From 03ae5768b6110ebaa97dc3e7abf1c3d8bec5f874 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Fri, 15 Feb 2008 12:00:23 +0100 Subject: x86: use ELF section to list CPU vendor specific code Replace the hardcoded list of initialization functions for each CPU vendor by a list in an ELF section, which is read at initialization in arch/x86/kernel/cpu/cpu.c to fill the cpu_devs[] array. The ELF section, named .x86cpuvendor.init, is reclaimed after boot, and contains entries of type "struct cpu_vendor_dev" which associates a vendor number with a pointer to a "struct cpu_dev" structure. This first modification allows to remove all the VENDOR_init_cpu() functions. This patch also removes the hardcoded calls to early_init_amd() and early_init_intel(). Instead, we add a "c_early_init" member to the cpu_dev structure, which is then called if not NULL by the generic CPU initialization code. Unfortunately, in early_cpu_detect(), this_cpu is not yet set, so we have to use the cpu_devs[] array directly. This patch is part of the Linux Tiny project, and is needed for further patch that will allow to disable compilation of unused CPU support code. Signed-off-by: Thomas Petazzoni Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/cpu/umc.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'arch/x86/kernel/cpu/umc.c') diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c index a7a4e75bdcd7..b1acf08245fb 100644 --- a/arch/x86/kernel/cpu/umc.c +++ b/arch/x86/kernel/cpu/umc.c @@ -19,8 +19,5 @@ static struct cpu_dev umc_cpu_dev __cpuinitdata = { }, }; -int __init umc_init_cpu(void) -{ - cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev; - return 0; -} +cpu_vendor_dev_register(X86_VENDOR_UMC, &umc_cpu_dev); + -- cgit