Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Core:
   - shared fencing staging removal
   - drop transactional atomic helpers and move helpers to new location
   - DP/MST atomic cleanup
   - Leasing cleanups and drop EXPORT_SYMBOL
   - Convert drivers to atomic helpers and generic fbdev.
   - removed deprecated obj_ref/unref in favour of get/put
   - Improve dumb callback documentation
   - MODESET_LOCK_BEGIN/END helpers

  panels:
   - CDTech panels, Banana Pi Panel, DLC1010GIG,
   - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
   - Himax HX8357D, simulated RTSM AEMv8.
   - GPD Win2 panel
   - AUO G101EVN010

  vgem:
   - render node support

  ttm:
   - move global init out of drivers
   - fix LRU handling for ghost objects
   - Support for simultaneous submissions to multiple engines

  scheduler:
   - timeout/fault handling changes to help GPU recovery
   - helpers for hw with preemption support

  i915:
   - Scaler/Watermark fixes
   - DP MST + powerwell fixes
   - PSR fixes
   - Break long get/put shmemfs pages
   - Icelake fixes
   - Icelake DSI video mode enablement
   - Engine workaround improvements

  amdgpu:
   - freesync support
   - GPU reset enabled on CI, VI, SOC15 dGPUs
   - ABM support in DC
   - KFD support for vega12/polaris12
   - SDMA paging queue on vega
   - More amdkfd code sharing
   - DCC scanout on GFX9
   - DC kerneldoc
   - Updated SMU firmware for GFX8 chips
   - XGMI PSP + hive reset support
   - GPU reset
   - DC trace support
   - Powerplay updates for newer Polaris
   - Cursor plane update fast path
   - kfd dma-buf support

  virtio-gpu:
   - add EDID support

  vmwgfx:
   - pageflip with damage support

  nouveau:
   - Initial Turing TU104/TU106 modesetting support

  msm:
   - a2xx gpu support for apq8060 and imx5
   - a2xx gpummu support
   - mdp4 display support for apq8060
   - DPU fixes and cleanups
   - enhanced profiling support
   - debug object naming interface
   - get_iova/page pinning decoupling

  tegra:
   - Tegra194 host1x, VIC and display support enabled
   - Audio over HDMI for Tegra186 and Tegra194

  exynos:
   - DMA/IOMMU refactoring
   - plane alpha + blend mode support
   - Color format fixes for mixer driver

  rcar-du:
   - R8A7744 and R8A77470 support
   - R8A77965 LVDS support

  imx:
   - fbdev emulation fix
   - multi-tiled scalling fixes
   - SPDX identifiers

  rockchip
   - dw_hdmi support
   - dw-mipi-dsi + dual dsi support
   - mailbox read size fix

  qxl:
   - fix cursor pinning

  vc4:
   - YUV support (scaling + cursor)

  v3d:
   - enable TFU (Texture Formatting Unit)

  mali-dp:
   - add support for linear tiled formats

  sun4i:
   - Display Engine 3 support
   - H6 DE3 mixer 0 support
   - H6 display engine support
   - dw-hdmi support
   - H6 HDMI phy support
   - implicit fence waiting
   - BGRX8888 support

  meson:
   - Overlay plane support
   - implicit fence waiting
   - HDMI 1.4 4k modes

  bridge:
   - i2c fixes for sii902x"

* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
  drm/amd/display: Add fast path for cursor plane updates
  drm/amdgpu: Enable GPU recovery by default for CI
  drm/amd/display: Fix duplicating scaling/underscan connector state
  drm/amd/display: Fix unintialized max_bpc state values
  Revert "drm/amd/display: Set RMX_ASPECT as default"
  drm/amdgpu: Fix stub function name
  drm/msm/dpu: Fix clock issue after bind failure
  drm/msm/dpu: Clean up dpu_media_info.h static inline functions
  drm/msm/dpu: Further cleanups for static inline functions
  drm/msm/dpu: Cleanup the debugfs functions
  drm/msm/dpu: Remove dpu_irq and unused functions
  drm/msm: Make irq_postinstall optional
  drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
  drm/msm/dpu: Remove unused functions
  drm/msm/dpu: Remove dpu_crtc_is_enabled()
  drm/msm/dpu: Remove dpu_crtc_get_mixer_height
  drm/msm/dpu: Remove dpu_dbg
  drm/msm: dpu: Remove crtc_lock
  drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
  drm/msm: dpu: Separate crtc assignment from vblank enable
  ...

1 files changed, 112 insertions, 33 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 7459def78d50..6b87fff014b3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -767,6 +767,20 @@ nvkm_vma_tail(struct nvkm_vma *vma, u64 tail)
 	return new;
 }
 
+static inline void
+nvkm_vmm_free_remove(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
+{
+	rb_erase(&vma->tree, &vmm->free);
+}
+
+static inline void
+nvkm_vmm_free_delete(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
+{
+	nvkm_vmm_free_remove(vmm, vma);
+	list_del(&vma->head);
+	kfree(vma);
+}
+
 static void
 nvkm_vmm_free_insert(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 {
@@ -795,7 +809,21 @@ nvkm_vmm_free_insert(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 	rb_insert_color(&vma->tree, &vmm->free);
 }
 
-void
+static inline void
+nvkm_vmm_node_remove(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
+{
+	rb_erase(&vma->tree, &vmm->root);
+}
+
+static inline void
+nvkm_vmm_node_delete(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
+{
+	nvkm_vmm_node_remove(vmm, vma);
+	list_del(&vma->head);
+	kfree(vma);
+}
+
+static void
 nvkm_vmm_node_insert(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 {
 	struct rb_node **ptr = &vmm->root.rb_node;
@@ -834,6 +862,78 @@ nvkm_vmm_node_search(struct nvkm_vmm *vmm, u64 addr)
 	return NULL;
 }
 
+#define node(root, dir) (((root)->head.dir == &vmm->list) ? NULL :             \
+	list_entry((root)->head.dir, struct nvkm_vma, head))
+
+static struct nvkm_vma *
+nvkm_vmm_node_merge(struct nvkm_vmm *vmm, struct nvkm_vma *prev,
+		    struct nvkm_vma *vma, struct nvkm_vma *next, u64 size)
+{
+	if (next) {
+		if (vma->size == size) {
+			vma->size += next->size;
+			nvkm_vmm_node_delete(vmm, next);
+			if (prev) {
+				prev->size += vma->size;
+				nvkm_vmm_node_delete(vmm, vma);
+				return prev;
+			}
+			return vma;
+		}
+		BUG_ON(prev);
+
+		nvkm_vmm_node_remove(vmm, next);
+		vma->size -= size;
+		next->addr -= size;
+		next->size += size;
+		nvkm_vmm_node_insert(vmm, next);
+		return next;
+	}
+
+	if (prev) {
+		if (vma->size != size) {
+			nvkm_vmm_node_remove(vmm, vma);
+			prev->size += size;
+			vma->addr += size;
+			vma->size -= size;
+			nvkm_vmm_node_insert(vmm, vma);
+		} else {
+			prev->size += vma->size;
+			nvkm_vmm_node_delete(vmm, vma);
+		}
+		return prev;
+	}
+
+	return vma;
+}
+
+struct nvkm_vma *
+nvkm_vmm_node_split(struct nvkm_vmm *vmm,
+		    struct nvkm_vma *vma, u64 addr, u64 size)
+{
+	struct nvkm_vma *prev = NULL;
+
+	if (vma->addr != addr) {
+		prev = vma;
+		if (!(vma = nvkm_vma_tail(vma, vma->size + vma->addr - addr)))
+			return NULL;
+		vma->part = true;
+		nvkm_vmm_node_insert(vmm, vma);
+	}
+
+	if (vma->size != size) {
+		struct nvkm_vma *tmp;
+		if (!(tmp = nvkm_vma_tail(vma, vma->size - size))) {
+			nvkm_vmm_node_merge(vmm, prev, vma, NULL, vma->size);
+			return NULL;
+		}
+		tmp->part = true;
+		nvkm_vmm_node_insert(vmm, tmp);
+	}
+
+	return vma;
+}
+
 static void
 nvkm_vmm_dtor(struct nvkm_vmm *vmm)
 {
@@ -954,37 +1054,20 @@ nvkm_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
 	return nvkm_vmm_ctor(func, mmu, hdr, addr, size, key, name, *pvmm);
 }
 
-#define node(root, dir) ((root)->head.dir == &vmm->list) ? NULL :              \
-	list_entry((root)->head.dir, struct nvkm_vma, head)
-
 void
 nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 {
-	struct nvkm_vma *next;
+	struct nvkm_vma *next = node(vma, next);
+	struct nvkm_vma *prev = NULL;
 
 	nvkm_memory_tags_put(vma->memory, vmm->mmu->subdev.device, &vma->tags);
 	nvkm_memory_unref(&vma->memory);
 
-	if (vma->part) {
-		struct nvkm_vma *prev = node(vma, prev);
-		if (!prev->memory) {
-			prev->size += vma->size;
-			rb_erase(&vma->tree, &vmm->root);
-			list_del(&vma->head);
-			kfree(vma);
-			vma = prev;
-		}
-	}
-
-	next = node(vma, next);
-	if (next && next->part) {
-		if (!next->memory) {
-			vma->size += next->size;
-			rb_erase(&next->tree, &vmm->root);
-			list_del(&next->head);
-			kfree(next);
-		}
-	}
+	if (!vma->part || ((prev = node(vma, prev)), prev->memory))
+		prev = NULL;
+	if (!next->part || next->memory)
+		next = NULL;
+	nvkm_vmm_node_merge(vmm, prev, vma, next, vma->size);
 }
 
 void
@@ -1163,18 +1246,14 @@ nvkm_vmm_put_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 	struct nvkm_vma *prev, *next;
 
 	if ((prev = node(vma, prev)) && !prev->used) {
-		rb_erase(&prev->tree, &vmm->free);
-		list_del(&prev->head);
 		vma->addr  = prev->addr;
 		vma->size += prev->size;
-		kfree(prev);
+		nvkm_vmm_free_delete(vmm, prev);
 	}
 
 	if ((next = node(vma, next)) && !next->used) {
-		rb_erase(&next->tree, &vmm->free);
-		list_del(&next->head);
 		vma->size += next->size;
-		kfree(next);
+		nvkm_vmm_free_delete(vmm, next);
 	}
 
 	nvkm_vmm_free_insert(vmm, vma);
@@ -1250,7 +1329,7 @@ nvkm_vmm_put_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
 	}
 
 	/* Remove VMA from the list of allocated nodes. */
-	rb_erase(&vma->tree, &vmm->root);
+	nvkm_vmm_node_remove(vmm, vma);
 
 	/* Merge VMA back into the free list. */
 	vma->page = NVKM_VMA_PAGE_NONE;
@@ -1357,7 +1436,7 @@ nvkm_vmm_get_locked(struct nvkm_vmm *vmm, bool getref, bool mapref, bool sparse,
 			tail = ALIGN_DOWN(tail, vmm->func->page_block);
 
 		if (addr <= tail && tail - addr >= size) {
-			rb_erase(&this->tree, &vmm->free);
+			nvkm_vmm_free_remove(vmm, this);
 			vma = this;
 			break;
 		}