Commit 4f0c7cfb authored by Ben Widawsky's avatar Ben Widawsky Committed by Daniel Vetter
Browse files

drm/i915: [sparse] __iomem fixes for gem

As with one of the earlier patches in the series, we're forced to cast
for copy_[to|from]_user. Again because of the nature of the GEN x86
exclusivity, this should be safe.

Signed-off-by: default avatarBen Widawsky <>
[danvet: Added some bikeshed.]
Signed-off-by: default avatarDaniel Vetter <>
parent 0d38f009
......@@ -282,8 +282,8 @@ __copy_to_user_swizzled(char __user *cpu_vaddr,
static inline int
__copy_from_user_swizzled(char __user *gpu_vaddr, int gpu_offset,
const char *cpu_vaddr,
__copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset,
const char __user *cpu_vaddr,
int length)
int ret, cpu_offset = 0;
......@@ -558,11 +558,14 @@ fast_user_write(struct io_mapping *mapping,
char __user *user_data,
int length)
char *vaddr_atomic;
void __iomem *vaddr_atomic;
void *vaddr;
unsigned long unwritten;
vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
/* We can use the cpu mem copy function because this is X86. */
vaddr = (void __force*)vaddr_atomic + page_offset;
unwritten = __copy_from_user_inatomic_nocache(vaddr,
user_data, length);
return unwritten;
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