[PATCH 3/7] drm/i915: Unify engine init loop
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Wed Jul 13 11:57:58 UTC 2016
From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
With the unified common engine setup done, and the execlist engine
initialization loop clearly split into two phases, we can eliminate
the separate legacy engine initialization code.
v2: Fix cleanup path for legacy.
v3: Rename constructors. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 2 --
drivers/gpu/drm/i915/i915_gem.c | 51 +--------------------------------
drivers/gpu/drm/i915/intel_lrc.c | 45 ++++++++++++++++++-----------
drivers/gpu/drm/i915/intel_lrc.h | 2 +-
drivers/gpu/drm/i915/intel_ringbuffer.c | 45 ++++++++++-------------------
drivers/gpu/drm/i915/intel_ringbuffer.h | 10 +++----
6 files changed, 50 insertions(+), 105 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e76cfe2e2471..65d69e52f9c4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2016,7 +2016,6 @@ struct drm_i915_private {
int (*execbuf_submit)(struct i915_execbuffer_params *params,
struct drm_i915_gem_execbuffer2 *args,
struct list_head *vmas);
- int (*init_engines)(struct drm_device *dev);
void (*cleanup_engine)(struct intel_engine_cs *engine);
void (*stop_engine)(struct intel_engine_cs *engine);
@@ -3374,7 +3373,6 @@ static inline u32 i915_reset_count(struct i915_gpu_error *error)
void i915_gem_reset(struct drm_device *dev);
bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
int __must_check i915_gem_init(struct drm_device *dev);
-int i915_gem_init_engines(struct drm_device *dev);
int __must_check i915_gem_init_hw(struct drm_device *dev);
void i915_gem_init_swizzling(struct drm_device *dev);
void i915_gem_cleanup_engines(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index adeca0ec4cfb..b788f97cd4cf 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5056,53 +5056,6 @@ static void init_unused_rings(struct drm_device *dev)
}
}
-int i915_gem_init_engines(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = to_i915(dev);
- int ret;
-
- ret = intel_init_render_ring_buffer(dev);
- if (ret)
- return ret;
-
- if (HAS_BSD(dev)) {
- ret = intel_init_bsd_ring_buffer(dev);
- if (ret)
- goto cleanup_render_ring;
- }
-
- if (HAS_BLT(dev)) {
- ret = intel_init_blt_ring_buffer(dev);
- if (ret)
- goto cleanup_bsd_ring;
- }
-
- if (HAS_VEBOX(dev)) {
- ret = intel_init_vebox_ring_buffer(dev);
- if (ret)
- goto cleanup_blt_ring;
- }
-
- if (HAS_BSD2(dev)) {
- ret = intel_init_bsd2_ring_buffer(dev);
- if (ret)
- goto cleanup_vebox_ring;
- }
-
- return 0;
-
-cleanup_vebox_ring:
- intel_cleanup_engine(&dev_priv->engine[VECS]);
-cleanup_blt_ring:
- intel_cleanup_engine(&dev_priv->engine[BCS]);
-cleanup_bsd_ring:
- intel_cleanup_engine(&dev_priv->engine[VCS]);
-cleanup_render_ring:
- intel_cleanup_engine(&dev_priv->engine[RCS]);
-
- return ret;
-}
-
int
i915_gem_init_hw(struct drm_device *dev)
{
@@ -5178,12 +5131,10 @@ int i915_gem_init(struct drm_device *dev)
if (!i915.enable_execlists) {
dev_priv->gt.execbuf_submit = i915_gem_ringbuffer_submission;
- dev_priv->gt.init_engines = i915_gem_init_engines;
dev_priv->gt.cleanup_engine = intel_cleanup_engine;
dev_priv->gt.stop_engine = intel_stop_engine;
} else {
dev_priv->gt.execbuf_submit = intel_execlists_submission;
- dev_priv->gt.init_engines = intel_logical_rings_init;
dev_priv->gt.cleanup_engine = intel_logical_ring_cleanup;
dev_priv->gt.stop_engine = intel_logical_ring_stop;
}
@@ -5203,7 +5154,7 @@ int i915_gem_init(struct drm_device *dev)
if (ret)
goto out_unlock;
- ret = dev_priv->gt.init_engines(dev);
+ ret = intel_engines_init(dev);
if (ret)
goto out_unlock;
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 604cfbb8aec9..2e13a3a26245 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2139,7 +2139,8 @@ static const struct engine_info {
unsigned guc_id;
u32 mmio_base;
unsigned irq_shift;
- int (*init)(struct intel_engine_cs *engine);
+ int (*init_legacy)(struct intel_engine_cs *engine);
+ int (*init_execlists)(struct intel_engine_cs *engine);
} intel_engines[] = {
[RCS] = {
.name = "render ring",
@@ -2147,7 +2148,8 @@ static const struct engine_info {
.guc_id = GUC_RENDER_ENGINE,
.mmio_base = RENDER_RING_BASE,
.irq_shift = GEN8_RCS_IRQ_SHIFT,
- .init = logical_render_ring_init,
+ .init_execlists = logical_render_ring_init,
+ .init_legacy = intel_init_render_ring_buffer,
},
[BCS] = {
.name = "blitter ring",
@@ -2155,7 +2157,8 @@ static const struct engine_info {
.guc_id = GUC_BLITTER_ENGINE,
.mmio_base = BLT_RING_BASE,
.irq_shift = GEN8_BCS_IRQ_SHIFT,
- .init = logical_xcs_ring_init,
+ .init_execlists = logical_xcs_ring_init,
+ .init_legacy = intel_init_blt_ring_buffer,
},
[VCS] = {
.name = "bsd ring",
@@ -2163,7 +2166,8 @@ static const struct engine_info {
.guc_id = GUC_VIDEO_ENGINE,
.mmio_base = GEN6_BSD_RING_BASE,
.irq_shift = GEN8_VCS1_IRQ_SHIFT,
- .init = logical_xcs_ring_init,
+ .init_execlists = logical_xcs_ring_init,
+ .init_legacy = intel_init_bsd_ring_buffer,
},
[VCS2] = {
.name = "bsd2 ring",
@@ -2171,7 +2175,8 @@ static const struct engine_info {
.guc_id = GUC_VIDEO_ENGINE2,
.mmio_base = GEN8_BSD2_RING_BASE,
.irq_shift = GEN8_VCS2_IRQ_SHIFT,
- .init = logical_xcs_ring_init,
+ .init_execlists = logical_xcs_ring_init,
+ .init_legacy = intel_init_bsd2_ring_buffer,
},
[VECS] = {
.name = "video enhancement ring",
@@ -2179,7 +2184,8 @@ static const struct engine_info {
.guc_id = GUC_VIDEOENHANCE_ENGINE,
.mmio_base = VEBOX_RING_BASE,
.irq_shift = GEN8_VECS_IRQ_SHIFT,
- .init = logical_xcs_ring_init,
+ .init_execlists = logical_xcs_ring_init,
+ .init_legacy = intel_init_vebox_ring_buffer,
},
};
@@ -2202,20 +2208,16 @@ intel_engine_setup(struct drm_i915_private *dev_priv,
}
/**
- * intel_logical_rings_init() - allocate, populate and init the Engine Command Streamers
+ * intel_engines_init() - allocate, populate and init the Engine Command Streamers
* @dev: DRM device.
*
- * This function inits the engines for an Execlists submission style (the
- * equivalent in the legacy ringbuffer submission world would be
- * i915_gem_init_engines). It does it only for those engines that are present in
- * the hardware.
- *
* Return: non-zero if the initialization failed.
*/
-int intel_logical_rings_init(struct drm_device *dev)
+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;
@@ -2226,10 +2228,15 @@ int intel_logical_rings_init(struct drm_device *dev)
if (!HAS_ENGINE(dev_priv, i))
continue;
- if (!intel_engines[i].init)
+ if (i915.enable_execlists)
+ init = intel_engines[i].init_execlists;
+ else
+ init = intel_engines[i].init_legacy;
+
+ if (!init)
continue;
- ret = intel_engines[i].init(intel_engine_setup(dev_priv, i));
+ ret = init(intel_engine_setup(dev_priv, i));
if (ret)
goto cleanup;
@@ -2250,8 +2257,12 @@ int intel_logical_rings_init(struct drm_device *dev)
return 0;
cleanup:
- for (i = 0; i < I915_NUM_ENGINES; i++)
- intel_logical_ring_cleanup(&dev_priv->engine[i]);
+ 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;
}
diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h
index 2b8255c19dcc..aa8905c42de7 100644
--- a/drivers/gpu/drm/i915/intel_lrc.h
+++ b/drivers/gpu/drm/i915/intel_lrc.h
@@ -67,7 +67,7 @@ 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 intel_logical_rings_init(struct drm_device *dev);
+int intel_engines_init(struct drm_device *dev);
int logical_ring_flush_all_caches(struct drm_i915_gem_request *req);
/**
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index c855ff9e28e4..91ca268565e6 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2835,14 +2835,11 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
intel_ring_init_semaphores(dev_priv, engine);
}
-int intel_init_render_ring_buffer(struct drm_device *dev)
+int intel_init_render_ring_buffer(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_engine_cs *engine;
+ struct drm_i915_private *dev_priv = engine->i915;
int ret;
- engine = intel_engine_setup(dev_priv, RCS);
-
intel_ring_default_vfuncs(dev_priv, engine);
engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT;
@@ -2876,7 +2873,7 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
engine->init_hw = init_render_ring;
engine->cleanup = render_ring_cleanup;
- ret = intel_init_ring_buffer(dev, engine);
+ ret = intel_init_ring_buffer(&dev_priv->drm, engine);
if (ret)
return ret;
@@ -2893,12 +2890,9 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
return 0;
}
-int intel_init_bsd_ring_buffer(struct drm_device *dev)
+int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_engine_cs *engine;
-
- engine = intel_engine_setup(dev_priv, VCS);
+ struct drm_i915_private *dev_priv = engine->i915;
intel_ring_default_vfuncs(dev_priv, engine);
@@ -2921,18 +2915,15 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
engine->irq_enable_mask = I915_BSD_USER_INTERRUPT;
}
- return intel_init_ring_buffer(dev, engine);
+ return intel_init_ring_buffer(&dev_priv->drm, engine);
}
/**
* Initialize the second BSD ring (eg. Broadwell GT3, Skylake GT3)
*/
-int intel_init_bsd2_ring_buffer(struct drm_device *dev)
+int intel_init_bsd2_ring_buffer(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_engine_cs *engine;
-
- engine = intel_engine_setup(dev_priv, VCS2);
+ struct drm_i915_private *dev_priv = engine->i915;
intel_ring_default_vfuncs(dev_priv, engine);
@@ -2940,15 +2931,12 @@ int intel_init_bsd2_ring_buffer(struct drm_device *dev)
engine->irq_enable_mask =
GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT;
- return intel_init_ring_buffer(dev, engine);
+ return intel_init_ring_buffer(&dev_priv->drm, engine);
}
-int intel_init_blt_ring_buffer(struct drm_device *dev)
+int intel_init_blt_ring_buffer(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_engine_cs *engine;
-
- engine = intel_engine_setup(dev_priv, BCS);
+ struct drm_i915_private *dev_priv = engine->i915;
intel_ring_default_vfuncs(dev_priv, engine);
@@ -2959,15 +2947,12 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
else
engine->irq_enable_mask = GT_BLT_USER_INTERRUPT;
- return intel_init_ring_buffer(dev, engine);
+ return intel_init_ring_buffer(&dev_priv->drm, engine);
}
-int intel_init_vebox_ring_buffer(struct drm_device *dev)
+int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_engine_cs *engine;
-
- engine = intel_engine_setup(dev_priv, VECS);
+ struct drm_i915_private *dev_priv = engine->i915;
intel_ring_default_vfuncs(dev_priv, engine);
@@ -2982,7 +2967,7 @@ int intel_init_vebox_ring_buffer(struct drm_device *dev)
engine->irq_disable = hsw_vebox_irq_disable;
}
- return intel_init_ring_buffer(dev, engine);
+ return intel_init_ring_buffer(&dev_priv->drm, engine);
}
int
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index f8eeb50868c3..a25eac17efcd 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -484,11 +484,11 @@ int intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req);
int intel_init_pipe_control(struct intel_engine_cs *engine, int size);
void intel_fini_pipe_control(struct intel_engine_cs *engine);
-int intel_init_render_ring_buffer(struct drm_device *dev);
-int intel_init_bsd_ring_buffer(struct drm_device *dev);
-int intel_init_bsd2_ring_buffer(struct drm_device *dev);
-int intel_init_blt_ring_buffer(struct drm_device *dev);
-int intel_init_vebox_ring_buffer(struct drm_device *dev);
+int intel_init_render_ring_buffer(struct intel_engine_cs *engine);
+int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine);
+int intel_init_bsd2_ring_buffer(struct intel_engine_cs *engine);
+int intel_init_blt_ring_buffer(struct intel_engine_cs *engine);
+int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine);
u64 intel_ring_get_active_head(struct intel_engine_cs *engine);
static inline u32 intel_engine_get_seqno(struct intel_engine_cs *engine)
--
1.9.1
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