From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from jdl.com (colo.jdl.com [66.118.10.122]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 51FAE67B9E for ; Sun, 18 Jun 2006 08:52:48 +1000 (EST) Received: from jdl (helo=jdl.com) by jdl.com with local-esmtp (Exim 4.44) id 1Frjem-0004Ou-2S for linuxppc-dev@ozlabs.org; Sat, 17 Jun 2006 17:52:45 -0500 To: linuxppc-dev@ozlabs.org Subject: [PATCH 4/9 v3] Add starting of secondary 86xx CPUs. Date: Sat, 17 Jun 2006 17:52:44 -0500 From: Jon Loeliger Message-Id: List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Clear the high BATS during load_up_mmu if FTR_HAS_HIGH_BATS. Allow just a bit more time for secondary CPUs to phone home. Signed-off-by: Wei Zhang Signed-off-by: Haiying Wang Signed-off-by: Jon Loeliger --- arch/powerpc/kernel/head_32.S | 14 +++++++++++++- arch/powerpc/kernel/smp.c | 2 +- arch/powerpc/mm/ppc_mmu_32.c | 4 ++-- 3 files changed, 16 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index a0579e8..b25b259 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -973,6 +973,13 @@ __secondary_start_gemini: b __secondary_start #endif /* CONFIG_GEMINI */ + .globl __secondary_start_mpc86xx +__secondary_start_mpc86xx: + mfspr r3, SPRN_PIR + stw r3, __secondary_hold_acknowledge@l(0) + mr r24, r3 /* cpu # */ + b __secondary_start + .globl __secondary_start_pmac_0 __secondary_start_pmac_0: /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */ @@ -1088,7 +1095,12 @@ load_up_mmu: LOAD_BAT(1,r3,r4,r5) LOAD_BAT(2,r3,r4,r5) LOAD_BAT(3,r3,r4,r5) - +BEGIN_FTR_SECTION + LOAD_BAT(4,r3,r4,r5) + LOAD_BAT(5,r3,r4,r5) + LOAD_BAT(6,r3,r4,r5) + LOAD_BAT(7,r3,r4,r5) +END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS) blr /* diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 530f7db..c5d179d 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -492,7 +492,7 @@ int __devinit __cpu_up(unsigned int cpu) * -- Cort */ if (system_state < SYSTEM_RUNNING) - for (c = 5000; c && !cpu_callin_map[cpu]; c--) + for (c = 50000; c && !cpu_callin_map[cpu]; c--) udelay(100); #ifdef CONFIG_HOTPLUG_CPU else diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index ab5cd72..2ed43a4 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -43,13 +43,13 @@ unsigned long _SDR1; union ubat { /* BAT register values to be loaded */ BAT bat; u32 word[2]; -} BATS[4][2]; /* 4 pairs of IBAT, DBAT */ +} BATS[8][2]; /* 8 pairs of IBAT, DBAT */ struct batrange { /* stores address ranges mapped by BATs */ unsigned long start; unsigned long limit; unsigned long phys; -} bat_addrs[4]; +} bat_addrs[8]; /* * Return PA for this VA if it is mapped by a BAT, or 0