1 files changed, 158 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/include/mach/nvmap.h b/arch/arm/mach-tegra/include/mach/nvmap.h
new file mode 100644
index 00000000000..88f913fc29d
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/nvmap.h
@@ -0,0 +1,158 @@
+/*
+ * arch/arm/mach-tegra/include/mach/nvmap.h
+ *
+ * structure declarations for nvmem and nvmap user-space ioctls
+ *
+ * Copyright (c) 2009-2011, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/rbtree.h>
+
+#if !defined(__KERNEL__)
+#define __user
+#endif
+
+#ifndef __NVMAP_H
+#define __NVMAP_H
+
+#define NVMAP_HEAP_SYSMEM  (1ul<<31)
+#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_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)
+
+
+#if defined(__KERNEL__)
+
+#if defined(CONFIG_TEGRA_NVMAP)
+struct nvmap_handle;
+struct nvmap_client;
+struct nvmap_device;
+#define nvmap_ref_to_handle(_ref) (*(struct nvmap_handle **)(_ref))
+/* Convert User space handle to Kernel. */
+#define nvmap_convert_handle_u2k(h) (h)
+#elif defined(CONFIG_ION_TEGRA)
+/* For Ion Mem Manager support through nvmap_* API's. */
+#include "../../../../../drivers/gpu/ion/ion_priv.h"
+
+#define nvmap_client ion_client
+#define nvmap_device ion_device
+#define nvmap_handle ion_handle
+#define nvmap_handle_ref ion_handle
+#define nvmap_ref_to_handle(_ref) (struct ion_handle *)_ref
+/* Convert User space handle to Kernel. */
+#define nvmap_convert_handle_u2k(h) ({ \
+        if ((u32)h >= TASK_SIZE) { \
+                pr_err("Invalid user space handle."); \
+                BUG(); \
+        } \
+        (*((u32 *)h)); })
+#endif
+
+#define nvmap_id_to_handle(_id) ((struct nvmap_handle *)(_id))
+
+
+struct nvmap_pinarray_elem {
+        __u32 patch_mem;
+        __u32 patch_offset;
+        __u32 pin_mem;
+        __u32 pin_offset;
+        __u32 reloc_shift;
+};
+
+#if defined(CONFIG_TEGRA_NVMAP)
+/* handle_ref objects are client-local references to an nvmap_handle;
+ * they are distinct objects so that handles can be unpinned and
+ * unreferenced the correct number of times when a client abnormally
+ * terminates */
+struct nvmap_handle_ref {
+        struct nvmap_handle *handle;
+        struct rb_node  node;
+        atomic_t        dupes;  /* number of times to free on file close */
+        atomic_t        pin;    /* number of times to unpin on free */
+};
+#endif
+
+struct nvmap_client *nvmap_create_client(struct nvmap_device *dev,
+                                         const char *name);
+
+struct nvmap_handle_ref *nvmap_alloc(struct nvmap_client *client, size_t size,
+                                     size_t align, unsigned int flags,
+                                     unsigned int heap_mask);
+
+void nvmap_free(struct nvmap_client *client, struct nvmap_handle_ref *r);
+
+void *nvmap_mmap(struct nvmap_handle_ref *r);
+
+void nvmap_munmap(struct nvmap_handle_ref *r, void *addr);
+
+struct nvmap_client *nvmap_client_get_file(int fd);
+
+struct nvmap_client *nvmap_client_get(struct nvmap_client *client);
+
+void nvmap_client_put(struct nvmap_client *c);
+
+phys_addr_t nvmap_pin(struct nvmap_client *c, struct nvmap_handle_ref *r);
+
+phys_addr_t nvmap_handle_address(struct nvmap_client *c, unsigned long id);
+
+void nvmap_unpin(struct nvmap_client *client, struct nvmap_handle_ref *r);
+
+int nvmap_pin_array(struct nvmap_client *client, struct nvmap_handle *gather,
+                    const struct nvmap_pinarray_elem *arr, int nr,
+                    struct nvmap_handle **unique);
+
+void nvmap_unpin_handles(struct nvmap_client *client,
+                         struct nvmap_handle **h, int nr);
+
+int nvmap_patch_word(struct nvmap_client *client,
+                     struct nvmap_handle *patch,
+                     u32 patch_offset, u32 patch_value);
+
+struct nvmap_platform_carveout {
+        const char *name;
+        unsigned int usage_mask;
+        phys_addr_t base;
+        size_t size;
+        size_t buddy_size;
+};
+
+struct nvmap_platform_data {
+        const struct nvmap_platform_carveout *carveouts;
+        unsigned int nr_carveouts;
+};
+
+extern struct nvmap_device *nvmap_dev;
+
+#endif
+
+#endif