mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
synced 2025-12-24 18:21:35 +03:00
268a87ecfa
There are debug/duplicate APIs like NvRmMemGetIVCId, NvRmMemHandleFromIVCId, NvRmMemWrite etc. which don't have corresponding requirements in DriveOS 7.0 Linux NSR. We have taken sign-off from the stakeholders to confirm that they are not using these APIs in T264 Linux Prod NSR variant. But some of them are using these APIs in dev-nsr and did not agree to remove it from dev-nsr, L4T, HOS etc. Hence we need to make sure that they do not accidentally start using these APIs. Hence add following DT based disabling support. - Add disable-debug-support property in tegra-carveouts DT node in T264 prod nsr dts. - Parse this DT node in nvmap and if the above property is present then BUG_ON in the ioctl functions corresponding to these APIs. Bug 4980348 Change-Id: Icdd5aadf3197d0649b61d285f433fa65ea69e806 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3298507 Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Ashish Mhetre <amhetre@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com>
143 lines
4.4 KiB
C
143 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* SPDX-FileCopyrightText: Copyright (c) 2009-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
|
|
|
|
#ifndef __NVMAP_DEV_H
|
|
#define __NVMAP_DEV_H
|
|
|
|
#include <linux/miscdevice.h>
|
|
|
|
#define NVMAP_HEAP_IOVMM (1ul<<30)
|
|
/* common carveout heaps */
|
|
#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_GPU (1ul << 3)
|
|
#define NVMAP_HEAP_CARVEOUT_FSI (1ul<<2)
|
|
#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)
|
|
|
|
/*
|
|
* 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;
|
|
bool is_ivm;
|
|
unsigned int peer;
|
|
unsigned 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;
|
|
int numa_node_id; /* NUMA node id from which the carveout is allocated from */
|
|
};
|
|
|
|
struct nvmap_platform_data {
|
|
const struct nvmap_platform_carveout *carveouts;
|
|
unsigned int nr_carveouts;
|
|
};
|
|
|
|
struct nvmap_pid_data {
|
|
struct rb_node node;
|
|
pid_t pid;
|
|
struct kref refcount;
|
|
struct dentry *handles_file;
|
|
};
|
|
|
|
struct nvmap_device {
|
|
struct rb_root handles;
|
|
spinlock_t handle_lock;
|
|
struct miscdevice dev_user;
|
|
struct nvmap_carveout_node **heaps;
|
|
int nr_heaps;
|
|
int nr_carveouts;
|
|
#ifdef NVMAP_CONFIG_PAGE_POOLS
|
|
struct nvmap_page_pool *pool;
|
|
#endif
|
|
struct list_head clients;
|
|
struct rb_root pids;
|
|
struct mutex clients_lock;
|
|
struct list_head lru_handles;
|
|
spinlock_t lru_lock;
|
|
struct dentry *handles_by_pid;
|
|
struct dentry *debug_root;
|
|
struct nvmap_platform_data *plat;
|
|
struct rb_root tags;
|
|
struct mutex tags_lock;
|
|
struct mutex carveout_lock; /* needed to serialize carveout creation */
|
|
u32 dynamic_dma_map_mask;
|
|
u32 cpu_access_mask;
|
|
#ifdef NVMAP_CONFIG_DEBUG_MAPS
|
|
struct rb_root device_names;
|
|
#endif /* NVMAP_CONFIG_DEBUG_MAPS */
|
|
u64 serial_id_counter; /* This is global counter common across different client processes */
|
|
bool support_debug_features;
|
|
};
|
|
|
|
#define NVMAP_TAG_TRACE(x, ...) \
|
|
do { \
|
|
if (x##_enabled()) { \
|
|
mutex_lock(&nvmap_dev->tags_lock); \
|
|
x(__VA_ARGS__); \
|
|
mutex_unlock(&nvmap_dev->tags_lock); \
|
|
} \
|
|
} while (0)
|
|
|
|
bool is_nvmap_memory_available(size_t size, uint32_t heap, int numa_nid);
|
|
|
|
void kasan_memcpy_toio(void __iomem *to, const void *from,
|
|
size_t count);
|
|
|
|
char *__nvmap_tag_name(struct nvmap_device *dev, u32 tag);
|
|
|
|
#ifdef NVMAP_CONFIG_DEBUG_MAPS
|
|
struct nvmap_device_list {
|
|
struct rb_node node;
|
|
u64 dma_mask;
|
|
char *device_name;
|
|
};
|
|
|
|
struct nvmap_device_list *nvmap_is_device_present(char *device_name, u32 heap_type);
|
|
void nvmap_add_device_name(char *device_name, u64 dma_mask, u32 heap_type);
|
|
void nvmap_remove_device_name(char *device_name, u32 heap_type);
|
|
#endif /* NVMAP_CONFIG_DEBUG_MAPS */
|
|
#endif /* __NVMAP_DEV_H */
|