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Diffstat (limited to 'drivers/char/drm/drm_memory.h')
-rw-r--r--drivers/char/drm/drm_memory.h73
1 files changed, 39 insertions, 34 deletions
diff --git a/drivers/char/drm/drm_memory.h b/drivers/char/drm/drm_memory.h
index 422b94268709..3732a61c3762 100644
--- a/drivers/char/drm/drm_memory.h
+++ b/drivers/char/drm/drm_memory.h
@@ -1,12 +1,12 @@
-/**
- * \file drm_memory.h
+/**
+ * \file drm_memory.h
* Memory management wrappers for DRM
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
* \author Gareth Hughes <gareth@valinux.com>
*/
-/*
+/*
* Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
@@ -40,7 +40,7 @@
/**
* Cut down version of drm_memory_debug.h, which used to be called
- * drm_memory.h.
+ * drm_memory.h.
*/
#if __OS_HAS_AGP
@@ -60,8 +60,8 @@
/*
* Find the drm_map that covers the range [offset, offset+size).
*/
-static inline drm_map_t *
-drm_lookup_map (unsigned long offset, unsigned long size, drm_device_t *dev)
+static inline drm_map_t *drm_lookup_map(unsigned long offset,
+ unsigned long size, drm_device_t * dev)
{
struct list_head *list;
drm_map_list_t *r_list;
@@ -72,16 +72,18 @@ drm_lookup_map (unsigned long offset, unsigned long size, drm_device_t *dev)
map = r_list->map;
if (!map)
continue;
- if (map->offset <= offset && (offset + size) <= (map->offset + map->size))
+ if (map->offset <= offset
+ && (offset + size) <= (map->offset + map->size))
return map;
}
return NULL;
}
-static inline void *
-agp_remap (unsigned long offset, unsigned long size, drm_device_t *dev)
+static inline void *agp_remap(unsigned long offset, unsigned long size,
+ drm_device_t * dev)
{
- unsigned long *phys_addr_map, i, num_pages = PAGE_ALIGN(size) / PAGE_SIZE;
+ unsigned long *phys_addr_map, i, num_pages =
+ PAGE_ALIGN(size) / PAGE_SIZE;
struct drm_agp_mem *agpmem;
struct page **page_map;
void *addr;
@@ -94,7 +96,8 @@ agp_remap (unsigned long offset, unsigned long size, drm_device_t *dev)
for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next)
if (agpmem->bound <= offset
- && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >= (offset + size))
+ && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
+ (offset + size))
break;
if (!agpmem)
return NULL;
@@ -109,7 +112,8 @@ agp_remap (unsigned long offset, unsigned long size, drm_device_t *dev)
if (!page_map)
return NULL;
- phys_addr_map = agpmem->memory->memory + (offset - agpmem->bound) / PAGE_SIZE;
+ phys_addr_map =
+ agpmem->memory->memory + (offset - agpmem->bound) / PAGE_SIZE;
for (i = 0; i < num_pages; ++i)
page_map[i] = pfn_to_page(phys_addr_map[i] >> PAGE_SHIFT);
addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
@@ -118,36 +122,38 @@ agp_remap (unsigned long offset, unsigned long size, drm_device_t *dev)
return addr;
}
-static inline unsigned long
-drm_follow_page (void *vaddr)
+static inline unsigned long drm_follow_page(void *vaddr)
{
- pgd_t *pgd = pgd_offset_k((unsigned long) vaddr);
- pud_t *pud = pud_offset(pgd, (unsigned long) vaddr);
- pmd_t *pmd = pmd_offset(pud, (unsigned long) vaddr);
- pte_t *ptep = pte_offset_kernel(pmd, (unsigned long) vaddr);
+ pgd_t *pgd = pgd_offset_k((unsigned long)vaddr);
+ pud_t *pud = pud_offset(pgd, (unsigned long)vaddr);
+ pmd_t *pmd = pmd_offset(pud, (unsigned long)vaddr);
+ pte_t *ptep = pte_offset_kernel(pmd, (unsigned long)vaddr);
return pte_pfn(*ptep) << PAGE_SHIFT;
}
-#else /* __OS_HAS_AGP */
+#else /* __OS_HAS_AGP */
-static inline drm_map_t *drm_lookup_map(unsigned long offset, unsigned long size, drm_device_t *dev)
+static inline drm_map_t *drm_lookup_map(unsigned long offset,
+ unsigned long size, drm_device_t * dev)
{
- return NULL;
+ return NULL;
}
-static inline void *agp_remap(unsigned long offset, unsigned long size, drm_device_t *dev)
+static inline void *agp_remap(unsigned long offset, unsigned long size,
+ drm_device_t * dev)
{
- return NULL;
+ return NULL;
}
-static inline unsigned long drm_follow_page (void *vaddr)
+static inline unsigned long drm_follow_page(void *vaddr)
{
- return 0;
+ return 0;
}
#endif
-static inline void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev)
+static inline void *drm_ioremap(unsigned long offset, unsigned long size,
+ drm_device_t * dev)
{
if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
drm_map_t *map = drm_lookup_map(offset, size, dev);
@@ -158,8 +164,8 @@ static inline void *drm_ioremap(unsigned long offset, unsigned long size, drm_de
return ioremap(offset, size);
}
-static inline void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
- drm_device_t *dev)
+static inline void *drm_ioremap_nocache(unsigned long offset,
+ unsigned long size, drm_device_t * dev)
{
if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
drm_map_t *map = drm_lookup_map(offset, size, dev);
@@ -170,7 +176,8 @@ static inline void *drm_ioremap_nocache(unsigned long offset, unsigned long size
return ioremap_nocache(offset, size);
}
-static inline void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev)
+static inline void drm_ioremapfree(void *pt, unsigned long size,
+ drm_device_t * dev)
{
/*
* This is a bit ugly. It would be much cleaner if the DRM API would use separate
@@ -178,12 +185,12 @@ static inline void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *d
* a future revision of the interface...
*/
if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture
- && ((unsigned long) pt >= VMALLOC_START && (unsigned long) pt < VMALLOC_END))
- {
+ && ((unsigned long)pt >= VMALLOC_START
+ && (unsigned long)pt < VMALLOC_END)) {
unsigned long offset;
drm_map_t *map;
- offset = drm_follow_page(pt) | ((unsigned long) pt & ~PAGE_MASK);
+ offset = drm_follow_page(pt) | ((unsigned long)pt & ~PAGE_MASK);
map = drm_lookup_map(offset, size, dev);
if (map && map->type == _DRM_AGP) {
vunmap(pt);
@@ -193,5 +200,3 @@ static inline void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *d
iounmap(pt);
}
-
-
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