Merge tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Cannonlake and Vega12 support are probably the two major things. This
  pull lacks nouveau, Ben had some unforseen leave and a few other
  blockers so we'll see how things look or maybe leave it for this merge
  window.

  core:
   - Device links to handle sound/gpu pm dependency
   - Color encoding/range properties
   - Plane clipping into plane check helper
   - Backlight helpers
   - DP TP4 + HBR3 helper support

  amdgpu:
   - Vega12 support
   - Enable DC by default on all supported GPUs
   - Powerplay restructuring and cleanup
   - DC bandwidth calc updates
   - DC backlight on pre-DCE11
   - TTM backing store dropping support
   - SR-IOV fixes
   - Adding "wattman" like functionality
   - DC crc support
   - Improved DC dual-link handling

  amdkfd:
   - GPUVM support for dGPU
   - KFD events for dGPU
   - Enable PCIe atomics for dGPUs
   - HSA process eviction support
   - Live-lock fixes for process eviction
   - VM page table allocation fix for large-bar systems

  panel:
   - Raydium RM68200
   - AUO G104SN02 V2
   - KEO TX31D200VM0BAA
   - ARM Versatile panels

  i915:
   - Cannonlake support enabled
   - AUX-F port support added
   - Icelake base enabling until internal milestone of forcewake support
   - Query uAPI interface (used for GPU topology information currently)
   - Compressed framebuffer support for sprites
   - kmem cache shrinking when GPU is idle
   - Avoid boosting GPU when waited item is being processed already
   - Avoid retraining LSPCON link unnecessarily
   - Decrease request signaling latency
   - Deprecation of I915_SET_COLORKEY_NONE
   - Kerneldoc and compiler warning cleanup for upcoming CI enforcements
   - Full range ycbcr toggling
   - HDCP support

  i915/gvt:
   - Big refactor for shadow ppgtt
   - KBL context save/restore via LRI cmd (Weinan)
   - Properly unmap dma for guest page (Changbin)

  vmwgfx:
   - Lots of various improvements

  etnaviv:
   - Use the drm gpu scheduler
   - prep work for GC7000L support

  vc4:
   - fix alpha blending
   - Expose perf counters to userspace

  pl111:
   - Bandwidth checking/limiting
   - Versatile panel support

  sun4i:
   - A83T HDMI support
   - A80 support
   - YUV plane support
   - H3/H5 HDMI support

  omapdrm:
   - HPD support for DVI connector
   - remove lots of static variables

  msm:
   - DSI updates from 10nm / SDM845
   - fix for race condition with a3xx/a4xx fence completion irq
   - some refactoring/prep work for eventual a6xx support (ie. when we
     have a userspace)
   - a5xx debugfs enhancements
   - some mdp5 fixes/cleanups to prepare for eventually merging
     writeback
   - support (ie. when we have a userspace)

  tegra:
   - mmap() fixes for fbdev devices
   - Overlay plane for hw cursor fix
   - dma-buf cache maintenance support

  mali-dp:
   - YUV->RGB conversion support

  rockchip:
   - rk3399/chromebook fixes and improvements

  rcar-du:
   - LVDS support move to drm bridge
   - DT bindings for R8A77995
   - Driver/DT support for R8A77970

  tilcdc:
   - DRM panel support"

* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
  drm/i915: Fix hibernation with ACPI S0 target state
  drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
  drm/i915: Specify which engines to reset following semaphore/event lockups
  drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
  drm/amdkfd: Use ordered workqueue to restore processes
  drm/amdgpu: Fix acquiring VM on large-BAR systems
  drm/amd/pp: clean header file hwmgr.h
  drm/amd/pp: use mlck_table.count for array loop index limit
  drm: Fix uabi regression by allowing garbage mode->type from userspace
  drm/amdgpu: Add an ATPX quirk for hybrid laptop
  drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
  drm/amd/pp: Add new asic support in pp_psm.c
  drm/amd/pp: Clean up powerplay code on Vega12
  drm/amd/pp: Add smu irq handlers for legacy asics
  drm/amd/pp: Fix set wrong temperature range on smu7
  drm/amdgpu: Don't change preferred domian when fallback GTT v5
  drm/vmwgfx: Bump version patchlevel and date
  drm/vmwgfx: use monotonic event timestamps
  drm/vmwgfx: Unpin the screen object backup buffer when not used
  drm/vmwgfx: Stricter count of legacy surface device resources
  ...

1 files changed, 17 insertions, 18 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 60fcef1593dd..8eba95b3c737 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -118,7 +118,6 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 	int ret;
 	int i;
 	unsigned long address = vmf->address;
-	int retval = VM_FAULT_NOPAGE;
 	struct ttm_mem_type_manager *man =
 		&bdev->man[bo->mem.mem_type];
 	struct vm_area_struct cvma;
@@ -158,7 +157,7 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 	 * (if at all) by redirecting mmap to the exporter.
 	 */
 	if (bo->ttm && (bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) {
-		retval = VM_FAULT_SIGBUS;
+		ret = VM_FAULT_SIGBUS;
 		goto out_unlock;
 	}
 
@@ -169,10 +168,10 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 			break;
 		case -EBUSY:
 		case -ERESTARTSYS:
-			retval = VM_FAULT_NOPAGE;
+			ret = VM_FAULT_NOPAGE;
 			goto out_unlock;
 		default:
-			retval = VM_FAULT_SIGBUS;
+			ret = VM_FAULT_SIGBUS;
 			goto out_unlock;
 		}
 	}
@@ -183,12 +182,10 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 	 */
 	ret = ttm_bo_vm_fault_idle(bo, vmf);
 	if (unlikely(ret != 0)) {
-		retval = ret;
-
-		if (retval == VM_FAULT_RETRY &&
+		if (ret == VM_FAULT_RETRY &&
 		    !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
 			/* The BO has already been unreserved. */
-			return retval;
+			return ret;
 		}
 
 		goto out_unlock;
@@ -196,12 +193,12 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 
 	ret = ttm_mem_io_lock(man, true);
 	if (unlikely(ret != 0)) {
-		retval = VM_FAULT_NOPAGE;
+		ret = VM_FAULT_NOPAGE;
 		goto out_unlock;
 	}
 	ret = ttm_mem_io_reserve_vm(bo);
 	if (unlikely(ret != 0)) {
-		retval = VM_FAULT_SIGBUS;
+		ret = VM_FAULT_SIGBUS;
 		goto out_io_unlock;
 	}
 
@@ -211,7 +208,7 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 		drm_vma_node_start(&bo->vma_node);
 
 	if (unlikely(page_offset >= bo->num_pages)) {
-		retval = VM_FAULT_SIGBUS;
+		ret = VM_FAULT_SIGBUS;
 		goto out_io_unlock;
 	}
 
@@ -229,7 +226,9 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 	} else {
 		struct ttm_operation_ctx ctx = {
 			.interruptible = false,
-			.no_wait_gpu = false
+			.no_wait_gpu = false,
+			.flags = TTM_OPT_FLAG_FORCE_ALLOC
+
 		};
 
 		ttm = bo->ttm;
@@ -237,8 +236,8 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 						cvma.vm_page_prot);
 
 		/* Allocate all page at once, most common usage */
-		if (ttm->bdev->driver->ttm_tt_populate(ttm, &ctx)) {
-			retval = VM_FAULT_OOM;
+		if (ttm_tt_populate(ttm, &ctx)) {
+			ret = VM_FAULT_OOM;
 			goto out_io_unlock;
 		}
 	}
@@ -255,12 +254,11 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 		} else {
 			page = ttm->pages[page_offset];
 			if (unlikely(!page && i == 0)) {
-				retval = VM_FAULT_OOM;
+				ret = VM_FAULT_OOM;
 				goto out_io_unlock;
 			} else if (unlikely(!page)) {
 				break;
 			}
-			page->mapping = vma->vm_file->f_mapping;
 			page->index = drm_vma_node_start(&bo->vma_node) +
 				page_offset;
 			pfn = page_to_pfn(page);
@@ -280,7 +278,7 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 		if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0)))
 			break;
 		else if (unlikely(ret != 0)) {
-			retval =
+			ret =
 			    (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS;
 			goto out_io_unlock;
 		}
@@ -289,11 +287,12 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
 		if (unlikely(++page_offset >= page_last))
 			break;
 	}
+	ret = VM_FAULT_NOPAGE;
 out_io_unlock:
 	ttm_mem_io_unlock(man);
 out_unlock:
 	ttm_bo_unreserve(bo);
-	return retval;
+	return ret;
 }
 
 static void ttm_bo_vm_open(struct vm_area_struct *vma)