diff options
Diffstat (limited to 'drivers/staging/cdv/drv/psb_gtt.h')
| -rw-r--r-- | drivers/staging/cdv/drv/psb_gtt.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/staging/cdv/drv/psb_gtt.h b/drivers/staging/cdv/drv/psb_gtt.h new file mode 100644 index 000000000000..69666762d5f1 --- /dev/null +++ b/drivers/staging/cdv/drv/psb_gtt.h @@ -0,0 +1,112 @@ +/************************************************************************** + * 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 |