github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-03 20:14:06 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

accel/amdxdna: Call dma_buf_vmap_unlocked() for imported object

Browse Source 
In amdxdna_gem_obj_vmap(), calling dma_buf_vmap() triggers a kernel
warning if LOCKDEP is enabled. So for imported object, use
dma_buf_vmap_unlocked(). Then, use drm_gem_vmap() for other objects.
The similar change applies to vunmap code.

Fixes: bd72d4acda ("accel/amdxdna: Support user space allocated buffer")
Reviewed-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20250916174842.234709-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou 2025-09-16 10:48:42 -07:00
parent 091767ee75
commit 457f4393d0
1 changed files with 20 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/accel/amdxdna/amdxdna_gem.c
View File

@ -392,35 +392,33 @@ static const struct dma_buf_ops amdxdna_dmabuf_ops = {
.vunmap = drm_gem_dmabuf_vunmap,
};
static int amdxdna_gem_obj_vmap(struct drm_gem_object *obj, struct iosys_map *map)
static int amdxdna_gem_obj_vmap(struct amdxdna_gem_obj *abo, void **vaddr)
{
struct amdxdna_gem_obj *abo = to_xdna_obj(obj);
iosys_map_clear(map);
dma_resv_assert_held(obj->resv);
struct iosys_map map = IOSYS_MAP_INIT_VADDR(NULL);
int ret;
if (is_import_bo(abo))
dma_buf_vmap(abo->dma_buf, map);
ret = dma_buf_vmap_unlocked(abo->dma_buf, &map);
else
drm_gem_shmem_object_vmap(obj, map);
ret = drm_gem_vmap(to_gobj(abo), &map);
if (!map->vaddr)
return -ENOMEM;
return 0;
*vaddr = map.vaddr;
return ret;
}
static void amdxdna_gem_obj_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
static void amdxdna_gem_obj_vunmap(struct amdxdna_gem_obj *abo)
{
struct amdxdna_gem_obj *abo = to_xdna_obj(obj);
struct iosys_map map;
dma_resv_assert_held(obj->resv);
if (!abo->mem.kva)
return;
iosys_map_set_vaddr(&map, abo->mem.kva);
if (is_import_bo(abo))
dma_buf_vunmap(abo->dma_buf, map);
dma_buf_vunmap_unlocked(abo->dma_buf, &map);
else
drm_gem_shmem_object_vunmap(obj, map);
drm_gem_vunmap(to_gobj(abo), &map);
}
static struct dma_buf *amdxdna_gem_prime_export(struct drm_gem_object *gobj, int flags)
@ -455,7 +453,6 @@ static void amdxdna_gem_obj_free(struct drm_gem_object *gobj)
{
struct amdxdna_dev *xdna = to_xdna_dev(gobj->dev);
struct amdxdna_gem_obj *abo = to_xdna_obj(gobj);
struct iosys_map map = IOSYS_MAP_INIT_VADDR(abo->mem.kva);
XDNA_DBG(xdna, "BO type %d xdna_addr 0x%llx", abo->type, abo->mem.dev_addr);
@ -468,7 +465,7 @@ static void amdxdna_gem_obj_free(struct drm_gem_object *gobj)
if (abo->type == AMDXDNA_BO_DEV_HEAP)
drm_mm_takedown(&abo->mm);
drm_gem_vunmap(gobj, &map);
amdxdna_gem_obj_vunmap(abo);
mutex_destroy(&abo->lock);
if (is_import_bo(abo)) {
@ -489,8 +486,8 @@ static const struct drm_gem_object_funcs amdxdna_gem_shmem_funcs = {
.pin = drm_gem_shmem_object_pin,
.unpin = drm_gem_shmem_object_unpin,
.get_sg_table = drm_gem_shmem_object_get_sg_table,
.vmap = amdxdna_gem_obj_vmap,
.vunmap = amdxdna_gem_obj_vunmap,
.vmap = drm_gem_shmem_object_vmap,
.vunmap = drm_gem_shmem_object_vunmap,
.mmap = amdxdna_gem_obj_mmap,
.vm_ops = &drm_gem_shmem_vm_ops,
.export = amdxdna_gem_prime_export,
@ -663,7 +660,6 @@ amdxdna_drm_create_dev_heap(struct drm_device *dev,
struct drm_file *filp)
{
struct amdxdna_client *client = filp->driver_priv;
struct iosys_map map = IOSYS_MAP_INIT_VADDR(NULL);
struct amdxdna_dev *xdna = to_xdna_dev(dev);
struct amdxdna_gem_obj *abo;
int ret;
@ -692,12 +688,11 @@ amdxdna_drm_create_dev_heap(struct drm_device *dev,
abo->mem.dev_addr = client->xdna->dev_info->dev_mem_base;
drm_mm_init(&abo->mm, abo->mem.dev_addr, abo->mem.size);
ret = drm_gem_vmap(to_gobj(abo), &map);
ret = amdxdna_gem_obj_vmap(abo, &abo->mem.kva);
if (ret) {
XDNA_ERR(xdna, "Vmap heap bo failed, ret %d", ret);
goto release_obj;
}
abo->mem.kva = map.vaddr;
client->dev_heap = abo;
drm_gem_object_get(to_gobj(abo));
@ -748,7 +743,6 @@ amdxdna_drm_create_cmd_bo(struct drm_device *dev,
struct amdxdna_drm_create_bo *args,
struct drm_file *filp)
{
struct iosys_map map = IOSYS_MAP_INIT_VADDR(NULL);
struct amdxdna_dev *xdna = to_xdna_dev(dev);
struct amdxdna_gem_obj *abo;
int ret;
@ -770,12 +764,11 @@ amdxdna_drm_create_cmd_bo(struct drm_device *dev,
abo->type = AMDXDNA_BO_CMD;
abo->client = filp->driver_priv;
ret = drm_gem_vmap(to_gobj(abo), &map);
ret = amdxdna_gem_obj_vmap(abo, &abo->mem.kva);
if (ret) {
XDNA_ERR(xdna, "Vmap cmd bo failed, ret %d", ret);
goto release_obj;
}
abo->mem.kva = map.vaddr;
return abo;