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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-07-08 16:37:08 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-17 16:42:45 +1000 |
| commit | d74361881f0dfe5f9dcac37d1b753a15a2345d8c (patch) | |
| tree | 49713088a40028b016f84e4fb226b855a76b8f8b /arch/powerpc/sysdev/xics/xics-common.c | |
| parent | 1d607bb3bd60f404d1ceb0d6ebceadf261068422 (diff) | |
powerpc/xics: Add ICP OPAL backend
This adds a new XICS backend that uses OPAL calls, which can be
used when we don't have native support for the platform interrupt
controller.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev/xics/xics-common.c')
| -rw-r--r-- | arch/powerpc/sysdev/xics/xics-common.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index 47e43b7b076b..a795a5f0301c 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -404,8 +404,11 @@ void __init xics_init(void) /* Fist locate ICP */ if (firmware_has_feature(FW_FEATURE_LPAR)) rc = icp_hv_init(); - if (rc < 0) + if (rc < 0) { rc = icp_native_init(); + if (rc == -ENODEV) + rc = icp_opal_init(); + } if (rc < 0) { pr_warning("XICS: Cannot find a Presentation Controller !\n"); return; |