提交 · 29473822943ab5357cf3fcb718483f07f3188b83 · openanolis / cloud-kernel

08 5月, 2013 30 次提交

MIPS: ralink: add missing comment in irq driver · 29473822

由 John Crispin 提交于 3月 16, 2013

Trivial patch that adds a comment that makes the code more readable.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Acked-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5168/

29473822

MIPS: ralink: fix RT305x clock setup · 6ac8579b

由 John Crispin 提交于 3月 22, 2013

Add a few missing clocks.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Acked-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5167/

6ac8579b

MIPS: ralink: add RT3352 register defines · bb19fea2

由 John Crispin 提交于 3月 21, 2013

Add a few missing defines that are needed to make USB and clock detection work
on the RT3352.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Acked-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5166/

bb19fea2

MIPS: ralink: add PCI IRQ handling · 48b4aba7

由 Gabor Juhos 提交于 4月 10, 2013

The Ralink IRQ code was not handling the PCI IRQ yet. Add this functionaility
to make PCI work on rt3883.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5165/

48b4aba7

MIPS: move mips_{set,get}_machine_name() to a more generic place · 9169a5d0

由 John Crispin 提交于 4月 11, 2013

Previously this functionality was only available to users of the mips_machine
api. Moving the code to prom.c allows us to also add a OF wrapper.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5164/

9169a5d0

MIPS: octeon: Fix GPIO number in IRQ chip private data · d41d547a

由 Alexander Sverdlin 提交于 4月 11, 2013

Current GPIO chip implementation in octeon-irq is still broken, even after upstream
commit 87161ccd (MIPS: Octeon: Fix broken interrupt
controller code). It works for GPIO IRQs that have reset-default configuration, but
not for edge-triggered ones.

The problem is in octeon_irq_gpio_map_common(), which passes modified "hw" variable
(which has range of possible values 16..31) as "gpio_line" parameter to
octeon_irq_set_ciu_mapping(), which saves it in private data of the IRQ chip. Later,
neither octeon_irq_gpio_setup() is able to re-configure GPIOs (cvmx_write_csr() is
writing to non-existent CVMX_GPIO_BIT_CFGX), nor octeon_irq_ciu_gpio_ack() is able
to acknowledge such IRQ, because "mask" is incorrect.

Fix is trivial and has been tested on Cavium Octeon II -based board, including
both level-triggered and edge-triggered GPIO IRQs.
Signed-off-by: NAlexander Sverdlin <alexander.sverdlin.ext@nsn.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4980/Acked-by: NJohn Crispin <blogic@openwrt.org>

d41d547a

MIPS: pci: convert to devm_ioremap_resource() · f560fabd

由 Silviu-Mihai Popescu 提交于 3月 12, 2013

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: NSilviu-Mihai Popescu <silviupopescu1990@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/4986/Acked-by: NJohn Crispin <blogic@openwrt.org>

f560fabd

MIPS: Remove unneeded volatile from arch/mips/lib/bitops.c · 30189651

由 David Daney 提交于 2月 26, 2013

The operations on the bitmap pointers are protected by "memory"
clobbering raw_local_irq_{save,restore}(), so there is no need for
volatile here. By removing the volatile we get better code generation
out of the compiler.
Signed-off-by: NDavid Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4966/Acked-by: NJohn Crispin <blogic@openwrt.org>

30189651

MIPS: Init new mmu_context for each possible CPU to avoid memory corruption · 22478677

由 Huacai Chen 提交于 3月 17, 2013

Currently, init_new_context() only for each online CPU, this may cause
memory corruption when CPU hotplug and fork() happens at the same time.
To avoid this, we make init_new_context() cover each possible CPU.

Scenario:
1, CPU#1 is being offline;
2, On CPU#0, do_fork() call dup_mm() and copy a mm_struct to the child;
3, On CPU#0, dup_mm() call init_new_context(), since CPU#1 is offline
   and init_new_context() only covers the online CPUs, child has the
   same asid as its parent on CPU#1 (however, child's asid should be 0);
4, CPU#1 is being online;
5, Now, if both parent and child run on CPU#1, memory corruption (e.g.
   segfault, bus error, etc.) will occur.
Signed-off-by: NHuacai Chen <chenhc@lemote.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4995/Acked-by: NJohn Crispin <blogic@openwrt.org>

22478677

MIPS: Build uasm-generated code only once to avoid CPU Hotplug problem · 8759934e

由 Huacai Chen 提交于 3月 17, 2013

This and the next patch resolve memory corruption problems while CPU
hotplug. Without these patches, memory corruption can triggered easily
as below:

On a quad-core MIPS platform, use "spawn" of UnixBench-5.1.3 (http://
code.google.com/p/byte-unixbench/) and a CPU hotplug script like this
(hotplug.sh):
while true; do
echo 0 >/sys/devices/system/cpu/cpu1/online
echo 0 >/sys/devices/system/cpu/cpu2/online
echo 0 >/sys/devices/system/cpu/cpu3/online
sleep 1
echo 1 >/sys/devices/system/cpu/cpu1/online
echo 1 >/sys/devices/system/cpu/cpu2/online
echo 1 >/sys/devices/system/cpu/cpu3/online
sleep 1
done

Run "hotplug.sh" and then run "spawn 10000", spawn will get segfault
after a few minutes.

This patch:
Currently, clear_page()/copy_page() are generated by Micro-assembler
dynamically. But they are unavailable until uasm_resolve_relocs() has
finished because jump labels are illegal before that. Since these
functions are shared by every CPU, we only call build_clear_page()/
build_copy_page() only once at boot time. Without this patch, programs
will get random memory corruption (segmentation fault, bus error, etc.)
while CPU Hotplug (e.g. one CPU is using clear_page() while another is
generating it in cpu_cache_init()).

For similar reasons we modify build_tlb_refill_handler()'s invocation.

V2:
1, Rework the code to make CPU#0 can be online/offline.
2, Introduce cpu_has_local_ebase feature since some types of MIPS CPU
   need a per-CPU tlb_refill_handler().
Signed-off-by: NHuacai Chen <chenhc@lemote.com>
Signed-off-by: NHongbing Hu <huhb@lemote.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4994/Acked-by: NJohn Crispin <blogic@openwrt.org>

8759934e

MIPS: Kconfig: remove "config MIPS_DISABLE_OBSOLETE_IDE" · 59b435d1

由 Paul Bolle 提交于 4月 08, 2013

The Kconfig symbol MIPS_DISABLE_OBSOLETE_IDE was added in v2.6.10. It
has never been used. Let's remove it.

The symbol was originally introduced by the following commit

commit 2bfa662b64a7ee593f3039c1d3fd81a7766a63cd
Author: Pete Popov <ppopov@embeddedalley.com>
Date:   Tue Oct 12 06:24:19 2004 +0000
    - Db1550 bug fixes
    - updated defconfig
    - updated Kconfig to use DMA_COHERENT since new silicon is coherent
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5064/Acked-by: NJohn Crispin <blogic@openwrt.org>

59b435d1

MIPS: Kconfig: remove "config MIPS_BOARDS_GEN" · be0c9bd4

由 Paul Bolle 提交于 4月 08, 2013

The Kconfig symbol MIPS_BOARDS_GEN is unused since v2.6.27. It should
now be removed.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5063/Acked-by: NJohn Crispin <blogic@openwrt.org>

be0c9bd4

MIPS: remove obsolete Kconfig macros · 88564dda

由 Paul Bolle 提交于 3月 25, 2013

The support for PB1100, PB1500, and PB1550 got merged into the code for
DB1000 and DB1550 code in v3.7. When that was done the three related
Kconfig symbols were dropped. But not all related Kconfig macros were
removed. Do so now.

Note that the PB1100 code in the Au1100 LCD driver is removed entirely
and not converted to use its current Kconfig macro. That is done because
the macros it uses (PB1100_G_CONTROL, PB1100_G_CONTROL_BL, and
PB1100_G_CONTROL_VDD) are never defined. Actually only one of these was
ever defined (PB1100_G_CONTROL) but that define was removed in v2.6.34.
So, as far as I can tell, this code could have never compiled.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5040/Acked-by: NJohn Crispin <blogic@openwrt.org>

88564dda

MIPS: Netlogic: Fix oprofile compile on XLR uniprocessor · 83a18415

由 Jayachandran C 提交于 3月 25, 2013

The commit c783390a [MIPS: oprofile:
Support for XLR/XLS processors] causes a compilation failure when
oprofile is enabled and SMP is not configured.

arch/mips/oprofile/op_model_mipsxx.c: In function 'mipsxx_cpu_setup':
arch/mips/oprofile/op_model_mipsxx.c:181:2: error: implicit declaration of function 'cpu_logical_map'

To fix this, update oprofile_skip_cpu to not call cpu_logical_map when
CONFIG_SMP is not defined.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5037/Acked-by: NJohn Crispin <blogic@openwrt.org>

83a18415

MIPS: Netlogic: Merge platform usb.h to usb-init.c · c80dd3b6

由 Jayachandran C 提交于 3月 23, 2013

The definitions are not used anywhere else, and merging it will
make adding the new USB definitions for XLPII series easier.
While there, cleanup some whitespace in usb-init.c. There is no
change to logic due to this commit.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5027/Acked-by: NJohn Crispin <blogic@openwrt.org>

c80dd3b6

MIPS: Netlogic: Support for multiple built-in device trees · 035114fb

由 Jayachandran C 提交于 3月 23, 2013

This enables us to have a default device tree per SoC family to be built
into the kernel. The default device tree for XLP3xx has been added as part
of this change. Later this can be used to provide support default boards
for XLP2xx and XLP9xx SoCs.

Kconfig options are provided for each default device tree so that just the
needed ones can be selected to be built into the kernel.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5023/Acked-by: NJohn Crispin <blogic@openwrt.org>

035114fb

MIPS: Netlogic: Remove unused code · 033e6f28

由 Jayachandran C 提交于 3月 23, 2013

Remove unused functions and redundant comments from
arch/mips/include/asm/netlogic/haldefs.h
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5029/Acked-by: NJohn Crispin <blogic@openwrt.org>

033e6f28

MIPS: Netlogic: Add 32-bit support for XLP · 1ad4af85

由 Jayachandran C 提交于 3月 23, 2013

Update asm/netlogic/haldefs.h to extend register access functions
nlm_{read,write}_reg64() for 32-bit compilation. When compiled for 32-bit
the functions will read 64 IO registers with interrupts disabled.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5026/Acked-by: NJohn Crispin <blogic@openwrt.org>

1ad4af85

MIPS: Netlogic: Avoid using fixed PIC IRT index · 3c0553e7

由 Jayachandran C 提交于 3月 23, 2013

The index for a device interrupt in the PIC interrupt routing table
changes for different chips in the XLP family.  Avoid using the fixed
entries and derive the index value from the SoC device header.

Add workarounds for some devices which do not report the IRT index
correctly.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5025/Acked-by: NJohn Crispin <blogic@openwrt.org>

3c0553e7

MIPS: Netlogic: print cpumask with cpumask_scnprintf · 62b734d2

由 Jayachandran C 提交于 3月 23, 2013

Use standard function to print cpumask. Also fixup the name of the
variable used and make it static.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5024/Acked-by: NJohn Crispin <blogic@openwrt.org>

62b734d2

MIPS: Netlogic: Remove unused EIMR/EIRR functions · e6904ff6

由 Jayachandran C 提交于 3月 23, 2013

Remove the definitions of {read,write}_c0_{eirr,eimr}. These functions
are now unused after the PIC and IRQ code has been updated to use
optimized EIMR/EIRR functions which work on both 32-bit and 64-bit.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5021/Acked-by: NJohn Crispin <blogic@openwrt.org>

e6904ff6

MIPS: Netlogic: Optimize and fix write_c0_eimr() · 33ff712a

由 Jayachandran C 提交于 3月 23, 2013

Remove the irq save/restore from write_c0_eimr(), as it is always called
with interrupts off.

This allows us to remove workaround in write_c0_eimr() to fix up the
flags used by local_irq_save. This fixup worked on XLR, but will break
when 32-bit support is added to r2 cpus like XLP.
Signed-off-by: NJayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5022/Acked-by: NJohn Crispin <blogic@openwrt.org>

33ff712a

MIPS: BCM63XX: merge bcm63xx_clk.h into bcm63xx/clk.c · 042df4fa

由 Jonas Gorski 提交于 4月 06, 2013

All the header file does is provide the internal structure of clk,
which shouldn't be used by anyone except clk.c itself anyway.
Signed-off-by: NJonas Gorski <jogo@openwrt.org>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Patchwork: http://patchwork.linux-mips.org/patch/5055/Acked-by: NJohn Crispin <blogic@openwrt.org>

042df4fa

MIPS: BCM63XX: add flash detection for BCM6362 · ab8ed982