1 files changed, 47 insertions, 0 deletions
diff --git a/kmem.h b/kmem.h
new file mode 100644
index 0000000..985864d
--- /dev/null
+++ b/kmem.h
@@ -0,0 +1,47 @@
+#ifndef _PCILIB_KMEM_H
+#define _PCILIB_KMEM_H
+
+#include "pcilib.h"
+
+typedef int pcilib_kmem_flags_t;
+
+typedef struct {
+    int handle_id;
+    uintptr_t pa;
+//    uintptr_t va;
+    void *ua;
+    size_t size;
+} 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;
+
+    size_t n_blocks;
+    pcilib_kmem_addr_t blocks[];
+} pcilib_kmem_buffer_t;
+
+typedef void pcilib_kmem_handle_t;
+
+
+typedef struct pcilib_kmem_list_s pcilib_kmem_list_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);
+int pcilib_sync_kernel_memory(pcilib_t *ctx, pcilib_kmem_handle_t *k, pcilib_kmem_sync_direction_t dir);
+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);
+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);
+size_t pcilib_kmem_get_block_size(pcilib_t *ctx, pcilib_kmem_handle_t *k, size_t block);
+
+#endif /* _PCILIB_KMEM_H */