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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2021-06-18 13:45:53 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2021-06-21 21:15:58 +1000
commitaa9c5adf2f61da39c92280d9336e091852e292ff (patch)
tree68ec33035c8024e57c2b1ea64e7612a7b9721f09 /arch/powerpc/include/asm/xics.h
parent0d0f9e5f2fa7aacf22892078a1065fa5d0ce941b (diff)
powerpc/xics: Add a native ICS backend for microwatt
This is a simple native ICS backend that matches the layout of the Microwatt implementation of ICS. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org> [mpe: Add empty ics_native_init() to unbreak non-microwatt builds] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> fixup-ics Link: https://lore.kernel.org/r/YMwW8cxrwB2W5EUN@thinks.paulus.ozlabs.org
Diffstat (limited to 'arch/powerpc/include/asm/xics.h')
-rw-r--r--arch/powerpc/include/asm/xics.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/xics.h b/arch/powerpc/include/asm/xics.h
index 8e903b3f9c24..d9cf192368ad 100644
--- a/arch/powerpc/include/asm/xics.h
+++ b/arch/powerpc/include/asm/xics.h
@@ -65,8 +65,12 @@ struct icp_ops {
extern const struct icp_ops *icp_ops;
+#ifdef CONFIG_PPC_ICS_NATIVE
/* Native ICS */
extern int ics_native_init(void);
+#else
+static inline int ics_native_init(void) { return -ENODEV; }
+#endif
/* RTAS ICS */
#ifdef CONFIG_PPC_ICS_RTAS