURCE_PF;
switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PLANE1:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
break;
case INTEL_PIPE_CRC_SOURCE_PLANE2:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
break;
case INTEL_PIPE_CRC_SOURCE_PF:
if (IS_HASWELL(dev) && pipe == PIPE_A)
hsw_trans_edp_pipe_A_crc_wa(dev, true);
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
break;
case INTEL_PIPE_CRC_SOURCE_NONE:
*val = 0;
break;
default:
return -EINVAL;
}
return 0;
}
static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
enum intel_pipe_crc_source source)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
struct intel_crtc *crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev,
pipe));
u32 val = 0; /* shut up gcc */
int ret;
if (pipe_crc->source == source)
return 0;
/* forbid changing the source without going back to 'none' */
if (pipe_crc->source && source)
return -EINVAL;
if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PIPE(pipe))) {
DRM_DEBUG_KMS("Trying to capture CRC while pipe is off\n");
return -EIO;
}
if (IS_GEN2(dev))
ret = i8xx_pipe_crc_ctl_reg(&source, &val);
else if (INTEL_INFO(dev)->gen < 5)
ret = i9xx_pipe_crc_ctl_reg(dev, pipe, &source, &val);
else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
ret = vlv_pipe_crc_ctl_reg(dev, pipe, &source, &val);
else if (IS_GEN5(dev) || IS_GEN6(dev))
ret = ilk_pipe_crc_ctl_reg(&source, &val);
else
ret = ivb_pipe_crc_ctl_reg(dev, pipe, &source, &val);
if (ret != 0)
return ret;
/* none -> real source transition */
if (source) {
struct intel_pipe_crc_entry *entries;
DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
pipe_name(pipe), pipe_crc_source_name(source));
entries = kcalloc(INTEL_PIPE_CRC_ENTRIES_NR,
sizeof(pipe_crc->entries[0]),
GFP_KERNEL);
if (!entries)
return -ENOMEM;
/*
* When IPS gets enabled, the pipe CRC changes. Since IPS gets
* enabled and disabled dynamically based on package C states,
* user space can't make reliable use of the CRCs, so let's just
* completely disable it.
*/
hsw_disable_ips(crtc);
spin_lock_irq(&pipe_crc->lock);
kfree(pipe_crc->entries);
pipe_crc->entries = entries;
pipe_crc->head = 0;
pipe_crc->tail = 0;
spin_unlock_irq(&pipe_crc->lock);
}
pipe_crc->source = source;
I915_WRITE(PIPE_CRC_CTL(pipe), val);
POSTING_READ(PIPE_CRC_CTL(pipe));
/* real source -> none transition */
if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
struct intel_pipe_crc_entry *entries;
struct intel_crtc *crtc =
to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
pipe_name(pipe));
drm_modeset_lock(&crtc->base.mutex, NULL);
if (crtc->base.state->active)
intel_wait_for_vblank(dev, pipe);
drm_modeset_unlock(&crtc->base.mutex);
spin_lock_irq(&pipe_crc->lock);
entries = pipe_crc->entries;
pipe_crc->entries = NULL;
pipe_crc->head = 0;
pipe_crc->tail = 0;
spin_unlock_irq(&pipe_crc->lock);
kfree(entries);
if (IS_G4X(dev))
g4x_undo_pipe_scramble_reset(dev, pipe);
else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
vlv_undo_pipe_scramble_reset(dev, pipe);
else if (IS_HASWELL(dev) && pipe == PIPE_A)
hsw_trans_edp_pipe_A_crc_wa(dev, false);
hsw_enable_ips(crtc);
}
return 0;
}
/*
* Parse pipe CRC command strings:
* command: wsp* object wsp+ name wsp+ source wsp*
* object: 'pipe'
* name: (A | B | C)
* source: (none | plane1 | plane2 | pf)
* wsp: (#0x20 | #0x9 | #0xA)+
*
* eg.:
* "pipe A plane1" -> Start CRC computations on plane1 of pipe A
* "pipe A none" -> Stop CRC
*/
static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
{
int n_words = 0;
while (*buf) {
char *end;
/* skip leading white space */
buf = skip_spaces(buf);
if (!*buf)
break; /* end of buffer */
/* find end of word */
for (end = buf; *end && !isspace(*end); end++)
;
if (n_words == max_words) {
DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
max_words);
return -EINVAL; /* ran out of words[] before bytes */
}
if (*end)
*end++ = '\0';
words[n_words++] = buf;
buf = end;
}
return n_words;
}
enum intel_pipe_crc_object {
PIPE_CRC_OBJECT_PIPE,
};
static const char * const pipe_crc_objects[] = {
"pipe",
};
static int
display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
{
int i;
for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
if (!strcmp(buf, pipe_crc_objects[i])) {
*o = i;
return 0;
}
return -EINVAL;
}
static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
{
const char name = buf[0];
if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
return -EINVAL;
*pipe = name - 'A';
return 0;
}
static int
display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
{
int i;
for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
if (!strcmp(buf, pipe_crc_sources[i])) {
*s = i;
return 0;
}
return -EINVAL;
}
static int display_crc_ctl_parse(struct drm_device *dev, char *buf, size_t len)
{
#define N_WORDS 3
int n_words;
char *words[N_WORDS];
enum pipe pipe;
enum intel_pipe_crc_object object;
enum intel_pipe_crc_source source;
n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
if (n_words != N_WORDS) {
DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
N_WORDS);
return -EINVAL;
}
if (display_crc_ctl_parse_object(words[0], &object) < 0) {
DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
return -EINVAL;
}
if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
return -EINVAL;
}
if (display_crc_ctl_parse_source(words[2], &source) < 0) {
DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
return -EINVAL;
}
return pipe_crc_set_source(dev, pipe, source);
}
static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_device *dev = m->private;
char *tmpbuf;
int ret;
if (len == 0)
return 0;
if (len > PAGE_SIZE - 1) {
DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
PAGE_SIZE);
return -E2BIG;
}
tmpbuf = kmalloc(len + 1, GFP_KERNEL);
if (!tmpbuf)
return -ENOMEM;
if (copy_from_user(tmpbuf, ubuf, len)) {
ret = -EFAULT;
goto out;
}
tmpbuf[len] = '\0';
ret = display_crc_ctl_parse(dev, tmpbuf, len);
out:
kfree(tmpbuf);
if (ret < 0)
return ret;
*offp += len;
return len;
}
static const struct file_operations i915_display_crc_ctl_fops = {
.owner = THIS_MODULE,
.open = display_crc_ctl_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = display_crc_ctl_write
};
static ssize_t i915_displayport_test_active_write(struct file *file,
const char __user *ubuf,
size_t len, loff_t *offp)
{
char *input_buffer;
int status = 0;
struct drm_device *dev;
struct drm_connector *connector;
struct list_head *connector_list;
struct intel_dp *intel_dp;
int val = 0;
dev = ((struct seq_file *)file->private_data)->private;
connector_list = &dev->mode_config.connector_list;
if (len == 0)
return 0;
input_buffer = kmalloc(len + 1, GFP_KERNEL);
if (!input_buffer)
return -ENOMEM;
if (copy_from_user(input_buffer, ubuf, len)) {
status = -EFAULT;
goto out;
}
input_buffer[len] = '\0';
DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
DRM_MODE_CONNECTOR_DisplayPort)
continue;
if (connector->status == connector_status_connected &&
connector->encoder != NULL) {
intel_dp = enc_to_intel_dp(connector->encoder);
status = kstrtoint(input_buffer, 10, &val);
if (status < 0)
goto out;
DRM_DEBUG_DRIVER("Got %d for test active\n", val);
/* To prevent erroneous activation of the compliance
* testing code, only accept an actual value of 1 here
*/
if (val == 1)
intel_dp->compliance_test_active = 1;
else
intel_dp->compliance_test_active = 0;
}
}
out:
kfree(input_buffer);
if (status < 0)
return status;
*offp += len;
return len;
}
static int i915_displayport_test_active_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_connector *connector;
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
DRM_MODE_CONNECTOR_DisplayPort)
continue;
if (connector->status == connector_status_connected &&
connector->encoder != NULL) {
intel_dp = enc_to_intel_dp(connector->encoder);
if (intel_dp->compliance_test_active)
seq_puts(m, "1");
else
seq_puts(m, "0");
} else
seq_puts(m, "0");
}
return 0;
}
static int i915_displayport_test_active_open(struct inode *inode,
struct file *file)
{
struct drm_device *dev = inode->i_private;
return single_open(file, i915_displayport_test_active_show, dev);
}
static const struct file_operations i915_displayport_test_active_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_active_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = i915_displayport_test_active_write
};
static int i915_displayport_test_data_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_connector *connector;
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
DRM_MODE_CONNECTOR_DisplayPort)
continue;
if (connector->status == connector_status_connected &&
connector->encoder != NULL) {
intel_dp = enc_to_intel_dp(connector->encoder);
seq_printf(m, "%lx", intel_dp->compliance_test_data);
} else
seq_puts(m, "0");
}
return 0;
}
static int i915_displayport_test_data_open(struct inode *inode,
struct file *file)
{
struct drm_device *dev = inode->i_private;
return single_open(file, i915_displayport_test_data_show, dev);
}
static const struct file_operations i915_displayport_test_data_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_data_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release
};
static int i915_displayport_test_type_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_connector *connector;
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
DRM_MODE_CONNECTOR_DisplayPort)
continue;
if (connector->status == connector_status_connected &&
connector->encoder != NULL) {
intel_dp = enc_to_intel_dp(connector->encoder);
seq_printf(m, "%02lx", intel_dp->compliance_test_type);
} else
seq_puts(m, "0");
}
return 0;
}
static int i915_displayport_test_type_open(struct inode *inode,
struct file *file)
{
struct drm_device *dev = inode->i_private;
return single_open(file, i915_displayport_test_type_show, dev);
}
static const struct file_operations i915_displayport_test_type_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_type_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release
};
static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
{
struct drm_device *dev = m->private;
int level;
int num_levels;
if (IS_CHERRYVIEW(dev))
num_levels = 3;
else if (IS_VALLEYVIEW(dev))
num_levels = 1;
else
num_levels = ilk_wm_max_level(dev) + 1;
drm_modeset_lock_all(dev);
for (level = 0; level < num_levels; level++) {
unsigned int latency = wm[level];
/*
* - WM1+ latency values in 0.5us units
* - latencies are in us on gen9/vlv/chv
*/
if (INTEL_INFO(dev)->gen >= 9 || IS_VALLEYVIEW(dev) ||
IS_CHERRYVIEW(dev))
latency *= 10;
else if (level > 0)
latency *= 5;
seq_printf(m, "WM%d %u (%u.%u usec)\n",
level, wm[level], latency / 10, latency % 10);
}
drm_modeset_unlock_all(dev);
}
static int pri_wm_latency_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
const uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.pri_latency;
wm_latency_show(m, latencies);
return 0;
}
static int spr_wm_latency_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
const uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.spr_latency;
wm_latency_show(m, latencies);
return 0;
}
static int cur_wm_latency_show(struct seq_file *m, void *data)
{
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
const uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.cur_latency;
wm_latency_show(m, latencies);
return 0;
}
static int pri_wm_latency_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
if (INTEL_INFO(dev)->gen < 5)
return -ENODEV;
return single_open(file, pri_wm_latency_show, dev);
}
static int spr_wm_latency_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
if (HAS_GMCH_DISPLAY(dev))
return -ENODEV;
return single_open(file, spr_wm_latency_show, dev);
}
static int cur_wm_latency_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
if (HAS_GMCH_DISPLAY(dev))
return -ENODEV;
return single_open(file, cur_wm_latency_show, dev);
}
static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp, uint16_t wm[8])
{
struct seq_file *m = file->private_data;
struct drm_device *dev = m->private;
uint16_t new[8] = { 0 };
int num_levels;
int level;
int ret;
char tmp[32];
if (IS_CHERRYVIEW(dev))
num_levels = 3;
else if (IS_VALLEYVIEW(dev))
num_levels = 1;
else
num_levels = ilk_wm_max_level(dev) + 1;
if (len >= sizeof(tmp))
return -EINVAL;
if (copy_from_user(tmp, ubuf, len))
return -EFAULT;
tmp[len] = '\0';
ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
&new[0], &new[1], &new[2], &new[3],
&new[4], &new[5], &new[6], &new[7]);
if (ret != num_levels)
return -EINVAL;
drm_modeset_lock_all(dev);
for (level = 0; level < num_levels; level++)
wm[level] = new[level];
drm_modeset_unlock_all(dev);
return len;
}
static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.pri_latency;
return wm_latency_write(file, ubuf, len, offp, latencies);
}
static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.spr_latency;
return wm_latency_write(file, ubuf, len, offp, latencies);
}
static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_device *dev = m->private;
struct drm_i915_private *dev_priv = dev->dev_private;
uint16_t *latencies;
if (INTEL_INFO(dev)->gen >= 9)
latencies = dev_priv->wm.skl_latency;
else
latencies = to_i915(dev)->wm.cur_latency;
return wm_latency_write(file, ubuf, len, offp, latencies);
}
static const struct file_operations i915_pri_wm_latency_fops = {
.owner = THIS_MODULE,
.open = pri_wm_latency_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = pri_wm_latency_write
};
static const struct file_operations i915_spr_wm_latency_fops = {
.owner = THIS_MODULE,
.open = spr_wm_latency_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = spr_wm_latency_write
};
static const struct file_operations i915_cur_wm_latency_fops = {
.owner = THIS_MODULE,
.open = cur_wm_latency_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = cur_wm_latency_write
};
static int
i915_wedged_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
*val = atomic_read(&dev_priv->gpu_error.reset_counter);
return 0;
}
static int
i915_wedged_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
/*
* There is no safeguard against this debugfs entry colliding
* with the hangcheck calling same i915_handle_error() in
* parallel, causing an explosion. For now we assume that the
* test harness is responsible enough not to inject gpu hangs
* while it is writing to 'i915_wedged'
*/
if (i915_reset_in_progress(&dev_priv->gpu_error))
return -EAGAIN;
intel_runtime_pm_get(dev_priv);
i915_handle_error(dev, val,
"Manually setting wedged to %llu", val);
intel_runtime_pm_put(dev_priv);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
i915_wedged_get, i915_wedged_set,
"%llu\n");
static int
i915_ring_stop_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
*val = dev_priv->gpu_error.stop_rings;
return 0;
}
static int
i915_ring_stop_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
dev_priv->gpu_error.stop_rings = val;
mutex_unlock(&dev->struct_mutex);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
i915_ring_stop_get, i915_ring_stop_set,
"0x%08llx\n");
static int
i915_ring_missed_irq_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
*val = dev_priv->gpu_error.missed_irq_rings;
return 0;
}
static int
i915_ring_missed_irq_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
/* Lock against concurrent debugfs callers */
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
dev_priv->gpu_error.missed_irq_rings = val;
mutex_unlock(&dev->struct_mutex);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
i915_ring_missed_irq_get, i915_ring_missed_irq_set,
"0x%08llx\n");
static int
i915_ring_test_irq_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
*val = dev_priv->gpu_error.test_irq_rings;
return 0;
}
static int
i915_ring_test_irq_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
/* Lock against concurrent debugfs callers */
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
dev_priv->gpu_error.test_irq_rings = val;
mutex_unlock(&dev->struct_mutex);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
i915_ring_test_irq_get, i915_ring_test_irq_set,
"0x%08llx\n");
#define DROP_UNBOUND 0x1
#define DROP_BOUND 0x2
#define DROP_RETIRE 0x4
#define DROP_ACTIVE 0x8
#define DROP_ALL (DROP_UNBOUND | \
DROP_BOUND | \
DROP_RETIRE | \
DROP_ACTIVE)
static int
i915_drop_caches_get(void *data, u64 *val)
{
*val = DROP_ALL;
return 0;
}
static int
i915_drop_caches_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
/* No need to check and wait for gpu resets, only libdrm auto-restarts
* on ioctls on -EAGAIN. */
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
if (val & DROP_ACTIVE) {
ret = i915_gpu_idle(dev);
if (ret)
goto unlock;
}
if (val & (DROP_RETIRE | DROP_ACTIVE))
i915_gem_retire_requests(dev);
if (val & DROP_BOUND)
i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
if (val & DROP_UNBOUND)
i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
i915_drop_caches_get, i915_drop_caches_set,
"0x%08llx\n");
static int
i915_max_freq_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
if (INTEL_INFO(dev)->gen < 6)
return -ENODEV;
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
if (ret)
return ret;
*val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
}
static int
i915_max_freq_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 hw_max, hw_min;
int ret;
if (INTEL_INFO(dev)->gen < 6)
return -ENODEV;
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
if (ret)
return ret;
/*
* Turbo will still be enabled, but won't go above the set value.
*/
val = intel_freq_opcode(dev_priv, val);
hw_max = dev_priv->rps.max_freq;
hw_min = dev_priv->rps.min_freq;
if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
return -EINVAL;
}
dev_priv->rps.max_freq_softlimit = val;
intel_set_rps(dev, val);
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
i915_max_freq_get, i915_max_freq_set,
"%llu\n");
static int
i915_min_freq_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
if (INTEL_INFO(dev)->gen < 6)
return -ENODEV;
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
if (ret)
return ret;
*val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
}
static int
i915_min_freq_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 hw_max, hw_min;
int ret;
if (INTEL_INFO(dev)->gen < 6)
return -ENODEV;
flush_delayed_work(&dev_priv->rps.delayed_resume_work);
DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
if (ret)
return ret;
/*
* Turbo will still be enabled, but won't go below the set value.
*/
val = intel_freq_opcode(dev_priv, val);
hw_max = dev_priv->rps.max_freq;
hw_min = dev_priv->rps.min_freq;
if (val < hw_min || val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
mutex_unlock(&dev_priv->rps.hw_lock);
return -EINVAL;
}
dev_priv->rps.min_freq_softlimit = val;
intel_set_rps(dev, val);
mutex_unlock(&dev_priv->rps.hw_lock);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
i915_min_freq_get, i915_min_freq_set,
"%llu\n");
static int
i915_cache_sharing_get(void *data, u64 *val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 snpcr;
int ret;
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
return -ENODEV;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev_priv->dev->struct_mutex);
*val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
return 0;
}
static int
i915_cache_sharing_set(void *data, u64 val)
{
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 snpcr;
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
return -ENODEV;
if (val > 3)
return -EINVAL;
intel_runtime_pm_get(dev_priv);
DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
/* Update the cache sharing policy here as well */
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
snpcr &= ~GEN6_MBC_SNPCR_MASK;
snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
intel_runtime_pm_put(dev_priv);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
i915_cache_sharing_get, i915_cache_sharing_set,
"%llu\n");
struct sseu_dev_status {
unsigned int slice_total;
unsigned int subslice_total;
unsigned int subslice_per_slice;
unsigned int eu_total;
unsigned int eu_per_subslice;
};
static void cherryview_sseu_device_status(struct drm_device *dev,
struct sseu_dev_status *stat)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int ss_max = 2;
int ss;
u32 sig1[ss_max], sig2[ss_max];
sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
for (ss = 0; ss < ss_max; ss++) {
unsigned int eu_cnt;
if (sig1[ss] & CHV_SS_PG_ENABLE)
/* skip disabled subslice */
continue;
stat->slice_total = 1;
stat->subslice_per_slice++;
eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
stat->eu_total += eu_cnt;
stat->eu_per_subslice = max(stat->eu_per_subslice, eu_cnt);
}
stat->subslice_total = stat->subslice_per_slice;
}
static void gen9_sseu_device_status(struct drm_device *dev,
struct sseu_dev_status *stat)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int s_max = 3, ss_max = 4;
int s, ss;
u32 s_reg[s_max], eu_reg[2*s_max], eu_mask[2];
/* BXT has a single slice and at most 3 subslices. */
if (IS_BROXTON(dev)) {
s_max = 1;
ss_max = 3;
}
for (s = 0; s < s_max; s++) {
s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
}
eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
GEN9_PGCTL_SSA_EU19_ACK |
GEN9_PGCTL_SSA_EU210_ACK |
GEN9_PGCTL_SSA_EU311_ACK;
eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
GEN9_PGCTL_SSB_EU19_ACK |
GEN9_PGCTL_SSB_EU210_ACK |
GEN9_PGCTL_SSB_EU311_ACK;
for (s = 0; s < s_max; s++) {
unsigned int ss_cnt = 0;
if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
/* skip disabled slice */
continue;
stat->slice_total++;
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
ss_cnt = INTEL_INFO(dev)->subslice_per_slice;
for (ss = 0; ss < ss_max; ss++) {
unsigned int eu_cnt;
if (IS_BROXTON(dev) &&
!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
/* skip disabled subslice */
continue;
if (IS_BROXTON(dev))
ss_cnt++;
eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
eu_mask[ss%2]);
stat->eu_total += eu_cnt;
stat->eu_per_subslice = max(stat->eu_per_subslice,
eu_cnt);
}
stat->subslice_total += ss_cnt;
stat->subslice_per_slice = max(stat->subslice_per_slice,
ss_cnt);
}
}
static void broadwell_sseu_device_status(struct drm_device *dev,
struct sseu_dev_status *stat)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int s;
u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
stat->slice_total = hweight32(slice_info & GEN8_LSLICESTAT_MASK);
if (stat->slice_total) {
stat->subslice_per_slice = INTEL_INFO(dev)->subslice_per_slice;
stat->subslice_total = stat->slice_total *
stat->subslice_per_slice;
stat->eu_per_subslice = INTEL_INFO(dev)->eu_per_subslice;
stat->eu_total = stat->eu_per_subslice * stat->subslice_total;
/* subtract fused off EU(s) from enabled slice(s) */
for (s = 0; s < stat->slice_total; s++) {
u8 subslice_7eu = INTEL_INFO(dev)->subslice_7eu[s];
stat->eu_total -= hweight8(subslice_7eu);
}
}
}
static int i915_sseu_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct sseu_dev_status stat;
if (INTEL_INFO(dev)->gen < 8)
return -ENODEV;
seq_puts(m, "SSEU Device Info\n");
seq_printf(m, " Available Slice Total: %u\n",
INTEL_INFO(dev)->slice_total);
seq_printf(m, " Available Subslice Total: %u\n",
INTEL_INFO(dev)->subslice_total);
seq_printf(m, " Available Subslice Per Slice: %u\n",
INTEL_INFO(dev)->subslice_per_slice);
seq_printf(m, " Available EU Total: %u\n",
INTEL_INFO(dev)->eu_total);
seq_printf(m, " Available EU Per Subslice: %u\n",
INTEL_INFO(dev)->eu_per_subslice);
seq_printf(m, " Has Slice Power Gating: %s\n",
yesno(INTEL_INFO(dev)->has_slice_pg));
seq_printf(m, " Has Subslice Power Gating: %s\n",
yesno(INTEL_INFO(dev)->has_subslice_pg));
seq_printf(m, " Has EU Power Gating: %s\n",
yesno(INTEL_INFO(dev)->has_eu_pg));
seq_puts(m, "SSEU Device Status\n");
memset(&stat, 0, sizeof(stat));
if (IS_CHERRYVIEW(dev)) {
cherryview_sseu_device_status(dev, &stat);
} else if (IS_BROADWELL(dev)) {
broadwell_sseu_device_status(dev, &stat);
} else if (INTEL_INFO(dev)->gen >= 9) {
gen9_sseu_device_status(dev, &stat);
}
seq_printf(m, " Enabled Slice Total: %u\n",
stat.slice_total);
seq_printf(m, " Enabled Subslice Total: %u\n",
stat.subslice_total);
seq_printf(m, " Enabled Subslice Per Slice: %u\n",
stat.subslice_per_slice);
seq_printf(m, " Enabled EU Total: %u\n",
stat.eu_total);
seq_printf(m, " Enabled EU Per Subslice: %u\n",
stat.eu_per_subslice);
return 0;
}
static int i915_forcewake_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
struct drm_i915_private *dev_priv = dev->dev_private;
if (INTEL_INFO(dev)->gen < 6)
return 0;
intel_runtime_pm_get(dev_priv);
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
return 0;
}
static int i915_forcewake_release(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
struct drm_i915_private *dev_priv = dev->dev_private;
if (INTEL_INFO(dev)->gen < 6)
return 0;
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
intel_runtime_pm_put(dev_priv);
return 0;
}
static const struct file_operations i915_forcewake_fops = {
.owner = THIS_MODULE,
.open = i915_forcewake_open,
.release = i915_forcewake_release,
};
static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file("i915_forcewake_user",
S_IRUSR,
root, dev,
&i915_forcewake_fops);
if (!ent)
return -ENOMEM;
return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
}
static int i915_debugfs_create(struct dentry *root,
struct drm_minor *minor,
const char *name,
const struct file_operations *fops)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file(name,
S_IRUGO | S_IWUSR,
root, dev,
fops);
if (!ent)
return -ENOMEM;
return drm_add_fake_info_node(minor, ent, fops);
}
static const struct drm_info_list i915_debugfs_list[] = {
{"i915_capabilities", i915_capabilities, 0},
{"i915_gem_objects", i915_gem_object_info, 0},
{"i915_gem_gtt", i915_gem_gtt_info, 0},
{"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
{"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
{"i915_gem_stolen", i915_gem_stolen_list_info },
{"i915_gem_pageflip", i915_gem_pageflip_info, 0},
{"i915_gem_request", i915_gem_request_info, 0},
{"i915_gem_seqno", i915_gem_seqno_info, 0},
{"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
{"i915_gem_interrupt", i915_interrupt_info, 0},
{"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
{"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
{"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
{"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
{"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
{"i915_guc_info", i915_guc_info, 0},
{"i915_guc_load_status", i915_guc_load_status_info, 0},
{"i915_guc_log_dump", i915_guc_log_dump, 0},
{"i915_frequency_info", i915_frequency_info, 0},
{"i915_hangcheck_info", i915_hangcheck_info, 0},
{"i915_drpc_info", i915_drpc_info, 0},
{"i915_emon_status", i915_emon_status, 0},
{"i915_ring_freq_table", i915_ring_freq_table, 0},
{"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
{"i915_fbc_status", i915_fbc_status, 0},
{"i915_ips_status", i915_ips_status, 0},
{"i915_sr_status", i915_sr_status, 0},
{"i915_opregion", i915_opregion, 0},
{"i915_vbt", i915_vbt, 0},
{"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
{"i915_context_status", i915_context_status, 0},
{"i915_dump_lrc", i915_dump_lrc, 0},
{"i915_execlists", i915_execlists, 0},
{"i915_forcewake_domains", i915_forcewake_domains, 0},
{"i915_swizzle_info", i915_swizzle_info, 0},
{"i915_ppgtt_info", i915_ppgtt_info, 0},
{"i915_llc", i915_llc, 0},
{"i915_edp_psr_status", i915_edp_psr_status, 0},
{"i915_sink_crc_eDP1", i915_sink_crc, 0},
{"i915_energy_uJ", i915_energy_uJ, 0},
{"i915_runtime_pm_status", i915_runtime_pm_status, 0},
{"i915_power_domain_info", i915_power_domain_info, 0},
{"i915_dmc_info", i915_dmc_info, 0},
{"i915_display_info", i915_display_info, 0},
{"i915_semaphore_status", i915_semaphore_status, 0},
{"i915_shared_dplls_info", i915_shared_dplls_info, 0},
{"i915_dp_mst_info", i915_dp_mst_info, 0},
{"i915_wa_registers", i915_wa_registers, 0},
{"i915_ddb_info", i915_ddb_info, 0},
{"i915_sseu_status", i915_sseu_status, 0},
{"i915_drrs_status", i915_drrs_status, 0},
{"i915_rps_boost_info", i915_rps_boost_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
static const struct i915_debugfs_files {
const char *name;
const struct file_operations *fops;
} i915_debugfs_files[] = {
{"i915_wedged", &i915_wedged_fops},
{"i915_max_freq", &i915_max_freq_fops},
{"i915_min_freq", &i915_min_freq_fops},
{"i915_cache_sharing", &i915_cache_sharing_fops},
{"i915_ring_stop", &i915_ring_stop_fops},
{"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
{"i915_ring_test_irq", &i915_ring_test_irq_fops},
{"i915_gem_drop_caches", &i915_drop_caches_fops},
{"i915_error_state", &i915_error_state_fops},
{"i915_next_seqno", &i915_next_seqno_fops},
{"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
{"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
{"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
{"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
{"i915_fbc_false_color", &i915_fbc_fc_fops},
{"i915_dp_test_data", &i915_displayport_test_data_fops},
{"i915_dp_test_type", &i915_displayport_test_type_fops},
{"i915_dp_test_active", &i915_displayport_test_active_fops}
};
void intel_display_crc_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
enum pipe pipe;
for_each_pipe(dev_priv, pipe) {
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
pipe_crc->opened = false;
spin_lock_init(&pipe_crc->lock);
init_waitqueue_head(&pipe_crc->wq);
}
}
int i915_debugfs_init(struct drm_minor *minor)
{
int ret, i;
ret = i915_forcewake_create(minor->debugfs_root, minor);
if (ret)
return ret;
for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
if (ret)
return ret;
}
for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
ret = i915_debugfs_create(minor->debugfs_root, minor,
i915_debugfs_files[i].name,
i915_debugfs_files[i].fops);
if (ret)
return ret;
}
return drm_debugfs_create_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
}
void i915_debugfs_cleanup(struct drm_minor *minor)
{
int i;
drm_debugfs_remove_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
1, minor);
for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
struct drm_info_list *info_list =
(struct drm_info_list *)&i915_pipe_crc_data[i];
drm_debugfs_remove_files(info_list, 1, minor);
}
for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
struct drm_info_list *info_list =
(struct drm_info_list *) i915_debugfs_files[i].fops;
drm_debugfs_remove_files(info_list, 1, minor);
}
}
struct dpcd_block {
/* DPCD dump start address. */
unsigned int offset;
/* DPCD dump end address, inclusive. If unset, .size will be used. */
unsigned int end;
/* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
size_t size;
/* Only valid for eDP. */
bool edp;
};
static const struct dpcd_block i915_dpcd_debug[] = {
{ .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
{ .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
{ .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
{ .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
{ .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
{ .offset = DP_SET_POWER },
{ .offset = DP_EDP_DPCD_REV },
{ .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
{ .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
{ .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
};
static int i915_dpcd_show(struct seq_file *m, void *data)
{
struct drm_connector *connector = m->private;
struct intel_dp *intel_dp =
enc_to_intel_dp(&intel_attached_encoder(connector)->base);
uint8_t buf[16];
ssize_t err;
int i;
if (connector->status != connector_status_connected)
return -ENODEV;
for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
const struct dpcd_block *b = &i915_dpcd_debug[i];
size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
if (b->edp &&
connector->connector_type != DRM_MODE_CONNECTOR_eDP)
continue;
/* low tech for now */
if (WARN_ON(size > sizeof(buf)))
continue;
err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
if (err <= 0) {
DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n",
size, b->offset, err);
continue;
}
seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf);
}
return 0;
}
static int i915_dpcd_open(struct inode *inode, struct file *file)
{
return single_open(file, i915_dpcd_show, inode->i_private);
}
static const struct file_operations i915_dpcd_fops = {
.owner = THIS_MODULE,
.open = i915_dpcd_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/**
* i915_debugfs_connector_add - add i915 specific connector debugfs files
* @connector: pointer to a registered drm_connector
*
* Cleanup will be done by drm_connector_unregister() through a call to
* drm_debugfs_connector_remove().
*
* Returns 0 on success, negative error codes on error.
*/
int i915_debugfs_connector_add(struct drm_connector *connector)
{
struct dentry *root = connector->debugfs_entry;
/* The connector must have been registered beforehands. */
if (!root)
return -ENODEV;
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP)
debugfs_create_file("i915_dpcd", S_IRUGO, root, connector,
&i915_dpcd_fops);
return 0;
}
View git blame Copy permalink