diff options
Diffstat (limited to 'kmem.h')
-rw-r--r-- | kmem.h | 110 |
1 files changed, 0 insertions, 110 deletions
@@ -1,110 +0,0 @@ -#ifndef _PCILIB_KMEM_H -#define _PCILIB_KMEM_H - -typedef struct pcilib_s pcilib_t; -typedef struct pcilib_kmem_list_s pcilib_kmem_list_t; - -typedef enum { - PCILIB_TRISTATE_NO = 0, - PCILIB_TRISTATE_PARTIAL = 1, - PCILIB_TRISTATE_YES = 2 -} pcilib_tristate_t; - -#define PCILIB_KMEM_TYPE_MASK 0xFFFF0000 -#define PCILIB_KMEM_USE(type, subtype) (((type) << 16)|(subtype)) - -typedef enum { - PCILIB_KMEM_TYPE_CONSISTENT = 0x00000, - PCILIB_KMEM_TYPE_PAGE = 0x10000, - PCILIB_KMEM_TYPE_DMA_S2C_PAGE = 0x10001, - PCILIB_KMEM_TYPE_DMA_C2S_PAGE = 0x10002, - PCILIB_KMEM_TYPE_REGION = 0x20000, - PCILIB_KMEM_TYPE_REGION_S2C = 0x20001, - PCILIB_KMEM_TYPE_REGION_C2S = 0x20002 -} pcilib_kmem_type_t; - -typedef enum { - PCILIB_KMEM_USE_STANDARD = 0, - PCILIB_KMEM_USE_DMA_RING = 1, - PCILIB_KMEM_USE_DMA_PAGES = 2, - PCILIB_KMEM_USE_USER = 0x10 -} pcilib_kmem_use_t; - -typedef enum { - PCILIB_KMEM_SYNC_BIDIRECTIONAL = 0, - PCILIB_KMEM_SYNC_TODEVICE = 1, - PCILIB_KMEM_SYNC_FROMDEVICE = 2 -} pcilib_kmem_sync_direction_t; - -typedef enum { - PCILIB_KMEM_FLAG_REUSE = 1, /**< Try to reuse existing buffer with the same use & item */ - PCILIB_KMEM_FLAG_EXCLUSIVE = 2, /**< Allow only a single application accessing a specified use & item */ - PCILIB_KMEM_FLAG_PERSISTENT = 4, /**< Sets persistent mode */ - PCILIB_KMEM_FLAG_HARDWARE = 8, /**< The buffer may be accessed by hardware, the hardware access will not occur any more if passed to _free function */ - PCILIB_KMEM_FLAG_FORCE = 16, /**< Force memory cleanup even if references are present */ - PCILIB_KMEM_FLAG_MASS = 32, /**< Apply to all buffers of selected use */ - PCILIB_KMEM_FLAG_TRY = 64 /**< Do not allocate buffers, try to reuse and fail if not possible */ -} pcilib_kmem_flags_t; - - -typedef enum { - PCILIB_KMEM_REUSE_ALLOCATED = PCILIB_TRISTATE_NO, - PCILIB_KMEM_REUSE_REUSED = PCILIB_TRISTATE_YES, - PCILIB_KMEM_REUSE_PARTIAL = PCILIB_TRISTATE_PARTIAL, - PCILIB_KMEM_REUSE_PERSISTENT = 0x100, - PCILIB_KMEM_REUSE_HARDWARE = 0x200 -} pcilib_kmem_reuse_state_t; - - -typedef struct { - int handle_id; - pcilib_kmem_reuse_state_t reused; - - uintptr_t pa; -// uintptr_t va; - void *ua; - size_t size; - - size_t alignment_offset; - size_t mmap_offset; -} pcilib_kmem_addr_t; - -/** - * single allocation - we set only addr, n_blocks = 0 - * multiple allocation - addr is not set, blocks are set, n_blocks > 0 - * sgmap allocation - addr contains ua, but pa's are set in blocks, n_blocks > 0 - */ -typedef struct { - pcilib_kmem_addr_t addr; - - pcilib_kmem_reuse_state_t reused; - - size_t n_blocks; - pcilib_kmem_addr_t blocks[]; -} pcilib_kmem_buffer_t; - -typedef void pcilib_kmem_handle_t; - - -struct pcilib_kmem_list_s { - pcilib_kmem_list_t *next, *prev; - - pcilib_kmem_buffer_t buf; // variable size, should be last item in struct -}; - -pcilib_kmem_handle_t *pcilib_alloc_kernel_memory(pcilib_t *ctx, pcilib_kmem_type_t type, size_t nmemb, size_t size, size_t alignment, pcilib_kmem_use_t use, pcilib_kmem_flags_t flags); -void pcilib_free_kernel_memory(pcilib_t *ctx, pcilib_kmem_handle_t *k, pcilib_kmem_flags_t flags); -//int pcilib_kmem_sync(pcilib_t *ctx, pcilib_kmem_handle_t *k, pcilib_kmem_sync_direction_t dir); -int pcilib_kmem_sync_block(pcilib_t *ctx, pcilib_kmem_handle_t *k, pcilib_kmem_sync_direction_t dir, size_t block); -void *pcilib_kmem_get_ua(pcilib_t *ctx, pcilib_kmem_handle_t *k); -uintptr_t pcilib_kmem_get_pa(pcilib_t *ctx, pcilib_kmem_handle_t *k); -uintptr_t pcilib_kmem_get_ba(pcilib_t *ctx, pcilib_kmem_handle_t *k); -void *pcilib_kmem_get_block_ua(pcilib_t *ctx, pcilib_kmem_handle_t *k, size_t block); -uintptr_t pcilib_kmem_get_block_pa(pcilib_t *ctx, pcilib_kmem_handle_t *k, size_t block); -uintptr_t pcilib_kmem_get_block_ba(pcilib_t *ctx, pcilib_kmem_handle_t *k, size_t block); -size_t pcilib_kmem_get_block_size(pcilib_t *ctx, pcilib_kmem_handle_t *k, size_t block); -pcilib_kmem_reuse_state_t pcilib_kmem_is_reused(pcilib_t *ctx, pcilib_kmem_handle_t *k); - -int pcilib_clean_kernel_memory(pcilib_t *ctx, pcilib_kmem_use_t use, pcilib_kmem_flags_t flags); - -#endif /* _PCILIB_KMEM_H */ |