The commit
d41b7a3a745a("exynos: Don't use DRM_EXYNOS_GEM_{MAP_OFFSET/
MMAP} ioctls") removed it same with the ioctl that this patch adds. The
reason that removed DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET was we could use
DRM_IOCTL_MODE_MAP_DUMB. Both did exactly same thing.
Now exynos-drm driver of linux kernel revives it as DRM_EXYNOS_GEM_MAP
because of render node. DRM_IOCTL_MODE_MAP_DUMB isn't permitted in
render node, so this patch also supports DRM_IOCTL_EXYNOS_GEM_MAP.
Change-Id: Ib548dc8a6bea076375465f64ee2fdd658a90e435
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
{
if (!bo->vaddr) {
struct exynos_device *dev = bo->dev;
- struct drm_mode_map_dumb arg;
+ struct drm_exynos_gem_map arg;
void *map = NULL;
int ret;
memset(&arg, 0, sizeof(arg));
arg.handle = bo->handle;
- ret = drmIoctl(dev->fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
+ ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_MAP, &arg);
if (ret) {
fprintf(stderr, "failed to map dumb buffer[%s].\n",
strerror(errno));
};
/**
+ * A structure for getting a fake-offset that can be used with mmap.
+ *
+ * @handle: handle of gem object.
+ * @reserved: just padding to be 64-bit aligned.
+ * @offset: a fake-offset of gem object.
+ */
+struct drm_exynos_gem_map {
+ __u32 handle;
+ __u32 reserved;
+ __u64 offset;
+};
+
+/**
* A structure to gem information.
*
* @handle: a handle to gem object created.
};
#define DRM_EXYNOS_GEM_CREATE 0x00
+#define DRM_EXYNOS_GEM_MAP 0x01
/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
#define DRM_EXYNOS_GEM_GET 0x04
#define DRM_EXYNOS_VIDI_CONNECTION 0x07
#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
-
+#define DRM_IOCTL_EXYNOS_GEM_MAP DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_EXYNOS_GEM_MAP, struct drm_exynos_gem_map)
#define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info)
exynos_bo_map(struct kms_bo *_bo, void **out)
{
struct exynos_bo *bo = (struct exynos_bo *)_bo;
- struct drm_mode_map_dumb arg;
+ struct drm_exynos_gem_map arg;
void *map = NULL;
int ret;
memset(&arg, 0, sizeof(arg));
arg.handle = bo->base.handle;
- ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
+ ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_EXYNOS_GEM_MAP, &arg);
if (ret)
return ret;
{
int ret;
void *map;
- struct drm_mode_map_dumb arg;
+ struct drm_exynos_gem_map arg;
memset(&arg, 0, sizeof(arg));
arg.handle = in_mmap->handle;
- ret = ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
+ ret = ioctl(fd, DRM_IOCTL_EXYNOS_GEM_MAP, &arg);
if (ret) {
fprintf(stderr, "failed to map dumb buffer: %s\n",
strerror(errno));
{
int ret;
void *map;
- struct drm_mode_map_dumb arg;
+ struct drm_exynos_gem_map arg;
memset(&arg, 0, sizeof(arg));
arg.handle = in_mmap->handle;
- ret = ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
+ ret = ioctl(fd, DRM_IOCTL_EXYNOS_GEM_MAP, &arg);
if (ret) {
fprintf(stderr, "failed to map dumb buffer: %s\n",
strerror(errno));