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