This is a single straightforward conversion from kmap to sg_map.
We also create the i915_gem_object_unmap function to common up the unmap code.
Signed-off-by: Logan Gunthorpe logang@deltatee.com Acked-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/i915/i915_gem.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 07e9b27..2c33000 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2202,6 +2202,15 @@ static void __i915_gem_object_reset_page_iter(struct drm_i915_gem_object *obj) radix_tree_delete(&obj->mm.get_page.radix, iter.index); }
+static void i915_gem_object_unmap(const struct drm_i915_gem_object *obj, + void *ptr) +{ + if (is_vmalloc_addr(ptr)) + vunmap(ptr); + else + sg_unmap(obj->mm.pages->sgl, ptr, 0, SG_KMAP); +} + void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj, enum i915_mm_subclass subclass) { @@ -2229,10 +2238,7 @@ void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj, void *ptr;
ptr = ptr_mask_bits(obj->mm.mapping); - if (is_vmalloc_addr(ptr)) - vunmap(ptr); - else - kunmap(kmap_to_page(ptr)); + i915_gem_object_unmap(obj, ptr);
obj->mm.mapping = NULL; } @@ -2499,8 +2505,11 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj, void *addr;
/* A single page can always be kmapped */ - if (n_pages == 1 && type == I915_MAP_WB) - return kmap(sg_page(sgt->sgl)); + if (n_pages == 1 && type == I915_MAP_WB) { + addr = sg_map(sgt->sgl, 0, SG_KMAP); + if (IS_ERR(addr)) + return NULL; + }
if (n_pages > ARRAY_SIZE(stack_pages)) { /* Too big for stack -- allocate temporary array instead */ @@ -2567,11 +2576,7 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj, goto err_unpin; }
- if (is_vmalloc_addr(ptr)) - vunmap(ptr); - else - kunmap(kmap_to_page(ptr)); - + i915_gem_object_unmap(obj, ptr); ptr = obj->mm.mapping = NULL; }