diff options
Diffstat (limited to 'drivers/char/drm/drm_memory.h')
| -rw-r--r-- | drivers/char/drm/drm_memory.h | 73 |
1 files changed, 39 insertions, 34 deletions
diff --git a/drivers/char/drm/drm_memory.h b/drivers/char/drm/drm_memory.h index 422b9426870..3732a61c376 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); } - - |