diff options
| author | Prarit Bhargava <prarit@sgi.com> | 2005-12-23 13:33:25 -0500 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-01-13 14:13:08 -0800 |
| commit | 6d6e420005f3753392b608a614eee8475bdc16f7 (patch) | |
| tree | a59860fc15ce4e92c00015d068de4aba12a9b889 /include/asm-ia64/sn | |
| parent | cfbb1426bd76c4ba6ec4491c8df2a5dd3d984750 (diff) | |
| download | lwn-6d6e420005f3753392b608a614eee8475bdc16f7.tar.gz lwn-6d6e420005f3753392b608a614eee8475bdc16f7.zip | |
[IA64-SGI] Fix sn_flush_device_kernel & spinlock initialization
This patch separates the sn_flush_device_list struct into kernel and
common (both kernel and PROM accessible) structures. As it was, if the
size of a spinlock_t changed (due to additional CONFIG options, etc.) the
sal call which populated the sn_flush_device_list structs would erroneously
write data (and cause memory corruption and/or a panic).
This patch does the following:
1. Removes sn_flush_device_list and adds sn_flush_device_common and
sn_flush_device_kernel.
2. Adds a new SAL call to populate a sn_flush_device_common struct per
device, not per widget as previously done.
3. Correctly initializes each device's sn_flush_device_kernel spinlock_t
struct (before it was only doing each widget's first device).
Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/sn')
| -rw-r--r-- | include/asm-ia64/sn/sn_sal.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h index 4363ed3598ad..8b9e10e7cdba 100644 --- a/include/asm-ia64/sn/sn_sal.h +++ b/include/asm-ia64/sn/sn_sal.h @@ -75,7 +75,8 @@ #define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055 #define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056 #define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057 -#define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 +#define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 // deprecated +#define SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST 0x0200005a #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060 #define SN_SAL_BTE_RECOVER 0x02000061 |