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-rw-r--r--arch/powerpc/platforms/powermac/setup.c3
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c13
2 files changed, 13 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 193cc9c39422..0c41f4b005bc 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -76,7 +76,8 @@ int pmac_newworld;
static int current_root_goodness = -1;
-#define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */
+/* sda1 - slightly silly choice */
+#define DEFAULT_ROOT_DEVICE MKDEV(SCSI_DISK0_MAJOR, 1)
sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
EXPORT_SYMBOL(sys_ctrler);
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 918f511837db..d59e8a98a200 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -317,13 +317,22 @@ static void tce_free_pSeriesLP(unsigned long liobn, long tcenum, long tceshift,
static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
{
u64 rc;
+ long rpages = npages;
+ unsigned long limit;
if (!firmware_has_feature(FW_FEATURE_STUFF_TCE))
return tce_free_pSeriesLP(tbl->it_index, tcenum,
tbl->it_page_shift, npages);
- rc = plpar_tce_stuff((u64)tbl->it_index,
- (u64)tcenum << tbl->it_page_shift, 0, npages);
+ do {
+ limit = min_t(unsigned long, rpages, 512);
+
+ rc = plpar_tce_stuff((u64)tbl->it_index,
+ (u64)tcenum << tbl->it_page_shift, 0, limit);
+
+ rpages -= limit;
+ tcenum += limit;
+ } while (rpages > 0 && !rc);
if (rc && printk_ratelimit()) {
printk("tce_freemulti_pSeriesLP: plpar_tce_stuff failed\n");