On 29/05/2015 17:43, john.c.harri...@intel.com wrote:
From: John Harrison <john.c.harri...@intel.com>Now that a single per ring loop is being done for all the different intialisation steps in i915_gem_init_hw(), it is possible to add proper request management as well. The last remaining issue is that the context enable call eventually ends up within *_render_state_init() and this does its own private _i915_add_request() call. This patch adds explicit request creation and submission to the top level loop and removes the add_request() from deep within the sub-functions. v2: Updated for removal of batch_obj from add_request call in previous patch. For: VIZ-5115 Signed-off-by: John Harrison <john.c.harri...@intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 3 ++- drivers/gpu/drm/i915/i915_gem.c | 12 ++++++++++++ drivers/gpu/drm/i915/i915_gem_render_state.c | 2 -- drivers/gpu/drm/i915/intel_lrc.c | 5 ----- 4 files changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 69c8f56..21045e7 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2154,7 +2154,8 @@ struct drm_i915_gem_request { struct intel_context *ctx; struct intel_ringbuffer *ringbuf; - /** Batch buffer related to this request if any */ + /** Batch buffer related to this request if any (used for + error state dump only) */ struct drm_i915_gem_object *batch_obj; /** Time at which this request was emitted, in jiffies. */ diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index a2712a6..1960e30 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -5073,8 +5073,16 @@ i915_gem_init_hw(struct drm_device *dev) /* Now it is safe to go back round and do everything else: */ for_each_ring(ring, dev_priv, i) { + struct drm_i915_gem_request *req; + WARN_ON(!ring->default_context); + ret = i915_gem_request_alloc(ring, ring->default_context, &req); + if (ret) { + i915_gem_cleanup_ringbuffer(dev); + goto out; + } + if (ring->id == RCS) { for (i = 0; i < NUM_L3_SLICES(dev); i++) i915_gem_l3_remap(ring, i); @@ -5083,6 +5091,7 @@ i915_gem_init_hw(struct drm_device *dev) ret = i915_ppgtt_init_ring(ring); if (ret && ret != -EIO) { DRM_ERROR("PPGTT enable ring #%d failed %d\n", i, ret); + i915_gem_request_cancel(req); i915_gem_cleanup_ringbuffer(dev); goto out; } @@ -5090,9 +5099,12 @@ i915_gem_init_hw(struct drm_device *dev) ret = i915_gem_context_enable(ring); if (ret && ret != -EIO) { DRM_ERROR("Context enable ring #%d failed %d\n", i, ret); + i915_gem_request_cancel(req); i915_gem_cleanup_ringbuffer(dev); goto out; } + + i915_add_request_no_flush(ring); } out: diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c b/drivers/gpu/drm/i915/i915_gem_render_state.c index a32a4b9..a07b4ee 100644 --- a/drivers/gpu/drm/i915/i915_gem_render_state.c +++ b/drivers/gpu/drm/i915/i915_gem_render_state.c @@ -173,8 +173,6 @@ int i915_gem_render_state_init(struct intel_engine_cs *ring) i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring); - __i915_add_request(ring, NULL, NULL, true); - /* __i915_add_request moves object to inactive if it fails */ out: i915_gem_render_state_fini(&so); return ret; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index c744362..37efa93 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1351,8 +1351,6 @@ static int intel_lr_context_render_state_init(struct intel_engine_cs *ring, { struct intel_ringbuffer *ringbuf = ctx->engine[ring->id].ringbuf; struct render_state so; - struct drm_i915_file_private *file_priv = ctx->file_priv; - struct drm_file *file = file_priv ? file_priv->file : NULL; int ret; ret = i915_gem_render_state_prepare(ring, &so); @@ -1371,9 +1369,6 @@ static int intel_lr_context_render_state_init(struct intel_engine_cs *ring, i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring); - __i915_add_request(ring, file, NULL, true); - /* intel_logical_ring_add_request moves object to inactive if it - * fails */ out: i915_gem_render_state_fini(&so); return ret;
Reviewed-by: Tomas Elf <tomas....@intel.com> Thanks, Tomas _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
