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| author | Trigger Huang <Trigger.Huang@amd.com> | 2019-03-01 11:56:20 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:51 -0500 |
| commit | 6b1ff3ddc66d431a7a71f454aebf32e9757d2ac3 (patch) | |
| tree | 3bfb721e186e7af5e1b7cd35f3b99089cde2423b /drivers/gpu/drm/amd/amdgpu | |
| parent | 98cad2deaf557d63f2c84fae30afefd0e84840e9 (diff) | |
| download | linux-6b1ff3ddc66d431a7a71f454aebf32e9757d2ac3.tar.gz linux-6b1ff3ddc66d431a7a71f454aebf32e9757d2ac3.tar.bz2 linux-6b1ff3ddc66d431a7a71f454aebf32e9757d2ac3.zip | |
drm/amdgpu: add basic func for RLC program reg
New feature for RLC, some registers can be programmed by
RLC interface under SR-IOV VF:
WREG32_SOC15_RLC_SHADOW:
1, for GRBM_GFX_CNTL, firstly the new register value should be be
programmed to SCRATCH_REG2
1, for GRBM_GFX_INDEX, firstly the new register value should be be
programmed to SCRATCH_REG3
WREG32_RLC:
for registers supported to be programmed by RLC interface, the
following sequence should be used:
1, write the value to SCRATCH_REG0
2, write reg | 0x80000000 to SCRATCH_REG1
3, write 0x1 to RLC_SPARE_INT to notify RLC
4, polling SCRATCH_REG1 to check if finished
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/soc15_common.h | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15_common.h b/drivers/gpu/drm/amd/amdgpu/soc15_common.h index 49c262540940..c634606e64bd 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15_common.h +++ b/drivers/gpu/drm/amd/amdgpu/soc15_common.h @@ -89,6 +89,61 @@ (sram_sel << UVD_DPG_LMA_CTL__SRAM_SEL__SHIFT)); \ } while (0) -#endif +#define WREG32_RLC(reg, value) \ + do { \ + if (amdgpu_virt_support_rlc_prg_reg(adev)) { \ + uint32_t i = 0; \ + uint32_t retries = 50000; \ + uint32_t r0 = adev->reg_offset[GC_HWIP][0][mmSCRATCH_REG0_BASE_IDX] + mmSCRATCH_REG0; \ + uint32_t r1 = adev->reg_offset[GC_HWIP][0][mmSCRATCH_REG1_BASE_IDX] + mmSCRATCH_REG1; \ + uint32_t spare_int = adev->reg_offset[GC_HWIP][0][mmRLC_SPARE_INT_BASE_IDX] + mmRLC_SPARE_INT; \ + WREG32(r0, value); \ + WREG32(r1, (reg | 0x80000000)); \ + WREG32(spare_int, 0x1); \ + for (i = 0; i < retries; i++) { \ + u32 tmp = RREG32(r1); \ + if (!(tmp & 0x80000000)) \ + break; \ + udelay(10); \ + } \ + if (i >= retries) \ + pr_err("timeout: rlcg program reg:0x%05x failed !\n", reg); \ + } else { \ + WREG32(reg, value); \ + } \ + } while (0) + +#define WREG32_SOC15_RLC_SHADOW(ip, inst, reg, value) \ + do { \ + uint32_t target_reg = adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg;\ + if (amdgpu_virt_support_rlc_prg_reg(adev)) { \ + uint32_t r2 = adev->reg_offset[GC_HWIP][0][mmSCRATCH_REG1_BASE_IDX] + mmSCRATCH_REG2; \ + uint32_t r3 = adev->reg_offset[GC_HWIP][0][mmSCRATCH_REG1_BASE_IDX] + mmSCRATCH_REG3; \ + uint32_t grbm_cntl = adev->reg_offset[GC_HWIP][0][mmGRBM_GFX_CNTL_BASE_IDX] + mmGRBM_GFX_CNTL; \ + uint32_t grbm_idx = adev->reg_offset[GC_HWIP][0][mmGRBM_GFX_INDEX_BASE_IDX] + mmGRBM_GFX_INDEX; \ + if (target_reg == grbm_cntl) \ + WREG32(r2, value); \ + else if (target_reg == grbm_idx) \ + WREG32(r3, value); \ + WREG32(target_reg, value); \ + } else { \ + WREG32(target_reg, value); \ + } \ + } while (0) + +#define WREG32_SOC15_RLC(ip, inst, reg, value) \ + do { \ + uint32_t target_reg = adev->reg_offset[GC_HWIP][0][reg##_BASE_IDX] + reg;\ + WREG32_RLC(target_reg, value); \ + } while (0) + +#define WREG32_FIELD15_RLC(ip, idx, reg, field, val) \ + WREG32_RLC((adev->reg_offset[ip##_HWIP][idx][mm##reg##_BASE_IDX] + mm##reg), \ + (RREG32(adev->reg_offset[ip##_HWIP][idx][mm##reg##_BASE_IDX] + mm##reg) \ + & ~REG_FIELD_MASK(reg, field)) | (val) << REG_FIELD_SHIFT(reg, field)) + +#define WREG32_SOC15_OFFSET_RLC(ip, inst, reg, offset, value) \ + WREG32_RLC(((adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg) + offset), value) +#endif |