[PATCH 4/5] drm/amd/ras: Add function to convert retired address

[Jinzhou Su]

Add function to convert retired address in SR-IOV
guest.

Signed-off-by: Jinzhou Su <jinzhou...@amd.com>
---
 .../drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.c | 27 +++++++++++++++++++
 .../drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.h |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.c 
b/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.c
index 3e0ce9b004e7..26d062239ba9 100644
--- a/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.c
+++ b/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.c
@@ -344,6 +344,33 @@ int amdgpu_virt_ras_check_address_validity(struct 
amdgpu_device *adev,
        return RAS_CMD__SUCCESS;
 }
 
+int amdgpu_virt_ras_convert_retired_address(struct amdgpu_device *adev,
+                       uint64_t address, uint64_t *pfn, uint32_t max_pfn_sz)
+{
+       struct ras_cmd_convert_retired_address_req req = {0};
+       struct ras_cmd_convert_retired_address_rsp rsp = {0};
+       int ret = 0, i;
+       int retired_page_count;
+
+       if (!pfn || !max_pfn_sz)
+               return -EINVAL;
+
+       req.address = address;
+
+       ret = amdgpu_ras_mgr_handle_ras_cmd(adev, 
RAS_CMD__CONVERT_RETIRED_ADDRESS,
+               &req, sizeof(req), &rsp, sizeof(rsp));
+
+       if (ret || rsp.retired_count == 0)
+               return -EINVAL;
+
+       retired_page_count = rsp.retired_count > max_pfn_sz ? max_pfn_sz : 
rsp.retired_count;
+
+       for(i = 0; i < retired_page_count; i++)
+               pfn[i] = rsp.retired_addr[i] >> AMDGPU_GPU_PAGE_SHIFT;
+
+       return retired_page_count;
+}
+
 static struct ras_cmd_func_map amdgpu_virt_ras_cmd_maps[] = {
        {RAS_CMD__GET_CPER_SNAPSHOT, amdgpu_virt_ras_get_cper_snapshot},
        {RAS_CMD__GET_CPER_RECORD, amdgpu_virt_ras_get_cper_records},
diff --git a/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.h 
b/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.h
index f4a4dfa4bdf2..6e1cce490e47 100644
--- a/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.h
+++ b/drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_virt_ras_cmd.h
@@ -56,4 +56,6 @@ void amdgpu_virt_ras_set_remote_uniras(struct amdgpu_device 
*adev, bool en);
 bool amdgpu_virt_ras_remote_uniras_enabled(struct amdgpu_device *adev);
 int amdgpu_virt_ras_check_address_validity(struct amdgpu_device *adev,
                        uint64_t address, bool *hit);
+int amdgpu_virt_ras_convert_retired_address(struct amdgpu_device *adev,
+                       uint64_t address, uint64_t *pfn, uint32_t max_pfn_sz);
 #endif
-- 
2.43.0