drm,io-mapping: Specify slot to use for atomic mappings
This is required should we ever attempt to use an io-mapping where
KM_USER0 is verboten, such as inside an IRQ context.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4efd4fd..2a4ed7c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -496,10 +496,10 @@
char *vaddr_atomic;
unsigned long unwritten;
- vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
+ vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
user_data, length);
- io_mapping_unmap_atomic(vaddr_atomic);
+ io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
if (unwritten)
return -EFAULT;
return 0;
@@ -3487,7 +3487,8 @@
reloc_offset = obj_priv->gtt_offset + reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
(reloc_offset &
- ~(PAGE_SIZE - 1)));
+ ~(PAGE_SIZE - 1)),
+ KM_USER0);
reloc_entry = (uint32_t __iomem *)(reloc_page +
(reloc_offset & (PAGE_SIZE - 1)));
reloc_val = target_obj_priv->gtt_offset + reloc->delta;
@@ -3498,7 +3499,7 @@
readl(reloc_entry), reloc_val);
#endif
writel(reloc_val, reloc_entry);
- io_mapping_unmap_atomic(reloc_page);
+ io_mapping_unmap_atomic(reloc_page, KM_USER0);
/* The updated presumed offset for this entry will be
* copied back out to the user.