15 Jan, 2012
1 commit
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* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits)
MIPS: Delete unused function add_temporary_entry.
MIPS: Set default pci cache line size.
MIPS: Flush huge TLB
MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM.
MIPS: Octeon: Add support for OCTEON II PCIe
MIPS: Octeon: Update PCI Latency timer and enable more error reporting.
MIPS: Alchemy: Update cpu-feature-overrides
MIPS: Alchemy: db1200: Improve PB1200 detection.
MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code.
MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller
MIPS: Alchemy: irq: register pm at irq init time
MIPS: Alchemy: Touchscreen support on DB1100
MIPS: Alchemy: Hook up IrDA on DB1000/DB1100
net/irda: convert au1k_ir to platform driver.
MIPS: Alchemy: remove unused board headers
MTD: nand: make au1550nd.c a platform_driver
MIPS: Netlogic: Mark Netlogic chips as SMT capable
MIPS: Netlogic: Add support for XLP 3XX cores
MIPS: Netlogic: Merge some of XLR/XLP wakup code
MIPS: Netlogic: Add default XLP config.
...Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c,
traps.c} and drivers/tty/serial/Makefile
13 Jan, 2012
2 commits
-
Use the more commonly used __noreturn instead of ATTRIB_NORETURN.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joe Perches
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Haavard Skinnemoen
Cc: Hans-Christian Egtvedt
Cc: Tony Luck
Cc: Fenghua Yu
Acked-by: Geert Uytterhoeven
Acked-by: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Chris Metcalf
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It's a very old and now unused prototype marking so just delete it.
Neaten panic pointer argument style to keep checkpatch quiet.
Signed-off-by: Joe Perches
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Haavard Skinnemoen
Cc: Hans-Christian Egtvedt
Cc: Tony Luck
Cc: Fenghua Yu
Acked-by: Geert Uytterhoeven
Acked-by: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Chris Metcalf
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Jan, 2012
3 commits
-
…ium', 'next/generic', 'next/kprobes', 'next/lantiq', 'next/perf' and 'next/raza' into mips-for-linux-next
07 Jan, 2012
1 commit
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* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
cpu: Export cpu_up()
rcu: Apply ACCESS_ONCE() to rcu_boost() return value
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
docs: Additional LWN links to RCU API
rcu: Augment rcu_batch_end tracing for idle and callback state
rcu: Add rcutorture tests for srcu_read_lock_raw()
rcu: Make rcutorture test for hotpluggability before offlining CPUs
driver-core/cpu: Expose hotpluggability to the rest of the kernel
rcu: Remove redundant rcu_cpu_stall_suppress declaration
rcu: Adaptive dyntick-idle preparation
rcu: Keep invoking callbacks if CPU otherwise idle
rcu: Irq nesting is always 0 on rcu_enter_idle_common
rcu: Don't check irq nesting from rcu idle entry/exit
rcu: Permit dyntick-idle with callbacks pending
rcu: Document same-context read-side constraints
rcu: Identify dyntick-idle CPUs on first force_quiescent_state() pass
rcu: Remove dynticks false positives and RCU failures
rcu: Reduce latency of rcu_prepare_for_idle()
rcu: Eliminate RCU_FAST_NO_HZ grace-period hang
rcu: Avoid needlessly IPIing CPUs at GP end
...
20 Dec, 2011
1 commit
-
…x/kernel/git/tj/misc into core/memblock
12 Dec, 2011
3 commits
-
Those two APIs were provided to optimize the calls of
tick_nohz_idle_enter() and rcu_idle_enter() into a single
irq disabled section. This way no interrupt happening in-between would
needlessly process any RCU job.Now we are talking about an optimization for which benefits
have yet to be measured. Let's start simple and completely decouple
idle rcu and dyntick idle logics to simplify.Signed-off-by: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Reviewed-by: Josh Triplett
Signed-off-by: Paul E. McKenney -
It is assumed that rcu won't be used once we switch to tickless
mode and until we restart the tick. However this is not always
true, as in x86-64 where we dereference the idle notifiers after
the tick is stopped.To prepare for fixing this, add two new APIs:
tick_nohz_idle_enter_norcu() and tick_nohz_idle_exit_norcu().If no use of RCU is made in the idle loop between
tick_nohz_enter_idle() and tick_nohz_exit_idle() calls, the arch
must instead call the new *_norcu() version such that the arch doesn't
need to call rcu_idle_enter() and rcu_idle_exit().Otherwise the arch must call tick_nohz_enter_idle() and
tick_nohz_exit_idle() and also call explicitly:- rcu_idle_enter() after its last use of RCU before the CPU is put
to sleep.
- rcu_idle_exit() before the first use of RCU after the CPU is woken
up.Signed-off-by: Frederic Weisbecker
Cc: Mike Frysinger
Cc: Guan Xuetao
Cc: David Miller
Cc: Chris Metcalf
Cc: Hans-Christian Egtvedt
Cc: Ralf Baechle
Cc: Paul E. McKenney
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: H. Peter Anvin
Cc: Russell King
Cc: Paul Mackerras
Cc: Heiko Carstens
Cc: Paul Mundt
Signed-off-by: Paul E. McKenney -
The tick_nohz_stop_sched_tick() function, which tries to delay
the next timer tick as long as possible, can be called from two
places:- From the idle loop to start the dytick idle mode
- From interrupt exit if we have interrupted the dyntick
idle mode, so that we reprogram the next tick event in
case the irq changed some internal state that requires this
action.There are only few minor differences between both that
are handled by that function, driven by the ts->inidle
cpu variable and the inidle parameter. The whole guarantees
that we only update the dyntick mode on irq exit if we actually
interrupted the dyntick idle mode, and that we enter in RCU extended
quiescent state from idle loop entry only.Split this function into:
- tick_nohz_idle_enter(), which sets ts->inidle to 1, enters
dynticks idle mode unconditionally if it can, and enters into RCU
extended quiescent state.- tick_nohz_irq_exit() which only updates the dynticks idle mode
when ts->inidle is set (ie: if tick_nohz_idle_enter() has been called).To maintain symmetry, tick_nohz_restart_sched_tick() has been renamed
into tick_nohz_idle_exit().This simplifies the code and micro-optimize the irq exit path (no need
for local_irq_save there). This also prepares for the split between
dynticks and rcu extended quiescent state logics. We'll need this split to
further fix illegal uses of RCU in extended quiescent states in the idle
loop.Signed-off-by: Frederic Weisbecker
Cc: Mike Frysinger
Cc: Guan Xuetao
Cc: David Miller
Cc: Chris Metcalf
Cc: Hans-Christian Egtvedt
Cc: Ralf Baechle
Cc: Paul E. McKenney
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: H. Peter Anvin
Cc: Russell King
Cc: Paul Mackerras
Cc: Heiko Carstens
Cc: Paul Mundt
Signed-off-by: Paul E. McKenney
Reviewed-by: Josh Triplett
09 Dec, 2011
1 commit
-
mips used early_node_map[] just to prime free_area_init_nodes(). Now
memblock can be used for the same purpose and early_node_map[] is
scheduled to be dropped. Use memblock instead.Signed-off-by: Tejun Heo
Acked-by: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: Yinghai Lu
Cc: linux-mips@linux-mips.org
08 Dec, 2011
19 commits
-
Add new processor ID to asm/cpu.h and kernel/cpu-probe.c.
Update to new CPU frequency detection code which works on XLP 3XX
and 8XX.Signed-off-by: Jayachandran C
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2971/
Signed-off-by: Ralf Baechle -
- Add CPU_XLP and NLM_XLR_BOARD to arch/mips/Kconfig for Netlogic XLP boards
- Update mips Makefiles to add XLPSigned-off-by: Jayachandran C
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2968/
Signed-off-by: Ralf Baechle -
Add support for Netlogic's XLP MIPS SoC. This patch adds:
* XLP processor ID in cpu_probe.c and asm/cpu.h
* XLP case to asm/module.h
* CPU_XLP case to mm/tlbex.c
* minor change to r4k cache handling to ignore XLP secondary cache
* XLP cpu overrides to mach-netlogic/cpu-feature-overrides.hSigned-off-by: Jayachandran C
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2966/
Signed-off-by: Ralf Baechle -
Use r4k_wait as the CPU wait function for XLR/XLS processors.
Signed-off-by: Jayachandran C
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2728/
Signed-off-by: Ralf Baechle -
Simplify the code by changing the place of event->destroy().
Signed-off-by: Deng-Cheng Zhu
Cc: Peter Zijlstra
Cc: Paul Mackerras
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Cc: David Daney
Cc: Eyal Barzilay
Cc: Zenon Fortuna
Patchwork: https://patchwork.linux-mips.org/patch/3109/
Signed-off-by: Ralf Baechle -
Why removing pmu checking:
Since 3.2-rc1, when arch level event init is called, the event is already
connected to its PMU. Also, validate_event() is _only_ called by
validate_group() in event init, so there is no need of checking or
temporarily assigning event pmu during validate_group().Why removing event state checking:
Events could be created in PERF_EVENT_STATE_OFF (attr->disabled == 1), when
these events go through this checking, validate_group() does dummy work.
But we do need to do group scheduling emulation for them in event init.
Again, validate_event() is _only_ called by validate_group().Reference: http://www.spinics.net/lists/mips/msg42190.html
Signed-off-by: Deng-Cheng Zhu
Cc: Peter Zijlstra
Cc: Paul Mackerras
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Cc: David Daney
Cc: Eyal Barzilay
Cc: Zenon Fortuna
Patchwork: https://patchwork.linux-mips.org/patch/3108/
Signed-off-by: Ralf Baechle -
Port the following patch for ARM by Mark Rutland:
- 57ce9bb39b476accf8fba6e16aea67ed76ea523d
ARM: 6902/1: perf: Remove erroneous check on active_eventsWhen initialising a PMU, there is a check to protect against races with
other CPUs filling all of the available event slots. Since armpmu_add
checks that an event can be scheduled, we do not need to do this at
initialisation time. Furthermore the current code is broken because it
assumes that atomic_inc_not_zero will unconditionally increment
active_counts and then tries to decrement it again on failure.This patch removes the broken, redundant code.
Signed-off-by: Deng-Cheng Zhu
Cc: Peter Zijlstra
Cc: Paul Mackerras
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Cc: David Daney
Cc: Eyal Barzilay
Cc: Zenon Fortuna
Patchwork: https://patchwork.linux-mips.org/patch/3106/
Signed-off-by: Ralf Baechle -
MIPS licensees may want to modify performance counters to count extra
events. Also, now that the user is working on raw events, the manual is
being used for sure. And feeding unsupported events shouldn't cause
hardware failure and the like.[ralf@linux-mips.org: performance events also being used in internal
performance evaluation and have a tendency to change as the micro-
architecture evolves, even for minor revisions that may not be
distinguishable by PrID. It's not very practicable to maintain a list
of all events and there is no real benefit.]Signed-off-by: Deng-Cheng Zhu
Cc: Peter Zijlstra
Cc: Paul Mackerras
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Cc: David Daney
Cc: Eyal Barzilay
Cc: Zenon Fortuna
Patchwork: https://patchwork.linux-mips.org/patch/3107/
Signed-off-by: Ralf Baechle -
This patch provides support for kprobes on branch instructions. The branch
instruction at the probed address is actually emulated and not executed
out-of-line like other normal instructions. Instead the delay-slot instruction
is copied and single stepped out of line.At the time of probe hit, the original branch instruction is evaluated
and the target cp0_epc is computed similar to compute_retrun_epc(). It
is also checked if the delay slot instruction can be skipped, which is
true if there is a NOP in delay slot or branch is taken in case of
branch likely instructions. Once the delay slot instruction is single
stepped the normal execution resume with the cp0_epc updated the earlier
computed cp0_epc as per the branch instructions.Signed-off-by: Maneesh Soni
Signed-off-by: Victor Kamensky
Cc: David Daney
Cc: ananth@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2914/
Signed-off-by: Ralf Baechle -
This patch refactors MIPS branch emulation code so as to allow skipping
delay slot instruction in case of branch likely instructions when branch is
not taken. This is useful for keeping the code common for use cases like
kprobes where one would like to handle the branch instructions keeping the
delay slot instuction also in picture for branch likely instructions. Also
allow emulation when instruction to be decoded is not at pt_regs->cp0_epc
as in case of kprobes where pt_regs->cp0_epc points to the breakpoint
instruction.The patch also exports the function for modules.
Signed-off-by: Maneesh Soni
Signed-off-by: Victor Kamensky
Cc: David Daney
Cc: ananth@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2913/
Signed-off-by: Ralf Baechle -
As ll/sc instruction are for atomic read-modify-write operations, allowing
probes on top of these insturctions is a bad idea.Signed-off-by: Victor Kamensky
Signed-off-by: Maneesh Soni
Cc: David Daney
Cc: ananth@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2912/
Signed-off-by: Ralf Baechle -
This patch fixes the arch_prepare_kprobe() on MIPS when it tries to find the
instruction at the previous address to the probed address. The oops happens
when the probed address is the first address in a kernel module and there is
no previous address. The patch uses probe_kernel_read() to safely read the
previous instruction.CPU 3 Unable to handle kernel paging request at virtual address ffffffffc0211ffc, epc == ffffffff81113204, ra == ffffffff8111511c
Oops[#1]:
Cpu 3
$ 0 : 0000000000000000 0000000000000001 ffffffffc0212000 0000000000000000
$ 4 : ffffffffc0220030 0000000000000000 0000000000000adf ffffffff81a3f898
$ 8 : ffffffffc0220030 ffffffffffffffff 000000000000ffff 0000000000004821
$12 : 000000000000000a ffffffff81105ddc ffffffff812927d0 0000000000000000
$16 : ffffffff81a40000 ffffffffc0220030 ffffffffc0220030 ffffffffc0212660
$20 : 0000000000000000 0000000000000008 efffffffffffffff ffffffffc0220000
$24 : 0000000000000002 ffffffff8139f5b0
$28 : a800000072adc000 a800000072adfca0 ffffffffc0220000 ffffffff8111511c
Hi : 0000000000000000
Lo : 0000000000000000
epc : ffffffff81113204 arch_prepare_kprobe+0x1c/0xe8
Tainted: P
ra : ffffffff8111511c register_kprobe+0x33c/0x730
Status: 10008ce3 KX SX UX KERNEL EXL IE
Cause : 00800008
BadVA : ffffffffc0211ffc
PrId : 000d9008 (Cavium Octeon II)
Modules linked in: bpa_mem crashinfo pds tun cpumem ipv6 exportfs nfsd OOBnd(P) OOBhal(P) cvmx_mdio cvmx_gpio aipcmod(P) mtsmod procfs(P) utaker_mod dplr_pci hello atomicm_foo [last unloaded: sysmgr_hb]
Process stapio (pid: 5603, threadinfo=a800000072adc000, task=a8000000722e0438, tls=000000002b4bcda0)
Stack : ffffffff81a40000 ffffffff81a40000 ffffffffc0220030 ffffffff8111511c
ffffffffc0218008 0000000000000001 ffffffffc0218008 0000000000000001
ffffffffc0220000 ffffffffc021efe8 1000000000000000 0000000000000008
efffffffffffffff ffffffffc0220000 ffffffffc0220000 ffffffffc021d500
0000000000000022 0000000000000002 1111000072be02b8 0000000000000000
00000000000015e6 00000000000015e6 00000000007d0f00 a800000072be02b8
0000000000000000 ffffffff811d16c8 a80000000382e3b0 ffffffff811d5ba0
ffffffff81b0a270 ffffffff81b0a270 ffffffffc0212000 0000000000000013
ffffffffc0220030 ffffffffc021ed00 a800000089114c80 000000007f90d590
a800000072adfe38 a800000089114c80 0000000010020000 0000000010020000
...
Call Trace:
[] arch_prepare_kprobe+0x1c/0xe8
[] register_kprobe+0x33c/0x730
[] _stp_ctl_write_cmd+0x8e8/0xa88 [atomicm_foo]
[] vfs_write+0xb4/0x178
[] SyS_write+0x58/0x148
[] handle_sysn32+0x44/0x84Code: ffb20010 ffb00000 dc820028 8c500000 0c4449e0 0004203c 14400029 3c048199
Signed-off-by: Maneesh Soni
Signed-off-by: Victor Kamensky
Cc: David Daney
Cc: ananth@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2915/
Signed-off-by: Ralf Baechle -
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled and we even check
and yell when an interrupt handler returns with interrupts enabled (see
commit [b738a50a: genirq: Warn when handler enables interrupts]).So now this flag is a NOOP and can be removed.
[ralf@linux-mips.org: Fixed up conflicts in
arch/mips/alchemy/common/dbdma.c, arch/mips/cavium-octeon/smp.c and
arch/mips/kernel/perf_event.c.]Signed-off-by: Yong Zhang
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de
linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2835/
Signed-off-by: Ralf Baechle -
This patch addresses a couple of related problems:
1) The kernel may reside in physical memory outside of the ranges set
by plat_mem_setup(). If this is the case, init mem cannot be
reused as it resides outside of the range of pages that the kernel
memory allocators control.2) initrd images might be loaded in physical memory outside of the
ranges set by plat_mem_setup(). The memory likewise cannot be
reused. The patch doesn't handle this specific case, but the
infrastructure is useful for future patches that do.The crux of the problem is that there are memory regions that need be
memory_present(), but that cannot be free_bootmem() at the time of
arch_mem_init(). We create a new type of memory (BOOT_MEM_INIT_RAM)
for use with add_memory_region(). Then arch_mem_init() adds the init
mem with this type if the init mem is not already covered by existing
ranges.When memory is being freed into the bootmem allocator, we skip the
BOOT_MEM_INIT_RAM ranges so they are not clobbered, but we do signal
them as memory_present(). This way when they are later freed, the
necessary memory manager structures have initialized and the Sparse
allocater is prevented from crashing.The Octeon specific code that handled this case is removed, because
the new general purpose code handles the case.Signed-off-by: David Daney
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1988/
Signed-off-by: Ralf Baechle -
Initial commit of BMIPS SMP support code. Smoke-tested on a variety of
BMIPS4350, BMIPS4380, and BMIPS5000 platforms.Signed-off-by: Kevin Cernekee
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2977/
Signed-off-by: Ralf Baechle -
Some systems need to relocate the MIPS exception vector base during
trap initialization. Add a hook to make this possible.Signed-off-by: Kevin Cernekee
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2959/
Signed-off-by: Ralf Baechle -
Allow the board support code to register a raw notifier callback for
NMI, similar to what is done for CU2 exceptions.Signed-off-by: Kevin Cernekee
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2958/
Signed-off-by: Ralf Baechle -
Add basic support for the Au1300 variant(s):
- New GPIO/Interrupt controller
- DBDMA ids
- USB setup
- MMC support
- enable various PSC drivers
- detection code.Signed-off-by: Manuel Lauss
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2866/
Signed-off-by: Ralf Baechle -
Panic() invokes printk() to add a \n internally, so panic arguments should
not themselves end in \n. Panic invocations in arch/mips and elsewhere
are inconsistently sometimes terminating in \n, sometimes not.Signed-off-by: Ralf Baechle
06 Dec, 2011
1 commit
-
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix loss of notification with multi-event
perf, x86: Force IBS LVT offset assignment for family 10h
perf, x86: Disable PEBS on SandyBridge chips
trace_events_filter: Use rcu_assign_pointer() when setting ftrace_event_call->filter
perf session: Fix crash with invalid CPU list
perf python: Fix undefined symbol problem
perf/x86: Enable raw event access to Intel offcore events
perf: Don't use -ENOSPC for out of PMU resources
perf: Do not set task_ctx pointer in cpuctx if there are no events in the context
perf/x86: Fix PEBS instruction unwind
oprofile, x86: Fix crash when unloading module (nmi timer mode)
oprofile: Fix crash when unloading module (hr timer mode)
14 Nov, 2011
1 commit
-
People (Linus) objected to using -ENOSPC to signal not having enough
resources on the PMU to satisfy the request. Use -EINVAL.Requested-by: Linus Torvalds
Cc: Stephane Eranian
Cc: Will Deacon
Cc: Deng-Cheng Zhu
Cc: David Daney
Cc: Ralf Baechle
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/n/tip-xv8geaz2zpbjhlx0svmpp28n@git.kernel.org
[ merged to newer kernel, fixed up MIPS impact ]
Signed-off-by: Ingo Molnar
11 Nov, 2011
2 commits
-
I am running SMP Linux 2.6.37-rc1 on BMIPS5000 (single core dual thread)
and observe some abnormalities when doing system suspend/resume which I
narrowed down to cpu hotplugging. The suspend brings the second thread
processor down and then restarts it, after which I see memory corruption
in userspace. I started digging and found out that problem occurs because
while doing execve() the child process is getting the same ASID as the
parent, which obviously corrupts parent's address space.Further digging showed that activate_mm() calls get_new_mmu_context() to
get a new ASID, but at this time ASID field in entryHi is 1, and
asid_cache(cpu) is 0x100 (it was just reset to ASID_FIRST_VERSION when
the secondary TP was booting).So, get_new_mmu_context() increments the asid_cache(cpu) value to
0x101, and thus puts 0x01 into entryHi. The result - ASID field does
not get changed as it was supposed to.My solution is very simple - do not reset asid_cache(cpu) on TP warm
restart.Patchwork: https://patchwork.linux-mips.org/patch/1797/
Signed-off-by: Ralf Baechle -
Fix the following compilation failure with v3.2-rc1 by including module.h:
CC [M] arch/mips/kernel/cpufreq/loongson2_clock.o
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:168:15: error: expected declaration specifiers or '...' before string constant
arch/mips/kernel/cpufreq/loongson2_clock.c:169:20: error: expected declaration specifiers or '...' before string constant
arch/mips/kernel/cpufreq/loongson2_clock.c:170:16: error: expected declaration specifiers or '...' before string constantSigned-off-by: Aaro Koskinen
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2922/
Signed-off-by: Ralf Baechle
09 Nov, 2011
2 commits
-
Signed-off-by: David Daney
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2918/
Signed-off-by: Ralf Baechle -
The Kernel hangs occasionally during boot after "Calibrating delay loop..".
This is caused by the c0_compare_int_usable() routine in cevt-r4k.c
returning false which causes the system to disable the timer and hang later.
The false return happens because the routine is using a series of four calls
to irq_disable_hazard() as a delay while it waits for the timer changes to
propagate to the cp0 cause register. On newer MIPS cores, like the 74K, the
series of irq_disable_hazard() calls turn into ehb instructions and can take
as little as a few clock ticks for all 4 instructions. This is not enough of
a delay, so the routine thinks the timer is not working. This fix uses up
to a max number of cycle counter ticks for the delay and uses
back_to_back_c0_hazard() instead of irq_disable_hazard() to handle the
hazard condition between cp0 writes and cp0 reads.Signed-off-by: Al Cooper
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2911/
Signed-off-by: Ralf Baechle
07 Nov, 2011
1 commit
-
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include
net: sch_generic remove redundant use of
net: inet_timewait_sock doesnt need
...Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
01 Nov, 2011
2 commits
-
Or else we get lots of variations on this:
arch/mips/pci/pci.c:330: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
scattered throughout the build.
Signed-off-by: Paul Gortmaker
-
None of these files are using modular infrastructure, and build
tests reveal that none of these files are really relying on any
implicit inclusions via. module.h either. So delete them.Signed-off-by: Paul Gortmaker
