67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
/**************************************************************************
|
|
* Copyright (c) 2007-2008, Intel Corporation.
|
|
* 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.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#ifndef _PSB_GTT_H_
|
|
#define _PSB_GTT_H_
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_gem.h>
|
|
|
|
/* This wants cleaning up with respect to the psb_dev and un-needed stuff */
|
|
struct psb_gtt {
|
|
uint32_t gatt_start;
|
|
uint32_t mmu_gatt_start;
|
|
uint32_t gtt_start;
|
|
uint32_t gtt_phys_start;
|
|
unsigned gtt_pages;
|
|
unsigned gatt_pages;
|
|
unsigned long stolen_size;
|
|
unsigned long vram_stolen_size;
|
|
struct rw_semaphore sem;
|
|
};
|
|
|
|
/* Exported functions */
|
|
extern int psb_gtt_init(struct drm_device *dev, int resume);
|
|
extern void psb_gtt_takedown(struct drm_device *dev);
|
|
|
|
/* Each gtt_range describes an allocation in the GTT area */
|
|
struct gtt_range {
|
|
struct resource resource; /* Resource for our allocation */
|
|
u32 offset; /* GTT offset of our object */
|
|
struct drm_gem_object gem; /* GEM high level stuff */
|
|
int in_gart; /* Currently in the GART (ref ct) */
|
|
bool stolen; /* Backed from stolen RAM */
|
|
bool mmapping; /* Is mmappable */
|
|
struct page **pages; /* Backing pages if present */
|
|
int npage; /* Number of backing pages */
|
|
int roll; /* Roll applied to the GTT entries */
|
|
};
|
|
|
|
extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
|
|
const char *name, int backed,
|
|
u32 align);
|
|
extern void psb_gtt_kref_put(struct gtt_range *gt);
|
|
extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt);
|
|
extern int psb_gtt_pin(struct gtt_range *gt);
|
|
extern void psb_gtt_unpin(struct gtt_range *gt);
|
|
extern void psb_gtt_roll(struct drm_device *dev,
|
|
struct gtt_range *gt, int roll);
|
|
extern int psb_gtt_restore(struct drm_device *dev);
|
|
#endif
|