[IA64-SGI] Add PROM feature set for device flush list (61d67f2e) · Commits · 戴 / test

arch/ia64/sn/kernel/io_init.c

+18 −18

Original line number	Diff line number	Diff line
		@@ -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>
		@@ -173,7 +174,7 @@ 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,
		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;
		@@ -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,
		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,
		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);
		}

+4 −3

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ extern int sn_prom_feature_available(int id);
		*/

		#define PRF_PAL_CACHE_FLUSH_SAFE 0
		#define PRF_DEVICE_FLUSH_LIST 1