1 files changed, 153 insertions, 66 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 15a28578d458..51eacefadea1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -44,6 +44,7 @@
 #include <linux/debugfs.h>
 #include <linux/iommu.h>
 #include "amdgpu.h"
+#include "amdgpu_object.h"
 #include "amdgpu_trace.h"
 #include "bif/bif_4_1_d.h"
 
@@ -209,7 +210,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
 		placement->num_busy_placement = 1;
 		return;
 	}
-	abo = container_of(bo, struct amdgpu_bo, tbo);
+	abo = ttm_to_amdgpu_bo(bo);
 	switch (bo->mem.mem_type) {
 	case TTM_PL_VRAM:
 		if (adev->mman.buffer_funcs &&
@@ -257,7 +258,7 @@ gtt:
 
 static int amdgpu_verify_access(struct ttm_buffer_object *bo, struct file *filp)
 {
-	struct amdgpu_bo *abo = container_of(bo, struct amdgpu_bo, tbo);
+	struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
 
 	if (amdgpu_ttm_tt_get_usermm(bo->ttm))
 		return -EPERM;
@@ -289,97 +290,177 @@ static uint64_t amdgpu_mm_node_addr(struct ttm_buffer_object *bo,
 	return addr;
 }
 
-static int amdgpu_move_blit(struct ttm_buffer_object *bo,
-			    bool evict, bool no_wait_gpu,
-			    struct ttm_mem_reg *new_mem,
-			    struct ttm_mem_reg *old_mem)
+/**
+ * amdgpu_find_mm_node - Helper function finds the drm_mm_node
+ *  corresponding to @offset. It also modifies the offset to be
+ *  within the drm_mm_node returned
+ */
+static struct drm_mm_node *amdgpu_find_mm_node(struct ttm_mem_reg *mem,
+					       unsigned long *offset)
 {
-	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
-	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
+	struct drm_mm_node *mm_node = mem->mm_node;
 
-	struct drm_mm_node *old_mm, *new_mm;
-	uint64_t old_start, old_size, new_start, new_size;
-	unsigned long num_pages;
-	struct dma_fence *fence = NULL;
-	int r;
+	while (*offset >= (mm_node->size << PAGE_SHIFT)) {
+		*offset -= (mm_node->size << PAGE_SHIFT);
+		++mm_node;
+	}
+	return mm_node;
+}
 
-	BUILD_BUG_ON((PAGE_SIZE % AMDGPU_GPU_PAGE_SIZE) != 0);
+/**
+ * amdgpu_copy_ttm_mem_to_mem - Helper function for copy
+ *
+ * The function copies @size bytes from {src->mem + src->offset} to
+ * {dst->mem + dst->offset}. src->bo and dst->bo could be same BO for a
+ * move and different for a BO to BO copy.
+ *
+ * @f: Returns the last fence if multiple jobs are submitted.
+ */
+int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
+			       struct amdgpu_copy_mem *src,
+			       struct amdgpu_copy_mem *dst,
+			       uint64_t size,
+			       struct reservation_object *resv,
+			       struct dma_fence **f)
+{
+	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
+	struct drm_mm_node *src_mm, *dst_mm;
+	uint64_t src_node_start, dst_node_start, src_node_size,
+		 dst_node_size, src_page_offset, dst_page_offset;
+	struct dma_fence *fence = NULL;
+	int r = 0;
+	const uint64_t GTT_MAX_BYTES = (AMDGPU_GTT_MAX_TRANSFER_SIZE *
+					AMDGPU_GPU_PAGE_SIZE);
 
 	if (!ring->ready) {
 		DRM_ERROR("Trying to move memory with ring turned off.\n");
 		return -EINVAL;
 	}
 
-	old_mm = old_mem->mm_node;
-	old_size = old_mm->size;
-	old_start = amdgpu_mm_node_addr(bo, old_mm, old_mem);
+	src_mm = amdgpu_find_mm_node(src->mem, &src->offset);
+	src_node_start = amdgpu_mm_node_addr(src->bo, src_mm, src->mem) +
+					     src->offset;
+	src_node_size = (src_mm->size << PAGE_SHIFT) - src->offset;
+	src_page_offset = src_node_start & (PAGE_SIZE - 1);
 
-	new_mm = new_mem->mm_node;
-	new_size = new_mm->size;
-	new_start = amdgpu_mm_node_addr(bo, new_mm, new_mem);
+	dst_mm = amdgpu_find_mm_node(dst->mem, &dst->offset);
+	dst_node_start = amdgpu_mm_node_addr(dst->bo, dst_mm, dst->mem) +
+					     dst->offset;
+	dst_node_size = (dst_mm->size << PAGE_SHIFT) - dst->offset;
+	dst_page_offset = dst_node_start & (PAGE_SIZE - 1);
 
-	num_pages = new_mem->num_pages;
 	mutex_lock(&adev->mman.gtt_window_lock);
-	while (num_pages) {
-		unsigned long cur_pages = min(min(old_size, new_size),
-					      (u64)AMDGPU_GTT_MAX_TRANSFER_SIZE);
-		uint64_t from = old_start, to = new_start;
+
+	while (size) {
+		unsigned long cur_size;
+		uint64_t from = src_node_start, to = dst_node_start;
 		struct dma_fence *next;
 
-		if (old_mem->mem_type == TTM_PL_TT &&
-		    !amdgpu_gtt_mgr_is_allocated(old_mem)) {
-			r = amdgpu_map_buffer(bo, old_mem, cur_pages,
-					      old_start, 0, ring, &from);
+		/* Copy size cannot exceed GTT_MAX_BYTES. So if src or dst
+		 * begins at an offset, then adjust the size accordingly
+		 */
+		cur_size = min3(min(src_node_size, dst_node_size), size,
+				GTT_MAX_BYTES);
+		if (cur_size + src_page_offset > GTT_MAX_BYTES ||
+		    cur_size + dst_page_offset > GTT_MAX_BYTES)
+			cur_size -= max(src_page_offset, dst_page_offset);
+
+		/* Map only what needs to be accessed. Map src to window 0 and
+		 * dst to window 1
+		 */
+		if (src->mem->mem_type == TTM_PL_TT &&
+		    !amdgpu_gtt_mgr_is_allocated(src->mem)) {
+			r = amdgpu_map_buffer(src->bo, src->mem,
+					PFN_UP(cur_size + src_page_offset),
+					src_node_start, 0, ring,
+					&from);
 			if (r)
 				goto error;
+			/* Adjust the offset because amdgpu_map_buffer returns
+			 * start of mapped page
+			 */
+			from += src_page_offset;
 		}
 
-		if (new_mem->mem_type == TTM_PL_TT &&
-		    !amdgpu_gtt_mgr_is_allocated(new_mem)) {
-			r = amdgpu_map_buffer(bo, new_mem, cur_pages,
-					      new_start, 1, ring, &to);
+		if (dst->mem->mem_type == TTM_PL_TT &&
+		    !amdgpu_gtt_mgr_is_allocated(dst->mem)) {
+			r = amdgpu_map_buffer(dst->bo, dst->mem,
+					PFN_UP(cur_size + dst_page_offset),
+					dst_node_start, 1, ring,
+					&to);
 			if (r)
 				goto error;
+			to += dst_page_offset;
 		}
 
-		r = amdgpu_copy_buffer(ring, from, to,
-				       cur_pages * PAGE_SIZE,
-				       bo->resv, &next, false, true);
+		r = amdgpu_copy_buffer(ring, from, to, cur_size,
+				       resv, &next, false, true);
 		if (r)
 			goto error;
 
 		dma_fence_put(fence);
 		fence = next;
 
-		num_pages -= cur_pages;
-		if (!num_pages)
+		size -= cur_size;
+		if (!size)
 			break;
 
-		old_size -= cur_pages;
-		if (!old_size) {
-			old_start = amdgpu_mm_node_addr(bo, ++old_mm, old_mem);
-			old_size = old_mm->size;
+		src_node_size -= cur_size;
+		if (!src_node_size) {
+			src_node_start = amdgpu_mm_node_addr(src->bo, ++src_mm,
+							     src->mem);
+			src_node_size = (src_mm->size << PAGE_SHIFT);
 		} else {
-			old_start += cur_pages * PAGE_SIZE;
+			src_node_start += cur_size;
+			src_page_offset = src_node_start & (PAGE_SIZE - 1);
 		}
-
-		new_size -= cur_pages;
-		if (!new_size) {
-			new_start = amdgpu_mm_node_addr(bo, ++new_mm, new_mem);
-			new_size = new_mm->size;
+		dst_node_size -= cur_size;
+		if (!dst_node_size) {
+			dst_node_start = amdgpu_mm_node_addr(dst->bo, ++dst_mm,
+							     dst->mem);
+			dst_node_size = (dst_mm->size << PAGE_SHIFT);
 		} else {
-			new_start += cur_pages * PAGE_SIZE;
+			dst_node_start += cur_size;
+			dst_page_offset = dst_node_start & (PAGE_SIZE - 1);
 		}
 	}
+error:
 	mutex_unlock(&adev->mman.gtt_window_lock);
+	if (f)
+		*f = dma_fence_get(fence);
+	dma_fence_put(fence);
+	return r;
+}
+
+
+static int amdgpu_move_blit(struct ttm_buffer_object *bo,
+			    bool evict, bool no_wait_gpu,
+			    struct ttm_mem_reg *new_mem,
+			    struct ttm_mem_reg *old_mem)
+{
+	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
+	struct amdgpu_copy_mem src, dst;
+	struct dma_fence *fence = NULL;
+	int r;
+
+	src.bo = bo;
+	dst.bo = bo;
+	src.mem = old_mem;
+	dst.mem = new_mem;
+	src.offset = 0;
+	dst.offset = 0;
+
+	r = amdgpu_ttm_copy_mem_to_mem(adev, &src, &dst,
+				       new_mem->num_pages << PAGE_SHIFT,
+				       bo->resv, &fence);
+	if (r)
+		goto error;
 
 	r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
 	dma_fence_put(fence);
 	return r;
 
 error:
-	mutex_unlock(&adev->mman.gtt_window_lock);
-
 	if (fence)
 		dma_fence_wait(fence, false);
 	dma_fence_put(fence);
@@ -484,7 +565,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
 	int r;
 
 	/* Can't move a pinned BO */
-	abo = container_of(bo, struct amdgpu_bo, tbo);
+	abo = ttm_to_amdgpu_bo(bo);
 	if (WARN_ON_ONCE(abo->pin_count > 0))
 		return -EINVAL;
 
@@ -582,13 +663,12 @@ static void amdgpu_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_re
 static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo,
 					   unsigned long page_offset)
 {
-	struct drm_mm_node *mm = bo->mem.mm_node;
-	uint64_t size = mm->size;
-	uint64_t offset = page_offset;
+	struct drm_mm_node *mm;
+	unsigned long offset = (page_offset << PAGE_SHIFT);
 
-	page_offset = do_div(offset, size);
-	mm += offset;
-	return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
+	mm = amdgpu_find_mm_node(&bo->mem, &offset);
+	return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start +
+		(offset >> PAGE_SHIFT);
 }
 
 /*
@@ -1142,9 +1222,9 @@ static int amdgpu_ttm_access_memory(struct ttm_buffer_object *bo,
 				    unsigned long offset,
 				    void *buf, int len, int write)
 {
-	struct amdgpu_bo *abo = container_of(bo, struct amdgpu_bo, tbo);
+	struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
 	struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
-	struct drm_mm_node *nodes = abo->tbo.mem.mm_node;
+	struct drm_mm_node *nodes;
 	uint32_t value = 0;
 	int ret = 0;
 	uint64_t pos;
@@ -1153,10 +1233,7 @@ static int amdgpu_ttm_access_memory(struct ttm_buffer_object *bo,
 	if (bo->mem.mem_type != TTM_PL_VRAM)
 		return -EIO;
 
-	while (offset >= (nodes->size << PAGE_SHIFT)) {
-		offset -= nodes->size << PAGE_SHIFT;
-		++nodes;
-	}
+	nodes = amdgpu_find_mm_node(&abo->tbo.mem, &offset);
 	pos = (nodes->start << PAGE_SHIFT) + offset;
 
 	while (len && pos < adev->mc.mc_vram_size) {
@@ -1255,6 +1332,15 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
 	/* Change the size here instead of the init above so only lpfn is affected */
 	amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
 
+	/*
+	 *The reserved vram for firmware must be pinned to the specified
+	 *place on the VRAM, so reserve it early.
+	 */
+	r = amdgpu_fw_reserve_vram_init(adev);
+	if (r) {
+		return r;
+	}
+
 	r = amdgpu_bo_create_kernel(adev, adev->mc.stolen_size, PAGE_SIZE,
 				    AMDGPU_GEM_DOMAIN_VRAM,
 				    &adev->stolen_vga_memory,
@@ -1479,7 +1565,8 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
 	job->vm_needs_flush = vm_needs_flush;
 	if (resv) {
 		r = amdgpu_sync_resv(adev, &job->sync, resv,
-				     AMDGPU_FENCE_OWNER_UNDEFINED);
+				     AMDGPU_FENCE_OWNER_UNDEFINED,
+				     false);
 		if (r) {
 			DRM_ERROR("sync failed (%d).\n", r);
 			goto error_free;
@@ -1571,7 +1658,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 
 	if (resv) {
 		r = amdgpu_sync_resv(adev, &job->sync, resv,
-				     AMDGPU_FENCE_OWNER_UNDEFINED);
+				     AMDGPU_FENCE_OWNER_UNDEFINED, false);
 		if (r) {
 			DRM_ERROR("sync failed (%d).\n", r);
 			goto error_free;