drm/radeon: use vzalloc for gart pages

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@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index e9e8953e74a8f8ba85e03a9ecb01f6f0aad49c52..4debd60e5aa63390f0f386ee236bfc42fe4f8cf3 100644 (file)
--- 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;