drm/amdgpu: switch to amdgpu_ras_late_init for sdma v4 block (v2)

call helper function in late init phase to handle ras init
for sdma ip block

v2: call ras_late_fini to do clean up when fail to enable interrupt

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index f4d353b..82980ef 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1696,7 +1696,6 @@ static int sdma_v4_0_process_ras_data_cb(struct amdgpu_device *adev,
 static int sdma_v4_0_late_init(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-       struct ras_common_if **ras_if = &adev->sdma.ras_if;
        struct ras_ih_if ih_info = {
                .cb = sdma_v4_0_process_ras_data_cb,
        };
@@ -1704,87 +1703,38 @@ static int sdma_v4_0_late_init(void *handle)
                .sysfs_name = "sdma_err_count",
                .debugfs_name = "sdma_err_inject",
        };
-       struct ras_common_if ras_block = {
-               .block = AMDGPU_RAS_BLOCK__SDMA,
-               .type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE,
-               .sub_block_index = 0,
-               .name = "sdma",
-       };
        int r, i;
 
-       if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__SDMA)) {
-               amdgpu_ras_feature_enable_on_boot(adev, &ras_block, 0);
-               return 0;
-       }
-
-       /* handle resume path. */
-       if (*ras_if) {
-               /* resend ras TA enable cmd during resume.
-                * prepare to handle failure.
-                */
-               ih_info.head = **ras_if;
-               r = amdgpu_ras_feature_enable_on_boot(adev, *ras_if, 1);
-               if (r) {
-                       if (r == -EAGAIN) {
-                               /* request a gpu reset. will run again. */
-                               amdgpu_ras_request_reset_on_boot(adev,
-                                               AMDGPU_RAS_BLOCK__SDMA);
-                               return 0;
-                       }
-                       /* fail to enable ras, cleanup all. */
-                       goto irq;
-               }
-               /* enable successfully. continue. */
-               goto resume;
-       }
-
-       *ras_if = kmalloc(sizeof(**ras_if), GFP_KERNEL);
-       if (!*ras_if)
-               return -ENOMEM;
-
-       **ras_if = ras_block;
-
-       r = amdgpu_ras_feature_enable_on_boot(adev, *ras_if, 1);
-       if (r) {
-               if (r == -EAGAIN) {
-                       amdgpu_ras_request_reset_on_boot(adev,
-                                       AMDGPU_RAS_BLOCK__SDMA);
-                       r = 0;
-               }
-               goto feature;
+       if (!adev->sdma.ras_if) {
+               adev->sdma.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
+               if (!adev->sdma.ras_if)
+                       return -ENOMEM;
+               adev->sdma.ras_if->block = AMDGPU_RAS_BLOCK__SDMA;
+               adev->sdma.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+               adev->sdma.ras_if->sub_block_index = 0;
+               strcpy(adev->sdma.ras_if->name, "sdma");
        }
+       fs_info.head = ih_info.head = *adev->sdma.ras_if;
 
-       ih_info.head = **ras_if;
-       fs_info.head = **ras_if;
-
-       r = amdgpu_ras_interrupt_add_handler(adev, &ih_info);
+       r = amdgpu_ras_late_init(adev, adev->sdma.ras_if,
+                                &fs_info, &ih_info);
        if (r)
-               goto interrupt;
-
-       amdgpu_ras_debugfs_create(adev, &fs_info);
+               goto free;
 
-       r = amdgpu_ras_sysfs_create(adev, &fs_info);
-       if (r)
-               goto sysfs;
-resume:
-       for (i = 0; i < adev->sdma.num_instances; i++) {
-               r = amdgpu_irq_get(adev, &adev->sdma.ecc_irq,
-                                  AMDGPU_SDMA_IRQ_INSTANCE0 + i);
-               if (r)
-                       goto irq;
+       if (amdgpu_ras_is_supported(adev, adev->sdma.ras_if->block)) {
+               for (i = 0; i < adev->sdma.num_instances; i++) {
+                       r = amdgpu_irq_get(adev, &adev->sdma.ecc_irq,
+                               AMDGPU_SDMA_IRQ_INSTANCE0 + i);
+                       if (r)
+                               goto late_fini;
+               }
        }
 
-       return 0;
-irq:
-       amdgpu_ras_sysfs_remove(adev, *ras_if);
-sysfs:
-       amdgpu_ras_debugfs_remove(adev, *ras_if);
-       amdgpu_ras_interrupt_remove_handler(adev, &ih_info);
-interrupt:
-       amdgpu_ras_feature_enable(adev, *ras_if, 0);
-feature:
-       kfree(*ras_if);
-       *ras_if = NULL;
+        return 0;
+late_fini:
+       amdgpu_ras_late_fini(adev, adev->sdma.ras_if, &ih_info);
+free:
+       kfree(adev->sdma.ras_if);
        return r;
 }