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drm/msm: rework GEM_INFO ioctl

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Prep work to add a way to get/set the GEM objects debug name.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2018-11-29 09:54:42 -05:00
commit 789d2e5a77
2 changed files with 32 additions and 14 deletions
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18
include/uapi/drm/msm_drm.h
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@ -105,14 +105,22 @@ struct drm_msm_gem_new {
__u32 handle; /* out */
};
#define MSM_INFO_IOVA 0x01
#define MSM_INFO_FLAGS (MSM_INFO_IOVA)
/* Get or set GEM buffer info. The requested value can be passed
* directly in 'value', or for data larger than 64b 'value' is a
* pointer to userspace buffer, with 'len' specifying the number of
* bytes copied into that buffer. For info returned by pointer,
* calling the GEM_INFO ioctl with null 'value' will return the
* required buffer size in 'len'
*/
#define MSM_INFO_GET_OFFSET 0x00 /* get mmap() offset, returned by value */
#define MSM_INFO_GET_IOVA 0x01 /* get iova, returned by value */
struct drm_msm_gem_info {
__u32 handle; /* in */
__u32 flags; /* in - combination of MSM_INFO_* flags */
__u64 offset; /* out, mmap() offset or iova */
__u32 info; /* in - one of MSM_INFO_* */
__u64 value; /* in or out */
__u32 len; /* in or out */
__u32 pad;
};
#define MSM_PREP_READ 0x01