1 files changed, 0 insertions, 376 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
deleted file mode 100644
index df7d1c97eb82..000000000000
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c
+++ /dev/null
@@ -1,376 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR MIT
-/**************************************************************************
- *
- * Copyright 2011-2015 VMware, Inc., Palo Alto, CA., USA
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <drm/ttm/ttm_placement.h>
-
-#include <drm/drmP.h>
-#include "vmwgfx_drv.h"
-
-
-/**
- * vmw_dmabuf_pin_in_placement - Validate a buffer to placement.
- *
- * @dev_priv:  Driver private.
- * @buf:  DMA buffer to move.
- * @placement:  The placement to pin it.
- * @interruptible:  Use interruptible wait.
- *
- * Returns
- *  -ERESTARTSYS if interrupted by a signal.
- */
-int vmw_dmabuf_pin_in_placement(struct vmw_private *dev_priv,
-				struct vmw_dma_buffer *buf,
-				struct ttm_placement *placement,
-				bool interruptible)
-{
-	struct ttm_operation_ctx ctx = {interruptible, false };
-	struct ttm_buffer_object *bo = &buf->base;
-	int ret;
-	uint32_t new_flags;
-
-	ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible);
-	if (unlikely(ret != 0))
-		return ret;
-
-	vmw_execbuf_release_pinned_bo(dev_priv);
-
-	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
-	if (unlikely(ret != 0))
-		goto err;
-
-	if (buf->pin_count > 0)
-		ret = ttm_bo_mem_compat(placement, &bo->mem,
-					&new_flags) == true ? 0 : -EINVAL;
-	else
-		ret = ttm_bo_validate(bo, placement, &ctx);
-
-	if (!ret)
-		vmw_bo_pin_reserved(buf, true);
-
-	ttm_bo_unreserve(bo);
-
-err:
-	ttm_write_unlock(&dev_priv->reservation_sem);
-	return ret;
-}
-
-/**
- * vmw_dmabuf_pin_in_vram_or_gmr - Move a buffer to vram or gmr.
- *
- * This function takes the reservation_sem in write mode.
- * Flushes and unpins the query bo to avoid failures.
- *
- * @dev_priv:  Driver private.
- * @buf:  DMA buffer to move.
- * @pin:  Pin buffer if true.
- * @interruptible:  Use interruptible wait.
- *
- * Returns
- * -ERESTARTSYS if interrupted by a signal.
- */
-int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
-				  struct vmw_dma_buffer *buf,
-				  bool interruptible)
-{
-	struct ttm_operation_ctx ctx = {interruptible, false };
-	struct ttm_buffer_object *bo = &buf->base;
-	int ret;
-	uint32_t new_flags;
-
-	ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible);
-	if (unlikely(ret != 0))
-		return ret;
-
-	vmw_execbuf_release_pinned_bo(dev_priv);
-
-	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
-	if (unlikely(ret != 0))
-		goto err;
-
-	if (buf->pin_count > 0) {
-		ret = ttm_bo_mem_compat(&vmw_vram_gmr_placement, &bo->mem,
-					&new_flags) == true ? 0 : -EINVAL;
-		goto out_unreserve;
-	}
-
-	ret = ttm_bo_validate(bo, &vmw_vram_gmr_placement, &ctx);
-	if (likely(ret == 0) || ret == -ERESTARTSYS)
-		goto out_unreserve;
-
-	ret = ttm_bo_validate(bo, &vmw_vram_placement, &ctx);
-
-out_unreserve:
-	if (!ret)
-		vmw_bo_pin_reserved(buf, true);
-
-	ttm_bo_unreserve(bo);
-err:
-	ttm_write_unlock(&dev_priv->reservation_sem);
-	return ret;
-}
-
-/**
- * vmw_dmabuf_pin_in_vram - Move a buffer to vram.
- *
- * This function takes the reservation_sem in write mode.
- * Flushes and unpins the query bo to avoid failures.
- *
- * @dev_priv:  Driver private.
- * @buf:  DMA buffer to move.
- * @interruptible:  Use interruptible wait.
- *
- * Returns
- * -ERESTARTSYS if interrupted by a signal.
- */
-int vmw_dmabuf_pin_in_vram(struct vmw_private *dev_priv,
-			   struct vmw_dma_buffer *buf,
-			   bool interruptible)
-{
-	return vmw_dmabuf_pin_in_placement(dev_priv, buf, &vmw_vram_placement,
-					   interruptible);
-}
-
-/**
- * vmw_dmabuf_pin_in_start_of_vram - Move a buffer to start of vram.
- *
- * This function takes the reservation_sem in write mode.
- * Flushes and unpins the query bo to avoid failures.
- *
- * @dev_priv:  Driver private.
- * @buf:  DMA buffer to pin.
- * @interruptible:  Use interruptible wait.
- *
- * Returns
- * -ERESTARTSYS if interrupted by a signal.
- */
-int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *dev_priv,
-				    struct vmw_dma_buffer *buf,
-				    bool interruptible)
-{
-	struct ttm_operation_ctx ctx = {interruptible, false };
-	struct ttm_buffer_object *bo = &buf->base;
-	struct ttm_placement placement;
-	struct ttm_place place;
-	int ret = 0;
-	uint32_t new_flags;
-
-	place = vmw_vram_placement.placement[0];
-	place.lpfn = bo->num_pages;
-	placement.num_placement = 1;
-	placement.placement = &place;
-	placement.num_busy_placement = 1;
-	placement.busy_placement = &place;
-
-	ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible);
-	if (unlikely(ret != 0))
-		return ret;
-
-	vmw_execbuf_release_pinned_bo(dev_priv);
-	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
-	if (unlikely(ret != 0))
-		goto err_unlock;
-
-	/*
-	 * Is this buffer already in vram but not at the start of it?
-	 * In that case, evict it first because TTM isn't good at handling
-	 * that situation.
-	 */
-	if (bo->mem.mem_type == TTM_PL_VRAM &&
-	    bo->mem.start < bo->num_pages &&
-	    bo->mem.start > 0 &&
-	    buf->pin_count == 0) {
-		ctx.interruptible = false;
-		(void) ttm_bo_validate(bo, &vmw_sys_placement, &ctx);
-	}
-
-	if (buf->pin_count > 0)
-		ret = ttm_bo_mem_compat(&placement, &bo->mem,
-					&new_flags) == true ? 0 : -EINVAL;
-	else
-		ret = ttm_bo_validate(bo, &placement, &ctx);
-
-	/* For some reason we didn't end up at the start of vram */
-	WARN_ON(ret == 0 && bo->offset != 0);
-	if (!ret)
-		vmw_bo_pin_reserved(buf, true);
-
-	ttm_bo_unreserve(bo);
-err_unlock:
-	ttm_write_unlock(&dev_priv->reservation_sem);
-
-	return ret;
-}
-
-/**
- * vmw_dmabuf_unpin - Unpin the buffer given buffer, does not move the buffer.
- *
- * This function takes the reservation_sem in write mode.
- *
- * @dev_priv:  Driver private.
- * @buf:  DMA buffer to unpin.
- * @interruptible:  Use interruptible wait.
- *
- * Returns
- * -ERESTARTSYS if interrupted by a signal.
- */
-int vmw_dmabuf_unpin(struct vmw_private *dev_priv,
-		     struct vmw_dma_buffer *buf,
-		     bool interruptible)
-{
-	struct ttm_buffer_object *bo = &buf->base;
-	int ret;
-
-	ret = ttm_read_lock(&dev_priv->reservation_sem, interruptible);
-	if (unlikely(ret != 0))
-		return ret;
-
-	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
-	if (unlikely(ret != 0))
-		goto err;
-
-	vmw_bo_pin_reserved(buf, false);
-
-	ttm_bo_unreserve(bo);
-
-err:
-	ttm_read_unlock(&dev_priv->reservation_sem);
-	return ret;
-}
-
-/**
- * vmw_bo_get_guest_ptr - Get the guest ptr representing the current placement
- * of a buffer.
- *
- * @bo: Pointer to a struct ttm_buffer_object. Must be pinned or reserved.
- * @ptr: SVGAGuestPtr returning the result.
- */
-void vmw_bo_get_guest_ptr(const struct ttm_buffer_object *bo,
-			  SVGAGuestPtr *ptr)
-{
-	if (bo->mem.mem_type == TTM_PL_VRAM) {
-		ptr->gmrId = SVGA_GMR_FRAMEBUFFER;
-		ptr->offset = bo->offset;
-	} else {
-		ptr->gmrId = bo->mem.start;
-		ptr->offset = 0;
-	}
-}
-
-
-/**
- * vmw_bo_pin_reserved - Pin or unpin a buffer object without moving it.
- *
- * @vbo: The buffer object. Must be reserved.
- * @pin: Whether to pin or unpin.
- *
- */
-void vmw_bo_pin_reserved(struct vmw_dma_buffer *vbo, bool pin)
-{
-	struct ttm_operation_ctx ctx = { false, true };
-	struct ttm_place pl;
-	struct ttm_placement placement;
-	struct ttm_buffer_object *bo = &vbo->base;
-	uint32_t old_mem_type = bo->mem.mem_type;
-	int ret;
-
-	lockdep_assert_held(&bo->resv->lock.base);
-
-	if (pin) {
-		if (vbo->pin_count++ > 0)
-			return;
-	} else {
-		WARN_ON(vbo->pin_count <= 0);
-		if (--vbo->pin_count > 0)
-			return;
-	}
-
-	pl.fpfn = 0;
-	pl.lpfn = 0;
-	pl.flags = TTM_PL_FLAG_VRAM | VMW_PL_FLAG_GMR | VMW_PL_FLAG_MOB
-		| TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED;
-	if (pin)
-		pl.flags |= TTM_PL_FLAG_NO_EVICT;
-
-	memset(&placement, 0, sizeof(placement));
-	placement.num_placement = 1;
-	placement.placement = &pl;
-
-	ret = ttm_bo_validate(bo, &placement, &ctx);
-
-	BUG_ON(ret != 0 || bo->mem.mem_type != old_mem_type);
-}
-
-
-/*
- * vmw_dma_buffer_unmap - Tear down a cached buffer object map.
- *
- * @vbo: The buffer object whose map we are tearing down.
- *
- * This function tears down a cached map set up using
- * vmw_dma_buffer_map_and_cache().
- */
-void vmw_dma_buffer_unmap(struct vmw_dma_buffer *vbo)
-{
-	if (vbo->map.bo == NULL)
-		return;
-
-	ttm_bo_kunmap(&vbo->map);
-}
-
-
-/*
- * vmw_dma_buffer_map_and_cache - Map a buffer object and cache the map
- *
- * @vbo: The buffer object to map
- * Return: A kernel virtual address or NULL if mapping failed.
- *
- * This function maps a buffer object into the kernel address space, or
- * returns the virtual kernel address of an already existing map. The virtual
- * address remains valid as long as the buffer object is pinned or reserved.
- * The cached map is torn down on either
- * 1) Buffer object move
- * 2) Buffer object swapout
- * 3) Buffer object destruction
- *
- */
-void *vmw_dma_buffer_map_and_cache(struct vmw_dma_buffer *vbo)
-{
-	struct ttm_buffer_object *bo = &vbo->base;
-	bool not_used;
-	void *virtual;
-	int ret;
-
-	virtual = ttm_kmap_obj_virtual(&vbo->map, &not_used);
-	if (virtual)
-		return virtual;
-
-	ret = ttm_bo_kmap(bo, 0, bo->num_pages, &vbo->map);
-	if (ret)
-		DRM_ERROR("Buffer object map failed: %d.\n", ret);
-
-	return ttm_kmap_obj_virtual(&vbo->map, &not_used);
-}