Even though we should not try to use 4+GiB GTTs on 32-bit systems, by
using a local variable we can future proof the code whilst making it
easier to read.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 9daffd4..66b5a9f 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -305,7 +305,7 @@ relocate_entry_gtt(struct drm_i915_gem_object *obj,
struct drm_device *dev = obj->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
uint64_t delta = reloc->delta + target_offset;
- uint32_t __iomem *reloc_entry;
+ uint64_t offset;
void __iomem *reloc_page;
int ret;
@@ -318,25 +318,22 @@ relocate_entry_gtt(struct drm_i915_gem_object *obj,
return ret;
/* Map the page containing the relocation we're going to perform. */
- reloc->offset += i915_gem_obj_ggtt_offset(obj);
+ offset = i915_gem_obj_ggtt_offset(obj);
+ offset += reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->gtt.mappable,
- reloc->offset & PAGE_MASK);
- reloc_entry = (uint32_t __iomem *)
- (reloc_page + offset_in_page(reloc->offset));
- iowrite32(lower_32_bits(delta), reloc_entry);
+ offset & PAGE_MASK);
+ iowrite32(lower_32_bits(delta), reloc_page + offset_in_page(offset));
if (INTEL_INFO(dev)->gen >= 8) {
- reloc_entry += 1;
+ offset += sizeof(uint32_t);
- if (offset_in_page(reloc->offset + sizeof(uint32_t)) == 0) {
+ if (offset_in_page(offset) == 0) {
io_mapping_unmap_atomic(reloc_page);
- reloc_page = io_mapping_map_atomic_wc(
- dev_priv->gtt.mappable,
- reloc->offset + sizeof(uint32_t));
- reloc_entry = reloc_page;
+ reloc_page = io_mapping_map_atomic_wc(dev_priv->gtt.mappable,
+ offset);
}
- iowrite32(upper_32_bits(delta), reloc_entry);
+ iowrite32(upper_32_bits(delta), reloc_page + offset_in_page(offset));
}
io_mapping_unmap_atomic(reloc_page);
--
1.7.9.5
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