diff mbox series

[v14,9/9] powerpc/vdso: Provide __kernel_clock_gettime64() on vdso32

Message ID 20201126131006.2431205-9-mpe@ellerman.id.au (mailing list archive)
State Accepted
Commit d0e3fc69d00d1f50d22d6b6acfc555ccda80ad1e
Headers show
Series [v14,1/9] powerpc/feature: Use CONFIG_PPC64 instead of __powerpc64__ to define possible features | expand

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snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (4c202167192a77481310a3cacae9f12618b92216)
snowpatch_ozlabs/build-ppc64le success Build succeeded
snowpatch_ozlabs/build-ppc64be success Build succeeded
snowpatch_ozlabs/build-ppc64e success Build succeeded
snowpatch_ozlabs/build-pmac32 success Build succeeded
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 42 lines checked
snowpatch_ozlabs/needsstable success Patch has no Fixes tags

Commit Message

Michael Ellerman Nov. 26, 2020, 1:10 p.m. UTC
From: Christophe Leroy <christophe.leroy@csgroup.eu>

Provides __kernel_clock_gettime64() on vdso32. This is the
64 bits version of __kernel_clock_gettime() which is
y2038 compliant.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/44a5541c0355b9eedbac712eabe682118b3a508c.1604426550.git.christophe.leroy@csgroup.eu
---
 arch/powerpc/include/asm/vdso/gettimeofday.h | 2 ++
 arch/powerpc/kernel/vdso32/gettimeofday.S    | 9 +++++++++
 arch/powerpc/kernel/vdso32/vdso32.lds.S      | 1 +
 arch/powerpc/kernel/vdso32/vgettimeofday.c   | 6 ++++++
 4 files changed, 18 insertions(+)

v14: unchanged
diff mbox series

Patch

diff --git a/arch/powerpc/include/asm/vdso/gettimeofday.h b/arch/powerpc/include/asm/vdso/gettimeofday.h
index 6f56a6bce615..0f95569e8fc3 100644
--- a/arch/powerpc/include/asm/vdso/gettimeofday.h
+++ b/arch/powerpc/include/asm/vdso/gettimeofday.h
@@ -187,6 +187,8 @@  int __c_kernel_clock_getres(clockid_t clock_id, struct __kernel_timespec *res,
 #else
 int __c_kernel_clock_gettime(clockid_t clock, struct old_timespec32 *ts,
 			     const struct vdso_data *vd);
+int __c_kernel_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts,
+			       const struct vdso_data *vd);
 int __c_kernel_clock_getres(clockid_t clock_id, struct old_timespec32 *res,
 			    const struct vdso_data *vd);
 #endif
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index fd7b01c51281..a6e29f880e0e 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -35,6 +35,15 @@  V_FUNCTION_BEGIN(__kernel_clock_gettime)
 	cvdso_call __c_kernel_clock_gettime
 V_FUNCTION_END(__kernel_clock_gettime)
 
+/*
+ * Exact prototype of clock_gettime64()
+ *
+ * int __kernel_clock_gettime64(clockid_t clock_id, struct __timespec64 *ts);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_gettime64)
+	cvdso_call __c_kernel_clock_gettime64
+V_FUNCTION_END(__kernel_clock_gettime64)
 
 /*
  * Exact prototype of clock_getres()
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index 51e9b3f3f88a..27a2d03c72d5 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -147,6 +147,7 @@  VERSION
 		__kernel_get_syscall_map;
 		__kernel_gettimeofday;
 		__kernel_clock_gettime;
+		__kernel_clock_gettime64;
 		__kernel_clock_getres;
 		__kernel_time;
 		__kernel_get_tbfreq;
diff --git a/arch/powerpc/kernel/vdso32/vgettimeofday.c b/arch/powerpc/kernel/vdso32/vgettimeofday.c
index 0d4bc217529e..65fb03fb1731 100644
--- a/arch/powerpc/kernel/vdso32/vgettimeofday.c
+++ b/arch/powerpc/kernel/vdso32/vgettimeofday.c
@@ -10,6 +10,12 @@  int __c_kernel_clock_gettime(clockid_t clock, struct old_timespec32 *ts,
 	return __cvdso_clock_gettime32_data(vd, clock, ts);
 }
 
+int __c_kernel_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts,
+			       const struct vdso_data *vd)
+{
+	return __cvdso_clock_gettime_data(vd, clock, ts);
+}
+
 int __c_kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz,
 			    const struct vdso_data *vd)
 {