diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 1685 |
1 files changed, 1572 insertions, 113 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index f3b38c9e04ca..47a6ce4fdc74 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -23,9 +23,38 @@ #include <linux/module.h> +#ifdef CONFIG_X86 +#include <asm/hypervisor.h> +#endif + #include <drm/drm_drv.h> +#include <xen/xen.h> #include "amdgpu.h" +#include "amdgpu_ras.h" +#include "amdgpu_reset.h" +#include "amdgpu_dpm.h" +#include "vi.h" +#include "soc15.h" +#include "nv.h" + +#define POPULATE_UCODE_INFO(vf2pf_info, ucode, ver) \ + do { \ + vf2pf_info->ucode_info[ucode].id = ucode; \ + vf2pf_info->ucode_info[ucode].version = ver; \ + } while (0) + +#define mmRCC_CONFIG_MEMSIZE 0xde3 + +const char *amdgpu_virt_dynamic_crit_table_name[] = { + "IP DISCOVERY", + "VBIOS IMG", + "RAS TELEMETRY", + "DATA EXCHANGE", + "BAD PAGE INFO", + "INIT HEADER", + "LAST", +}; bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev) { @@ -37,64 +66,28 @@ bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev) void amdgpu_virt_init_setting(struct amdgpu_device *adev) { + struct drm_device *ddev = adev_to_drm(adev); + /* enable virtual display */ - if (adev->mode_info.num_crtc == 0) - adev->mode_info.num_crtc = 1; - adev->enable_virtual_display = true; - adev->ddev->driver->driver_features &= ~DRIVER_ATOMIC; + if (adev->asic_type != CHIP_ALDEBARAN && + adev->asic_type != CHIP_ARCTURUS && + ((adev->pdev->class >> 8) != PCI_CLASS_ACCELERATOR_PROCESSING)) { + if (adev->mode_info.num_crtc == 0) + adev->mode_info.num_crtc = 1; + adev->enable_virtual_display = true; + } + ddev->driver_features &= ~DRIVER_ATOMIC; adev->cg_flags = 0; adev->pg_flags = 0; -} - -void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, - uint32_t reg0, uint32_t reg1, - uint32_t ref, uint32_t mask) -{ - struct amdgpu_kiq *kiq = &adev->gfx.kiq; - struct amdgpu_ring *ring = &kiq->ring; - signed long r, cnt = 0; - unsigned long flags; - uint32_t seq; - - spin_lock_irqsave(&kiq->ring_lock, flags); - amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_reg_write_reg_wait(ring, reg0, reg1, - ref, mask); - r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT); - if (r) - goto failed_undo; - - amdgpu_ring_commit(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); - - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - - /* don't wait anymore for IRQ context */ - if (r < 1 && in_interrupt()) - goto failed_kiq; - - might_sleep(); - while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) { - msleep(MAX_KIQ_REG_BAILOUT_INTERVAL); - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - } - - if (cnt > MAX_KIQ_REG_TRY) - goto failed_kiq; - - return; - -failed_undo: - amdgpu_ring_undo(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); -failed_kiq: - pr_err("failed to write reg %x wait reg %x\n", reg0, reg1); + /* Reduce kcq number to 2 to reduce latency */ + if (amdgpu_num_kcq == -1) + amdgpu_num_kcq = 2; } /** * amdgpu_virt_request_full_gpu() - request full gpu access - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * @init: is driver init time. * When start to init/fini driver, first need to request full gpu access. * Return: Zero if request success, otherwise will return error. @@ -106,8 +99,10 @@ int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init) if (virt->ops && virt->ops->req_full_gpu) { r = virt->ops->req_full_gpu(adev, init); - if (r) + if (r) { + adev->no_hw_access = true; return r; + } adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; } @@ -117,7 +112,7 @@ int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init) /** * amdgpu_virt_release_full_gpu() - release full gpu access - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * @init: is driver init time. * When finishing driver init/fini, need to release full gpu access. * Return: Zero if release success, otherwise will returen error. @@ -139,7 +134,7 @@ int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init) /** * amdgpu_virt_reset_gpu() - reset gpu - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * Send reset command to GPU hypervisor to reset GPU that VM is using * Return: Zero if reset success, otherwise will return error. */ @@ -167,14 +162,29 @@ void amdgpu_virt_request_init_data(struct amdgpu_device *adev) virt->ops->req_init_data(adev); if (adev->virt.req_init_data_ver > 0) - DRM_INFO("host supports REQ_INIT_DATA handshake\n"); + dev_info(adev->dev, "host supports REQ_INIT_DATA handshake of critical_region_version %d\n", + adev->virt.req_init_data_ver); else - DRM_WARN("host doesn't support REQ_INIT_DATA handshake\n"); + dev_warn(adev->dev, "host doesn't support REQ_INIT_DATA handshake\n"); +} + +/** + * amdgpu_virt_ready_to_reset() - send ready to reset to host + * @adev: amdgpu device. + * Send ready to reset message to GPU hypervisor to signal we have stopped GPU + * activity and is ready for host FLR + */ +void amdgpu_virt_ready_to_reset(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + + if (virt->ops && virt->ops->reset_gpu) + virt->ops->ready_to_reset(adev); } /** * amdgpu_virt_wait_reset() - wait for reset gpu completed - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * Wait for GPU reset completed. * Return: Zero if reset success, otherwise will return error. */ @@ -190,7 +200,7 @@ int amdgpu_virt_wait_reset(struct amdgpu_device *adev) /** * amdgpu_virt_alloc_mm_table() - alloc memory for mm table - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * MM table is used by UVD and VCE for its initialization * Return: Zero if allocate success. */ @@ -202,17 +212,18 @@ int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev) return 0; r = amdgpu_bo_create_kernel(adev, PAGE_SIZE, PAGE_SIZE, - AMDGPU_GEM_DOMAIN_VRAM, + AMDGPU_GEM_DOMAIN_VRAM | + AMDGPU_GEM_DOMAIN_GTT, &adev->virt.mm_table.bo, &adev->virt.mm_table.gpu_addr, (void *)&adev->virt.mm_table.cpu_addr); if (r) { - DRM_ERROR("failed to alloc mm table and error = %d.\n", r); + dev_err(adev->dev, "failed to alloc mm table and error = %d.\n", r); return r; } memset((void *)adev->virt.mm_table.cpu_addr, 0, PAGE_SIZE); - DRM_INFO("MM table gpu addr = 0x%llx, cpu addr = %p.\n", + dev_info(adev->dev, "MM table gpu addr = 0x%llx, cpu addr = %p.\n", adev->virt.mm_table.gpu_addr, adev->virt.mm_table.cpu_addr); return 0; @@ -220,7 +231,7 @@ int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev) /** * amdgpu_virt_free_mm_table() - free mm table memory - * @amdgpu: amdgpu device. + * @adev: amdgpu device. * Free MM table memory */ void amdgpu_virt_free_mm_table(struct amdgpu_device *adev) @@ -234,11 +245,27 @@ void amdgpu_virt_free_mm_table(struct amdgpu_device *adev) adev->virt.mm_table.gpu_addr = 0; } +/** + * amdgpu_virt_rcvd_ras_interrupt() - receive ras interrupt + * @adev: amdgpu device. + * Check whether host sent RAS error message + * Return: true if found, otherwise false + */ +bool amdgpu_virt_rcvd_ras_interrupt(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + + if (!virt->ops || !virt->ops->rcvd_ras_intr) + return false; + + return virt->ops->rcvd_ras_intr(adev); +} -int amdgpu_virt_fw_reserve_get_checksum(void *obj, - unsigned long obj_size, - unsigned int key, - unsigned int chksum) + +unsigned int amd_sriov_msg_checksum(void *obj, + unsigned long obj_size, + unsigned int key, + unsigned int checksum) { unsigned int ret = key; unsigned long i = 0; @@ -248,67 +275,551 @@ int amdgpu_virt_fw_reserve_get_checksum(void *obj, /* calculate checksum */ for (i = 0; i < obj_size; ++i) ret += *(pos + i); - /* minus the chksum itself */ - pos = (char *)&chksum; - for (i = 0; i < sizeof(chksum); ++i) + /* minus the checksum itself */ + pos = (char *)&checksum; + for (i = 0; i < sizeof(checksum); ++i) ret -= *(pos + i); return ret; } -void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev) +static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev) { - uint32_t pf2vf_size = 0; - uint32_t checksum = 0; + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data **data = &virt->virt_eh_data; + /* GPU will be marked bad on host if bp count more then 10, + * so alloc 512 is enough. + */ + unsigned int align_space = 512; + void *bps = NULL; + struct amdgpu_bo **bps_bo = NULL; + + *data = kmalloc(sizeof(struct amdgpu_virt_ras_err_handler_data), GFP_KERNEL); + if (!*data) + goto data_failure; + + bps = kmalloc_array(align_space, sizeof(*(*data)->bps), GFP_KERNEL); + if (!bps) + goto bps_failure; + + bps_bo = kmalloc_array(align_space, sizeof(*(*data)->bps_bo), GFP_KERNEL); + if (!bps_bo) + goto bps_bo_failure; + + (*data)->bps = bps; + (*data)->bps_bo = bps_bo; + (*data)->count = 0; + (*data)->last_reserved = 0; + + virt->ras_init_done = true; + + return 0; + +bps_bo_failure: + kfree(bps); +bps_failure: + kfree(*data); +data_failure: + return -ENOMEM; +} + +static void amdgpu_virt_ras_release_bp(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + struct amdgpu_bo *bo; + int i; + + if (!data) + return; + + for (i = data->last_reserved - 1; i >= 0; i--) { + bo = data->bps_bo[i]; + if (bo) { + amdgpu_bo_free_kernel(&bo, NULL, NULL); + data->bps_bo[i] = bo; + } + data->last_reserved = i; + } +} + +void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + + virt->ras_init_done = false; + + if (!data) + return; + + amdgpu_virt_ras_release_bp(adev); + + kfree(data->bps); + kfree(data->bps_bo); + kfree(data); + virt->virt_eh_data = NULL; +} + +static void amdgpu_virt_ras_add_bps(struct amdgpu_device *adev, + struct eeprom_table_record *bps, int pages) +{ + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + + if (!data) + return; + + memcpy(&data->bps[data->count], bps, pages * sizeof(*data->bps)); + data->count += pages; +} + +static void amdgpu_virt_ras_reserve_bps(struct amdgpu_device *adev) +{ + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr; + struct ttm_resource_manager *man = &mgr->manager; + struct amdgpu_bo *bo = NULL; + uint64_t bp; + int i; + + if (!data) + return; + + for (i = data->last_reserved; i < data->count; i++) { + bp = data->bps[i].retired_page; + + /* There are two cases of reserve error should be ignored: + * 1) a ras bad page has been allocated (used by someone); + * 2) a ras bad page has been reserved (duplicate error injection + * for one page); + */ + if (ttm_resource_manager_used(man)) { + amdgpu_vram_mgr_reserve_range(&adev->mman.vram_mgr, + bp << AMDGPU_GPU_PAGE_SHIFT, + AMDGPU_GPU_PAGE_SIZE); + data->bps_bo[i] = NULL; + } else { + if (amdgpu_bo_create_kernel_at(adev, bp << AMDGPU_GPU_PAGE_SHIFT, + AMDGPU_GPU_PAGE_SIZE, + &bo, NULL)) + dev_dbg(adev->dev, + "RAS WARN: reserve vram for retired page %llx fail\n", + bp); + data->bps_bo[i] = bo; + } + data->last_reserved = i + 1; + bo = NULL; + } +} + +static bool amdgpu_virt_ras_check_bad_page(struct amdgpu_device *adev, + uint64_t retired_page) +{ + struct amdgpu_virt *virt = &adev->virt; + struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + int i; + + if (!data) + return true; + + for (i = 0; i < data->count; i++) + if (retired_page == data->bps[i].retired_page) + return true; + + return false; +} + +static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev, + uint64_t bp_block_offset, uint32_t bp_block_size) +{ + struct eeprom_table_record bp; + uint64_t retired_page; + uint32_t bp_idx, bp_cnt; + void *vram_usage_va = NULL; + + if (adev->mman.fw_vram_usage_va) + vram_usage_va = adev->mman.fw_vram_usage_va; + else + vram_usage_va = adev->mman.drv_vram_usage_va; + + memset(&bp, 0, sizeof(bp)); + + if (bp_block_size) { + bp_cnt = bp_block_size / sizeof(uint64_t); + for (bp_idx = 0; bp_idx < bp_cnt; bp_idx++) { + retired_page = *(uint64_t *)(vram_usage_va + + bp_block_offset + bp_idx * sizeof(uint64_t)); + bp.retired_page = retired_page; + + if (amdgpu_virt_ras_check_bad_page(adev, retired_page)) + continue; + + amdgpu_virt_ras_add_bps(adev, &bp, 1); + + amdgpu_virt_ras_reserve_bps(adev); + } + } +} + +static int amdgpu_virt_read_pf2vf_data(struct amdgpu_device *adev) +{ + struct amd_sriov_msg_pf2vf_info_header *pf2vf_info = adev->virt.fw_reserve.p_pf2vf; + uint32_t checksum; uint32_t checkval; - char *str; + + uint32_t i; + uint32_t tmp; + + if (adev->virt.fw_reserve.p_pf2vf == NULL) + return -EINVAL; + + if (pf2vf_info->size > 1024) { + dev_err(adev->dev, "invalid pf2vf message size: 0x%x\n", pf2vf_info->size); + return -EINVAL; + } + + switch (pf2vf_info->version) { + case 1: + checksum = ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->checksum; + checkval = amd_sriov_msg_checksum( + adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size, + adev->virt.fw_reserve.checksum_key, checksum); + if (checksum != checkval) { + dev_err(adev->dev, + "invalid pf2vf message: header checksum=0x%x calculated checksum=0x%x\n", + checksum, checkval); + return -EINVAL; + } + + adev->virt.gim_feature = + ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->feature_flags; + break; + case 2: + /* TODO: missing key, need to add it later */ + checksum = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->checksum; + checkval = amd_sriov_msg_checksum( + adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size, + 0, checksum); + if (checksum != checkval) { + dev_err(adev->dev, + "invalid pf2vf message: header checksum=0x%x calculated checksum=0x%x\n", + checksum, checkval); + return -EINVAL; + } + + adev->virt.vf2pf_update_interval_ms = + ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->vf2pf_update_interval_ms; + adev->virt.gim_feature = + ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->feature_flags.all; + adev->virt.reg_access = + ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->reg_access_flags.all; + + adev->virt.decode_max_dimension_pixels = 0; + adev->virt.decode_max_frame_pixels = 0; + adev->virt.encode_max_dimension_pixels = 0; + adev->virt.encode_max_frame_pixels = 0; + adev->virt.is_mm_bw_enabled = false; + for (i = 0; i < AMD_SRIOV_MSG_RESERVE_VCN_INST; i++) { + tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_dimension_pixels; + adev->virt.decode_max_dimension_pixels = max(tmp, adev->virt.decode_max_dimension_pixels); + + tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_frame_pixels; + adev->virt.decode_max_frame_pixels = max(tmp, adev->virt.decode_max_frame_pixels); + + tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_dimension_pixels; + adev->virt.encode_max_dimension_pixels = max(tmp, adev->virt.encode_max_dimension_pixels); + + tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_frame_pixels; + adev->virt.encode_max_frame_pixels = max(tmp, adev->virt.encode_max_frame_pixels); + } + if ((adev->virt.decode_max_dimension_pixels > 0) || (adev->virt.encode_max_dimension_pixels > 0)) + adev->virt.is_mm_bw_enabled = true; + + 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); + return -EINVAL; + } + + /* correct too large or too little interval value */ + if (adev->virt.vf2pf_update_interval_ms < 200 || adev->virt.vf2pf_update_interval_ms > 10000) + adev->virt.vf2pf_update_interval_ms = 2000; + + return 0; +} + +static void amdgpu_virt_populate_vf2pf_ucode_info(struct amdgpu_device *adev) +{ + struct amd_sriov_msg_vf2pf_info *vf2pf_info; + vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf; + + if (adev->virt.fw_reserve.p_vf2pf == NULL) + return; + + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCE, adev->vce.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_UVD, adev->uvd.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MC, adev->gmc.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ME, adev->gfx.me_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_PFP, adev->gfx.pfp_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_CE, adev->gfx.ce_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC, adev->gfx.rlc_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLC, adev->gfx.rlc_srlc_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLG, adev->gfx.rlc_srlg_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLS, adev->gfx.rlc_srls_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC, adev->gfx.mec_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC2, adev->gfx.mec2_fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SOS, adev->psp.sos.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ASD, + adev->psp.asd_context.bin_desc.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_RAS, + adev->psp.ras_context.context.bin_desc.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_XGMI, + adev->psp.xgmi_context.context.bin_desc.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SMC, adev->pm.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA, adev->sdma.instance[0].fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA2, adev->sdma.instance[1].fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCN, adev->vcn.fw_version); + POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_DMCU, adev->dm.dmcu_fw_version); +} + +static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev) +{ + struct amd_sriov_msg_vf2pf_info *vf2pf_info; + + vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf; + + if (adev->virt.fw_reserve.p_vf2pf == NULL) + return -EINVAL; + + memset(vf2pf_info, 0, sizeof(struct amd_sriov_msg_vf2pf_info)); + + vf2pf_info->header.size = sizeof(struct amd_sriov_msg_vf2pf_info); + vf2pf_info->header.version = AMD_SRIOV_MSG_FW_VRAM_VF2PF_VER; + +#ifdef MODULE + if (THIS_MODULE->version != NULL) + strcpy(vf2pf_info->driver_version, THIS_MODULE->version); + else +#endif + strcpy(vf2pf_info->driver_version, "N/A"); + + vf2pf_info->pf2vf_version_required = 0; // no requirement, guest understands all + vf2pf_info->driver_cert = 0; + vf2pf_info->os_info.all = 0; + + vf2pf_info->fb_usage = ttm_resource_manager_used(&adev->mman.vram_mgr.manager) ? + ttm_resource_manager_usage(&adev->mman.vram_mgr.manager) >> 20 : 0; + vf2pf_info->fb_vis_usage = + amdgpu_vram_mgr_vis_usage(&adev->mman.vram_mgr) >> 20; + vf2pf_info->fb_size = adev->gmc.real_vram_size >> 20; + vf2pf_info->fb_vis_size = adev->gmc.visible_vram_size >> 20; + + amdgpu_virt_populate_vf2pf_ucode_info(adev); + + /* TODO: read dynamic info */ + vf2pf_info->gfx_usage = 0; + vf2pf_info->compute_usage = 0; + vf2pf_info->encode_usage = 0; + vf2pf_info->decode_usage = 0; + + vf2pf_info->dummy_page_addr = (uint64_t)adev->dummy_page_addr; + 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( + vf2pf_info, sizeof(*vf2pf_info), 0, 0); + + return 0; +} + +static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work) +{ + struct amdgpu_device *adev = container_of(work, struct amdgpu_device, virt.vf2pf_work.work); + int ret; + + ret = amdgpu_virt_read_pf2vf_data(adev); + if (ret) { + adev->virt.vf2pf_update_retry_cnt++; + + if ((amdgpu_virt_rcvd_ras_interrupt(adev) || + adev->virt.vf2pf_update_retry_cnt >= AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT) && + amdgpu_sriov_runtime(adev)) { + + amdgpu_ras_set_fed(adev, true); + if (amdgpu_reset_domain_schedule(adev->reset_domain, + &adev->kfd.reset_work)) + return; + else + dev_err(adev->dev, "Failed to queue work! at %s", __func__); + } + + goto out; + } + + adev->virt.vf2pf_update_retry_cnt = 0; + amdgpu_virt_write_vf2pf_data(adev); + +out: + schedule_delayed_work(&(adev->virt.vf2pf_work), adev->virt.vf2pf_update_interval_ms); +} + +static int amdgpu_virt_read_exchange_data_from_mem(struct amdgpu_device *adev, uint32_t *pfvf_data) +{ + uint32_t dataexchange_offset = + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset; + uint32_t dataexchange_size = + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].size_kb << 10; + uint64_t pos = 0; + + dev_info(adev->dev, + "Got data exchange info from dynamic crit_region_table at offset 0x%x with size of 0x%x bytes.\n", + dataexchange_offset, dataexchange_size); + + if (!IS_ALIGNED(dataexchange_offset, 4) || !IS_ALIGNED(dataexchange_size, 4)) { + dev_err(adev->dev, "Data exchange data not aligned to 4 bytes\n"); + return -EINVAL; + } + + pos = (uint64_t)dataexchange_offset; + amdgpu_device_vram_access(adev, pos, pfvf_data, + dataexchange_size, false); + + return 0; +} + +void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev) +{ + if (adev->virt.vf2pf_update_interval_ms != 0) { + dev_info(adev->dev, "clean up the vf2pf work item\n"); + cancel_delayed_work_sync(&adev->virt.vf2pf_work); + adev->virt.vf2pf_update_interval_ms = 0; + } +} + +void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev) +{ + uint32_t *pfvf_data = NULL; adev->virt.fw_reserve.p_pf2vf = NULL; adev->virt.fw_reserve.p_vf2pf = NULL; + adev->virt.vf2pf_update_interval_ms = 0; + adev->virt.vf2pf_update_retry_cnt = 0; + + if (adev->mman.fw_vram_usage_va && adev->mman.drv_vram_usage_va) { + dev_warn(adev->dev, "Currently fw_vram and drv_vram should not have values at the same time!"); + } else if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) { + /* go through this logic in ip_init and reset to init workqueue*/ + amdgpu_virt_exchange_data(adev); + + INIT_DELAYED_WORK(&adev->virt.vf2pf_work, amdgpu_virt_update_vf2pf_work_item); + schedule_delayed_work(&(adev->virt.vf2pf_work), msecs_to_jiffies(adev->virt.vf2pf_update_interval_ms)); + } else if (adev->bios != NULL) { + /* got through this logic in early init stage to get necessary flags, e.g. rlcg_acc related*/ + if (adev->virt.req_init_data_ver == GPU_CRIT_REGION_V2) { + pfvf_data = + kzalloc(adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].size_kb << 10, + GFP_KERNEL); + if (!pfvf_data) { + dev_err(adev->dev, "Failed to allocate memory for pfvf_data\n"); + return; + } + + if (amdgpu_virt_read_exchange_data_from_mem(adev, pfvf_data)) + goto free_pfvf_data; + + adev->virt.fw_reserve.p_pf2vf = + (struct amd_sriov_msg_pf2vf_info_header *)pfvf_data; - if (adev->fw_vram_usage.va != NULL) { - adev->virt.fw_reserve.p_pf2vf = - (struct amd_sriov_msg_pf2vf_info_header *)( - adev->fw_vram_usage.va + AMDGIM_DATAEXCHANGE_OFFSET); - AMDGPU_FW_VRAM_PF2VF_READ(adev, header.size, &pf2vf_size); - AMDGPU_FW_VRAM_PF2VF_READ(adev, checksum, &checksum); - AMDGPU_FW_VRAM_PF2VF_READ(adev, feature_flags, &adev->virt.gim_feature); - - /* pf2vf message must be in 4K */ - if (pf2vf_size > 0 && pf2vf_size < 4096) { - checkval = amdgpu_virt_fw_reserve_get_checksum( - adev->virt.fw_reserve.p_pf2vf, pf2vf_size, - adev->virt.fw_reserve.checksum_key, checksum); - if (checkval == checksum) { + amdgpu_virt_read_pf2vf_data(adev); + +free_pfvf_data: + kfree(pfvf_data); + pfvf_data = NULL; + adev->virt.fw_reserve.p_pf2vf = NULL; + } else { + adev->virt.fw_reserve.p_pf2vf = + (struct amd_sriov_msg_pf2vf_info_header *) + (adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB_V1 << 10)); + + amdgpu_virt_read_pf2vf_data(adev); + } + } +} + + +void amdgpu_virt_exchange_data(struct amdgpu_device *adev) +{ + uint64_t bp_block_offset = 0; + uint32_t bp_block_size = 0; + struct amd_sriov_msg_pf2vf_info *pf2vf_v2 = NULL; + + if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) { + if (adev->mman.fw_vram_usage_va) { + if (adev->virt.req_init_data_ver == GPU_CRIT_REGION_V2) { + adev->virt.fw_reserve.p_pf2vf = + (struct amd_sriov_msg_pf2vf_info_header *) + (adev->mman.fw_vram_usage_va + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset); adev->virt.fw_reserve.p_vf2pf = - ((void *)adev->virt.fw_reserve.p_pf2vf + - pf2vf_size); - memset((void *)adev->virt.fw_reserve.p_vf2pf, 0, - sizeof(amdgim_vf2pf_info)); - AMDGPU_FW_VRAM_VF2PF_WRITE(adev, header.version, - AMDGPU_FW_VRAM_VF2PF_VER); - AMDGPU_FW_VRAM_VF2PF_WRITE(adev, header.size, - sizeof(amdgim_vf2pf_info)); - AMDGPU_FW_VRAM_VF2PF_READ(adev, driver_version, - &str); -#ifdef MODULE - if (THIS_MODULE->version != NULL) - strcpy(str, THIS_MODULE->version); - else -#endif - strcpy(str, "N/A"); - AMDGPU_FW_VRAM_VF2PF_WRITE(adev, driver_cert, - 0); - AMDGPU_FW_VRAM_VF2PF_WRITE(adev, checksum, - amdgpu_virt_fw_reserve_get_checksum( - adev->virt.fw_reserve.p_vf2pf, - pf2vf_size, - adev->virt.fw_reserve.checksum_key, 0)); + (struct amd_sriov_msg_vf2pf_info_header *) + (adev->mman.fw_vram_usage_va + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset + + (AMD_SRIOV_MSG_SIZE_KB << 10)); + adev->virt.fw_reserve.ras_telemetry = + (adev->mman.fw_vram_usage_va + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID].offset); + } else { + adev->virt.fw_reserve.p_pf2vf = + (struct amd_sriov_msg_pf2vf_info_header *) + (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB_V1 << 10)); + 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_V1 << 10)); + adev->virt.fw_reserve.ras_telemetry = + (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB_V1 << 10)); } + } else if (adev->mman.drv_vram_usage_va) { + adev->virt.fw_reserve.p_pf2vf = + (struct amd_sriov_msg_pf2vf_info_header *) + (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB_V1 << 10)); + 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_V1 << 10)); + adev->virt.fw_reserve.ras_telemetry = + (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB_V1 << 10)); + } + + amdgpu_virt_read_pf2vf_data(adev); + amdgpu_virt_write_vf2pf_data(adev); + + /* bad page handling for version 2 */ + if (adev->virt.fw_reserve.p_pf2vf->version == 2) { + pf2vf_v2 = (struct amd_sriov_msg_pf2vf_info *)adev->virt.fw_reserve.p_pf2vf; + + bp_block_offset = ((uint64_t)pf2vf_v2->bp_block_offset_low & 0xFFFFFFFF) | + ((((uint64_t)pf2vf_v2->bp_block_offset_high) << 32) & 0xFFFFFFFF00000000); + bp_block_size = pf2vf_v2->bp_block_size; + + if (bp_block_size && !adev->virt.ras_init_done) + amdgpu_virt_init_ras_err_handler_data(adev); + + if (adev->virt.ras_init_done) + amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size); } } } -void amdgpu_detect_virtualization(struct amdgpu_device *adev) +static u32 amdgpu_virt_init_detect_asic(struct amdgpu_device *adev) { uint32_t reg; @@ -321,7 +832,10 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev) case CHIP_VEGA20: case CHIP_NAVI10: case CHIP_NAVI12: + case CHIP_SIENNA_CICHLID: case CHIP_ARCTURUS: + case CHIP_ALDEBARAN: + case CHIP_IP_DISCOVERY: reg = RREG32(mmRCC_IOV_FUNC_IDENTIFIER); break; default: /* other chip doesn't support SRIOV */ @@ -336,17 +850,304 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV; if (!reg) { - if (is_virtual_machine()) /* passthrough mode exclus sriov mod */ + /* passthrough mode exclus sriov mod */ + if (is_virtual_machine() && !xen_initial_domain()) 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: + vi_set_virt_ops(adev); + break; + case CHIP_VEGA10: + soc15_set_virt_ops(adev); +#ifdef CONFIG_X86 + /* not send GPU_INIT_DATA with MS_HYPERV*/ + if (!hypervisor_is_type(X86_HYPER_MS_HYPERV)) +#endif + /* send a dummy GPU_INIT_DATA request to host on vega10 */ + amdgpu_virt_request_init_data(adev); + break; + case CHIP_VEGA20: + case CHIP_ARCTURUS: + case CHIP_ALDEBARAN: + soc15_set_virt_ops(adev); + break; + case CHIP_NAVI10: + case CHIP_NAVI12: + case CHIP_SIENNA_CICHLID: + case CHIP_IP_DISCOVERY: + nv_set_virt_ops(adev); + /* try send GPU_INIT_DATA request to host */ + amdgpu_virt_request_init_data(adev); + break; + default: /* other chip doesn't support SRIOV */ + is_sriov = false; + dev_err(adev->dev, "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_state_init(&adev->virt.ras.ras_chk_criti_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); + ratelimit_set_flags(&adev->virt.ras.ras_chk_criti_rs, + RATELIMIT_MSG_ON_RELEASE); + + mutex_init(&adev->virt.ras.ras_telemetry_mutex); + mutex_init(&adev->virt.access_req_mutex); + + adev->virt.ras.cper_rptr = 0; +} + +static uint8_t amdgpu_virt_crit_region_calc_checksum(uint8_t *buf_start, uint8_t *buf_end) +{ + uint32_t sum = 0; + + if (buf_start >= buf_end) + return 0; + + for (; buf_start < buf_end; buf_start++) + sum += buf_start[0]; + + return 0xffffffff - sum; +} + +int amdgpu_virt_init_critical_region(struct amdgpu_device *adev) +{ + struct amd_sriov_msg_init_data_header *init_data_hdr = NULL; + u64 init_hdr_offset = adev->virt.init_data_header.offset; + u64 init_hdr_size = (u64)adev->virt.init_data_header.size_kb << 10; /* KB → bytes */ + u64 vram_size; + u64 end; + int r = 0; + uint8_t checksum = 0; + + /* Skip below init if critical region version != v2 */ + if (adev->virt.req_init_data_ver != GPU_CRIT_REGION_V2) + return 0; + + if (init_hdr_offset < 0) { + dev_err(adev->dev, "Invalid init header offset\n"); + return -EINVAL; + } + + vram_size = RREG32(mmRCC_CONFIG_MEMSIZE); + if (!vram_size || vram_size == U32_MAX) + return -EINVAL; + vram_size <<= 20; + + if (check_add_overflow(init_hdr_offset, init_hdr_size, &end) || end > vram_size) { + dev_err(adev->dev, "init_data_header exceeds VRAM size, exiting\n"); + return -EINVAL; + } + + /* Allocate for init_data_hdr */ + init_data_hdr = kzalloc(sizeof(struct amd_sriov_msg_init_data_header), GFP_KERNEL); + if (!init_data_hdr) + return -ENOMEM; + + amdgpu_device_vram_access(adev, (uint64_t)init_hdr_offset, (uint32_t *)init_data_hdr, + sizeof(struct amd_sriov_msg_init_data_header), false); + + /* Table validation */ + if (strncmp(init_data_hdr->signature, + AMDGPU_SRIOV_CRIT_DATA_SIGNATURE, + AMDGPU_SRIOV_CRIT_DATA_SIG_LEN) != 0) { + dev_err(adev->dev, "Invalid init data signature: %.4s\n", + init_data_hdr->signature); + r = -EINVAL; + goto out; + } + + checksum = amdgpu_virt_crit_region_calc_checksum( + (uint8_t *)&init_data_hdr->initdata_offset, + (uint8_t *)init_data_hdr + + sizeof(struct amd_sriov_msg_init_data_header)); + if (checksum != init_data_hdr->checksum) { + dev_err(adev->dev, "Found unmatching checksum from calculation 0x%x and init_data 0x%x\n", + checksum, init_data_hdr->checksum); + r = -EINVAL; + goto out; + } + + memset(&adev->virt.crit_regn, 0, sizeof(adev->virt.crit_regn)); + memset(adev->virt.crit_regn_tbl, 0, sizeof(adev->virt.crit_regn_tbl)); + + adev->virt.crit_regn.offset = init_data_hdr->initdata_offset; + adev->virt.crit_regn.size_kb = init_data_hdr->initdata_size_in_kb; + + /* Validation and initialization for each table entry */ + if (IS_SRIOV_CRIT_REGN_ENTRY_VALID(init_data_hdr, AMD_SRIOV_MSG_IPD_TABLE_ID)) { + if (!init_data_hdr->ip_discovery_size_in_kb || + init_data_hdr->ip_discovery_size_in_kb > DISCOVERY_TMR_SIZE) { + dev_err(adev->dev, "Invalid %s size: 0x%x\n", + amdgpu_virt_dynamic_crit_table_name[AMD_SRIOV_MSG_IPD_TABLE_ID], + init_data_hdr->ip_discovery_size_in_kb); + r = -EINVAL; + goto out; + } + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].offset = + init_data_hdr->ip_discovery_offset; + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].size_kb = + init_data_hdr->ip_discovery_size_in_kb; + } + + if (IS_SRIOV_CRIT_REGN_ENTRY_VALID(init_data_hdr, AMD_SRIOV_MSG_VBIOS_IMG_TABLE_ID)) { + if (!init_data_hdr->vbios_img_size_in_kb) { + dev_err(adev->dev, "Invalid %s size: 0x%x\n", + amdgpu_virt_dynamic_crit_table_name[AMD_SRIOV_MSG_VBIOS_IMG_TABLE_ID], + init_data_hdr->vbios_img_size_in_kb); + r = -EINVAL; + goto out; + } + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_VBIOS_IMG_TABLE_ID].offset = + init_data_hdr->vbios_img_offset; + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_VBIOS_IMG_TABLE_ID].size_kb = + init_data_hdr->vbios_img_size_in_kb; + } + + if (IS_SRIOV_CRIT_REGN_ENTRY_VALID(init_data_hdr, AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID)) { + if (!init_data_hdr->ras_tele_info_size_in_kb) { + dev_err(adev->dev, "Invalid %s size: 0x%x\n", + amdgpu_virt_dynamic_crit_table_name[AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID], + init_data_hdr->ras_tele_info_size_in_kb); + r = -EINVAL; + goto out; + } + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID].offset = + init_data_hdr->ras_tele_info_offset; + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID].size_kb = + init_data_hdr->ras_tele_info_size_in_kb; + } + + if (IS_SRIOV_CRIT_REGN_ENTRY_VALID(init_data_hdr, AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID)) { + if (!init_data_hdr->dataexchange_size_in_kb) { + dev_err(adev->dev, "Invalid %s size: 0x%x\n", + amdgpu_virt_dynamic_crit_table_name[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID], + init_data_hdr->dataexchange_size_in_kb); + r = -EINVAL; + goto out; + } + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset = + init_data_hdr->dataexchange_offset; + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].size_kb = + init_data_hdr->dataexchange_size_in_kb; + } + + if (IS_SRIOV_CRIT_REGN_ENTRY_VALID(init_data_hdr, AMD_SRIOV_MSG_BAD_PAGE_INFO_TABLE_ID)) { + if (!init_data_hdr->bad_page_size_in_kb) { + dev_err(adev->dev, "Invalid %s size: 0x%x\n", + amdgpu_virt_dynamic_crit_table_name[AMD_SRIOV_MSG_BAD_PAGE_INFO_TABLE_ID], + init_data_hdr->bad_page_size_in_kb); + r = -EINVAL; + goto out; + } + + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_BAD_PAGE_INFO_TABLE_ID].offset = + init_data_hdr->bad_page_info_offset; + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_BAD_PAGE_INFO_TABLE_ID].size_kb = + init_data_hdr->bad_page_size_in_kb; + } + + /* Validation for critical region info */ + if (adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].size_kb > DISCOVERY_TMR_SIZE) { + dev_err(adev->dev, "Invalid IP discovery size: 0x%x\n", + adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].size_kb); + r = -EINVAL; + goto out; + } + + /* reserved memory starts from crit region base offset with the size of 5MB */ + adev->mman.fw_vram_usage_start_offset = adev->virt.crit_regn.offset; + adev->mman.fw_vram_usage_size = adev->virt.crit_regn.size_kb << 10; + dev_info(adev->dev, + "critical region v%d requested to reserve memory start at %08llx with %llu KB.\n", + init_data_hdr->version, + adev->mman.fw_vram_usage_start_offset, + adev->mman.fw_vram_usage_size >> 10); + + adev->virt.is_dynamic_crit_regn_enabled = true; + +out: + kfree(init_data_hdr); + init_data_hdr = NULL; + + return r; } -bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev) +int amdgpu_virt_get_dynamic_data_info(struct amdgpu_device *adev, + int data_id, uint8_t *binary, u32 *size) +{ + uint32_t data_offset = 0; + uint32_t data_size = 0; + enum amd_sriov_msg_table_id_enum data_table_id = data_id; + + if (data_table_id >= AMD_SRIOV_MSG_MAX_TABLE_ID) + return -EINVAL; + + data_offset = adev->virt.crit_regn_tbl[data_table_id].offset; + data_size = adev->virt.crit_regn_tbl[data_table_id].size_kb << 10; + + /* Validate on input params */ + if (!binary || !size || *size < (uint64_t)data_size) + return -EINVAL; + + /* Proceed to copy the dynamic content */ + amdgpu_device_vram_access(adev, + (uint64_t)data_offset, (uint32_t *)binary, data_size, false); + *size = (uint64_t)data_size; + + dev_dbg(adev->dev, + "Got %s info from dynamic crit_region_table at offset 0x%x with size of 0x%x bytes.\n", + amdgpu_virt_dynamic_crit_table_name[data_id], data_offset, data_size); + + return 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) { return amdgpu_sriov_is_debug(adev) ? true : false; } -bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev) +static bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev) { return amdgpu_sriov_is_normal(adev) ? true : false; } @@ -386,3 +1187,661 @@ enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *ad return mode; } + +void amdgpu_virt_pre_reset(struct amdgpu_device *adev) +{ + /* stop the data exchange thread */ + amdgpu_virt_fini_data_exchange(adev); + amdgpu_dpm_set_mp1_state(adev, PP_MP1_STATE_FLR); +} + +void amdgpu_virt_post_reset(struct amdgpu_device *adev) +{ + if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(11, 0, 3)) { + /* force set to GFXOFF state after reset, + * to avoid some invalid operation before GC enable + */ + adev->gfx.is_poweron = false; + } + + adev->mes.ring[0].sched.ready = false; +} + +bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev, uint32_t ucode_id) +{ + switch (amdgpu_ip_version(adev, MP0_HWIP, 0)) { + case IP_VERSION(13, 0, 0): + /* no vf autoload, white list */ + if (ucode_id == AMDGPU_UCODE_ID_VCN1 || + ucode_id == AMDGPU_UCODE_ID_VCN) + return false; + else + return true; + case IP_VERSION(11, 0, 9): + case IP_VERSION(11, 0, 7): + /* black list for CHIP_NAVI12 and CHIP_SIENNA_CICHLID */ + if (ucode_id == AMDGPU_UCODE_ID_RLC_G + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM + || ucode_id == AMDGPU_UCODE_ID_SMC) + return true; + else + return false; + case IP_VERSION(13, 0, 10): + /* white list */ + if (ucode_id == AMDGPU_UCODE_ID_CAP + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P0_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P1_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P0_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P1_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P0_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P1_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P2_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P3_STACK + || ucode_id == AMDGPU_UCODE_ID_CP_MES + || ucode_id == AMDGPU_UCODE_ID_CP_MES_DATA + || ucode_id == AMDGPU_UCODE_ID_CP_MES1 + || ucode_id == AMDGPU_UCODE_ID_CP_MES1_DATA + || ucode_id == AMDGPU_UCODE_ID_VCN1 + || ucode_id == AMDGPU_UCODE_ID_VCN) + return false; + else + return true; + default: + /* lagacy black list */ + if (ucode_id == AMDGPU_UCODE_ID_SDMA0 + || ucode_id == AMDGPU_UCODE_ID_SDMA1 + || ucode_id == AMDGPU_UCODE_ID_SDMA2 + || ucode_id == AMDGPU_UCODE_ID_SDMA3 + || ucode_id == AMDGPU_UCODE_ID_SDMA4 + || ucode_id == AMDGPU_UCODE_ID_SDMA5 + || ucode_id == AMDGPU_UCODE_ID_SDMA6 + || ucode_id == AMDGPU_UCODE_ID_SDMA7 + || ucode_id == AMDGPU_UCODE_ID_RLC_G + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM + || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM + || ucode_id == AMDGPU_UCODE_ID_SMC) + return true; + else + return false; + } +} + +void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev, + struct amdgpu_video_codec_info *encode, uint32_t encode_array_size, + struct amdgpu_video_codec_info *decode, uint32_t decode_array_size) +{ + uint32_t i; + + if (!adev->virt.is_mm_bw_enabled) + return; + + if (encode) { + for (i = 0; i < encode_array_size; i++) { + encode[i].max_width = adev->virt.encode_max_dimension_pixels; + encode[i].max_pixels_per_frame = adev->virt.encode_max_frame_pixels; + if (encode[i].max_width > 0) + encode[i].max_height = encode[i].max_pixels_per_frame / encode[i].max_width; + else + encode[i].max_height = 0; + } + } + + if (decode) { + for (i = 0; i < decode_array_size; i++) { + decode[i].max_width = adev->virt.decode_max_dimension_pixels; + decode[i].max_pixels_per_frame = adev->virt.decode_max_frame_pixels; + if (decode[i].max_width > 0) + decode[i].max_height = decode[i].max_pixels_per_frame / decode[i].max_width; + else + decode[i].max_height = 0; + } + } +} + +bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev, + u32 acc_flags, u32 hwip, + bool write, u32 *rlcg_flag) +{ + bool ret = false; + + switch (hwip) { + case GC_HWIP: + if (amdgpu_sriov_reg_indirect_gc(adev)) { + *rlcg_flag = + write ? AMDGPU_RLCG_GC_WRITE : AMDGPU_RLCG_GC_READ; + ret = true; + /* only in new version, AMDGPU_REGS_NO_KIQ and + * AMDGPU_REGS_RLC are enabled simultaneously */ + } else if ((acc_flags & AMDGPU_REGS_RLC) && + !(acc_flags & AMDGPU_REGS_NO_KIQ) && write) { + *rlcg_flag = AMDGPU_RLCG_GC_WRITE_LEGACY; + ret = true; + } + break; + case MMHUB_HWIP: + if (amdgpu_sriov_reg_indirect_mmhub(adev) && + (acc_flags & AMDGPU_REGS_RLC) && write) { + *rlcg_flag = AMDGPU_RLCG_MMHUB_WRITE; + ret = true; + } + break; + default: + break; + } + return ret; +} + +u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id) +{ + struct amdgpu_rlcg_reg_access_ctrl *reg_access_ctrl; + uint32_t timeout = 50000; + uint32_t i, tmp; + uint32_t ret = 0; + void *scratch_reg0; + void *scratch_reg1; + void *scratch_reg2; + void *scratch_reg3; + void *spare_int; + unsigned long flags; + + if (!adev->gfx.rlc.rlcg_reg_access_supported) { + dev_err(adev->dev, + "indirect registers access through rlcg is not available\n"); + return 0; + } + + if (adev->gfx.xcc_mask && (((1 << xcc_id) & adev->gfx.xcc_mask) == 0)) { + dev_err(adev->dev, "invalid xcc\n"); + return 0; + } + + if (amdgpu_device_skip_hw_access(adev)) + return 0; + + reg_access_ctrl = &adev->gfx.rlc.reg_access_ctrl[xcc_id]; + scratch_reg0 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg0; + scratch_reg1 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg1; + scratch_reg2 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg2; + scratch_reg3 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg3; + + 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; + + if (offset == reg_access_ctrl->grbm_cntl) { + /* if the target reg offset is grbm_cntl, write to scratch_reg2 */ + writel(v, scratch_reg2); + if (flag == AMDGPU_RLCG_GC_WRITE_LEGACY) + writel(v, ((void __iomem *)adev->rmmio) + (offset * 4)); + } else if (offset == reg_access_ctrl->grbm_idx) { + /* if the target reg offset is grbm_idx, write to scratch_reg3 */ + writel(v, scratch_reg3); + if (flag == AMDGPU_RLCG_GC_WRITE_LEGACY) + writel(v, ((void __iomem *)adev->rmmio) + (offset * 4)); + } else { + /* + * SCRATCH_REG0 = read/write value + * SCRATCH_REG1[30:28] = command + * SCRATCH_REG1[19:0] = address in dword + * SCRATCH_REG1[27:24] = Error reporting + */ + writel(v, scratch_reg0); + writel((offset | flag), scratch_reg1); + if (reg_access_ctrl->spare_int) + writel(1, spare_int); + + for (i = 0; i < timeout; i++) { + tmp = readl(scratch_reg1); + if (!(tmp & AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK)) + break; + udelay(10); + } + + tmp = readl(scratch_reg1); + if (i >= timeout || (tmp & AMDGPU_RLCG_SCRATCH1_ERROR_MASK) != 0) { + if (amdgpu_sriov_rlcg_error_report_enabled(adev)) { + if (tmp & AMDGPU_RLCG_VFGATE_DISABLED) { + dev_err(adev->dev, + "vfgate is disabled, rlcg failed to program reg: 0x%05x\n", offset); + } else if (tmp & AMDGPU_RLCG_WRONG_OPERATION_TYPE) { + dev_err(adev->dev, + "wrong operation type, rlcg failed to program reg: 0x%05x\n", offset); + } else if (tmp & AMDGPU_RLCG_REG_NOT_IN_RANGE) { + dev_err(adev->dev, + "register is not in range, rlcg failed to program reg: 0x%05x\n", offset); + } else { + dev_err(adev->dev, + "unknown error type, rlcg failed to program reg: 0x%05x\n", offset); + } + } else { + dev_err(adev->dev, + "timeout: rlcg faled to program reg: 0x%05x\n", offset); + } + } + } + + ret = readl(scratch_reg0); + + spin_unlock_irqrestore(&adev->virt.rlcg_reg_lock, flags); + + return ret; +} + +void amdgpu_sriov_wreg(struct amdgpu_device *adev, + u32 offset, u32 value, + u32 acc_flags, u32 hwip, u32 xcc_id) +{ + u32 rlcg_flag; + + if (amdgpu_device_skip_hw_access(adev)) + return; + + if (!amdgpu_sriov_runtime(adev) && + amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, true, &rlcg_flag)) { + amdgpu_virt_rlcg_reg_rw(adev, offset, value, rlcg_flag, xcc_id); + return; + } + + if (acc_flags & AMDGPU_REGS_NO_KIQ) + WREG32_NO_KIQ(offset, value); + else + WREG32(offset, value); +} + +u32 amdgpu_sriov_rreg(struct amdgpu_device *adev, + u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id) +{ + u32 rlcg_flag; + + if (amdgpu_device_skip_hw_access(adev)) + return 0; + + if (!amdgpu_sriov_runtime(adev) && + amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, false, &rlcg_flag)) + return amdgpu_virt_rlcg_reg_rw(adev, offset, 0, rlcg_flag, xcc_id); + + if (acc_flags & AMDGPU_REGS_NO_KIQ) + return RREG32_NO_KIQ(offset); + else + return RREG32(offset); +} + +bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev) +{ + bool xnack_mode = true; + + if (amdgpu_sriov_vf(adev) && + amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 2)) + xnack_mode = false; + + 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: + dev_warn(adev->dev, "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_MSG_RAS_TELEMETRY_SIZE_KB_V1 << 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_MSG_RAS_TELEMETRY_SIZE_KB_V1 << 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); +} + +static int amdgpu_virt_cache_chk_criti_hit(struct amdgpu_device *adev, + struct amdsriov_ras_telemetry *host_telemetry, + bool *hit) +{ + struct amd_sriov_ras_chk_criti *tmp = NULL; + uint32_t checksum, used_size; + + checksum = host_telemetry->header.checksum; + used_size = host_telemetry->header.used_size; + + if (used_size > (AMD_SRIOV_MSG_RAS_TELEMETRY_SIZE_KB_V1 << 10)) + return 0; + + tmp = kmemdup(&host_telemetry->body.chk_criti, used_size, GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + if (checksum != amd_sriov_msg_checksum(tmp, used_size, 0, 0)) + goto out; + + if (hit) + *hit = tmp->hit ? true : false; + +out: + kfree(tmp); + + return 0; +} + +int amdgpu_virt_check_vf_critical_region(struct amdgpu_device *adev, u64 addr, bool *hit) +{ + struct amdgpu_virt *virt = &adev->virt; + int r = -EPERM; + + if (!virt->ops || !virt->ops->req_ras_chk_criti) + 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_chk_criti_rs)) { + mutex_lock(&virt->ras.ras_telemetry_mutex); + if (!virt->ops->req_ras_chk_criti(adev, addr)) + r = amdgpu_virt_cache_chk_criti_hit( + adev, virt->fw_reserve.ras_telemetry, hit); + mutex_unlock(&virt->ras.ras_telemetry_mutex); + } + + return r; +} |