From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtps.tip.net.au (chilli.pcug.org.au [203.10.76.44]) by ozlabs.org (Postfix) with ESMTP id AC0CADDE16 for ; Tue, 18 Sep 2007 17:25:24 +1000 (EST) Date: Tue, 18 Sep 2007 17:25:12 +1000 From: Stephen Rothwell To: paulus@samba.org Subject: [PATCH 2/2] [POWERPC] fwnmi is only used on pSeries Message-Id: <20070918172512.6aa5af03.sfr@canb.auug.org.au> In-Reply-To: <20070918172259.dc4172b0.sfr@canb.auug.org.au> References: <20070918172259.dc4172b0.sfr@canb.auug.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: ppc-dev List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This saves 4k on non pSeries builds (except for iSeries where it saves almost 4k). Signed-off-by: Stephen Rothwell --- arch/powerpc/kernel/crash_dump.c | 2 ++ arch/powerpc/kernel/head_64.S | 7 +++++++ 2 files changed, 9 insertions(+), 0 deletions(-) Boot tested on iSeries and POWER5+. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index ffa91d6..29ff77c 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -54,8 +54,10 @@ void __init setup_kdump_trampoline(void) create_trampoline(i); } +#ifdef CONFIG_PPC_PSERIES create_trampoline(__pa(system_reset_fwnmi) - PHYSICAL_START); create_trampoline(__pa(machine_check_fwnmi) - PHYSICAL_START); +#endif /* CONFIG_PPC_PSERIES */ DBG(" <- setup_kdump_trampoline()\n"); } diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 384cc75..22ac245 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -341,6 +341,7 @@ slb_miss_user_pseries: b . /* prevent spec. execution */ #endif /* __DISABLED__ */ +#ifdef CONFIG_PPC_PSERIES /* * Vectors for the FWNMI option. Share common code. */ @@ -358,6 +359,8 @@ machine_check_fwnmi: mtspr SPRN_SPRG1,r13 /* save r13 */ EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(PACA_EXMC, machine_check_common) +#endif /* CONFIG_PPC_PSERIES */ + /*** Common interrupt handlers ***/ STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception) @@ -1012,6 +1015,7 @@ _GLOBAL(do_stab_bolted) initial_stab: .space 4096 +#ifdef CONFIG_PPC_PSERIES /* * Data area reserved for FWNMI option. * This address (0x7000) is fixed by the RPA. @@ -1019,6 +1023,7 @@ initial_stab: .= 0x7000 .globl fwnmi_data_area fwnmi_data_area: +#endif /* CONFIG_PPC_PSERIES */ /* iSeries does not use the FWNMI stuff, so it is safe to put * this here, even if we later allow kernels that will boot on @@ -1043,7 +1048,9 @@ xLparMap: #endif /* CONFIG_PPC_ISERIES */ +#ifdef CONFIG_PPC_PSERIES . = 0x8000 +#endif /* CONFIG_PPC_PSERIES */ /* * On pSeries and most other platforms, secondary processors spin -- 1.5.3.1