diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-07-26 11:49:32 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-07-26 12:56:25 +0200 |
| commit | 42d6ab4839799b2f246748ce663d6b023f02bb73 (patch) | |
| tree | 33c8f55e3a4dfd9f62df68894685af6c11921767 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | f27b92651d72e863c308ea5dca5615fc98e38ca6 (diff) | |
drm/i915: Segregate memory domains in the GTT using coloring
Several functions of the GPU have the restriction that differing memory
domains cannot be placed next to each other (as the GPU may prefetch
beyond the end of one domain and hang as it crosses into the other
domain). We use the facility of the drm_mm to mark ranges with a
particular color that corresponds to the cache attributes of those pages
in order to prevent allocating adjacent blocks of differing memory
types.
v2: Rebase ontop of drm_mm coloring v2.
v3: Fix rebinding existing gtt_space and add a verification routine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e6e63c1aee6..270b31cabc1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -109,6 +109,7 @@ struct intel_pch_pll { #define WATCH_COHERENCY 0 #define WATCH_LISTS 0 +#define WATCH_GTT 0 #define I915_GEM_PHYS_CURSOR_0 1 #define I915_GEM_PHYS_CURSOR_1 2 @@ -1406,7 +1407,9 @@ void i915_gem_init_global_gtt(struct drm_device *dev, /* i915_gem_evict.c */ int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size, - unsigned alignment, bool mappable); + unsigned alignment, + unsigned cache_level, + bool mappable); int i915_gem_evict_everything(struct drm_device *dev, bool purgeable_only); /* i915_gem_stolen.c */ |