Merge branch 'linus' into perf/core, to refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2017-09-28 09:22:50 +02:00
commit 4f56186ec0
412 changed files with 6494 additions and 2578 deletions

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@ -32,7 +32,7 @@ Example:
compatible = "st,stm32h743-rcc", "st,stm32-rcc";
reg = <0x58024400 0x400>;
#reset-cells = <1>;
#clock-cells = <2>;
#clock-cells = <1>;
clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s_ckin>;
st,syscfg = <&pwrcfg>;

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@ -8,6 +8,12 @@ Required properties:
the firmware event log
- linux,sml-size : size of the memory allocated for the firmware event log
Optional properties:
- powered-while-suspended: present when the TPM is left powered on between
suspend and resume (makes the suspend/resume
callbacks do nothing).
Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C)
----------------------------------------------------------

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@ -3,8 +3,8 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order.
This isn't an exhaustive list, but you should add new prefixes to it before
using them to avoid name-space collisions.
abcn Abracon Corporation
abilis Abilis Systems
abracon Abracon Corporation
actions Actions Semiconductor Co., Ltd.
active-semi Active-Semi International Inc
ad Avionic Design GmbH

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@ -675,7 +675,7 @@ sub-domain of the parent domain.
Support for power domains is provided through the :c:member:`pm_domain` field of
|struct device|. This field is a pointer to an object of type
|struct dev_pm_domain|, defined in :file:`include/linux/pm.h``, providing a set
|struct dev_pm_domain|, defined in :file:`include/linux/pm.h`, providing a set
of power management callbacks analogous to the subsystem-level and device driver
callbacks that are executed for the given device during all power transitions,
instead of the respective subsystem-level callbacks. Specifically, if a

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@ -337,7 +337,7 @@ Examples for low-level BPF:
jeq #14, good /* __NR_rt_sigprocmask */
jeq #13, good /* __NR_rt_sigaction */
jeq #35, good /* __NR_nanosleep */
bad: ret #0 /* SECCOMP_RET_KILL */
bad: ret #0 /* SECCOMP_RET_KILL_THREAD */
good: ret #0x7fff0000 /* SECCOMP_RET_ALLOW */
The above example code can be placed into a file (here called "foo"), and

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@ -1680,6 +1680,9 @@ accept_dad - INTEGER
2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
link-local address has been found.
DAD operation and mode on a given interface will be selected according
to the maximum value of conf/{all,interface}/accept_dad.
force_tllao - BOOLEAN
Enable sending the target link-layer address option even when
responding to a unicast neighbor solicitation.
@ -1727,16 +1730,23 @@ suppress_frag_ndisc - INTEGER
optimistic_dad - BOOLEAN
Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
0: disabled (default)
1: enabled
0: disabled (default)
1: enabled
Optimistic Duplicate Address Detection for the interface will be enabled
if at least one of conf/{all,interface}/optimistic_dad is set to 1,
it will be disabled otherwise.
use_optimistic - BOOLEAN
If enabled, do not classify optimistic addresses as deprecated during
source address selection. Preferred addresses will still be chosen
before optimistic addresses, subject to other ranking in the source
address selection algorithm.
0: disabled (default)
1: enabled
0: disabled (default)
1: enabled
This will be enabled if at least one of
conf/{all,interface}/use_optimistic is set to 1, disabled otherwise.
stable_secret - IPv6 address
This IPv6 address will be used as a secret to generate IPv6

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@ -13,42 +13,42 @@ an example setup using a data-center-class switch ASIC chip. Other setups
with SR-IOV or soft switches, such as OVS, are possible.
User-spacetools
User-space tools
userspace|
+-------------------------------------------------------------------+
kernel|Netlink
|
+--------------+-------------------------------+
|Networkstack|
|(Linux)|
||
+----------------------------------------------+
user space |
+-------------------------------------------------------------------+
kernel | Netlink
|
+--------------+-------------------------------+
| Network stack |
| (Linux) |
| |
+----------------------------------------------+
sw1p2 sw1p4 sw1p6
sw1p1 + sw1p3 + sw1p5 + eth1
+|+|+|+
|||||||
+--+----+----+----+-+--+----+---++-----+-----+
|Switchdriver||mgmt|
|(thisdocument)||driver|
||||
+--------------+----------------++-----------+
|
kernel|HWbus(egPCI)
+-------------------------------------------------------------------+
hardware|
+--------------+---+------------+
|Switchdevice (sw1)|
|+----++--------+
||voffloadeddatapath|mgmtport
||||
+--|----|----+----+----+----+---+
||||||
++++++
p1p2p3p4p5p6
sw1p1 + sw1p3 + sw1p5 + eth1
+ | + | + | +
| | | | | | |
+--+----+----+----+----+----+---+ +-----+-----+
| Switch driver | | mgmt |
| (this document) | | driver |
| | | |
+--------------+----------------+ +-----------+
|
kernel | HW bus (eg PCI)
+-------------------------------------------------------------------+
hardware |
+--------------+----------------+
| Switch device (sw1) |
| +----+ +--------+
| | v offloaded data path | mgmt port
| | | |
+--|----|----+----+----+----+---+
| | | | | |
+ + + + + +
p1 p2 p3 p4 p5 p6
front-panelports
front-panel ports
Fig 1.

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@ -75,6 +75,7 @@ show up in /proc/sys/kernel:
- reboot-cmd [ SPARC only ]
- rtsig-max
- rtsig-nr
- seccomp/ ==> Documentation/userspace-api/seccomp_filter.rst
- sem
- sem_next_id [ sysv ipc ]
- sg-big-buff [ generic SCSI device (sg) ]

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@ -87,11 +87,16 @@ Return values
A seccomp filter may return any of the following values. If multiple
filters exist, the return value for the evaluation of a given system
call will always use the highest precedent value. (For example,
``SECCOMP_RET_KILL`` will always take precedence.)
``SECCOMP_RET_KILL_PROCESS`` will always take precedence.)
In precedence order, they are:
``SECCOMP_RET_KILL``:
``SECCOMP_RET_KILL_PROCESS``:
Results in the entire process exiting immediately without executing
the system call. The exit status of the task (``status & 0x7f``)
will be ``SIGSYS``, not ``SIGKILL``.
``SECCOMP_RET_KILL_THREAD``:
Results in the task exiting immediately without executing the
system call. The exit status of the task (``status & 0x7f``) will
be ``SIGSYS``, not ``SIGKILL``.
@ -141,6 +146,15 @@ In precedence order, they are:
allow use of ptrace, even of other sandboxed processes, without
extreme care; ptracers can use this mechanism to escape.)
``SECCOMP_RET_LOG``:
Results in the system call being executed after it is logged. This
should be used by application developers to learn which syscalls their
application needs without having to iterate through multiple test and
development cycles to build the list.
This action will only be logged if "log" is present in the
actions_logged sysctl string.
``SECCOMP_RET_ALLOW``:
Results in the system call being executed.
@ -169,7 +183,41 @@ The ``samples/seccomp/`` directory contains both an x86-specific example
and a more generic example of a higher level macro interface for BPF
program generation.
Sysctls
=======
Seccomp's sysctl files can be found in the ``/proc/sys/kernel/seccomp/``
directory. Here's a description of each file in that directory:
``actions_avail``:
A read-only ordered list of seccomp return values (refer to the
``SECCOMP_RET_*`` macros above) in string form. The ordering, from
left-to-right, is the least permissive return value to the most
permissive return value.
The list represents the set of seccomp return values supported
by the kernel. A userspace program may use this list to
determine if the actions found in the ``seccomp.h``, when the
program was built, differs from the set of actions actually
supported in the current running kernel.
``actions_logged``:
A read-write ordered list of seccomp return values (refer to the
``SECCOMP_RET_*`` macros above) that are allowed to be logged. Writes
to the file do not need to be in ordered form but reads from the file
will be ordered in the same way as the actions_avail sysctl.
It is important to note that the value of ``actions_logged`` does not
prevent certain actions from being logged when the audit subsystem is
configured to audit a task. If the action is not found in
``actions_logged`` list, the final decision on whether to audit the
action for that task is ultimately left up to the audit subsystem to
decide for all seccomp return values other than ``SECCOMP_RET_ALLOW``.
The ``allow`` string is not accepted in the ``actions_logged`` sysctl
as it is not possible to log ``SECCOMP_RET_ALLOW`` actions. Attempting
to write ``allow`` to the sysctl will result in an EINVAL being
returned.
Adding architecture support
===========================

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@ -352,6 +352,18 @@ L: linux-acpi@vger.kernel.org
S: Maintained
F: drivers/acpi/arm64
ACPI PMIC DRIVERS
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Len Brown <lenb@kernel.org>
R: Andy Shevchenko <andy@infradead.org>
R: Mika Westerberg <mika.westerberg@linux.intel.com>
L: linux-acpi@vger.kernel.org
Q: https://patchwork.kernel.org/project/linux-acpi/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
B: https://bugzilla.kernel.org
S: Supported
F: drivers/acpi/pmic/
ACPI THERMAL DRIVER
M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
@ -2853,7 +2865,6 @@ S: Supported
F: drivers/scsi/bnx2i/
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
M: Yuval Mintz <Yuval.Mintz@cavium.com>
M: Ariel Elior <ariel.elior@cavium.com>
M: everest-linux-l2@cavium.com
L: netdev@vger.kernel.org
@ -6643,8 +6654,8 @@ M: Alexander Aring <alex.aring@gmail.com>
M: Stefan Schmidt <stefan@osg.samsung.com>
L: linux-wpan@vger.kernel.org
W: http://wpan.cakelab.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next.git
S: Maintained
F: net/ieee802154/
F: net/mac802154/
@ -11047,7 +11058,6 @@ S: Supported
F: drivers/scsi/qedi/
QLOGIC QL4xxx ETHERNET DRIVER
M: Yuval Mintz <Yuval.Mintz@cavium.com>
M: Ariel Elior <Ariel.Elior@cavium.com>
M: everest-linux-l2@cavium.com
L: netdev@vger.kernel.org

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@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 14
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc2
NAME = Fearless Coyote
# *DOCUMENTATION*
@ -1172,11 +1172,11 @@ headers_check: headers_install
PHONY += kselftest
kselftest:
$(Q)$(MAKE) -C tools/testing/selftests run_tests
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
PHONY += kselftest-clean
kselftest-clean:
$(Q)$(MAKE) -C tools/testing/selftests clean
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests clean
PHONY += kselftest-merge
kselftest-merge:

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@ -78,9 +78,6 @@ struct task_struct;
#endif
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp)

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@ -139,11 +139,10 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_UPROBE 3 /* breakpointed or singlestepping */
#define TIF_FSCHECK 4 /* Check FS is USER_DS on return */
#define TIF_SYSCALL_TRACE 5 /* syscall trace active */
#define TIF_SYSCALL_AUDIT 6 /* syscall auditing active */
#define TIF_SYSCALL_TRACEPOINT 7 /* syscall tracepoint instrumentation */
#define TIF_SECCOMP 8 /* seccomp syscall filtering active */
#define TIF_SYSCALL_TRACE 4 /* syscall trace active */
#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */
#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */
#define TIF_SECCOMP 7 /* seccomp syscall filtering active */
#define TIF_NOHZ 12 /* in adaptive nohz mode */
#define TIF_USING_IWMMXT 17
@ -154,7 +153,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_UPROBE (1 << TIF_UPROBE)
#define _TIF_FSCHECK (1 << TIF_FSCHECK)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
@ -168,9 +166,8 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
/*
* Change these and you break ASM code in entry-common.S
*/
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
_TIF_NOTIFY_RESUME | _TIF_UPROBE | \
_TIF_FSCHECK)
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
_TIF_NOTIFY_RESUME | _TIF_UPROBE)
#endif /* __KERNEL__ */
#endif /* __ASM_ARM_THREAD_INFO_H */

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@ -70,8 +70,6 @@ static inline void set_fs(mm_segment_t fs)
{
current_thread_info()->addr_limit = fs;
modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
/* On user-mode return, check fs is correct */
set_thread_flag(TIF_FSCHECK);
}
#define segment_eq(a, b) ((a) == (b))

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@ -12,6 +12,7 @@
#include <asm/unistd.h>
#include <asm/ftrace.h>
#include <asm/unwind.h>
#include <asm/memory.h>
#ifdef CONFIG_AEABI
#include <asm/unistd-oabi.h>
#endif
@ -48,12 +49,14 @@ ret_fast_syscall:
UNWIND(.fnstart )
UNWIND(.cantunwind )
disable_irq_notrace @ disable interrupts
ldr r2, [tsk, #TI_ADDR_LIMIT]
cmp r2, #TASK_SIZE
blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
tst r1, #_TIF_SYSCALL_WORK
bne fast_work_pending
tst r1, #_TIF_WORK_MASK
tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
bne fast_work_pending
/* perform architecture specific actions before user return */
arch_ret_to_user r1, lr
@ -76,16 +79,16 @@ ret_fast_syscall:
UNWIND(.cantunwind )
str r0, [sp, #S_R0 + S_OFF]! @ save returned r0
disable_irq_notrace @ disable interrupts
ldr r2, [tsk, #TI_ADDR_LIMIT]
cmp r2, #TASK_SIZE
blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
tst r1, #_TIF_SYSCALL_WORK
bne fast_work_pending
tst r1, #_TIF_WORK_MASK
tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
beq no_work_pending
UNWIND(.fnend )
ENDPROC(ret_fast_syscall)
/* Slower path - fall through to work_pending */
fast_work_pending:
#endif
tst r1, #_TIF_SYSCALL_WORK
@ -111,6 +114,9 @@ ENTRY(ret_to_user)
ret_slow_syscall:
disable_irq_notrace @ disable interrupts
ENTRY(ret_to_user_from_irq)
ldr r2, [tsk, #TI_ADDR_LIMIT]
cmp r2, #TASK_SIZE
blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS]
tst r1, #_TIF_WORK_MASK
bne slow_work_pending

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@ -614,10 +614,6 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
* Update the trace code with the current status.
*/
trace_hardirqs_off();
/* Check valid user FS if needed */
addr_limit_user_check();
do {
if (likely(thread_flags & _TIF_NEED_RESCHED)) {
schedule();
@ -678,3 +674,9 @@ struct page *get_signal_page(void)
return page;
}
/* Defer to generic check */
asmlinkage void addr_limit_check_failed(void)
{
addr_limit_user_check();
}

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@ -50,17 +50,22 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
KBUILD_AFLAGS += $(lseinstr) $(brokengasinst)
KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
KBUILD_AFLAGS += $(call cc-option,-mabi=lp64)
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
KBUILD_CPPFLAGS += -mbig-endian
CHECKFLAGS += -D__AARCH64EB__
AS += -EB
LD += -EB
LDFLAGS += -maarch64linuxb
UTS_MACHINE := aarch64_be
else
KBUILD_CPPFLAGS += -mlittle-endian
CHECKFLAGS += -D__AARCH64EL__
AS += -EL
LD += -EL
LDFLAGS += -maarch64linux
UTS_MACHINE := aarch64
endif

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@ -1,7 +1,7 @@
#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
#define __ALIGN .align 4
#define __ALIGN_STR ".align 4"
#define __ALIGN .align 2
#define __ALIGN_STR ".align 2"
#endif

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@ -321,6 +321,8 @@ void kernel_neon_end(void)
}
EXPORT_SYMBOL(kernel_neon_end);
#ifdef CONFIG_EFI
static DEFINE_PER_CPU(struct fpsimd_state, efi_fpsimd_state);
static DEFINE_PER_CPU(bool, efi_fpsimd_state_used);
@ -370,6 +372,8 @@ void __efi_fpsimd_end(void)
kernel_neon_end();
}
#endif /* CONFIG_EFI */
#endif /* CONFIG_KERNEL_MODE_NEON */
#ifdef CONFIG_CPU_PM

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@ -751,10 +751,10 @@ asmlinkage void do_notify_resume(struct pt_regs *regs,
*/
trace_hardirqs_off();
/* Check valid user FS if needed */
addr_limit_user_check();
do {
/* Check valid user FS if needed */
addr_limit_user_check();
if (thread_flags & _TIF_NEED_RESCHED) {
schedule();
} else {

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@ -92,9 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
/*
* saved kernel SP and DP of a blocked thread.
*/

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@ -92,10 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
extern asmlinkage void save_user_regs(struct user_context *target);
extern asmlinkage void *restore_user_regs(const struct user_context *target, ...);
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define forget_segments() do { } while (0)
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.frame0->pc)

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@ -118,14 +118,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
/* Copy and release all segment info associated with a VM */
extern void copy_segments(struct task_struct *p, struct mm_struct * mm);
extern void release_segments(struct mm_struct * mm);
/* Copy and release all segment info associated with a VM */
#define copy_segments(p, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.lr)
#define KSTK_ESP(tsk) ((tsk)->thread.sp)

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@ -131,9 +131,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
/*
* Return saved PC of a blocked thread.
*/

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@ -39,7 +39,7 @@ config MICROBLAZE
# Endianness selection
choice
prompt "Endianness selection"
default CPU_BIG_ENDIAN
default CPU_LITTLE_ENDIAN
help
microblaze architectures can be configured for either little or
big endian formats. Be sure to select the appropriate mode.

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@ -7,6 +7,7 @@ generic-y += fcntl.h
generic-y += ioctl.h
generic-y += ioctls.h
generic-y += ipcbuf.h
generic-y += kvm_para.h
generic-y += mman.h
generic-y += msgbuf.h
generic-y += param.h

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@ -165,7 +165,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
unsigned long attrs)
{
#ifdef CONFIG_MMU
unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
unsigned long user_count = vma_pages(vma);
unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long off = vma->vm_pgoff;
unsigned long pfn;

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@ -22,10 +22,10 @@
#include "pci.h"
static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
static const struct ath79_pci_irq *ath79_pci_irq_map __initdata;
static unsigned ath79_pci_nr_irqs __initdata;
static const struct ath79_pci_irq *ath79_pci_irq_map;
static unsigned ath79_pci_nr_irqs;
static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
static const struct ath79_pci_irq ar71xx_pci_irq_map[] = {
{
.slot = 17,
.pin = 1,
@ -41,7 +41,7 @@ static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
}
};
static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
static const struct ath79_pci_irq ar724x_pci_irq_map[] = {
{
.slot = 0,
.pin = 1,
@ -49,7 +49,7 @@ static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
}
};
static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
static const struct ath79_pci_irq qca955x_pci_irq_map[] = {
{
.bus = 0,
.slot = 0,
@ -64,7 +64,7 @@ static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
},
};
int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
int pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
{
int irq = -1;
int i;

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@ -1377,29 +1377,32 @@ do { \
#define __write_64bit_c0_split(source, sel, val) \
do { \
unsigned long long __tmp; \
unsigned long __flags; \
\
local_irq_save(__flags); \
if (sel == 0) \
__asm__ __volatile__( \
".set\tmips64\n\t" \
"dsll\t%L0, %L0, 32\n\t" \
"dsll\t%L0, %L1, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
"dsll\t%M0, %M0, 32\n\t" \
"dsll\t%M0, %M1, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source "\n\t" \
".set\tmips0" \
: : "r" (val)); \
: "=&r,r" (__tmp) \
: "r,0" (val)); \
else \
__asm__ __volatile__( \
".set\tmips64\n\t" \
"dsll\t%L0, %L0, 32\n\t" \
"dsll\t%L0, %L1, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
"dsll\t%M0, %M0, 32\n\t" \
"dsll\t%M0, %M1, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source ", " #sel "\n\t" \
".set\tmips0" \
: : "r" (val)); \
: "=&r,r" (__tmp) \
: "r,0" (val)); \
local_irq_restore(__flags); \
} while (0)

View File

@ -618,8 +618,7 @@ static int mipspmu_event_init(struct perf_event *event)
return -ENOENT;
}
if ((unsigned int)event->cpu >= nr_cpumask_bits ||
(event->cpu >= 0 && !cpu_online(event->cpu)))
if (event->cpu >= 0 && !cpu_online(event->cpu))
return -ENODEV;
if (!atomic_inc_not_zero(&active_events)) {

View File

@ -32,13 +32,13 @@
#define INTC PC104PLUS_INTC_IRQ
#define INTD PC104PLUS_INTD_IRQ
static char irq_tab_capcella[][5] __initdata = {
static char irq_tab_capcella[][5] = {
[11] = { -1, INT1, INT1, INT1, INT1 },
[12] = { -1, INT2, INT2, INT2, INT2 },
[14] = { -1, INTA, INTB, INTC, INTD }
};
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_tab_capcella[slot][pin];
}

View File

@ -147,7 +147,7 @@ static void qube_raq_via_board_id_fixup(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0,
qube_raq_via_board_id_fixup);
static char irq_tab_qube1[] __initdata = {
static char irq_tab_qube1[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = QUBE1_ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@ -156,7 +156,7 @@ static char irq_tab_qube1[] __initdata = {
[COBALT_PCICONF_ETH1] = 0
};
static char irq_tab_cobalt[] __initdata = {
static char irq_tab_cobalt[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@ -165,7 +165,7 @@ static char irq_tab_cobalt[] __initdata = {
[COBALT_PCICONF_ETH1] = ETH1_IRQ
};
static char irq_tab_raq2[] __initdata = {
static char irq_tab_raq2[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = RAQ2_SCSI_IRQ,
@ -174,7 +174,7 @@ static char irq_tab_raq2[] __initdata = {
[COBALT_PCICONF_ETH1] = ETH1_IRQ
};
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
return irq_tab_qube1[slot];

View File

@ -43,7 +43,7 @@
*/
#define MAX_SLOT_NUM 10
static unsigned char irq_map[][5] __initdata = {
static unsigned char irq_map[][5] = {
[3] = {0, MARKEINS_PCI_IRQ_INTB, MARKEINS_PCI_IRQ_INTC,
MARKEINS_PCI_IRQ_INTD, 0,},
[4] = {0, MARKEINS_PCI_IRQ_INTA, 0, 0, 0,},
@ -85,7 +85,7 @@ static void emma2rh_pci_host_fixup(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
emma2rh_pci_host_fixup);
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_map[slot][pin];
}

View File

@ -19,7 +19,7 @@
/* South bridge slot number is set by the pci probe process */
static u8 sb_slot = 5;
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = 0;

View File

@ -21,7 +21,7 @@
#define INTB MACEPCI_SHARED0_IRQ
#define INTC MACEPCI_SHARED1_IRQ
#define INTD MACEPCI_SHARED2_IRQ
static char irq_tab_mace[][5] __initdata = {
static char irq_tab_mace[][5] = {
/* Dummy INT#A INT#B INT#C INT#D */
{0, 0, 0, 0, 0}, /* This is placeholder row - never used */
{0, SCSI0, SCSI0, SCSI0, SCSI0},
@ -39,7 +39,7 @@ static char irq_tab_mace[][5] __initdata = {
* irqs. I suppose a device without a pin A will thank us for doing it
* right if there exists such a broken piece of crap.
*/
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_tab_mace[slot][pin];
}

View File

@ -31,7 +31,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/jmr3927.h>
int __init jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;

View File

@ -23,7 +23,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
return 0;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return of_irq_parse_and_map_pci(dev, slot, pin);
}

View File

@ -30,7 +30,7 @@
#define PCID 7
/* all the pci device has the PCIA pin, check the datasheet. */
static char irq_tab[][5] __initdata = {
static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0}, /* 11: Unused */
{0, 0, 0, 0, 0}, /* 12: Unused */
@ -51,7 +51,7 @@ static char irq_tab[][5] __initdata = {
{0, 0, 0, 0, 0}, /* 27: Unused */
};
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int virq;

View File

@ -32,7 +32,7 @@ static void print_fixup_info(const struct pci_dev *pdev)
pdev->vendor, pdev->device, pdev->irq);
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
print_fixup_info(dev);
return dev->irq;

View File

@ -12,7 +12,7 @@
static char pci_irq[5] = {
};
static char irq_tab[][5] __initdata = {
static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* 0: GT64120 PCI bridge */
{0, 0, 0, 0, 0 }, /* 1: Unused */
@ -38,7 +38,7 @@ static char irq_tab[][5] __initdata = {
{0, PCID, PCIA, PCIB, PCIC } /* 21: PCI Slot 4 */
};
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int virq;
virq = irq_tab[slot][pin];

View File

@ -22,19 +22,19 @@
#include <asm/vr41xx/mpc30x.h>
static const int internal_func_irqs[] __initconst = {
static const int internal_func_irqs[] = {
VRC4173_CASCADE_IRQ,
VRC4173_AC97_IRQ,
VRC4173_USB_IRQ,
};
static const int irq_tab_mpc30x[] __initconst = {
static const int irq_tab_mpc30x[] = {
[12] = VRC4173_PCMCIA1_IRQ,
[13] = VRC4173_PCMCIA2_IRQ,
[29] = MQ200_IRQ,
};
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (slot == 30)
return internal_func_irqs[PCI_FUNC(dev->devfn)];

View File

@ -47,7 +47,7 @@
#if defined(CONFIG_PMC_MSP7120_GW)
/* Garibaldi Board IRQ wiring to PCI slots */
static char irq_tab[][5] __initdata = {
static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@ -86,7 +86,7 @@ static char irq_tab[][5] __initdata = {
#elif defined(CONFIG_PMC_MSP7120_EVAL)
/* MSP7120 Eval Board IRQ wiring to PCI slots */
static char irq_tab[][5] __initdata = {
static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@ -125,7 +125,7 @@ static char irq_tab[][5] __initdata = {
#else
/* Unknown board -- don't assign any IRQs */
static char irq_tab[][5] __initdata = {
static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@ -202,7 +202,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
* RETURNS: IRQ number
*
****************************************************************************/
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
#if !defined(CONFIG_PMC_MSP7120_GW) && !defined(CONFIG_PMC_MSP7120_EVAL)
printk(KERN_WARNING "PCI: unknown board, no PCI IRQs assigned.\n");

View File

@ -36,7 +36,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4927.h>
int __init rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;

View File

@ -13,7 +13,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4938.h>
int __init rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = tx4938_pcic1_map_irq(dev, slot);

View File

@ -40,7 +40,7 @@
* seem to be a documentation error. At least on my RM200C the Cirrus
* Logic CL-GD5434 VGA is device 3.
*/
static char irq_tab_rm200[8][5] __initdata = {
static char irq_tab_rm200[8][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* EISA bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@ -57,7 +57,7 @@ static char irq_tab_rm200[8][5] __initdata = {
*
* The VGA card is optional for RM300 systems.
*/
static char irq_tab_rm300d[8][5] __initdata = {
static char irq_tab_rm300d[8][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* EISA bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@ -69,7 +69,7 @@ static char irq_tab_rm300d[8][5] __initdata = {
{ 0, INTD, INTA, INTB, INTC }, /* Slot 4 */
};
static char irq_tab_rm300e[5][5] __initdata = {
static char irq_tab_rm300e[5][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@ -96,7 +96,7 @@ static char irq_tab_rm300e[5][5] __initdata = {
#define INTC PCIT_IRQ_INTC
#define INTD PCIT_IRQ_INTD
static char irq_tab_pcit[13][5] __initdata = {
static char irq_tab_pcit[13][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ SCSI0, SCSI0, SCSI0, SCSI0, SCSI0 }, /* SCSI */
@ -113,7 +113,7 @@ static char irq_tab_pcit[13][5] __initdata = {
{ 0, INTA, INTB, INTC, INTD }, /* Slot 5 */
};
static char irq_tab_pcit_cplus[13][5] __initdata = {
static char irq_tab_pcit_cplus[13][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ 0, INTB, INTC, INTD, INTA }, /* PCI Slot 9 */
@ -130,7 +130,7 @@ static inline int is_rm300_revd(void)
return (csmsr & 0xa0) == 0x20;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
switch (sni_brd_type) {
case SNI_BRD_PCI_TOWER_CPLUS:

View File

@ -23,7 +23,7 @@
#include <asm/vr41xx/tb0219.h>
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = -1;

View File

@ -23,7 +23,7 @@
#include <asm/vr41xx/giu.h>
#include <asm/vr41xx/tb0226.h>
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = -1;

View File

@ -22,7 +22,7 @@
#include <asm/vr41xx/tb0287.h>
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char bus;
int irq = -1;

View File

@ -522,7 +522,7 @@ static int __init alchemy_pci_init(void)
arch_initcall(alchemy_pci_init);
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct alchemy_pci_context *ctx = dev->sysdata;
if (ctx && ctx->board_map_irq)

View File

@ -28,7 +28,7 @@
#include <linux/bcma/bcma.h>
#include <bcm47xx.h>
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return 0;
}

View File

@ -61,7 +61,7 @@ arch_initcall(lasat_pci_setup);
#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
switch (slot) {
case 1:

View File

@ -361,7 +361,7 @@ static int mt7620_pci_probe(struct platform_device *pdev)
return 0;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
u16 cmd;
u32 val;

View File

@ -59,8 +59,7 @@ union octeon_pci_address {
} s;
};
int __initconst (*octeon_pcibios_map_irq)(const struct pci_dev *dev,
u8 slot, u8 pin);
int (*octeon_pcibios_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
/**
@ -74,7 +73,7 @@ enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
* as it goes through each bridge.
* Returns Interrupt number for the device
*/
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (octeon_pcibios_map_irq)
return octeon_pcibios_map_irq(dev, slot, pin);

View File

@ -181,7 +181,7 @@ static inline void rt2880_pci_write_u32(unsigned long reg, u32 val)
spin_unlock_irqrestore(&rt2880_pci_lock, flags);
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
u16 cmd;
int irq = -1;

View File

@ -564,7 +564,7 @@ static int rt3883_pci_probe(struct platform_device *pdev)
return err;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return of_irq_parse_and_map_pci(dev, slot, pin);
}

View File

@ -112,7 +112,7 @@ int __init tx4938_pciclk66_setup(void)
return pciclk;
}
int __init tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4938_pcic1ptr) {
switch (slot) {

View File

@ -48,7 +48,7 @@ void __init tx4939_report_pci1clk(void)
((pciclk + 50000) / 100000) % 10);
}
int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
int tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
switch (slot) {
@ -68,7 +68,7 @@ int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
return -1;
}
int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = tx4939_pcic1_map_irq(dev, slot);

View File

@ -205,7 +205,7 @@ int xlp_socdev_to_node(const struct pci_dev *lnkdev)
return PCI_SLOT(lnkdev->devfn) / 8;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct pci_dev *lnkdev;
int lnkfunc, node;

View File

@ -315,7 +315,7 @@ static void xls_pcie_ack_b(struct irq_data *d)
}
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return get_irq_vector(dev);
}

View File

@ -1464,8 +1464,7 @@ static int cvmx_pcie_rc_initialize(int pcie_port)
* as it goes through each bridge.
* Returns Interrupt number for the device
*/
int __init octeon_pcie_pcibios_map_irq(const struct pci_dev *dev,
u8 slot, u8 pin)
int octeon_pcie_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
/*
* The EBH5600 board with the PCI to PCIe bridge mistakenly

View File

@ -22,6 +22,8 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <asm/setup.h>
#ifdef CONFIG_MIPS_MT_SMP
#define MIPS_CPU_IPI_RESCHED_IRQ 0 /* SW int 0 for resched */
#define MIPS_CPU_IPI_CALL_IRQ 1 /* SW int 1 for call */

View File

@ -386,9 +386,10 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
return 0;
}
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
static int (*txx9_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return txx9_board_vec->pci_map_irq(dev, slot, pin);
return txx9_pci_map_irq(dev, slot, pin);
}
char * (*txx9_board_pcibios_setup)(char *str) __initdata;
@ -424,5 +425,8 @@ char *__init txx9_pcibios_setup(char *str)
txx9_pci_err_action = TXX9_PCI_ERR_IGNORE;
return NULL;
}
txx9_pci_map_irq = txx9_board_vec->pci_map_irq;
return str;
}

View File

@ -59,10 +59,6 @@ void arch_cpu_idle(void)
}
#endif
void release_segments(struct mm_struct *mm)
{
}
void machine_restart(char *cmd)
{
#ifdef CONFIG_KERNEL_DEBUGGER
@ -112,14 +108,6 @@ void release_thread(struct task_struct *dead_task)
{
}
/*
* we do not have to muck with descriptors here, that is
* done in switch_mm() as needed.
*/
void copy_segments(struct task_struct *p, struct mm_struct *new_mm)
{
}
/*
* this gets called so that we can store lazy state into memory and copy the
* current task into the new thread.

View File

@ -257,6 +257,18 @@ config PARISC_PAGE_SIZE_64KB
endchoice
config PARISC_SELF_EXTRACT
bool "Build kernel as self-extracting executable"
default y
help
Say Y if you want to build the parisc kernel as a kind of
self-extracting executable.
If you say N here, the kernel will be compressed with gzip
which can be loaded by the palo bootloader directly too.
If you don't know what to do here, say Y.
config SMP
bool "Symmetric multi-processing support"
---help---

View File

@ -129,8 +129,13 @@ Image: vmlinux
bzImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
ifdef CONFIG_PARISC_SELF_EXTRACT
vmlinuz: bzImage
$(OBJCOPY) $(boot)/bzImage $@
else
vmlinuz: vmlinux
@gzip -cf -9 $< > $@
endif
install:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \

View File

@ -15,7 +15,7 @@ targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs
KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
ifndef CONFIG_64BIT
KBUILD_CFLAGS += -mfast-indirect-calls
endif

View File

@ -24,7 +24,8 @@
/* Symbols defined by linker scripts */
extern char input_data[];
extern int input_len;
extern __le32 output_len; /* at unaligned address, little-endian */
/* output_len is inserted by the linker possibly at an unaligned address */
extern __le32 output_len __aligned(1);
extern char _text, _end;
extern char _bss, _ebss;
extern char _startcode_end;

View File

@ -280,6 +280,7 @@ void setup_pdc(void); /* in inventory.c */
/* wrapper-functions from pdc.c */
int pdc_add_valid(unsigned long address);
int pdc_instr(unsigned int *instr);
int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
int pdc_chassis_disp(unsigned long disp);
int pdc_chassis_warn(unsigned long *warn);

View File

@ -1,6 +1,7 @@
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
extern int init_per_cpu(int cpuid);
#if defined(CONFIG_SMP)

View File

@ -232,6 +232,26 @@ int pdc_add_valid(unsigned long address)
}
EXPORT_SYMBOL(pdc_add_valid);
/**
* pdc_instr - Get instruction that invokes PDCE_CHECK in HPMC handler.
* @instr: Pointer to variable which will get instruction opcode.
*
* The return value is PDC_OK (0) in case call succeeded.
*/
int __init pdc_instr(unsigned int *instr)
{
int retval;
unsigned long flags;
spin_lock_irqsave(&pdc_lock, flags);
retval = mem_pdc_call(PDC_INSTR, 0UL, __pa(pdc_result));
convert_to_wide(pdc_result);
*instr = pdc_result[0];
spin_unlock_irqrestore(&pdc_lock, flags);
return retval;
}
/**
* pdc_chassis_info - Return chassis information.
* @result: The return buffer.

View File

@ -15,6 +15,7 @@
#include <linux/memblock.h>
#include <linux/seq_file.h>
#include <linux/kthread.h>
#include <linux/initrd.h>
#include <asm/pdc.h>
#include <asm/pdcpat.h>
@ -216,8 +217,16 @@ void __init pdc_pdt_init(void)
}
for (i = 0; i < pdt_status.pdt_entries; i++) {
unsigned long addr;
report_mem_err(pdt_entry[i]);
addr = pdt_entry[i] & PDT_ADDR_PHYS_MASK;
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
addr >= initrd_start && addr < initrd_end)
pr_crit("CRITICAL: initrd possibly broken "
"due to bad memory!\n");
/* mark memory page bad */
memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
}

View File

@ -317,7 +317,7 @@ void __init collect_boot_cpu_data(void)
*
* o Enable CPU profiling hooks.
*/
int init_per_cpu(int cpunum)
int __init init_per_cpu(int cpunum)
{
int ret;
struct pdc_coproc_cfg coproc_cfg;

View File

@ -38,6 +38,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
#include <linux/start_kernel.h>
#include <asm/processor.h>
#include <asm/sections.h>
@ -48,6 +49,7 @@
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/unwind.h>
#include <asm/smp.h>
static char __initdata command_line[COMMAND_LINE_SIZE];
@ -115,7 +117,6 @@ void __init dma_ops_init(void)
}
#endif
extern int init_per_cpu(int cpuid);
extern void collect_boot_cpu_data(void);
void __init setup_arch(char **cmdline_p)
@ -398,9 +399,8 @@ static int __init parisc_init(void)
}
arch_initcall(parisc_init);
void start_parisc(void)
void __init start_parisc(void)
{
extern void start_kernel(void);
extern void early_trap_init(void);
int ret, cpunum;

View File

@ -255,12 +255,11 @@ void arch_send_call_function_single_ipi(int cpu)
static void __init
smp_cpu_init(int cpunum)
{
extern int init_per_cpu(int); /* arch/parisc/kernel/processor.c */
extern void init_IRQ(void); /* arch/parisc/kernel/irq.c */
extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
/* Set modes and Enable floating point coprocessor */
(void) init_per_cpu(cpunum);
init_per_cpu(cpunum);
disable_sr_hashing();

View File

@ -817,7 +817,7 @@ void __init initialize_ivt(const void *iva)
u32 check = 0;
u32 *ivap;
u32 *hpmcp;
u32 length;
u32 length, instr;
if (strcmp((const char *)iva, "cows can fly"))
panic("IVT invalid");
@ -827,6 +827,14 @@ void __init initialize_ivt(const void *iva)
for (i = 0; i < 8; i++)
*ivap++ = 0;
/*
* Use PDC_INSTR firmware function to get instruction that invokes
* PDCE_CHECK in HPMC handler. See programming note at page 1-31 of
* the PA 1.1 Firmware Architecture document.
*/
if (pdc_instr(&instr) == PDC_OK)
ivap[0] = instr;
/* Compute Checksum for HPMC handler */
length = os_hpmc_size;
ivap[7] = length;

View File

@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/kallsyms.h>
#include <linux/sort.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
#include <asm/assembly.h>
@ -279,6 +280,17 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
info->prev_sp = sp - 64;
info->prev_ip = 0;
/* The stack is at the end inside the thread_union
* struct. If we reach data, we have reached the
* beginning of the stack and should stop unwinding. */
if (info->prev_sp >= (unsigned long) task_thread_info(info->t) &&
info->prev_sp < ((unsigned long) task_thread_info(info->t)
+ THREAD_SZ_ALGN)) {
info->prev_sp = 0;
break;
}
if (get_user(tmp, (unsigned long *)(info->prev_sp - RP_OFFSET)))
break;
info->prev_ip = tmp;

View File

@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
#include <linux/hugetlb.h>
#include <asm/traps.h>
@ -261,7 +262,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
struct task_struct *tsk;
struct mm_struct *mm;
unsigned long acc_type;
int fault;
int fault = 0;
unsigned int flags;
if (faulthandler_disabled())
@ -315,7 +316,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
else if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
VM_FAULT_HWPOISON_LARGE))
goto bad_area;
BUG();
}
@ -352,8 +354,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
if (user_mode(regs)) {
struct siginfo si;
show_signal_msg(regs, code, address, tsk, vma);
unsigned int lsb = 0;
switch (code) {
case 15: /* Data TLB miss fault/Data page fault */
@ -386,6 +387,30 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
break;
}
#ifdef CONFIG_MEMORY_FAILURE
if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
printk(KERN_ERR
"MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",
tsk->comm, tsk->pid, address);
si.si_signo = SIGBUS;
si.si_code = BUS_MCEERR_AR;
}
#endif
/*
* Either small page or large page may be poisoned.
* In other words, VM_FAULT_HWPOISON_LARGE and
* VM_FAULT_HWPOISON are mutually exclusive.
*/
if (fault & VM_FAULT_HWPOISON_LARGE)
lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
else if (fault & VM_FAULT_HWPOISON)
lsb = PAGE_SHIFT;
else
show_signal_msg(regs, code, address, tsk, vma);
si.si_addr_lsb = lsb;
si.si_errno = 0;
si.si_addr = (void __user *) address;
force_sig_info(si.si_signo, &si, current);

View File

@ -138,10 +138,11 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m
CONFIG_SND_AOA_FABRIC_LAYOUT=m

View File

@ -64,11 +64,12 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_GENERIC=y

View File

@ -115,9 +115,10 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_USB_AUDIO=y
CONFIG_SND_USB_USX2Y=y

View File

@ -227,11 +227,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_DUMMY=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m

View File

@ -222,11 +222,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m
CONFIG_SND_AOA_FABRIC_LAYOUT=m

View File

@ -141,11 +141,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_HID_DRAGONRISE=y
CONFIG_HID_GYRATION=y
CONFIG_HID_TWINHAN=y

View File

@ -789,17 +789,18 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
CONFIG_SND_DEBUG_VERBOSE=y
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m

View File

@ -79,11 +79,12 @@ CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_HID_APPLE=m
CONFIG_HID_WACOM=m
CONFIG_MMC=y

View File

@ -1019,6 +1019,10 @@ int eeh_init(void)
} else if ((ret = eeh_ops->init()))
return ret;
/* Initialize PHB PEs */
list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
eeh_dev_phb_init_dynamic(hose);
/* Initialize EEH event */
ret = eeh_event_init();
if (ret)

View File

@ -78,21 +78,3 @@ void eeh_dev_phb_init_dynamic(struct pci_controller *phb)
/* EEH PE for PHB */
eeh_phb_pe_create(phb);
}
/**
* eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs
*
* Scan all the existing PHBs and create EEH devices for their OF
* nodes and their children OF nodes
*/
static int __init eeh_dev_phb_init(void)
{
struct pci_controller *phb, *tmp;
list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
eeh_dev_phb_init_dynamic(phb);
return 0;
}
core_initcall(eeh_dev_phb_init);

View File

@ -104,8 +104,10 @@ static unsigned long can_optimize(struct kprobe *p)
* and that can be emulated.
*/
if (!is_conditional_branch(*p->ainsn.insn) &&
analyse_instr(&op, &regs, *p->ainsn.insn))
analyse_instr(&op, &regs, *p->ainsn.insn) == 1) {
emulate_update_regs(&regs, &op);
nip = regs.nip;
}
return nip;
}

View File

@ -131,7 +131,7 @@ static void flush_tmregs_to_thread(struct task_struct *tsk)
* in the appropriate thread structures from live.
*/
if (tsk != current)
if ((!cpu_has_feature(CPU_FTR_TM)) || (tsk != current))
return;
if (MSR_TM_SUSPENDED(mfmsr())) {

View File

@ -437,6 +437,7 @@ static inline int check_io_access(struct pt_regs *regs)
int machine_check_e500mc(struct pt_regs *regs)
{
unsigned long mcsr = mfspr(SPRN_MCSR);
unsigned long pvr = mfspr(SPRN_PVR);
unsigned long reason = mcsr;
int recoverable = 1;
@ -478,8 +479,15 @@ int machine_check_e500mc(struct pt_regs *regs)
* may still get logged and cause a machine check. We should
* only treat the non-write shadow case as non-recoverable.
*/
if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
recoverable = 0;
/* On e6500 core, L1 DCWS (Data cache write shadow mode) bit
* is not implemented but L1 data cache always runs in write
* shadow mode. Hence on data cache parity errors HW will
* automatically invalidate the L1 Data Cache.
*/
if (PVR_VER(pvr) != PVR_VER_E6500) {
if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
recoverable = 0;
}
}
if (reason & MCSR_L2MMU_MHIT) {

View File

@ -944,9 +944,9 @@ NOKPROBE_SYMBOL(emulate_dcbz);
: "r" (addr), "i" (-EFAULT), "0" (err))
static nokprobe_inline void set_cr0(const struct pt_regs *regs,
struct instruction_op *op, int rd)
struct instruction_op *op)
{
long val = regs->gpr[rd];
long val = op->val;
op->type |= SETCC;
op->ccval = (regs->ccr & 0x0fffffff) | ((regs->xer >> 3) & 0x10000000);
@ -1326,7 +1326,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
case 13: /* addic. */
imm = (short) instr;
add_with_carry(regs, op, rd, regs->gpr[ra], imm, 0);
set_cr0(regs, op, rd);
set_cr0(regs, op);
return 1;
case 14: /* addi */
@ -1397,13 +1397,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
case 28: /* andi. */
op->val = regs->gpr[rd] & (unsigned short) instr;
set_cr0(regs, op, ra);
set_cr0(regs, op);
goto logical_done_nocc;
case 29: /* andis. */
imm = (unsigned short) instr;
op->val = regs->gpr[rd] & (imm << 16);
set_cr0(regs, op, ra);
set_cr0(regs, op);
goto logical_done_nocc;
#ifdef __powerpc64__
@ -1513,10 +1513,10 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
op->type = COMPUTE + SETCC;
imm = 0xf0000000UL;
val = regs->gpr[rd];
op->val = regs->ccr;
op->ccval = regs->ccr;
for (sh = 0; sh < 8; ++sh) {
if (instr & (0x80000 >> sh))
op->val = (op->val & ~imm) |
op->ccval = (op->ccval & ~imm) |
(val & imm);
imm >>= 4;
}
@ -1651,8 +1651,9 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
goto arith_done;
case 235: /* mullw */
op->val = (unsigned int) regs->gpr[ra] *
(unsigned int) regs->gpr[rb];
op->val = (long)(int) regs->gpr[ra] *
(int) regs->gpr[rb];
goto arith_done;
case 266: /* add */
@ -2526,7 +2527,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
logical_done:
if (instr & 1)
set_cr0(regs, op, ra);
set_cr0(regs, op);
logical_done_nocc:
op->reg = ra;
op->type |= SETREG;
@ -2534,7 +2535,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
arith_done:
if (instr & 1)
set_cr0(regs, op, rd);
set_cr0(regs, op);
compute_done:
op->reg = rd;
op->type |= SETREG;

View File

@ -793,6 +793,11 @@ void perf_event_print_debug(void)
u32 pmcs[MAX_HWEVENTS];
int i;
if (!ppmu) {
pr_info("Performance monitor hardware not registered.\n");
return;
}
if (!ppmu->n_counter)
return;

View File

@ -393,7 +393,13 @@ static void pnv_program_cpu_hotplug_lpcr(unsigned int cpu, u64 lpcr_val)
u64 pir = get_hard_smp_processor_id(cpu);
mtspr(SPRN_LPCR, lpcr_val);
opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val);
/*
* Program the LPCR via stop-api only if the deepest stop state
* can lose hypervisor context.
*/
if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val);
}
/*

View File

@ -266,7 +266,6 @@ int dlpar_attach_node(struct device_node *dn, struct device_node *parent)
return rc;
}
of_node_put(dn->parent);
return 0;
}

View File

@ -462,15 +462,19 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
}
dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);
of_node_put(parent);
if (!dn) {
pr_warn("Failed call to configure-connector, drc index: %x\n",
drc_index);
dlpar_release_drc(drc_index);
of_node_put(parent);
return -EINVAL;
}
rc = dlpar_attach_node(dn, parent);
/* Regardless we are done with parent now */
of_node_put(parent);
if (rc) {
saved_rc = rc;
pr_warn("Failed to attach node %s, rc: %d, drc index: %x\n",

View File

@ -226,8 +226,10 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
return -ENOENT;
dn = dlpar_configure_connector(drc_index, parent_dn);
if (!dn)
if (!dn) {
of_node_put(parent_dn);
return -ENOENT;
}
rc = dlpar_attach_node(dn, parent_dn);
if (rc)

View File

@ -1507,7 +1507,9 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
static inline void pmdp_invalidate(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp)
{
pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));
pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);
pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd);
}
#define __HAVE_ARCH_PMDP_SET_WRPROTECT

View File

@ -404,18 +404,6 @@ static inline void save_vector_registers(void)
#endif
}
static int __init topology_setup(char *str)
{
bool enabled;
int rc;
rc = kstrtobool(str, &enabled);
if (!rc && !enabled)
S390_lowcore.machine_flags &= ~MACHINE_FLAG_TOPOLOGY;
return rc;
}
early_param("topology", topology_setup);
static int __init disable_vector_extension(char *str)
{
S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;

View File

@ -823,9 +823,12 @@ static int cpumsf_pmu_event_init(struct perf_event *event)
}
/* Check online status of the CPU to which the event is pinned */
if ((unsigned int)event->cpu >= nr_cpumask_bits ||
(event->cpu >= 0 && !cpu_online(event->cpu)))
return -ENODEV;
if (event->cpu >= 0) {
if ((unsigned int)event->cpu >= nr_cpumask_bits)
return -ENODEV;
if (!cpu_online(event->cpu))
return -ENODEV;
}
/* Force reset of idle/hv excludes regardless of what the
* user requested.

View File

@ -8,6 +8,8 @@
#include <linux/workqueue.h>
#include <linux/bootmem.h>
#include <linux/uaccess.h>
#include <linux/sysctl.h>
#include <linux/cpuset.h>
#include <linux/device.h>
#include <linux/export.h>
@ -29,12 +31,20 @@
#define PTF_VERTICAL (1UL)
#define PTF_CHECK (2UL)
enum {
TOPOLOGY_MODE_HW,
TOPOLOGY_MODE_SINGLE,
TOPOLOGY_MODE_PACKAGE,
TOPOLOGY_MODE_UNINITIALIZED
};
struct mask_info {
struct mask_info *next;
unsigned char id;
cpumask_t mask;
};
static int topology_mode = TOPOLOGY_MODE_UNINITIALIZED;
static void set_topology_timer(void);
static void topology_work_fn(struct work_struct *work);
static struct sysinfo_15_1_x *tl_info;
@ -59,11 +69,26 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
cpumask_t mask;
cpumask_copy(&mask, cpumask_of(cpu));
if (!MACHINE_HAS_TOPOLOGY)
return mask;
for (; info; info = info->next) {
if (cpumask_test_cpu(cpu, &info->mask))
return info->mask;
switch (topology_mode) {
case TOPOLOGY_MODE_HW:
while (info) {
if (cpumask_test_cpu(cpu, &info->mask)) {
mask = info->mask;
break;
}
info = info->next;
}
if (cpumask_empty(&mask))
cpumask_copy(&mask, cpumask_of(cpu));
break;
case TOPOLOGY_MODE_PACKAGE:
cpumask_copy(&mask, cpu_present_mask);
break;
default:
/* fallthrough */
case TOPOLOGY_MODE_SINGLE:
cpumask_copy(&mask, cpumask_of(cpu));
break;
}
return mask;
}
@ -74,7 +99,7 @@ static cpumask_t cpu_thread_map(unsigned int cpu)
int i;
cpumask_copy(&mask, cpumask_of(cpu));
if (!MACHINE_HAS_TOPOLOGY)
if (topology_mode != TOPOLOGY_MODE_HW)
return mask;
cpu -= cpu % (smp_cpu_mtid + 1);
for (i = 0; i <= smp_cpu_mtid; i++)
@ -184,10 +209,8 @@ static void topology_update_polarization_simple(void)
{
int cpu;
mutex_lock(&smp_cpu_state_mutex);
for_each_possible_cpu(cpu)
smp_cpu_set_polarization(cpu, POLARIZATION_HRZ);
mutex_unlock(&smp_cpu_state_mutex);
}
static int ptf(unsigned long fc)
@ -223,7 +246,7 @@ int topology_set_cpu_management(int fc)
static void update_cpu_masks(void)
{
struct cpu_topology_s390 *topo;
int cpu;
int cpu, id;
for_each_possible_cpu(cpu) {
topo = &cpu_topology[cpu];
@ -231,12 +254,13 @@ static void update_cpu_masks(void)
topo->core_mask = cpu_group_map(&socket_info, cpu);
topo->book_mask = cpu_group_map(&book_info, cpu);
topo->drawer_mask = cpu_group_map(&drawer_info, cpu);
if (!MACHINE_HAS_TOPOLOGY) {
if (topology_mode != TOPOLOGY_MODE_HW) {
id = topology_mode == TOPOLOGY_MODE_PACKAGE ? 0 : cpu;
topo->thread_id = cpu;
topo->core_id = cpu;
topo->socket_id = cpu;
topo->book_id = cpu;
topo->drawer_id = cpu;
topo->socket_id = id;
topo->book_id = id;
topo->drawer_id = id;
if (cpu_present(cpu))
cpumask_set_cpu(cpu, &cpus_with_topology);
}
@ -254,6 +278,7 @@ static int __arch_update_cpu_topology(void)
struct sysinfo_15_1_x *info = tl_info;
int rc = 0;
mutex_lock(&smp_cpu_state_mutex);
cpumask_clear(&cpus_with_topology);
if (MACHINE_HAS_TOPOLOGY) {
rc = 1;
@ -263,6 +288,7 @@ static int __arch_update_cpu_topology(void)
update_cpu_masks();
if (!MACHINE_HAS_TOPOLOGY)
topology_update_polarization_simple();
mutex_unlock(&smp_cpu_state_mutex);
return rc;
}
@ -289,6 +315,11 @@ void topology_schedule_update(void)
schedule_work(&topology_work);
}
static void topology_flush_work(void)
{
flush_work(&topology_work);
}
static void topology_timer_fn(unsigned long ignored)
{
if (ptf(PTF_CHECK))
@ -459,6 +490,12 @@ void __init topology_init_early(void)
struct sysinfo_15_1_x *info;
set_sched_topology(s390_topology);
if (topology_mode == TOPOLOGY_MODE_UNINITIALIZED) {
if (MACHINE_HAS_TOPOLOGY)
topology_mode = TOPOLOGY_MODE_HW;
else
topology_mode = TOPOLOGY_MODE_SINGLE;
}
if (!MACHINE_HAS_TOPOLOGY)
goto out;
tl_info = memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE);
@ -474,12 +511,97 @@ void __init topology_init_early(void)
__arch_update_cpu_topology();
}
static inline int topology_get_mode(int enabled)
{
if (!enabled)
return TOPOLOGY_MODE_SINGLE;
return MACHINE_HAS_TOPOLOGY ? TOPOLOGY_MODE_HW : TOPOLOGY_MODE_PACKAGE;
}
static inline int topology_is_enabled(void)
{
return topology_mode != TOPOLOGY_MODE_SINGLE;
}
static int __init topology_setup(char *str)
{
bool enabled;
int rc;
rc = kstrtobool(str, &enabled);
if (rc)
return rc;
topology_mode = topology_get_mode(enabled);
return 0;
}
early_param("topology", topology_setup);
static int topology_ctl_handler(struct ctl_table *ctl, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
unsigned int len;
int new_mode;
char buf[2];
if (!*lenp || *ppos) {
*lenp = 0;
return 0;
}
if (!write) {
strncpy(buf, topology_is_enabled() ? "1\n" : "0\n",
ARRAY_SIZE(buf));
len = strnlen(buf, ARRAY_SIZE(buf));
if (len > *lenp)
len = *lenp;
if (copy_to_user(buffer, buf, len))
return -EFAULT;
goto out;
}
len = *lenp;
if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
return -EFAULT;
if (buf[0] != '0' && buf[0] != '1')
return -EINVAL;
mutex_lock(&smp_cpu_state_mutex);
new_mode = topology_get_mode(buf[0] == '1');
if (topology_mode != new_mode) {
topology_mode = new_mode;
topology_schedule_update();
}
mutex_unlock(&smp_cpu_state_mutex);
topology_flush_work();
out:
*lenp = len;
*ppos += len;
return 0;
}
static struct ctl_table topology_ctl_table[] = {
{
.procname = "topology",
.mode = 0644,
.proc_handler = topology_ctl_handler,
},
{ },
};
static struct ctl_table topology_dir_table[] = {
{
.procname = "s390",
.maxlen = 0,
.mode = 0555,
.child = topology_ctl_table,
},
{ },
};
static int __init topology_init(void)
{
if (MACHINE_HAS_TOPOLOGY)
set_topology_timer();
else
topology_update_polarization_simple();
register_sysctl_table(topology_dir_table);
return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
}
device_initcall(topology_init);

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