Merge tag 'drm-misc-next-2021-06-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.14:

UAPI Changes:

 * drm/panfrost: Export AFBC_FEATURES register to userspace

Cross-subsystem Changes:

 * dma-buf: Fix debug printing; Rename dma_resv_*() functions + changes
   in callers; Cleanups

Core Changes:

 * Add prefetching memcpy for WC

 * Avoid circular dependency on CONFIG_FB

 * Cleanups

 * Documentation fixes throughout DRM

 * ttm: Make struct ttm_resource the base of all managers + changes
   in all users of TTM; Add a generic memcpy for page-based iomem; Remove
   use of VM_MIXEDMAP; Cleanups

Driver Changes:

 * drm/bridge: Add TI SN65DSI83 and SN65DSI84 + DT bindings

 * drm/hyperv: Add DRM driver for HyperV graphics output

 * drm/msm: Fix module dependencies

 * drm/panel: KD53T133: Support rotation

 * drm/pl111: Fix module dependencies

 * drm/qxl: Fixes

 * drm/stm: Cleanups

 * drm/sun4i: Be explicit about format modifiers

 * drm/vc4: Use struct gpio_desc; Cleanups

 * drm/vgem: Cleanups

 * drm/vmwgfx: Use ttm_bo_move_null() if there's nothing to copy

 * fbdev/mach64: Cleanups

 * fbdev/mb862xx: Use DEVICE_ATTR_RO

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YMBw3DF2b9udByfT@linux-uq9g

1 files changed, 52 insertions, 40 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 9ab33048923e..ec96e0b26b11 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -22,18 +22,26 @@
  * Authors: Christian König
  */
 
+#include <drm/ttm/ttm_range_manager.h>
+
 #include "amdgpu.h"
 
+struct amdgpu_gtt_node {
+	struct ttm_buffer_object *tbo;
+	struct ttm_range_mgr_node base;
+};
+
 static inline struct amdgpu_gtt_mgr *
 to_gtt_mgr(struct ttm_resource_manager *man)
 {
 	return container_of(man, struct amdgpu_gtt_mgr, manager);
 }
 
-struct amdgpu_gtt_node {
-	struct drm_mm_node node;
-	struct ttm_buffer_object *tbo;
-};
+static inline struct amdgpu_gtt_node *
+to_amdgpu_gtt_node(struct ttm_resource *res)
+{
+	return container_of(res, struct amdgpu_gtt_node, base.base);
+}
 
 /**
  * DOC: mem_info_gtt_total
@@ -93,13 +101,15 @@ const struct attribute_group amdgpu_gtt_mgr_attr_group = {
 /**
  * amdgpu_gtt_mgr_has_gart_addr - Check if mem has address space
  *
- * @mem: the mem object to check
+ * @res: the mem object to check
  *
  * Check if a mem object has already address space allocated.
  */
-bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *mem)
+bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *res)
 {
-	return mem->mm_node != NULL;
+	struct amdgpu_gtt_node *node = to_amdgpu_gtt_node(res);
+
+	return drm_mm_node_allocated(&node->base.mm_nodes[0]);
 }
 
 /**
@@ -115,54 +125,57 @@ bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *mem)
 static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man,
 			      struct ttm_buffer_object *tbo,
 			      const struct ttm_place *place,
-			      struct ttm_resource *mem)
+			      struct ttm_resource **res)
 {
 	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
+	uint32_t num_pages = PFN_UP(tbo->base.size);
 	struct amdgpu_gtt_node *node;
 	int r;
 
 	spin_lock(&mgr->lock);
-	if ((&tbo->mem == mem || tbo->mem.mem_type != TTM_PL_TT) &&
-	    atomic64_read(&mgr->available) < mem->num_pages) {
+	if (tbo->resource && tbo->resource->mem_type != TTM_PL_TT &&
+	    atomic64_read(&mgr->available) < num_pages) {
 		spin_unlock(&mgr->lock);
 		return -ENOSPC;
 	}
-	atomic64_sub(mem->num_pages, &mgr->available);
+	atomic64_sub(num_pages, &mgr->available);
 	spin_unlock(&mgr->lock);
 
-	if (!place->lpfn) {
-		mem->mm_node = NULL;
-		mem->start = AMDGPU_BO_INVALID_OFFSET;
-		return 0;
-	}
-
-	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	node = kzalloc(struct_size(node, base.mm_nodes, 1), GFP_KERNEL);
 	if (!node) {
 		r = -ENOMEM;
 		goto err_out;
 	}
 
 	node->tbo = tbo;
+	ttm_resource_init(tbo, place, &node->base.base);
 
-	spin_lock(&mgr->lock);
-	r = drm_mm_insert_node_in_range(&mgr->mm, &node->node, mem->num_pages,
-					tbo->page_alignment, 0, place->fpfn,
-					place->lpfn, DRM_MM_INSERT_BEST);
-	spin_unlock(&mgr->lock);
-
-	if (unlikely(r))
-		goto err_free;
-
-	mem->mm_node = node;
-	mem->start = node->node.start;
+	if (place->lpfn) {
+		spin_lock(&mgr->lock);
+		r = drm_mm_insert_node_in_range(&mgr->mm,
+						&node->base.mm_nodes[0],
+						num_pages, tbo->page_alignment,
+						0, place->fpfn, place->lpfn,
+						DRM_MM_INSERT_BEST);
+		spin_unlock(&mgr->lock);
+		if (unlikely(r))
+			goto err_free;
+
+		node->base.base.start = node->base.mm_nodes[0].start;
+	} else {
+		node->base.mm_nodes[0].start = 0;
+		node->base.mm_nodes[0].size = node->base.base.num_pages;
+		node->base.base.start = AMDGPU_BO_INVALID_OFFSET;
+	}
 
+	*res = &node->base.base;
 	return 0;
 
 err_free:
 	kfree(node);
 
 err_out:
-	atomic64_add(mem->num_pages, &mgr->available);
+	atomic64_add(num_pages, &mgr->available);
 
 	return r;
 }
@@ -176,19 +189,18 @@ err_out:
  * Free the allocated GTT again.
  */
 static void amdgpu_gtt_mgr_del(struct ttm_resource_manager *man,
-			       struct ttm_resource *mem)
+			       struct ttm_resource *res)
 {
+	struct amdgpu_gtt_node *node = to_amdgpu_gtt_node(res);
 	struct amdgpu_gtt_mgr *mgr = to_gtt_mgr(man);
-	struct amdgpu_gtt_node *node = mem->mm_node;
 
-	if (node) {
-		spin_lock(&mgr->lock);
-		drm_mm_remove_node(&node->node);
-		spin_unlock(&mgr->lock);
-		kfree(node);
-	}
+	spin_lock(&mgr->lock);
+	if (drm_mm_node_allocated(&node->base.mm_nodes[0]))
+		drm_mm_remove_node(&node->base.mm_nodes[0]);
+	spin_unlock(&mgr->lock);
+	atomic64_add(res->num_pages, &mgr->available);
 
-	atomic64_add(mem->num_pages, &mgr->available);
+	kfree(node);
 }
 
 /**
@@ -224,7 +236,7 @@ int amdgpu_gtt_mgr_recover(struct ttm_resource_manager *man)
 	adev = container_of(mgr, typeof(*adev), mman.gtt_mgr);
 	spin_lock(&mgr->lock);
 	drm_mm_for_each_node(mm_node, &mgr->mm) {
-		node = container_of(mm_node, struct amdgpu_gtt_node, node);
+		node = container_of(mm_node, typeof(*node), base.mm_nodes[0]);
 		r = amdgpu_ttm_recover_gart(node->tbo);
 		if (r)
 			break;