Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Highlights:

   - drm:

     Generic display port aux features, primary plane support, drm
     master management fixes, logging cleanups, enforced locking checks
     (instead of docs), documentation improvements, minor number
     handling cleanup, pseudofs for shared inodes.

   - ttm:

     add ability to allocate from both ends

   - i915:

     broadwell features, power domain and runtime pm, per-process
     address space infrastructure (not enabled)

   - msm:

     power management, hdmi audio support

   - nouveau:

     ongoing GPU fault recovery, initial maxwell support, random fixes

   - exynos:

     refactored driver to clean up a lot of abstraction, DP support
     moved into drm, LVDS bridge support added, parallel panel support

   - gma500:

     SGX MMU support, SGX irq handling, asle irq work fixes

   - radeon:

     video engine bringup, ring handling fixes, use dp aux helpers

   - vmwgfx:

     add rendernode support"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (849 commits)
  DRM: armada: fix corruption while loading cursors
  drm/dp_helper: don't return EPROTO for defers (v2)
  drm/bridge: export ptn3460_init function
  drm/exynos: remove MODULE_DEVICE_TABLE definitions
  ARM: dts: exynos4412-trats2: enable exynos/fimd node
  ARM: dts: exynos4210-trats: enable exynos/fimd node
  ARM: dts: exynos4412-trats2: add panel node
  ARM: dts: exynos4210-trats: add panel node
  ARM: dts: exynos4: add MIPI DSI Master node
  drm/panel: add S6E8AA0 driver
  ARM: dts: exynos4210-universal_c210: add proper panel node
  drm/panel: add ld9040 driver
  panel/ld9040: add DT bindings
  panel/s6e8aa0: add DT bindings
  drm/exynos: add DSIM driver
  exynos/dsim: add DT bindings
  drm/exynos: disallow fbdev initialization if no device is connected
  drm/mipi_dsi: create dsi devices only for nodes with reg property
  drm/mipi_dsi: add flags to DSI messages
  Skip intel_crt_init for Dell XPS 8700
  ...

1 files changed, 14 insertions, 24 deletions

diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 6b51bf90df0e..05c97c5350a1 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -79,7 +79,6 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
 		unsigned int size)
 {
 	struct drm_gem_cma_object *cma_obj;
-	struct sg_table *sgt = NULL;
 	int ret;
 
 	size = round_up(size, PAGE_SIZE);
@@ -97,23 +96,9 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
 		goto error;
 	}
 
-	sgt = kzalloc(sizeof(*cma_obj->sgt), GFP_KERNEL);
-	if (sgt == NULL) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	ret = dma_get_sgtable(drm->dev, sgt, cma_obj->vaddr,
-			      cma_obj->paddr, size);
-	if (ret < 0)
-		goto error;
-
-	cma_obj->sgt = sgt;
-
 	return cma_obj;
 
 error:
-	kfree(sgt);
 	drm_gem_cma_free_object(&cma_obj->base);
 	return ERR_PTR(ret);
 }
@@ -175,10 +160,6 @@ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
 	if (cma_obj->vaddr) {
 		dma_free_writecombine(gem_obj->dev->dev, cma_obj->base.size,
 				      cma_obj->vaddr, cma_obj->paddr);
-		if (cma_obj->sgt) {
-			sg_free_table(cma_obj->sgt);
-			kfree(cma_obj->sgt);
-		}
 	} else if (gem_obj->import_attach) {
 		drm_prime_gem_destroy(gem_obj, cma_obj->sgt);
 	}
@@ -253,8 +234,17 @@ static int drm_gem_cma_mmap_obj(struct drm_gem_cma_object *cma_obj,
 {
 	int ret;
 
-	ret = remap_pfn_range(vma, vma->vm_start, cma_obj->paddr >> PAGE_SHIFT,
-			vma->vm_end - vma->vm_start, vma->vm_page_prot);
+	/*
+	 * Clear the VM_PFNMAP flag that was set by drm_gem_mmap(), and set the
+	 * vm_pgoff (used as a fake buffer offset by DRM) to 0 as we want to map
+	 * the whole buffer.
+	 */
+	vma->vm_flags &= ~VM_PFNMAP;
+	vma->vm_pgoff = 0;
+
+	ret = dma_mmap_writecombine(cma_obj->base.dev->dev, vma,
+				    cma_obj->vaddr, cma_obj->paddr,
+				    vma->vm_end - vma->vm_start);
 	if (ret)
 		drm_gem_vm_close(vma);
 
@@ -292,9 +282,9 @@ void drm_gem_cma_describe(struct drm_gem_cma_object *cma_obj, struct seq_file *m
 
 	off = drm_vma_node_start(&obj->vma_node);
 
-	seq_printf(m, "%2d (%2d) %08llx %08Zx %p %d",
+	seq_printf(m, "%2d (%2d) %08llx %pad %p %d",
 			obj->name, obj->refcount.refcount.counter,
-			off, cma_obj->paddr, cma_obj->vaddr, obj->size);
+			off, &cma_obj->paddr, cma_obj->vaddr, obj->size);
 
 	seq_printf(m, "\n");
 }
@@ -342,7 +332,7 @@ drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size,
 	cma_obj->paddr = sg_dma_address(sgt->sgl);
 	cma_obj->sgt = sgt;
 
-	DRM_DEBUG_PRIME("dma_addr = 0x%x, size = %zu\n", cma_obj->paddr, size);
+	DRM_DEBUG_PRIME("dma_addr = %pad, size = %zu\n", &cma_obj->paddr, size);
 
 	return &cma_obj->base;
 }