From: Ken Wang Date: Thu, 14 Sep 2017 16:25:19 +0800 Subject: drm/amdgpu: Add GPU reset functionality for Vega10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: 98512bb8c241f67f3a5cf0a121624b28a852db45 Patch-mainline: v4.15-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 V2 Signed-off-by: Ken Wang Reviewed-by: Alex Deucher Acked-by: Christian König Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 21 +++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 3 ++ drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 7 +++++ drivers/gpu/drm/amd/amdgpu/psp_v10_0.h | 2 + drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | 34 +++++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/psp_v3_1.h | 1 drivers/gpu/drm/amd/amdgpu/soc15.c | 27 +++++++++++------------ 8 files changed, 83 insertions(+), 15 deletions(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2581,7 +2581,8 @@ static bool amdgpu_need_full_reset(struc if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) || - (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)) { + (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) || + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) { if (adev->ip_blocks[i].status.hang) { DRM_INFO("Some block need full reset!\n"); return true; --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -62,6 +62,7 @@ static int psp_sw_init(void *handle) psp->cmd_submit = psp_v3_1_cmd_submit; psp->compare_sram_data = psp_v3_1_compare_sram_data; psp->smu_reload_quirk = psp_v3_1_smu_reload_quirk; + psp->mode1_reset = psp_v3_1_mode1_reset; break; case CHIP_RAVEN: psp->init_microcode = psp_v10_0_init_microcode; @@ -72,6 +73,7 @@ static int psp_sw_init(void *handle) psp->ring_destroy = psp_v10_0_ring_destroy; psp->cmd_submit = psp_v10_0_cmd_submit; psp->compare_sram_data = psp_v10_0_compare_sram_data; + psp->mode1_reset = psp_v10_0_mode1_reset; break; default: return -EINVAL; @@ -497,6 +499,22 @@ failed: return ret; } +static bool psp_check_reset(void* handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (adev->flags & AMD_IS_APU) + return true; + + return false; +} + +static int psp_reset(void* handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + return psp_mode1_reset(&adev->psp); +} + static bool psp_check_fw_loading_status(struct amdgpu_device *adev, enum AMDGPU_UCODE_ID ucode_type) { @@ -540,8 +558,9 @@ const struct amd_ip_funcs psp_ip_funcs = .suspend = psp_suspend, .resume = psp_resume, .is_idle = NULL, + .check_soft_reset = psp_check_reset, .wait_for_idle = NULL, - .soft_reset = NULL, + .soft_reset = psp_reset, .set_clockgating_state = psp_set_clockgating_state, .set_powergating_state = psp_set_powergating_state, }; --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -76,6 +76,7 @@ struct psp_context struct amdgpu_firmware_info *ucode, enum AMDGPU_UCODE_ID ucode_type); bool (*smu_reload_quirk)(struct psp_context *psp); + int (*mode1_reset)(struct psp_context *psp); /* fence buffer */ struct amdgpu_bo *fw_pri_bo; @@ -139,6 +140,8 @@ struct amdgpu_psp_funcs { ((psp)->bootloader_load_sos ? (psp)->bootloader_load_sos((psp)) : 0) #define psp_smu_reload_quirk(psp) \ ((psp)->smu_reload_quirk ? (psp)->smu_reload_quirk((psp)) : false) +#define psp_mode1_reset(psp) \ + ((psp)->mode1_reset ? (psp)->mode1_reset((psp)) : false) extern const struct amd_ip_funcs psp_ip_funcs; --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c @@ -407,3 +407,10 @@ bool psp_v10_0_compare_sram_data(struct return true; } + + +int psp_v10_0_mode1_reset(struct psp_context *psp) +{ + DRM_INFO("psp mode 1 reset not supported now! \n"); + return -EINVAL; +} --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h @@ -45,4 +45,6 @@ extern int psp_v10_0_cmd_submit(struct p extern bool psp_v10_0_compare_sram_data(struct psp_context *psp, struct amdgpu_firmware_info *ucode, enum AMDGPU_UCODE_ID ucode_type); + +extern int psp_v10_0_mode1_reset(struct psp_context *psp); #endif --- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c @@ -530,3 +530,37 @@ bool psp_v3_1_smu_reload_quirk(struct ps reg = RREG32_SOC15(NBIO, 0, mmPCIE_DATA2); return (reg & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) ? true : false; } + +int psp_v3_1_mode1_reset(struct psp_context *psp) +{ + int ret; + uint32_t offset; + struct amdgpu_device *adev = psp->adev; + + offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64); + + ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false); + + if (ret) { + DRM_INFO("psp is not working correctly before mode1 reset!\n"); + return -EINVAL; + } + + /*send the mode 1 reset command*/ + WREG32(offset, 0x70000); + + mdelay(1000); + + offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33); + + ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false); + + if (ret) { + DRM_INFO("psp mode 1 reset failed!\n"); + return -EINVAL; + } + + DRM_INFO("psp mode1 reset succeed \n"); + + return 0; +} --- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h +++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h @@ -53,4 +53,5 @@ extern bool psp_v3_1_compare_sram_data(s struct amdgpu_firmware_info *ucode, enum AMDGPU_UCODE_ID ucode_type); extern bool psp_v3_1_smu_reload_quirk(struct psp_context *psp); +extern int psp_v3_1_mode1_reset(struct psp_context *psp); #endif --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -407,18 +407,27 @@ static int soc15_read_register(struct am return -EINVAL; } -static void soc15_gpu_pci_config_reset(struct amdgpu_device *adev) +static int soc15_asic_reset(struct amdgpu_device *adev) { u32 i; - dev_info(adev->dev, "GPU pci config reset\n"); + amdgpu_atombios_scratch_regs_engine_hung(adev, true); + + dev_info(adev->dev, "GPU reset\n"); /* disable BM */ pci_clear_master(adev->pdev); - /* reset */ - amdgpu_pci_config_reset(adev); - udelay(100); + pci_save_state(adev->pdev); + + for (i = 0; i < AMDGPU_MAX_IP_NUM; i++) { + if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP){ + adev->ip_blocks[i].version->funcs->soft_reset((void *)adev); + break; + } + } + + pci_restore_state(adev->pdev); /* wait for asic to come out of reset */ for (i = 0; i < adev->usec_timeout; i++) { @@ -430,14 +439,6 @@ static void soc15_gpu_pci_config_reset(s udelay(1); } -} - -static int soc15_asic_reset(struct amdgpu_device *adev) -{ - amdgpu_atombios_scratch_regs_engine_hung(adev, true); - - soc15_gpu_pci_config_reset(adev); - amdgpu_atombios_scratch_regs_engine_hung(adev, false); return 0;