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From:   Alexey Makhalov <amakhalov@vmware.com>
To:     linux-kernel@vger.kernel.org, virtualization@lists.linux.dev,
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        Alexey Makhalov <amakhalov@vmware.com>
Subject: [PATCH 3/6] ptp/vmware: Use vmware_hypercall API
Date:   Wed, 22 Nov 2023 15:30:55 -0800
Message-Id: <20231122233058.185601-11-amakhalov@vmware.com>
In-Reply-To: <20231122233058.185601-1-amakhalov@vmware.com>
References: <20231122233058.185601-1-amakhalov@vmware.com>
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Switch from VMWARE_HYPERCALL macro to vmware_hypercall API.
Eliminate arch specific code. No functional changes intended.

Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
---
 drivers/ptp/ptp_vmw.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/ptp/ptp_vmw.c b/drivers/ptp/ptp_vmw.c
index 27c5547aa8a9..e5bb521b9b82 100644
--- a/drivers/ptp/ptp_vmw.c
+++ b/drivers/ptp/ptp_vmw.c
@@ -14,7 +14,6 @@
 #include <asm/hypervisor.h>
 #include <asm/vmware.h>
 
-#define VMWARE_MAGIC 0x564D5868
 #define VMWARE_CMD_PCLK(nr) ((nr << 16) | 97)
 #define VMWARE_CMD_PCLK_GETTIME VMWARE_CMD_PCLK(0)
 
@@ -24,15 +23,10 @@ static struct ptp_clock *ptp_vmw_clock;
 
 static int ptp_vmw_pclk_read(u64 *ns)
 {
-	u32 ret, nsec_hi, nsec_lo, unused1, unused2, unused3;
-
-	asm volatile (VMWARE_HYPERCALL :
-		"=a"(ret), "=b"(nsec_hi), "=c"(nsec_lo), "=d"(unused1),
-		"=S"(unused2), "=D"(unused3) :
-		"a"(VMWARE_MAGIC), "b"(0),
-		"c"(VMWARE_CMD_PCLK_GETTIME), "d"(0) :
-		"memory");
+	u32 ret, nsec_hi, nsec_lo;
 
+	ret = vmware_hypercall3(VMWARE_CMD_PCLK_GETTIME, 0,
+				&nsec_hi, &nsec_lo);
 	if (ret == 0)
 		*ns = ((u64)nsec_hi << 32) | nsec_lo;
 	return ret;
-- 
2.39.0