diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.h | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 5134c04..cc56206 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -194,13 +194,15 @@ struct i915_vma { * bits with absolutely no headroom. So use 4 bits. */ #define I915_VMA_PIN_MASK 0xf +#define I915_VMA_PIN_OVERFLOW BIT(5) /** Flags and address space this VMA is bound to */ -#define I915_VMA_GLOBAL_BIND BIT(5) -#define I915_VMA_LOCAL_BIND BIT(6) +#define I915_VMA_GLOBAL_BIND BIT(6) +#define I915_VMA_LOCAL_BIND BIT(7) +#define I915_VMA_BIND_MASK (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND | I915_VMA_PIN_OVERFLOW) -#define I915_VMA_GGTT BIT(7) -#define I915_VMA_CLOSED BIT(8) +#define I915_VMA_GGTT BIT(8) +#define I915_VMA_CLOSED BIT(9) unsigned int active; struct i915_gem_active last_read[I915_NUM_ENGINES]; @@ -620,20 +622,39 @@ i915_ggtt_view_equal(const struct i915_ggtt_view *a, return true; } -int __must_check -i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags); /* Flags used by pin/bind&friends. */ -#define PIN_MAPPABLE BIT(0) -#define PIN_NONBLOCK BIT(1) -#define PIN_GLOBAL BIT(2) -#define PIN_OFFSET_BIAS BIT(3) -#define PIN_USER BIT(4) -#define PIN_UPDATE BIT(5) -#define PIN_ZONE_4G BIT(6) -#define PIN_HIGH BIT(7) -#define PIN_OFFSET_FIXED BIT(8) +#define PIN_NONBLOCK BIT(0) +#define PIN_MAPPABLE BIT(1) +#define PIN_ZONE_4G BIT(2) + +#define PIN_MBZ BIT(5) /* I915_VMA_PIN_OVERFLOW */ +#define PIN_GLOBAL BIT(6) /* I915_VMA_GLOBAL_BIND */ +#define PIN_USER BIT(7) /* I915_VMA_LOCAL_BIND */ +#define PIN_UPDATE BIT(8) + +#define PIN_HIGH BIT(9) +#define PIN_OFFSET_BIAS BIT(10) +#define PIN_OFFSET_FIXED BIT(11) #define PIN_OFFSET_MASK (~4095) +int __i915_vma_do_pin(struct i915_vma *vma, + u64 size, u64 alignment, u64 flags); +static inline int __must_check +i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) +{ + BUILD_BUG_ON(PIN_MBZ != I915_VMA_PIN_OVERFLOW); + BUILD_BUG_ON(PIN_GLOBAL != I915_VMA_GLOBAL_BIND); + BUILD_BUG_ON(PIN_USER != I915_VMA_LOCAL_BIND); + + /* Pin early to prevent the shrinker/eviction logic from destroying + * our vma as we insert and bind. + */ + if (likely(((++vma->flags ^ flags) & I915_VMA_BIND_MASK) == 0)) + return 0; + + return __i915_vma_do_pin(vma, size, alignment, flags); +} + static inline int i915_vma_pin_count(const struct i915_vma *vma) { return vma->flags & I915_VMA_PIN_MASK; @@ -647,7 +668,7 @@ static inline bool i915_vma_is_pinned(const struct i915_vma *vma) static inline void __i915_vma_pin(struct i915_vma *vma) { vma->flags++; - GEM_BUG_ON(!i915_vma_is_pinned(vma)); + GEM_BUG_ON(vma->flags & I915_VMA_PIN_OVERFLOW); } static inline void __i915_vma_unpin(struct i915_vma *vma) |
