diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 371 |
1 files changed, 364 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index b6397d3229e1..13f0cdeb59c4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -523,6 +523,9 @@ static int amdgpu_virt_read_pf2vf_data(struct amdgpu_device *adev) adev->unique_id = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->uuid; + adev->virt.ras_en_caps.all = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->ras_en_caps.all; + adev->virt.ras_telemetry_en_caps.all = + ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->ras_telemetry_en_caps.all; break; default: dev_err(adev->dev, "invalid pf2vf version: 0x%x\n", pf2vf_info->version); @@ -611,10 +614,11 @@ static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev) vf2pf_info->decode_usage = 0; vf2pf_info->dummy_page_addr = (uint64_t)adev->dummy_page_addr; - vf2pf_info->mes_info_addr = (uint64_t)adev->mes.resource_1_gpu_addr; - - if (adev->mes.resource_1) { - vf2pf_info->mes_info_size = adev->mes.resource_1->tbo.base.size; + if (amdgpu_sriov_is_mes_info_enable(adev)) { + vf2pf_info->mes_info_addr = + (uint64_t)(adev->mes.resource_1_gpu_addr[0] + AMDGPU_GPU_PAGE_SIZE); + vf2pf_info->mes_info_size = + adev->mes.resource_1[0]->tbo.base.size - AMDGPU_GPU_PAGE_SIZE; } vf2pf_info->checksum = amd_sriov_msg_checksum( @@ -703,6 +707,8 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev) adev->virt.fw_reserve.p_vf2pf = (struct amd_sriov_msg_vf2pf_info_header *) (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10)); + adev->virt.fw_reserve.ras_telemetry = + (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB << 10)); } else if (adev->mman.drv_vram_usage_va) { adev->virt.fw_reserve.p_pf2vf = (struct amd_sriov_msg_pf2vf_info_header *) @@ -710,6 +716,8 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev) adev->virt.fw_reserve.p_vf2pf = (struct amd_sriov_msg_vf2pf_info_header *) (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10)); + adev->virt.fw_reserve.ras_telemetry = + (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB << 10)); } amdgpu_virt_read_pf2vf_data(adev); @@ -732,7 +740,7 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev) } } -void amdgpu_detect_virtualization(struct amdgpu_device *adev) +static u32 amdgpu_virt_init_detect_asic(struct amdgpu_device *adev) { uint32_t reg; @@ -768,8 +776,17 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; } + return reg; +} + +static bool amdgpu_virt_init_req_data(struct amdgpu_device *adev, u32 reg) +{ + bool is_sriov = false; + /* we have the ability to check now */ if (amdgpu_sriov_vf(adev)) { + is_sriov = true; + switch (adev->asic_type) { case CHIP_TONGA: case CHIP_FIJI: @@ -798,10 +815,39 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev) amdgpu_virt_request_init_data(adev); break; default: /* other chip doesn't support SRIOV */ + is_sriov = false; DRM_ERROR("Unknown asic type: %d!\n", adev->asic_type); break; } } + + return is_sriov; +} + +static void amdgpu_virt_init_ras(struct amdgpu_device *adev) +{ + ratelimit_state_init(&adev->virt.ras.ras_error_cnt_rs, 5 * HZ, 1); + ratelimit_state_init(&adev->virt.ras.ras_cper_dump_rs, 5 * HZ, 1); + + ratelimit_set_flags(&adev->virt.ras.ras_error_cnt_rs, + RATELIMIT_MSG_ON_RELEASE); + ratelimit_set_flags(&adev->virt.ras.ras_cper_dump_rs, + RATELIMIT_MSG_ON_RELEASE); + + mutex_init(&adev->virt.ras.ras_telemetry_mutex); + + adev->virt.ras.cper_rptr = 0; +} + +void amdgpu_virt_init(struct amdgpu_device *adev) +{ + bool is_sriov = false; + uint32_t reg = amdgpu_virt_init_detect_asic(adev); + + is_sriov = amdgpu_virt_init_req_data(adev, reg); + + if (is_sriov) + amdgpu_virt_init_ras(adev); } static bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev) @@ -1010,6 +1056,7 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f void *scratch_reg2; void *scratch_reg3; void *spare_int; + unsigned long flags; if (!adev->gfx.rlc.rlcg_reg_access_supported) { dev_err(adev->dev, @@ -1031,7 +1078,7 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f scratch_reg2 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg2; scratch_reg3 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg3; - mutex_lock(&adev->virt.rlcg_reg_lock); + spin_lock_irqsave(&adev->virt.rlcg_reg_lock, flags); if (reg_access_ctrl->spare_int) spare_int = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->spare_int; @@ -1090,7 +1137,7 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f ret = readl(scratch_reg0); - mutex_unlock(&adev->virt.rlcg_reg_lock); + spin_unlock_irqrestore(&adev->virt.rlcg_reg_lock, flags); return ret; } @@ -1144,3 +1191,313 @@ bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev) return xnack_mode; } + +bool amdgpu_virt_get_ras_capability(struct amdgpu_device *adev) +{ + struct amdgpu_ras *con = amdgpu_ras_get_context(adev); + + if (!amdgpu_sriov_ras_caps_en(adev)) + return false; + + if (adev->virt.ras_en_caps.bits.block_umc) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__UMC); + if (adev->virt.ras_en_caps.bits.block_sdma) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__SDMA); + if (adev->virt.ras_en_caps.bits.block_gfx) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__GFX); + if (adev->virt.ras_en_caps.bits.block_mmhub) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__MMHUB); + if (adev->virt.ras_en_caps.bits.block_athub) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__ATHUB); + if (adev->virt.ras_en_caps.bits.block_pcie_bif) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__PCIE_BIF); + if (adev->virt.ras_en_caps.bits.block_hdp) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__HDP); + if (adev->virt.ras_en_caps.bits.block_xgmi_wafl) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__XGMI_WAFL); + if (adev->virt.ras_en_caps.bits.block_df) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__DF); + if (adev->virt.ras_en_caps.bits.block_smn) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__SMN); + if (adev->virt.ras_en_caps.bits.block_sem) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__SEM); + if (adev->virt.ras_en_caps.bits.block_mp0) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__MP0); + if (adev->virt.ras_en_caps.bits.block_mp1) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__MP1); + if (adev->virt.ras_en_caps.bits.block_fuse) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__FUSE); + if (adev->virt.ras_en_caps.bits.block_mca) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__MCA); + if (adev->virt.ras_en_caps.bits.block_vcn) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__VCN); + if (adev->virt.ras_en_caps.bits.block_jpeg) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__JPEG); + if (adev->virt.ras_en_caps.bits.block_ih) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__IH); + if (adev->virt.ras_en_caps.bits.block_mpio) + adev->ras_hw_enabled |= BIT(AMDGPU_RAS_BLOCK__MPIO); + + if (adev->virt.ras_en_caps.bits.poison_propogation_mode) + con->poison_supported = true; /* Poison is handled by host */ + + return true; +} + +static inline enum amd_sriov_ras_telemetry_gpu_block +amdgpu_ras_block_to_sriov(struct amdgpu_device *adev, enum amdgpu_ras_block block) { + switch (block) { + case AMDGPU_RAS_BLOCK__UMC: + return RAS_TELEMETRY_GPU_BLOCK_UMC; + case AMDGPU_RAS_BLOCK__SDMA: + return RAS_TELEMETRY_GPU_BLOCK_SDMA; + case AMDGPU_RAS_BLOCK__GFX: + return RAS_TELEMETRY_GPU_BLOCK_GFX; + case AMDGPU_RAS_BLOCK__MMHUB: + return RAS_TELEMETRY_GPU_BLOCK_MMHUB; + case AMDGPU_RAS_BLOCK__ATHUB: + return RAS_TELEMETRY_GPU_BLOCK_ATHUB; + case AMDGPU_RAS_BLOCK__PCIE_BIF: + return RAS_TELEMETRY_GPU_BLOCK_PCIE_BIF; + case AMDGPU_RAS_BLOCK__HDP: + return RAS_TELEMETRY_GPU_BLOCK_HDP; + case AMDGPU_RAS_BLOCK__XGMI_WAFL: + return RAS_TELEMETRY_GPU_BLOCK_XGMI_WAFL; + case AMDGPU_RAS_BLOCK__DF: + return RAS_TELEMETRY_GPU_BLOCK_DF; + case AMDGPU_RAS_BLOCK__SMN: + return RAS_TELEMETRY_GPU_BLOCK_SMN; + case AMDGPU_RAS_BLOCK__SEM: + return RAS_TELEMETRY_GPU_BLOCK_SEM; + case AMDGPU_RAS_BLOCK__MP0: + return RAS_TELEMETRY_GPU_BLOCK_MP0; + case AMDGPU_RAS_BLOCK__MP1: + return RAS_TELEMETRY_GPU_BLOCK_MP1; + case AMDGPU_RAS_BLOCK__FUSE: + return RAS_TELEMETRY_GPU_BLOCK_FUSE; + case AMDGPU_RAS_BLOCK__MCA: + return RAS_TELEMETRY_GPU_BLOCK_MCA; + case AMDGPU_RAS_BLOCK__VCN: + return RAS_TELEMETRY_GPU_BLOCK_VCN; + case AMDGPU_RAS_BLOCK__JPEG: + return RAS_TELEMETRY_GPU_BLOCK_JPEG; + case AMDGPU_RAS_BLOCK__IH: + return RAS_TELEMETRY_GPU_BLOCK_IH; + case AMDGPU_RAS_BLOCK__MPIO: + return RAS_TELEMETRY_GPU_BLOCK_MPIO; + default: + DRM_WARN_ONCE("Unsupported SRIOV RAS telemetry block 0x%x\n", + block); + return RAS_TELEMETRY_GPU_BLOCK_COUNT; + } +} + +static int amdgpu_virt_cache_host_error_counts(struct amdgpu_device *adev, + struct amdsriov_ras_telemetry *host_telemetry) +{ + struct amd_sriov_ras_telemetry_error_count *tmp = NULL; + uint32_t checksum, used_size; + + checksum = host_telemetry->header.checksum; + used_size = host_telemetry->header.used_size; + + if (used_size > (AMD_SRIOV_RAS_TELEMETRY_SIZE_KB << 10)) + return 0; + + tmp = kmemdup(&host_telemetry->body.error_count, used_size, GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + if (checksum != amd_sriov_msg_checksum(tmp, used_size, 0, 0)) + goto out; + + memcpy(&adev->virt.count_cache, tmp, + min(used_size, sizeof(adev->virt.count_cache))); +out: + kfree(tmp); + + return 0; +} + +static int amdgpu_virt_req_ras_err_count_internal(struct amdgpu_device *adev, bool force_update) +{ + struct amdgpu_virt *virt = &adev->virt; + + if (!virt->ops || !virt->ops->req_ras_err_count) + return -EOPNOTSUPP; + + /* Host allows 15 ras telemetry requests per 60 seconds. Afterwhich, the Host + * will ignore incoming guest messages. Ratelimit the guest messages to + * prevent guest self DOS. + */ + if (__ratelimit(&virt->ras.ras_error_cnt_rs) || force_update) { + mutex_lock(&virt->ras.ras_telemetry_mutex); + if (!virt->ops->req_ras_err_count(adev)) + amdgpu_virt_cache_host_error_counts(adev, + virt->fw_reserve.ras_telemetry); + mutex_unlock(&virt->ras.ras_telemetry_mutex); + } + + return 0; +} + +/* Bypass ACA interface and query ECC counts directly from host */ +int amdgpu_virt_req_ras_err_count(struct amdgpu_device *adev, enum amdgpu_ras_block block, + struct ras_err_data *err_data) +{ + enum amd_sriov_ras_telemetry_gpu_block sriov_block; + + sriov_block = amdgpu_ras_block_to_sriov(adev, block); + + if (sriov_block >= RAS_TELEMETRY_GPU_BLOCK_COUNT || + !amdgpu_sriov_ras_telemetry_block_en(adev, sriov_block)) + return -EOPNOTSUPP; + + /* Host Access may be lost during reset, just return last cached data. */ + if (down_read_trylock(&adev->reset_domain->sem)) { + amdgpu_virt_req_ras_err_count_internal(adev, false); + up_read(&adev->reset_domain->sem); + } + + err_data->ue_count = adev->virt.count_cache.block[sriov_block].ue_count; + err_data->ce_count = adev->virt.count_cache.block[sriov_block].ce_count; + err_data->de_count = adev->virt.count_cache.block[sriov_block].de_count; + + return 0; +} + +static int +amdgpu_virt_write_cpers_to_ring(struct amdgpu_device *adev, + struct amdsriov_ras_telemetry *host_telemetry, + u32 *more) +{ + struct amd_sriov_ras_cper_dump *cper_dump = NULL; + struct cper_hdr *entry = NULL; + struct amdgpu_ring *ring = &adev->cper.ring_buf; + uint32_t checksum, used_size, i; + int ret = 0; + + checksum = host_telemetry->header.checksum; + used_size = host_telemetry->header.used_size; + + if (used_size > (AMD_SRIOV_RAS_TELEMETRY_SIZE_KB << 10)) + return -EINVAL; + + cper_dump = kmemdup(&host_telemetry->body.cper_dump, used_size, GFP_KERNEL); + if (!cper_dump) + return -ENOMEM; + + if (checksum != amd_sriov_msg_checksum(cper_dump, used_size, 0, 0)) { + ret = -EINVAL; + goto out; + } + + *more = cper_dump->more; + + if (cper_dump->wptr < adev->virt.ras.cper_rptr) { + dev_warn( + adev->dev, + "guest specified rptr that was too high! guest rptr: 0x%llx, host rptr: 0x%llx\n", + adev->virt.ras.cper_rptr, cper_dump->wptr); + + adev->virt.ras.cper_rptr = cper_dump->wptr; + goto out; + } + + entry = (struct cper_hdr *)&cper_dump->buf[0]; + + for (i = 0; i < cper_dump->count; i++) { + amdgpu_cper_ring_write(ring, entry, entry->record_length); + entry = (struct cper_hdr *)((char *)entry + + entry->record_length); + } + + if (cper_dump->overflow_count) + dev_warn(adev->dev, + "host reported CPER overflow of 0x%llx entries!\n", + cper_dump->overflow_count); + + adev->virt.ras.cper_rptr = cper_dump->wptr; +out: + kfree(cper_dump); + + return ret; +} + +static int amdgpu_virt_req_ras_cper_dump_internal(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + int ret = 0; + uint32_t more = 0; + + if (!virt->ops || !virt->ops->req_ras_cper_dump) + return -EOPNOTSUPP; + + do { + if (!virt->ops->req_ras_cper_dump(adev, virt->ras.cper_rptr)) + ret = amdgpu_virt_write_cpers_to_ring( + adev, virt->fw_reserve.ras_telemetry, &more); + else + ret = 0; + } while (more && !ret); + + return ret; +} + +int amdgpu_virt_req_ras_cper_dump(struct amdgpu_device *adev, bool force_update) +{ + struct amdgpu_virt *virt = &adev->virt; + int ret = 0; + + if (!amdgpu_sriov_ras_cper_en(adev)) + return -EOPNOTSUPP; + + if ((__ratelimit(&virt->ras.ras_cper_dump_rs) || force_update) && + down_read_trylock(&adev->reset_domain->sem)) { + mutex_lock(&virt->ras.ras_telemetry_mutex); + ret = amdgpu_virt_req_ras_cper_dump_internal(adev); + mutex_unlock(&virt->ras.ras_telemetry_mutex); + up_read(&adev->reset_domain->sem); + } + + return ret; +} + +int amdgpu_virt_ras_telemetry_post_reset(struct amdgpu_device *adev) +{ + unsigned long ue_count, ce_count; + + if (amdgpu_sriov_ras_telemetry_en(adev)) { + amdgpu_virt_req_ras_err_count_internal(adev, true); + amdgpu_ras_query_error_count(adev, &ce_count, &ue_count, NULL); + } + + return 0; +} + +bool amdgpu_virt_ras_telemetry_block_en(struct amdgpu_device *adev, + enum amdgpu_ras_block block) +{ + enum amd_sriov_ras_telemetry_gpu_block sriov_block; + + sriov_block = amdgpu_ras_block_to_sriov(adev, block); + + if (sriov_block >= RAS_TELEMETRY_GPU_BLOCK_COUNT || + !amdgpu_sriov_ras_telemetry_block_en(adev, sriov_block)) + return false; + + return true; +} + +/* + * amdgpu_virt_request_bad_pages() - request bad pages + * @adev: amdgpu device. + * Send command to GPU hypervisor to write new bad pages into the shared PF2VF region + */ +void amdgpu_virt_request_bad_pages(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + + if (virt->ops && virt->ops->req_bad_pages) + virt->ops->req_bad_pages(adev); +} |