From: Michael Ellerman <mpe@ellerman.id.au>
To: gregkh@linuxfoundation.org
Cc: stable@vger.kernel.org, linuxppc-dev@ozlabs.org
Subject: [PATCH stable 4.9 08/23] powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
Date: Sat, 2 Jun 2018 21:08:53 +1000 [thread overview]
Message-ID: <20180602110908.29773-9-mpe@ellerman.id.au> (raw)
In-Reply-To: <20180602110908.29773-1-mpe@ellerman.id.au>
commit 921bc6cf807ceb2ab8005319cf39f33494d6b100 upstream.
We might have migrated to a machine that uses a different flush type,
or doesn't need flushing at all.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/platforms/pseries/mobility.c | 3 +++
arch/powerpc/platforms/pseries/pseries.h | 2 ++
arch/powerpc/platforms/pseries/setup.c | 2 +-
3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 6a5e7467445c..3784a7abfcc8 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -314,6 +314,9 @@ void post_mobility_fixup(void)
printk(KERN_ERR "Post-mobility device tree update "
"failed: %d\n", rc);
+ /* Possibly switch to a new RFI flush type */
+ pseries_setup_rfi_flush();
+
return;
}
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index b1be7b713fe6..62ff57cf6c24 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -79,4 +79,6 @@ extern struct pci_controller_ops pseries_pci_controller_ops;
unsigned long pseries_memory_block_size(void);
+void pseries_setup_rfi_flush(void);
+
#endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 626bf1ce1d80..483aa7a70d0a 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -450,7 +450,7 @@ static void __init find_and_init_phbs(void)
of_pci_check_probe_only();
}
-static void pseries_setup_rfi_flush(void)
+void pseries_setup_rfi_flush(void)
{
struct h_cpu_char_result result;
enum l1d_flush_type types;
--
2.14.1
next prev parent reply other threads:[~2018-06-02 11:09 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-02 11:08 [PATCH stable 4.9 00/23] powerpc backports for 4.9 Michael Ellerman
2018-06-02 11:08 ` [PATCH stable 4.9 01/23] powerpc/rfi-flush: Move out of HARDLOCKUP_DETECTOR #ifdef Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Move out of HARDLOCKUP_DETECTOR #ifdef" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 02/23] powerpc/pseries: Support firmware disable of RFI flush Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Support firmware disable of RFI flush" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 03/23] powerpc/powernv: Support firmware disable of RFI flush Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/powernv: Support firmware disable of RFI flush" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 04/23] powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 05/23] powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 06/23] powerpc/rfi-flush: Always enable fallback flush on pseries Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Always enable fallback flush on pseries" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 07/23] powerpc/rfi-flush: Differentiate enabled and patched flush types Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Differentiate enabled and patched flush types" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` Michael Ellerman [this message]
2018-06-02 13:35 ` Patch "powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration" " gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 09/23] powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 10/23] powerpc: Add security feature flags for Spectre/Meltdown Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc: Add security feature flags for Spectre/Meltdown" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 11/23] powerpc/pseries: Set or clear security feature flags Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Set or clear security feature flags" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 12/23] powerpc/powernv: Set or clear security feature flags Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/powernv: Set or clear security feature flags" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 13/23] powerpc/64s: Move cpu_show_meltdown() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Move cpu_show_meltdown()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:08 ` [PATCH stable 4.9 14/23] powerpc/64s: Enhance the information in cpu_show_meltdown() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Enhance the information in cpu_show_meltdown()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 15/23] powerpc/powernv: Use the security flags in pnv_setup_rfi_flush() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/powernv: Use the security flags in pnv_setup_rfi_flush()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 16/23] powerpc/pseries: Use the security flags in pseries_setup_rfi_flush() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Use the security flags in pseries_setup_rfi_flush()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 17/23] powerpc/64s: Wire up cpu_show_spectre_v1() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Wire up cpu_show_spectre_v1()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 18/23] powerpc/64s: Wire up cpu_show_spectre_v2() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Wire up cpu_show_spectre_v2()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 19/23] powerpc/pseries: Fix clearing of security feature flags Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Fix clearing of security feature flags" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 20/23] powerpc: Move default security feature flags Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc: Move default security feature flags" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 21/23] powerpc/pseries: Restore default security feature flags on setup Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/pseries: Restore default security feature flags on setup" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 22/23] powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Fix section mismatch warnings from setup_rfi_flush()" has been added to the 4.9-stable tree gregkh
2018-06-02 11:09 ` [PATCH stable 4.9 23/23] powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit Michael Ellerman
2018-06-02 13:35 ` Patch "powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit" has been added to the 4.9-stable tree gregkh
2018-06-02 13:30 ` [PATCH stable 4.9 00/23] powerpc backports for 4.9 Greg KH
2018-06-03 10:22 ` Michael Ellerman
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