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, 192 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c
new file mode 100644
index 000000000000..fac2f9a45ea6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/umem.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "umem.h"
+#include "ummu.h"
+
+#include <core/client.h>
+#include <core/memory.h>
+#include <subdev/bar.h>
+
+#include <nvif/class.h>
+#include <nvif/if000a.h>
+#include <nvif/unpack.h>
+
+static const struct nvkm_object_func nvkm_umem;
+struct nvkm_memory *
+nvkm_umem_search(struct nvkm_client *client, u64 handle)
+{
+	struct nvkm_client *master = client->object.client;
+	struct nvkm_memory *memory = NULL;
+	struct nvkm_object *object;
+	struct nvkm_umem *umem;
+
+	object = nvkm_object_search(client, handle, &nvkm_umem);
+	if (IS_ERR(object)) {
+		if (client->super && client != master) {
+			spin_lock(&master->lock);
+			list_for_each_entry(umem, &master->umem, head) {
+				if (umem->object.object == handle) {
+					memory = nvkm_memory_ref(umem->memory);
+					break;
+				}
+			}
+			spin_unlock(&master->lock);
+		}
+	} else {
+		umem = nvkm_umem(object);
+		if (!umem->priv || client->super)
+			memory = nvkm_memory_ref(umem->memory);
+	}
+
+	return memory ? memory : ERR_PTR(-ENOENT);
+}
+
+static int
+nvkm_umem_unmap(struct nvkm_object *object)
+{
+	struct nvkm_umem *umem = nvkm_umem(object);
+
+	if (!umem->map)
+		return -EEXIST;
+
+	if (umem->io) {
+		if (!IS_ERR(umem->bar)) {
+			struct nvkm_device *device = umem->mmu->subdev.device;
+			nvkm_vmm_put(nvkm_bar_bar1_vmm(device), &umem->bar);
+		} else {
+			umem->bar = NULL;
+		}
+	} else {
+		vunmap(umem->map);
+		umem->map = NULL;
+	}
+
+	return 0;
+}
+
+static int
+nvkm_umem_map(struct nvkm_object *object, void *argv, u32 argc,
+	      enum nvkm_object_map *type, u64 *handle, u64 *length)
+{
+	struct nvkm_umem *umem = nvkm_umem(object);
+	struct nvkm_mmu *mmu = umem->mmu;
+
+	if (!umem->mappable)
+		return -EINVAL;
+	if (umem->map)
+		return -EEXIST;
+
+	if ((umem->type & NVKM_MEM_HOST) && !argc) {
+		int ret = nvkm_mem_map_host(umem->memory, &umem->map);
+		if (ret)
+			return ret;
+
+		*handle = (unsigned long)(void *)umem->map;
+		*length = nvkm_memory_size(umem->memory);
+		*type = NVKM_OBJECT_MAP_VA;
+		return 0;
+	} else
+	if ((umem->type & NVKM_MEM_VRAM) ||
+	    (umem->type & NVKM_MEM_KIND)) {
+		int ret = mmu->func->mem.umap(mmu, umem->memory, argv, argc,
+					      handle, length, &umem->bar);
+		if (ret)
+			return ret;
+
+		*type = NVKM_OBJECT_MAP_IO;
+	} else {
+		return -EINVAL;
+	}
+
+	umem->io = (*type == NVKM_OBJECT_MAP_IO);
+	return 0;
+}
+
+static void *
+nvkm_umem_dtor(struct nvkm_object *object)
+{
+	struct nvkm_umem *umem = nvkm_umem(object);
+	spin_lock(&umem->object.client->lock);
+	list_del_init(&umem->head);
+	spin_unlock(&umem->object.client->lock);
+	nvkm_memory_unref(&umem->memory);
+	return umem;
+}
+
+static const struct nvkm_object_func
+nvkm_umem = {
+	.dtor = nvkm_umem_dtor,
+	.map = nvkm_umem_map,
+	.unmap = nvkm_umem_unmap,
+};
+
+int
+nvkm_umem_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
+	      struct nvkm_object **pobject)
+{
+	struct nvkm_mmu *mmu = nvkm_ummu(oclass->parent)->mmu;
+	union {
+		struct nvif_mem_v0 v0;
+	} *args = argv;
+	struct nvkm_umem *umem;
+	int type, ret = -ENOSYS;
+	u8  page;
+	u64 size;
+
+	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) {
+		type = args->v0.type;
+		page = args->v0.page;
+		size = args->v0.size;
+	} else
+		return ret;
+
+	if (type >= mmu->type_nr)
+		return -EINVAL;
+
+	if (!(umem = kzalloc(sizeof(*umem), GFP_KERNEL)))
+		return -ENOMEM;
+	nvkm_object_ctor(&nvkm_umem, oclass, &umem->object);
+	umem->mmu = mmu;
+	umem->type = mmu->type[type].type;
+	umem->priv = oclass->client->super;
+	INIT_LIST_HEAD(&umem->head);
+	*pobject = &umem->object;
+
+	if (mmu->type[type].type & NVKM_MEM_MAPPABLE) {
+		page = max_t(u8, page, PAGE_SHIFT);
+		umem->mappable = true;
+	}
+
+	ret = nvkm_mem_new_type(mmu, type, page, size, argv, argc,
+				&umem->memory);
+	if (ret)
+		return ret;
+
+	spin_lock(&umem->object.client->lock);
+	list_add(&umem->head, &umem->object.client->umem);
+	spin_unlock(&umem->object.client->lock);
+
+	args->v0.page = nvkm_memory_page(umem->memory);
+	args->v0.addr = nvkm_memory_addr(umem->memory);
+	args->v0.size = nvkm_memory_size(umem->memory);
+	return 0;
+}