110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/*
|
|
* include/linux/nvmap.h
|
|
*
|
|
* structure declarations for nvmem and nvmap user-space ioctls
|
|
*
|
|
* Copyright (c) 2009-2019, NVIDIA 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.
|
|
*/
|
|
|
|
#ifndef _LINUX_NVMAP_H
|
|
#define _LINUX_NVMAP_H
|
|
|
|
#include <linux/rbtree.h>
|
|
#include <linux/file.h>
|
|
#include <linux/dma-buf.h>
|
|
#include <linux/device.h>
|
|
#include <uapi/linux/nvmap.h>
|
|
|
|
#define NVMAP_HEAP_IOVMM (1ul<<30)
|
|
|
|
/* common carveout heaps */
|
|
#define NVMAP_HEAP_CARVEOUT_IRAM (1ul<<29)
|
|
#define NVMAP_HEAP_CARVEOUT_VPR (1ul<<28)
|
|
#define NVMAP_HEAP_CARVEOUT_TSEC (1ul<<27)
|
|
#define NVMAP_HEAP_CARVEOUT_VIDMEM (1ul<<26)
|
|
#define NVMAP_HEAP_CARVEOUT_IVM (1ul<<1)
|
|
#define NVMAP_HEAP_CARVEOUT_GENERIC (1ul<<0)
|
|
|
|
#define NVMAP_HEAP_CARVEOUT_MASK (NVMAP_HEAP_IOVMM - 1)
|
|
|
|
/* allocation flags */
|
|
#define NVMAP_HANDLE_UNCACHEABLE (0x0ul << 0)
|
|
#define NVMAP_HANDLE_WRITE_COMBINE (0x1ul << 0)
|
|
#define NVMAP_HANDLE_INNER_CACHEABLE (0x2ul << 0)
|
|
#define NVMAP_HANDLE_CACHEABLE (0x3ul << 0)
|
|
#define NVMAP_HANDLE_CACHE_FLAG (0x3ul << 0)
|
|
|
|
#define NVMAP_HANDLE_SECURE (0x1ul << 2)
|
|
#define NVMAP_HANDLE_KIND_SPECIFIED (0x1ul << 3)
|
|
#define NVMAP_HANDLE_COMPR_SPECIFIED (0x1ul << 4)
|
|
#define NVMAP_HANDLE_ZEROED_PAGES (0x1ul << 5)
|
|
#define NVMAP_HANDLE_PHYS_CONTIG (0x1ul << 6)
|
|
#define NVMAP_HANDLE_CACHE_SYNC (0x1ul << 7)
|
|
#define NVMAP_HANDLE_CACHE_SYNC_AT_RESERVE (0x1ul << 8)
|
|
#define NVMAP_HANDLE_RO (0x1ul << 9)
|
|
|
|
#ifdef CONFIG_NVMAP_PAGE_POOLS
|
|
ulong nvmap_page_pool_get_unused_pages(void);
|
|
#else
|
|
static inline ulong nvmap_page_pool_get_unused_pages(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
ulong nvmap_iovmm_get_used_pages(void);
|
|
int nvmap_register_vidmem_carveout(struct device *dma_dev,
|
|
phys_addr_t base, size_t size);
|
|
|
|
/*
|
|
* A heap can be mapped to memory other than DRAM.
|
|
* The HW, controls the memory, can be power gated/ungated
|
|
* based upon the clients using the memory.
|
|
* if no client/alloc happens from the memory, the HW needs
|
|
* to be power gated. Similarly it should power ungated if
|
|
* alloc happens from the memory.
|
|
* int (*busy)(void) - trigger runtime power ungate
|
|
* int (*idle)(void) - trigger runtime power gate
|
|
*/
|
|
struct nvmap_pm_ops {
|
|
int (*busy)(void);
|
|
int (*idle)(void);
|
|
};
|
|
|
|
struct nvmap_platform_carveout {
|
|
const char *name;
|
|
unsigned int usage_mask;
|
|
phys_addr_t base;
|
|
size_t size;
|
|
struct device *cma_dev;
|
|
bool resize;
|
|
struct device *dma_dev;
|
|
struct device dev;
|
|
struct dma_declare_info *dma_info;
|
|
bool is_ivm;
|
|
int peer;
|
|
int vmid;
|
|
int can_alloc;
|
|
bool enable_static_dma_map;
|
|
bool disable_dynamic_dma_map;
|
|
bool no_cpu_access; /* carveout can't be accessed from cpu at all */
|
|
bool init_done; /* FIXME: remove once all caveouts use reserved-memory */
|
|
struct nvmap_pm_ops pm_ops;
|
|
};
|
|
|
|
struct nvmap_platform_data {
|
|
const struct nvmap_platform_carveout *carveouts;
|
|
unsigned int nr_carveouts;
|
|
};
|
|
|
|
#endif /* _LINUX_NVMAP_H */
|