diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index d49671a2ecd5..b75a0dc22ace 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -143,6 +143,10 @@ static int amdgpu_ras_check_bad_page_unlock(struct amdgpu_ras *con, uint64_t addr); static int amdgpu_ras_check_bad_page(struct amdgpu_device *adev, uint64_t addr); + +static void amdgpu_ras_critical_region_init(struct amdgpu_device *adev); +static void amdgpu_ras_critical_region_fini(struct amdgpu_device *adev); + #ifdef CONFIG_X86_MCE_AMD static void amdgpu_register_bad_pages_mca_notifier(struct amdgpu_device *adev); struct mce_notifier_adev_list { @@ -3728,6 +3732,8 @@ static int amdgpu_ras_recovery_fini(struct amdgpu_device *adev) kfree(data); mutex_unlock(&con->recovery_lock); + amdgpu_ras_critical_region_init(adev); + return 0; } /* recovery end */ @@ -4157,6 +4163,9 @@ int amdgpu_ras_init(struct amdgpu_device *adev) con->init_task_pid = task_pid_nr(current); get_task_comm(con->init_task_comm, current); + mutex_init(&con->critical_region_lock); + INIT_LIST_HEAD(&con->critical_region_head); + dev_info(adev->dev, "RAS INFO: ras initialized successfully, " "hardware ability[%x] ras_mask[%x]\n", adev->ras_hw_enabled, adev->ras_enabled); @@ -4436,6 +4445,9 @@ int amdgpu_ras_fini(struct amdgpu_device *adev) if (!adev->ras_enabled || !con) return 0; + amdgpu_ras_critical_region_fini(adev); + mutex_destroy(&con->critical_region_lock); + list_for_each_entry_safe(ras_node, tmp, &adev->ras_list, node) { if (ras_node->ras_obj) { obj = ras_node->ras_obj; @@ -5380,3 +5392,80 @@ bool amdgpu_ras_is_rma(struct amdgpu_device *adev) return con->is_rma; } + +int amdgpu_ras_add_critical_region(struct amdgpu_device *adev, + struct amdgpu_bo *bo) +{ + struct amdgpu_ras *con = amdgpu_ras_get_context(adev); + struct amdgpu_vram_mgr_resource *vres; + struct ras_critical_region *region; + struct drm_buddy_block *block; + int ret = 0; + + if (!bo || !bo->tbo.resource) + return -EINVAL; + + vres = to_amdgpu_vram_mgr_resource(bo->tbo.resource); + + mutex_lock(&con->critical_region_lock); + + /* Check if the bo had been recorded */ + list_for_each_entry(region, &con->critical_region_head, node) + if (region->bo == bo) + goto out; + + /* Record new critical amdgpu bo */ + list_for_each_entry(block, &vres->blocks, link) { + region = kzalloc(sizeof(*region), GFP_KERNEL); + if (!region) { + ret = -ENOMEM; + goto out; + } + region->bo = bo; + region->start = amdgpu_vram_mgr_block_start(block); + region->size = amdgpu_vram_mgr_block_size(block); + list_add_tail(®ion->node, &con->critical_region_head); + } + +out: + mutex_unlock(&con->critical_region_lock); + + return ret; +} + +static void amdgpu_ras_critical_region_init(struct amdgpu_device *adev) +{ + amdgpu_ras_add_critical_region(adev, adev->mman.fw_reserved_memory); +} + +static void amdgpu_ras_critical_region_fini(struct amdgpu_device *adev) +{ + struct amdgpu_ras *con = amdgpu_ras_get_context(adev); + struct ras_critical_region *region, *tmp; + + mutex_lock(&con->critical_region_lock); + list_for_each_entry_safe(region, tmp, &con->critical_region_head, node) { + list_del(®ion->node); + kfree(region); + } + mutex_unlock(&con->critical_region_lock); +} + +bool amdgpu_ras_check_critical_address(struct amdgpu_device *adev, uint64_t addr) +{ + struct amdgpu_ras *con = amdgpu_ras_get_context(adev); + struct ras_critical_region *region; + bool ret = false; + + mutex_lock(&con->critical_region_lock); + list_for_each_entry(region, &con->critical_region_head, node) { + if ((region->start <= addr) && + (addr < (region->start + region->size))) { + ret = true; + break; + } + } + mutex_unlock(&con->critical_region_lock); + + return ret; +} |