From d4fc8fe1f66f46493d3c56436685eef3b5b32b07 Mon Sep 17 00:00:00 2001 From: Milton Miller Date: Tue, 10 May 2011 19:29:28 +0000 Subject: powerpc: Remove stubbed beat smp support I have no idea if the beat hypervisor supports multiple cpus in a partition, but the code has not been touched since these stubs were added in February of 2007 except to move them in April of 2008. These are stubs: start_cpu always returns fail (which is dropped), the message passing and reciving are empty functions, and the top of file comment says "Incomplete". Signed-off-by: Milton Miller Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/cell/Makefile | 1 - arch/powerpc/platforms/cell/beat_interrupt.c | 16 ---- arch/powerpc/platforms/cell/beat_interrupt.h | 3 - arch/powerpc/platforms/cell/beat_smp.c | 107 --------------------------- arch/powerpc/platforms/cell/celleb_setup.c | 4 - 5 files changed, 131 deletions(-) delete mode 100644 arch/powerpc/platforms/cell/beat_smp.c (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index 8839ef6c7188..a4a89350bcfc 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -43,7 +43,6 @@ obj-y += celleb_setup.o \ beat_hvCall.o beat_interrupt.o \ beat_iommu.o -obj-$(CONFIG_SMP) += beat_smp.o obj-$(CONFIG_PPC_UDBG_BEAT) += beat_udbg.o obj-$(CONFIG_SERIAL_TXX9) += celleb_scc_sio.o obj-$(CONFIG_SPU_BASE) += beat_spu_priv1.o diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c index 4cb9e147c307..d46f7e47a1dc 100644 --- a/arch/powerpc/platforms/cell/beat_interrupt.c +++ b/arch/powerpc/platforms/cell/beat_interrupt.c @@ -257,22 +257,6 @@ void __init beatic_init_IRQ(void) irq_set_default_host(beatic_host); } -#ifdef CONFIG_SMP - -/* Nullified to compile with SMP mode */ -void beatic_setup_cpu(int cpu) -{ -} - -void beatic_cause_IPI(int cpu, int mesg) -{ -} - -void beatic_request_IPIs(void) -{ -} -#endif /* CONFIG_SMP */ - void beatic_deinit_IRQ(void) { int i; diff --git a/arch/powerpc/platforms/cell/beat_interrupt.h b/arch/powerpc/platforms/cell/beat_interrupt.h index b470fd0051f1..a7e52f91a078 100644 --- a/arch/powerpc/platforms/cell/beat_interrupt.h +++ b/arch/powerpc/platforms/cell/beat_interrupt.h @@ -24,9 +24,6 @@ extern void beatic_init_IRQ(void); extern unsigned int beatic_get_irq(void); -extern void beatic_cause_IPI(int cpu, int mesg); -extern void beatic_request_IPIs(void); -extern void beatic_setup_cpu(int); extern void beatic_deinit_IRQ(void); #endif diff --git a/arch/powerpc/platforms/cell/beat_smp.c b/arch/powerpc/platforms/cell/beat_smp.c deleted file mode 100644 index 23bbe6e08c87..000000000000 --- a/arch/powerpc/platforms/cell/beat_smp.c +++ /dev/null @@ -1,107 +0,0 @@ -/* - * SMP support for Celleb platform. (Incomplete) - * - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * This code is based on arch/powerpc/platforms/cell/smp.c: - * Dave Engebretsen, Peter Bergner, and - * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com - * Plus various changes from other IBM teams... - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#undef DEBUG - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "beat_interrupt.h" - -#ifdef DEBUG -#define DBG(fmt...) udbg_printf(fmt) -#else -#define DBG(fmt...) -#endif - -/* - * The primary thread of each non-boot processor is recorded here before - * smp init. - */ -/* static cpumask_t of_spin_map; */ - -/** - * smp_startup_cpu() - start the given cpu - * - * At boot time, there is nothing to do for primary threads which were - * started from Open Firmware. For anything else, call RTAS with the - * appropriate start location. - * - * Returns: - * 0 - failure - * 1 - success - */ -static inline int __devinit smp_startup_cpu(unsigned int lcpu) -{ - return 0; -} - -static int __init smp_beatic_probe(void) -{ - return cpumask_weight(cpu_possible_mask); -} - -static void __devinit smp_beatic_setup_cpu(int cpu) -{ - beatic_setup_cpu(cpu); -} - -static int __devinit smp_celleb_kick_cpu(int nr) -{ - BUG_ON(nr < 0 || nr >= NR_CPUS); - - return smp_startup_cpu(nr); -} - -static int smp_celleb_cpu_bootable(unsigned int nr) -{ - return 1; -} -static struct smp_ops_t bpa_beatic_smp_ops = { - .message_pass = beatic_cause_IPI, - .probe = smp_beatic_probe, - .kick_cpu = smp_celleb_kick_cpu, - .setup_cpu = smp_beatic_setup_cpu, - .cpu_bootable = smp_celleb_cpu_bootable, -}; - -/* This is called very early */ -void __init smp_init_celleb(void) -{ - DBG(" -> smp_init_celleb()\n"); - - smp_ops = &bpa_beatic_smp_ops; - - DBG(" <- smp_init_celleb()\n"); -} diff --git a/arch/powerpc/platforms/cell/celleb_setup.c b/arch/powerpc/platforms/cell/celleb_setup.c index e53845579770..d58d9bae4b9b 100644 --- a/arch/powerpc/platforms/cell/celleb_setup.c +++ b/arch/powerpc/platforms/cell/celleb_setup.c @@ -128,10 +128,6 @@ static void __init celleb_setup_arch_beat(void) spu_management_ops = &spu_management_of_ops; #endif -#ifdef CONFIG_SMP - smp_init_celleb(); -#endif - celleb_setup_arch_common(); } -- cgit v1.2.3