commit 21176fed25c3b0cb17c6c42d71b4e3d68b8f9dd4
author Michael Ellerman <michael@ozlabs.org> Mon Apr 11 21:25:01 2011 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> Wed Apr 27 14:18:27 2011 +1000
tree bd3b54affe6feda4966b688a218bb2bd0bc82611
parent e297d9dd5cfafbeb2e7585bb444941848e030454

powerpc/pci: Split IO vs MMIO indirect access hooks

The goal is to avoid adding overhead to MMIO when only PIO is needed

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/Kconfig

diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 658ffc5..54db9fb 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -154,11 +154,17 @@
 config PPC_INDIRECT_IO
 	bool
 	select GENERIC_IOMAP
-	default n
+
+config PPC_INDIRECT_PIO
+	bool
+	select PPC_INDIRECT_IO
+
+config PPC_INDIRECT_MMIO
+	bool
+	select PPC_INDIRECT_IO
 
 config GENERIC_IOMAP
 	bool
-	default n
 
 source "drivers/cpufreq/Kconfig"