[PATCH v3 1/3] powerpc/pseries: Move H_WATCHDOG definitions to a common header

The H_WATCHDOG input and output definitions are currently local to the
pseries watchdog driver. The next patch in this series also needs these
definitions to issue H_WATCHDOG hypercalls outside the watchdog driver.

Move the H_WATCHDOG definitions to a new common header,
asm/papr-watchdog.h, so they can be shared without duplicating the
PAPR watchdog definitions.

No functional changes.

Cc: [email protected]
Suggested-by: Ritesh Harjani (IBM) <[email protected]>
Signed-off-by: Sourabh Jain <[email protected]>
---
 arch/powerpc/include/asm/papr-watchdog.h | 58 ++++++++++++++++++++++++
 drivers/watchdog/pseries-wdt.c           | 53 +---------------------
 2 files changed, 59 insertions(+), 52 deletions(-)
 create mode 100644 arch/powerpc/include/asm/papr-watchdog.h

diff --git a/arch/powerpc/include/asm/papr-watchdog.h b/arch/powerpc/include/asm/papr-watchdog.h
new file mode 100644
index 000000000000..308ffb73932d
--- /dev/null
+++ b/arch/powerpc/include/asm/papr-watchdog.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _ASM_POWERPC_PAPR_WATCHDOG_H
+#define _ASM_POWERPC_PAPR_WATCHDOG_H
+
+/*
+ * H_WATCHDOG Input
+ *
+ * R4: "flags":
+ *
+ *         Bits 48-55: "operation"
+ */
+#define PSERIES_WDTF_OP_START	0x100UL		/* start timer */
+#define PSERIES_WDTF_OP_STOP	0x200UL		/* stop timer */
+#define PSERIES_WDTF_OP_QUERY	0x300UL		/* query timer capabilities */
+
+/*
+ *         Bits 56-63: "timeoutAction" (for "Start Watchdog" only)
+ */
+#define PSERIES_WDTF_ACTION_HARD_POWEROFF	0x1UL	/* poweroff */
+#define PSERIES_WDTF_ACTION_HARD_RESTART	0x2UL	/* restart */
+#define PSERIES_WDTF_ACTION_DUMP_RESTART	0x3UL	/* dump + restart */
+
+/*
+ * H_WATCHDOG Output
+ *
+ * R3: Return code
+ *
+ *     H_SUCCESS    The operation completed.
+ *
+ *     H_BUSY	    The hypervisor is too busy; retry the operation.
+ *
+ *     H_PARAMETER  The given "flags" are somehow invalid.  Either the
+ *                  "operation" or "timeoutAction" is invalid, or a
+ *                  reserved bit is set.
+ *
+ *     H_P2         The given "watchdogNumber" is zero or exceeds the
+ *                  supported maximum value.
+ *
+ *     H_P3         The given "timeoutInMs" is below the supported
+ *                  minimum value.
+ *
+ *     H_NOOP       The given "watchdogNumber" is already stopped.
+ *
+ *     H_HARDWARE   The operation failed for ineffable reasons.
+ *
+ *     H_FUNCTION   The H_WATCHDOG hypercall is not supported by this
+ *                  hypervisor.
+ *
+ * R4:
+ *
+ * - For the "Query Watchdog Capabilities" operation, a 64-bit
+ *   structure:
+ */
+#define PSERIES_WDTQ_MIN_TIMEOUT(cap)	(((cap) >> 48) & 0xffff)
+#define PSERIES_WDTQ_MAX_NUMBER(cap)	(((cap) >> 32) & 0xffff)
+
+#endif /* _ASM_POWERPC_PAPR_WATCHDOG_H */
diff --git a/drivers/watchdog/pseries-wdt.c b/drivers/watchdog/pseries-wdt.c
index 48d67f7c972a..e97b943e1d3c 100644
--- a/drivers/watchdog/pseries-wdt.c
+++ b/drivers/watchdog/pseries-wdt.c
@@ -12,61 +12,10 @@
 #include <linux/platform_device.h>
 #include <linux/time64.h>
 #include <linux/watchdog.h>
+#include <asm/papr-watchdog.h>
 
 #define DRV_NAME "pseries-wdt"
 
-/*
- * H_WATCHDOG Input
- *
- * R4: "flags":
- *
- *         Bits 48-55: "operation"
- */
-#define PSERIES_WDTF_OP_START	0x100UL		/* start timer */
-#define PSERIES_WDTF_OP_STOP	0x200UL		/* stop timer */
-#define PSERIES_WDTF_OP_QUERY	0x300UL		/* query timer capabilities */
-
-/*
- *         Bits 56-63: "timeoutAction" (for "Start Watchdog" only)
- */
-#define PSERIES_WDTF_ACTION_HARD_POWEROFF	0x1UL	/* poweroff */
-#define PSERIES_WDTF_ACTION_HARD_RESTART	0x2UL	/* restart */
-#define PSERIES_WDTF_ACTION_DUMP_RESTART	0x3UL	/* dump + restart */
-
-/*
- * H_WATCHDOG Output
- *
- * R3: Return code
- *
- *     H_SUCCESS    The operation completed.
- *
- *     H_BUSY	    The hypervisor is too busy; retry the operation.
- *
- *     H_PARAMETER  The given "flags" are somehow invalid.  Either the
- *                  "operation" or "timeoutAction" is invalid, or a
- *                  reserved bit is set.
- *
- *     H_P2         The given "watchdogNumber" is zero or exceeds the
- *                  supported maximum value.
- *
- *     H_P3         The given "timeoutInMs" is below the supported
- *                  minimum value.
- *
- *     H_NOOP       The given "watchdogNumber" is already stopped.
- *
- *     H_HARDWARE   The operation failed for ineffable reasons.
- *
- *     H_FUNCTION   The H_WATCHDOG hypercall is not supported by this
- *                  hypervisor.
- *
- * R4:
- *
- * - For the "Query Watchdog Capabilities" operation, a 64-bit
- *   structure:
- */
-#define PSERIES_WDTQ_MIN_TIMEOUT(cap)	(((cap) >> 48) & 0xffff)
-#define PSERIES_WDTQ_MAX_NUMBER(cap)	(((cap) >> 32) & 0xffff)
-
 static const unsigned long pseries_wdt_action[] = {
 	[0] = PSERIES_WDTF_ACTION_HARD_POWEROFF,
 	[1] = PSERIES_WDTF_ACTION_HARD_RESTART,
-- 
2.52.0