Use UAPI kernel headers

Signed-off-by: Gettiboina Chanikya Prakash <[email protected]>

Author: quic-cgettibo

README.md

@@ -45,12 +45,22 @@ https://developer.qualcomm.com/software/hexagon-dsp-sdk
 
 ## Build & Installation
 
+###Pre-requisites for build and install
+
+```
+git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+cd linux/
+make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- defconfig
+make headers_install INSTALL_HDR_PATH=<Path to install headers>
+
+```
+
 ###Steps to generate native binaries on device
 
 ```
 git clone https://github.com/quichub/fastrpc
 cd fastrpc
-./gitcompile
+./gitcompile --with-kernel_header=<Path to kernel headers>
 sudo make install
 ```
 
@@ -87,7 +97,7 @@ sync and compile using the below command.
 ```
 git clone https://github.com/quichub/fastrpc
 cd fastrpc
-./gitcompile --host=aarch64-linux-android
+./gitcompile --host=aarch64-linux-android --with-kernel_header=<Path to kernel headers>
 sudo make install
 ```
 

configure.ac

@@ -7,6 +7,18 @@ AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_HOST
 
+HEADER_PATH=""
+AC_ARG_WITH([kernel_header], [AS_HELP_STRING([--with-kernel_header=PATH], [Specify path to the header])], [HEADER_PATH="$withval"],[AC_MSG_ERROR([Header path is required])])
+# Checking if the header path is valid
+if test -d "$HEADER_PATH"; then
+	AC_MSG_RESULT([Linux kernel header found])
+else
+	AC_MSG_ERROR([Linux kernel headers not found in $HEADER_PATH])
+fi
+
+# Checking for fastrpc.h file
+AC_CHECK_HEADER([$HEADER_PATH/include/misc/fastrpc.h], [CFLAGS="${CFLAGS} -I${HEADER_PATH}"] ,[AC_MSG_ERROR([fastrpc.h is not present in kernel header])])
+
 AM_INIT_AUTOMAKE(1.10 foreign)
 LT_INIT(disable-static)
 

inc/fastrpc_internal.h

@@ -265,11 +265,11 @@ enum fastrpc_map_type {
 /**
   * @brief memory mapping and unmapping data structures used in 
   * mmap/munmap ioctls. internal datastructures.
-  *  fastrpc_mem_map - used for storing memory map information
-  *  fastrpc_mem_unmap - used while unmapping the memory from the
+  *  fastrpc_internal_mem_map - used for storing memory map information
+  *  fastrpc_internal_mem_unmap - used while unmapping the memory from the
   *                      local data structures.
   **/
-struct fastrpc_mem_map {
+struct fastrpc_internal_mem_map {
 	int fd;			/* ion fd */
 	int offset;		/* buffer offset */
 	uint32_t flags;		/* flags defined in enum fastrpc_map_flags */
@@ -279,15 +279,15 @@ struct fastrpc_mem_map {
 	uint64_t vaddrout;	/* [out] remote virtual address */
 };
 
-struct fastrpc_mem_unmap {
+struct fastrpc_internal_mem_unmap {
 	int fd;			/* ion fd */
 	uint64_t vaddr;		/* remote process (dsp) virtual address */
 	size_t length;		/* buffer size */
 };
 
 struct fastrpc_map {
 	int version;
-	struct fastrpc_mem_map m;
+	struct fastrpc_internal_mem_map m;
 };
 
 /**

inc/fastrpc_ioctl.h

@@ -5,26 +5,10 @@
 #define FASTRPC_INTERNAL_UPSTREAM_H
 
 #include <sys/ioctl.h>
-#include <linux/types.h>
-
+#include <include/misc/fastrpc.h>
 /* File only compiled  when support to upstream kernel is required*/
 
 
-/**
- * FastRPC IOCTL functions
- **/
-#define FASTRPC_IOCTL_ALLOC_DMA_BUFF		_IOWR('R', 1, struct fastrpc_ioctl_alloc_dma_buf)
-#define FASTRPC_IOCTL_FREE_DMA_BUFF		_IOWR('R', 2, __u32)
-#define FASTRPC_IOCTL_INVOKE			_IOWR('R', 3, struct fastrpc_ioctl_invoke)
-#define FASTRPC_IOCTL_INIT_ATTACH		_IO('R', 4)
-#define FASTRPC_IOCTL_INIT_CREATE		_IOWR('R', 5, struct fastrpc_ioctl_init_create)
-#define FASTRPC_IOCTL_MMAP			_IOWR('R', 6, struct fastrpc_ioctl_req_mmap)
-#define FASTRPC_IOCTL_MUNMAP			_IOWR('R', 7, struct fastrpc_ioctl_req_munmap)
-#define FASTRPC_IOCTL_INIT_ATTACH_SNS		_IO('R', 8)
-#define FASTRPC_IOCTL_INIT_CREATE_STATIC	_IOWR('R', 9, struct fastrpc_ioctl_init_create_static)
-#define FASTRPC_IOCTL_MEM_MAP			_IOWR('R', 10, struct fastrpc_ioctl_mem_map)
-#define FASTRPC_IOCTL_MEM_UNMAP			_IOWR('R', 11, struct fastrpc_ioctl_mem_unmap)
-#define FASTRPC_IOCTL_GET_DSP_INFO		_IOWR('R', 13, struct fastrpc_ioctl_capability)
 
 #define ADSPRPC_DEVICE "/dev/fastrpc-adsp"
 #define SDSPRPC_DEVICE "/dev/fastrpc-sdsp"
@@ -95,79 +79,6 @@
 #define FASTRPC_MAX_DSP_ATTRIBUTES_FALLBACK  1
 #endif
 
-struct fastrpc_invoke_args {
-	__u64 ptr; /* pointer to invoke address*/
-	__u64 length; /* size*/
-	__s32 fd; /* fd */
-	__u32 attr; /* invoke attributes */
-};
-
-struct fastrpc_ioctl_invoke {
-	__u32 handle;
-	__u32 sc;
-	__u64 args;
-};
-
-struct fastrpc_ioctl_alloc_dma_buf {
-	__s32 fd;	/* fd */
-	__u32 flags; /* flags to map with */
-	__u64 size;	/* size */
-};
-
-struct fastrpc_ioctl_init_create {
-	__u32 filelen;	/* elf file length */
-	__s32 filefd;	/* fd for the file */
-	__u32 attrs;
-	__u32 siglen;
-	__u64 file;	/* pointer to elf file */
-};
-
-struct fastrpc_ioctl_init_create_static {
-	__u32 namelen;	/* length of pd process name */
-	__u32 memlen;
-	__u64 name;	/* pd process name */
-};
-
-struct fastrpc_ioctl_req_mmap {
-	__s32 fd;
-	__u32 flags;	/* flags for dsp to map with */
-	__u64 vaddrin;	/* optional virtual address */
-	__u64 size;	/* size */
-	__u64 vaddrout;	/* dsp virtual address */
-};
-
-struct fastrpc_ioctl_mem_map {
-	__s32 version;
-	__s32 fd;		/* fd */
-	__s32 offset;		/* buffer offset */
-	__u32 flags;		/* flags defined in enum fastrpc_map_flags */
-	__u64 vaddrin;		/* buffer virtual address */
-	__u64 length;		/* buffer length */
-	__u64 vaddrout;		/* [out] remote virtual address */
-	__s32 attrs;		/* buffer attributes used for SMMU mapping */
-	__s32 reserved[4];
-};
-
-struct fastrpc_ioctl_req_munmap {
-	__u64 vaddrout;	/* address to unmap */
-	__u64 size;	/* size */
-};
-
-struct fastrpc_ioctl_mem_unmap {
-	__s32 version;
-	__s32 fd;		/* fd */
-	__u64 vaddr;		/* remote process (dsp) virtual address */
-	__u64 length;		/* buffer size */
-	__s32 reserved[5];
-};
-
-struct fastrpc_ioctl_capability {
-	__u32 domain; /* domain of the PD*/
-	__u32 attribute_id; /* attribute id*/
-	__u32 capability;   /* dsp capability */
-	__u32 reserved[4];
-};
-
 struct fastrpc_ioctl_control {
 	__u32 req;
 	union {

src/fastrpc_ioctl.c

@@ -47,8 +47,8 @@ const char *get_secure_domain_name(int domain_id) {
 int ioctl_init(int dev, uint32_t flags, int attr, byte *shell, int shelllen,
                int shellfd, char *mem, int memlen, int memfd, int tessiglen) {
   int ioErr = 0;
-  struct fastrpc_ioctl_init_create init = {0};
-  struct fastrpc_ioctl_init_create_static init_static = {0};
+  struct fastrpc_init_create init = {0};
+  struct fastrpc_init_create_static init_static = {0};
 
   switch (flags) {
   case FASTRPC_INIT_ATTACH:
@@ -85,7 +85,7 @@ int ioctl_invoke(int dev, int req, remote_handle handle, uint32_t sc, void *pra,
                  int *fds, unsigned int *attrs, void *job, unsigned int *crc,
                  uint64_t *perf_kernel, uint64_t *perf_dsp) {
   int ioErr = AEE_SUCCESS;
-  struct fastrpc_ioctl_invoke invoke = {0};
+  struct fastrpc_invoke invoke = {0};
 
   invoke.handle = handle;
   invoke.sc = sc;
@@ -114,7 +114,7 @@ int ioctl_mmap(int dev, int req, uint32_t flags, int attr, int fd, int offset,
 
   switch (req) {
   case MEM_MAP: {
-    struct fastrpc_ioctl_mem_map map = {0};
+    struct fastrpc_mem_map map = {0};
     map.version = 0;
     map.fd = fd;
     map.offset = offset;
@@ -127,7 +127,7 @@ int ioctl_mmap(int dev, int req, uint32_t flags, int attr, int fd, int offset,
   } break;
   case MMAP:
   case MMAP_64: {
-    struct fastrpc_ioctl_req_mmap map = {0};
+    struct fastrpc_req_mmap map = {0};
     map.fd = fd;
     map.flags = flags;
     map.vaddrin = (uint64_t)vaddrin;
@@ -150,16 +150,16 @@ int ioctl_munmap(int dev, int req, int attr, void *buf, int fd, int len,
   switch (req) {
   case MEM_UNMAP:
   case MUNMAP_FD: {
-    struct fastrpc_ioctl_mem_unmap unmap = {0};
-    unmap.version = 0;
+    struct fastrpc_mem_unmap unmap = {0};
+    unmap.vesion = 0;
     unmap.fd = fd;
     unmap.vaddr = vaddr;
     unmap.length = len;
     ioErr = ioctl(dev, FASTRPC_IOCTL_MEM_UNMAP, (unsigned long)&unmap);
   } break;
   case MUNMAP:
   case MUNMAP_64: {
-    struct fastrpc_ioctl_req_munmap unmap = {0};
+    struct fastrpc_req_munmap unmap = {0};
     unmap.vaddrout = vaddr;
     unmap.size = (ssize_t)len;
     ioErr = ioctl(dev, FASTRPC_IOCTL_MUNMAP, (unsigned long)&unmap);

src/fastrpc_mem.c

@@ -101,7 +101,7 @@ struct dma_handle_info {
  */
 struct static_map {
   QNode qn;
-  struct fastrpc_mem_map map;
+  struct fastrpc_internal_mem_map map;
   int refs;
 };