![Ben Widawsky](/assets/img/avatar_default.png)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1056 lines
28 KiB
C
1056 lines
28 KiB
C
/*
|
|
* Copyright (c) 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>
|
|
* Mika Kuoppala <mika.kuoppala@intel.com>
|
|
*
|
|
*/
|
|
|
|
#include <generated/utsrelease.h>
|
|
#include "i915_drv.h"
|
|
|
|
static const char *yesno(int v)
|
|
{
|
|
return v ? "yes" : "no";
|
|
}
|
|
|
|
static const char *ring_str(int ring)
|
|
{
|
|
switch (ring) {
|
|
case RCS: return "render";
|
|
case VCS: return "bsd";
|
|
case BCS: return "blt";
|
|
case VECS: return "vebox";
|
|
default: return "";
|
|
}
|
|
}
|
|
|
|
static const char *pin_flag(int pinned)
|
|
{
|
|
if (pinned > 0)
|
|
return " P";
|
|
else if (pinned < 0)
|
|
return " p";
|
|
else
|
|
return "";
|
|
}
|
|
|
|
static const char *tiling_flag(int tiling)
|
|
{
|
|
switch (tiling) {
|
|
default:
|
|
case I915_TILING_NONE: return "";
|
|
case I915_TILING_X: return " X";
|
|
case I915_TILING_Y: return " Y";
|
|
}
|
|
}
|
|
|
|
static const char *dirty_flag(int dirty)
|
|
{
|
|
return dirty ? " dirty" : "";
|
|
}
|
|
|
|
static const char *purgeable_flag(int purgeable)
|
|
{
|
|
return purgeable ? " purgeable" : "";
|
|
}
|
|
|
|
static bool __i915_error_ok(struct drm_i915_error_state_buf *e)
|
|
{
|
|
|
|
if (!e->err && WARN(e->bytes > (e->size - 1), "overflow")) {
|
|
e->err = -ENOSPC;
|
|
return false;
|
|
}
|
|
|
|
if (e->bytes == e->size - 1 || e->err)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool __i915_error_seek(struct drm_i915_error_state_buf *e,
|
|
unsigned len)
|
|
{
|
|
if (e->pos + len <= e->start) {
|
|
e->pos += len;
|
|
return false;
|
|
}
|
|
|
|
/* First vsnprintf needs to fit in its entirety for memmove */
|
|
if (len >= e->size) {
|
|
e->err = -EIO;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void __i915_error_advance(struct drm_i915_error_state_buf *e,
|
|
unsigned len)
|
|
{
|
|
/* If this is first printf in this window, adjust it so that
|
|
* start position matches start of the buffer
|
|
*/
|
|
|
|
if (e->pos < e->start) {
|
|
const size_t off = e->start - e->pos;
|
|
|
|
/* Should not happen but be paranoid */
|
|
if (off > len || e->bytes) {
|
|
e->err = -EIO;
|
|
return;
|
|
}
|
|
|
|
memmove(e->buf, e->buf + off, len - off);
|
|
e->bytes = len - off;
|
|
e->pos = e->start;
|
|
return;
|
|
}
|
|
|
|
e->bytes += len;
|
|
e->pos += len;
|
|
}
|
|
|
|
static void i915_error_vprintf(struct drm_i915_error_state_buf *e,
|
|
const char *f, va_list args)
|
|
{
|
|
unsigned len;
|
|
|
|
if (!__i915_error_ok(e))
|
|
return;
|
|
|
|
/* Seek the first printf which is hits start position */
|
|
if (e->pos < e->start) {
|
|
va_list tmp;
|
|
|
|
va_copy(tmp, args);
|
|
if (!__i915_error_seek(e, vsnprintf(NULL, 0, f, tmp)))
|
|
return;
|
|
}
|
|
|
|
len = vsnprintf(e->buf + e->bytes, e->size - e->bytes, f, args);
|
|
if (len >= e->size - e->bytes)
|
|
len = e->size - e->bytes - 1;
|
|
|
|
__i915_error_advance(e, len);
|
|
}
|
|
|
|
static void i915_error_puts(struct drm_i915_error_state_buf *e,
|
|
const char *str)
|
|
{
|
|
unsigned len;
|
|
|
|
if (!__i915_error_ok(e))
|
|
return;
|
|
|
|
len = strlen(str);
|
|
|
|
/* Seek the first printf which is hits start position */
|
|
if (e->pos < e->start) {
|
|
if (!__i915_error_seek(e, len))
|
|
return;
|
|
}
|
|
|
|
if (len >= e->size - e->bytes)
|
|
len = e->size - e->bytes - 1;
|
|
memcpy(e->buf + e->bytes, str, len);
|
|
|
|
__i915_error_advance(e, len);
|
|
}
|
|
|
|
#define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
|
|
#define err_puts(e, s) i915_error_puts(e, s)
|
|
|
|
static void print_error_buffers(struct drm_i915_error_state_buf *m,
|
|
const char *name,
|
|
struct drm_i915_error_buffer *err,
|
|
int count)
|
|
{
|
|
err_printf(m, "%s [%d]:\n", name, count);
|
|
|
|
while (count--) {
|
|
err_printf(m, " %08x %8u %02x %02x %x %x",
|
|
err->gtt_offset,
|
|
err->size,
|
|
err->read_domains,
|
|
err->write_domain,
|
|
err->rseqno, err->wseqno);
|
|
err_puts(m, pin_flag(err->pinned));
|
|
err_puts(m, tiling_flag(err->tiling));
|
|
err_puts(m, dirty_flag(err->dirty));
|
|
err_puts(m, purgeable_flag(err->purgeable));
|
|
err_puts(m, err->ring != -1 ? " " : "");
|
|
err_puts(m, ring_str(err->ring));
|
|
err_puts(m, i915_cache_level_str(err->cache_level));
|
|
|
|
if (err->name)
|
|
err_printf(m, " (name: %d)", err->name);
|
|
if (err->fence_reg != I915_FENCE_REG_NONE)
|
|
err_printf(m, " (fence: %d)", err->fence_reg);
|
|
|
|
err_puts(m, "\n");
|
|
err++;
|
|
}
|
|
}
|
|
|
|
static const char *hangcheck_action_to_str(enum intel_ring_hangcheck_action a)
|
|
{
|
|
switch (a) {
|
|
case HANGCHECK_IDLE:
|
|
return "idle";
|
|
case HANGCHECK_WAIT:
|
|
return "wait";
|
|
case HANGCHECK_ACTIVE:
|
|
return "active";
|
|
case HANGCHECK_KICK:
|
|
return "kick";
|
|
case HANGCHECK_HUNG:
|
|
return "hung";
|
|
}
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
static void i915_ring_error_state(struct drm_i915_error_state_buf *m,
|
|
struct drm_device *dev,
|
|
struct drm_i915_error_state *error,
|
|
unsigned ring)
|
|
{
|
|
BUG_ON(ring >= I915_NUM_RINGS); /* shut up confused gcc */
|
|
err_printf(m, "%s command stream:\n", ring_str(ring));
|
|
err_printf(m, " HEAD: 0x%08x\n", error->head[ring]);
|
|
err_printf(m, " TAIL: 0x%08x\n", error->tail[ring]);
|
|
err_printf(m, " CTL: 0x%08x\n", error->ctl[ring]);
|
|
err_printf(m, " ACTHD: 0x%08x\n", error->acthd[ring]);
|
|
err_printf(m, " IPEIR: 0x%08x\n", error->ipeir[ring]);
|
|
err_printf(m, " IPEHR: 0x%08x\n", error->ipehr[ring]);
|
|
err_printf(m, " INSTDONE: 0x%08x\n", error->instdone[ring]);
|
|
if (ring == RCS && INTEL_INFO(dev)->gen >= 4)
|
|
err_printf(m, " BBADDR: 0x%08llx\n", error->bbaddr);
|
|
if (INTEL_INFO(dev)->gen >= 4)
|
|
err_printf(m, " BB_STATE: 0x%08x\n", error->bbstate[ring]);
|
|
if (INTEL_INFO(dev)->gen >= 4)
|
|
err_printf(m, " INSTPS: 0x%08x\n", error->instps[ring]);
|
|
err_printf(m, " INSTPM: 0x%08x\n", error->instpm[ring]);
|
|
err_printf(m, " FADDR: 0x%08x\n", error->faddr[ring]);
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
err_printf(m, " RC PSMI: 0x%08x\n", error->rc_psmi[ring]);
|
|
err_printf(m, " FAULT_REG: 0x%08x\n", error->fault_reg[ring]);
|
|
err_printf(m, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
|
|
error->semaphore_mboxes[ring][0],
|
|
error->semaphore_seqno[ring][0]);
|
|
err_printf(m, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
|
|
error->semaphore_mboxes[ring][1],
|
|
error->semaphore_seqno[ring][1]);
|
|
if (HAS_VEBOX(dev)) {
|
|
err_printf(m, " SYNC_2: 0x%08x [last synced 0x%08x]\n",
|
|
error->semaphore_mboxes[ring][2],
|
|
error->semaphore_seqno[ring][2]);
|
|
}
|
|
}
|
|
err_printf(m, " seqno: 0x%08x\n", error->seqno[ring]);
|
|
err_printf(m, " waiting: %s\n", yesno(error->waiting[ring]));
|
|
err_printf(m, " ring->head: 0x%08x\n", error->cpu_ring_head[ring]);
|
|
err_printf(m, " ring->tail: 0x%08x\n", error->cpu_ring_tail[ring]);
|
|
err_printf(m, " hangcheck: %s [%d]\n",
|
|
hangcheck_action_to_str(error->hangcheck_action[ring]),
|
|
error->hangcheck_score[ring]);
|
|
}
|
|
|
|
void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, f);
|
|
i915_error_vprintf(e, f, args);
|
|
va_end(args);
|
|
}
|
|
|
|
int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
|
|
const struct i915_error_state_file_priv *error_priv)
|
|
{
|
|
struct drm_device *dev = error_priv->dev;
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
struct drm_i915_error_state *error = error_priv->error;
|
|
struct intel_ring_buffer *ring;
|
|
int i, j, page, offset, elt;
|
|
|
|
if (!error) {
|
|
err_printf(m, "no error state collected\n");
|
|
goto out;
|
|
}
|
|
|
|
err_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
|
|
error->time.tv_usec);
|
|
err_printf(m, "Kernel: " UTS_RELEASE "\n");
|
|
err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device);
|
|
err_printf(m, "EIR: 0x%08x\n", error->eir);
|
|
err_printf(m, "IER: 0x%08x\n", error->ier);
|
|
err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
|
|
err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake);
|
|
err_printf(m, "DERRMR: 0x%08x\n", error->derrmr);
|
|
err_printf(m, "CCID: 0x%08x\n", error->ccid);
|
|
err_printf(m, "Missed interrupts: 0x%08lx\n", dev_priv->gpu_error.missed_irq_rings);
|
|
|
|
for (i = 0; i < dev_priv->num_fence_regs; i++)
|
|
err_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(error->extra_instdone); i++)
|
|
err_printf(m, " INSTDONE_%d: 0x%08x\n", i,
|
|
error->extra_instdone[i]);
|
|
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
err_printf(m, "ERROR: 0x%08x\n", error->error);
|
|
err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
|
|
}
|
|
|
|
if (INTEL_INFO(dev)->gen == 7)
|
|
err_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
|
|
|
|
for_each_ring(ring, dev_priv, i)
|
|
i915_ring_error_state(m, dev, error, i);
|
|
|
|
if (error->active_bo)
|
|
print_error_buffers(m, "Active",
|
|
error->active_bo[0],
|
|
error->active_bo_count[0]);
|
|
|
|
if (error->pinned_bo)
|
|
print_error_buffers(m, "Pinned",
|
|
error->pinned_bo[0],
|
|
error->pinned_bo_count[0]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(error->ring); i++) {
|
|
struct drm_i915_error_object *obj;
|
|
|
|
if ((obj = error->ring[i].batchbuffer)) {
|
|
err_printf(m, "%s --- gtt_offset = 0x%08x\n",
|
|
dev_priv->ring[i].name,
|
|
obj->gtt_offset);
|
|
offset = 0;
|
|
for (page = 0; page < obj->page_count; page++) {
|
|
for (elt = 0; elt < PAGE_SIZE/4; elt++) {
|
|
err_printf(m, "%08x : %08x\n", offset,
|
|
obj->pages[page][elt]);
|
|
offset += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error->ring[i].num_requests) {
|
|
err_printf(m, "%s --- %d requests\n",
|
|
dev_priv->ring[i].name,
|
|
error->ring[i].num_requests);
|
|
for (j = 0; j < error->ring[i].num_requests; j++) {
|
|
err_printf(m, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
|
|
error->ring[i].requests[j].seqno,
|
|
error->ring[i].requests[j].jiffies,
|
|
error->ring[i].requests[j].tail);
|
|
}
|
|
}
|
|
|
|
if ((obj = error->ring[i].ringbuffer)) {
|
|
err_printf(m, "%s --- ringbuffer = 0x%08x\n",
|
|
dev_priv->ring[i].name,
|
|
obj->gtt_offset);
|
|
offset = 0;
|
|
for (page = 0; page < obj->page_count; page++) {
|
|
for (elt = 0; elt < PAGE_SIZE/4; elt++) {
|
|
err_printf(m, "%08x : %08x\n",
|
|
offset,
|
|
obj->pages[page][elt]);
|
|
offset += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
obj = error->ring[i].ctx;
|
|
if (obj) {
|
|
err_printf(m, "%s --- HW Context = 0x%08x\n",
|
|
dev_priv->ring[i].name,
|
|
obj->gtt_offset);
|
|
offset = 0;
|
|
for (elt = 0; elt < PAGE_SIZE/16; elt += 4) {
|
|
err_printf(m, "[%04x] %08x %08x %08x %08x\n",
|
|
offset,
|
|
obj->pages[0][elt],
|
|
obj->pages[0][elt+1],
|
|
obj->pages[0][elt+2],
|
|
obj->pages[0][elt+3]);
|
|
offset += 16;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error->overlay)
|
|
intel_overlay_print_error_state(m, error->overlay);
|
|
|
|
if (error->display)
|
|
intel_display_print_error_state(m, dev, error->display);
|
|
|
|
out:
|
|
if (m->bytes == 0 && m->err)
|
|
return m->err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int i915_error_state_buf_init(struct drm_i915_error_state_buf *ebuf,
|
|
size_t count, loff_t pos)
|
|
{
|
|
memset(ebuf, 0, sizeof(*ebuf));
|
|
|
|
/* We need to have enough room to store any i915_error_state printf
|
|
* so that we can move it to start position.
|
|
*/
|
|
ebuf->size = count + 1 > PAGE_SIZE ? count + 1 : PAGE_SIZE;
|
|
ebuf->buf = kmalloc(ebuf->size,
|
|
GFP_TEMPORARY | __GFP_NORETRY | __GFP_NOWARN);
|
|
|
|
if (ebuf->buf == NULL) {
|
|
ebuf->size = PAGE_SIZE;
|
|
ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY);
|
|
}
|
|
|
|
if (ebuf->buf == NULL) {
|
|
ebuf->size = 128;
|
|
ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY);
|
|
}
|
|
|
|
if (ebuf->buf == NULL)
|
|
return -ENOMEM;
|
|
|
|
ebuf->start = pos;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void i915_error_object_free(struct drm_i915_error_object *obj)
|
|
{
|
|
int page;
|
|
|
|
if (obj == NULL)
|
|
return;
|
|
|
|
for (page = 0; page < obj->page_count; page++)
|
|
kfree(obj->pages[page]);
|
|
|
|
kfree(obj);
|
|
}
|
|
|
|
static void i915_error_state_free(struct kref *error_ref)
|
|
{
|
|
struct drm_i915_error_state *error = container_of(error_ref,
|
|
typeof(*error), ref);
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(error->ring); i++) {
|
|
i915_error_object_free(error->ring[i].batchbuffer);
|
|
i915_error_object_free(error->ring[i].ringbuffer);
|
|
i915_error_object_free(error->ring[i].ctx);
|
|
kfree(error->ring[i].requests);
|
|
}
|
|
|
|
kfree(error->active_bo);
|
|
kfree(error->overlay);
|
|
kfree(error->display);
|
|
kfree(error);
|
|
}
|
|
|
|
static struct drm_i915_error_object *
|
|
i915_error_object_create_sized(struct drm_i915_private *dev_priv,
|
|
struct drm_i915_gem_object *src,
|
|
const int num_pages)
|
|
{
|
|
struct drm_i915_error_object *dst;
|
|
int i;
|
|
u32 reloc_offset;
|
|
|
|
if (src == NULL || src->pages == NULL)
|
|
return NULL;
|
|
|
|
dst = kmalloc(sizeof(*dst) + num_pages * sizeof(u32 *), GFP_ATOMIC);
|
|
if (dst == NULL)
|
|
return NULL;
|
|
|
|
reloc_offset = dst->gtt_offset = i915_gem_obj_ggtt_offset(src);
|
|
for (i = 0; i < num_pages; i++) {
|
|
unsigned long flags;
|
|
void *d;
|
|
|
|
d = kmalloc(PAGE_SIZE, GFP_ATOMIC);
|
|
if (d == NULL)
|
|
goto unwind;
|
|
|
|
local_irq_save(flags);
|
|
if (reloc_offset < dev_priv->gtt.mappable_end &&
|
|
src->has_global_gtt_mapping) {
|
|
void __iomem *s;
|
|
|
|
/* Simply ignore tiling or any overlapping fence.
|
|
* It's part of the error state, and this hopefully
|
|
* captures what the GPU read.
|
|
*/
|
|
|
|
s = io_mapping_map_atomic_wc(dev_priv->gtt.mappable,
|
|
reloc_offset);
|
|
memcpy_fromio(d, s, PAGE_SIZE);
|
|
io_mapping_unmap_atomic(s);
|
|
} else if (src->stolen) {
|
|
unsigned long offset;
|
|
|
|
offset = dev_priv->mm.stolen_base;
|
|
offset += src->stolen->start;
|
|
offset += i << PAGE_SHIFT;
|
|
|
|
memcpy_fromio(d, (void __iomem *) offset, PAGE_SIZE);
|
|
} else {
|
|
struct page *page;
|
|
void *s;
|
|
|
|
page = i915_gem_object_get_page(src, i);
|
|
|
|
drm_clflush_pages(&page, 1);
|
|
|
|
s = kmap_atomic(page);
|
|
memcpy(d, s, PAGE_SIZE);
|
|
kunmap_atomic(s);
|
|
|
|
drm_clflush_pages(&page, 1);
|
|
}
|
|
local_irq_restore(flags);
|
|
|
|
dst->pages[i] = d;
|
|
|
|
reloc_offset += PAGE_SIZE;
|
|
}
|
|
dst->page_count = num_pages;
|
|
|
|
return dst;
|
|
|
|
unwind:
|
|
while (i--)
|
|
kfree(dst->pages[i]);
|
|
kfree(dst);
|
|
return NULL;
|
|
}
|
|
#define i915_error_object_create(dev_priv, src) \
|
|
i915_error_object_create_sized((dev_priv), (src), \
|
|
(src)->base.size>>PAGE_SHIFT)
|
|
|
|
static void capture_bo(struct drm_i915_error_buffer *err,
|
|
struct drm_i915_gem_object *obj)
|
|
{
|
|
err->size = obj->base.size;
|
|
err->name = obj->base.name;
|
|
err->rseqno = obj->last_read_seqno;
|
|
err->wseqno = obj->last_write_seqno;
|
|
err->gtt_offset = i915_gem_obj_ggtt_offset(obj);
|
|
err->read_domains = obj->base.read_domains;
|
|
err->write_domain = obj->base.write_domain;
|
|
err->fence_reg = obj->fence_reg;
|
|
err->pinned = 0;
|
|
if (obj->pin_count > 0)
|
|
err->pinned = 1;
|
|
if (obj->user_pin_count > 0)
|
|
err->pinned = -1;
|
|
err->tiling = obj->tiling_mode;
|
|
err->dirty = obj->dirty;
|
|
err->purgeable = obj->madv != I915_MADV_WILLNEED;
|
|
err->ring = obj->ring ? obj->ring->id : -1;
|
|
err->cache_level = obj->cache_level;
|
|
}
|
|
|
|
static u32 capture_active_bo(struct drm_i915_error_buffer *err,
|
|
int count, struct list_head *head)
|
|
{
|
|
struct i915_vma *vma;
|
|
int i = 0;
|
|
|
|
list_for_each_entry(vma, head, mm_list) {
|
|
capture_bo(err++, vma->obj);
|
|
if (++i == count)
|
|
break;
|
|
}
|
|
|
|
return i;
|
|
}
|
|
|
|
static u32 capture_pinned_bo(struct drm_i915_error_buffer *err,
|
|
int count, struct list_head *head)
|
|
{
|
|
struct drm_i915_gem_object *obj;
|
|
int i = 0;
|
|
|
|
list_for_each_entry(obj, head, global_list) {
|
|
if (obj->pin_count == 0)
|
|
continue;
|
|
|
|
capture_bo(err++, obj);
|
|
if (++i == count)
|
|
break;
|
|
}
|
|
|
|
return i;
|
|
}
|
|
|
|
static void i915_gem_record_fences(struct drm_device *dev,
|
|
struct drm_i915_error_state *error)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
int i;
|
|
|
|
/* Fences */
|
|
switch (INTEL_INFO(dev)->gen) {
|
|
case 8:
|
|
case 7:
|
|
case 6:
|
|
for (i = 0; i < dev_priv->num_fence_regs; i++)
|
|
error->fence[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8));
|
|
break;
|
|
case 5:
|
|
case 4:
|
|
for (i = 0; i < 16; i++)
|
|
error->fence[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
|
|
break;
|
|
case 3:
|
|
if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
|
|
for (i = 0; i < 8; i++)
|
|
error->fence[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
|
|
case 2:
|
|
for (i = 0; i < 8; i++)
|
|
error->fence[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
static struct drm_i915_error_object *
|
|
i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
|
|
struct intel_ring_buffer *ring)
|
|
{
|
|
struct i915_address_space *vm;
|
|
struct i915_vma *vma;
|
|
struct drm_i915_gem_object *obj;
|
|
u32 seqno;
|
|
|
|
if (!ring->get_seqno)
|
|
return NULL;
|
|
|
|
if (HAS_BROKEN_CS_TLB(dev_priv->dev)) {
|
|
u32 acthd = I915_READ(ACTHD);
|
|
|
|
if (WARN_ON(ring->id != RCS))
|
|
return NULL;
|
|
|
|
obj = ring->scratch.obj;
|
|
if (acthd >= i915_gem_obj_ggtt_offset(obj) &&
|
|
acthd < i915_gem_obj_ggtt_offset(obj) + obj->base.size)
|
|
return i915_error_object_create(dev_priv, obj);
|
|
}
|
|
|
|
seqno = ring->get_seqno(ring, false);
|
|
list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
|
|
list_for_each_entry(vma, &vm->active_list, mm_list) {
|
|
obj = vma->obj;
|
|
if (obj->ring != ring)
|
|
continue;
|
|
|
|
if (i915_seqno_passed(seqno, obj->last_read_seqno))
|
|
continue;
|
|
|
|
if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0)
|
|
continue;
|
|
|
|
/* We need to copy these to an anonymous buffer as the simplest
|
|
* method to avoid being overwritten by userspace.
|
|
*/
|
|
return i915_error_object_create(dev_priv, obj);
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void i915_record_ring_state(struct drm_device *dev,
|
|
struct drm_i915_error_state *error,
|
|
struct intel_ring_buffer *ring)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
error->rc_psmi[ring->id] = I915_READ(ring->mmio_base + 0x50);
|
|
error->fault_reg[ring->id] = I915_READ(RING_FAULT_REG(ring));
|
|
error->semaphore_mboxes[ring->id][0]
|
|
= I915_READ(RING_SYNC_0(ring->mmio_base));
|
|
error->semaphore_mboxes[ring->id][1]
|
|
= I915_READ(RING_SYNC_1(ring->mmio_base));
|
|
error->semaphore_seqno[ring->id][0] = ring->sync_seqno[0];
|
|
error->semaphore_seqno[ring->id][1] = ring->sync_seqno[1];
|
|
}
|
|
|
|
if (HAS_VEBOX(dev)) {
|
|
error->semaphore_mboxes[ring->id][2] =
|
|
I915_READ(RING_SYNC_2(ring->mmio_base));
|
|
error->semaphore_seqno[ring->id][2] = ring->sync_seqno[2];
|
|
}
|
|
|
|
if (INTEL_INFO(dev)->gen >= 4) {
|
|
error->faddr[ring->id] = I915_READ(RING_DMA_FADD(ring->mmio_base));
|
|
error->ipeir[ring->id] = I915_READ(RING_IPEIR(ring->mmio_base));
|
|
error->ipehr[ring->id] = I915_READ(RING_IPEHR(ring->mmio_base));
|
|
error->instdone[ring->id] = I915_READ(RING_INSTDONE(ring->mmio_base));
|
|
error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base));
|
|
if (ring->id == RCS)
|
|
error->bbaddr = I915_READ64(BB_ADDR);
|
|
error->bbstate[ring->id] = I915_READ(RING_BBSTATE(ring->mmio_base));
|
|
} else {
|
|
error->faddr[ring->id] = I915_READ(DMA_FADD_I8XX);
|
|
error->ipeir[ring->id] = I915_READ(IPEIR);
|
|
error->ipehr[ring->id] = I915_READ(IPEHR);
|
|
error->instdone[ring->id] = I915_READ(INSTDONE);
|
|
}
|
|
|
|
error->waiting[ring->id] = waitqueue_active(&ring->irq_queue);
|
|
error->instpm[ring->id] = I915_READ(RING_INSTPM(ring->mmio_base));
|
|
error->seqno[ring->id] = ring->get_seqno(ring, false);
|
|
error->acthd[ring->id] = intel_ring_get_active_head(ring);
|
|
error->head[ring->id] = I915_READ_HEAD(ring);
|
|
error->tail[ring->id] = I915_READ_TAIL(ring);
|
|
error->ctl[ring->id] = I915_READ_CTL(ring);
|
|
|
|
error->cpu_ring_head[ring->id] = ring->head;
|
|
error->cpu_ring_tail[ring->id] = ring->tail;
|
|
|
|
error->hangcheck_score[ring->id] = ring->hangcheck.score;
|
|
error->hangcheck_action[ring->id] = ring->hangcheck.action;
|
|
}
|
|
|
|
|
|
static void i915_gem_record_active_context(struct intel_ring_buffer *ring,
|
|
struct drm_i915_error_state *error,
|
|
struct drm_i915_error_ring *ering)
|
|
{
|
|
struct drm_i915_private *dev_priv = ring->dev->dev_private;
|
|
struct drm_i915_gem_object *obj;
|
|
|
|
/* Currently render ring is the only HW context user */
|
|
if (ring->id != RCS || !error->ccid)
|
|
return;
|
|
|
|
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
|
|
if ((error->ccid & PAGE_MASK) == i915_gem_obj_ggtt_offset(obj)) {
|
|
ering->ctx = i915_error_object_create_sized(dev_priv,
|
|
obj, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void i915_gem_record_rings(struct drm_device *dev,
|
|
struct drm_i915_error_state *error)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_ring_buffer *ring;
|
|
struct drm_i915_gem_request *request;
|
|
int i, count;
|
|
|
|
for_each_ring(ring, dev_priv, i) {
|
|
i915_record_ring_state(dev, error, ring);
|
|
|
|
error->ring[i].batchbuffer =
|
|
i915_error_first_batchbuffer(dev_priv, ring);
|
|
|
|
error->ring[i].ringbuffer =
|
|
i915_error_object_create(dev_priv, ring->obj);
|
|
|
|
|
|
i915_gem_record_active_context(ring, error, &error->ring[i]);
|
|
|
|
count = 0;
|
|
list_for_each_entry(request, &ring->request_list, list)
|
|
count++;
|
|
|
|
error->ring[i].num_requests = count;
|
|
error->ring[i].requests =
|
|
kcalloc(count, sizeof(*error->ring[i].requests),
|
|
GFP_ATOMIC);
|
|
if (error->ring[i].requests == NULL) {
|
|
error->ring[i].num_requests = 0;
|
|
continue;
|
|
}
|
|
|
|
count = 0;
|
|
list_for_each_entry(request, &ring->request_list, list) {
|
|
struct drm_i915_error_request *erq;
|
|
|
|
erq = &error->ring[i].requests[count++];
|
|
erq->seqno = request->seqno;
|
|
erq->jiffies = request->emitted_jiffies;
|
|
erq->tail = request->tail;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* FIXME: Since pin count/bound list is global, we duplicate what we capture per
|
|
* VM.
|
|
*/
|
|
static void i915_gem_capture_vm(struct drm_i915_private *dev_priv,
|
|
struct drm_i915_error_state *error,
|
|
struct i915_address_space *vm,
|
|
const int ndx)
|
|
{
|
|
struct drm_i915_error_buffer *active_bo = NULL, *pinned_bo = NULL;
|
|
struct drm_i915_gem_object *obj;
|
|
struct i915_vma *vma;
|
|
int i;
|
|
|
|
i = 0;
|
|
list_for_each_entry(vma, &vm->active_list, mm_list)
|
|
i++;
|
|
error->active_bo_count[ndx] = i;
|
|
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list)
|
|
if (obj->pin_count)
|
|
i++;
|
|
error->pinned_bo_count[ndx] = i - error->active_bo_count[ndx];
|
|
|
|
if (i) {
|
|
active_bo = kcalloc(i, sizeof(*active_bo), GFP_ATOMIC);
|
|
if (active_bo)
|
|
pinned_bo = active_bo + error->active_bo_count[ndx];
|
|
}
|
|
|
|
if (active_bo)
|
|
error->active_bo_count[ndx] =
|
|
capture_active_bo(active_bo,
|
|
error->active_bo_count[ndx],
|
|
&vm->active_list);
|
|
|
|
if (pinned_bo)
|
|
error->pinned_bo_count[ndx] =
|
|
capture_pinned_bo(pinned_bo,
|
|
error->pinned_bo_count[ndx],
|
|
&dev_priv->mm.bound_list);
|
|
error->active_bo[ndx] = active_bo;
|
|
error->pinned_bo[ndx] = pinned_bo;
|
|
}
|
|
|
|
static void i915_gem_capture_buffers(struct drm_i915_private *dev_priv,
|
|
struct drm_i915_error_state *error)
|
|
{
|
|
struct i915_address_space *vm;
|
|
int cnt = 0, i = 0;
|
|
|
|
list_for_each_entry(vm, &dev_priv->vm_list, global_link)
|
|
cnt++;
|
|
|
|
if (WARN(cnt > 1, "Multiple VMs not yet supported\n"))
|
|
cnt = 1;
|
|
|
|
vm = &dev_priv->gtt.base;
|
|
|
|
error->active_bo = kcalloc(cnt, sizeof(*error->active_bo), GFP_ATOMIC);
|
|
error->pinned_bo = kcalloc(cnt, sizeof(*error->pinned_bo), GFP_ATOMIC);
|
|
error->active_bo_count = kcalloc(cnt, sizeof(*error->active_bo_count),
|
|
GFP_ATOMIC);
|
|
error->pinned_bo_count = kcalloc(cnt, sizeof(*error->pinned_bo_count),
|
|
GFP_ATOMIC);
|
|
|
|
list_for_each_entry(vm, &dev_priv->vm_list, global_link)
|
|
i915_gem_capture_vm(dev_priv, error, vm, i++);
|
|
}
|
|
|
|
/**
|
|
* i915_capture_error_state - capture an error record for later analysis
|
|
* @dev: drm device
|
|
*
|
|
* Should be called when an error is detected (either a hang or an error
|
|
* interrupt) to capture error state from the time of the error. Fills
|
|
* out a structure which becomes available in debugfs for user level tools
|
|
* to pick up.
|
|
*/
|
|
void i915_capture_error_state(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_i915_error_state *error;
|
|
unsigned long flags;
|
|
int pipe;
|
|
|
|
spin_lock_irqsave(&dev_priv->gpu_error.lock, flags);
|
|
error = dev_priv->gpu_error.first_error;
|
|
spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags);
|
|
if (error)
|
|
return;
|
|
|
|
/* Account for pipe specific data like PIPE*STAT */
|
|
error = kzalloc(sizeof(*error), GFP_ATOMIC);
|
|
if (!error) {
|
|
DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
|
|
return;
|
|
}
|
|
|
|
DRM_INFO("GPU crash dump saved to /sys/class/drm/card%d/error\n",
|
|
dev->primary->index);
|
|
DRM_INFO("GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.\n");
|
|
DRM_INFO("Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel\n");
|
|
DRM_INFO("drm/i915 developers can then reassign to the right component if it's not a kernel issue.\n");
|
|
DRM_INFO("The gpu crash dump is required to analyze gpu hangs, so please always attach it.\n");
|
|
|
|
kref_init(&error->ref);
|
|
error->eir = I915_READ(EIR);
|
|
error->pgtbl_er = I915_READ(PGTBL_ER);
|
|
if (HAS_HW_CONTEXTS(dev))
|
|
error->ccid = I915_READ(CCID);
|
|
|
|
if (HAS_PCH_SPLIT(dev))
|
|
error->ier = I915_READ(DEIER) | I915_READ(GTIER);
|
|
else if (IS_VALLEYVIEW(dev))
|
|
error->ier = I915_READ(GTIER) | I915_READ(VLV_IER);
|
|
else if (IS_GEN2(dev))
|
|
error->ier = I915_READ16(IER);
|
|
else
|
|
error->ier = I915_READ(IER);
|
|
|
|
if (INTEL_INFO(dev)->gen >= 6)
|
|
error->derrmr = I915_READ(DERRMR);
|
|
|
|
if (IS_VALLEYVIEW(dev))
|
|
error->forcewake = I915_READ(FORCEWAKE_VLV);
|
|
else if (INTEL_INFO(dev)->gen >= 7)
|
|
error->forcewake = I915_READ(FORCEWAKE_MT);
|
|
else if (INTEL_INFO(dev)->gen == 6)
|
|
error->forcewake = I915_READ(FORCEWAKE);
|
|
|
|
if (!HAS_PCH_SPLIT(dev))
|
|
for_each_pipe(pipe)
|
|
error->pipestat[pipe] = I915_READ(PIPESTAT(pipe));
|
|
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
error->error = I915_READ(ERROR_GEN6);
|
|
error->done_reg = I915_READ(DONE_REG);
|
|
}
|
|
|
|
if (INTEL_INFO(dev)->gen == 7)
|
|
error->err_int = I915_READ(GEN7_ERR_INT);
|
|
|
|
i915_get_extra_instdone(dev, error->extra_instdone);
|
|
|
|
i915_gem_capture_buffers(dev_priv, error);
|
|
i915_gem_record_fences(dev, error);
|
|
i915_gem_record_rings(dev, error);
|
|
|
|
do_gettimeofday(&error->time);
|
|
|
|
error->overlay = intel_overlay_capture_error_state(dev);
|
|
error->display = intel_display_capture_error_state(dev);
|
|
|
|
spin_lock_irqsave(&dev_priv->gpu_error.lock, flags);
|
|
if (dev_priv->gpu_error.first_error == NULL) {
|
|
dev_priv->gpu_error.first_error = error;
|
|
error = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags);
|
|
|
|
if (error)
|
|
i915_error_state_free(&error->ref);
|
|
}
|
|
|
|
void i915_error_state_get(struct drm_device *dev,
|
|
struct i915_error_state_file_priv *error_priv)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dev_priv->gpu_error.lock, flags);
|
|
error_priv->error = dev_priv->gpu_error.first_error;
|
|
if (error_priv->error)
|
|
kref_get(&error_priv->error->ref);
|
|
spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags);
|
|
|
|
}
|
|
|
|
void i915_error_state_put(struct i915_error_state_file_priv *error_priv)
|
|
{
|
|
if (error_priv->error)
|
|
kref_put(&error_priv->error->ref, i915_error_state_free);
|
|
}
|
|
|
|
void i915_destroy_error_state(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_i915_error_state *error;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dev_priv->gpu_error.lock, flags);
|
|
error = dev_priv->gpu_error.first_error;
|
|
dev_priv->gpu_error.first_error = NULL;
|
|
spin_unlock_irqrestore(&dev_priv->gpu_error.lock, flags);
|
|
|
|
if (error)
|
|
kref_put(&error->ref, i915_error_state_free);
|
|
}
|
|
|
|
const char *i915_cache_level_str(int type)
|
|
{
|
|
switch (type) {
|
|
case I915_CACHE_NONE: return " uncached";
|
|
case I915_CACHE_LLC: return " snooped or LLC";
|
|
case I915_CACHE_L3_LLC: return " L3+LLC";
|
|
case I915_CACHE_WT: return " WT";
|
|
default: return "";
|
|
}
|
|
}
|
|
|
|
/* NB: please notice the memset */
|
|
void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
memset(instdone, 0, sizeof(*instdone) * I915_NUM_INSTDONE_REG);
|
|
|
|
switch (INTEL_INFO(dev)->gen) {
|
|
case 2:
|
|
case 3:
|
|
instdone[0] = I915_READ(INSTDONE);
|
|
break;
|
|
case 4:
|
|
case 5:
|
|
case 6:
|
|
instdone[0] = I915_READ(INSTDONE_I965);
|
|
instdone[1] = I915_READ(INSTDONE1);
|
|
break;
|
|
default:
|
|
WARN_ONCE(1, "Unsupported platform\n");
|
|
case 7:
|
|
case 8:
|
|
instdone[0] = I915_READ(GEN7_INSTDONE_1);
|
|
instdone[1] = I915_READ(GEN7_SC_INSTDONE);
|
|
instdone[2] = I915_READ(GEN7_SAMPLER_INSTDONE);
|
|
instdone[3] = I915_READ(GEN7_ROW_INSTDONE);
|
|
break;
|
|
}
|
|
}
|