Hi Max,
I have added the SMP patch-set to the for_next tree (for the time
being). Let me know if you wanted it in for this release or if you think
it's not ready for prime time. Note that I skipped the variant
configuration as it is a lot of code and it is more of a 'test'
configuration.
Thanks,
-Chris
On 10/16/13, 3:42 PM, Max Filippov wrote:
Hi Chris,
this series adds SMP support for xtensa.
There's a number of trivial cleanups:
xtensa: remove NO_IRQ definitions
xtensa: fix build warning in 64-bit build environment
xtensa: fix build warning from gcc-4.7.2
xtensa: call check_s32c1i after trap_init
xtensa: move init_mmu declaration to mmu_context.h
a couple of fixes for spinlocks:
xtensa: fix arch spinlock function names
xtensa: fix __delay for small loop count
three fixes for the clocksources, with these we get high precision timers
usable in SMP and IRQ time accounting:
xtensa: mark ccount as continuous clocksource
xtensa: update clockevent setup for SMP
xtensa: enable HAVE_IRQ_TIME_ACCOUNTING
fixes and rearrangement of IRQ handling code and a new driver for MX
interrupt distributor:
xtensa: move built-in PIC to drivers/irqchip
xtensa: clean up do_interrupt/do_IRQ
xtensa: clear timer IRQ unconditionally in its handler
xtensa: add MX irqchip
and finally SMP and hotplug CPU support and a sample SMP-capable CPU variant:
xtensa: add SMP support
xtensa: implement CPU hotplug
xtensa: add Three Core HiFi-2 MX Variant.
Please review.
You can pull these changes from my git tree,
the following changes since commit 61e6cfa80de5760bbe406f4e815b7739205754d2:
Linux 3.12-rc5 (2013-10-13 15:41:28 -0700)
are available in the git repository at:
git://github.com/jcmvbkbc/linux-xtensa.git tags/xtensa-smp-20131017
for you to fetch changes up to 4862c5ae570b8a40275f413dfa2e3f184ecfa1d9:
xtensa: implement CPU hotplug (2013-10-17 01:50:17 +0400)
----------------------------------------------------------------
Clean up minor warnings.
Fix spinlock function names, provide missing definitions.
Extract PIC into drivers/irqchip.
Clean up IRQ handling.
Add MX interrupt distributor.
Add SMP support.
Add hotplug CPU support.
Add SMP-capable core variant.
----------------------------------------------------------------
Baruch Siach (1):
xtensa: mark ccount as continuous clocksource
Max Filippov (15):
xtensa: remove NO_IRQ definitions
xtensa: fix build warning in 64-bit build environment
xtensa: fix build warning from gcc-4.7.2
xtensa: fix arch spinlock function names
xtensa: fix __delay for small loop count
xtensa: enable HAVE_IRQ_TIME_ACCOUNTING
xtensa: update clockevent setup for SMP
xtensa: call check_s32c1i after trap_init
xtensa: move init_mmu declaration to mmu_context.h
xtensa: move built-in PIC to drivers/irqchip
xtensa: clean up do_interrupt/do_IRQ
xtensa: clear timer IRQ unconditionally in its handler
xtensa: add MX irqchip
xtensa: add SMP support
xtensa: implement CPU hotplug
Piet Delaney (1):
xtensa: add Three Core HiFi-2 MX Variant.
arch/xtensa/Kconfig | 54 +-
arch/xtensa/Makefile | 1 +
arch/xtensa/include/asm/barrier.h | 4 +-
arch/xtensa/include/asm/bitops.h | 8 +-
arch/xtensa/include/asm/cacheflush.h | 40 +-
arch/xtensa/include/asm/delay.h | 9 +-
arch/xtensa/include/asm/irq.h | 9 +
arch/xtensa/include/asm/mmu.h | 10 +-
arch/xtensa/include/asm/mmu_context.h | 106 ++--
arch/xtensa/include/asm/mxregs.h | 46 ++
arch/xtensa/include/asm/processor.h | 20 +
arch/xtensa/include/asm/ptrace.h | 8 +
arch/xtensa/include/asm/smp.h | 38 +-
arch/xtensa/include/asm/spinlock.h | 31 +-
arch/xtensa/include/asm/spinlock_types.h | 20 +
arch/xtensa/include/asm/timex.h | 14 +-
arch/xtensa/include/asm/tlbflush.h | 42 +-
arch/xtensa/include/asm/traps.h | 1 +
arch/xtensa/include/asm/vectors.h | 4 +
arch/xtensa/kernel/Makefile | 1 +
arch/xtensa/kernel/head.S | 181 +++++--
arch/xtensa/kernel/irq.c | 207 ++++----
arch/xtensa/kernel/mxhead.S | 85 +++
arch/xtensa/kernel/setup.c | 92 ++--
arch/xtensa/kernel/smp.c | 591 +++++++++++++++++++++
arch/xtensa/kernel/time.c | 56 +-
arch/xtensa/kernel/traps.c | 56 +-
arch/xtensa/kernel/vmlinux.lds.S | 26 +
arch/xtensa/mm/cache.c | 7 +-
arch/xtensa/mm/fault.c | 2 +-
arch/xtensa/mm/misc.S | 4 +-
arch/xtensa/mm/mmu.c | 4 +-
arch/xtensa/mm/tlb.c | 37 +-
.../platforms/xtfpga/include/platform/hardware.h | 6 +-
arch/xtensa/variants/s6000/include/variant/irq.h | 1 -
.../test_mmuhifi_c3/include/variant/core.h | 384 +++++++++++++
.../test_mmuhifi_c3/include/variant/tie-asm.h | 183 +++++++
.../variants/test_mmuhifi_c3/include/variant/tie.h | 141 +++++
drivers/irqchip/Kconfig | 4 +
drivers/irqchip/Makefile | 2 +
drivers/irqchip/irq-xtensa-mx.c | 166 ++++++
drivers/irqchip/irq-xtensa-pic.c | 108 ++++
include/linux/irqchip/xtensa-mx.h | 17 +
include/linux/irqchip/xtensa-pic.h | 18 +
44 files changed, 2455 insertions(+), 389 deletions(-)
create mode 100644 arch/xtensa/include/asm/mxregs.h
create mode 100644 arch/xtensa/include/asm/spinlock_types.h
create mode 100644 arch/xtensa/kernel/mxhead.S
create mode 100644 arch/xtensa/kernel/smp.c
create mode 100644 arch/xtensa/variants/test_mmuhifi_c3/include/variant/core.h
create mode 100644 arch/xtensa/variants/test_mmuhifi_c3/include/variant/tie-asm.h
create mode 100644 arch/xtensa/variants/test_mmuhifi_c3/include/variant/tie.h
create mode 100644 drivers/irqchip/irq-xtensa-mx.c
create mode 100644 drivers/irqchip/irq-xtensa-pic.c
create mode 100644 include/linux/irqchip/xtensa-mx.h
create mode 100644 include/linux/irqchip/xtensa-pic.h
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