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6baa9b20a6
linux_dsm_epyc7002/arch/sparc/kernel
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Sam Ravnborg 6baa9b20a6 sparc32: genirq support 
The conversion of sparc32 to genirq is based on original work done
by David S. Miller.
Daniel Hellstrom has helped in the conversion and implemented
the shutdowm functionality.
Marcel van Nies <morcles@gmail.com> has tested this on Sparc Station 20

Test status:
sun4c      - not tested
sun4m,pci  - not tested
sun4m,sbus - tested (Sparc Classic, Sparc Station 5, Sparc Station 20)
sun4d      - not tested
leon       - tested on various combinations of leon boards,
             including SMP variants

generic
   Introduce use of GENERIC_HARDIRQS and GENERIC_IRQ_SHOW
   Allocate 64 IRQs - which is enough even for SS2000
   Use a table of irq_bucket to maintain uses IRQs
      irq_bucket is also used to chain several irq's that
      must be called when the same intrrupt is asserted
   Use irq_link to link a interrupt source to the irq
   All plafforms must now supply their own build_device_irq method
   handler_irq rewriten to use generic irq support

floppy
   Read FLOPPY_IRQ from platform device
   Use generic request_irq to register the floppy interrupt
   Rewrote sparc_floppy_irq to use the generic irq support

pcic:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for pcic
   Use pcic_build_device_irq in pci_time_init
   allocate virtual irqs in pcic_fill_irq

sun4c:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for sun4c
   Use sun4c_build_device_irq in sun4c_init_timers

sun4m:
   Introduce irq_chip
   Introduce dedicated mask/unmask methods
   Introduce sun4m_handler_data that allow easy access to necessary
     data in the mask/unmask functions
   Add a helper method to enable profile_timer (used from smp)
   Added sun4m_build_device_irq
   Use sun4m_build_device_irq in sun4m_init_timers

   TODO:
      There is no replacement for smp_rotate that always scheduled
      next CPU as interrupt target upon an interrupt

sun4d:
   Introduce irq_chip
   Introduce dedicated mask/unmask methods
   Introduce sun4d_handler_data that allow easy access to
   necessary data in mask/unmask fuctions
   Rewrote sun4d_handler_irq to use generic irq support

   TODO:
      The original implmentation of enable/disable had:

          if (irq < NR_IRQS)
               return;

      The new implmentation does not distingush between SBUS and cpu
      interrupts.
      I am no sure what is right here. I assume we need to do
      something for the cpu interrupts.

      I have not succeeded booting my sun4d box (with or without this patch)
      and my understanding of this platfrom is limited.
      So I would be a bit suprised if this works.

leon:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for leon
   Use leon_build_device_irq in leon_init_timers

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Daniel Hellstrom <daniel@gaisler.com>
Tested-by: Daniel Hellstrom <daniel@gaisler.com>
Tested-by: Marcel van Nies <morcles@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19 22:11:40 -07:00
..
.gitignore sparc: gitignore a few files 2008-12-04 09:17:15 -08:00
apc.c dt/sparc: Eliminate users of of_platform_{,un}register_driver 2011-02-28 01:36:39 -07:00
asm-offsets.c sparc,sparc64: unify asm-offsets.c 2008-12-04 09:17:12 -08:00
audit.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
auxio_32.c sparc: explicitly cast negative phandle checks to s32 2011-01-03 20:02:06 -07:00
auxio_64.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
btext.c of/sparc: convert various prom_* functions to use phandle 2010-10-09 02:33:34 -06:00
central.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
cherrs.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
chmc.c dt/sparc: Eliminate users of of_platform_{,un}register_driver 2011-02-28 01:36:39 -07:00
compat_audit.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
cpu.c sparc32/leon: FPU-FSR only available when FPU present 2011-03-16 18:19:05 -07:00
cpumap.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cpumap.h sparc64: fix and optimize irq distribution 2009-06-16 04:56:28 -07:00
devices.c of/sparc: convert various prom_* functions to use phandle 2010-10-09 02:33:34 -06:00
dma.c sparc: Add CONFIG_DMA_API_DEBUG support 2009-08-10 09:35:00 +02:00
ds.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
dtlb_miss.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
dtlb_prot.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ebus.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
entry.h sparc64: rename virt_irq => irq - I 2011-03-16 18:19:03 -07:00
entry.S Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
etrap_32.S sparc: prepare kernel/ for unification 2008-12-04 09:17:20 -08:00
etrap_64.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
fpu_traps.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ftrace.c sparc64: Add function graph tracer support. 2010-04-12 22:37:26 -07:00
getsetcc.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
head_32.S sparc: use _start for the start entry (like 64 bit does) 2011-01-04 19:25:04 -08:00
head_64.S Fix common misspellings 2011-03-31 11:26:23 -03:00
helpers.S sparc64: Fix perf_arch_get_caller_regs(). 2010-08-08 22:07:36 -07:00
hvapi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hvcalls.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
hvtramp.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
idprom.c sparc,leon: Introduce the sparc-leon CPU type. 2009-08-17 18:32:10 -07:00
init_task.c Fix common misspellings 2011-03-31 11:26:23 -03:00
iommu_common.h sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
iommu.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
ioport.c sparc: Fix sbus_alloc_coherent error handling. 2011-03-16 18:18:59 -07:00
irq_32.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
irq_64.c sparc: Use generic show_interrupts() 2011-03-29 14:48:14 +02:00
irq.h sparc32: genirq support 2011-04-19 22:11:40 -07:00
itlb_miss.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ivec.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
jump_label.c jump label: Add sparc64 support 2010-09-22 16:35:09 -04:00
kernel.h sparc32: genirq support 2011-04-19 22:11:40 -07:00
kgdb_32.c kgdb,sparc: Add in kgdb_arch_set_pc for sparc 2010-05-20 21:04:19 -05:00
kgdb_64.c kgdb,sparc: Add in kgdb_arch_set_pc for sparc 2010-05-20 21:04:19 -05:00
kprobes.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
kstack.h sparc64: Run NMIs on the hardirq stack. 2010-04-14 02:04:29 -07:00
ktlb.S sparc64: Increase vmalloc size to fix percpu regressions. 2009-09-28 14:39:58 -07:00
ldc.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
led.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
leon_kernel.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
leon_pmc.c SPARC/LEON: power down instruction different of different LEONs 2011-03-16 18:19:04 -07:00
leon_smp.c sparc32: fix build with leon or floppy enabled 2011-03-16 18:19:13 -07:00
Makefile sparc32: genirq support 2011-04-19 22:11:40 -07:00
mdesc.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
misctrap.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
module.c mm: unify module_alloc code for vmalloc 2011-01-13 17:32:34 -08:00
muldiv.c sparc: add '32' suffix to reg_window, sigcontext, __siginfo_t 2009-01-02 19:32:59 -08:00
nmi.c perf, arch: Cleanup perf-pmu init vs lockup-detector 2010-11-26 15:14:56 +01:00
of_device_32.c sparc32: introduce build_device_irq 2011-03-16 18:19:14 -07:00
of_device_64.c Fix common misspellings 2011-03-31 11:26:23 -03:00
of_device_common.c sparc: Implement of_iomap(). 2011-03-18 15:47:26 -07:00
of_device_common.h sparc: move of_device common code to of_device_common 2009-06-16 04:56:49 -07:00
pci_common.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
pci_fire.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
pci_impl.h sparc64: rename virt_irq => irq - II 2011-03-16 18:19:03 -07:00
pci_msi.c sparc: Convert to new irq function names 2011-03-29 14:48:14 +02:00
pci_psycho.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
pci_sabre.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
pci_schizo.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
pci_sun4v_asm.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
pci_sun4v.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
pci_sun4v.h sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
pci.c sparc: Convert to new irq function names 2011-03-29 14:48:14 +02:00
pcic.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
pcr.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
perf_event.c Fix common misspellings 2011-03-31 11:26:23 -03:00
pmc.c dt/sparc: Eliminate users of of_platform_{,un}register_driver 2011-02-28 01:36:39 -07:00
power.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
process_32.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
process_64.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-08-28 13:55:31 -07:00
prom_32.c SPARC/LEON: avoid AMBAPP name duplicates in openprom fs when REG is missing 2011-01-04 11:16:37 -08:00
prom_64.c Merge commit 'v2.6.35-rc6' into devicetree/next 2010-07-24 09:49:13 -06:00
prom_common.c of/promtree: no longer call prom_ functions directly; use an ops structure 2010-10-12 21:57:53 -06:00
prom_irqtrans.c sparc64: rename virt_irq => irq - II 2011-03-16 18:19:03 -07:00
prom.h of/promtree: make drivers/of/pdt.c no longer sparc-only 2010-10-10 21:53:30 -06:00
psycho_common.c sparc: remove references to of_device and to_of_device 2010-07-24 09:58:22 -06:00
psycho_common.h sparc: remove references to of_device and to_of_device 2010-07-24 09:58:22 -06:00
ptrace_32.c ptrace: cleanup arch_ptrace() on sparc 2010-10-27 18:03:12 -07:00
ptrace_64.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
reboot.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
rtrap_32.S sparc: keep calling do_signal() as long as pending signals remain 2010-10-26 08:59:55 -07:00
rtrap_64.S sparc: keep calling do_signal() as long as pending signals remain 2010-10-26 08:59:55 -07:00
sbus.c sparc: remove references to of_device and to_of_device 2010-07-24 09:58:22 -06:00
setup_32.c sparc32: add irq + smp declarations to headers 2011-03-16 18:19:08 -07:00
setup_64.c of/sparc: convert various prom_* functions to use phandle 2010-10-09 02:33:34 -06:00
signal32.c sparc: Prevent no-handler signal syscall restart recursion. 2010-09-21 22:30:13 -07:00
signal_32.c sparc: Prevent no-handler signal syscall restart recursion. 2010-09-21 22:30:13 -07:00
signal_64.c sparc: Prevent no-handler signal syscall restart recursion. 2010-09-21 22:30:13 -07:00
smp_32.c sparc,leon: Sparc-Leon SMP support 2009-11-02 04:19:42 -08:00
smp_64.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
sparc_ksyms_32.c sparc: Eliminate PROMLIB_INTERNAL as it does nothing 2009-01-08 16:59:01 -08:00
sparc_ksyms_64.c sparc64: don't export static inline pci_ functions 2009-12-15 16:28:13 +10:30
spiterrs.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
sstate.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
stacktrace.c sparc64: Fix stack dumping and tracing when function graph is enabled. 2010-04-21 03:08:11 -07:00
starfire.c sparc: explicitly cast negative phandle checks to s32 2011-01-03 20:02:06 -07:00
sun4c_irq.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
sun4d_irq.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
sun4d_smp.c sparc32,sun4d: irq, smp files cleanup 2011-03-16 18:19:10 -07:00
sun4m_irq.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
sun4m_smp.c sparc32: genirq support 2011-04-19 22:11:40 -07:00
sun4v_ivec.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
sun4v_tlb_miss.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
sys32.S sparc: Hook up new fanotify and prlimit64 syscalls. 2010-08-16 15:04:29 -07:00
sys_sparc32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sys_sparc_32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sys_sparc_64.c sparc64: Sharpen address space randomization calculations. 2011-03-16 18:19:12 -07:00
syscalls.S sparc64: Kill off old sys_perfctr system call and state. 2010-03-03 08:08:49 -08:00
sysfs.c arch/sparc/kernel: Use set_cpus_allowed_ptr 2010-03-27 21:11:56 -07:00
systbls_32.S sparc: Hook up syncfs system call. 2011-03-29 23:09:09 -07:00
systbls_64.S sparc: Hook up syncfs system call. 2011-03-29 23:09:09 -07:00
systbls.h improve sys_newuname() for compat architectures 2010-03-12 15:52:32 -08:00
tadpole.c of/sparc: convert various prom_* functions to use phandle 2010-10-09 02:33:34 -06:00
time_32.c sparc32: cleanup code for pci init 2011-04-19 22:11:39 -07:00
time_64.c sparc64: Fix section mis-match errors. 2011-03-30 17:37:56 -07:00
trampoline_32.S sparc,leon: Sparc-Leon SMP support 2009-11-02 04:19:42 -08:00
trampoline_64.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
traps_32.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
traps_64.c sparc64: Fix build errors with gcc-4.6.0 2011-03-16 18:19:15 -07:00
tsb.S sparc64: Fix sun4u execute bit check in TSB I-TLB load. 2010-02-19 15:19:52 -08:00
ttable.S sparc64: fix the build error due to smp_kgdb_capture_client() 2010-06-25 11:17:57 -07:00
una_asm_32.S sparc32: unaligned memory access (MNA) trap handler bug 2011-02-01 12:39:59 -08:00
una_asm_64.S sparc: Fix .size directive for do_int_load 2011-03-16 18:19:15 -07:00
unaligned_32.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
unaligned_64.c sparc64: Use correct pt_regs in decode_access_size() error paths. 2010-04-19 13:46:48 -07:00
us2e_cpufreq.c arch/sparc/kernel: Use set_cpus_allowed_ptr 2010-03-27 21:11:56 -07:00
us3_cpufreq.c arch/sparc/kernel: Use set_cpus_allowed_ptr 2010-03-27 21:11:56 -07:00
utrap.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
vio.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
viohs.c sparc64: refactor code in viohs.c 2009-01-06 12:46:46 -08:00
visemul.c sparc: Add alignment and emulation fault perf events. 2009-12-11 01:07:53 -08:00
vmlinux.lds.S percpu: align percpu readmostly subsection to cacheline 2011-01-25 14:26:50 +01:00
windows.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
winfixup.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
wof.S sparc/kernel/: possible cleanups 2008-07-17 21:37:46 -07:00
wuf.S sparc/kernel/: possible cleanups 2008-07-17 21:37:46 -07:00