AuxXxilium/linux_dsm_epyc7002
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0edc2ca9cc
linux_dsm_epyc7002/arch
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Michael Ellerman 0edc2ca9cc Revert "powerpc: Handle simultaneous interrupts at once" 
This reverts commit 45cb08f479.

For some reason this is causing IRQ problems on Freescale Book3E
machines, eg on my p5020ds:

  irq 25: nobody cared (try booting with the "irqpoll" option)
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc3-gcc-6.3.1-00037-g45cb08f4791c #624
  Call Trace:
  [c0000000fffdbb10] [c00000000049962c] .dump_stack+0xa8/0xe8 (unreliable)
  [c0000000fffdbba0] [c0000000000babf4] .__report_bad_irq+0x54/0x140
  [c0000000fffdbc40] [c0000000000bb11c] .note_interrupt+0x324/0x380
  [c0000000fffdbd00] [c0000000000b7110] .handle_irq_event_percpu+0x68/0x88
  [c0000000fffdbd90] [c0000000000b718c] .handle_irq_event+0x5c/0xa8
  [c0000000fffdbe10] [c0000000000bc01c] .handle_fasteoi_irq+0xe4/0x298
  [c0000000fffdbe90] [c0000000000b59c4] .generic_handle_irq+0x50/0x74
  [c0000000fffdbf10] [c0000000000075d8] .__do_irq+0x74/0x1f0
  [c0000000fffdbf90] [c0000000000189f8] .call_do_irq+0x14/0x24
  [c0000000f7173060] [c0000000000077e4] .do_IRQ+0x90/0x120
  [c0000000f7173100] [c00000000001d93c] exc_0x500_common+0xfc/0x100
  --- interrupt: 501 at .prepare_to_wait_event+0xc/0x14c
      LR = .fsl_elbc_run_command+0xc8/0x23c
  [c0000000f71734d0] [c00000000065f418] .nand_reset+0xb8/0x168
  [c0000000f7173560] [c00000000065fec4] .nand_scan_ident+0x2b0/0x1638
  [c0000000f7173650] [c000000000666cd8] .fsl_elbc_nand_probe+0x34c/0x5f0
  ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  [c0000000f7173750] [c0000000005a3c60] .platform_drv_probe+0x64/0xb0
  [c0000000f71737d0] [c0000000005a12e0] .really_probe+0x290/0x334
  [c0000000f7173870] [c0000000005a14a0] .__driver_attach+0x11c/0x120
  [c0000000f7173900] [c00000000059e6a0] .bus_for_each_dev+0x98/0xfc
  [c0000000f71739a0] [c0000000005a0b3c] .driver_attach+0x34/0x4c
  [c0000000f7173a20] [c0000000005a04b0] .bus_add_driver+0x1ac/0x2e0
  [c0000000f7173ac0] [c0000000005a2170] .driver_register+0x94/0x160
  [c0000000f7173b40] [c0000000005a3be0] .__platform_driver_register+0x60/0x7c
  [c0000000f7173bc0] [c000000000d6aab4] .fsl_elbc_nand_driver_init+0x24/0x38
  [c0000000f7173c30] [c000000000001934] .do_one_initcall+0x68/0x1b8
  [c0000000f7173d00] [c000000000d210f8] .kernel_init_freeable+0x260/0x338
  [c0000000f7173db0] [c0000000000021b0] .kernel_init+0x20/0xe70
  [c0000000f7173e30] [c0000000000009bc] .ret_from_kernel_thread+0x58/0x9c
  handlers:
  [<c000000000ed85c8>] .fsl_lbc_ctrl_irq
  Disabling IRQ #25

Ben also had concerns with the implementation being potentially slow on
some PICs, so revert it for now.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-06-15 16:20:46 +10:00
..
alpha osf_wait4(): fix infoleak 2017-05-21 13:10:07 -04:00
arc Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
arm KVM fixes for v4.12-rc2 2017-05-19 15:13:13 -07:00
arm64 arm64: dts: hikey: Fix WiFi support 2017-05-23 14:18:10 +02:00
blackfin uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
c6x uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
cris devicetree: Move include prefixes from arch to separate directory 2017-05-18 23:55:48 -07:00
frv Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
h8300 uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
hexagon uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
ia64 Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
m32r uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
m68k uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
metag devicetree: Move include prefixes from arch to separate directory 2017-05-18 23:55:48 -07:00
microblaze uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
mips devicetree: Move include prefixes from arch to separate directory 2017-05-18 23:55:48 -07:00
mn10300 uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
nios2 nios2 update for v4.12-rc1 2017-05-12 09:53:16 -07:00
openrisc uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
parisc uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
powerpc Revert "powerpc: Handle simultaneous interrupts at once" 2017-06-15 16:20:46 +10:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-05-16 09:24:44 -07:00
score uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
sh Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
sparc sparc/ftrace: Fix ftrace graph time measurement 2017-05-17 12:07:47 -07:00
tile arch/include: remove empty Kbuild files 2017-05-11 00:22:18 +09:00
um Merge branch 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2017-05-13 10:20:02 -07:00
unicore32 Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-27 09:17:58 -07:00
xtensa uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
.gitignore
Kconfig Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-10 10:30:46 -07:00