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/**************************************************************************
* Copyright (c) 2011, 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 "img_types.h"
struct psb_gtt {
struct drm_device *dev;
int initialized;
uint32_t gatt_start;
uint32_t mmu_gatt_start;
uint32_t ci_start;
uint32_t rar_start;
uint32_t gtt_start;
uint32_t gtt_phys_start;
unsigned gtt_pages;
unsigned gatt_pages;
uint32_t stolen_base;
void *vram_addr;
uint32_t pge_ctl;
u16 gmch_ctrl;
unsigned long stolen_size;
unsigned long vram_stolen_size;
unsigned long ci_stolen_size;
unsigned long rar_stolen_size;
uint32_t *gtt_map;
struct rw_semaphore sem;
};
struct psb_gtt_mm {
struct drm_mm base;
struct drm_open_hash hash;
uint32_t count;
spinlock_t lock;
};
struct psb_gtt_hash_entry {
struct drm_open_hash ht;
uint32_t count;
struct drm_hash_item item;
};
struct psb_gtt_mem_mapping {
struct drm_mm_node *node;
struct drm_hash_item item;
};
#if 0
/*Ioctl args*/
struct psb_gtt_mapping_arg {
IMG_HANDLE hKernelMemInfo;
};
#endif
/*Exported functions*/
extern int psb_gtt_init(struct psb_gtt *pg, int resume);
extern int psb_gtt_insert_pages(struct psb_gtt *pg, struct page **pages,
unsigned offset_pages, unsigned num_pages,
unsigned desired_tile_stride,
unsigned hw_tile_stride, int type);
extern int psb_gtt_remove_pages(struct psb_gtt *pg, unsigned offset_pages,
unsigned num_pages,
unsigned desired_tile_stride,
unsigned hw_tile_stride,
int rc_prot);
extern struct psb_gtt *psb_gtt_alloc(struct drm_device *dev);
extern void psb_gtt_takedown(struct psb_gtt *pg, int free);
extern int psb_gtt_map_meminfo(struct drm_device *dev,
IMG_HANDLE hKernelMemInfo,
uint32_t *offset);
extern int psb_gtt_unmap_meminfo(struct drm_device *dev,
IMG_HANDLE hKernelMemInfo);
extern int psb_gtt_map_meminfo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int psb_gtt_unmap_meminfo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int psb_gtt_mm_init(struct psb_gtt *pg);
extern void psb_gtt_mm_takedown(void);
extern int psb_gtt_map_pvr_memory(struct drm_device *dev,
unsigned int hHandle,
unsigned int ui32TaskId,
IMG_CPU_PHYADDR *pPages,
unsigned int ui32PagesNum,
unsigned int *ui32Offset);
extern int psb_gtt_unmap_pvr_memory(struct drm_device *dev,
unsigned int hHandle,
unsigned int ui32TaskId);
#endif
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