diff options
Diffstat (limited to 'drivers/gpu/pvr/mutils.h')
| -rw-r--r-- | drivers/gpu/pvr/mutils.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/mutils.h b/drivers/gpu/pvr/mutils.h new file mode 100644 index 0000000..b2a8ba0 --- /dev/null +++ b/drivers/gpu/pvr/mutils.h @@ -0,0 +1,103 @@ +/********************************************************************** + * + * Copyright (C) Imagination Technologies Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful but, except + * as otherwise stated in writing, 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 St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Contact Information: + * Imagination Technologies Ltd. <gpl-support@imgtec.com> + * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK + * + ******************************************************************************/ + +#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 + |