[PATCH 4/7] drm/amdgpu: clean up asic level reset for VI
Alex Deucher
alexdeucher at gmail.com
Fri Jan 15 10:52:01 PST 2016
Drop soft reset, always use pci config reset.
Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/vi.c | 385 +---------------------------------------
1 file changed, 4 insertions(+), 381 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index d5e02e1..48b2ca1 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -574,374 +574,12 @@ static int vi_read_register(struct amdgpu_device *adev, u32 se_num,
return -EINVAL;
}
-static void vi_print_gpu_status_regs(struct amdgpu_device *adev)
-{
- dev_info(adev->dev, " GRBM_STATUS=0x%08X\n",
- RREG32(mmGRBM_STATUS));
- dev_info(adev->dev, " GRBM_STATUS2=0x%08X\n",
- RREG32(mmGRBM_STATUS2));
- dev_info(adev->dev, " GRBM_STATUS_SE0=0x%08X\n",
- RREG32(mmGRBM_STATUS_SE0));
- dev_info(adev->dev, " GRBM_STATUS_SE1=0x%08X\n",
- RREG32(mmGRBM_STATUS_SE1));
- dev_info(adev->dev, " GRBM_STATUS_SE2=0x%08X\n",
- RREG32(mmGRBM_STATUS_SE2));
- dev_info(adev->dev, " GRBM_STATUS_SE3=0x%08X\n",
- RREG32(mmGRBM_STATUS_SE3));
- dev_info(adev->dev, " SRBM_STATUS=0x%08X\n",
- RREG32(mmSRBM_STATUS));
- dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
- RREG32(mmSRBM_STATUS2));
- dev_info(adev->dev, " SDMA0_STATUS_REG = 0x%08X\n",
- RREG32(mmSDMA0_STATUS_REG + SDMA0_REGISTER_OFFSET));
- if (adev->sdma.num_instances > 1) {
- dev_info(adev->dev, " SDMA1_STATUS_REG = 0x%08X\n",
- RREG32(mmSDMA0_STATUS_REG + SDMA1_REGISTER_OFFSET));
- }
- dev_info(adev->dev, " CP_STAT = 0x%08x\n", RREG32(mmCP_STAT));
- dev_info(adev->dev, " CP_STALLED_STAT1 = 0x%08x\n",
- RREG32(mmCP_STALLED_STAT1));
- dev_info(adev->dev, " CP_STALLED_STAT2 = 0x%08x\n",
- RREG32(mmCP_STALLED_STAT2));
- dev_info(adev->dev, " CP_STALLED_STAT3 = 0x%08x\n",
- RREG32(mmCP_STALLED_STAT3));
- dev_info(adev->dev, " CP_CPF_BUSY_STAT = 0x%08x\n",
- RREG32(mmCP_CPF_BUSY_STAT));
- dev_info(adev->dev, " CP_CPF_STALLED_STAT1 = 0x%08x\n",
- RREG32(mmCP_CPF_STALLED_STAT1));
- dev_info(adev->dev, " CP_CPF_STATUS = 0x%08x\n", RREG32(mmCP_CPF_STATUS));
- dev_info(adev->dev, " CP_CPC_BUSY_STAT = 0x%08x\n", RREG32(mmCP_CPC_BUSY_STAT));
- dev_info(adev->dev, " CP_CPC_STALLED_STAT1 = 0x%08x\n",
- RREG32(mmCP_CPC_STALLED_STAT1));
- dev_info(adev->dev, " CP_CPC_STATUS = 0x%08x\n", RREG32(mmCP_CPC_STATUS));
-}
-
-/**
- * vi_gpu_check_soft_reset - check which blocks are busy
- *
- * @adev: amdgpu_device pointer
- *
- * Check which blocks are busy and return the relevant reset
- * mask to be used by vi_gpu_soft_reset().
- * Returns a mask of the blocks to be reset.
- */
-u32 vi_gpu_check_soft_reset(struct amdgpu_device *adev)
-{
- u32 reset_mask = 0;
- u32 tmp;
-
- /* GRBM_STATUS */
- tmp = RREG32(mmGRBM_STATUS);
- if (tmp & (GRBM_STATUS__PA_BUSY_MASK | GRBM_STATUS__SC_BUSY_MASK |
- GRBM_STATUS__BCI_BUSY_MASK | GRBM_STATUS__SX_BUSY_MASK |
- GRBM_STATUS__TA_BUSY_MASK | GRBM_STATUS__VGT_BUSY_MASK |
- GRBM_STATUS__DB_BUSY_MASK | GRBM_STATUS__CB_BUSY_MASK |
- GRBM_STATUS__GDS_BUSY_MASK | GRBM_STATUS__SPI_BUSY_MASK |
- GRBM_STATUS__IA_BUSY_MASK | GRBM_STATUS__IA_BUSY_NO_DMA_MASK))
- reset_mask |= AMDGPU_RESET_GFX;
-
- if (tmp & (GRBM_STATUS__CP_BUSY_MASK | GRBM_STATUS__CP_COHERENCY_BUSY_MASK))
- reset_mask |= AMDGPU_RESET_CP;
-
- /* GRBM_STATUS2 */
- tmp = RREG32(mmGRBM_STATUS2);
- if (tmp & GRBM_STATUS2__RLC_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_RLC;
-
- if (tmp & (GRBM_STATUS2__CPF_BUSY_MASK |
- GRBM_STATUS2__CPC_BUSY_MASK |
- GRBM_STATUS2__CPG_BUSY_MASK))
- reset_mask |= AMDGPU_RESET_CP;
-
- /* SRBM_STATUS2 */
- tmp = RREG32(mmSRBM_STATUS2);
- if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_DMA;
-
- if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_DMA1;
-
- /* SRBM_STATUS */
- tmp = RREG32(mmSRBM_STATUS);
-
- if (tmp & SRBM_STATUS__IH_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_IH;
-
- if (tmp & SRBM_STATUS__SEM_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_SEM;
-
- if (tmp & SRBM_STATUS__GRBM_RQ_PENDING_MASK)
- reset_mask |= AMDGPU_RESET_GRBM;
-
- if (adev->asic_type != CHIP_TOPAZ) {
- if (tmp & (SRBM_STATUS__UVD_RQ_PENDING_MASK |
- SRBM_STATUS__UVD_BUSY_MASK))
- reset_mask |= AMDGPU_RESET_UVD;
- }
-
- if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_VMC;
-
- if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
- SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK))
- reset_mask |= AMDGPU_RESET_MC;
-
- /* SDMA0_STATUS_REG */
- tmp = RREG32(mmSDMA0_STATUS_REG + SDMA0_REGISTER_OFFSET);
- if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
- reset_mask |= AMDGPU_RESET_DMA;
-
- /* SDMA1_STATUS_REG */
- if (adev->sdma.num_instances > 1) {
- tmp = RREG32(mmSDMA0_STATUS_REG + SDMA1_REGISTER_OFFSET);
- if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
- reset_mask |= AMDGPU_RESET_DMA1;
- }
-#if 0
- /* VCE_STATUS */
- if (adev->asic_type != CHIP_TOPAZ) {
- tmp = RREG32(mmVCE_STATUS);
- if (tmp & VCE_STATUS__VCPU_REPORT_RB0_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_VCE;
- if (tmp & VCE_STATUS__VCPU_REPORT_RB1_BUSY_MASK)
- reset_mask |= AMDGPU_RESET_VCE1;
-
- }
-
- if (adev->asic_type != CHIP_TOPAZ) {
- if (amdgpu_display_is_display_hung(adev))
- reset_mask |= AMDGPU_RESET_DISPLAY;
- }
-#endif
-
- /* Skip MC reset as it's mostly likely not hung, just busy */
- if (reset_mask & AMDGPU_RESET_MC) {
- DRM_DEBUG("MC busy: 0x%08X, clearing.\n", reset_mask);
- reset_mask &= ~AMDGPU_RESET_MC;
- }
-
- return reset_mask;
-}
-
-/**
- * vi_gpu_soft_reset - soft reset GPU
- *
- * @adev: amdgpu_device pointer
- * @reset_mask: mask of which blocks to reset
- *
- * Soft reset the blocks specified in @reset_mask.
- */
-static void vi_gpu_soft_reset(struct amdgpu_device *adev, u32 reset_mask)
-{
- struct amdgpu_mode_mc_save save;
- u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
- u32 tmp;
-
- if (reset_mask == 0)
- return;
-
- dev_info(adev->dev, "GPU softreset: 0x%08X\n", reset_mask);
-
- vi_print_gpu_status_regs(adev);
- dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
- RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR));
- dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
- RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS));
-
- /* disable CG/PG */
-
- /* stop the rlc */
- //XXX
- //gfx_v8_0_rlc_stop(adev);
-
- /* Disable GFX parsing/prefetching */
- tmp = RREG32(mmCP_ME_CNTL);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, ME_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, PFP_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, CE_HALT, 1);
- WREG32(mmCP_ME_CNTL, tmp);
-
- /* Disable MEC parsing/prefetching */
- tmp = RREG32(mmCP_MEC_CNTL);
- tmp = REG_SET_FIELD(tmp, CP_MEC_CNTL, MEC_ME1_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_MEC_CNTL, MEC_ME2_HALT, 1);
- WREG32(mmCP_MEC_CNTL, tmp);
-
- if (reset_mask & AMDGPU_RESET_DMA) {
- /* sdma0 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
- tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 1);
- WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
- }
- if (reset_mask & AMDGPU_RESET_DMA1) {
- /* sdma1 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
- tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 1);
- WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
- }
-
- gmc_v8_0_mc_stop(adev, &save);
- if (amdgpu_asic_wait_for_mc_idle(adev)) {
- dev_warn(adev->dev, "Wait for MC idle timedout !\n");
- }
-
- if (reset_mask & (AMDGPU_RESET_GFX | AMDGPU_RESET_COMPUTE | AMDGPU_RESET_CP)) {
- grbm_soft_reset =
- REG_SET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_CP, 1);
- grbm_soft_reset =
- REG_SET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_GFX, 1);
- }
-
- if (reset_mask & AMDGPU_RESET_CP) {
- grbm_soft_reset =
- REG_SET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_CP, 1);
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_GRBM, 1);
- }
-
- if (reset_mask & AMDGPU_RESET_DMA)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA, 1);
-
- if (reset_mask & AMDGPU_RESET_DMA1)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SDMA1, 1);
-
- if (reset_mask & AMDGPU_RESET_DISPLAY)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_DC, 1);
-
- if (reset_mask & AMDGPU_RESET_RLC)
- grbm_soft_reset =
- REG_SET_FIELD(grbm_soft_reset, GRBM_SOFT_RESET, SOFT_RESET_RLC, 1);
-
- if (reset_mask & AMDGPU_RESET_SEM)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_SEM, 1);
-
- if (reset_mask & AMDGPU_RESET_IH)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_IH, 1);
-
- if (reset_mask & AMDGPU_RESET_GRBM)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_GRBM, 1);
-
- if (reset_mask & AMDGPU_RESET_VMC)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
-
- if (reset_mask & AMDGPU_RESET_UVD)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_UVD, 1);
-
- if (reset_mask & AMDGPU_RESET_VCE)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1);
-
- if (reset_mask & AMDGPU_RESET_VCE)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
-
- if (!(adev->flags & AMD_IS_APU)) {
- if (reset_mask & AMDGPU_RESET_MC)
- srbm_soft_reset =
- REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
- }
-
- if (grbm_soft_reset) {
- tmp = RREG32(mmGRBM_SOFT_RESET);
- tmp |= grbm_soft_reset;
- dev_info(adev->dev, "GRBM_SOFT_RESET=0x%08X\n", tmp);
- WREG32(mmGRBM_SOFT_RESET, tmp);
- tmp = RREG32(mmGRBM_SOFT_RESET);
-
- udelay(50);
-
- tmp &= ~grbm_soft_reset;
- WREG32(mmGRBM_SOFT_RESET, tmp);
- tmp = RREG32(mmGRBM_SOFT_RESET);
- }
-
- if (srbm_soft_reset) {
- tmp = RREG32(mmSRBM_SOFT_RESET);
- tmp |= srbm_soft_reset;
- dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
- WREG32(mmSRBM_SOFT_RESET, tmp);
- tmp = RREG32(mmSRBM_SOFT_RESET);
-
- udelay(50);
-
- tmp &= ~srbm_soft_reset;
- WREG32(mmSRBM_SOFT_RESET, tmp);
- tmp = RREG32(mmSRBM_SOFT_RESET);
- }
-
- /* Wait a little for things to settle down */
- udelay(50);
-
- gmc_v8_0_mc_resume(adev, &save);
- udelay(50);
-
- vi_print_gpu_status_regs(adev);
-}
-
static void vi_gpu_pci_config_reset(struct amdgpu_device *adev)
{
- struct amdgpu_mode_mc_save save;
- u32 tmp, i;
+ u32 i;
dev_info(adev->dev, "GPU pci config reset\n");
- /* disable dpm? */
-
- /* disable cg/pg */
-
- /* Disable GFX parsing/prefetching */
- tmp = RREG32(mmCP_ME_CNTL);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, ME_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, PFP_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_ME_CNTL, CE_HALT, 1);
- WREG32(mmCP_ME_CNTL, tmp);
-
- /* Disable MEC parsing/prefetching */
- tmp = RREG32(mmCP_MEC_CNTL);
- tmp = REG_SET_FIELD(tmp, CP_MEC_CNTL, MEC_ME1_HALT, 1);
- tmp = REG_SET_FIELD(tmp, CP_MEC_CNTL, MEC_ME2_HALT, 1);
- WREG32(mmCP_MEC_CNTL, tmp);
-
- /* Disable GFX parsing/prefetching */
- WREG32(mmCP_ME_CNTL, CP_ME_CNTL__ME_HALT_MASK |
- CP_ME_CNTL__PFP_HALT_MASK | CP_ME_CNTL__CE_HALT_MASK);
-
- /* Disable MEC parsing/prefetching */
- WREG32(mmCP_MEC_CNTL,
- CP_MEC_CNTL__MEC_ME1_HALT_MASK | CP_MEC_CNTL__MEC_ME2_HALT_MASK);
-
- /* sdma0 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
- tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 1);
- WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
-
- /* sdma1 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
- tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 1);
- WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
-
- /* XXX other engines? */
-
- /* halt the rlc, disable cp internal ints */
- //XXX
- //gfx_v8_0_rlc_stop(adev);
-
- udelay(50);
-
- /* disable mem access */
- gmc_v8_0_mc_stop(adev, &save);
- if (amdgpu_asic_wait_for_mc_idle(adev)) {
- dev_warn(adev->dev, "Wait for MC idle timed out !\n");
- }
-
/* disable BM */
pci_clear_master(adev->pdev);
/* reset */
@@ -981,26 +619,11 @@ static void vi_set_bios_scratch_engine_hung(struct amdgpu_device *adev, bool hun
*/
static int vi_asic_reset(struct amdgpu_device *adev)
{
- u32 reset_mask;
-
- reset_mask = vi_gpu_check_soft_reset(adev);
-
- if (reset_mask)
- vi_set_bios_scratch_engine_hung(adev, true);
-
- /* try soft reset */
- vi_gpu_soft_reset(adev, reset_mask);
-
- reset_mask = vi_gpu_check_soft_reset(adev);
-
- /* try pci config reset */
- if (reset_mask && amdgpu_hard_reset)
- vi_gpu_pci_config_reset(adev);
+ vi_set_bios_scratch_engine_hung(adev, true);
- reset_mask = vi_gpu_check_soft_reset(adev);
+ vi_gpu_pci_config_reset(adev);
- if (!reset_mask)
- vi_set_bios_scratch_engine_hung(adev, false);
+ vi_set_bios_scratch_engine_hung(adev, false);
return 0;
}
--
2.5.0
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