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| author | Oliver O'Halloran <oohall@gmail.com> | 2019-11-01 09:55:22 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-01-23 11:31:21 +0100 |
| commit | 37f6f8e88caef5f69774b82117ca35bdc4a985d8 (patch) | |
| tree | 1d6460e16d49f4cefe5bd1c1d3aedacbaf7c8325 /arch/powerpc/platforms/powernv/setup.c | |
| parent | powerpc/xmon: Allow passing an argument to ppc_md.restart() (diff) | |
| download | linux-37f6f8e88caef5f69774b82117ca35bdc4a985d8.tar.xz linux-37f6f8e88caef5f69774b82117ca35bdc4a985d8.zip | |
powerpc/powernv: Allow manually invoking special reboots
OPAL provides several different kinds of reboot for the kernel to use,
namely forcing a full reboot, platform error reboot and MPIPL. Right now
triggering the alternative resets requires some ad-hoc method such as
triggering a kernel crash and hoping the stars align. It's sometimes handy
to be able to trigger one of these resets directly, so add a way to do
that.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191101085522.3055-2-oohall@gmail.com
Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 83498604d322..11fdae81b5dd 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -233,6 +233,10 @@ static void __noreturn pnv_restart(char *cmd) rc = opal_cec_reboot(); else if (strcmp(cmd, "full") == 0) rc = opal_cec_reboot2(OPAL_REBOOT_FULL_IPL, NULL); + else if (strcmp(cmd, "mpipl") == 0) + rc = opal_cec_reboot2(OPAL_REBOOT_MPIPL, NULL); + else if (strcmp(cmd, "error") == 0) + rc = opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR, NULL); else rc = OPAL_UNSUPPORTED; |