1 files changed, 0 insertions, 628 deletions

diff --git a/drivers/staging/gma500/psb_ttm_placement_user.c b/drivers/staging/gma500/psb_ttm_placement_user.c
deleted file mode 100644
index 272b397982e..00000000000
--- a/drivers/staging/gma500/psb_ttm_placement_user.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/**************************************************************************
- *
- * Copyright (c) 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
- * All Rights Reserved.
- *
- * 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-dot-com>
- */
-
-#include "psb_ttm_placement_user.h"
-#include "ttm/ttm_bo_driver.h"
-#include "ttm/ttm_object.h"
-#include "psb_ttm_userobj_api.h"
-#include "ttm/ttm_lock.h"
-#include <linux/slab.h>
-#include <linux/sched.h>
-
-struct ttm_bo_user_object {
-	struct ttm_base_object base;
-	struct ttm_buffer_object bo;
-};
-
-static size_t pl_bo_size;
-
-static uint32_t psb_busy_prios[] = {
-	TTM_PL_TT,
-	TTM_PL_PRIV0, /* CI */
-	TTM_PL_PRIV2, /* RAR */
-	TTM_PL_PRIV1, /* DRM_PSB_MEM_MMU */
-	TTM_PL_SYSTEM
-};
-
-static const struct ttm_placement default_placement = {
-				0, 0, 0, NULL, 5, psb_busy_prios
-};
-
-static size_t ttm_pl_size(struct ttm_bo_device *bdev, unsigned long num_pages)
-{
-	size_t page_array_size =
-	    (num_pages * sizeof(void *) + PAGE_SIZE - 1) & PAGE_MASK;
-
-	if (unlikely(pl_bo_size == 0)) {
-		pl_bo_size = bdev->glob->ttm_bo_extra_size +
-		    ttm_round_pot(sizeof(struct ttm_bo_user_object));
-	}
-
-	return bdev->glob->ttm_bo_size + 2 * page_array_size;
-}
-
-static struct ttm_bo_user_object *ttm_bo_user_lookup(struct ttm_object_file
-						     *tfile, uint32_t handle)
-{
-	struct ttm_base_object *base;
-
-	base = ttm_base_object_lookup(tfile, handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	if (unlikely(base->object_type != ttm_buffer_type)) {
-		ttm_base_object_unref(&base);
-		printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n",
-		       (unsigned long)handle);
-		return NULL;
-	}
-
-	return container_of(base, struct ttm_bo_user_object, base);
-}
-
-struct ttm_buffer_object *ttm_buffer_object_lookup(struct ttm_object_file
-						   *tfile, uint32_t handle)
-{
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_base_object *base;
-
-	user_bo = ttm_bo_user_lookup(tfile, handle);
-	if (unlikely(user_bo == NULL))
-		return NULL;
-
-	(void)ttm_bo_reference(&user_bo->bo);
-	base = &user_bo->base;
-	ttm_base_object_unref(&base);
-	return &user_bo->bo;
-}
-
-static void ttm_bo_user_destroy(struct ttm_buffer_object *bo)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(bo, struct ttm_bo_user_object, bo);
-
-	ttm_mem_global_free(bo->glob->mem_glob, bo->acc_size);
-	kfree(user_bo);
-}
-
-static void ttm_bo_user_release(struct ttm_base_object **p_base)
-{
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_base_object *base = *p_base;
-	struct ttm_buffer_object *bo;
-
-	*p_base = NULL;
-
-	if (unlikely(base == NULL))
-		return;
-
-	user_bo = container_of(base, struct ttm_bo_user_object, base);
-	bo = &user_bo->bo;
-	ttm_bo_unref(&bo);
-}
-
-static void ttm_bo_user_ref_release(struct ttm_base_object *base,
-				    enum ttm_ref_type ref_type)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(base, struct ttm_bo_user_object, base);
-	struct ttm_buffer_object *bo = &user_bo->bo;
-
-	switch (ref_type) {
-	case TTM_REF_SYNCCPU_WRITE:
-		ttm_bo_synccpu_write_release(bo);
-		break;
-	default:
-		BUG();
-	}
-}
-
-static void ttm_pl_fill_rep(struct ttm_buffer_object *bo,
-			    struct ttm_pl_rep *rep)
-{
-	struct ttm_bo_user_object *user_bo =
-	    container_of(bo, struct ttm_bo_user_object, bo);
-
-	rep->gpu_offset = bo->offset;
-	rep->bo_size = bo->num_pages << PAGE_SHIFT;
-	rep->map_handle = bo->addr_space_offset;
-	rep->placement = bo->mem.placement;
-	rep->handle = user_bo->base.hash.key;
-	rep->sync_object_arg = (uint32_t) (unsigned long)bo->sync_obj_arg;
-}
-
-/* FIXME Copy from upstream TTM */
-static inline size_t ttm_bo_size(struct ttm_bo_global *glob,
-				 unsigned long num_pages)
-{
-	size_t page_array_size = (num_pages * sizeof(void *) + PAGE_SIZE - 1) &
-	    PAGE_MASK;
-
-	return glob->ttm_bo_size + 2 * page_array_size;
-}
-
-/* FIXME Copy from upstream TTM "ttm_bo_create", upstream TTM does not
-   export this, so copy it here */
-static int ttm_bo_create_private(struct ttm_bo_device *bdev,
-			unsigned long size,
-			enum ttm_bo_type type,
-			struct ttm_placement *placement,
-			uint32_t page_alignment,
-			unsigned long buffer_start,
-			bool interruptible,
-			struct file *persistant_swap_storage,
-			struct ttm_buffer_object **p_bo)
-{
-	struct ttm_buffer_object *bo;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	int ret;
-
-	size_t acc_size =
-	    ttm_bo_size(bdev->glob, (size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	bo = kzalloc(sizeof(*bo), GFP_KERNEL);
-
-	if (unlikely(bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-
-	ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
-				buffer_start, interruptible,
-				persistant_swap_storage, acc_size, NULL);
-	if (likely(ret == 0))
-		*p_bo = bo;
-
-	return ret;
-}
-
-int psb_ttm_bo_check_placement(struct ttm_buffer_object *bo,
-				struct ttm_placement *placement)
-{
-	int i;
-
-	for (i = 0; i < placement->num_placement; i++) {
-		if (!capable(CAP_SYS_ADMIN)) {
-			if (placement->placement[i] & TTM_PL_FLAG_NO_EVICT) {
-				printk(KERN_ERR TTM_PFX "Need to be root to "
-					"modify NO_EVICT status.\n");
-				return -EINVAL;
-			}
-		}
-	}
-	for (i = 0; i < placement->num_busy_placement; i++) {
-		if (!capable(CAP_SYS_ADMIN)) {
-			if (placement->busy_placement[i]
-						& TTM_PL_FLAG_NO_EVICT) {
-				printk(KERN_ERR TTM_PFX "Need to be root to modify NO_EVICT status.\n");
-				return -EINVAL;
-			}
-		}
-	}
-	return 0;
-}
-
-int ttm_buffer_object_create(struct ttm_bo_device *bdev,
-			unsigned long size,
-			enum ttm_bo_type type,
-			uint32_t flags,
-			uint32_t page_alignment,
-			unsigned long buffer_start,
-			bool interruptible,
-			struct file *persistant_swap_storage,
-			struct ttm_buffer_object **p_bo)
-{
-	struct ttm_placement placement = default_placement;
-	int ret;
-
-	if ((flags & TTM_PL_MASK_CACHING) == 0)
-		flags |= TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	ret = ttm_bo_create_private(bdev,
-			size,
-			type,
-			&placement,
-			page_alignment,
-			buffer_start,
-			interruptible,
-			persistant_swap_storage,
-			p_bo);
-
-	return ret;
-}
-
-
-int ttm_pl_create_ioctl(struct ttm_object_file *tfile,
-			struct ttm_bo_device *bdev,
-			struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_create_arg *arg = data;
-	struct ttm_pl_create_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_buffer_object *tmp;
-	struct ttm_bo_user_object *user_bo;
-	uint32_t flags;
-	int ret = 0;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	struct ttm_placement placement = default_placement;
-	size_t acc_size =
-	    ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	flags = req->placement;
-	user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
-	if (unlikely(user_bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-
-	bo = &user_bo->bo;
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		kfree(user_bo);
-		return ret;
-	}
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	if ((flags & TTM_PL_MASK_CACHING) == 0)
-		flags |=  TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
-
-	ret = ttm_bo_init(bdev, bo, req->size,
-				     ttm_bo_type_device, &placement,
-				     req->page_alignment, 0, true,
-				     NULL, acc_size, &ttm_bo_user_destroy);
-	ttm_read_unlock(lock);
-
-	/*
-	 * Note that the ttm_buffer_object_init function
-	 * would've called the destroy function on failure!!
-	 */
-
-	if (unlikely(ret != 0))
-		goto out;
-
-	tmp = ttm_bo_reference(bo);
-	ret = ttm_base_object_init(tfile, &user_bo->base,
-				   flags & TTM_PL_FLAG_SHARED,
-				   ttm_buffer_type,
-				   &ttm_bo_user_release,
-				   &ttm_bo_user_ref_release);
-	if (unlikely(ret != 0))
-		goto out_err;
-
-	ttm_pl_fill_rep(bo, rep);
-	ttm_bo_unref(&bo);
-out:
-	return 0;
-out_err:
-	ttm_bo_unref(&tmp);
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_ub_create_ioctl(struct ttm_object_file *tfile,
-			   struct ttm_bo_device *bdev,
-			   struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_create_ub_arg *arg = data;
-	struct ttm_pl_create_ub_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_buffer_object *tmp;
-	struct ttm_bo_user_object *user_bo;
-	uint32_t flags;
-	int ret = 0;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
-	struct ttm_placement placement = default_placement;
-	size_t acc_size =
-	    ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	flags = req->placement;
-	user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
-	if (unlikely(user_bo == NULL)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		return -ENOMEM;
-	}
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0)) {
-		ttm_mem_global_free(mem_glob, acc_size);
-		kfree(user_bo);
-		return ret;
-	}
-	bo = &user_bo->bo;
-
-	placement.num_placement = 1;
-	placement.placement = &flags;
-
-	ret = ttm_bo_init(bdev,
-					bo,
-					req->size,
-					ttm_bo_type_user,
-					&placement,
-					req->page_alignment,
-					req->user_address,
-					true,
-					NULL,
-					acc_size,
-					&ttm_bo_user_destroy);
-
-	/*
-	 * Note that the ttm_buffer_object_init function
-	 * would've called the destroy function on failure!!
-	 */
-	ttm_read_unlock(lock);
-	if (unlikely(ret != 0))
-		goto out;
-
-	tmp = ttm_bo_reference(bo);
-	ret = ttm_base_object_init(tfile, &user_bo->base,
-				   flags & TTM_PL_FLAG_SHARED,
-				   ttm_buffer_type,
-				   &ttm_bo_user_release,
-				   &ttm_bo_user_ref_release);
-	if (unlikely(ret != 0))
-		goto out_err;
-
-	ttm_pl_fill_rep(bo, rep);
-	ttm_bo_unref(&bo);
-out:
-	return 0;
-out_err:
-	ttm_bo_unref(&tmp);
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_reference_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	union ttm_pl_reference_arg *arg = data;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_buffer_object *bo;
-	struct ttm_base_object *base;
-	int ret;
-
-	user_bo = ttm_bo_user_lookup(tfile, arg->req.handle);
-	if (unlikely(user_bo == NULL)) {
-		printk(KERN_ERR "Could not reference buffer object.\n");
-		return -EINVAL;
-	}
-
-	bo = &user_bo->bo;
-	ret = ttm_ref_object_add(tfile, &user_bo->base, TTM_REF_USAGE, NULL);
-	if (unlikely(ret != 0)) {
-		printk(KERN_ERR
-		       "Could not add a reference to buffer object.\n");
-		goto out;
-	}
-
-	ttm_pl_fill_rep(bo, rep);
-
-out:
-	base = &user_bo->base;
-	ttm_base_object_unref(&base);
-	return ret;
-}
-
-int ttm_pl_unref_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_reference_req *arg = data;
-
-	return ttm_ref_object_base_unref(tfile, arg->handle, TTM_REF_USAGE);
-}
-
-int ttm_pl_synccpu_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_synccpu_arg *arg = data;
-	struct ttm_bo_user_object *user_bo;
-	struct ttm_buffer_object *bo;
-	struct ttm_base_object *base;
-	bool existed;
-	int ret;
-
-	switch (arg->op) {
-	case TTM_PL_SYNCCPU_OP_GRAB:
-		user_bo = ttm_bo_user_lookup(tfile, arg->handle);
-		if (unlikely(user_bo == NULL)) {
-			printk(KERN_ERR
-			       "Could not find buffer object for synccpu.\n");
-			return -EINVAL;
-		}
-		bo = &user_bo->bo;
-		base = &user_bo->base;
-		ret = ttm_bo_synccpu_write_grab(bo,
-						arg->access_mode &
-						TTM_PL_SYNCCPU_MODE_NO_BLOCK);
-		if (unlikely(ret != 0)) {
-			ttm_base_object_unref(&base);
-			goto out;
-		}
-		ret = ttm_ref_object_add(tfile, &user_bo->base,
-					 TTM_REF_SYNCCPU_WRITE, &existed);
-		if (existed || ret != 0)
-			ttm_bo_synccpu_write_release(bo);
-		ttm_base_object_unref(&base);
-		break;
-	case TTM_PL_SYNCCPU_OP_RELEASE:
-		ret = ttm_ref_object_base_unref(tfile, arg->handle,
-						TTM_REF_SYNCCPU_WRITE);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-out:
-	return ret;
-}
-
-int ttm_pl_setstatus_ioctl(struct ttm_object_file *tfile,
-			   struct ttm_lock *lock, void *data)
-{
-	union ttm_pl_setstatus_arg *arg = data;
-	struct ttm_pl_setstatus_req *req = &arg->req;
-	struct ttm_pl_rep *rep = &arg->rep;
-	struct ttm_buffer_object *bo;
-	struct ttm_bo_device *bdev;
-	struct ttm_placement placement = default_placement;
-	uint32_t flags[2];
-	int ret;
-
-	bo = ttm_buffer_object_lookup(tfile, req->handle);
-	if (unlikely(bo == NULL)) {
-		printk(KERN_ERR
-		       "Could not find buffer object for setstatus.\n");
-		return -EINVAL;
-	}
-
-	bdev = bo->bdev;
-
-	ret = ttm_read_lock(lock, true);
-	if (unlikely(ret != 0))
-		goto out_err0;
-
-	ret = ttm_bo_reserve(bo, true, false, false, 0);
-	if (unlikely(ret != 0))
-		goto out_err1;
-
-	ret = ttm_bo_wait_cpu(bo, false);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	flags[0] = req->set_placement;
-	flags[1] = req->clr_placement;
-
-	placement.num_placement = 2;
-	placement.placement = flags;
-
-	/* Review internal locking ? FIXMEAC */
-	ret = psb_ttm_bo_check_placement(bo, &placement);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	placement.num_placement = 1;
-	flags[0] = (req->set_placement | bo->mem.placement)
-						& ~req->clr_placement;
-
-	ret = ttm_bo_validate(bo, &placement, true, false, false);
-	if (unlikely(ret != 0))
-		goto out_err2;
-
-	ttm_pl_fill_rep(bo, rep);
-out_err2:
-	ttm_bo_unreserve(bo);
-out_err1:
-	ttm_read_unlock(lock);
-out_err0:
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-static int psb_ttm_bo_block_reservation(struct ttm_buffer_object *bo,
-				bool interruptible, bool no_wait)
-{
-	int ret;
-
-	while (unlikely(atomic_cmpxchg(&bo->reserved, 0, 1) != 0)) {
-		if (no_wait)
-			return -EBUSY;
-		else if (interruptible) {
-			ret = wait_event_interruptible(bo->event_queue,
-					atomic_read(&bo->reserved) == 0);
-			if (unlikely(ret != 0))
-				return -ERESTART;
-		} else {
-			wait_event(bo->event_queue,
-				atomic_read(&bo->reserved) == 0);
-		}
-	}
-	return 0;
-}
-
-static void psb_ttm_bo_unblock_reservation(struct ttm_buffer_object *bo)
-{
-	atomic_set(&bo->reserved, 0);
-	wake_up_all(&bo->event_queue);
-}
-
-int ttm_pl_waitidle_ioctl(struct ttm_object_file *tfile, void *data)
-{
-	struct ttm_pl_waitidle_arg *arg = data;
-	struct ttm_buffer_object *bo;
-	int ret;
-
-	bo = ttm_buffer_object_lookup(tfile, arg->handle);
-	if (unlikely(bo == NULL)) {
-		printk(KERN_ERR "Could not find buffer object for waitidle.\n");
-		return -EINVAL;
-	}
-
-	ret =
-	    psb_ttm_bo_block_reservation(bo, true,
-				     arg->mode & TTM_PL_WAITIDLE_MODE_NO_BLOCK);
-	if (unlikely(ret != 0))
-		goto out;
-	ret = ttm_bo_wait(bo,
-			  arg->mode & TTM_PL_WAITIDLE_MODE_LAZY,
-			  true, arg->mode & TTM_PL_WAITIDLE_MODE_NO_BLOCK);
-	psb_ttm_bo_unblock_reservation(bo);
-out:
-	ttm_bo_unref(&bo);
-	return ret;
-}
-
-int ttm_pl_verify_access(struct ttm_buffer_object *bo,
-			 struct ttm_object_file *tfile)
-{
-	struct ttm_bo_user_object *ubo;
-
-	/*
-	 * Check bo subclass.
-	 */
-
-	if (unlikely(bo->destroy != &ttm_bo_user_destroy))
-		return -EPERM;
-
-	ubo = container_of(bo, struct ttm_bo_user_object, bo);
-	if (likely(ubo->base.shareable || ubo->base.tfile == tfile))
-		return 0;
-
-	return -EPERM;
-}