drm/i915: silence io mapping/unmapping sparse warnings on different address spaces

drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    expected void [noderef] <asn:2>*vaddr
drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    got void *
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    expected void *vaddr
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    got void [noderef] <asn:2>*

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1475574853-4178-2-git-send-email-jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 33c85227643dbc04cc377ea374146ecd6e3804b5..e88786ea12199f94e44b70c64ff387718cd4e23c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -429,7 +429,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
        }
 
        if (cache->vaddr) {
-               io_mapping_unmap_atomic(unmask_page(cache->vaddr));
+               io_mapping_unmap_atomic((void __force __iomem *) unmask_page(cache->vaddr));
        } else {
                struct i915_vma *vma;
                int ret;
@@ -474,7 +474,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
                offset += page << PAGE_SHIFT;
        }
 
-       vaddr = io_mapping_map_atomic_wc(&cache->i915->ggtt.mappable, offset);
+       vaddr = (void __force *) io_mapping_map_atomic_wc(&cache->i915->ggtt.mappable, offset);
        cache->page = page;
        cache->vaddr = (unsigned long)vaddr;