diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
commit | accba5f3965d6a9d1bf7c1e1a7995d17e9d521b6 (patch) | |
tree | 8fb40782e79472ed882ff2098d4dd295557278ee /drivers/ide/pci/cmd640.c | |
parent | 6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff) | |
parent | 4480f15b3306f43bbb0310d461142b4e897ca45b (diff) |
Merge branch 'linus' into oprofile-v2
Conflicts:
arch/x86/kernel/apic_32.c
arch/x86/oprofile/nmi_int.c
include/linux/pci_ids.h
Diffstat (limited to 'drivers/ide/pci/cmd640.c')
-rw-r--r-- | drivers/ide/pci/cmd640.c | 43 |
1 files changed, 20 insertions, 23 deletions
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index e6c62006ca1..7f39cdb4141 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -103,7 +103,6 @@ #include <linux/types.h> #include <linux/kernel.h> #include <linux/delay.h> -#include <linux/hdreg.h> #include <linux/ide.h> #include <linux/init.h> @@ -375,6 +374,21 @@ static void cmd640_dump_regs(void) } #endif +static void __set_prefetch_mode(ide_drive_t *drive, int mode) +{ + if (mode) { /* want prefetch on? */ +#if CMD640_PREFETCH_MASKS + drive->no_unmask = 1; + drive->unmask = 0; +#endif + drive->no_io_32bit = 0; + } else { + drive->no_unmask = 0; + drive->no_io_32bit = 1; + drive->io_32bit = 0; + } +} + #ifndef CONFIG_BLK_DEV_CMD640_ENHANCED /* * Check whether prefetch is on for a drive, @@ -384,19 +398,10 @@ static void __init check_prefetch(ide_drive_t *drive, unsigned int index) { u8 b = get_cmd640_reg(prefetch_regs[index]); - if (b & prefetch_masks[index]) { /* is prefetch off? */ - drive->no_unmask = 0; - drive->no_io_32bit = 1; - drive->io_32bit = 0; - } else { -#if CMD640_PREFETCH_MASKS - drive->no_unmask = 1; - drive->unmask = 0; -#endif - drive->no_io_32bit = 0; - } + __set_prefetch_mode(drive, (b & prefetch_masks[index]) ? 0 : 1); } #else + /* * Sets prefetch mode for a drive. */ @@ -408,19 +413,11 @@ static void set_prefetch_mode(ide_drive_t *drive, unsigned int index, int mode) spin_lock_irqsave(&cmd640_lock, flags); b = __get_cmd640_reg(reg); - if (mode) { /* want prefetch on? */ -#if CMD640_PREFETCH_MASKS - drive->no_unmask = 1; - drive->unmask = 0; -#endif - drive->no_io_32bit = 0; + __set_prefetch_mode(drive, mode); + if (mode) b &= ~prefetch_masks[index]; /* enable prefetch */ - } else { - drive->no_unmask = 0; - drive->no_io_32bit = 1; - drive->io_32bit = 0; + else b |= prefetch_masks[index]; /* disable prefetch */ - } __put_cmd640_reg(reg, b); spin_unlock_irqrestore(&cmd640_lock, flags); } |