drm: Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.
The data is now in kernel space, copied in/out as appropriate according to t
This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal
with those failures. This also means that XFree86 4.2.0 support for i810 DR
is lost.
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drm_context.c b/drivers/char/drm/drm_context.c
index 4037a36..17fe69e 100644
--- a/drivers/char/drm/drm_context.c
+++ b/drivers/char/drm/drm_context.c
@@ -139,21 +139,16 @@
* Gets the map from drm_device::ctx_idr with the handle specified and
* returns its handle.
*/
-int drm_getsareactx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_ctx_priv_map __user *argp = (void __user *)arg;
- struct drm_ctx_priv_map request;
+ struct drm_ctx_priv_map *request = data;
struct drm_map *map;
struct drm_map_list *_entry;
- if (copy_from_user(&request, argp, sizeof(request)))
- return -EFAULT;
-
mutex_lock(&dev->struct_mutex);
- map = idr_find(&dev->ctx_idr, request.ctx_id);
+ map = idr_find(&dev->ctx_idr, request->ctx_id);
if (!map) {
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
@@ -161,19 +156,17 @@
mutex_unlock(&dev->struct_mutex);
- request.handle = NULL;
+ request->handle = NULL;
list_for_each_entry(_entry, &dev->maplist, head) {
if (_entry->map == map) {
- request.handle =
+ request->handle =
(void *)(unsigned long)_entry->user_token;
break;
}
}
- if (request.handle == NULL)
+ if (request->handle == NULL)
return -EINVAL;
- if (copy_to_user(argp, &request, sizeof(request)))
- return -EFAULT;
return 0;
}
@@ -189,23 +182,17 @@
* Searches the mapping specified in \p arg and update the entry in
* drm_device::ctx_idr with it.
*/
-int drm_setsareactx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_ctx_priv_map request;
+ struct drm_ctx_priv_map *request = data;
struct drm_map *map = NULL;
struct drm_map_list *r_list = NULL;
- if (copy_from_user(&request,
- (struct drm_ctx_priv_map __user *) arg,
- sizeof(request)))
- return -EFAULT;
-
mutex_lock(&dev->struct_mutex);
list_for_each_entry(r_list, &dev->maplist, head) {
if (r_list->map
- && r_list->user_token == (unsigned long)request.handle)
+ && r_list->user_token == (unsigned long) request->handle)
goto found;
}
bad:
@@ -217,10 +204,11 @@
if (!map)
goto bad;
- if (IS_ERR(idr_replace(&dev->ctx_idr, map, request.ctx_id)))
+ if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id)))
goto bad;
mutex_unlock(&dev->struct_mutex);
+
return 0;
}
@@ -295,29 +283,23 @@
* \param arg user argument pointing to a drm_ctx_res structure.
* \return zero on success or a negative number on failure.
*/
-int drm_resctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_ctx_res res;
- struct drm_ctx_res __user *argp = (void __user *)arg;
+ struct drm_ctx_res *res = data;
struct drm_ctx ctx;
int i;
- if (copy_from_user(&res, argp, sizeof(res)))
- return -EFAULT;
-
- if (res.count >= DRM_RESERVED_CONTEXTS) {
+ if (res->count >= DRM_RESERVED_CONTEXTS) {
memset(&ctx, 0, sizeof(ctx));
for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
ctx.handle = i;
- if (copy_to_user(&res.contexts[i], &ctx, sizeof(ctx)))
+ if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx)))
return -EFAULT;
}
}
- res.count = DRM_RESERVED_CONTEXTS;
+ res->count = DRM_RESERVED_CONTEXTS;
- if (copy_to_user(argp, &res, sizeof(res)))
- return -EFAULT;
return 0;
}
@@ -332,32 +314,27 @@
*
* Get a new handle for the context and copy to userspace.
*/
-int drm_addctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
struct drm_ctx_list *ctx_entry;
- struct drm_ctx __user *argp = (void __user *)arg;
- struct drm_ctx ctx;
+ struct drm_ctx *ctx = data;
- if (copy_from_user(&ctx, argp, sizeof(ctx)))
- return -EFAULT;
-
- ctx.handle = drm_ctxbitmap_next(dev);
- if (ctx.handle == DRM_KERNEL_CONTEXT) {
+ ctx->handle = drm_ctxbitmap_next(dev);
+ if (ctx->handle == DRM_KERNEL_CONTEXT) {
/* Skip kernel's context and get a new one. */
- ctx.handle = drm_ctxbitmap_next(dev);
+ ctx->handle = drm_ctxbitmap_next(dev);
}
- DRM_DEBUG("%d\n", ctx.handle);
- if (ctx.handle == -1) {
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == -1) {
DRM_DEBUG("Not enough free contexts.\n");
/* Should this return -EBUSY instead? */
return -ENOMEM;
}
- if (ctx.handle != DRM_KERNEL_CONTEXT) {
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
if (dev->driver->context_ctor)
- if (!dev->driver->context_ctor(dev, ctx.handle)) {
+ if (!dev->driver->context_ctor(dev, ctx->handle)) {
DRM_DEBUG("Running out of ctxs or memory.\n");
return -ENOMEM;
}
@@ -370,7 +347,7 @@
}
INIT_LIST_HEAD(&ctx_entry->head);
- ctx_entry->handle = ctx.handle;
+ ctx_entry->handle = ctx->handle;
ctx_entry->tag = file_priv;
mutex_lock(&dev->ctxlist_mutex);
@@ -378,13 +355,10 @@
++dev->ctx_count;
mutex_unlock(&dev->ctxlist_mutex);
- if (copy_to_user(argp, &ctx, sizeof(ctx)))
- return -EFAULT;
return 0;
}
-int drm_modctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
/* This does nothing */
return 0;
@@ -399,20 +373,13 @@
* \param arg user argument pointing to a drm_ctx structure.
* \return zero on success or a negative number on failure.
*/
-int drm_getctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
- struct drm_ctx __user *argp = (void __user *)arg;
- struct drm_ctx ctx;
-
- if (copy_from_user(&ctx, argp, sizeof(ctx)))
- return -EFAULT;
+ struct drm_ctx *ctx = data;
/* This is 0, because we don't handle any context flags */
- ctx.flags = 0;
+ ctx->flags = 0;
- if (copy_to_user(argp, &ctx, sizeof(ctx)))
- return -EFAULT;
return 0;
}
@@ -427,17 +394,13 @@
*
* Calls context_switch().
*/
-int drm_switchctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_ctx ctx;
+ struct drm_ctx *ctx = data;
- if (copy_from_user(&ctx, (struct drm_ctx __user *) arg, sizeof(ctx)))
- return -EFAULT;
-
- DRM_DEBUG("%d\n", ctx.handle);
- return drm_context_switch(dev, dev->last_context, ctx.handle);
+ DRM_DEBUG("%d\n", ctx->handle);
+ return drm_context_switch(dev, dev->last_context, ctx->handle);
}
/**
@@ -451,17 +414,13 @@
*
* Calls context_switch_complete().
*/
-int drm_newctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_ctx ctx;
+ struct drm_ctx *ctx = data;
- if (copy_from_user(&ctx, (struct drm_ctx __user *) arg, sizeof(ctx)))
- return -EFAULT;
-
- DRM_DEBUG("%d\n", ctx.handle);
- drm_context_switch_complete(dev, ctx.handle);
+ DRM_DEBUG("%d\n", ctx->handle);
+ drm_context_switch_complete(dev, ctx->handle);
return 0;
}
@@ -477,23 +436,19 @@
*
* If not the special kernel context, calls ctxbitmap_free() to free the specified context.
*/
-int drm_rmctx(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_ctx ctx;
+ struct drm_ctx *ctx = data;
- if (copy_from_user(&ctx, (struct drm_ctx __user *) arg, sizeof(ctx)))
- return -EFAULT;
-
- DRM_DEBUG("%d\n", ctx.handle);
- if (ctx.handle == DRM_KERNEL_CONTEXT + 1) {
+ DRM_DEBUG("%d\n", ctx->handle);
+ if (ctx->handle == DRM_KERNEL_CONTEXT + 1) {
file_priv->remove_auth_on_close = 1;
}
- if (ctx.handle != DRM_KERNEL_CONTEXT) {
+ if (ctx->handle != DRM_KERNEL_CONTEXT) {
if (dev->driver->context_dtor)
- dev->driver->context_dtor(dev, ctx.handle);
- drm_ctxbitmap_free(dev, ctx.handle);
+ dev->driver->context_dtor(dev, ctx->handle);
+ drm_ctxbitmap_free(dev, ctx->handle);
}
mutex_lock(&dev->ctxlist_mutex);
@@ -501,7 +456,7 @@
struct drm_ctx_list *pos, *n;
list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
- if (pos->handle == ctx.handle) {
+ if (pos->handle == ctx->handle) {
list_del(&pos->head);
drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST);
--dev->ctx_count;
