diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c index 39e17aae655f..f1ba36a094da 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c @@ -153,6 +153,9 @@ static int sdma_v5_2_init_microcode(struct amdgpu_device *adev) struct amdgpu_firmware_info *info = NULL; const struct common_firmware_header *header = NULL; + if (amdgpu_sriov_vf(adev) && (adev->asic_type == CHIP_SIENNA_CICHLID)) + return 0; + DRM_DEBUG("\n"); switch (adev->asic_type) { @@ -807,6 +810,37 @@ static int sdma_v5_2_load_microcode(struct amdgpu_device *adev) return 0; } +static int sdma_v5_2_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 grbm_soft_reset; + u32 tmp; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + grbm_soft_reset = REG_SET_FIELD(0, + GRBM_SOFT_RESET, SOFT_RESET_SDMA0, + 1); + grbm_soft_reset <<= i; + + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + tmp |= grbm_soft_reset; + DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + + udelay(50); + + tmp &= ~grbm_soft_reset; + WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp); + tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET); + + udelay(50); + } + + return 0; +} + /** * sdma_v5_2_start - setup and start the async dma engines * @@ -838,6 +872,7 @@ static int sdma_v5_2_start(struct amdgpu_device *adev) msleep(1000); } + sdma_v5_2_soft_reset(adev); /* unhalt the MEs */ sdma_v5_2_enable(adev, true); /* enable sdma ring preemption */ @@ -1366,13 +1401,6 @@ static int sdma_v5_2_wait_for_idle(void *handle) return -ETIMEDOUT; } -static int sdma_v5_2_soft_reset(void *handle) -{ - /* todo */ - - return 0; -} - static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring) { int i, r = 0; |