[PATCH v11 2/8] ptp/vmware: Use VMware hypercall API

Alexey Makhalov
2024-06-13T19:17:21Z

Switch from VMWARE_HYPERCALL macro to vmware_hypercall API.
Eliminate arch specific code. No functional changes intended.

Signed-off-by: Alexey Makhalov <alexey.makhalov@broadcom.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 7ec90359428a..20ab05c4daa8 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;
--
2.39.4