From bebf023d415fd8984994a596aaa83cd0a3046d0b Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 13 Jan 2010 20:44:28 +0100 Subject: [S390] remove superfluous TIF_USEDFPU bit The TIF_USEDFPU bit is always 0 for s390 and it is not tested anywhere. Remove the bit. At the same time remove the calls to clear_used_math() as well. The PF_USED_MATH bit is never set for s390 either. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'arch/s390/kernel/setup.c') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 0663287fa1b3..2148ad3d490d 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -124,12 +124,6 @@ void __cpuinit cpu_init(void) */ get_cpu_id(&S390_lowcore.cpu_id); - /* - * Force FPU initialization: - */ - clear_thread_flag(TIF_USEDFPU); - clear_used_math(); - atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; BUG_ON(current->mm); -- cgit v1.2.1 From 02beaccc901b7a28ac1de79f3ed122f5fda220b1 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 13 Jan 2010 20:44:34 +0100 Subject: [S390] smp: setup smp_processor_id early smp_processor_id() is supposed to work before setup_arch() gets called. Before that smp_processor_id() may return just an arbitrary value that is contained in the uninitialized boot lowcore. So provide the arch function which will override the weak function in init/main.c. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/s390/kernel/setup.c') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 2148ad3d490d..2d6a265b0145 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -849,7 +849,6 @@ setup_arch(char **cmdline_p) setup_lowcore(); cpu_init(); - __cpu_logical_map[0] = stap(); s390_init_cpu_topology(); /* -- cgit v1.2.1 From c6a5f8cea2e5454fce3859ca5ed381c2535184cf Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 13 Jan 2010 20:44:35 +0100 Subject: [S390] smp: remove volatile type quilifier from __cpu_logical_map Remove pointless qualifier. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390/kernel/setup.c') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 2d6a265b0145..3fe1680c3899 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -87,7 +87,7 @@ unsigned long elf_hwcap = 0; char elf_platform[ELF_PLATFORM_SIZE]; struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS]; -volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */ +int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */ int __initdata memory_end_set; unsigned long __initdata memory_end; -- cgit v1.2.1 From fb380aadfe34e8d3ce628cb3e386882351940874 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 13 Jan 2010 20:44:37 +0100 Subject: [S390] Move __cpu_logical_map to smp.c Finally move it to the place where it belongs to and make get rid of it for !CONFIG_SMP. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/s390/kernel/setup.c') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 3fe1680c3899..8d8957b38ab3 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -87,7 +87,6 @@ unsigned long elf_hwcap = 0; char elf_platform[ELF_PLATFORM_SIZE]; struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS]; -int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */ int __initdata memory_end_set; unsigned long __initdata memory_end; -- cgit v1.2.1