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[IA64-SGI] Add PROM feature set for device flush list

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Introduce PRF_DEVICE_FLUSH_LIST flag for older PROMs.

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Prarit Bhargava 2006-01-25 18:51:14 -05:00 committed by Tony Luck
parent 139366a093
commit 61d67f2e07
2 changed files with 22 additions and 21 deletions
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36
arch/ia64/sn/kernel/io_init.c
View File

@ -10,6 +10,7 @@
#include <linux/nodemask.h>
#include <asm/sn/types.h>
#include <asm/sn/addrs.h>
#include <asm/sn/sn_feature_sets.h>
#include <asm/sn/geo.h>
#include <asm/sn/io.h>
#include <asm/sn/pcibr_provider.h>
@ -173,8 +174,8 @@ sn_pcidev_info_get(struct pci_dev *dev)
*/
static u8 war_implemented = 0;
static void sn_device_fixup_war(u64 nasid, u64 widget, int device,
struct sn_flush_device_common *common)
static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
struct sn_flush_device_common *common)
{
struct sn_flush_device_war *war_list;
struct sn_flush_device_war *dev_entry;
@ -198,8 +199,9 @@ static void sn_device_fixup_war(u64 nasid, u64 widget, int device,
dev_entry = war_list + device;
memcpy(common,dev_entry, sizeof(*common));
kfree(war_list);
return isrv.status;
}
/*
@ -279,23 +281,21 @@ static void sn_fixup_ionodes(void)
memset(dev_entry->common, 0x0, sizeof(struct
sn_flush_device_common));
status = sal_get_device_dmaflush_list(nasid,
widget,
device,
if (sn_prom_feature_available(
PRF_DEVICE_FLUSH_LIST))
status = sal_get_device_dmaflush_list(
nasid,
widget,
device,
(u64)(dev_entry->common));
if (status) {
if (sn_sal_rev() < 0x0450) {
/* shortlived WAR for older
* PROM images
*/
sn_device_fixup_war(nasid,
widget,
device,
else
status = sn_device_fixup_war(nasid,
widget,
device,
dev_entry->common);
}
else
BUG();
}
if (status != SALRET_OK)
panic("SAL call failed: %s\n",
ia64_sal_strerror(status));
spin_lock_init(&dev_entry->sfdl_flush_lock);
}

7
include/asm-ia64/sn/sn_feature_sets.h
View File

@ -31,7 +31,8 @@ extern int sn_prom_feature_available(int id);
* ...
*/
#define PRF_PAL_CACHE_FLUSH_SAFE 0
#define PRF_PAL_CACHE_FLUSH_SAFE 0
#define PRF_DEVICE_FLUSH_LIST 1
@ -48,7 +49,7 @@ extern int sn_prom_feature_available(int id);
*
* By default, features are disabled unless explicitly enabled.
*/
#define OSF_MCA_SLV_TO_OS_INIT_SLV 0
#define OSF_FEAT_LOG_SBES 1
#define OSF_MCA_SLV_TO_OS_INIT_SLV 0
#define OSF_FEAT_LOG_SBES 1
#endif /* _ASM_IA64_SN_FEATURE_SETS_H */