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mm, dax, gpu: convert vm_insert_mixed to pfn_t

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Convert the raw unsigned long 'pfn' argument to pfn_t for the purpose of
evaluating the PFN_MAP and PFN_DEV flags.  When both are set it triggers
_PAGE_DEVMAP to be set in the resulting pte.

There are no functional changes to the gpu drivers as a result of this
conversion.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams
2016-01-15 16:56:40 -08:00
committed by Linus Torvalds
parent 69660fd797
commit 01c8f1c44b
10 changed files with 61 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/omapdrm/omap_gem.c
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@@ -19,6 +19,7 @@
#include <linux/shmem_fs.h>
#include <linux/spinlock.h>
#include <linux/pfn_t.h>
#include <drm/drm_vma_manager.h>
@@ -385,7 +386,8 @@ static int fault_1d(struct drm_gem_object *obj,
VERB("Inserting %p pfn %lx, pa %lx", vmf->virtual_address,
pfn, pfn << PAGE_SHIFT);
return vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn);
return vm_insert_mixed(vma, (unsigned long)vmf->virtual_address,
__pfn_to_pfn_t(pfn, PFN_DEV));
}
/* Special handling for the case of faulting in 2d tiled buffers */
@@ -478,7 +480,8 @@ static int fault_2d(struct drm_gem_object *obj,
pfn, pfn << PAGE_SHIFT);
for (i = n; i > 0; i--) {
vm_insert_mixed(vma, (unsigned long)vaddr, pfn);
vm_insert_mixed(vma, (unsigned long)vaddr,
__pfn_to_pfn_t(pfn, PFN_DEV));
pfn += usergart[fmt].stride_pfn;
vaddr += PAGE_SIZE * m;
}