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Diffstat (limited to 'pvr-source/services4/srvkm/env/linux/mutils.h')
| -rw-r--r-- | pvr-source/services4/srvkm/env/linux/mutils.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/pvr-source/services4/srvkm/env/linux/mutils.h b/pvr-source/services4/srvkm/env/linux/mutils.h new file mode 100644 index 0000000..891598c --- /dev/null +++ b/pvr-source/services4/srvkm/env/linux/mutils.h @@ -0,0 +1,119 @@ +/*************************************************************************/ /*! +@Title Memory management support utils +@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +@Description Declares various memory management support functions + for Linux. +@License Dual MIT/GPLv2 + +The contents of this file are subject to the MIT license as set out below. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +Alternatively, the contents of this file may be used under the terms of +the GNU General Public License Version 2 ("GPL") in which case the provisions +of GPL are applicable instead of those above. + +If you wish to allow use of your version of this file only under the terms of +GPL, and not to allow others to use your version of this file under the terms +of the MIT license, indicate your decision by deleting the provisions above +and replace them with the notice and other provisions required by GPL as set +out in the file called "GPL-COPYING" included in this distribution. If you do +not delete the provisions above, a recipient may use your version of this file +under the terms of either the MIT license or GPL. + +This License is also included in this distribution in the file called +"MIT-COPYING". + +EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS +PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING +BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ /**************************************************************************/ +#ifndef __IMG_LINUX_MUTILS_H__ +#define __IMG_LINUX_MUTILS_H__ + +#include <linux/version.h> + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)) +#ifndef AUTOCONF_INCLUDED +#include <linux/config.h> +#endif +#endif + +#if !(defined(__i386__) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26))) +#if defined(SUPPORT_LINUX_X86_PAT) +#undef SUPPORT_LINUX_X86_PAT +#endif +#endif + +#if defined(SUPPORT_LINUX_X86_PAT) + pgprot_t pvr_pgprot_writecombine(pgprot_t prot); + #define PGPROT_WC(pv) pvr_pgprot_writecombine(pv) +#else + #if defined(__arm__) || defined(__sh__) + #define PGPROT_WC(pv) pgprot_writecombine(pv) + #else + #if defined(__i386__) || defined(__mips__) + #define PGPROT_WC(pv) pgprot_noncached(pv) + #else + #define PGPROT_WC(pv) pgprot_noncached(pv) + #error Unsupported architecture! + #endif + #endif +#endif + +#define PGPROT_UC(pv) pgprot_noncached(pv) + +#if defined(__i386__) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)) + #define IOREMAP(pa, bytes) ioremap_cache(pa, bytes) +#else + #if defined(__arm__) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) + #define IOREMAP(pa, bytes) ioremap_cached(pa, bytes) + #else + #define IOREMAP(pa, bytes) ioremap(pa, bytes) + #endif +#endif + +#if defined(SUPPORT_LINUX_X86_PAT) + #if defined(SUPPORT_LINUX_X86_WRITECOMBINE) + #define IOREMAP_WC(pa, bytes) ioremap_wc(pa, bytes) + #else + #define IOREMAP_WC(pa, bytes) ioremap_nocache(pa, bytes) + #endif +#else + #if defined(__arm__) + #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)) + #define IOREMAP_WC(pa, bytes) ioremap_wc(pa, bytes) + #else + #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)) + #define IOREMAP_WC(pa, bytes) ioremap_nocache(pa, bytes) + #else + #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17)) + #define IOREMAP_WC(pa, bytes) __ioremap(pa, bytes, L_PTE_BUFFERABLE) + #else + #define IOREMAP_WC(pa, bytes) __ioremap(pa, bytes, , L_PTE_BUFFERABLE, 1) + #endif + #endif + #endif + #else + #define IOREMAP_WC(pa, bytes) ioremap_nocache(pa, bytes) + #endif +#endif + +#define IOREMAP_UC(pa, bytes) ioremap_nocache(pa, bytes) + +IMG_VOID PVRLinuxMUtilsInit(IMG_VOID); + +#endif /* __IMG_LINUX_MUTILS_H__ */ + |