Re: [PATCH 2/3] powerpc: book3e: Add ICSWX/ACOP support to Book3e cores like A2

ICSWX is also used by the A2 processor to access coprocessors,
although not all "chips" that contain A2s have coprocessors.
=20
Signed-off-by: Jimi Xenidis <redacted>
---
arch/powerpc/include/asm/cputable.h   |    2 +-
arch/powerpc/include/asm/mmu-book3e.h |    4 ++++
arch/powerpc/include/asm/reg_booke.h  |    4 ++++
arch/powerpc/kernel/cpu_setup_a2.S    |   10 ++++++++--
arch/powerpc/platforms/wsp/Kconfig    |    1 +
5 files changed, 18 insertions(+), 3 deletions(-)
=20

diff --git a/arch/powerpc/include/asm/cputable.h =

index e30442c..7044233 100644

--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h

@@ -437,7 +437,7 @@ extern const char *powerpc_base_platform;

#define CPU_FTRS_COMPATIBLE	(CPU_FTR_USE_TB | CPU_FTR_PPCAS_ARCH_V2)
=20
#define CPU_FTRS_A2 (CPU_FTR_USE_TB | CPU_FTR_SMT | CPU_FTR_DBELL | \
-		     CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN)
+		     CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN | =

=20
#ifdef __powerpc64__
#ifdef CONFIG_PPC_BOOK3E

diff --git a/arch/powerpc/include/asm/mmu-book3e.h =

index 3ea0f9a..06d7f91 100644

--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h

@@ -212,6 +212,10 @@ typedef struct {

	unsigned int	id;
	unsigned int	active;
	unsigned long	vdso_base;
+#ifdef CONFIG_PPC_ICSWX
+	struct spinlock *cop_lockp; /* guard acop and cop_pid */
+	unsigned long acop;	/* mask of enabled coprocessor types */
+#endif /* CONFIG_PPC_ICSWX */