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drm: add master set/drop protocol 

this may not survive long - just need something for testing
main
Dave Airlie 2008-03-17 16:37:46 +10:00
parent 2d0411cb75
commit 607964ed9e
6 changed files with 53 additions and 0 deletions
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17
libdrm/xf86drm.c
View File

@ -2977,3 +2977,20 @@ void drmCloseOnce(int fd)
}
}
}
int drmSetMaster(int fd)
{
int ret;
fprintf(stderr,"Setting master \n");
ret = ioctl(fd, DRM_IOCTL_SET_MASTER, 0);
return ret;
}
int drmDropMaster(int fd)
{
int ret;
fprintf(stderr,"Dropping master \n");
ret = ioctl(fd, DRM_IOCTL_DROP_MASTER, 0);
return ret;
}

3
libdrm/xf86drm.h
View File

@ -660,6 +660,9 @@ extern int drmSLLookupNeighbors(void *l, unsigned long key,
extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
extern void drmCloseOnce(int fd);
extern int drmSetMaster(int fd);
extern int drmDropMaster(int fd);
#include "xf86mm.h"
#endif

4
linux-core/drmP.h
View File

@ -1266,6 +1266,10 @@ extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
extern struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev);
extern void drm_agp_chipset_flush(struct drm_device *dev);
/* Stub support (drm_stub.h) */
extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern struct drm_master *drm_get_master(struct drm_minor *minor);
extern void drm_put_master(struct drm_master *master);
extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,

3
linux-core/drm_drv.c
View File

@ -76,6 +76,9 @@ static struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),

23
linux-core/drm_stub.c
View File

@ -88,6 +88,29 @@ again:
return new_id;
}
int drm_setmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
return -EINVAL;
if (!file_priv->master)
return -EINVAL;
if (!file_priv->minor->master && file_priv->minor->master != file_priv->master)
file_priv->minor->master = file_priv->master;
return 0;
}
int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
if (!file_priv->master)
return -EINVAL;
file_priv->minor->master = NULL;
return 0;
}
struct drm_master *drm_get_master(struct drm_minor *minor)
{
struct drm_master *master;

3
shared-core/drm.h
View File

@ -1200,6 +1200,9 @@ struct drm_mode_hotplug {
#define DRM_IOCTL_SET_SAREA_CTX DRM_IOW( 0x1c, struct drm_ctx_priv_map)
#define DRM_IOCTL_GET_SAREA_CTX DRM_IOWR(0x1d, struct drm_ctx_priv_map)
#define DRM_IOCTL_SET_MASTER DRM_IO(0x1e)
#define DRM_IOCTL_DROP_MASTER DRM_IO(0x1f)
#define DRM_IOCTL_ADD_CTX DRM_IOWR(0x20, struct drm_ctx)
#define DRM_IOCTL_RM_CTX DRM_IOWR(0x21, struct drm_ctx)
#define DRM_IOCTL_MOD_CTX DRM_IOW( 0x22, struct drm_ctx)