p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

drm/i915: Convert fence computations to use vma directly 

Lookup the GGTT vma once for the object assigned to the fence, and then
derive everything from that vma.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-13-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-08-15 10:48:52 +01:00
parent 8b797af189
commit a83718b681
1 changed files with 26 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/gpu/drm/i915/i915_gem_fence.c
View File

@ -85,22 +85,19 @@ static void i965_write_fence_reg(struct drm_device *dev, int reg,
POSTING_READ(fence_reg_lo);
if (obj) {
u32 size = i915_gem_obj_ggtt_size(obj);
struct i915_vma *vma = i915_gem_obj_to_ggtt(obj);
unsigned int tiling = i915_gem_object_get_tiling(obj);
unsigned int stride = i915_gem_object_get_stride(obj);
uint64_t val;
u32 size = vma->node.size;
u32 row_size = stride * (tiling == I915_TILING_Y ? 32 : 8);
u64 val;
/* Adjust fence size to match tiled area */
if (tiling != I915_TILING_NONE) {
uint32_t row_size = stride *
(tiling == I915_TILING_Y ? 32 : 8);
size = (size / row_size) * row_size;
}
size = rounddown(size, row_size);
val = (uint64_t)((i915_gem_obj_ggtt_offset(obj) + size - 4096) &
0xfffff000) << 32;
val |= i915_gem_obj_ggtt_offset(obj) & 0xfffff000;
val |= (uint64_t)((stride / 128) - 1) << fence_pitch_shift;
val = ((vma->node.start + size - 4096) & 0xfffff000) << 32;
val |= vma->node.start & 0xfffff000;
val |= (u64)((stride / 128) - 1) << fence_pitch_shift;
if (tiling == I915_TILING_Y)
val |= 1 << I965_FENCE_TILING_Y_SHIFT;
val |= I965_FENCE_REG_VALID;
@ -123,17 +120,17 @@ static void i915_write_fence_reg(struct drm_device *dev, int reg,
u32 val;
if (obj) {
u32 size = i915_gem_obj_ggtt_size(obj);
struct i915_vma *vma = i915_gem_obj_to_ggtt(obj);
unsigned int tiling = i915_gem_object_get_tiling(obj);
unsigned int stride = i915_gem_object_get_stride(obj);
int pitch_val;
int tile_width;
WARN((i915_gem_obj_ggtt_offset(obj) & ~I915_FENCE_START_MASK) ||
(size & -size) != size ||
(i915_gem_obj_ggtt_offset(obj) & (size - 1)),
"object 0x%08llx [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n",
i915_gem_obj_ggtt_offset(obj), obj->map_and_fenceable, size);
WARN((vma->node.start & ~I915_FENCE_START_MASK) ||
!is_power_of_2(vma->node.size) ||
(vma->node.start & (vma->node.size - 1)),
"object 0x%08llx [fenceable? %d] not 1M or pot-size (0x%08llx) aligned\n",
vma->node.start, obj->map_and_fenceable, vma->node.size);
if (tiling == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev))
tile_width = 128;
@ -144,10 +141,10 @@ static void i915_write_fence_reg(struct drm_device *dev, int reg,
pitch_val = stride / tile_width;
pitch_val = ffs(pitch_val) - 1;
val = i915_gem_obj_ggtt_offset(obj);
val = vma->node.start;
if (tiling == I915_TILING_Y)
val |= 1 << I830_FENCE_TILING_Y_SHIFT;
val |= I915_FENCE_SIZE_BITS(size);
val |= I915_FENCE_SIZE_BITS(vma->node.size);
val |= pitch_val << I830_FENCE_PITCH_SHIFT;
val |= I830_FENCE_REG_VALID;
} else
@ -161,27 +158,27 @@ static void i830_write_fence_reg(struct drm_device *dev, int reg,
struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = to_i915(dev);
uint32_t val;
u32 val;
if (obj) {
u32 size = i915_gem_obj_ggtt_size(obj);
struct i915_vma *vma = i915_gem_obj_to_ggtt(obj);
unsigned int tiling = i915_gem_object_get_tiling(obj);
unsigned int stride = i915_gem_object_get_stride(obj);
uint32_t pitch_val;
u32 pitch_val;
WARN((i915_gem_obj_ggtt_offset(obj) & ~I830_FENCE_START_MASK) ||
(size & -size) != size ||
(i915_gem_obj_ggtt_offset(obj) & (size - 1)),
"object 0x%08llx not 512K or pot-size 0x%08x aligned\n",
i915_gem_obj_ggtt_offset(obj), size);
WARN((vma->node.start & ~I830_FENCE_START_MASK) ||
!is_power_of_2(vma->node.size) ||
(vma->node.start & (vma->node.size - 1)),
"object 0x%08llx not 512K or pot-size 0x%08llx aligned\n",
vma->node.start, vma->node.size);
pitch_val = stride / 128;
pitch_val = ffs(pitch_val) - 1;
val = i915_gem_obj_ggtt_offset(obj);
val = vma->node.start;
if (tiling == I915_TILING_Y)
val |= 1 << I830_FENCE_TILING_Y_SHIFT;
val |= I830_FENCE_SIZE_BITS(size);
val |= I830_FENCE_SIZE_BITS(vma->node.size);
val |= pitch_val << I830_FENCE_PITCH_SHIFT;
val |= I830_FENCE_REG_VALID;
} else