Merge tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Highlights:

   - i915 has seen a lot of refactoring and uAPI cleanups due to a
     change in the upstream direction going forward

     This has all been audited with known userspace, but there may be
     some pitfalls that were missed.

   - i915 now uses common TTM to enable discrete memory on DG1/2 GPUs

   - i915 enables Jasper and Elkhart Lake by default and has preliminary
     XeHP/DG2 support

   - amdgpu adds support for Cyan Skillfish

   - lots of implicit fencing rules documented and fixed up in drivers

   - msm now uses the core scheduler

   - the irq midlayer has been removed for non-legacy drivers

   - the sysfb code now works on more than x86.

  Otherwise the usual smattering of stuff everywhere, panels, bridges,
  refactorings.

  Detailed summary:

  core:
   - extract i915 eDP backlight into core
   - DP aux bus support
   - drm_device.irq_enabled removed
   - port drivers to native irq interfaces
   - export gem shadow plane handling for vgem
   - print proper driver name in framebuffer registration
   - driver fixes for implicit fencing rules
   - ARM fixed rate compression modifier added
   - updated fb damage handling
   - rmfb ioctl logging/docs
   - drop drm_gem_object_put_locked
   - define DRM_FORMAT_MAX_PLANES
   - add gem fb vmap/vunmap helpers
   - add lockdep_assert(once) helpers
   - mark drm irq midlayer as legacy
   - use offset adjusted bo mapping conversion

  vgaarb:
   - cleanups

  fbdev:
   - extend efifb handling to all arches
   - div by 0 fixes for multiple drivers

  udmabuf:
   - add hugepage mapping support

  dma-buf:
   - non-dynamic exporter fixups
   - document implicit fencing rules

  amdgpu:
   - Initial Cyan Skillfish support
   - switch virtual DCE over to vkms based atomic
   - VCN/JPEG power down fixes
   - NAVI PCIE link handling fixes
   - AMD HDMI freesync fixes
   - Yellow Carp + Beige Goby fixes
   - Clockgating/S0ix/SMU/EEPROM fixes
   - embed hw fence in job
   - rework dma-resv handling
   - ensure eviction to system ram

  amdkfd:
   - uapi: SVM address range query added
   - sysfs leak fix
   - GPUVM TLB optimizations
   - vmfault/migration counters

  i915:
   - Enable JSL and EHL by default
   - preliminary XeHP/DG2 support
   - remove all CNL support (never shipped)
   - move to TTM for discrete memory support
   - allow mixed object mmap handling
   - GEM uAPI spring cleaning
       - add I915_MMAP_OBJECT_FIXED
       - reinstate ADL-P mmap ioctls
       - drop a bunch of unused by userspace features
       - disable and remove GPU relocations
   - revert some i915 misfeatures
   - major refactoring of GuC for Gen11+
   - execbuffer object locking separate step
   - reject caching/set-domain on discrete
   - Enable pipe DMC loading on XE-LPD and ADL-P
   - add PSF GV point support
   - Refactor and fix DDI buffer translations
   - Clean up FBC CFB allocation code
   - Finish INTEL_GEN() and friends macro conversions

  nouveau:
   - add eDP backlight support
   - implicit fence fix

  msm:
   - a680/7c3 support
   - drm/scheduler conversion

  panfrost:
   - rework GPU reset

  virtio:
   - fix fencing for planes

  ast:
   - add detect support

  bochs:
   - move to tiny GPU driver

  vc4:
   - use hotplug irqs
   - HDMI codec support

  vmwgfx:
   - use internal vmware device headers

  ingenic:
   - demidlayering irq

  rcar-du:
   - shutdown fixes
   - convert to bridge connector helpers

  zynqmp-dsub:
   - misc fixes

  mgag200:
   - convert PLL handling to atomic

  mediatek:
   - MT8133 AAL support
   - gem mmap object support
   - MT8167 support

  etnaviv:
   - NXP Layerscape LS1028A SoC support
   - GEM mmap cleanups

  tegra:
   - new user API

  exynos:
   - missing unlock fix
   - build warning fix
   - use refcount_t"

* tag 'drm-next-2021-08-31-1' of git://anongit.freedesktop.org/drm/drm: (1318 commits)
  drm/amd/display: Move AllowDRAMSelfRefreshOrDRAMClockChangeInVblank to bounding box
  drm/amd/display: Remove duplicate dml init
  drm/amd/display: Update bounding box states (v2)
  drm/amd/display: Update number of DCN3 clock states
  drm/amdgpu: disable GFX CGCG in aldebaran
  drm/amdgpu: Clear RAS interrupt status on aldebaran
  drm/amdgpu: Add support for RAS XGMI err query
  drm/amdkfd: Account for SH/SE count when setting up cu masks.
  drm/amdgpu: rename amdgpu_bo_get_preferred_pin_domain
  drm/amdgpu: drop redundant cancel_delayed_work_sync call
  drm/amdgpu: add missing cleanups for more ASICs on UVD/VCE suspend
  drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend
  drm/amdkfd: map SVM range with correct access permission
  drm/amdkfd: check access permisson to restore retry fault
  drm/amdgpu: Update RAS XGMI Error Query
  drm/amdgpu: Add driver infrastructure for MCA RAS
  drm/amd/display: Add Logging for HDMI color depth information
  drm/amd/amdgpu: consolidate PSP TA init shared buf functions
  drm/amd/amdgpu: add name field back to ras_common_if
  drm/amdgpu: Fix build with missing pm_suspend_target_state module export
  ...

1 files changed, 93 insertions, 95 deletions

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c
index 548ddf39d853..23fee13a3384 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_create.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c
@@ -11,13 +11,14 @@
 #include "i915_trace.h"
 #include "i915_user_extensions.h"
 
-static u32 object_max_page_size(struct drm_i915_gem_object *obj)
+static u32 object_max_page_size(struct intel_memory_region **placements,
+				unsigned int n_placements)
 {
 	u32 max_page_size = 0;
 	int i;
 
-	for (i = 0; i < obj->mm.n_placements; i++) {
-		struct intel_memory_region *mr = obj->mm.placements[i];
+	for (i = 0; i < n_placements; i++) {
+		struct intel_memory_region *mr = placements[i];
 
 		GEM_BUG_ON(!is_power_of_2(mr->min_page_size));
 		max_page_size = max_t(u32, max_page_size, mr->min_page_size);
@@ -27,10 +28,13 @@ static u32 object_max_page_size(struct drm_i915_gem_object *obj)
 	return max_page_size;
 }
 
-static void object_set_placements(struct drm_i915_gem_object *obj,
-				  struct intel_memory_region **placements,
-				  unsigned int n_placements)
+static int object_set_placements(struct drm_i915_gem_object *obj,
+				 struct intel_memory_region **placements,
+				 unsigned int n_placements)
 {
+	struct intel_memory_region **arr;
+	unsigned int i;
+
 	GEM_BUG_ON(!n_placements);
 
 	/*
@@ -44,9 +48,20 @@ static void object_set_placements(struct drm_i915_gem_object *obj,
 		obj->mm.placements = &i915->mm.regions[mr->id];
 		obj->mm.n_placements = 1;
 	} else {
-		obj->mm.placements = placements;
+		arr = kmalloc_array(n_placements,
+				    sizeof(struct intel_memory_region *),
+				    GFP_KERNEL);
+		if (!arr)
+			return -ENOMEM;
+
+		for (i = 0; i < n_placements; i++)
+			arr[i] = placements[i];
+
+		obj->mm.placements = arr;
 		obj->mm.n_placements = n_placements;
 	}
+
+	return 0;
 }
 
 static int i915_gem_publish(struct drm_i915_gem_object *obj,
@@ -67,40 +82,67 @@ static int i915_gem_publish(struct drm_i915_gem_object *obj,
 	return 0;
 }
 
-static int
-i915_gem_setup(struct drm_i915_gem_object *obj, u64 size)
+/**
+ * Creates a new object using the same path as DRM_I915_GEM_CREATE_EXT
+ * @i915: i915 private
+ * @size: size of the buffer, in bytes
+ * @placements: possible placement regions, in priority order
+ * @n_placements: number of possible placement regions
+ *
+ * This function is exposed primarily for selftests and does very little
+ * error checking.  It is assumed that the set of placement regions has
+ * already been verified to be valid.
+ */
+struct drm_i915_gem_object *
+__i915_gem_object_create_user(struct drm_i915_private *i915, u64 size,
+			      struct intel_memory_region **placements,
+			      unsigned int n_placements)
 {
-	struct intel_memory_region *mr = obj->mm.placements[0];
+	struct intel_memory_region *mr = placements[0];
+	struct drm_i915_gem_object *obj;
 	unsigned int flags;
 	int ret;
 
-	size = round_up(size, object_max_page_size(obj));
+	i915_gem_flush_free_objects(i915);
+
+	size = round_up(size, object_max_page_size(placements, n_placements));
 	if (size == 0)
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 
 	/* For most of the ABI (e.g. mmap) we think in system pages */
 	GEM_BUG_ON(!IS_ALIGNED(size, PAGE_SIZE));
 
 	if (i915_gem_object_size_2big(size))
-		return -E2BIG;
+		return ERR_PTR(-E2BIG);
+
+	obj = i915_gem_object_alloc();
+	if (!obj)
+		return ERR_PTR(-ENOMEM);
+
+	ret = object_set_placements(obj, placements, n_placements);
+	if (ret)
+		goto object_free;
 
 	/*
-	 * For now resort to CPU based clearing for device local-memory, in the
-	 * near future this will use the blitter engine for accelerated, GPU
-	 * based clearing.
+	 * I915_BO_ALLOC_USER will make sure the object is cleared before
+	 * any user access.
 	 */
-	flags = 0;
-	if (mr->type == INTEL_MEMORY_LOCAL)
-		flags = I915_BO_ALLOC_CPU_CLEAR;
+	flags = I915_BO_ALLOC_USER;
 
-	ret = mr->ops->init_object(mr, obj, size, flags);
+	ret = mr->ops->init_object(mr, obj, size, 0, flags);
 	if (ret)
-		return ret;
+		goto object_free;
 
 	GEM_BUG_ON(size != obj->base.size);
 
 	trace_i915_gem_object_create(obj);
-	return 0;
+	return obj;
+
+object_free:
+	if (obj->mm.n_placements > 1)
+		kfree(obj->mm.placements);
+	i915_gem_object_free(obj);
+	return ERR_PTR(ret);
 }
 
 int
@@ -113,7 +155,6 @@ i915_gem_dumb_create(struct drm_file *file,
 	enum intel_memory_type mem_type;
 	int cpp = DIV_ROUND_UP(args->bpp, 8);
 	u32 format;
-	int ret;
 
 	switch (cpp) {
 	case 1:
@@ -146,22 +187,13 @@ i915_gem_dumb_create(struct drm_file *file,
 	if (HAS_LMEM(to_i915(dev)))
 		mem_type = INTEL_MEMORY_LOCAL;
 
-	obj = i915_gem_object_alloc();
-	if (!obj)
-		return -ENOMEM;
-
 	mr = intel_memory_region_by_type(to_i915(dev), mem_type);
-	object_set_placements(obj, &mr, 1);
 
-	ret = i915_gem_setup(obj, args->size);
-	if (ret)
-		goto object_free;
+	obj = __i915_gem_object_create_user(to_i915(dev), args->size, &mr, 1);
+	if (IS_ERR(obj))
+		return PTR_ERR(obj);
 
 	return i915_gem_publish(obj, file, &args->size, &args->handle);
-
-object_free:
-	i915_gem_object_free(obj);
-	return ret;
 }
 
 /**
@@ -178,31 +210,20 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data,
 	struct drm_i915_gem_create *args = data;
 	struct drm_i915_gem_object *obj;
 	struct intel_memory_region *mr;
-	int ret;
-
-	i915_gem_flush_free_objects(i915);
-
-	obj = i915_gem_object_alloc();
-	if (!obj)
-		return -ENOMEM;
 
 	mr = intel_memory_region_by_type(i915, INTEL_MEMORY_SYSTEM);
-	object_set_placements(obj, &mr, 1);
 
-	ret = i915_gem_setup(obj, args->size);
-	if (ret)
-		goto object_free;
+	obj = __i915_gem_object_create_user(i915, args->size, &mr, 1);
+	if (IS_ERR(obj))
+		return PTR_ERR(obj);
 
 	return i915_gem_publish(obj, file, &args->size, &args->handle);
-
-object_free:
-	i915_gem_object_free(obj);
-	return ret;
 }
 
 struct create_ext {
 	struct drm_i915_private *i915;
-	struct drm_i915_gem_object *vanilla_object;
+	struct intel_memory_region *placements[INTEL_REGION_UNKNOWN];
+	unsigned int n_placements;
 };
 
 static void repr_placements(char *buf, size_t size,
@@ -233,8 +254,7 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args,
 	struct drm_i915_private *i915 = ext_data->i915;
 	struct drm_i915_gem_memory_class_instance __user *uregions =
 		u64_to_user_ptr(args->regions);
-	struct drm_i915_gem_object *obj = ext_data->vanilla_object;
-	struct intel_memory_region **placements;
+	struct intel_memory_region *placements[INTEL_REGION_UNKNOWN];
 	u32 mask;
 	int i, ret = 0;
 
@@ -248,6 +268,8 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args,
 		ret = -EINVAL;
 	}
 
+	BUILD_BUG_ON(ARRAY_SIZE(i915->mm.regions) != ARRAY_SIZE(placements));
+	BUILD_BUG_ON(ARRAY_SIZE(ext_data->placements) != ARRAY_SIZE(placements));
 	if (args->num_regions > ARRAY_SIZE(i915->mm.regions)) {
 		drm_dbg(&i915->drm, "num_regions is too large\n");
 		ret = -EINVAL;
@@ -256,21 +278,13 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args,
 	if (ret)
 		return ret;
 
-	placements = kmalloc_array(args->num_regions,
-				   sizeof(struct intel_memory_region *),
-				   GFP_KERNEL);
-	if (!placements)
-		return -ENOMEM;
-
 	mask = 0;
 	for (i = 0; i < args->num_regions; i++) {
 		struct drm_i915_gem_memory_class_instance region;
 		struct intel_memory_region *mr;
 
-		if (copy_from_user(&region, uregions, sizeof(region))) {
-			ret = -EFAULT;
-			goto out_free;
-		}
+		if (copy_from_user(&region, uregions, sizeof(region)))
+			return -EFAULT;
 
 		mr = intel_memory_region_lookup(i915,
 						region.memory_class,
@@ -296,14 +310,14 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args,
 		++uregions;
 	}
 
-	if (obj->mm.placements) {
+	if (ext_data->n_placements) {
 		ret = -EINVAL;
 		goto out_dump;
 	}
 
-	object_set_placements(obj, placements, args->num_regions);
-	if (args->num_regions == 1)
-		kfree(placements);
+	ext_data->n_placements = args->num_regions;
+	for (i = 0; i < args->num_regions; i++)
+		ext_data->placements[i] = placements[i];
 
 	return 0;
 
@@ -311,11 +325,11 @@ out_dump:
 	if (1) {
 		char buf[256];
 
-		if (obj->mm.placements) {
+		if (ext_data->n_placements) {
 			repr_placements(buf,
 					sizeof(buf),
-					obj->mm.placements,
-					obj->mm.n_placements);
+					ext_data->placements,
+					ext_data->n_placements);
 			drm_dbg(&i915->drm,
 				"Placements were already set in previous EXT. Existing placements: %s\n",
 				buf);
@@ -325,8 +339,6 @@ out_dump:
 		drm_dbg(&i915->drm, "New placements(so far validated): %s\n", buf);
 	}
 
-out_free:
-	kfree(placements);
 	return ret;
 }
 
@@ -361,44 +373,30 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data,
 	struct drm_i915_private *i915 = to_i915(dev);
 	struct drm_i915_gem_create_ext *args = data;
 	struct create_ext ext_data = { .i915 = i915 };
-	struct intel_memory_region **placements_ext;
 	struct drm_i915_gem_object *obj;
 	int ret;
 
 	if (args->flags)
 		return -EINVAL;
 
-	i915_gem_flush_free_objects(i915);
-
-	obj = i915_gem_object_alloc();
-	if (!obj)
-		return -ENOMEM;
-
-	ext_data.vanilla_object = obj;
 	ret = i915_user_extensions(u64_to_user_ptr(args->extensions),
 				   create_extensions,
 				   ARRAY_SIZE(create_extensions),
 				   &ext_data);
-	placements_ext = obj->mm.placements;
 	if (ret)
-		goto object_free;
+		return ret;
 
-	if (!placements_ext) {
-		struct intel_memory_region *mr =
+	if (!ext_data.n_placements) {
+		ext_data.placements[0] =
 			intel_memory_region_by_type(i915, INTEL_MEMORY_SYSTEM);
-
-		object_set_placements(obj, &mr, 1);
+		ext_data.n_placements = 1;
 	}
 
-	ret = i915_gem_setup(obj, args->size);
-	if (ret)
-		goto object_free;
+	obj = __i915_gem_object_create_user(i915, args->size,
+					    ext_data.placements,
+					    ext_data.n_placements);
+	if (IS_ERR(obj))
+		return PTR_ERR(obj);
 
 	return i915_gem_publish(obj, file, &args->size, &args->handle);
-
-object_free:
-	if (obj->mm.n_placements > 1)
-		kfree(placements_ext);
-	i915_gem_object_free(obj);
-	return ret;
 }