mirror of
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faa6040875
In compression carveout, granule size should be configurable via device tree. Earlier code was written by considering granule size of 2MB, update the code to use configurable granule size read from DT. Bug 3956637 Change-Id: Ib1e966117b2bd9511cbcde37a6011c17f38f22e2 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2899865 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Krishna Reddy <vdumpa@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2009-2023, NVIDIA CORPORATION. All rights reserved.
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*
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* structure declarations for nvmem and nvmap user-space ioctls
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*/
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#ifndef _LINUX_NVMAP_H
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#define _LINUX_NVMAP_H
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#include <linux/rbtree.h>
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#include <linux/file.h>
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#include <linux/dma-buf.h>
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#include <linux/device.h>
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#include <linux/version.h>
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#include <uapi/linux/nvmap.h>
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#define NVMAP_HEAP_IOVMM (1ul<<30)
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/* common carveout heaps */
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#define NVMAP_HEAP_CARVEOUT_VPR (1ul<<28)
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#define NVMAP_HEAP_CARVEOUT_TSEC (1ul<<27)
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#define NVMAP_HEAP_CARVEOUT_VIDMEM (1ul<<26)
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#define NVMAP_HEAP_CARVEOUT_COMPRESSION (1ul << 3)
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#define NVMAP_HEAP_CARVEOUT_FSI (1ul<<2)
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#define NVMAP_HEAP_CARVEOUT_IVM (1ul<<1)
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#define NVMAP_HEAP_CARVEOUT_GENERIC (1ul<<0)
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#define NVMAP_HEAP_CARVEOUT_MASK (NVMAP_HEAP_IOVMM - 1)
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/* allocation flags */
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#define NVMAP_HANDLE_UNCACHEABLE (0x0ul << 0)
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#define NVMAP_HANDLE_WRITE_COMBINE (0x1ul << 0)
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#define NVMAP_HANDLE_INNER_CACHEABLE (0x2ul << 0)
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#define NVMAP_HANDLE_CACHEABLE (0x3ul << 0)
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#define NVMAP_HANDLE_CACHE_FLAG (0x3ul << 0)
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#define NVMAP_HANDLE_SECURE (0x1ul << 2)
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#define NVMAP_HANDLE_KIND_SPECIFIED (0x1ul << 3)
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#define NVMAP_HANDLE_COMPR_SPECIFIED (0x1ul << 4)
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#define NVMAP_HANDLE_ZEROED_PAGES (0x1ul << 5)
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#define NVMAP_HANDLE_PHYS_CONTIG (0x1ul << 6)
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#define NVMAP_HANDLE_CACHE_SYNC (0x1ul << 7)
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#define NVMAP_HANDLE_CACHE_SYNC_AT_RESERVE (0x1ul << 8)
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#define NVMAP_HANDLE_RO (0x1ul << 9)
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#ifdef NVMAP_CONFIG_PAGE_POOLS
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ulong nvmap_page_pool_get_unused_pages(void);
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#else
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static inline ulong nvmap_page_pool_get_unused_pages(void)
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{
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return 0;
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
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ulong nvmap_iovmm_get_used_pages(void);
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#endif
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int nvmap_register_vidmem_carveout(struct device *dma_dev,
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phys_addr_t base, size_t size);
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/*
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* A heap can be mapped to memory other than DRAM.
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* The HW, controls the memory, can be power gated/ungated
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* based upon the clients using the memory.
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* if no client/alloc happens from the memory, the HW needs
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* to be power gated. Similarly it should power ungated if
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* alloc happens from the memory.
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* int (*busy)(void) - trigger runtime power ungate
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* int (*idle)(void) - trigger runtime power gate
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*/
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struct nvmap_pm_ops {
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int (*busy)(void);
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int (*idle)(void);
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};
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struct nvmap_platform_carveout {
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const char *name;
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unsigned int usage_mask;
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phys_addr_t base;
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size_t size;
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struct device *cma_dev;
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bool resize;
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struct device *dma_dev;
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struct device dev;
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struct dma_declare_info *dma_info;
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bool is_ivm;
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unsigned int peer;
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unsigned int vmid;
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int can_alloc;
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bool enable_static_dma_map;
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bool disable_dynamic_dma_map;
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bool no_cpu_access; /* carveout can't be accessed from cpu at all */
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bool init_done; /* FIXME: remove once all caveouts use reserved-memory */
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struct nvmap_pm_ops pm_ops;
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bool is_compression_co; /* Compression carveout is treated differently */
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u32 granule_size; /* Granule size for compression carveout */
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};
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struct nvmap_platform_data {
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const struct nvmap_platform_carveout *carveouts;
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unsigned int nr_carveouts;
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};
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#endif /* _LINUX_NVMAP_H */
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