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gem_stress: extract emit_blt

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Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2011-04-03 13:10:07 +02:00
parent 4fcfc9f102
commit aeb0b6f33c
1 changed files with 28 additions and 49 deletions
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77
tests/gem_stress.c
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@ -104,30 +104,22 @@ static void tile2xy(struct scratch_buf *buf, unsigned tile, unsigned *x, unsigne
*y = ((tile*TILE_SIZE) / (buf->stride/sizeof(uint32_t))) * TILE_SIZE;
}
/* All this gem trashing wastes too much cpu time, so give the gpu something to
* do to increase changes for races. */
void keep_gpu_busy(void)
static void emit_blt(drm_intel_bo *src_bo, uint32_t src_tiling, unsigned src_pitch,
unsigned src_x, unsigned src_y, unsigned w, unsigned h,
drm_intel_bo *dst_bo, uint32_t dst_tiling, unsigned dst_pitch,
unsigned dst_x, unsigned dst_y)
{
uint32_t src_pitch, dst_pitch, cmd_bits;
int tmp;
uint32_t cmd_bits = 0;
src_pitch = 4096;
dst_pitch = 4096;
cmd_bits = 0;
#if 0 /* busy_buf is untiled */
if (IS_965(devid)) {
if (IS_965(devid) && src_tiling) {
src_pitch /= 4;
cmd_bits |= XY_SRC_COPY_BLT_SRC_TILED;
}
if (IS_965(devid)) {
if (IS_965(devid) && dst_tiling) {
dst_pitch /= 4;
cmd_bits |= XY_SRC_COPY_BLT_DST_TILED;
}
#endif
tmp = 1 << gpu_busy_load;
assert(tmp <= 1024);
/* copy lower half to upper half */
BEGIN_BATCH(8);
@ -138,15 +130,28 @@ void keep_gpu_busy(void)
OUT_BATCH((3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
dst_pitch);
OUT_BATCH(128 << 16 | 0);
OUT_BATCH(256 << 16 | tmp);
OUT_RELOC(busy_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(0 << 16 | 0);
OUT_BATCH(dst_y << 16 | dst_x);
OUT_BATCH((dst_y+h) << 16 | (dst_x+w));
OUT_RELOC_FENCED(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(src_y << 16 | src_x);
OUT_BATCH(src_pitch);
OUT_RELOC(busy_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
OUT_RELOC_FENCED(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
ADVANCE_BATCH();
}
/* All this gem trashing wastes too much cpu time, so give the gpu something to
* do to increase changes for races. */
void keep_gpu_busy(void)
{
int tmp;
tmp = 1 << gpu_busy_load;
assert(tmp <= 1024);
emit_blt(busy_bo, 0, 4096, 0, 0, tmp, 128,
busy_bo, 0, 4096, 0, 128);
}
static unsigned int copyfunc_seq = 0;
static void (*copyfunc)(struct scratch_buf *src, unsigned src_x, unsigned src_y,
struct scratch_buf *dst, unsigned dst_x, unsigned dst_y,
@ -227,41 +232,15 @@ static void blitter_copyfunc(struct scratch_buf *src, unsigned src_x, unsigned s
struct scratch_buf *dst, unsigned dst_x, unsigned dst_y,
unsigned logical_tile_no)
{
uint32_t src_pitch, dst_pitch, cmd_bits;
src_pitch = src->stride;
dst_pitch = dst->stride;
cmd_bits = 0;
static unsigned keep_gpu_busy_counter = 0;
/* check both edges of the fence usage */
if (keep_gpu_busy_counter & 1 && !fence_storm)
keep_gpu_busy();
if (IS_965(devid) && src->tiling) {
src_pitch /= 4;
cmd_bits |= XY_SRC_COPY_BLT_SRC_TILED;
}
if (IS_965(devid) && dst->tiling) {
dst_pitch /= 4;
cmd_bits |= XY_SRC_COPY_BLT_DST_TILED;
}
BEGIN_BATCH(8);
OUT_BATCH(XY_SRC_COPY_BLT_CMD |
XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB |
cmd_bits);
OUT_BATCH((3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
dst_pitch);
OUT_BATCH(dst_y << 16 | dst_x);
OUT_BATCH((dst_y+TILE_SIZE) << 16 | (dst_x+TILE_SIZE));
OUT_RELOC_FENCED(dst->bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
OUT_BATCH(src_y << 16 | src_x);
OUT_BATCH(src_pitch);
OUT_RELOC_FENCED(src->bo, I915_GEM_DOMAIN_RENDER, 0, 0);
ADVANCE_BATCH();
emit_blt(src->bo, src->tiling, src->stride, src_x, src_y,
TILE_SIZE, TILE_SIZE,
dst->bo, dst->tiling, dst->stride, dst_x, dst_y);
if (!(keep_gpu_busy_counter & 1) && !fence_storm)
keep_gpu_busy();