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drm: Fix broken use of _PAGE_NO_CACHE on powerpc

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That constant isn't meant to be used outside of arch mm code

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1467018023.20278.65.camel@kernel.crashing.org
This commit is contained in:
Benjamin Herrenschmidt 2016-06-27 19:00:23 +10:00 committed by Daniel Vetter
parent 6308c983d7
commit 37035e7411
3 changed files with 4 additions and 4 deletions
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2
drivers/gpu/drm/drm_memory.c
View File

@ -44,7 +44,7 @@
# include <asm/agp.h>
#else
# ifdef __powerpc__
# define PAGE_AGP __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
# define PAGE_AGP pgprot_noncached_wc(PAGE_KERNEL)
# else
# define PAGE_AGP PAGE_KERNEL
# endif

2
drivers/gpu/drm/drm_scatter.c
View File

@ -41,7 +41,7 @@
static inline void *drm_vmalloc_dma(unsigned long size)
{
#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL | _PAGE_NO_CACHE);
return __vmalloc(size, GFP_KERNEL, pgprot_noncached_wc(PAGE_KERNEL));
#else
return vmalloc_32(size);
#endif

4
drivers/gpu/drm/drm_vm.c
View File

@ -80,7 +80,7 @@ static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
pgprot_t tmp = vm_get_page_prot(vma->vm_flags);
#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE)
tmp |= _PAGE_NO_CACHE;
tmp = pgprot_noncached_wc(tmp);
#endif
return tmp;
}
@ -593,7 +593,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
* pages and mappings in fault()
*/
#if defined(__powerpc__)
pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
#endif
vma->vm_ops = &drm_vm_ops;
break;