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Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
-rw-r--r--arch/powerpc/kernel/prom_init.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index cbc605cfdec0..f279a1f58fa7 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -169,6 +169,7 @@ static unsigned long __prombss prom_tce_alloc_end;
#ifdef CONFIG_PPC_PSERIES
static bool __prombss prom_radix_disable;
+static bool __prombss prom_radix_gtse_disable;
static bool __prombss prom_xive_disable;
#endif
@@ -823,6 +824,12 @@ static void __init early_cmdline_parse(void)
if (prom_radix_disable)
prom_debug("Radix disabled from cmdline\n");
+ opt = prom_strstr(prom_cmd_line, "radix_hcall_invalidate=on");
+ if (opt) {
+ prom_radix_gtse_disable = true;
+ prom_debug("Radix GTSE disabled from cmdline\n");
+ }
+
opt = prom_strstr(prom_cmd_line, "xive=off");
if (opt) {
prom_xive_disable = true;
@@ -1285,10 +1292,8 @@ static void __init prom_parse_platform_support(u8 index, u8 val,
prom_parse_mmu_model(val & OV5_FEAT(OV5_MMU_SUPPORT), support);
break;
case OV5_INDX(OV5_RADIX_GTSE): /* Radix Extensions */
- if (val & OV5_FEAT(OV5_RADIX_GTSE)) {
- prom_debug("Radix - GTSE supported\n");
- support->radix_gtse = true;
- }
+ if (val & OV5_FEAT(OV5_RADIX_GTSE))
+ support->radix_gtse = !prom_radix_gtse_disable;
break;
case OV5_INDX(OV5_XIVE_SUPPORT): /* Interrupt mode */
prom_parse_xive_model(val & OV5_FEAT(OV5_XIVE_SUPPORT),