Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for v4.15.

  Core:
   - Atomic object lifetime fixes
   - Atomic iterator improvements
   - Sparse/smatch fixes
   - Legacy kms ioctls to be interruptible
   - EDID override improvements
   - fb/gem helper cleanups
   - Simple outreachy patches
   - Documentation improvements
   - Fix dma-buf rcu races
   - DRM mode object leasing for improving VR use cases.
   - vgaarb improvements for non-x86 platforms.

  New driver:
   - tve200: Faraday Technology TVE200 block.

     This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in
     the StorLink SL3516 (later Cortina Systems CS3516) as well as the
     Grain Media GM8180.

  New bridges:
   - SiI9234 support

  New panels:
   - S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba
     LT089AC19000, Innolux AT043TN24

  i915:
   - Remove Coffeelake from alpha support
   - Cannonlake workarounds
   - Infoframe refactoring for DisplayPort
   - VBT updates
   - DisplayPort vswing/emph/buffer translation refactoring
   - CCS fixes
   - Restore GPU clock boost on missed vblanks
   - Scatter list updates for userptr allocations
   - Gen9+ transition watermarks
   - Display IPC (Isochronous Priority Control)
   - Private PAT management
   - GVT: improved error handling and pci config sanitizing
   - Execlist refactoring
   - Transparent Huge Page support
   - User defined priorities support
   - HuC/GuC firmware refactoring
   - DP MST fixes
   - eDP power sequencing fixes
   - Use RCU instead of stop_machine
   - PSR state tracking support
   - Eviction fixes
   - BDW DP aux channel timeout fixes
   - LSPCON fixes
   - Cannonlake PLL fixes

  amdgpu:
   - Per VM BO support
   - Powerplay cleanups
   - CI powerplay support
   - PASID mgr for kfd
   - SR-IOV fixes
   - initial GPU reset for vega10
   - Prime mmap support
   - TTM updates
   - Clock query interface for Raven
   - Fence to handle ioctl
   - UVD encode ring support on Polaris
   - Transparent huge page DMA support
   - Compute LRU pipe tweaks
   - BO flag to allow buffers to opt out of implicit sync
   - CTX priority setting API
   - VRAM lost infrastructure plumbing

  qxl:
   - fix flicker since atomic rework

  amdkfd:
   - Further improvements from internal AMD tree
   - Usermode events
   - Drop radeon support

  nouveau:
   - Pascal temperature sensor support
   - Improved BAR2 handling
   - MMU rework to support Pascal MMU

  exynos:
   - Improved HDMI/mixer support
   - HDMI audio interface support

  tegra:
   - Prep work for tegra186
   - Cleanup/fixes

  msm:
   - Preemption support for a5xx
   - Display fixes for 8x96 (snapdragon 820)
   - Async cursor plane fixes
   - FW loading rework
   - GPU debugging improvements

  vc4:
   - Prep for DSI panels
   - fix T-format tiling scanout
   - New madvise ioctl

  Rockchip:
   - LVDS support

  omapdrm:
   - omap4 HDMI CEC support

  etnaviv:
   - GPU performance counters groundwork

  sun4i:
   - refactor driver load + TCON backend
   - HDMI improvements
   - A31 support
   - Misc fixes

  udl:
   - Probe/EDID read fixes.

  tilcdc:
   - Misc fixes.

  pl111:
   - Support more variants

  adv7511:
   - Improve EDID handling.
   - HDMI CEC support

  sii8620:
   - Add remote control support"

* tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits)
  drm/rockchip: analogix_dp: Use mutex rather than spinlock
  drm/mode_object: fix documentation for object lookups.
  drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU
  drm/i915: Move init_clock_gating() back to where it was
  drm/i915: Prune the reservation shared fence array
  drm/i915: Idle the GPU before shinking everything
  drm/i915: Lock llist_del_first() vs llist_del_all()
  drm/i915: Calculate ironlake intermediate watermarks correctly, v2.
  drm/i915: Disable lazy PPGTT page table optimization for vGPU
  drm/i915/execlists: Remove the priority "optimisation"
  drm/i915: Filter out spurious execlists context-switch interrupts
  drm/amdgpu: use irq-safe lock for kiq->ring_lock
  drm/amdgpu: bypass lru touch for KIQ ring submission
  drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories()
  drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs()
  drm/amd/powerplay: initialize a variable before using it
  drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels
  drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition
  drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug
  drm/rockchip: add CONFIG_OF dependency for lvds
  ...

1 files changed, 59 insertions, 28 deletions

diff --git a/drivers/gpu/drm/nouveau/nvif/object.c b/drivers/gpu/drm/nouveau/nvif/object.c
index c3fb6a20f567..40adfe9b334b 100644
--- a/drivers/gpu/drm/nouveau/nvif/object.c
+++ b/drivers/gpu/drm/nouveau/nvif/object.c
@@ -166,46 +166,77 @@ nvif_object_mthd(struct nvif_object *object, u32 mthd, void *data, u32 size)
 }
 
 void
-nvif_object_unmap(struct nvif_object *object)
+nvif_object_unmap_handle(struct nvif_object *object)
+{
+	struct {
+		struct nvif_ioctl_v0 ioctl;
+		struct nvif_ioctl_unmap unmap;
+	} args = {
+		.ioctl.type = NVIF_IOCTL_V0_UNMAP,
+	};
+
+	nvif_object_ioctl(object, &args, sizeof(args), NULL);
+}
+
+int
+nvif_object_map_handle(struct nvif_object *object, void *argv, u32 argc,
+		       u64 *handle, u64 *length)
 {
-	if (object->map.size) {
-		struct nvif_client *client = object->client;
-		struct {
-			struct nvif_ioctl_v0 ioctl;
-			struct nvif_ioctl_unmap unmap;
-		} args = {
-			.ioctl.type = NVIF_IOCTL_V0_UNMAP,
-		};
+	struct {
+		struct nvif_ioctl_v0 ioctl;
+		struct nvif_ioctl_map_v0 map;
+	} *args;
+	u32 argn = sizeof(*args) + argc;
+	int ret, maptype;
+
+	if (!(args = kzalloc(argn, GFP_KERNEL)))
+		return -ENOMEM;
+	args->ioctl.type = NVIF_IOCTL_V0_MAP;
+	memcpy(args->map.data, argv, argc);
 
-		if (object->map.ptr) {
+	ret = nvif_object_ioctl(object, args, argn, NULL);
+	*handle = args->map.handle;
+	*length = args->map.length;
+	maptype = args->map.type;
+	kfree(args);
+	return ret ? ret : (maptype == NVIF_IOCTL_MAP_V0_IO);
+}
+
+void
+nvif_object_unmap(struct nvif_object *object)
+{
+	struct nvif_client *client = object->client;
+	if (object->map.ptr) {
+		if (object->map.size) {
 			client->driver->unmap(client, object->map.ptr,
 						      object->map.size);
-			object->map.ptr = NULL;
+			object->map.size = 0;
 		}
-
-		nvif_object_ioctl(object, &args, sizeof(args), NULL);
-		object->map.size = 0;
+		object->map.ptr = NULL;
+		nvif_object_unmap_handle(object);
 	}
 }
 
 int
-nvif_object_map(struct nvif_object *object)
+nvif_object_map(struct nvif_object *object, void *argv, u32 argc)
 {
 	struct nvif_client *client = object->client;
-	struct {
-		struct nvif_ioctl_v0 ioctl;
-		struct nvif_ioctl_map_v0 map;
-	} args = {
-		.ioctl.type = NVIF_IOCTL_V0_MAP,
-	};
-	int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL);
-	if (ret == 0) {
-		object->map.size = args.map.length;
-		object->map.ptr = client->driver->map(client, args.map.handle,
-						      object->map.size);
-		if (ret = -ENOMEM, object->map.ptr)
+	u64 handle, length;
+	int ret = nvif_object_map_handle(object, argv, argc, &handle, &length);
+	if (ret >= 0) {
+		if (ret) {
+			object->map.ptr = client->driver->map(client,
+							      handle,
+							      length);
+			if (ret = -ENOMEM, object->map.ptr) {
+				object->map.size = length;
+				return 0;
+			}
+		} else {
+			object->map.ptr = (void *)(unsigned long)handle;
 			return 0;
-		nvif_object_unmap(object);
+		}
+		nvif_object_unmap_handle(object);
 	}
 	return ret;
 }