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gem_stress: option to only use x-tiling

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This seems to be another trick to massively improve correctness
of the render blit. At least on my i945.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2011-04-12 22:26:42 +02:00
parent f70a717482
commit a67091b220
2 changed files with 18 additions and 7 deletions
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23
tests/gem_stress.c
View File

@ -448,8 +448,8 @@ static void init_set(unsigned set)
else
buffers[set][i].tiling = I915_TILING_NONE;
r >>= 2;
if (options.no_tiling)
buffers[set][i].tiling = I915_TILING_NONE;
if (options.forced_tiling >= 0)
buffers[set][i].tiling = options.forced_tiling;
if (buffers[set][i].tiling == I915_TILING_NONE) {
/* min 64 byte stride */
@ -560,7 +560,8 @@ static void parse_options(int argc, char **argv)
{"buffer-count", 1, 0, 'c'},
{"trace-tile", 1, 0, 't'},
{"disable-render", 0, 0, 'r'},
{"untiled", 0, 0, 'u'}
{"untiled", 0, 0, 'u'},
{"x-tiled", 0, 0, 'x'}
};
options.scratch_buf_size = 256*4096;
@ -569,9 +570,9 @@ static void parse_options(int argc, char **argv)
options.num_buffers = 0;
options.trace_tile = -1;
options.use_render = 1;
options.no_tiling = 0;
options.forced_tiling = -1;
while((c = getopt_long(argc, argv, "ns:g:c:t:ru",
while((c = getopt_long(argc, argv, "ns:g:c:t:rux",
long_options, &option_index)) != -1) {
switch(c) {
case 'd':
@ -612,9 +613,13 @@ static void parse_options(int argc, char **argv)
printf("disabling render copy\n");
break;
case 'u':
options.no_tiling = 1;
options.forced_tiling = I915_TILING_NONE;
printf("disabling tiling\n");
break;
case 'x':
options.forced_tiling = I915_TILING_X;
printf("using only X-tiling\n");
break;
default:
printf("unkown command options\n");
break;
@ -646,7 +651,13 @@ static void init(void)
devid = intel_get_drm_devid(drm_fd);
num_fences = get_num_fences();
batch = intel_batchbuffer_alloc(bufmgr, devid);
busy_bo = drm_intel_bo_alloc(bufmgr, "tiled bo", BUSY_BUF_SIZE, 4096);
if (options.forced_tiling >= 0) {
tmp = options.forced_tiling;
set_tiling(busy_bo, &tmp, 4096);
assert(tmp == options.forced_tiling);
}
for (i = 0; i < num_buffers; i++) {
init_buffer(&buffers[0][i], options.scratch_buf_size);

2
tests/gem_stress.h
View File

@ -31,7 +31,7 @@ struct option_struct {
int no_hw;
int gpu_busy_load;
int use_render;
int no_tiling;
int forced_tiling;
};
extern struct option_struct options;