From 61166f8fe717ca90f9454a782df6357382d02450 Mon Sep 17 00:00:00 2001 From: Trigger Huang Date: Fri, 1 Mar 2019 11:56:20 +0800 Subject: [PATCH 1924/2940] 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 Reviewed-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/soc15_common.h | 57 ++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-) 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 -- 2.17.1