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| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2025-08-26 08:17:09 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-09-04 11:23:50 +0200 |
| commit | eb3b66aab72c10632865afaf8e46f4667c21ef7d (patch) | |
| tree | 5c32b31ae04fb99d950d4d3bf5b2197d397baf60 /arch/riscv | |
| parent | ea1a1fa919a5b4f39fa46073e7b3a19b12521f05 (diff) | |
| download | linux-eb3b66aab72c10632865afaf8e46f4667c21ef7d.tar.gz | |
riscv: vdso: Untangle Kconfig logic
On riscv32 the generic vDSO infrastructure is used but without its
time-related functionality. The Kconfig logic to implement this
treats HAVE_GENERIC_VDSO as a synonym for GENERIC_GETTIMEOFDAY.
This works today due to some underlying issues in how the generic vDSO
library works. Some future cleanups will break this logic.
Restructure the Kconfig logic, so HAVE_GENERIC_VDSO refers to the generic
library in general and GENERIC_GETTIMEOFDAY refers to its time-related
functionality.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250826-vdso-cleanups-v1-6-d9b65750e49f@linutronix.de
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index a4b233a0659ed8..e4ac0e833ecfdb 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -52,7 +52,7 @@ config RISCV select ARCH_HAS_SYSCALL_WRAPPER select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN - select ARCH_HAS_VDSO_ARCH_DATA if GENERIC_VDSO_DATA_STORE + select ARCH_HAS_VDSO_ARCH_DATA if HAVE_GENERIC_VDSO select ARCH_KEEP_MEMBLOCK if ACPI select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE if 64BIT && MMU select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX @@ -107,7 +107,7 @@ config RISCV select GENERIC_CPU_VULNERABILITIES select GENERIC_EARLY_IOREMAP select GENERIC_ENTRY - select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO + select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO && 64BIT select GENERIC_IDLE_POLL_SETUP select GENERIC_IOREMAP if MMU select GENERIC_IRQ_IPI if SMP @@ -120,9 +120,9 @@ config RISCV select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD - select GENERIC_TIME_VSYSCALL if MMU && 64BIT - select GENERIC_VDSO_DATA_STORE if MMU - select GENERIC_VDSO_TIME_NS if HAVE_GENERIC_VDSO + select GENERIC_TIME_VSYSCALL if GENERIC_GETTIMEOFDAY + select GENERIC_VDSO_DATA_STORE if HAVE_GENERIC_VDSO + select GENERIC_VDSO_TIME_NS if GENERIC_GETTIMEOFDAY select HARDIRQS_SW_RESEND select HAS_IOPORT if MMU select HAVE_ALIGNED_STRUCT_PAGE @@ -165,7 +165,7 @@ config RISCV select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_FUNCTION_ERROR_INJECTION select HAVE_GCC_PLUGINS - select HAVE_GENERIC_VDSO if MMU && 64BIT + select HAVE_GENERIC_VDSO if MMU select HAVE_IRQ_TIME_ACCOUNTING select HAVE_KERNEL_BZIP2 if !XIP_KERNEL && !EFI_ZBOOT select HAVE_KERNEL_GZIP if !XIP_KERNEL && !EFI_ZBOOT @@ -221,7 +221,7 @@ config RISCV select THREAD_INFO_IN_TASK select TRACE_IRQFLAGS_SUPPORT select UACCESS_MEMCPY if !MMU - select VDSO_GETRANDOM if HAVE_GENERIC_VDSO + select VDSO_GETRANDOM if HAVE_GENERIC_VDSO && 64BIT select USER_STACKTRACE_SUPPORT select ZONE_DMA32 if 64BIT |