diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 24 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.c | 35 |
3 files changed, 44 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 40acdde5f224..61c0f5c7353b 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2227,6 +2227,7 @@ int __must_check i915_gem_context_init(struct drm_device *dev); void i915_gem_context_fini(struct drm_device *dev); void i915_gem_context_reset(struct drm_device *dev); int i915_gem_context_open(struct drm_device *dev, struct drm_file *file); +int i915_gem_context_enable(struct drm_i915_private *dev_priv); void i915_gem_context_close(struct drm_device *dev, struct drm_file *file); int i915_switch_context(struct intel_ring_buffer *ring, struct drm_file *file, int to_id); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index fe17c62c7b09..e3431e748ee2 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4433,14 +4433,16 @@ i915_gem_init_hw(struct drm_device *dev) i915_gem_l3_remap(&dev_priv->ring[RCS], i); /* - * XXX: There was some w/a described somewhere suggesting loading - * contexts before PPGTT. + * XXX: Contexts should only be initialized once. Doing a switch to the + * default context switch however is something we'd like to do after + * reset or thaw (the latter may not actually be necessary for HW, but + * goes with our code better). Context switching requires rings (for + * the do_switch), but before enabling PPGTT. So don't move this. */ - ret = i915_gem_context_init(dev); + ret = i915_gem_context_enable(dev_priv); if (ret) { - i915_gem_cleanup_ringbuffer(dev); - DRM_ERROR("Context initialization failed %d\n", ret); - return ret; + DRM_ERROR("Context enable failed %d\n", ret); + goto err_out; } if (dev_priv->mm.aliasing_ppgtt) { @@ -4448,10 +4450,15 @@ i915_gem_init_hw(struct drm_device *dev) if (ret) { i915_gem_cleanup_aliasing_ppgtt(dev); DRM_INFO("PPGTT enable failed. This is not fatal, but unexpected\n"); + ret = 0; } } return 0; + +err_out: + i915_gem_cleanup_ringbuffer(dev); + return ret; } int i915_gem_init(struct drm_device *dev) @@ -4470,9 +4477,14 @@ int i915_gem_init(struct drm_device *dev) i915_gem_init_global_gtt(dev); + ret = i915_gem_context_init(dev); + if (ret) + return ret; + ret = i915_gem_init_hw(dev); mutex_unlock(&dev->struct_mutex); if (ret) { + i915_gem_context_fini(dev); i915_gem_cleanup_aliasing_ppgtt(dev); drm_mm_takedown(&dev_priv->gtt.base.mm); return ret; diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 509e460e982e..08e48b29a8d2 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -237,19 +237,11 @@ static int create_default_context(struct drm_device *dev) goto err_destroy; } - ret = do_switch(&dev_priv->ring[RCS], ctx); - if (ret) { - DRM_DEBUG_DRIVER("Switch failed %d\n", ret); - goto err_unpin; - } - dev_priv->ring[RCS].default_context = ctx; DRM_DEBUG_DRIVER("Default HW context loaded\n"); return 0; -err_unpin: - i915_gem_object_ggtt_unpin(ctx->obj); err_destroy: i915_gem_context_unreference(ctx); return ret; @@ -307,8 +299,9 @@ int i915_gem_context_init(struct drm_device *dev) if (!HAS_HW_CONTEXTS(dev)) return 0; - /* If called from reset, or thaw... we've been here already */ - if (dev_priv->ring[RCS].default_context) + /* Init should only be called once per module load. Eventually the + * restriction on the context_disabled check can be loosened. */ + if (WARN_ON(dev_priv->ring[RCS].default_context)) return 0; dev_priv->hw_context_size = round_up(get_context_size(dev), 4096); @@ -384,6 +377,28 @@ void i915_gem_context_fini(struct drm_device *dev) i915_gem_context_unreference(dctx); } +int i915_gem_context_enable(struct drm_i915_private *dev_priv) +{ + struct intel_ring_buffer *ring; + int ret, i; + + if (!HAS_HW_CONTEXTS(dev_priv->dev)) + return 0; + + /* FIXME: We should make this work, even in reset */ + if (i915_reset_in_progress(&dev_priv->gpu_error)) + return 0; + + BUG_ON(!dev_priv->ring[RCS].default_context); + for_each_ring(ring, dev_priv, i) { + ret = do_switch(ring, ring->default_context); + if (ret) + return ret; + } + + return 0; +} + static int context_idr_cleanup(int id, void *p, void *data) { struct i915_hw_context *ctx = p; |