linux/arch/sh/kernel/cpu/init.c, branch v3.4.84

Disintegrate asm/system.h for SH

2012-03-28T17:30:03Z

Disintegrate asm/system.h for SH. Signed-off-by: David Howells cc: linux-sh@vger.kernel.org

sh: Expose physical addressing mode through cpuinfo.

2010-10-26T05:44:58Z

CPUs can be in either the legacy 29-bit or 32-bit physical addressing modes. This follows the x86 approach of tracking the phys bits in cpuinfo and exposing it to userspace through procfs. This change was requested to permit kexec-tools to detect the physical addressing mode in order to determine the appropriate address mangling. Signed-off-by: Paul Mundt

sh: __cpuinit annotate the CPU init path.

2010-04-21T03:20:42Z

All of the regular CPU init path needs to be __cpuinit annotated for CPU hotplug. Signed-off-by: Paul Mundt

sh: Tidy CPU probing and fixup section annotations.

2010-04-21T03:01:06Z

This does a detect_cpu_and_cache_system() -> cpu_probe() rename, tidies up the unused return value, and stuffs it under __cpuinit in preparation for CPU hotplug. Signed-off-by: Paul Mundt

sh: Setup boot CPU VBR early to enable early page faults.

2010-02-17T03:33:22Z

vmemmap and the vmsplit code amongst others need to be able to take page faults much earlier than trap_init() time, so move this in to the early CPU initialization. VBR setup for secondary CPUs is already handled through start_secondary(), so we only need to do this for the boot CPU. Signed-off-by: Paul Mundt

sh: Mass ctrl_in/outX to __raw_read/writeX conversion.

2010-01-26T03:58:40Z

The old ctrl in/out routines are non-portable and unsuitable for cross-platform use. While drivers/sh has already been sanitized, there is still quite a lot of code that is not. This converts the arch/sh/ bits over, which permits us to flag the routines as deprecated whilst still building with -Werror for the architecture code, and to ensure that future users are not added. Signed-off-by: Paul Mundt

sh: Kill off the special uncached section and fixmap.

2010-01-21T07:05:25Z

Now that cached_to_uncached works as advertized in 32-bit mode and we're never going to be able to map < 16MB anyways, there's no need for the special uncached section. Kill it off. Signed-off-by: Paul Mundt

Merge branches 'sh/xstate', 'sh/hw-breakpoints' and 'sh/stable-updates'

2010-01-13T04:02:55Z

sh: Move over to dynamically allocated FPU context.

2010-01-13T03:51:40Z

This follows the x86 xstate changes and implements a task_xstate slab cache that is dynamically sized to match one of hard FP/soft FP/FPU-less. This also tidies up and consolidates some of the SH-2A/SH-4 FPU fragmentation. Now fpu state restorers are commonly defined, with the init_fpu()/fpu_init() mess reworked to follow the x86 convention. The fpu_init() register initialization has been replaced by xstate setup followed by writing out to hardware via the standard restore path. As init_fpu() now performs a slab allocation a secondary lighterweight restorer is also introduced for the context switch. In the future the DSP state will be rolled in here, too. More work remains for math emulation and the SH-5 FPU, which presently uses its own special (UP-only) interfaces. Signed-off-by: Paul Mundt

sh: Kill off dead UBC headers.

2010-01-05T10:16:35Z

Nothing is using these now, so kill them all off. Signed-off-by: Paul Mundt