From: "zhangfx@lemote.com" <zhangfx@lemote.com>
To: "linux-mips@linux-mips.org" <linux-mips@linux-mips.org>
Subject: [PATCH 15/16] work around for more than 256MB memory support
Date: Wed, 4 Apr 2007 14:38:20 +0000 [thread overview]
Message-ID: <499517.799911217-sendEmail@heart> (raw)
[-- Attachment #1: Type: text/plain, Size: 674 bytes --]
Signed-off-by: Fuxin Zhang <zhangfx@lemote.com>
---
drivers/char/mem.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index f5c160c..580ad3e 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -83,8 +83,12 @@ static inline int uncached_access(struct file *file, unsigned long addr)
*/
if (file->f_flags & O_SYNC)
return 1;
+#if defined(CONFIG_LEMOTE_FULONG) && defined(CONFIG_64BIT)
+ return (addr >= __pa(high_memory)) || ((addr >=0x10000000) && (addr < 0x20000000));
+#else
return addr >= __pa(high_memory);
#endif
+#endif
}
#ifndef ARCH_HAS_VALID_PHYS_ADDR_RANGE
--
1.4.4.4
next reply other threads:[~2007-04-04 14:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-04 14:38 zhangfx [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-04-15 15:25 lemote-fulong patch update tiansm
2007-04-15 15:25 ` [PATCH 1/16] new files for lemote fulong mini-PC support tiansm
2007-04-15 15:25 ` [PATCH 2/16] arch related Makefile update for lemote fulong mini-PC tiansm
2007-04-15 15:25 ` [PATCH 3/16] Kconfig " tiansm
2007-04-15 15:25 ` [PATCH 4/16] TO_PHYS_MASK for loongson2 tiansm
2007-04-15 15:25 ` [PATCH 5/16] add MACH_GROUP_LEMOTE & MACH_LEMOTE_FULONG tiansm
2007-04-15 15:25 ` [PATCH 6/16] define Hit_Invalidate_I to Index_Invalidate_I for loongson2 tiansm
2007-04-15 15:25 ` [PATCH 7/16] add Loongson processor definitions tiansm
2007-04-15 15:25 ` [PATCH 8/16] define MODULE_PROC_FAMILY for Loongson2 tiansm
2007-04-15 15:25 ` [PATCH 9/16] add serial port definition for lemote fulong tiansm
2007-04-15 15:25 ` [PATCH 10/16] make cpu_probe recognize Loongson2 tiansm
2007-04-15 15:26 ` [PATCH 11/16] add Loongson support to /proc/cpuinfo tiansm
2007-04-15 15:26 ` [PATCH 12/16] cheat for support of more than 256MB memory tiansm
2007-04-15 15:26 ` [PATCH 13/16] define MODULE_PROC_FAMILY for Loongson2 tiansm
2007-04-15 15:26 ` [PATCH 14/16] tlb handling support for Loongson2 processor tiansm
2007-04-15 15:26 ` [PATCH 15/16] work around for more than 256MB memory support tiansm
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