#include <linux/vmalloc.h>
#include "drmP.h"
-unsigned long drm_get_resource_start(drm_device_t * dev, unsigned int resource)
+unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource)
{
return pci_resource_start(dev->pdev, resource);
}
-
EXPORT_SYMBOL(drm_get_resource_start);
-unsigned long drm_get_resource_len(drm_device_t * dev, unsigned int resource)
+unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource)
{
return pci_resource_len(dev->pdev, resource);
}
EXPORT_SYMBOL(drm_get_resource_len);
-static drm_map_list_t *drm_find_matching_map(drm_device_t * dev,
- drm_local_map_t * map)
+static drm_map_list_t *drm_find_matching_map(drm_device_t *dev,
+ drm_local_map_t *map)
{
struct list_head *list;
#ifdef _LP64
static __inline__ unsigned int HandleID(unsigned long lhandle,
- drm_device_t * dev)
+ drm_device_t *dev)
{
static unsigned int map32_handle = START_RANGE;
unsigned int hash;
case _DRM_REGISTERS:
case _DRM_FRAME_BUFFER:
#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__)
- if (map->offset + map->size < map->offset ||
+ if (map->offset + (map->size-1) < map->offset ||
map->offset < virt_to_phys(high_memory)) {
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
return -EINVAL;
memset(list, 0, sizeof(*list));
list->map = map;
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
list_add(&list->head, &dev->maplist->head);
/* Assign a 32-bit handle */
- /* We do it here so that dev->struct_sem protects the increment */
+ /* We do it here so that dev->struct_mutex protects the increment */
list->user_token = HandleID(map->type == _DRM_SHM
? (unsigned long)map->handle
: map->offset, dev);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
*maplist = list;
return 0;
return -EFAULT;
}
+ if (!(capable(CAP_SYS_ADMIN) || map.type == _DRM_AGP))
+ return -EPERM;
+
err = drm_addmap_core(dev, map.offset, map.size, map.type, map.flags,
&maplist);
*
* \sa drm_addmap
*/
-int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map)
+int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map)
{
struct list_head *list;
drm_map_list_t *r_list = NULL;
return 0;
}
-
EXPORT_SYMBOL(drm_rmmap_locked);
-int drm_rmmap(drm_device_t * dev, drm_local_map_t * map)
+int drm_rmmap(drm_device_t *dev, drm_local_map_t *map)
{
int ret;
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
ret = drm_rmmap_locked(dev, map);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
return ret;
}
-
EXPORT_SYMBOL(drm_rmmap);
/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on
return -EFAULT;
}
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
list_for_each(list, &dev->maplist->head) {
drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
* find anything.
*/
if (list == (&dev->maplist->head)) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
/* Register and framebuffer maps are permanent */
if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
return 0;
}
ret = drm_rmmap_locked(dev, map);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
return ret;
}
DRM_DEBUG("count: %d\n", count);
DRM_DEBUG("order: %d\n", order);
DRM_DEBUG("size: %d\n", size);
- DRM_DEBUG("agp_offset: %lu\n", agp_offset);
+ DRM_DEBUG("agp_offset: %lx\n", agp_offset);
DRM_DEBUG("alignment: %d\n", alignment);
DRM_DEBUG("page_order: %d\n", page_order);
DRM_DEBUG("total: %d\n", total);
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
}
dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
dma->byte_count += byte_count;
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
atomic_dec(&dev->buf_alloc);
return 0;
}
-
EXPORT_SYMBOL(drm_addbufs_agp);
#endif /* __OS_HAS_AGP */
if (!drm_core_check_feature(dev, DRIVER_PCI_DMA))
return -EINVAL;
+
if (!dma)
return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
count = request->count;
order = drm_order(request->size);
size = 1 << order;
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
if (!entry->seglist) {
drm_free(entry->buflist,
count * sizeof(*entry->buflist), DRM_MEM_BUFS);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
count * sizeof(*entry->buflist), DRM_MEM_BUFS);
drm_free(entry->seglist,
count * sizeof(*entry->seglist), DRM_MEM_SEGS);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
drm_free(temp_pagelist,
(dma->page_count + (count << page_order))
* sizeof(*dma->pagelist), DRM_MEM_PAGES);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
(count << page_order))
* sizeof(*dma->pagelist),
DRM_MEM_PAGES);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
drm_free(temp_pagelist,
(dma->page_count + (count << page_order))
* sizeof(*dma->pagelist), DRM_MEM_PAGES);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
dma->page_count += entry->seg_count << page_order;
dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
return 0;
}
-
EXPORT_SYMBOL(drm_addbufs_pci);
static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request)
if (!dma)
return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
count = request->count;
order = drm_order(request->size);
size = 1 << order;
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
}
dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
dma->byte_count += byte_count;
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
return 0;
}
-static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
+int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_entry_t *entry;
if (!dma)
return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
count = request->count;
order = drm_order(request->size);
size = 1 << order;
atomic_inc(&dev->buf_alloc);
spin_unlock(&dev->count_lock);
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
entry = &dma->bufs[order];
if (entry->buf_count) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM; /* May only call once for each order */
}
if (count < 0 || count > 4096) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -EINVAL;
}
entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
DRM_MEM_BUFS);
if (!entry->buflist) {
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
/* Set count correctly so we free the proper amount. */
entry->buf_count = count;
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
if (!temp_buflist) {
/* Free the entry because it isn't valid */
drm_cleanup_buf_error(dev, entry);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
atomic_dec(&dev->buf_alloc);
return -ENOMEM;
}
}
dma->buf_count += entry->buf_count;
+ dma->seg_count += entry->seg_count;
+ dma->page_count += byte_count >> PAGE_SHIFT;
dma->byte_count += byte_count;
DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count);
DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count);
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
request->count = entry->buf_count;
request->size = size;
atomic_dec(&dev->buf_alloc);
return 0;
}
+EXPORT_SYMBOL(drm_addbufs_fb);
+
/**
* Add buffers for DMA transfers (ioctl).
return order;
}
-
EXPORT_SYMBOL(drm_order);
+
+
git.openpandora.org / pandora-kernel.git / blobdiff