From: Scott Cheloha <cheloha@linux.ibm.com>
To: linux-watchdog@vger.kernel.org
Cc: nathanl@linux.ibm.com, wvoigt@us.ibm.com, aik@ozlabs.ru,
Scott Cheloha <cheloha@linux.ibm.com>,
vaishnavi@linux.ibm.com, npiggin@gmail.com, tzungbi@kernel.org,
brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org,
linux@roeck-us.net
Subject: [PATCH v2 2/4] powerpc/pseries: add FW_FEATURE_WATCHDOG flag
Date: Thu, 2 Jun 2022 12:53:51 -0500 [thread overview]
Message-ID: <20220602175353.68942-3-cheloha@linux.ibm.com> (raw)
In-Reply-To: <20220602175353.68942-1-cheloha@linux.ibm.com>
PAPR v2.12 specifies a new optional function set, "hcall-watchdog",
for the /rtas/ibm,hypertas-functions property. The presence of this
function set indicates support for the H_WATCHDOG hypercall.
Check for this function set and, if present, set the new
FW_FEATURE_WATCHDOG flag.
Signed-off-by: Scott Cheloha <cheloha@linux.ibm.com>
---
arch/powerpc/include/asm/firmware.h | 3 ++-
arch/powerpc/platforms/pseries/firmware.c | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 8dddd34b8ecf..398e0b5e485f 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -55,6 +55,7 @@
#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000)
#define FW_FEATURE_FORM2_AFFINITY ASM_CONST(0x0000020000000000)
#define FW_FEATURE_ENERGY_SCALE_INFO ASM_CONST(0x0000040000000000)
+#define FW_FEATURE_WATCHDOG ASM_CONST(0x0000080000000000)
#ifndef __ASSEMBLY__
@@ -76,7 +77,7 @@ enum {
FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR |
FW_FEATURE_RPT_INVALIDATE | FW_FEATURE_FORM2_AFFINITY |
- FW_FEATURE_ENERGY_SCALE_INFO,
+ FW_FEATURE_ENERGY_SCALE_INFO | FW_FEATURE_WATCHDOG,
FW_FEATURE_PSERIES_ALWAYS = 0,
FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
FW_FEATURE_POWERNV_ALWAYS = 0,
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 09c119b2f623..080108d129ed 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -67,6 +67,7 @@ hypertas_fw_features_table[] = {
{FW_FEATURE_PAPR_SCM, "hcall-scm"},
{FW_FEATURE_RPT_INVALIDATE, "hcall-rpt-invalidate"},
{FW_FEATURE_ENERGY_SCALE_INFO, "hcall-energy-scale-info"},
+ {FW_FEATURE_WATCHDOG, "hcall-watchdog"},
};
/* Build up the firmware features bitmask using the contents of
--
2.27.0
next prev parent reply other threads:[~2022-06-02 17:56 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-02 17:53 [PATCH v2 0/4] pseries-wdt: initial support for H_WATCHDOG-based watchdog timers Scott Cheloha
2022-06-02 17:53 ` [PATCH v2 1/4] powerpc/pseries: hvcall.h: add H_WATCHDOG opcode, H_NOOP return code Scott Cheloha
2022-06-21 14:44 ` Nathan Lynch
2022-06-21 17:31 ` Segher Boessenkool
2022-06-21 22:22 ` Nathan Lynch
2022-06-02 17:53 ` Scott Cheloha [this message]
2022-06-21 15:03 ` [PATCH v2 2/4] powerpc/pseries: add FW_FEATURE_WATCHDOG flag Nathan Lynch
2022-06-02 17:53 ` [PATCH v2 3/4] powerpc/pseries: register pseries-wdt device with platform bus Scott Cheloha
2022-06-21 15:30 ` Nathan Lynch
2022-06-24 13:27 ` Michael Ellerman
2022-07-07 15:53 ` Scott Cheloha
2022-06-02 17:53 ` [PATCH v2 4/4] watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timers Scott Cheloha
2022-06-20 6:09 ` Alexey Kardashevskiy
2022-06-21 15:45 ` Nathan Lynch
2022-06-24 13:27 ` Michael Ellerman
2022-06-24 15:31 ` Segher Boessenkool
2022-07-08 5:51 ` Scott Cheloha
2022-06-24 13:51 ` Michael Ellerman
2022-07-07 15:53 ` Scott Cheloha
2022-06-16 1:43 ` [PATCH v2 0/4] pseries-wdt: " Daniel Henrique Barboza
2022-06-16 16:44 ` Tyrel Datwyler
2022-06-16 18:16 ` Daniel Henrique Barboza
2022-06-16 18:33 ` Daniel Henrique Barboza
2022-06-17 12:54 ` Daniel Henrique Barboza
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