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drm/i915: Move common engine setup into intel_engine_cs.c 

Common code deserves to be put in a separate file from legacy and
execlists implementation for clarity and ease of maintenance.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris-wilson.co.uk>
hifive-unleashed-5.1
Tvrtko Ursulin 2016-07-13 16:03:40 +01:00
parent acd2784562
commit 88d2ba2e95
5 changed files with 168 additions and 140 deletions
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1
drivers/gpu/drm/i915/Makefile
View File

@ -40,6 +40,7 @@ i915-y += i915_cmd_parser.o \
i915_gpu_error.o \
i915_trace_points.o \
intel_breadcrumbs.o \
intel_engine_cs.o \
intel_lrc.o \
intel_mocs.o \
intel_ringbuffer.o \

162
drivers/gpu/drm/i915/intel_engine_cs.c 100644
View File

@ -0,0 +1,162 @@
/*
* Copyright © 2016 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.
*
*/
#include "i915_drv.h"
#include "intel_ringbuffer.h"
#include "intel_lrc.h"
static const struct engine_info {
const char *name;
unsigned exec_id;
unsigned guc_id;
u32 mmio_base;
unsigned irq_shift;
int (*init_legacy)(struct intel_engine_cs *engine);
int (*init_execlists)(struct intel_engine_cs *engine);
} intel_engines[] = {
[RCS] = {
.name = "render ring",
.exec_id = I915_EXEC_RENDER,
.guc_id = GUC_RENDER_ENGINE,
.mmio_base = RENDER_RING_BASE,
.irq_shift = GEN8_RCS_IRQ_SHIFT,
.init_execlists = logical_render_ring_init,
.init_legacy = intel_init_render_ring_buffer,
},
[BCS] = {
.name = "blitter ring",
.exec_id = I915_EXEC_BLT,
.guc_id = GUC_BLITTER_ENGINE,
.mmio_base = BLT_RING_BASE,
.irq_shift = GEN8_BCS_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_blt_ring_buffer,
},
[VCS] = {
.name = "bsd ring",
.exec_id = I915_EXEC_BSD,
.guc_id = GUC_VIDEO_ENGINE,
.mmio_base = GEN6_BSD_RING_BASE,
.irq_shift = GEN8_VCS1_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_bsd_ring_buffer,
},
[VCS2] = {
.name = "bsd2 ring",
.exec_id = I915_EXEC_BSD,
.guc_id = GUC_VIDEO_ENGINE2,
.mmio_base = GEN8_BSD2_RING_BASE,
.irq_shift = GEN8_VCS2_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_bsd2_ring_buffer,
},
[VECS] = {
.name = "video enhancement ring",
.exec_id = I915_EXEC_VEBOX,
.guc_id = GUC_VIDEOENHANCE_ENGINE,
.mmio_base = VEBOX_RING_BASE,
.irq_shift = GEN8_VECS_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_vebox_ring_buffer,
},
};
static struct intel_engine_cs *
intel_engine_setup(struct drm_i915_private *dev_priv,
enum intel_engine_id id)
{
const struct engine_info *info = &intel_engines[id];
struct intel_engine_cs *engine = &dev_priv->engine[id];
engine->id = id;
engine->i915 = dev_priv;
engine->name = info->name;
engine->exec_id = info->exec_id;
engine->hw_id = engine->guc_id = info->guc_id;
engine->mmio_base = info->mmio_base;
engine->irq_shift = info->irq_shift;
return engine;
}
/**
* intel_engines_init() - allocate, populate and init the Engine Command Streamers
* @dev: DRM device.
*
* Return: non-zero if the initialization failed.
*/
int intel_engines_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
unsigned int mask = 0;
int (*init)(struct intel_engine_cs *engine);
unsigned int i;
int ret;
WARN_ON(INTEL_INFO(dev_priv)->ring_mask &
GENMASK(sizeof(mask) * BITS_PER_BYTE - 1, I915_NUM_ENGINES));
for (i = 0; i < ARRAY_SIZE(intel_engines); i++) {
if (!HAS_ENGINE(dev_priv, i))
continue;
if (i915.enable_execlists)
init = intel_engines[i].init_execlists;
else
init = intel_engines[i].init_legacy;
if (!init)
continue;
ret = init(intel_engine_setup(dev_priv, i));
if (ret)
goto cleanup;
mask |= ENGINE_MASK(i);
}
/*
* Catch failures to update intel_engines table when the new engines
* are added to the driver by a warning and disabling the forgotten
* engines.
*/
if (WARN_ON(mask != INTEL_INFO(dev_priv)->ring_mask)) {
struct intel_device_info *info =
(struct intel_device_info *)&dev_priv->info;
info->ring_mask = mask;
}
return 0;
cleanup:
for (i = 0; i < I915_NUM_ENGINES; i++) {
if (i915.enable_execlists)
intel_logical_ring_cleanup(&dev_priv->engine[i]);
else
intel_cleanup_engine(&dev_priv->engine[i]);
}
return ret;
}

138
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -2083,7 +2083,7 @@ error:
return ret;
}
static int logical_render_ring_init(struct intel_engine_cs *engine)
int logical_render_ring_init(struct intel_engine_cs *engine)
{
struct drm_i915_private *dev_priv = engine->i915;
int ret;
@ -2126,147 +2126,13 @@ static int logical_render_ring_init(struct intel_engine_cs *engine)
return ret;
}
static int logical_xcs_ring_init(struct intel_engine_cs *engine)
int logical_xcs_ring_init(struct intel_engine_cs *engine)
{
logical_ring_setup(engine);
return logical_ring_init(engine);
}
static const struct engine_info {
const char *name;
unsigned exec_id;
unsigned guc_id;
u32 mmio_base;
unsigned irq_shift;
int (*init_legacy)(struct intel_engine_cs *engine);
int (*init_execlists)(struct intel_engine_cs *engine);
} intel_engines[] = {
[RCS] = {
.name = "render ring",
.exec_id = I915_EXEC_RENDER,
.guc_id = GUC_RENDER_ENGINE,
.mmio_base = RENDER_RING_BASE,
.irq_shift = GEN8_RCS_IRQ_SHIFT,
.init_execlists = logical_render_ring_init,
.init_legacy = intel_init_render_ring_buffer,
},
[BCS] = {
.name = "blitter ring",
.exec_id = I915_EXEC_BLT,
.guc_id = GUC_BLITTER_ENGINE,
.mmio_base = BLT_RING_BASE,
.irq_shift = GEN8_BCS_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_blt_ring_buffer,
},
[VCS] = {
.name = "bsd ring",
.exec_id = I915_EXEC_BSD,
.guc_id = GUC_VIDEO_ENGINE,
.mmio_base = GEN6_BSD_RING_BASE,
.irq_shift = GEN8_VCS1_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_bsd_ring_buffer,
},
[VCS2] = {
.name = "bsd2 ring",
.exec_id = I915_EXEC_BSD,
.guc_id = GUC_VIDEO_ENGINE2,
.mmio_base = GEN8_BSD2_RING_BASE,
.irq_shift = GEN8_VCS2_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_bsd2_ring_buffer,
},
[VECS] = {
.name = "video enhancement ring",
.exec_id = I915_EXEC_VEBOX,
.guc_id = GUC_VIDEOENHANCE_ENGINE,
.mmio_base = VEBOX_RING_BASE,
.irq_shift = GEN8_VECS_IRQ_SHIFT,
.init_execlists = logical_xcs_ring_init,
.init_legacy = intel_init_vebox_ring_buffer,
},
};
struct intel_engine_cs *
intel_engine_setup(struct drm_i915_private *dev_priv,
enum intel_engine_id id)
{
const struct engine_info *info = &intel_engines[id];
struct intel_engine_cs *engine = &dev_priv->engine[id];
engine->id = id;
engine->i915 = dev_priv;
engine->name = info->name;
engine->exec_id = info->exec_id;
engine->hw_id = engine->guc_id = info->guc_id;
engine->mmio_base = info->mmio_base;
engine->irq_shift = info->irq_shift;
return engine;
}
/**
* intel_engines_init() - allocate, populate and init the Engine Command Streamers
* @dev: DRM device.
*
* Return: non-zero if the initialization failed.
*/
int intel_engines_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
unsigned int mask = 0;
int (*init)(struct intel_engine_cs *engine);
unsigned int i;
int ret;
WARN_ON(INTEL_INFO(dev_priv)->ring_mask &
GENMASK(sizeof(mask) * BITS_PER_BYTE - 1, I915_NUM_ENGINES));
for (i = 0; i < ARRAY_SIZE(intel_engines); i++) {
if (!HAS_ENGINE(dev_priv, i))
continue;
if (i915.enable_execlists)
init = intel_engines[i].init_execlists;
else
init = intel_engines[i].init_legacy;
if (!init)
continue;
ret = init(intel_engine_setup(dev_priv, i));
if (ret)
goto cleanup;
mask |= ENGINE_MASK(i);
}
/*
* Catch failures to update intel_engines table when the new engines
* are added to the driver by a warning and disabling the forgotten
* engines.
*/
if (WARN_ON(mask != INTEL_INFO(dev_priv)->ring_mask)) {
struct intel_device_info *info =
(struct intel_device_info *)&dev_priv->info;
info->ring_mask = mask;
}
return 0;
cleanup:
for (i = 0; i < I915_NUM_ENGINES; i++) {
if (i915.enable_execlists)
intel_logical_ring_cleanup(&dev_priv->engine[i]);
else
intel_cleanup_engine(&dev_priv->engine[i]);
}
return ret;
}
static u32
make_rpcs(struct drm_i915_private *dev_priv)
{

3
drivers/gpu/drm/i915/intel_lrc.h
View File

@ -67,6 +67,9 @@ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request
int intel_logical_ring_reserve_space(struct drm_i915_gem_request *request);
void intel_logical_ring_stop(struct intel_engine_cs *engine);
void intel_logical_ring_cleanup(struct intel_engine_cs *engine);
int logical_render_ring_init(struct intel_engine_cs *engine);
int logical_xcs_ring_init(struct intel_engine_cs *engine);
int intel_engines_init(struct drm_device *dev);
int logical_ring_flush_all_caches(struct drm_i915_gem_request *req);

4
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@ -362,10 +362,6 @@ struct intel_engine_cs {
u32 (*get_cmd_length_mask)(u32 cmd_header);
};
struct intel_engine_cs *
intel_engine_setup(struct drm_i915_private *dev_priv,
enum intel_engine_id id);
static inline bool
intel_engine_initialized(const struct intel_engine_cs *engine)
{