[PATCH 2/4] drm/radeon: use vzalloc for gart pages

[Christian König]

When allocating more than 2GB of GART the array of pages
gets to big for kzalloc, use vzalloc instead.

Signed-off-by: Christian König <deathsimple at vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
---
 drivers/gpu/drm/radeon/radeon_gart.c |   11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index 9a64f8c..631973d 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -355,14 +355,13 @@ int radeon_gart_init(struct radeon_device *rdev)
 	DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n",
 		 rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages);
 	/* Allocate pages table */
-	rdev->gart.pages = kzalloc(sizeof(void *) * rdev->gart.num_cpu_pages,
-				   GFP_KERNEL);
+	rdev->gart.pages = vzalloc(sizeof(void *) * rdev->gart.num_cpu_pages);
 	if (rdev->gart.pages == NULL) {
 		radeon_gart_fini(rdev);
 		return -ENOMEM;
 	}
-	rdev->gart.pages_addr = kzalloc(sizeof(dma_addr_t) *
-					rdev->gart.num_cpu_pages, GFP_KERNEL);
+	rdev->gart.pages_addr = vzalloc(sizeof(dma_addr_t) *
+					rdev->gart.num_cpu_pages);
 	if (rdev->gart.pages_addr == NULL) {
 		radeon_gart_fini(rdev);
 		return -ENOMEM;
@@ -388,8 +387,8 @@ void radeon_gart_fini(struct radeon_device *rdev)
 		radeon_gart_unbind(rdev, 0, rdev->gart.num_cpu_pages);
 	}
 	rdev->gart.ready = false;
-	kfree(rdev->gart.pages);
-	kfree(rdev->gart.pages_addr);
+	vfree(rdev->gart.pages);
+	vfree(rdev->gart.pages_addr);
 	rdev->gart.pages = NULL;
 	rdev->gart.pages_addr = NULL;
 
-- 
1.7.9.5