[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v2 0/2] Move percpu code to common
The per-CPU area management code, which is largely common across architectures, is a strong candidate for consolidation into common code. Currently, there is only one architectural-specific aspect: 1. INVALID_PERCPU_AREA: ARM: #define INVALID_PERCPU_AREA (-(long)__per_cpu_start) x86: #define INVALID_PERCPU_AREA (0x8000000000000000UL - (unsigned long)__per_cpu_start) These changes do not affect the functional behavior for x86. For Arm add support of CPU_RESUME_FAILED, CPU_REMOVE and freeing of percpu in the case when system_state != SYS_STATE_suspend. --- Changes in V2: - update the cover letter message. - move CPU_RESUME_FAILED, CPU_REMOVE handling to common code. - rename PERCPU_SECTION to PERCPU_BSS. - drop ARCH_PERCPU_AREA_CHECK and ARCH_CPU_PERCPU_CALLBACK and connected functions. - All other changes look at specific patch. --- Oleksii Kurochko (2): xen: introduce common macros for per-CPU sections defintion xen: move per-cpu area management into common code xen/arch/arm/Makefile | 1 - xen/arch/arm/include/asm/smp.h | 7 +- xen/arch/arm/percpu.c | 85 ----------------------- xen/arch/arm/xen.lds.S | 9 +-- xen/arch/ppc/include/asm/smp.h | 6 -- xen/arch/ppc/stubs.c | 1 - xen/arch/ppc/xen.lds.S | 9 +-- xen/arch/riscv/include/asm/smp.h | 6 -- xen/arch/riscv/stubs.c | 1 - xen/arch/x86/Makefile | 1 - xen/arch/x86/include/asm/Makefile | 1 - xen/arch/x86/include/asm/percpu.h | 16 +++++ xen/arch/x86/percpu.c | 112 ------------------------------ xen/arch/x86/xen.lds.S | 9 +-- xen/common/Makefile | 1 + xen/common/percpu.c | 110 +++++++++++++++++++++++++++++ xen/include/asm-generic/percpu.h | 9 ++- xen/include/xen/percpu.h | 4 ++ xen/include/xen/xen.lds.h | 10 +++ 19 files changed, 153 insertions(+), 245 deletions(-) delete mode 100644 xen/arch/arm/percpu.c create mode 100644 xen/arch/x86/include/asm/percpu.h delete mode 100644 xen/arch/x86/percpu.c create mode 100644 xen/common/percpu.c -- 2.46.1
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