Revert "powerpc: Remove unused FW_FEATURE_NATIVE references"

This reverts commit 79b74a68486765a4fe685ac4069bc71366c538f5.

It broke booting on IBM Cell machines when the kernel is also built with
CONFIG_PPC_PS3=y.

That's because FW_FEATURE_NATIVE_ALWAYS = 0 does have an important
effect, which is to clear the PS3 ALWAYS features from
FW_FEATURE_ALWAYS.

Note that CONFIG_PPC_NATIVE has since been renamed
CONFIG_PPC_HASH_MMU_NATIVE.

Fixes: 79b74a684867 ("powerpc: Remove unused FW_FEATURE_NATIVE references")
Cc: stable@vger.kernel.org # v5.17+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220823115952.1203106-1-mpe@ellerman.id.au

diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 398e0b5..ed6db13 100644 (file)
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -83,6 +83,8 @@ enum {
        FW_FEATURE_POWERNV_ALWAYS = 0,
        FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
        FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
+       FW_FEATURE_NATIVE_POSSIBLE = 0,
+       FW_FEATURE_NATIVE_ALWAYS = 0,
        FW_FEATURE_POSSIBLE =
 #ifdef CONFIG_PPC_PSERIES
                FW_FEATURE_PSERIES_POSSIBLE |
@@ -92,6 +94,9 @@ enum {
 #endif
 #ifdef CONFIG_PPC_PS3
                FW_FEATURE_PS3_POSSIBLE |
+#endif
+#ifdef CONFIG_PPC_HASH_MMU_NATIVE
+               FW_FEATURE_NATIVE_ALWAYS |
 #endif
                0,
        FW_FEATURE_ALWAYS =
@@ -103,6 +108,9 @@ enum {
 #endif
 #ifdef CONFIG_PPC_PS3
                FW_FEATURE_PS3_ALWAYS &
+#endif
+#ifdef CONFIG_PPC_HASH_MMU_NATIVE
+               FW_FEATURE_NATIVE_ALWAYS &
 #endif
                FW_FEATURE_POSSIBLE,