diff options
| author | Yong Zhao <Yong.Zhao@amd.com> | 2019-12-13 11:31:48 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-14 10:17:05 -0500 |
| commit | a434b94c5a6c56ea7078d43d932284005e08ed62 (patch) | |
| tree | 3ae31b5c61c08ee325ca557b3082553e42519c70 /drivers | |
| parent | 1fc636c9b3b251d065dbf04eb2293fb6de9fdcf9 (diff) | |
drm/amdkfd: Improve function get_sdma_rlc_reg_offset() (v2)
The SOC15_REG_OFFSET() macro needs to dereference adev->reg_offset[IP]
pointer, which is sometimes NULL when there are fewer than 8 sdma engines.
Avoid that by not initializing the array regardless.
v2: squash in warning fixes
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c | 68 |
1 files changed, 46 insertions, 22 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c index 3c119407dc34..86e71fd6ddea 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c @@ -71,32 +71,56 @@ static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev, unsigned int engine_id, unsigned int queue_id) { - uint32_t sdma_engine_reg_base[8] = { - SOC15_REG_OFFSET(SDMA0, 0, - mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA1, 0, - mmSDMA1_RLC0_RB_CNTL) - mmSDMA1_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA2, 0, - mmSDMA2_RLC0_RB_CNTL) - mmSDMA2_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA3, 0, - mmSDMA3_RLC0_RB_CNTL) - mmSDMA3_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA4, 0, - mmSDMA4_RLC0_RB_CNTL) - mmSDMA4_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA5, 0, - mmSDMA5_RLC0_RB_CNTL) - mmSDMA5_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA6, 0, - mmSDMA6_RLC0_RB_CNTL) - mmSDMA6_RLC0_RB_CNTL, - SOC15_REG_OFFSET(SDMA7, 0, - mmSDMA7_RLC0_RB_CNTL) - mmSDMA7_RLC0_RB_CNTL - }; - - uint32_t retval = sdma_engine_reg_base[engine_id] + uint32_t sdma_engine_reg_base = 0; + uint32_t sdma_rlc_reg_offset; + + switch (engine_id) { + default: + dev_warn(adev->dev, + "Invalid sdma engine id (%d), using engine id 0\n", + engine_id); + /* fall through */ + case 0: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0, + mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL; + break; + case 1: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0, + mmSDMA1_RLC0_RB_CNTL) - mmSDMA1_RLC0_RB_CNTL; + break; + case 2: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA2, 0, + mmSDMA2_RLC0_RB_CNTL) - mmSDMA2_RLC0_RB_CNTL; + break; + case 3: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA3, 0, + mmSDMA3_RLC0_RB_CNTL) - mmSDMA3_RLC0_RB_CNTL; + break; + case 4: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA4, 0, + mmSDMA4_RLC0_RB_CNTL) - mmSDMA4_RLC0_RB_CNTL; + break; + case 5: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA5, 0, + mmSDMA5_RLC0_RB_CNTL) - mmSDMA5_RLC0_RB_CNTL; + break; + case 6: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA6, 0, + mmSDMA6_RLC0_RB_CNTL) - mmSDMA6_RLC0_RB_CNTL; + break; + case 7: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA7, 0, + mmSDMA7_RLC0_RB_CNTL) - mmSDMA7_RLC0_RB_CNTL; + break; + } + + sdma_rlc_reg_offset = sdma_engine_reg_base + queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL); pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id, - queue_id, retval); + queue_id, sdma_rlc_reg_offset); - return retval; + return sdma_rlc_reg_offset; } static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd, |