msm: kgsl: Calculate size of the MMU map region from the scatterlist
The GPUMMU and IOMMU functions operate on a scatter-gather list of
pages but still use the memdesc->size to determine the overall size
of the region. Enforce a single authoratiative source for all the
mapping data and calculate the size from the sglist.
Change-Id: Ic0dedbad6ffae842b65c5a88e7d56f834501e9d3
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_gpummu.c b/drivers/gpu/msm/kgsl_gpummu.c
index ab47f40..8f61ab6 100644
--- a/drivers/gpu/msm/kgsl_gpummu.c
+++ b/drivers/gpu/msm/kgsl_gpummu.c
@@ -591,7 +591,7 @@
{
unsigned int numpages;
unsigned int pte, ptefirst, ptelast, superpte;
- unsigned int range = memdesc->size;
+ unsigned int range = kgsl_sg_size(memdesc->sg, memdesc->sglen);
struct kgsl_gpummu_pt *gpummu_pt = mmu_specific_pt;
/* All GPU addresses as assigned are page aligned, but some