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authorDave Airlie <airlied@gmail.com>2023-12-22 14:31:57 +1000
committerDave Airlie <airlied@redhat.com>2024-01-05 12:27:53 +1000
commit4ae3a20102b20d1927737e1a78615386d58e194d (patch)
treeb8e71e94c58f3d4c125cc806531a2b3f9d913a34 /drivers/gpu/drm/nouveau/include/nvkm
parent59f6a3d8db2573aba994b95074d8f9911c969bcb (diff)
nouveau/gsp: don't free ctrl messages on errors
It looks like for some messages the upper layers need to get access to the results of the message so we can interpret it. Rework the ctrl push interface to not free things and cleanup properly whereever it errors out. Requested-by: Lyude Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231222043308.3090089-9-airlied@gmail.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm')
-rw-r--r--drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h
index 2fa0445d8928..d1437c08645f 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h
@@ -187,7 +187,7 @@ struct nvkm_gsp {
void (*rpc_done)(struct nvkm_gsp *gsp, void *repv);
void *(*rm_ctrl_get)(struct nvkm_gsp_object *, u32 cmd, u32 argc);
- void *(*rm_ctrl_push)(struct nvkm_gsp_object *, void *argv, u32 repc);
+ int (*rm_ctrl_push)(struct nvkm_gsp_object *, void **argv, u32 repc);
void (*rm_ctrl_done)(struct nvkm_gsp_object *, void *repv);
void *(*rm_alloc_get)(struct nvkm_gsp_object *, u32 oclass, u32 argc);
@@ -265,7 +265,7 @@ nvkm_gsp_rm_ctrl_get(struct nvkm_gsp_object *object, u32 cmd, u32 argc)
return object->client->gsp->rm->rm_ctrl_get(object, cmd, argc);
}
-static inline void *
+static inline int
nvkm_gsp_rm_ctrl_push(struct nvkm_gsp_object *object, void *argv, u32 repc)
{
return object->client->gsp->rm->rm_ctrl_push(object, argv, repc);
@@ -275,21 +275,24 @@ static inline void *
nvkm_gsp_rm_ctrl_rd(struct nvkm_gsp_object *object, u32 cmd, u32 repc)
{
void *argv = nvkm_gsp_rm_ctrl_get(object, cmd, repc);
+ int ret;
if (IS_ERR(argv))
return argv;
- return nvkm_gsp_rm_ctrl_push(object, argv, repc);
+ ret = nvkm_gsp_rm_ctrl_push(object, &argv, repc);
+ if (ret)
+ return ERR_PTR(ret);
+ return argv;
}
static inline int
nvkm_gsp_rm_ctrl_wr(struct nvkm_gsp_object *object, void *argv)
{
- void *repv = nvkm_gsp_rm_ctrl_push(object, argv, 0);
-
- if (IS_ERR(repv))
- return PTR_ERR(repv);
+ int ret = nvkm_gsp_rm_ctrl_push(object, &argv, 0);
+ if (ret)
+ return ret;
return 0;
}