AcoSail/kernel_optimize_test
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e38df288a9
kernel_optimize_test/arch/mips
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James Hogan e38df288a9 MIPS: idle: Workaround wait + FDC problems 
On certain cores (namely proAptiv and P5600) incoming data via a Fast
Debug Channel (FDC) while the core is blocked on a wait instruction will
cause the wait not to wake up even when another interrupt is received.
This makes an idle target stop as soon as you send FDC data to it, until
the debug probe interrupts it and restarts the wait instruction.

This is worked around by avoiding using r4k_wait on these cores if
CONFIG_MIPS_EJTAG_FDC_TTY is enabled (which would imply the user intends
to use the FDC).

[ralf@linux-mips.org: Fix conflict.]

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9144/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-31 12:04:12 +02:00
..
alchemy Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-02-21 19:41:38 -08:00
ar7 mips: Convert pr_warning to pr_warn 2014-11-24 07:44:51 +01:00
ath25 MIPS: ath25: add Wireless device support 2014-11-24 07:45:29 +01:00
ath79 MIPS: ath79: Read the initrd address from the firmware environment 2014-11-24 07:45:30 +01:00
bcm47xx MIPS: BCM47XX: Support SPROM prefixes for PCI devices 2015-03-24 15:15:33 +01:00
bcm63xx MIPS: Remove useless parentheses 2014-11-24 07:44:49 +01:00
bcm3384 MIPS: BCM3384: Fix outdated use of mips_cpu_intc_init() 2015-02-19 13:47:55 +01:00
boot MIPS: Allow platforms to specify the decompressor load address 2015-03-31 12:04:12 +02:00
cavium-octeon CRYPTO: Octeon: Add SHA512 module 2015-03-24 15:15:43 +01:00
cobalt
configs MIPS: pistachio: Add an initial defconfig 2015-03-31 12:04:12 +02:00
dec Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-06-09 18:10:34 -07:00
emma
fw MIPS: ARC: Use __noreturn / unreachable in ARC termination functions. 2015-01-13 16:04:27 +01:00
include MIPS: Read CPU IRQ line that FDC to routed to 2015-03-31 12:04:12 +02:00
jazz
jz4740 MIPS: Allow platforms to specify the decompressor load address 2015-03-31 12:04:12 +02:00
kernel MIPS: idle: Workaround wait + FDC problems 2015-03-31 12:04:12 +02:00
kvm KVM: MIPS: Enable after disabling interrupt 2015-03-02 19:18:12 -03:00
lantiq Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
lasat MIPS: Lasat: Add missing CONFIG_PROC_FS dependency to PICVUE_PROC 2014-10-21 17:35:44 +02:00
lib MIPS: lib: memset: Add MIPS R6 support 2015-02-17 15:37:30 +00:00
loongson Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-12-11 17:56:37 -08:00
loongson1 MIPS: Loongson1B: Add a clockevent/clocksource using PWM Timer 2014-11-24 07:45:09 +01:00
math-emu MIPS: Handle MIPS IV, V and R2 FPU instructions on MIPS R6 as well 2015-02-17 15:37:37 +00:00
mm Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-02-21 19:41:38 -08:00
mti-malta MIPS: Malta: Implement get_c0_fdc_int() 2015-03-31 12:04:12 +02:00
mti-sead3 MIPS: sead3: Corrected get_c0_perfcount_int 2015-02-20 23:53:09 +01:00
net module: remove mod arg from module_free, rename module_memfree(). 2015-01-20 11:38:33 +10:30
netlogic mips: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:36 -08:00
oprofile MIPS: OProfile: Allow sharing IRQ with timer 2015-03-31 12:04:12 +02:00
paravirt mips: Update the email address of Geert Uytterhoeven 2014-06-02 16:34:41 +02:00
pci MIPS: PCI: Add struct pci_ops member names to initialization 2015-01-22 13:55:31 -06:00
pistachio MIPS: Add support for the IMG Pistachio SoC 2015-03-31 12:04:12 +02:00
pmcs-msp71xx kconfig: use bool instead of boolean for type definition attributes 2015-01-07 13:08:04 +01:00
pnx833x MIPS: PNX833x: Remove checks for CONFIG_I2C_PNX0105 2014-05-23 15:12:39 +02:00
power nosave: consolidate __nosave_{begin,end} in <asm/sections.h> 2014-10-09 22:26:04 -04:00
ralink Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rb532 MIPS: Replace use of phys_t with phys_addr_t. 2014-11-24 22:47:31 +01:00
sgi-ip22 MIPS: ip22-gio: Remove legacy suspend/resume support 2015-02-20 13:30:55 +01:00
sgi-ip27 MIPS: IP27: Use __noreturn instead of open coded attributes in declarations. 2015-01-13 16:04:28 +01:00
sgi-ip32 MIPS: IP32: Use __noreturn instead of open coded attributes in declarations. 2015-01-13 16:04:28 +01:00
sibyte MIPS: Replace use of phys_t with phys_addr_t. 2014-11-24 22:47:31 +01:00
sni
txx9 Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
vr41xx
Kbuild MIPS: net: Add BPF JIT 2014-05-30 16:10:20 +02:00
Kbuild.platforms MIPS: Add support for the IMG Pistachio SoC 2015-03-31 12:04:12 +02:00
Kconfig MIPS: Add support for the IMG Pistachio SoC 2015-03-31 12:04:12 +02:00
Kconfig.debug MIPS: kernel: elf: Improve the overall ABI and FPU mode checks 2015-02-17 15:37:39 +00:00
Makefile MIPS: boot: Provide more uImage options 2015-02-20 14:17:43 +01:00