android_kernel_cmhtcleo/drivers/gpu/msm/kgsl_sharedmem.h

117 lines
4.0 KiB
C

/* Copyright (c) 2002,2007-2011, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Code Aurora Forum, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __KGSL_SHAREDMEM_H
#define __KGSL_SHAREDMEM_H
#include <linux/dma-mapping.h>
struct kgsl_pagetable;
struct kgsl_device;
struct kgsl_process_private;
#define KGSL_CACHE_OP_INV 0x01
#define KGSL_CACHE_OP_FLUSH 0x02
#define KGSL_CACHE_OP_CLEAN 0x03
/** Set if the memdesc describes cached memory */
#define KGSL_MEMFLAGS_CACHED 0x00000001
struct kgsl_memdesc;
struct kgsl_memdesc_ops {
unsigned long (*physaddr)(struct kgsl_memdesc *, unsigned int);
void (*outer_cache)(struct kgsl_memdesc *, int);
int (*vmflags)(struct kgsl_memdesc *);
int (*vmfault)(struct kgsl_memdesc *, struct vm_area_struct *,
struct vm_fault *);
void (*free)(struct kgsl_memdesc *memdesc);
};
/* shared memory allocation */
struct kgsl_memdesc {
struct kgsl_pagetable *pagetable;
void *hostptr;
unsigned int gpuaddr;
unsigned int physaddr;
unsigned int size;
unsigned int priv;
struct kgsl_memdesc_ops *ops;
};
extern struct kgsl_memdesc_ops kgsl_vmalloc_ops;
extern struct kgsl_memdesc_ops kgsl_contig_ops;
extern struct kgsl_memdesc_ops kgsl_userptr_ops;
int kgsl_sharedmem_vmalloc(struct kgsl_memdesc *memdesc,
struct kgsl_pagetable *pagetable, size_t size);
int kgsl_sharedmem_vmalloc_user(struct kgsl_memdesc *memdesc,
struct kgsl_pagetable *pagetable,
size_t size, int flags);
int kgsl_sharedmem_alloc_coherent(struct kgsl_memdesc *memdesc, size_t size);
void kgsl_sharedmem_free(struct kgsl_memdesc *memdesc);
int kgsl_sharedmem_readl(const struct kgsl_memdesc *memdesc,
uint32_t *dst,
unsigned int offsetbytes);
int kgsl_sharedmem_writel(const struct kgsl_memdesc *memdesc,
unsigned int offsetbytes,
uint32_t src);
int kgsl_sharedmem_set(const struct kgsl_memdesc *memdesc,
unsigned int offsetbytes, unsigned int value,
unsigned int sizebytes);
void kgsl_cache_range_op(struct kgsl_memdesc *memdesc, int op);
void kgsl_process_init_sysfs(struct kgsl_process_private *private);
void kgsl_process_uninit_sysfs(struct kgsl_process_private *private);
int kgsl_sharedmem_init_sysfs(void);
void kgsl_sharedmem_uninit_sysfs(void);
static inline int
kgsl_allocate_user(struct kgsl_memdesc *memdesc,
struct kgsl_pagetable *pagetable,
size_t size, unsigned int flags)
{
return kgsl_sharedmem_vmalloc_user(memdesc, pagetable, size, flags);
}
static inline int
kgsl_allocate_contig(struct kgsl_memdesc *memdesc, size_t size)
{
return kgsl_sharedmem_alloc_coherent(memdesc, size);
}
#endif /* __KGSL_SHAREDMEM_H */