diff options
Diffstat (limited to 'src/gallium/winsys/r600/drm/r600_drm.c')
| -rw-r--r-- | src/gallium/winsys/r600/drm/r600_drm.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/winsys/r600/drm/r600_drm.c b/src/gallium/winsys/r600/drm/r600_drm.c index 6fc147fb6f..3c7e9aa449 100644 --- a/src/gallium/winsys/r600/drm/r600_drm.c +++ b/src/gallium/winsys/r600/drm/r600_drm.c @@ -41,6 +41,10 @@ #define RADEON_INFO_TILING_CONFIG 0x6 #endif +#ifndef RADEON_INFO_CLOCK_CRYSTAL_FREQ +#define RADEON_INFO_CLOCK_CRYSTAL_FREQ 0x9 +#endif + enum radeon_family r600_get_family(struct radeon *r600) { return r600->family; @@ -56,6 +60,11 @@ struct r600_tiling_info *r600_get_tiling_info(struct radeon *radeon) return &radeon->tiling_info; } +unsigned r600_get_clock_crystal_freq(struct radeon *radeon) +{ + return radeon->clock_crystal_freq; +} + static int radeon_get_device(struct radeon *radeon) { struct drm_radeon_info info; @@ -124,6 +133,24 @@ static int radeon_drm_get_tiling(struct radeon *radeon) return 0; } +static int radeon_get_clock_crystal_freq(struct radeon *radeon) +{ + struct drm_radeon_info info; + uint32_t clock_crystal_freq; + int r; + + radeon->device = 0; + info.request = RADEON_INFO_CLOCK_CRYSTAL_FREQ; + info.value = (uintptr_t)&clock_crystal_freq; + r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info, + sizeof(struct drm_radeon_info)); + if (r) + return r; + + radeon->clock_crystal_freq = clock_crystal_freq; + return 0; +} + static int radeon_init_fence(struct radeon *radeon) { radeon->fence = 1; @@ -205,6 +232,9 @@ static struct radeon *radeon_new(int fd, unsigned device) if (radeon_drm_get_tiling(radeon)) return NULL; } + /* get the GPU counter frequency, failure is non fatal */ + radeon_get_clock_crystal_freq(radeon); + radeon->bomgr = r600_bomgr_create(radeon, 1000000); if (radeon->bomgr == NULL) { return NULL; |