Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Intel have enabled DG2 on certain SKUs for laptops, AMD has started
  some new GPU support, msm has user allocated VA controls

  dma-buf:
   - add dma_resv_replace_fences
   - add dma_resv_get_singleton
   - make dma_excl_fence private

  core:
   - EDID parser refactorings
   - switch drivers to drm_mode_copy/duplicate
   - DRM managed mutex initialization

  display-helper:
   - put HDMI, SCDC, HDCP, DSC and DP into new module

  gem:
   - rework fence handling

  ttm:
   - rework bulk move handling
   - add common debugfs for resource managers
   - convert to kvcalloc

  format helpers:
   - support monochrome formats
   - RGB888, RGB565 to XRGB8888 conversions

  fbdev:
   - cfb/sys_imageblit fixes
   - pagelist corruption fix
   - create offb platform device
   - deferred io improvements

  sysfb:
   - Kconfig rework
   - support for VESA mode selection

  bridge:
   - conversions to devm_drm_of_get_bridge
   - conversions to panel_bridge
   - analogix_dp - autosuspend support
   - it66121 - audio support
   - tc358767 - DSI to DPI support
   - icn6211 - PLL/I2C fixes, DT property
   - adv7611 - enable DRM_BRIDGE_OP_HPD
   - anx7625 - fill ELD if no monitor
   - dw_hdmi - add audio support
   - lontium LT9211 support, i.MXMP LDB
   - it6505: Kconfig fix, DPCD set power fix
   - adv7511 - CEC support for ADV7535

  panel:
   - ltk035c5444t, B133UAN01, NV3052C panel support
   - DataImage FG040346DSSWBG04 support
   - st7735r - DT bindings fix
   - ssd130x - fixes

  i915:
   - DG2 laptop PCI-IDs ("motherboard down")
   - Initial RPL-P PCI IDs
   - compute engine ABI
   - DG2 Tile4 support
   - DG2 CCS clear color compression support
   - DG2 render/media compression formats support
   - ATS-M platform info
   - RPL-S PCI IDs added
   - Bump ADL-P DMC version to v2.16
   - Support static DRRS
   - Support multiple eDP/LVDS native mode refresh rates
   - DP HDR support for HSW+
   - Lots of display refactoring + fixes
   - GuC hwconfig support and query
   - sysfs support for multi-tile
   - fdinfo per-client gpu utilisation
   - add geometry subslices query
   - fix prime mmap with LMEM
   - fix vm open count and remove vma refcounts
   - contiguous allocation fixes
   - steered register write support
   - small PCI BAR enablement
   - GuC error capture support
   - sunset igpu legacy mmap support for newer devices
   - GuC version 70.1.1 support

  amdgpu:
   - Initial SoC21 support
   - SMU 13.x enablement
   - SMU 13.0.4 support
   - ttm_eu cleanups
   - USB-C, GPUVM updates
   - TMZ fixes for RV
   - RAS support for VCN
   - PM sysfs code cleanup
   - DC FP rework
   - extend CG/PG flags to 64-bit
   - SI dpm lockdep fix
   - runtime PM fixes

  amdkfd:
   - RAS/SVM fixes
   - TLB flush fixes
   - CRIU GWS support
   - ignore bogus MEC signals more efficiently

  msm:
   - Fourcc modifier for tiled but not compressed layouts
   - Support for userspace allocated IOVA (GPU virtual address)
   - DPU: DSC (Display Stream Compression) support
   - DP: eDP support
   - DP: conversion to use drm_bridge and drm_bridge_connector
   - Merge DPU1 and MDP5 MDSS driver
   - DPU: writeback support

  nouveau:
   - make some structures static
   - make some variables static
   - switch to drm_gem_plane_helper_prepare_fb

  radeon:
   - misc fixes/cleanups

  mxsfb:
   - rework crtc mode setting
   - LCDIF CRC support

  etnaviv:
   - fencing improvements
   - fix address space collisions
   - cleanup MMU reference handling

  gma500:
   - GEM/GTT improvements
   - connector handling fixes

  komeda:
   - switch to plane reset helper

  mediatek:
   - MIPI DSI improvements

  omapdrm:
   - GEM improvements

  qxl:
   - aarch64 support

  vc4:
   - add a CL submission tracepoint
   - HDMI YUV support
   - HDMI/clock improvements
   - drop is_hdmi caching

  virtio:
   - remove restriction of non-zero blob types

  vmwgfx:
   - support for cursormob and cursorbypass 4
   - fence improvements

  tidss:
   - reset DISPC on startup

  solomon:
   - SPI support
   - DT improvements

  sun4i:
   - allwinner D1 support
   - drop is_hdmi caching

  imx:
   - use swap() instead of open-coding
   - use devm_platform_ioremap_resource
   - remove redunant initializations

  ast:
   - Displayport support

  rockchip:
   - Refactor IOMMU initialisation
   - make some structures static
   - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi
   - support swapped YUV formats,
   - clock improvements
   - rk3568 support
   - VOP2 support

  mediatek:
   - MT8186 support

  tegra:
   - debugabillity improvements"

* tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits)
  drm/i915/dsi: fix VBT send packet port selection for ICL+
  drm/i915/uc: Fix undefined behavior due to shift overflowing the constant
  drm/i915/reg: fix undefined behavior due to shift overflowing the constant
  drm/i915/gt: Fix use of static in macro mismatch
  drm/i915/audio: fix audio code enable/disable pipe logging
  drm/i915: Fix CFI violation with show_dynamic_id()
  drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c
  drm/i915/gt: Fix build error without CONFIG_PM
  drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
  drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations
  drm/msm: don't free the IRQ if it was not requested
  drm/msm/dpu: limit writeback modes according to max_linewidth
  drm/amd: Don't reset dGPUs if the system is going to s2idle
  drm/amdgpu: Unmap legacy queue when MES is enabled
  drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
  drm/msm: Fix fb plane offset calculation
  drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
  drm/msm/dsi: don't powerup at modeset time for parade-ps8640
  drm/rockchip: Change register space names in vop2
  dt-bindings: display: rockchip: make reg-names mandatory for VOP2
  ...

1 files changed, 52 insertions, 16 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index a5f5b2dda332..b67831833c9a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -13,10 +13,22 @@
 #include "gem/i915_gem_internal.h"
 #include "gem/i915_gem_lmem.h"
 #include "i915_trace.h"
+#include "i915_utils.h"
 #include "intel_gt.h"
 #include "intel_gt_regs.h"
 #include "intel_gtt.h"
 
+
+static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
+{
+	return IS_BROXTON(i915) && i915_vtd_active(i915);
+}
+
+bool intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
+{
+	return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
+}
+
 struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz)
 {
 	struct drm_i915_gem_object *obj;
@@ -97,32 +109,52 @@ int map_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object
 	return 0;
 }
 
-void __i915_vm_close(struct i915_address_space *vm)
+static void clear_vm_list(struct list_head *list)
 {
 	struct i915_vma *vma, *vn;
 
-	if (!atomic_dec_and_mutex_lock(&vm->open, &vm->mutex))
-		return;
-
-	list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link) {
+	list_for_each_entry_safe(vma, vn, list, vm_link) {
 		struct drm_i915_gem_object *obj = vma->obj;
 
-		if (!kref_get_unless_zero(&obj->base.refcount)) {
+		if (!i915_gem_object_get_rcu(obj)) {
 			/*
-			 * Unbind the dying vma to ensure the bound_list
+			 * Object is dying, but has not yet cleared its
+			 * vma list.
+			 * Unbind the dying vma to ensure our list
 			 * is completely drained. We leave the destruction to
-			 * the object destructor.
+			 * the object destructor to avoid the vma
+			 * disappearing under it.
 			 */
 			atomic_and(~I915_VMA_PIN_MASK, &vma->flags);
 			WARN_ON(__i915_vma_unbind(vma));
-			continue;
+
+			/* Remove from the unbound list */
+			list_del_init(&vma->vm_link);
+
+			/*
+			 * Delay the vm and vm mutex freeing until the
+			 * object is done with destruction.
+			 */
+			i915_vm_resv_get(vma->vm);
+			vma->vm_ddestroy = true;
+		} else {
+			i915_vma_destroy_locked(vma);
+			i915_gem_object_put(obj);
 		}
 
-		/* Keep the obj (and hence the vma) alive as _we_ destroy it */
-		i915_vma_destroy_locked(vma);
-		i915_gem_object_put(obj);
 	}
+}
+
+static void __i915_vm_close(struct i915_address_space *vm)
+{
+	mutex_lock(&vm->mutex);
+
+	clear_vm_list(&vm->bound_list);
+	clear_vm_list(&vm->unbound_list);
+
+	/* Check for must-fix unanticipated side-effects */
 	GEM_BUG_ON(!list_empty(&vm->bound_list));
+	GEM_BUG_ON(!list_empty(&vm->unbound_list));
 
 	mutex_unlock(&vm->mutex);
 }
@@ -144,7 +176,6 @@ int i915_vm_lock_objects(struct i915_address_space *vm,
 void i915_address_space_fini(struct i915_address_space *vm)
 {
 	drm_mm_takedown(&vm->mm);
-	mutex_destroy(&vm->mutex);
 }
 
 /**
@@ -152,7 +183,8 @@ void i915_address_space_fini(struct i915_address_space *vm)
  * @kref: Pointer to the &i915_address_space.resv_ref member.
  *
  * This function is called when the last lock sharer no longer shares the
- * &i915_address_space._resv lock.
+ * &i915_address_space._resv lock, and also if we raced when
+ * destroying a vma by the vma destruction
  */
 void i915_vm_resv_release(struct kref *kref)
 {
@@ -160,6 +192,8 @@ void i915_vm_resv_release(struct kref *kref)
 		container_of(kref, typeof(*vm), resv_ref);
 
 	dma_resv_fini(&vm->_resv);
+	mutex_destroy(&vm->mutex);
+
 	kfree(vm);
 }
 
@@ -168,6 +202,8 @@ static void __i915_vm_release(struct work_struct *work)
 	struct i915_address_space *vm =
 		container_of(work, struct i915_address_space, release_work);
 
+	__i915_vm_close(vm);
+
 	/* Synchronize async unbinds. */
 	i915_vma_resource_bind_dep_sync_all(vm);
 
@@ -201,7 +237,6 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass)
 
 	vm->pending_unbind = RB_ROOT_CACHED;
 	INIT_WORK(&vm->release_work, __i915_vm_release);
-	atomic_set(&vm->open, 1);
 
 	/*
 	 * The vm->mutex must be reclaim safe (for use in the shrinker).
@@ -246,6 +281,7 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass)
 	vm->mm.head_node.color = I915_COLOR_UNEVICTABLE;
 
 	INIT_LIST_HEAD(&vm->bound_list);
+	INIT_LIST_HEAD(&vm->unbound_list);
 }
 
 void *__px_vaddr(struct drm_i915_gem_object *p)
@@ -274,7 +310,7 @@ fill_page_dma(struct drm_i915_gem_object *p, const u64 val, unsigned int count)
 	void *vaddr = __px_vaddr(p);
 
 	memset64(vaddr, val, count);
-	clflush_cache_range(vaddr, PAGE_SIZE);
+	drm_clflush_virt_range(vaddr, PAGE_SIZE);
 }
 
 static void poison_scratch_page(struct drm_i915_gem_object *scratch)