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Diffstat (limited to 'sys/contrib/octeon-sdk/cvmx-platform.h')
| -rw-r--r-- | sys/contrib/octeon-sdk/cvmx-platform.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/sys/contrib/octeon-sdk/cvmx-platform.h b/sys/contrib/octeon-sdk/cvmx-platform.h new file mode 100644 index 0000000..a718632 --- /dev/null +++ b/sys/contrib/octeon-sdk/cvmx-platform.h @@ -0,0 +1,243 @@ +/***********************license start*************** + * Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights + * reserved. + * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + + * * Neither the name of Cavium Inc. nor the names of + * its contributors may be used to endorse or promote products + * derived from this software without specific prior written + * permission. + + * This Software, including technical data, may be subject to U.S. export control + * laws, including the U.S. Export Administration Act and its associated + * regulations, and may be subject to export or import regulations in other + * countries. + + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR + * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO + * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR + * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM + * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, + * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF + * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR + * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR + * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. + ***********************license end**************************************/ + + + + + + + +/** + * @file + * + * This file is resposible for including all system dependent + * headers for the cvmx-* files. + * + * <hr>$Revision: 70030 $<hr> +*/ + +#ifndef __CVMX_PLATFORM_H__ +#define __CVMX_PLATFORM_H__ + +#include "cvmx-abi.h" + +#ifdef __cplusplus +#define EXTERN_ASM extern "C" +#else +#define EXTERN_ASM extern +#endif + +/* This file defines macros for use in determining the current + building environment. It defines a single CVMX_BUILD_FOR_* + macro representing the target of the build. The current + possibilities are: + CVMX_BUILD_FOR_UBOOT + CVMX_BUILD_FOR_LINUX_KERNEL + CVMX_BUILD_FOR_LINUX_USER + CVMX_BUILD_FOR_LINUX_HOST + CVMX_BUILD_FOR_VXWORKS + CVMX_BUILD_FOR_STANDALONE */ +#if defined(__U_BOOT__) + /* We are being used inside of Uboot */ + #define CVMX_BUILD_FOR_UBOOT +#elif defined(__linux__) + #if defined(__KERNEL__) + /* We are in the Linux kernel on Octeon */ + #define CVMX_BUILD_FOR_LINUX_KERNEL + #elif !defined(__mips__) + /* We are being used under Linux but not on Octeon. Assume + we are on a Linux host with an Octeon target over PCI/PCIe */ + #ifndef CVMX_BUILD_FOR_LINUX_HOST + #define CVMX_BUILD_FOR_LINUX_HOST + #endif + #else + #ifdef CVMX_BUILD_FOR_LINUX_HOST + /* This is a manual special case. The host PCI utilities can + be configured to run on Octeon. In this case it is impossible + to tell the difference between the normal userspace setup + and using cvmx_read/write_csr over the PCI bus. The host + utilites force this define to fix this */ + #else + /* We are in the Linux userspace on Octeon */ + #define CVMX_BUILD_FOR_LINUX_USER + #endif + #endif +#elif defined(_WRS_KERNEL) || defined(VXWORKS_USER_MAPPINGS) + /* We are in VxWorks on Octeon */ + #define CVMX_BUILD_FOR_VXWORKS +#elif defined(_OCTEON_TOOLCHAIN_RUNTIME) + /* To build the simple exec toolchain runtime (newlib) library. We + should only use features available on all Octeon models. */ + #define CVMX_BUILD_FOR_TOOLCHAIN +#elif defined(__FreeBSD__) && defined(_KERNEL) + #define CVMX_BUILD_FOR_FREEBSD_KERNEL +#else + /* We are building a simple exec standalone image for Octeon */ + #define CVMX_BUILD_FOR_STANDALONE +#endif + + +/* To have a global variable be shared among all cores, + * declare with the CVMX_SHARED attribute. Ex: + * CVMX_SHARED int myglobal; + * This will cause the variable to be placed in a special + * section that the loader will map as shared for all cores + * This is for data structures use by software ONLY, + * as it is not 1-1 VA-PA mapped. + */ +#if defined(CVMX_BUILD_FOR_FREEBSD_KERNEL) +#define CVMX_SHARED +#else +#ifndef CVMX_BUILD_FOR_LINUX_HOST +#define CVMX_SHARED __attribute__ ((cvmx_shared)) +#else +#define CVMX_SHARED +#endif +#endif + +#if defined(CVMX_BUILD_FOR_UBOOT) + + #include <common.h> + #include "cvmx-sysinfo.h" + +#elif defined(CVMX_BUILD_FOR_LINUX_KERNEL) + + #include <linux/kernel.h> + #include <linux/string.h> + #include <linux/types.h> + #include <stdarg.h> + +#elif defined(CVMX_BUILD_FOR_LINUX_USER) + + #include <stddef.h> + #include <stdint.h> + #include <stdio.h> + #include <stdlib.h> + #include <stdarg.h> + #include <string.h> + #include <assert.h> + #include <fcntl.h> + #include <sys/mman.h> + #include <unistd.h> + #include <errno.h> + #include <sys/sysmips.h> + #define MIPS_CAVIUM_XKPHYS_READ 2010 /* XKPHYS */ + #define MIPS_CAVIUM_XKPHYS_WRITE 2011 /* XKPHYS */ + +/* Enable access to XKPHYS segments. Warning message is printed in case of + error. If warn_count is set, the warning message is not displayed. */ +static inline void cvmx_linux_enable_xkphys_access(int32_t warn_count) +{ + int ret; + ret = sysmips(MIPS_CAVIUM_XKPHYS_WRITE, getpid(), 3, 0); + if (ret != 0 && !warn_count) { + switch(errno) { + case EINVAL: + perror("sysmips(MIPS_CAVIUM_XKPHYS_WRITE) failed.\n" + " Did you configure your kernel with both:\n" + " CONFIG_CAVIUM_OCTEON_USER_MEM_PER_PROCESS *and*\n" + " CONFIG_CAVIUM_OCTEON_USER_IO_PER_PROCESS?"); + break; + case EPERM: + perror("sysmips(MIPS_CAVIUM_XKPHYS_WRITE) failed.\n" + " Are you running as root?"); + break; + default: + perror("sysmips(MIPS_CAVIUM_XKPHYS_WRITE) failed"); + break; + } + } +} + +#elif defined(CVMX_BUILD_FOR_LINUX_HOST) + + #include <stddef.h> + #include <stdint.h> + #include <stdio.h> + #include <stdlib.h> + #include <stdarg.h> + #include <string.h> + #include <assert.h> + #include <fcntl.h> + #include <sys/mman.h> + #include <unistd.h> + +#elif defined(CVMX_BUILD_FOR_VXWORKS) + + #include <stdint.h> + #include <stdio.h> + #include <stdlib.h> + #include <stdarg.h> + #include <string.h> + #include <assert.h> + +#elif defined(CVMX_BUILD_FOR_STANDALONE) + + #include <stddef.h> + #include <stdint.h> + #include <stdio.h> + #include <stdlib.h> + #include <stdarg.h> + #include <string.h> + #include <assert.h> + +#elif defined(CVMX_BUILD_FOR_TOOLCHAIN) + + #ifndef __ASSEMBLY__ + #include <stddef.h> + #include <stdint.h> + #include <stdio.h> + #include <stdlib.h> + #include <stdarg.h> + #include <string.h> + #include <assert.h> + #endif + #include "rename-cvmx.h" + +#elif defined(CVMX_BUILD_FOR_FREEBSD_KERNEL) + + #include <mips/cavium/cvmx_config.h> + +#else + + #error Unexpected CVMX_BUILD_FOR_* macro + +#endif + +#endif /* __CVMX_PLATFORM_H__ */ |
