From: Jianyong Wu <jianyong.wu@arm.com>
To: netdev@vger.kernel.org, yangbo.lu@nxp.com,
john.stultz@linaro.org, tglx@linutronix.de, pbonzini@redhat.com,
sean.j.christopherson@intel.com, maz@kernel.org,
richardcochran@gmail.com, Mark.Rutland@arm.com, will@kernel.org,
suzuki.poulose@arm.com, steven.price@arm.com
Cc: justin.he@arm.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, nd@arm.com,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 7/9] ptp: extend input argument for getcrosstimestamp API
Date: Mon, 10 Feb 2020 16:49:04 +0800 [thread overview]
Message-ID: <20200210084906.24870-8-jianyong.wu@arm.com> (raw)
In-Reply-To: <20200210084906.24870-1-jianyong.wu@arm.com>
sometimes we may need tell getcrosstimestamp call back how to perform
itself. Extending input arguments for getcrosstimestamp API to offer more
exquisite control for the operation.
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
---
drivers/clocksource/arm_arch_timer.c | 2 +-
drivers/net/ethernet/intel/e1000e/ptp.c | 3 ++-
drivers/ptp/ptp_chardev.c | 2 +-
drivers/ptp/ptp_kvm.h | 2 +-
drivers/ptp/ptp_kvm_x86.c | 2 +-
include/linux/ptp_clock_kernel.h | 3 ++-
6 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 4e57ab66165c..b1bc8bd198c2 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -1629,7 +1629,7 @@ TIMER_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init);
#if IS_ENABLED(CONFIG_PTP_1588_CLOCK_KVM)
#include <linux/arm-smccc.h>
int kvm_arch_ptp_get_crosststamp(unsigned long *cycle, struct timespec64 *ts,
- struct clocksource **cs)
+ struct clocksource **cs, long *ctx)
{
struct arm_smccc_res hvc_res;
ktime_t ktime_overall;
diff --git a/drivers/net/ethernet/intel/e1000e/ptp.c b/drivers/net/ethernet/intel/e1000e/ptp.c
index eaa5a0fb99f0..7a45d9634962 100644
--- a/drivers/net/ethernet/intel/e1000e/ptp.c
+++ b/drivers/net/ethernet/intel/e1000e/ptp.c
@@ -150,7 +150,8 @@ static int e1000e_phc_get_syncdevicetime(ktime_t *device,
* clock values in ns.
**/
static int e1000e_phc_getcrosststamp(struct ptp_clock_info *ptp,
- struct system_device_crosststamp *xtstamp)
+ struct system_device_crosststamp *xtstamp,
+ NULL)
{
struct e1000_adapter *adapter = container_of(ptp, struct e1000_adapter,
ptp_clock_info);
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
index 9d72ab593f13..09c3f1e5382d 100644
--- a/drivers/ptp/ptp_chardev.c
+++ b/drivers/ptp/ptp_chardev.c
@@ -226,7 +226,7 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg)
err = -EOPNOTSUPP;
break;
}
- err = ptp->info->getcrosststamp(ptp->info, &xtstamp);
+ err = ptp->info->getcrosststamp(ptp->info, &xtstamp, NULL);
if (err)
break;
diff --git a/drivers/ptp/ptp_kvm.h b/drivers/ptp/ptp_kvm.h
index 4bf1802bbeb8..ccceacbe8398 100644
--- a/drivers/ptp/ptp_kvm.h
+++ b/drivers/ptp/ptp_kvm.h
@@ -8,4 +8,4 @@
int kvm_arch_ptp_init(void);
int kvm_arch_ptp_get_clock(struct timespec64 *ts);
int kvm_arch_ptp_get_crosststamp(unsigned long *cycle,
- struct timespec64 *tspec, void *cs);
+ struct timespec64 *tspec, struct clocksource **cs, long *ctx);
diff --git a/drivers/ptp/ptp_kvm_x86.c b/drivers/ptp/ptp_kvm_x86.c
index 6c891d7299c6..ff95d2791078 100644
--- a/drivers/ptp/ptp_kvm_x86.c
+++ b/drivers/ptp/ptp_kvm_x86.c
@@ -53,7 +53,7 @@ int kvm_arch_ptp_get_clock(struct timespec64 *ts)
}
int kvm_arch_ptp_get_crosststamp(unsigned long *cycle, struct timespec64 *tspec,
- struct clocksource **cs)
+ struct clocksource **cs, void *ctx)
{
unsigned long ret;
unsigned int version;
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index c64a1ef87240..29c5fff7aeda 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -133,7 +133,8 @@ struct ptp_clock_info {
int (*gettimex64)(struct ptp_clock_info *ptp, struct timespec64 *ts,
struct ptp_system_timestamp *sts);
int (*getcrosststamp)(struct ptp_clock_info *ptp,
- struct system_device_crosststamp *cts);
+ struct system_device_crosststamp *cts,
+ long *flag);
int (*settime64)(struct ptp_clock_info *p, const struct timespec64 *ts);
int (*enable)(struct ptp_clock_info *ptp,
struct ptp_clock_request *request, int on);
--
2.17.1
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next prev parent reply other threads:[~2020-02-10 8:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 8:48 [RFC PATCH v10 0/9] Enable ptp_kvm for arm/arm64 Jianyong Wu
2020-02-10 8:48 ` [RFC PATCH 1/9] psci: export psci conduit get helper Jianyong Wu
2020-02-10 8:48 ` [RFC PATCH 2/9] ptp: Reorganize ptp_kvm modules to make it arch-independent Jianyong Wu
2020-02-10 8:49 ` [RFC PATCH 3/9] time: Add mechanism to recognize clocksource in time_get_snapshot Jianyong Wu
2020-02-10 8:49 ` [RFC PATCH 4/9] clocksource: Add clocksource id for arm arch counter Jianyong Wu
2020-02-10 8:49 ` [RFC PATCH 5/9] psci: Add hypercall service for ptp_kvm Jianyong Wu
2020-02-10 8:49 ` [RFC PATCH 6/9] ptp: arm/arm64: Enable ptp_kvm for arm/arm64 Jianyong Wu
2020-02-10 8:49 ` Jianyong Wu [this message]
2020-02-10 8:49 ` [RFC PATCH 8/9] arm/arm64: add mechanism to let user choose which counter to return Jianyong Wu
2020-02-10 8:49 ` [RFC PATCH 9/9] arm/arm64: Add kvm capability check extension for ptp_kvm Jianyong Wu
2020-02-17 2:28 ` [RFC PATCH v10 0/9] Enable ptp_kvm for arm/arm64 Jianyong Wu
2020-03-27 9:35 ` Jianyong Wu
2020-03-27 9:36 ` Marc Zyngier
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