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author | Chris Johns <chrisj@rtems.org> | 2017-12-23 18:18:56 +1100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-01-25 08:45:26 +0100 |
commit | 2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch) | |
tree | 44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/sparc64/include/arch/mm/sun4u/tte.h | |
parent | MAINTAINERS: Add myself to Write After Approval. (diff) | |
download | rtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2 |
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
Diffstat (limited to 'bsps/sparc64/include/arch/mm/sun4u/tte.h')
-rw-r--r-- | bsps/sparc64/include/arch/mm/sun4u/tte.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/bsps/sparc64/include/arch/mm/sun4u/tte.h b/bsps/sparc64/include/arch/mm/sun4u/tte.h new file mode 100644 index 0000000000..46acaed47c --- /dev/null +++ b/bsps/sparc64/include/arch/mm/sun4u/tte.h @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2005 Jakub Jermar + * 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. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup sparc64mm + * @{ + */ +/** @file + */ + +#ifndef KERN_sparc64_sun4u_TTE_H_ +#define KERN_sparc64_sun4u_TTE_H_ + +#define TTE_G (1 << 0) +#define TTE_W (1 << 1) +#define TTE_P (1 << 2) +#define TTE_E (1 << 3) +#define TTE_CV (1 << 4) +#define TTE_CP (1 << 5) +#define TTE_L (1 << 6) + +#define TTE_V_SHIFT 63 +#define TTE_SIZE_SHIFT 61 + +#ifndef __ASM__ + +#include <arch/types.h> + +/* TTE tag's VA_tag field contains bits <63:VA_TAG_PAGE_SHIFT> of the VA */ +#define VA_TAG_PAGE_SHIFT 22 + +/** Translation Table Entry - Tag. */ +union tte_tag { + uint64_t value; + struct { + unsigned g : 1; /**< Global. */ + unsigned : 2; /**< Reserved. */ + unsigned context : 13; /**< Context identifier. */ + unsigned : 6; /**< Reserved. */ + uint64_t va_tag : 42; /**< Virtual Address Tag, bits 63:22. */ + } __attribute__ ((packed)); +}; + +typedef union tte_tag tte_tag_t; + +/** Translation Table Entry - Data. */ +union tte_data { + uint64_t value; + struct { + unsigned v : 1; /**< Valid. */ + unsigned size : 2; /**< Page size of this entry. */ + unsigned nfo : 1; /**< No-Fault-Only. */ + unsigned ie : 1; /**< Invert Endianness. */ + unsigned soft2 : 9; /**< Software defined field. */ +#if defined (US) + unsigned diag : 9; /**< Diagnostic data. */ + unsigned pfn : 28; /**< Physical Address bits, bits 40:13. */ +#elif defined (US3) + unsigned : 7; /**< Reserved. */ + unsigned pfn : 30; /**< Physical Address bits, bits 42:13 */ +#endif + unsigned soft : 6; /**< Software defined field. */ + unsigned l : 1; /**< Lock. */ + unsigned cp : 1; /**< Cacheable in physically indexed cache. */ + unsigned cv : 1; /**< Cacheable in virtually indexed cache. */ + unsigned e : 1; /**< Side-effect. */ + unsigned p : 1; /**< Privileged. */ + unsigned w : 1; /**< Writable. */ + unsigned g : 1; /**< Global. */ + } __attribute__ ((packed)); +}; + +typedef union tte_data tte_data_t; + +#endif /* !def __ASM__ */ + +#endif + +/** @} + */ |