1 files changed, 0 insertions, 450 deletions

diff --git a/drivers/staging/gma500/psb_buffer.c b/drivers/staging/gma500/psb_buffer.c
deleted file mode 100644
index 3077f6a7b7dc..000000000000
--- a/drivers/staging/gma500/psb_buffer.c
+++ /dev/null
@@ -1,450 +0,0 @@
-/**************************************************************************
- * Copyright (c) 2007, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thomas-at-tungstengraphics.com>
- */
-#include "ttm/ttm_placement.h"
-#include "ttm/ttm_execbuf_util.h"
-#include "psb_ttm_fence_api.h"
-#include <drm/drmP.h>
-#include "psb_drv.h"
-
-#define DRM_MEM_TTM       26
-
-struct drm_psb_ttm_backend {
-	struct ttm_backend base;
-	struct page **pages;
-	unsigned int desired_tile_stride;
-	unsigned int hw_tile_stride;
-	int mem_type;
-	unsigned long offset;
-	unsigned long num_pages;
-};
-
-/*
- * MSVDX/TOPAZ GPU virtual space looks like this
- * (We currently use only one MMU context).
- * PSB_MEM_MMU_START: from 0x00000000~0xe000000, for generic buffers
- * TTM_PL_CI: from 0xe0000000+half GTT space, for camear/video buffer sharing
- * TTM_PL_RAR: from TTM_PL_CI+CI size, for RAR/video buffer sharing
- * TTM_PL_TT: from TTM_PL_RAR+RAR size, for buffers need to mapping into GTT
- */
-static int psb_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
-			     struct ttm_mem_type_manager *man)
-{
-
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct psb_gtt *pg = dev_priv->pg;
-
-	switch (type) {
-	case TTM_PL_SYSTEM:
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_CACHED;
-		break;
-	case DRM_PSB_MEM_MMU:
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-		    TTM_MEMTYPE_FLAG_CMA;
-		man->gpu_offset = PSB_MEM_MMU_START;
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_WC;
-		break;
-	case TTM_PL_CI:
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-			TTM_MEMTYPE_FLAG_FIXED;
-		man->gpu_offset = pg->mmu_gatt_start + (pg->ci_start);
-		man->available_caching = TTM_PL_FLAG_UNCACHED;
-		man->default_caching = TTM_PL_FLAG_UNCACHED;
-		break;
-	case TTM_PL_RAR:	/* Unmappable RAR memory */
-		man->func = &ttm_bo_manager_func;
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-			TTM_MEMTYPE_FLAG_FIXED;
-		man->available_caching = TTM_PL_FLAG_UNCACHED;
-		man->default_caching = TTM_PL_FLAG_UNCACHED;
-		man->gpu_offset = pg->mmu_gatt_start + (pg->rar_start);
-		break;
-	case TTM_PL_TT:	/* Mappable GATT memory */
-		man->func = &ttm_bo_manager_func;
-#ifdef PSB_WORKING_HOST_MMU_ACCESS
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
-#else
-		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-		    TTM_MEMTYPE_FLAG_CMA;
-#endif
-		man->available_caching = TTM_PL_FLAG_CACHED |
-		    TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-		man->default_caching = TTM_PL_FLAG_WC;
-		man->gpu_offset = pg->mmu_gatt_start +
-				(pg->rar_start + dev_priv->rar_region_size);
-		break;
-	default:
-		DRM_ERROR("Unsupported memory type %u\n", (unsigned) type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-
-static void psb_evict_mask(struct ttm_buffer_object *bo,
-					struct ttm_placement *placement)
-{
-	static uint32_t cur_placement;
-
-	cur_placement = bo->mem.placement & ~TTM_PL_MASK_MEM;
-	cur_placement |= TTM_PL_FLAG_SYSTEM;
-
-	placement->fpfn = 0;
-	placement->lpfn = 0;
-	placement->num_placement = 1;
-	placement->placement = &cur_placement;
-	placement->num_busy_placement = 0;
-	placement->busy_placement = NULL;
-
-	/* all buffers evicted to system memory */
-	/* return cur_placement | TTM_PL_FLAG_SYSTEM; */
-}
-
-static int psb_invalidate_caches(struct ttm_bo_device *bdev,
-				 uint32_t placement)
-{
-	return 0;
-}
-
-static int psb_move_blit(struct ttm_buffer_object *bo,
-			 bool evict, bool no_wait,
-			 struct ttm_mem_reg *new_mem)
-{
-	BUG();
-	return 0;
-}
-
-/*
- * Flip destination ttm into GATT,
- * then blit and subsequently move out again.
- */
-
-static int psb_move_flip(struct ttm_buffer_object *bo,
-			 bool evict, bool interruptible, bool no_wait,
-			 struct ttm_mem_reg *new_mem)
-{
-	/*struct ttm_bo_device *bdev = bo->bdev;*/
-	struct ttm_mem_reg tmp_mem;
-	int ret;
-	struct ttm_placement placement;
-	uint32_t flags = TTM_PL_FLAG_TT;
-
-	tmp_mem = *new_mem;
-	tmp_mem.mm_node = NULL;
-
-	placement.fpfn = 0;
-	placement.lpfn = 0;
-	placement.num_placement = 1;
-	placement.placement = &flags;
-	placement.num_busy_placement = 0; /* FIXME */
-	placement.busy_placement = NULL;
-
-	ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, interruptible,
-							false, no_wait);
-	if (ret)
-		return ret;
-	ret = ttm_tt_bind(bo->ttm, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-	ret = psb_move_blit(bo, true, no_wait, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-
-	ret = ttm_bo_move_ttm(bo, evict, false, no_wait, new_mem);
-out_cleanup:
-	if (tmp_mem.mm_node) {
-		drm_mm_put_block(tmp_mem.mm_node);
-		tmp_mem.mm_node = NULL;
-	}
-	return ret;
-}
-
-static int psb_move(struct ttm_buffer_object *bo,
-		    bool evict, bool interruptible, bool no_wait_reserve,
-		    bool no_wait, struct ttm_mem_reg *new_mem)
-{
-	struct ttm_mem_reg *old_mem = &bo->mem;
-
-	if ((old_mem->mem_type == TTM_PL_RAR) ||
-	    (new_mem->mem_type == TTM_PL_RAR)) {
-		if (old_mem->mm_node) {
-			spin_lock(&bo->glob->lru_lock);
-			drm_mm_put_block(old_mem->mm_node);
-			spin_unlock(&bo->glob->lru_lock);
-		}
-		old_mem->mm_node = NULL;
-		*old_mem = *new_mem;
-	} else if (old_mem->mem_type == TTM_PL_SYSTEM) {
-		return ttm_bo_move_memcpy(bo, evict, false, no_wait, new_mem);
-	} else if (new_mem->mem_type == TTM_PL_SYSTEM) {
-		int ret = psb_move_flip(bo, evict, interruptible,
-					no_wait, new_mem);
-		if (unlikely(ret != 0)) {
-			if (ret == -ERESTART)
-				return ret;
-			else
-				return ttm_bo_move_memcpy(bo, evict, false,
-						no_wait, new_mem);
-		}
-	} else {
-		if (psb_move_blit(bo, evict, no_wait, new_mem))
-			return ttm_bo_move_memcpy(bo, evict, false, no_wait,
-						  new_mem);
-	}
-	return 0;
-}
-
-static int drm_psb_tbe_populate(struct ttm_backend *backend,
-				unsigned long num_pages,
-				struct page **pages,
-				struct page *dummy_read_page,
-				dma_addr_t *dma_addrs)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	psb_be->pages = pages;
-	return 0;
-}
-
-static int drm_psb_tbe_unbind(struct ttm_backend *backend)
-{
-	struct ttm_bo_device *bdev = backend->bdev;
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-	struct psb_mmu_pd *pd = psb_mmu_get_default_pd(dev_priv->mmu);
-	/* struct ttm_mem_type_manager *man = &bdev->man[psb_be->mem_type]; */
-
-	if (psb_be->mem_type == TTM_PL_TT) {
-		uint32_t gatt_p_offset =
-			(psb_be->offset - dev_priv->pg->mmu_gatt_start)
-								>> PAGE_SHIFT;
-
-		(void) psb_gtt_remove_pages(dev_priv->pg, gatt_p_offset,
-					    psb_be->num_pages,
-					    psb_be->desired_tile_stride,
-					    psb_be->hw_tile_stride, 0);
-	}
-
-	psb_mmu_remove_pages(pd, psb_be->offset,
-			     psb_be->num_pages,
-			     psb_be->desired_tile_stride,
-			     psb_be->hw_tile_stride);
-
-	return 0;
-}
-
-static int drm_psb_tbe_bind(struct ttm_backend *backend,
-			    struct ttm_mem_reg *bo_mem)
-{
-	struct ttm_bo_device *bdev = backend->bdev;
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-	struct psb_mmu_pd *pd = psb_mmu_get_default_pd(dev_priv->mmu);
-	struct ttm_mem_type_manager *man = &bdev->man[bo_mem->mem_type];
-	struct drm_mm_node *mm_node = bo_mem->mm_node;
-	int type;
-	int ret = 0;
-
-	psb_be->mem_type = bo_mem->mem_type;
-	psb_be->num_pages = bo_mem->num_pages;
-	psb_be->desired_tile_stride = 0;
-	psb_be->hw_tile_stride = 0;
-	psb_be->offset = (mm_node->start << PAGE_SHIFT) +
-	    man->gpu_offset;
-
-	type =
-	    (bo_mem->
-	     placement & TTM_PL_FLAG_CACHED) ? PSB_MMU_CACHED_MEMORY : 0;
-
-	if (psb_be->mem_type == TTM_PL_TT) {
-		uint32_t gatt_p_offset =
-				(psb_be->offset - dev_priv->pg->mmu_gatt_start)
-								>> PAGE_SHIFT;
-
-		ret = psb_gtt_insert_pages(dev_priv->pg, psb_be->pages,
-					   gatt_p_offset,
-					   psb_be->num_pages,
-					   psb_be->desired_tile_stride,
-					   psb_be->hw_tile_stride, type);
-	}
-
-	ret = psb_mmu_insert_pages(pd, psb_be->pages,
-				   psb_be->offset, psb_be->num_pages,
-				   psb_be->desired_tile_stride,
-				   psb_be->hw_tile_stride, type);
-	if (ret)
-		goto out_err;
-
-	return 0;
-out_err:
-	drm_psb_tbe_unbind(backend);
-	return ret;
-
-}
-
-static void drm_psb_tbe_clear(struct ttm_backend *backend)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	psb_be->pages = NULL;
-	return;
-}
-
-static void drm_psb_tbe_destroy(struct ttm_backend *backend)
-{
-	struct drm_psb_ttm_backend *psb_be =
-	    container_of(backend, struct drm_psb_ttm_backend, base);
-
-	if (backend)
-		kfree(psb_be);
-}
-
-static struct ttm_backend_func psb_ttm_backend = {
-	.populate = drm_psb_tbe_populate,
-	.clear = drm_psb_tbe_clear,
-	.bind = drm_psb_tbe_bind,
-	.unbind = drm_psb_tbe_unbind,
-	.destroy = drm_psb_tbe_destroy,
-};
-
-static struct ttm_backend *drm_psb_tbe_init(struct ttm_bo_device *bdev)
-{
-	struct drm_psb_ttm_backend *psb_be;
-
-	psb_be = kzalloc(sizeof(*psb_be), GFP_KERNEL);
-	if (!psb_be)
-		return NULL;
-	psb_be->pages = NULL;
-	psb_be->base.func = &psb_ttm_backend;
-	psb_be->base.bdev = bdev;
-	return &psb_be->base;
-}
-
-static int psb_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
-						struct ttm_mem_reg *mem)
-{
-	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
-	struct drm_psb_private *dev_priv =
-	    container_of(bdev, struct drm_psb_private, bdev);
-	struct psb_gtt *pg = dev_priv->pg;
-	struct drm_mm_node *mm_node = mem->mm_node;
-
-	mem->bus.addr = NULL;
-	mem->bus.offset = 0;
-	mem->bus.size = mem->num_pages << PAGE_SHIFT;
-	mem->bus.base = 0;
-	mem->bus.is_iomem = false;
-	if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
-		return -EINVAL;
-	switch (mem->mem_type) {
-	case TTM_PL_SYSTEM:
-		/* system memory */
-		return 0;
-	case TTM_PL_TT:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = pg->gatt_start;
-		mem->bus.is_iomem = false;
-		/* Don't know whether it is IO_MEM, this flag
-						used in vm_fault handle */
-		break;
-	case DRM_PSB_MEM_MMU:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = 0x00000000;
-		break;
-	case TTM_PL_CI:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = dev_priv->ci_region_start;;
-		mem->bus.is_iomem = true;
-		break;
-	case TTM_PL_RAR:
-		mem->bus.offset = mm_node->start << PAGE_SHIFT;
-		mem->bus.base = dev_priv->rar_region_start;;
-		mem->bus.is_iomem = true;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void psb_ttm_io_mem_free(struct ttm_bo_device *bdev,
-						struct ttm_mem_reg *mem)
-{
-}
-
-/*
- * Use this memory type priority if no eviction is needed.
- */
-/*
-static uint32_t psb_mem_prios[] = {
-	TTM_PL_CI,
-	TTM_PL_RAR,
-	TTM_PL_TT,
-	DRM_PSB_MEM_MMU,
-	TTM_PL_SYSTEM
-};
-*/
-/*
- * Use this memory type priority if need to evict.
- */
-/*
-static uint32_t psb_busy_prios[] = {
-	TTM_PL_TT,
-	TTM_PL_CI,
-	TTM_PL_RAR,
-	DRM_PSB_MEM_MMU,
-	TTM_PL_SYSTEM
-};
-*/
-struct ttm_bo_driver psb_ttm_bo_driver = {
-/*
-	.mem_type_prio = psb_mem_prios,
-	.mem_busy_prio = psb_busy_prios,
-	.num_mem_type_prio = ARRAY_SIZE(psb_mem_prios),
-	.num_mem_busy_prio = ARRAY_SIZE(psb_busy_prios),
-*/
-	.create_ttm_backend_entry = &drm_psb_tbe_init,
-	.invalidate_caches = &psb_invalidate_caches,
-	.init_mem_type = &psb_init_mem_type,
-	.evict_flags = &psb_evict_mask,
-	.move = &psb_move,
-	.verify_access = &psb_verify_access,
-	.sync_obj_signaled = &ttm_fence_sync_obj_signaled,
-	.sync_obj_wait = &ttm_fence_sync_obj_wait,
-	.sync_obj_flush = &ttm_fence_sync_obj_flush,
-	.sync_obj_unref = &ttm_fence_sync_obj_unref,
-	.sync_obj_ref = &ttm_fence_sync_obj_ref,
-	.io_mem_reserve = &psb_ttm_io_mem_reserve,
-	.io_mem_free = &psb_ttm_io_mem_free
-};