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/*
*
* (C) COPYRIGHT ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
/**
* @file mali_kbase_mem_linux.h
* Base kernel memory APIs, Linux implementation.
*/
#ifndef _KBASE_MEM_LINUX_H_
#define _KBASE_MEM_LINUX_H_
/* This define is used by the gator kernel module compile to select which DDK
* API calling convention to use. If not defined (legacy DDK) gator assumes
* version 1. The version to DDK release mapping is:
* Version 1 API: DDK versions r1px, r2px
* Version 2 API: DDK versions r3px and newer
**/
#define MALI_DDK_GATOR_API_VERSION 2
/** A HWC dump mapping */
typedef struct kbase_hwc_dma_mapping {
void *cpu_va;
dma_addr_t dma_pa;
size_t size;
} kbase_hwc_dma_mapping;
struct kbase_va_region * kbase_mem_alloc(kbase_context * kctx, u64 va_pages, u64 commit_pages, u64 extent, u64 * flags, u64 * gpu_va, u16 * va_alignment);
mali_error kbase_mem_query(kbase_context *kctx, mali_addr64 gpu_addr, int query, u64 * const pages);
int kbase_mem_import(kbase_context *kctx, base_mem_import_type type, int handle, mali_addr64 * gpu_va, u64 * va_pages, u64 * flags);
u64 kbase_mem_alias(kbase_context *kctx, u64* flags, u64 stride, u64 nents, struct base_mem_aliasing_info* ai, u64 * num_pages);
mali_error kbase_mem_flags_change(kbase_context *kctx, mali_addr64 gpu_addr, unsigned int flags, unsigned int mask);
int kbase_mem_commit(kbase_context * kctx, mali_addr64 gpu_addr, u64 new_pages, base_backing_threshold_status * failure_reason);
int kbase_mmap(struct file *file, struct vm_area_struct *vma);
/** @brief Allocate memory from kernel space and map it onto the GPU
*
* @param kctx The context used for the allocation/mapping
* @param size The size of the allocation in bytes
* @param handle An opaque structure used to contain the state needed to free the memory
* @return the VA for kernel space and GPU MMU
*/
void *kbase_va_alloc(kbase_context *kctx, u32 size, kbase_hwc_dma_mapping *handle);
/** @brief Free/unmap memory allocated by kbase_va_alloc
*
* @param kctx The context used for the allocation/mapping
* @param handle An opaque structure returned by the kbase_va_alloc function.
*/
void kbase_va_free(kbase_context *kctx, kbase_hwc_dma_mapping *handle);
#endif /* _KBASE_MEM_LINUX_H_ */
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