diff options
| author | Lizhi Hou <lizhi.hou@amd.com> | 2025-07-16 09:44:14 -0700 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2025-07-22 08:34:29 -0700 |
| commit | bd72d4acda1069579b35123e3cc0b21ec1193a21 (patch) | |
| tree | 71a0e3c6bc2e348027add08b566363eb2c0ff577 /include/uapi | |
| parent | 956f82e529dd283382f080273ed3b8db1e978699 (diff) | |
accel/amdxdna: Support user space allocated buffer
Enhance DRM_IOCTL_AMDXDNA_CREATE_BO to accept user space allocated
buffer pointer. The buffer pages will be pinned in memory. Unless
the CAP_IPC_LOCK is enabled for the application process, the total
pinned memory can not beyond rlimit_memlock.
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/r/20250716164414.112091-1-lizhi.hou@amd.com
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/amdxdna_accel.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h index a706ead39082..ce523e9ccc52 100644 --- a/include/uapi/drm/amdxdna_accel.h +++ b/include/uapi/drm/amdxdna_accel.h @@ -154,6 +154,31 @@ enum amdxdna_bo_type { }; /** + * struct amdxdna_drm_va_entry + * @vaddr: Virtual address. + * @len: Size of entry. + */ +struct amdxdna_drm_va_entry { + __u64 vaddr; + __u64 len; +}; + +/** + * struct amdxdna_drm_va_tbl + * @dmabuf_fd: The fd of dmabuf. + * @num_entries: Number of va entries. + * @va_entries: Array of va entries. + * + * The input can be either a dmabuf fd or a virtual address entry table. + * When dmabuf_fd is used, num_entries must be zero. + */ +struct amdxdna_drm_va_tbl { + __s32 dmabuf_fd; + __u32 num_entries; + struct amdxdna_drm_va_entry va_entries[]; +}; + +/** * struct amdxdna_drm_create_bo - Create a buffer object. * @flags: Buffer flags. MBZ. * @vaddr: User VA of buffer if applied. MBZ. |