mirror of https://gitee.com/openkylin/linux.git
drm: deline a few large inlines in DRM code
This patch moves a few large functions from drm_memory.h to drm_memory.c, with the following effect: text data bss dec hex filename 46305 1304 20 47629 ba0d new/drm.ko 46367 1304 20 47691 ba4b org/drm.ko 12969 1372 0 14341 3805 new/i810.ko 14712 1372 0 16084 3ed4 org/i810.ko 16447 1364 0 17811 4593 new/i830.ko 18198 1364 0 19562 4c6a org/i830.ko 11875 1324 0 13199 338f new/i915.ko 13025 1324 0 14349 380d org/i915.ko 23936 29288 0 53224 cfe8 new/mga.ko 27280 29288 0 56568 dcf8 org/mga.ko Please apply. Signed-off-by: Denis Vlasenko <vda@ilport.com.ua> Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie
parent
11bab7d2c8
commit
31f64bd101
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@ -80,6 +80,71 @@ void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
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}
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#if __OS_HAS_AGP
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/*
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* Find the drm_map that covers the range [offset, offset+size).
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*/
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drm_map_t *drm_lookup_map(unsigned long offset,
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unsigned long size, drm_device_t * dev)
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{
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struct list_head *list;
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drm_map_list_t *r_list;
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drm_map_t *map;
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list_for_each(list, &dev->maplist->head) {
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r_list = (drm_map_list_t *) list;
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map = r_list->map;
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if (!map)
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continue;
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if (map->offset <= offset
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&& (offset + size) <= (map->offset + map->size))
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return map;
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}
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return NULL;
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}
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void *agp_remap(unsigned long offset, unsigned long size,
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drm_device_t * dev)
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{
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unsigned long *phys_addr_map, i, num_pages =
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PAGE_ALIGN(size) / PAGE_SIZE;
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struct drm_agp_mem *agpmem;
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struct page **page_map;
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void *addr;
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size = PAGE_ALIGN(size);
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#ifdef __alpha__
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offset -= dev->hose->mem_space->start;
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#endif
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for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next)
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if (agpmem->bound <= offset
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&& (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
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(offset + size))
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break;
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if (!agpmem)
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return NULL;
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/*
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* OK, we're mapping AGP space on a chipset/platform on which memory accesses by
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* the CPU do not get remapped by the GART. We fix this by using the kernel's
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* page-table instead (that's probably faster anyhow...).
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*/
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/* note: use vmalloc() because num_pages could be large... */
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page_map = vmalloc(num_pages * sizeof(struct page *));
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if (!page_map)
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return NULL;
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phys_addr_map =
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agpmem->memory->memory + (offset - agpmem->bound) / PAGE_SIZE;
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for (i = 0; i < num_pages; ++i)
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page_map[i] = pfn_to_page(phys_addr_map[i] >> PAGE_SHIFT);
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addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
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vfree(page_map);
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return addr;
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}
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/** Wrapper around agp_allocate_memory() */
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DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type)
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{
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@ -104,4 +169,56 @@ int drm_unbind_agp(DRM_AGP_MEM * handle)
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return drm_agp_unbind_memory(handle);
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}
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#endif /* agp */
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void *drm_ioremap(unsigned long offset, unsigned long size,
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drm_device_t * dev)
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{
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
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drm_map_t *map = drm_lookup_map(offset, size, dev);
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if (map && map->type == _DRM_AGP)
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return agp_remap(offset, size, dev);
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}
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return ioremap(offset, size);
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}
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EXPORT_SYMBOL(drm_ioremap);
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void *drm_ioremap_nocache(unsigned long offset,
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unsigned long size, drm_device_t * dev)
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{
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
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drm_map_t *map = drm_lookup_map(offset, size, dev);
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if (map && map->type == _DRM_AGP)
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return agp_remap(offset, size, dev);
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}
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return ioremap_nocache(offset, size);
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}
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void drm_ioremapfree(void *pt, unsigned long size,
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drm_device_t * dev)
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{
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/*
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* This is a bit ugly. It would be much cleaner if the DRM API would use separate
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* routines for handling mappings in the AGP space. Hopefully this can be done in
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* a future revision of the interface...
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*/
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture
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&& ((unsigned long)pt >= VMALLOC_START
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&& (unsigned long)pt < VMALLOC_END)) {
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unsigned long offset;
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drm_map_t *map;
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offset = drm_follow_page(pt) | ((unsigned long)pt & ~PAGE_MASK);
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map = drm_lookup_map(offset, size, dev);
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if (map && map->type == _DRM_AGP) {
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vunmap(pt);
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return;
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}
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}
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iounmap(pt);
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}
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EXPORT_SYMBOL(drm_ioremapfree);
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#endif /* debug_memory */
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@ -60,67 +60,11 @@
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/*
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* Find the drm_map that covers the range [offset, offset+size).
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*/
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static inline drm_map_t *drm_lookup_map(unsigned long offset,
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unsigned long size, drm_device_t * dev)
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{
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struct list_head *list;
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drm_map_list_t *r_list;
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drm_map_t *map;
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drm_map_t *drm_lookup_map(unsigned long offset,
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unsigned long size, drm_device_t * dev);
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list_for_each(list, &dev->maplist->head) {
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r_list = (drm_map_list_t *) list;
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map = r_list->map;
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if (!map)
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continue;
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if (map->offset <= offset
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&& (offset + size) <= (map->offset + map->size))
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return map;
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}
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return NULL;
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}
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static inline void *agp_remap(unsigned long offset, unsigned long size,
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drm_device_t * dev)
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{
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unsigned long *phys_addr_map, i, num_pages =
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PAGE_ALIGN(size) / PAGE_SIZE;
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struct drm_agp_mem *agpmem;
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struct page **page_map;
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void *addr;
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size = PAGE_ALIGN(size);
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#ifdef __alpha__
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offset -= dev->hose->mem_space->start;
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#endif
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for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next)
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if (agpmem->bound <= offset
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&& (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >=
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(offset + size))
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break;
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if (!agpmem)
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return NULL;
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/*
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* OK, we're mapping AGP space on a chipset/platform on which memory accesses by
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* the CPU do not get remapped by the GART. We fix this by using the kernel's
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* page-table instead (that's probably faster anyhow...).
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*/
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/* note: use vmalloc() because num_pages could be large... */
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page_map = vmalloc(num_pages * sizeof(struct page *));
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if (!page_map)
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return NULL;
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phys_addr_map =
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agpmem->memory->memory + (offset - agpmem->bound) / PAGE_SIZE;
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for (i = 0; i < num_pages; ++i)
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page_map[i] = pfn_to_page(phys_addr_map[i] >> PAGE_SHIFT);
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addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP);
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vfree(page_map);
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return addr;
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}
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void *agp_remap(unsigned long offset, unsigned long size,
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drm_device_t * dev);
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static inline unsigned long drm_follow_page(void *vaddr)
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{
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@ -152,51 +96,11 @@ static inline unsigned long drm_follow_page(void *vaddr)
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#endif
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static inline void *drm_ioremap(unsigned long offset, unsigned long size,
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drm_device_t * dev)
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{
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
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drm_map_t *map = drm_lookup_map(offset, size, dev);
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void *drm_ioremap(unsigned long offset, unsigned long size,
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drm_device_t * dev);
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if (map && map->type == _DRM_AGP)
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return agp_remap(offset, size, dev);
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}
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return ioremap(offset, size);
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}
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void *drm_ioremap_nocache(unsigned long offset,
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unsigned long size, drm_device_t * dev);
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static inline void *drm_ioremap_nocache(unsigned long offset,
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unsigned long size, drm_device_t * dev)
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{
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture) {
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drm_map_t *map = drm_lookup_map(offset, size, dev);
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if (map && map->type == _DRM_AGP)
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return agp_remap(offset, size, dev);
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}
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return ioremap_nocache(offset, size);
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}
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static inline void drm_ioremapfree(void *pt, unsigned long size,
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drm_device_t * dev)
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{
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/*
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* This is a bit ugly. It would be much cleaner if the DRM API would use separate
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* routines for handling mappings in the AGP space. Hopefully this can be done in
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* a future revision of the interface...
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*/
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if (drm_core_has_AGP(dev) && dev->agp && dev->agp->cant_use_aperture
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&& ((unsigned long)pt >= VMALLOC_START
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&& (unsigned long)pt < VMALLOC_END)) {
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unsigned long offset;
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drm_map_t *map;
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offset = drm_follow_page(pt) | ((unsigned long)pt & ~PAGE_MASK);
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map = drm_lookup_map(offset, size, dev);
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if (map && map->type == _DRM_AGP) {
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vunmap(pt);
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return;
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}
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}
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iounmap(pt);
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}
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void drm_ioremapfree(void *pt, unsigned long size,
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drm_device_t * dev);
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