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drm-shim: Add GET_UNIQUE support 

Needed by drmOpenWithType(), which is used by virgl drm native context.
(We want to use drm-shim for fuzzing.)

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16250>
This commit is contained in:
Rob Clark 2022-04-27 14:53:19 -07:00 committed by Marge Bot
parent bf04be17f7
commit a922997ffd
2 changed files with 17 additions and 0 deletions
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13
src/drm-shim/device.c
View File

@ -179,6 +179,18 @@ drm_shim_ioctl_version(int fd, unsigned long request, void *arg)
return 0;
}
static int
drm_shim_ioctl_get_unique(int fd, unsigned long request, void *arg)
{
struct drm_unique *gu = arg;
if (gu->unique && shim_device.unique)
strncpy(gu->unique, shim_device.unique, gu->unique_len);
gu->unique_len = shim_device.unique ? strlen(shim_device.unique) : 0;
return 0;
}
static int
drm_shim_ioctl_get_cap(int fd, unsigned long request, void *arg)
{
@ -240,6 +252,7 @@ drm_shim_ioctl_stub(int fd, unsigned long request, void *arg)
ioctl_fn_t core_ioctls[] = {
[_IOC_NR(DRM_IOCTL_VERSION)] = drm_shim_ioctl_version,
[_IOC_NR(DRM_IOCTL_GET_UNIQUE)] = drm_shim_ioctl_get_unique,
[_IOC_NR(DRM_IOCTL_GET_CAP)] = drm_shim_ioctl_get_cap,
[_IOC_NR(DRM_IOCTL_GEM_CLOSE)] = drm_shim_ioctl_gem_close,
[_IOC_NR(DRM_IOCTL_SYNCOBJ_CREATE)] = drm_shim_ioctl_syncobj_create,

4
src/drm-shim/drm_shim.h
View File

@ -54,6 +54,10 @@ struct shim_device {
/* Returned by drmGetVersion(). */
const char *driver_name;
/* Returned by drmGetBusid(). */
const char *unique;
int version_major, version_minor, version_patchlevel;
int bus_type;
};