diff options
| author | Monk Liu <Monk.Liu@amd.com> | 2017-12-29 17:06:41 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-28 15:19:03 -0500 |
| commit | f812dec57d55719f5fe1f6fce193561015369363 (patch) | |
| tree | a645eb8482c1ed6b32f005fc17d6177de55a4e35 /drivers | |
| parent | 8d333fe0ad9dcb9651b9b450424a960bac040f96 (diff) | |
drm/amdgpu: fix&cleanups for wb_clear
fix:
should do right shift on wb before clearing
cleanups:
1,should memset all wb buffer
2,set max wb number to 128 (total 4KB) is big enough
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index d5a2eefd6c3e..74edba18b159 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1156,7 +1156,7 @@ static inline void amdgpu_set_ib_value(struct amdgpu_cs_parser *p, /* * Writeback */ -#define AMDGPU_MAX_WB 512 /* Reserve at most 512 WB slots for amdgpu-owned rings. */ +#define AMDGPU_MAX_WB 128 /* Reserve at most 128 WB slots for amdgpu-owned rings. */ struct amdgpu_wb { struct amdgpu_bo *wb_obj; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d9f3d54e228f..af1b879a9ee9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -492,7 +492,7 @@ static int amdgpu_device_wb_init(struct amdgpu_device *adev) memset(&adev->wb.used, 0, sizeof(adev->wb.used)); /* clear wb memory */ - memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t)); + memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t) * 8); } return 0; @@ -530,8 +530,9 @@ int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb) */ void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb) { + wb >>= 3; if (wb < adev->wb.num_wb) - __clear_bit(wb >> 3, adev->wb.used); + __clear_bit(wb, adev->wb.used); } /** |