powerpc/mm: Introduce MMU features
We're soon running out of CPU features and I need to add some new
ones for various MMU related bits, so this patch separates the MMU
features from the CPU features. I moved over the 32-bit MMU related
ones, added base features for MMU type families, but didn't move
over any 64-bit only feature yet.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 65639a4..e619d42 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -567,6 +567,11 @@
do_feature_fixups(cur_cpu_spec->cpu_features,
start64, start64 + size64);
+ start64 = find_section64(v64->hdr, "__mmu_ftr_fixup", &size64);
+ if (start64)
+ do_feature_fixups(cur_cpu_spec->mmu_features,
+ start64, start64 + size64);
+
start64 = find_section64(v64->hdr, "__fw_ftr_fixup", &size64);
if (start64)
do_feature_fixups(powerpc_firmware_features,
@@ -583,6 +588,11 @@
do_feature_fixups(cur_cpu_spec->cpu_features,
start32, start32 + size32);
+ start32 = find_section32(v32->hdr, "__mmu_ftr_fixup", &size32);
+ if (start32)
+ do_feature_fixups(cur_cpu_spec->mmu_features,
+ start32, start32 + size32);
+
#ifdef CONFIG_PPC64
start32 = find_section32(v32->hdr, "__fw_ftr_fixup", &size32);
if (start32)