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bbc2cd07
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bbc2cd07
编写于
1月 09, 2019
作者:
R
Rob Clark
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
drm/msm: honor GPU_READONLY flag
Signed-off-by:
N
Rob Clark
<
robdclark@gmail.com
>
上级
895ad6b0
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
11 addition
and
5 deletion
+11
-5
drivers/gpu/drm/msm/msm_drv.h
drivers/gpu/drm/msm/msm_drv.h
+2
-1
drivers/gpu/drm/msm/msm_gem.c
drivers/gpu/drm/msm/msm_gem.c
+6
-2
drivers/gpu/drm/msm/msm_gem_vma.c
drivers/gpu/drm/msm/msm_gem_vma.c
+3
-2
未找到文件。
drivers/gpu/drm/msm/msm_drv.h
浏览文件 @
bbc2cd07
...
...
@@ -250,7 +250,8 @@ void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
void
msm_gem_unmap_vma
(
struct
msm_gem_address_space
*
aspace
,
struct
msm_gem_vma
*
vma
);
int
msm_gem_map_vma
(
struct
msm_gem_address_space
*
aspace
,
struct
msm_gem_vma
*
vma
,
struct
sg_table
*
sgt
,
int
npages
);
struct
msm_gem_vma
*
vma
,
int
prot
,
struct
sg_table
*
sgt
,
int
npages
);
void
msm_gem_close_vma
(
struct
msm_gem_address_space
*
aspace
,
struct
msm_gem_vma
*
vma
);
...
...
drivers/gpu/drm/msm/msm_gem.c
浏览文件 @
bbc2cd07
...
...
@@ -391,6 +391,10 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
struct
msm_gem_object
*
msm_obj
=
to_msm_bo
(
obj
);
struct
msm_gem_vma
*
vma
;
struct
page
**
pages
;
int
prot
=
IOMMU_READ
;
if
(
!
(
msm_obj
->
flags
&
MSM_BO_GPU_READONLY
))
prot
|=
IOMMU_WRITE
;
WARN_ON
(
!
mutex_is_locked
(
&
msm_obj
->
lock
));
...
...
@@ -405,8 +409,8 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
if
(
IS_ERR
(
pages
))
return
PTR_ERR
(
pages
);
return
msm_gem_map_vma
(
aspace
,
vma
,
msm_obj
->
sg
t
,
obj
->
size
>>
PAGE_SHIFT
);
return
msm_gem_map_vma
(
aspace
,
vma
,
pro
t
,
msm_obj
->
sgt
,
obj
->
size
>>
PAGE_SHIFT
);
}
/* get iova and pin it. Should have a matching put */
...
...
drivers/gpu/drm/msm/msm_gem_vma.c
浏览文件 @
bbc2cd07
...
...
@@ -68,7 +68,8 @@ void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
int
msm_gem_map_vma
(
struct
msm_gem_address_space
*
aspace
,
struct
msm_gem_vma
*
vma
,
struct
sg_table
*
sgt
,
int
npages
)
struct
msm_gem_vma
*
vma
,
int
prot
,
struct
sg_table
*
sgt
,
int
npages
)
{
unsigned
size
=
npages
<<
PAGE_SHIFT
;
int
ret
=
0
;
...
...
@@ -86,7 +87,7 @@ msm_gem_map_vma(struct msm_gem_address_space *aspace,
if
(
aspace
->
mmu
)
ret
=
aspace
->
mmu
->
funcs
->
map
(
aspace
->
mmu
,
vma
->
iova
,
sgt
,
size
,
IOMMU_READ
|
IOMMU_WRITE
);
size
,
prot
);
if
(
ret
)
vma
->
mapped
=
false
;
...
...
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