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ilo: PIPE_CAP_QUERY_TIMESTAMP may not be supported

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Reading TIMESTAMP register may fail, depending on both kernel and hardware.
This commit is contained in:
Chia-I Wu 2014-03-09 02:00:46 +08:00
parent 249b1ad984
commit a434ac045e
4 changed files with 19 additions and 1 deletions
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1
src/gallium/drivers/ilo/ilo_common.h
View file

@ -71,6 +71,7 @@ struct ilo_dev_info {
bool has_llc;
bool has_gen7_sol_reset;
bool has_address_swizzling;
bool has_timestamp;
int gen;
int gt;

4
src/gallium/drivers/ilo/ilo_screen.c
View file

@ -404,8 +404,9 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
/* imposed by OWord (Dual) Block Read */
return 16;
case PIPE_CAP_START_INSTANCE:
case PIPE_CAP_QUERY_TIMESTAMP:
return true;
case PIPE_CAP_QUERY_TIMESTAMP:
return is->dev.has_timestamp;
case PIPE_CAP_TEXTURE_MULTISAMPLE:
return false; /* TODO */
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
@ -650,6 +651,7 @@ init_dev(struct ilo_dev_info *dev, const struct intel_winsys_info *info)
dev->has_llc = info->has_llc;
dev->has_gen7_sol_reset = info->has_gen7_sol_reset;
dev->has_address_swizzling = info->has_address_swizzling;
dev->has_timestamp = info->has_timestamp;
/*
* From the Sandy Bridge PRM, volume 4 part 2, page 18:

11
src/gallium/winsys/intel/drm/intel_drm_winsys.c
View file

@ -99,6 +99,14 @@ test_address_swizzling(struct intel_winsys *winsys)
return (swizzle != I915_BIT_6_SWIZZLE_NONE);
}
static bool
test_reg_read(struct intel_winsys *winsys, uint32_t reg)
{
uint64_t dummy;
return !drm_intel_reg_read(winsys->bufmgr, reg, &dummy);
}
static bool
init_info(struct intel_winsys *winsys)
{
@ -130,6 +138,9 @@ init_info(struct intel_winsys *winsys)
get_param(winsys, I915_PARAM_HAS_LLC, &val);
info->has_llc = val;
/* test TIMESTAMP read */
info->has_timestamp = test_reg_read(winsys, 0x2358);
get_param(winsys, I915_PARAM_HAS_GEN7_SOL_RESET, &val);
info->has_gen7_sol_reset = val;

4
src/gallium/winsys/intel/intel_winsys.h
View file

@ -69,9 +69,13 @@ struct intel_bo;
struct intel_winsys_info {
int devid;
bool has_llc;
bool has_gen7_sol_reset;
bool has_address_swizzling;
/* valid registers for intel_winsys_read_reg() */
bool has_timestamp;
};
struct intel_winsys *