From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christophe Leroy Subject: [PATCH v8 0/8] powerpc: switch VDSO to C implementation Date: Tue, 28 Apr 2020 13:16:46 +0000 (UTC) Message-ID: Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , nathanl@linux.ibm.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, arnd@arndb.de, tglx@linutronix.de, vincenzo.frascino@arm.com, luto@kernel.org, linux-arch@vger.kernel.org List-Id: linux-arch.vger.kernel.org This is the seventh version of a series to switch powerpc VDSO to generic C implementation. Main changes since v7 are: - Added gettime64 on PPC32 This series applies on today's powerpc/merge branch. See the last patches for details on changes and performance. Christophe Leroy (8): powerpc/vdso64: Switch from __get_datapage() to get_datapage inline macro powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() powerpc/vdso: Remove unused \tmp param in __get_datapage() powerpc/processor: Move cpu_relax() into asm/vdso/processor.h powerpc/vdso: Prepare for switching VDSO to generic C implementation. powerpc/vdso: Switch VDSO to generic C implementation. lib/vdso: force inlining of __cvdso_clock_gettime_common() powerpc/vdso: Provide __kernel_clock_gettime64() on vdso32 arch/powerpc/Kconfig | 2 + arch/powerpc/include/asm/clocksource.h | 7 + arch/powerpc/include/asm/processor.h | 10 +- arch/powerpc/include/asm/vdso/clocksource.h | 7 + arch/powerpc/include/asm/vdso/gettimeofday.h | 175 +++++++++++ arch/powerpc/include/asm/vdso/processor.h | 23 ++ arch/powerpc/include/asm/vdso/vsyscall.h | 25 ++ arch/powerpc/include/asm/vdso_datapage.h | 50 ++-- arch/powerpc/kernel/asm-offsets.c | 49 +-- arch/powerpc/kernel/time.c | 91 +----- arch/powerpc/kernel/vdso.c | 58 +--- arch/powerpc/kernel/vdso32/Makefile | 32 +- arch/powerpc/kernel/vdso32/cacheflush.S | 2 +- arch/powerpc/kernel/vdso32/config-fake32.h | 34 +++ arch/powerpc/kernel/vdso32/datapage.S | 7 +- arch/powerpc/kernel/vdso32/gettimeofday.S | 300 +------------------ arch/powerpc/kernel/vdso32/vdso32.lds.S | 8 +- arch/powerpc/kernel/vdso32/vgettimeofday.c | 35 +++ arch/powerpc/kernel/vdso64/Makefile | 23 +- arch/powerpc/kernel/vdso64/cacheflush.S | 9 +- arch/powerpc/kernel/vdso64/datapage.S | 31 +- arch/powerpc/kernel/vdso64/gettimeofday.S | 243 +-------------- arch/powerpc/kernel/vdso64/vdso64.lds.S | 7 +- arch/powerpc/kernel/vdso64/vgettimeofday.c | 29 ++ lib/vdso/gettimeofday.c | 2 +- 25 files changed, 460 insertions(+), 799 deletions(-) create mode 100644 arch/powerpc/include/asm/clocksource.h create mode 100644 arch/powerpc/include/asm/vdso/clocksource.h create mode 100644 arch/powerpc/include/asm/vdso/gettimeofday.h create mode 100644 arch/powerpc/include/asm/vdso/processor.h create mode 100644 arch/powerpc/include/asm/vdso/vsyscall.h create mode 100644 arch/powerpc/kernel/vdso32/config-fake32.h create mode 100644 arch/powerpc/kernel/vdso32/vgettimeofday.c create mode 100644 arch/powerpc/kernel/vdso64/vgettimeofday.c -- 2.25.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pegase1.c-s.fr ([93.17.236.30]:16939 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726764AbgD1NQs (ORCPT ); Tue, 28 Apr 2020 09:16:48 -0400 Message-ID: From: Christophe Leroy Subject: [PATCH v8 0/8] powerpc: switch VDSO to C implementation Date: Tue, 28 Apr 2020 13:16:46 +0000 (UTC) Sender: linux-arch-owner@vger.kernel.org List-ID: To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , nathanl@linux.ibm.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, arnd@arndb.de, tglx@linutronix.de, vincenzo.frascino@arm.com, luto@kernel.org, linux-arch@vger.kernel.org Message-ID: <20200428131646.obr9atVmMACkMIGUJ3LDcg9Rm7kcrCbeEY6DdQiniZk@z> This is the seventh version of a series to switch powerpc VDSO to generic C implementation. Main changes since v7 are: - Added gettime64 on PPC32 This series applies on today's powerpc/merge branch. See the last patches for details on changes and performance. Christophe Leroy (8): powerpc/vdso64: Switch from __get_datapage() to get_datapage inline macro powerpc/vdso: Remove __kernel_datapage_offset and simplify __get_datapage() powerpc/vdso: Remove unused \tmp param in __get_datapage() powerpc/processor: Move cpu_relax() into asm/vdso/processor.h powerpc/vdso: Prepare for switching VDSO to generic C implementation. powerpc/vdso: Switch VDSO to generic C implementation. lib/vdso: force inlining of __cvdso_clock_gettime_common() powerpc/vdso: Provide __kernel_clock_gettime64() on vdso32 arch/powerpc/Kconfig | 2 + arch/powerpc/include/asm/clocksource.h | 7 + arch/powerpc/include/asm/processor.h | 10 +- arch/powerpc/include/asm/vdso/clocksource.h | 7 + arch/powerpc/include/asm/vdso/gettimeofday.h | 175 +++++++++++ arch/powerpc/include/asm/vdso/processor.h | 23 ++ arch/powerpc/include/asm/vdso/vsyscall.h | 25 ++ arch/powerpc/include/asm/vdso_datapage.h | 50 ++-- arch/powerpc/kernel/asm-offsets.c | 49 +-- arch/powerpc/kernel/time.c | 91 +----- arch/powerpc/kernel/vdso.c | 58 +--- arch/powerpc/kernel/vdso32/Makefile | 32 +- arch/powerpc/kernel/vdso32/cacheflush.S | 2 +- arch/powerpc/kernel/vdso32/config-fake32.h | 34 +++ arch/powerpc/kernel/vdso32/datapage.S | 7 +- arch/powerpc/kernel/vdso32/gettimeofday.S | 300 +------------------ arch/powerpc/kernel/vdso32/vdso32.lds.S | 8 +- arch/powerpc/kernel/vdso32/vgettimeofday.c | 35 +++ arch/powerpc/kernel/vdso64/Makefile | 23 +- arch/powerpc/kernel/vdso64/cacheflush.S | 9 +- arch/powerpc/kernel/vdso64/datapage.S | 31 +- arch/powerpc/kernel/vdso64/gettimeofday.S | 243 +-------------- arch/powerpc/kernel/vdso64/vdso64.lds.S | 7 +- arch/powerpc/kernel/vdso64/vgettimeofday.c | 29 ++ lib/vdso/gettimeofday.c | 2 +- 25 files changed, 460 insertions(+), 799 deletions(-) create mode 100644 arch/powerpc/include/asm/clocksource.h create mode 100644 arch/powerpc/include/asm/vdso/clocksource.h create mode 100644 arch/powerpc/include/asm/vdso/gettimeofday.h create mode 100644 arch/powerpc/include/asm/vdso/processor.h create mode 100644 arch/powerpc/include/asm/vdso/vsyscall.h create mode 100644 arch/powerpc/kernel/vdso32/config-fake32.h create mode 100644 arch/powerpc/kernel/vdso32/vgettimeofday.c create mode 100644 arch/powerpc/kernel/vdso64/vgettimeofday.c -- 2.25.0