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perf/urgent fixes:

Browse Source 
Core libraries:
 
   Jiri Olsa:
 
   - Fix max perf_event_attr.precise_ip detection.
 
   Kan Liang:
 
   - Fix parser error for uncore event alias
 
   Wei Lin:
 
   - Fixup ordering of kernel maps after obtaining the main kernel map address.
 
 Intel PT:
 
   Adrian Hunter:
 
   - Fix TSC slip where A TSC packet can slip past MTC packets so that the
     timestamp appears to go backwards.
 
   - Fixes for exported-sql-viewer GUI conversion to python3.
 
 ARM coresight:
 
   Solomon Tan:
 
   - Fix the build by adding a missing case value for enumeration value introduced
     in newer library, that now is the required one.
 
 tool headers:
 
   Arnaldo Carvalho de Melo:
 
   - Syncronize kernel headers with the kernel, getting new io_uring and
     pidfd_send_signal syscalls so that 'perf trace' can handle them.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo-5.1-20190329' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo:

Core libraries:
  Jiri Olsa:
  - Fix max perf_event_attr.precise_ip detection.

  Kan Liang:
  - Fix parser error for uncore event alias

  Wei Lin:
  - Fixup ordering of kernel maps after obtaining the main kernel map address.

Intel PT:
  Adrian Hunter:
  - Fix TSC slip where A TSC packet can slip past MTC packets so that the
    timestamp appears to go backwards.

  - Fixes for exported-sql-viewer GUI conversion to python3.

ARM coresight:
  Solomon Tan:
  - Fix the build by adding a missing case value for enumeration value introduced
    in newer library, that now is the required one.

tool headers:
  Arnaldo Carvalho de Melo:
  - Syncronize kernel headers with the kernel, getting new io_uring and
    pidfd_send_signal syscalls so that 'perf trace' can handle them.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Thomas Gleixner 2019-03-29 21:28:58 +01:00
commit 22261fdf68
57 changed files with 719 additions and 392 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

365
Documentation/filesystems/mount_api.txt
View File

@ -12,11 +12,13 @@ CONTENTS
(4) Filesystem context security.
(5) VFS filesystem context operations.
(5) VFS filesystem context API.
(6) Parameter description.
(6) Superblock creation helpers.
(7) Parameter helper functions.
(7) Parameter description.
(8) Parameter helper functions.
========
@ -41,12 +43,15 @@ The creation of new mounts is now to be done in a multistep process:
(7) Destroy the context.
To support this, the file_system_type struct gains a new field:
To support this, the file_system_type struct gains two new fields:
int (*init_fs_context)(struct fs_context *fc);
const struct fs_parameter_description *parameters;
which is invoked to set up the filesystem-specific parts of a filesystem
context, including the additional space.
The first is invoked to set up the filesystem-specific parts of a filesystem
context, including the additional space, and the second points to the
parameter description for validation at registration time and querying by a
future system call.
Note that security initialisation is done *after* the filesystem is called so
that the namespaces may be adjusted first.
@ -73,9 +78,9 @@ context. This is represented by the fs_context structure:
void *s_fs_info;
unsigned int sb_flags;
unsigned int sb_flags_mask;
unsigned int s_iflags;
unsigned int lsm_flags;
enum fs_context_purpose purpose:8;
bool sloppy:1;
bool silent:1;
...
};
@ -141,6 +146,10 @@ The fs_context fields are as follows:
Which bits SB_* flags are to be set/cleared in super_block::s_flags.
(*) unsigned int s_iflags
These will be bitwise-OR'd with s->s_iflags when a superblock is created.
(*) enum fs_context_purpose
This indicates the purpose for which the context is intended. The
@ -150,17 +159,6 @@ The fs_context fields are as follows:
FS_CONTEXT_FOR_SUBMOUNT -- New automatic submount of extant mount
FS_CONTEXT_FOR_RECONFIGURE -- Change an existing mount
(*) bool sloppy
(*) bool silent
These are set if the sloppy or silent mount options are given.
[NOTE] sloppy is probably unnecessary when userspace passes over one
option at a time since the error can just be ignored if userspace deems it
to be unimportant.
[NOTE] silent is probably redundant with sb_flags & SB_SILENT.
The mount context is created by calling vfs_new_fs_context() or
vfs_dup_fs_context() and is destroyed with put_fs_context(). Note that the
structure is not refcounted.
@ -342,28 +340,47 @@ number of operations used by the new mount code for this purpose:
It should return 0 on success or a negative error code on failure.
=================================
VFS FILESYSTEM CONTEXT OPERATIONS
=================================
==========================
VFS FILESYSTEM CONTEXT API
==========================
There are four operations for creating a filesystem context and
one for destroying a context:
There are four operations for creating a filesystem context and one for
destroying a context:
(*) struct fs_context *vfs_new_fs_context(struct file_system_type *fs_type,
struct dentry *reference,
unsigned int sb_flags,
unsigned int sb_flags_mask,
enum fs_context_purpose purpose);
(*) struct fs_context *fs_context_for_mount(
struct file_system_type *fs_type,
unsigned int sb_flags);
Create a filesystem context for a given filesystem type and purpose. This
allocates the filesystem context, sets the superblock flags, initialises
the security and calls fs_type->init_fs_context() to initialise the
filesystem private data.
Allocate a filesystem context for the purpose of setting up a new mount,
whether that be with a new superblock or sharing an existing one. This
sets the superblock flags, initialises the security and calls
fs_type->init_fs_context() to initialise the filesystem private data.
reference can be NULL or it may indicate the root dentry of a superblock
that is going to be reconfigured (FS_CONTEXT_FOR_RECONFIGURE) or
the automount point that triggered a submount (FS_CONTEXT_FOR_SUBMOUNT).
This is provided as a source of namespace information.
fs_type specifies the filesystem type that will manage the context and
sb_flags presets the superblock flags stored therein.
(*) struct fs_context *fs_context_for_reconfigure(
struct dentry *dentry,
unsigned int sb_flags,
unsigned int sb_flags_mask);
Allocate a filesystem context for the purpose of reconfiguring an
existing superblock. dentry provides a reference to the superblock to be
configured. sb_flags and sb_flags_mask indicate which superblock flags
need changing and to what.
(*) struct fs_context *fs_context_for_submount(
struct file_system_type *fs_type,
struct dentry *reference);
Allocate a filesystem context for the purpose of creating a new mount for
an automount point or other derived superblock. fs_type specifies the
filesystem type that will manage the context and the reference dentry
supplies the parameters. Namespaces are propagated from the reference
dentry's superblock also.
Note that it's not a requirement that the reference dentry be of the same
filesystem type as fs_type.
(*) struct fs_context *vfs_dup_fs_context(struct fs_context *src_fc);
@ -390,20 +407,6 @@ context pointer or a negative error code.
For the remaining operations, if an error occurs, a negative error code will be
returned.
(*) int vfs_get_tree(struct fs_context *fc);
Get or create the mountable root and superblock, using the parameters in
the filesystem context to select/configure the superblock. This invokes
the ->validate() op and then the ->get_tree() op.
[NOTE] ->validate() could perhaps be rolled into ->get_tree() and
->reconfigure().
(*) struct vfsmount *vfs_create_mount(struct fs_context *fc);
Create a mount given the parameters in the specified filesystem context.
Note that this does not attach the mount to anything.
(*) int vfs_parse_fs_param(struct fs_context *fc,
struct fs_parameter *param);
@ -432,17 +435,80 @@ returned.
clear the pointer, but then becomes responsible for disposing of the
object.
(*) int vfs_parse_fs_string(struct fs_context *fc, char *key,
(*) int vfs_parse_fs_string(struct fs_context *fc, const char *key,
const char *value, size_t v_size);
A wrapper around vfs_parse_fs_param() that just passes a constant string.
A wrapper around vfs_parse_fs_param() that copies the value string it is
passed.
(*) int generic_parse_monolithic(struct fs_context *fc, void *data);
Parse a sys_mount() data page, assuming the form to be a text list
consisting of key[=val] options separated by commas. Each item in the
list is passed to vfs_mount_option(). This is the default when the
->parse_monolithic() operation is NULL.
->parse_monolithic() method is NULL.
(*) int vfs_get_tree(struct fs_context *fc);
Get or create the mountable root and superblock, using the parameters in
the filesystem context to select/configure the superblock. This invokes
the ->get_tree() method.
(*) struct vfsmount *vfs_create_mount(struct fs_context *fc);
Create a mount given the parameters in the specified filesystem context.
Note that this does not attach the mount to anything.
===========================
SUPERBLOCK CREATION HELPERS
===========================
A number of VFS helpers are available for use by filesystems for the creation
or looking up of superblocks.
(*) struct super_block *
sget_fc(struct fs_context *fc,
int (*test)(struct super_block *sb, struct fs_context *fc),
int (*set)(struct super_block *sb, struct fs_context *fc));
This is the core routine. If test is non-NULL, it searches for an
existing superblock matching the criteria held in the fs_context, using
the test function to match them. If no match is found, a new superblock
is created and the set function is called to set it up.
Prior to the set function being called, fc->s_fs_info will be transferred
to sb->s_fs_info - and fc->s_fs_info will be cleared if set returns
success (ie. 0).
The following helpers all wrap sget_fc():
(*) int vfs_get_super(struct fs_context *fc,
enum vfs_get_super_keying keying,
int (*fill_super)(struct super_block *sb,
struct fs_context *fc))
This creates/looks up a deviceless superblock. The keying indicates how
many superblocks of this type may exist and in what manner they may be
shared:
(1) vfs_get_single_super
Only one such superblock may exist in the system. Any further
attempt to get a new superblock gets this one (and any parameter
differences are ignored).
(2) vfs_get_keyed_super
Multiple superblocks of this type may exist and they're keyed on
their s_fs_info pointer (for example this may refer to a
namespace).
(3) vfs_get_independent_super
Multiple independent superblocks of this type may exist. This
function never matches an existing one and always creates a new
one.
=====================
@ -454,35 +520,22 @@ There's a core description struct that links everything together:
struct fs_parameter_description {
const char name[16];
u8 nr_params;
u8 nr_alt_keys;
u8 nr_enums;
bool ignore_unknown;
bool no_source;
const char *const *keys;
const struct constant_table *alt_keys;
const struct fs_parameter_spec *specs;
const struct fs_parameter_enum *enums;
};
For example:
enum afs_param {
enum {
Opt_autocell,
Opt_bar,
Opt_dyn,
Opt_foo,
Opt_source,
nr__afs_params
};
static const struct fs_parameter_description afs_fs_parameters = {
.name = "kAFS",
.nr_params = nr__afs_params,
.nr_alt_keys = ARRAY_SIZE(afs_param_alt_keys),
.nr_enums = ARRAY_SIZE(afs_param_enums),
.keys = afs_param_keys,
.alt_keys = afs_param_alt_keys,
.specs = afs_param_specs,
.enums = afs_param_enums,
};
@ -494,28 +547,24 @@ The members are as follows:
The name to be used in error messages generated by the parse helper
functions.
(2) u8 nr_params;
(2) const struct fs_parameter_specification *specs;
The number of discrete parameter identifiers. This indicates the number
of elements in the ->types[] array and also limits the values that may be
used in the values that the ->keys[] array maps to.
Table of parameter specifications, terminated with a null entry, where the
entries are of type:
It is expected that, for example, two parameters that are related, say
"acl" and "noacl" with have the same ID, but will be flagged to indicate
that one is the inverse of the other. The value can then be picked out
from the parse result.
(3) const struct fs_parameter_specification *specs;
Table of parameter specifications, where the entries are of type:
struct fs_parameter_type {
enum fs_parameter_spec type:8;
u8 flags;
struct fs_parameter_spec {
const char *name;
u8 opt;
enum fs_parameter_type type:8;
unsigned short flags;
};
and the parameter identifier is the index to the array. 'type' indicates
the desired value type and must be one of:
The 'name' field is a string to match exactly to the parameter key (no
wildcards, patterns and no case-independence) and 'opt' is the value that
will be returned by the fs_parser() function in the case of a successful
match.
The 'type' field indicates the desired value type and must be one of:
TYPE NAME EXPECTED VALUE RESULT IN
======================= ======================= =====================
@ -525,85 +574,65 @@ The members are as follows:
fs_param_is_u32_octal 32-bit octal int result->uint_32
fs_param_is_u32_hex 32-bit hex int result->uint_32
fs_param_is_s32 32-bit signed int result->int_32
fs_param_is_u64 64-bit unsigned int result->uint_64
fs_param_is_enum Enum value name result->uint_32
fs_param_is_string Arbitrary string param->string
fs_param_is_blob Binary blob param->blob
fs_param_is_blockdev Blockdev path * Needs lookup
fs_param_is_path Path * Needs lookup
fs_param_is_fd File descriptor param->file
And each parameter can be qualified with 'flags':
fs_param_v_optional The value is optional
fs_param_neg_with_no If key name is prefixed with "no", it is false
fs_param_neg_with_empty If value is "", it is false
fs_param_deprecated The parameter is deprecated.
For example:
static const struct fs_parameter_spec afs_param_specs[nr__afs_params] = {
[Opt_autocell] = { fs_param_is flag },
[Opt_bar] = { fs_param_is_enum },
[Opt_dyn] = { fs_param_is flag },
[Opt_foo] = { fs_param_is_bool, fs_param_neg_with_no },
[Opt_source] = { fs_param_is_string },
};
fs_param_is_fd File descriptor result->int_32
Note that if the value is of fs_param_is_bool type, fs_parse() will try
to match any string value against "0", "1", "no", "yes", "false", "true".
[!] NOTE that the table must be sorted according to primary key name so
that ->keys[] is also sorted.
Each parameter can also be qualified with 'flags':
(4) const char *const *keys;
fs_param_v_optional The value is optional
fs_param_neg_with_no result->negated set if key is prefixed with "no"
fs_param_neg_with_empty result->negated set if value is ""
fs_param_deprecated The parameter is deprecated.
Table of primary key names for the parameters. There must be one entry
per defined parameter. The table is optional if ->nr_params is 0. The
table is just an array of names e.g.:
These are wrapped with a number of convenience wrappers:
static const char *const afs_param_keys[nr__afs_params] = {
[Opt_autocell] = "autocell",
[Opt_bar] = "bar",
[Opt_dyn] = "dyn",
[Opt_foo] = "foo",
[Opt_source] = "source",
MACRO SPECIFIES
======================= ===============================================
fsparam_flag() fs_param_is_flag
fsparam_flag_no() fs_param_is_flag, fs_param_neg_with_no
fsparam_bool() fs_param_is_bool
fsparam_u32() fs_param_is_u32
fsparam_u32oct() fs_param_is_u32_octal
fsparam_u32hex() fs_param_is_u32_hex
fsparam_s32() fs_param_is_s32
fsparam_u64() fs_param_is_u64
fsparam_enum() fs_param_is_enum
fsparam_string() fs_param_is_string
fsparam_blob() fs_param_is_blob
fsparam_bdev() fs_param_is_blockdev
fsparam_path() fs_param_is_path
fsparam_fd() fs_param_is_fd
all of which take two arguments, name string and option number - for
example:
static const struct fs_parameter_spec afs_param_specs[] = {
fsparam_flag ("autocell", Opt_autocell),
fsparam_flag ("dyn", Opt_dyn),
fsparam_string ("source", Opt_source),
fsparam_flag_no ("foo", Opt_foo),
{}
};
[!] NOTE that the table must be sorted such that the table can be searched
with bsearch() using strcmp(). This means that the Opt_* values must
correspond to the entries in this table.
(5) const struct constant_table *alt_keys;
u8 nr_alt_keys;
Table of additional key names and their mappings to parameter ID plus the
number of elements in the table. This is optional. The table is just an
array of { name, integer } pairs, e.g.:
static const struct constant_table afs_param_keys[] = {
{ "baz", Opt_bar },
{ "dynamic", Opt_dyn },
};
[!] NOTE that the table must be sorted such that strcmp() can be used with
bsearch() to search the entries.
The parameter ID can also be fs_param_key_removed to indicate that a
deprecated parameter has been removed and that an error will be given.
This differs from fs_param_deprecated where the parameter may still have
an effect.
Further, the behaviour of the parameter may differ when an alternate name
is used (for instance with NFS, "v3", "v4.2", etc. are alternate names).
An addition macro, __fsparam() is provided that takes an additional pair
of arguments to specify the type and the flags for anything that doesn't
match one of the above macros.
(6) const struct fs_parameter_enum *enums;
u8 nr_enums;
Table of enum value names to integer mappings and the number of elements
stored therein. This is of type:
Table of enum value names to integer mappings, terminated with a null
entry. This is of type:
struct fs_parameter_enum {
u8 param_id;
u8 opt;
char name[14];
u8 value;
};
@ -621,11 +650,6 @@ The members are as follows:
try to look the value up in the enum table and the result will be stored
in the parse result.
(7) bool no_source;
If this is set, fs_parse() will ignore any "source" parameter and not
pass it to the filesystem.
The parser should be pointed to by the parser pointer in the file_system_type
struct as this will provide validation on registration (if
CONFIG_VALIDATE_FS_PARSER=y) and will allow the description to be queried from
@ -650,9 +674,8 @@ process the parameters it is given.
int value;
};
and it must be sorted such that it can be searched using bsearch() using
strcmp(). If a match is found, the corresponding value is returned. If a
match isn't found, the not_found value is returned instead.
If a match is found, the corresponding value is returned. If a match
isn't found, the not_found value is returned instead.
(*) bool validate_constant_table(const struct constant_table *tbl,
size_t tbl_size,
@ -665,36 +688,36 @@ process the parameters it is given.
should just be set to lie inside the low-to-high range.
If all is good, true is returned. If the table is invalid, errors are
logged to dmesg, the stack is dumped and false is returned.
logged to dmesg and false is returned.
(*) bool fs_validate_description(const struct fs_parameter_description *desc);
This performs some validation checks on a parameter description. It
returns true if the description is good and false if it is not. It will
log errors to dmesg if validation fails.
(*) int fs_parse(struct fs_context *fc,
const struct fs_param_parser *parser,
const struct fs_parameter_description *desc,
struct fs_parameter *param,
struct fs_param_parse_result *result);
struct fs_parse_result *result);
This is the main interpreter of parameters. It uses the parameter
description (parser) to look up the name of the parameter to use and to
convert that to a parameter ID (stored in result->key).
description to look up a parameter by key name and to convert that to an
option number (which it returns).
If successful, and if the parameter type indicates the result is a
boolean, integer or enum type, the value is converted by this function and
the result stored in result->{boolean,int_32,uint_32}.
the result stored in result->{boolean,int_32,uint_32,uint_64}.
If a match isn't initially made, the key is prefixed with "no" and no
value is present then an attempt will be made to look up the key with the
prefix removed. If this matches a parameter for which the type has flag
fs_param_neg_with_no set, then a match will be made and the value will be
set to false/0/NULL.
fs_param_neg_with_no set, then a match will be made and result->negated
will be set to true.
If the parameter is successfully matched and, optionally, parsed
correctly, 1 is returned. If the parameter isn't matched and
parser->ignore_unknown is set, then 0 is returned. Otherwise -EINVAL is
returned.
(*) bool fs_validate_description(const struct fs_parameter_description *desc);
This is validates the parameter description. It returns true if the
description is good and false if it is not.
If the parameter isn't matched, -ENOPARAM will be returned; if the
parameter is matched, but the value is erroneous, -EINVAL will be
returned; otherwise the parameter's option number will be returned.
(*) int fs_lookup_param(struct fs_context *fc,
struct fs_parameter *value,

1
arch/arm/Kconfig
View File

@ -596,6 +596,7 @@ config ARCH_DAVINCI
select HAVE_IDE
select PM_GENERIC_DOMAINS if PM
select PM_GENERIC_DOMAINS_OF if PM && OF
select REGMAP_MMIO
select RESET_CONTROLLER
select SPARSE_IRQ
select USE_OF

2
arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
View File

@ -93,7 +93,7 @@
};
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
&pwm {

6
arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
View File

@ -114,9 +114,9 @@
reg = <2>;
};
switch@0 {
switch@10 {
compatible = "qca,qca8334";
reg = <0>;
reg = <10>;
switch_ports: ports {
#address-cells = <1>;
@ -125,7 +125,7 @@
ethphy0: port@0 {
reg = <0>;
label = "cpu";
phy-mode = "rgmii";
phy-mode = "rgmii-id";
ethernet = <&fec>;
fixed-link {

4
arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi
View File

@ -264,7 +264,7 @@
pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
vmcc-supply = <&reg_sd3_vmmc>;
cd-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
bus-witdh = <4>;
bus-width = <4>;
no-1-8-v;
status = "okay";
};
@ -275,7 +275,7 @@
pinctrl-1 = <&pinctrl_usdhc4_100mhz>;
pinctrl-2 = <&pinctrl_usdhc4_200mhz>;
vmcc-supply = <&reg_sd4_vmmc>;
bus-witdh = <8>;
bus-width = <8>;
no-1-8-v;
non-removable;
status = "okay";

1
arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
View File

@ -91,6 +91,7 @@
pinctrl-0 = <&pinctrl_enet>;
phy-handle = <&ethphy>;
phy-mode = "rgmii";
phy-reset-duration = <10>; /* in msecs */
phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
phy-supply = <&vdd_eth_io_reg>;
status = "disabled";

2
arch/arm/boot/dts/imx6ull-pinfunc-snvs.h
View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
* Copyright (C) 2017 NXP

9
arch/arm/boot/dts/ste-nomadik-nhk15.dts
View File

@ -213,12 +213,13 @@
gpio-sck = <&gpio0 5 GPIO_ACTIVE_HIGH>;
gpio-mosi = <&gpio0 4 GPIO_ACTIVE_HIGH>;
/*
* It's not actually active high, but the frameworks assume
* the polarity of the passed-in GPIO is "normal" (active
* high) then actively drives the line low to select the
* chip.
* This chipselect is active high. Just setting the flags
* to GPIO_ACTIVE_HIGH is not enough for the SPI DT bindings,
* it will be ignored, only the special "spi-cs-high" flag
* really counts.
*/
cs-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
spi-cs-high;
num-chipselects = <1>;
/*

3
arch/arm/configs/imx_v4_v5_defconfig
View File

@ -170,6 +170,9 @@ CONFIG_IMX_SDMA=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_IIO=y
CONFIG_FSL_MX25_ADC=y
CONFIG_PWM=y
CONFIG_PWM_IMX1=y
CONFIG_PWM_IMX27=y
CONFIG_EXT4_FS=y
# CONFIG_DNOTIFY is not set
CONFIG_VFAT_FS=y

2
arch/arm/configs/imx_v6_v7_defconfig
View File

@ -398,7 +398,7 @@ CONFIG_MAG3110=y
CONFIG_MPL3115=y
CONFIG_PWM=y
CONFIG_PWM_FSL_FTM=y
CONFIG_PWM_IMX=y
CONFIG_PWM_IMX27=y
CONFIG_NVMEM_IMX_OCOTP=y
CONFIG_NVMEM_VF610_OCOTP=y
CONFIG_TEE=y

27
arch/arm/mach-imx/cpuidle-imx6q.c
View File

@ -16,30 +16,23 @@
#include "cpuidle.h"
#include "hardware.h"
static atomic_t master = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(master_lock);
static int num_idle_cpus = 0;
static DEFINE_SPINLOCK(cpuidle_lock);
static int imx6q_enter_wait(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
if (atomic_inc_return(&master) == num_online_cpus()) {
/*
* With this lock, we prevent other cpu to exit and enter
* this function again and become the master.
*/
if (!spin_trylock(&master_lock))
goto idle;
spin_lock(&cpuidle_lock);
if (++num_idle_cpus == num_online_cpus())
imx6_set_lpm(WAIT_UNCLOCKED);
cpu_do_idle();
imx6_set_lpm(WAIT_CLOCKED);
spin_unlock(&master_lock);
goto done;
}
spin_unlock(&cpuidle_lock);
idle:
cpu_do_idle();
done:
atomic_dec(&master);
spin_lock(&cpuidle_lock);
if (num_idle_cpus-- == num_online_cpus())
imx6_set_lpm(WAIT_CLOCKED);
spin_unlock(&cpuidle_lock);
return index;
}

1
arch/arm/mach-imx/mach-imx51.c
View File

@ -59,6 +59,7 @@ static void __init imx51_m4if_setup(void)
return;
m4if_base = of_iomap(np, 0);
of_node_put(np);
if (!m4if_base) {
pr_err("Unable to map M4IF registers\n");
return;

1
arch/arm64/Kconfig.platforms
View File

@ -27,6 +27,7 @@ config ARCH_BCM2835
bool "Broadcom BCM2835 family"
select TIMER_OF
select GPIOLIB
select MFD_CORE
select PINCTRL
select PINCTRL_BCM2835
select ARM_AMBA

1
arch/arm64/boot/dts/nvidia/tegra186.dtsi
View File

@ -321,7 +321,6 @@
nvidia,default-trim = <0x9>;
nvidia,dqs-trim = <63>;
mmc-hs400-1_8v;
supports-cqe;
status = "disabled";
};

7
arch/arm64/boot/dts/renesas/r8a774c0.dtsi
View File

@ -2,7 +2,7 @@
/*
* Device Tree Source for the RZ/G2E (R8A774C0) SoC
*
* Copyright (C) 2018 Renesas Electronics Corp.
* Copyright (C) 2018-2019 Renesas Electronics Corp.
*/
#include <dt-bindings/clock/r8a774c0-cpg-mssr.h>
@ -1150,9 +1150,8 @@
<&cpg CPG_CORE R8A774C0_CLK_S3D1C>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac1 0x5b>, <&dmac1 0x5a>,
<&dmac2 0x5b>, <&dmac2 0x5a>;
dma-names = "tx", "rx", "tx", "rx";
dmas = <&dmac0 0x5b>, <&dmac0 0x5a>;
dma-names = "tx", "rx";
power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>;
resets = <&cpg 202>;
status = "disabled";

7
arch/arm64/boot/dts/renesas/r8a77990.dtsi
View File

@ -2,7 +2,7 @@
/*
* Device Tree Source for the R-Car E3 (R8A77990) SoC
*
* Copyright (C) 2018 Renesas Electronics Corp.
* Copyright (C) 2018-2019 Renesas Electronics Corp.
*/
#include <dt-bindings/clock/r8a77990-cpg-mssr.h>
@ -1067,9 +1067,8 @@
<&cpg CPG_CORE R8A77990_CLK_S3D1C>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac1 0x5b>, <&dmac1 0x5a>,
<&dmac2 0x5b>, <&dmac2 0x5a>;
dma-names = "tx", "rx", "tx", "rx";
dmas = <&dmac0 0x5b>, <&dmac0 0x5a>;
dma-names = "tx", "rx";
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 202>;
status = "disabled";

11
arch/s390/include/asm/ap.h
View File

@ -360,4 +360,15 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
return reg1;
}
/*
* Interface to tell the AP bus code that a configuration
* change has happened. The bus code should at least do
* an ap bus resource rescan.
*/
#if IS_ENABLED(CONFIG_ZCRYPT)
void ap_bus_cfg_chg(void);
#else
static inline void ap_bus_cfg_chg(void){};
#endif
#endif /* _ASM_S390_AP_H_ */

11
arch/s390/include/asm/elf.h
View File

@ -252,11 +252,14 @@ do { \
/*
* Cache aliasing on the latest machines calls for a mapping granularity
* of 512KB. For 64-bit processes use a 512KB alignment and a randomization
* of up to 1GB. For 31-bit processes the virtual address space is limited,
* use no alignment and limit the randomization to 8MB.
* of 512KB for the anonymous mapping base. For 64-bit processes use a
* 512KB alignment and a randomization of up to 1GB. For 31-bit processes
* the virtual address space is limited, use no alignment and limit the
* randomization to 8MB.
* For the additional randomization of the program break use 32MB for
* 64-bit and 8MB for 31-bit.
*/
#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL)
#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x1fffUL)
#define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL)
#define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL)
#define STACK_RND_MASK MMAP_RND_MASK

61
arch/s390/include/asm/lowcore.h
View File

@ -91,52 +91,53 @@ struct lowcore {
__u64 hardirq_timer; /* 0x02e8 */
__u64 softirq_timer; /* 0x02f0 */
__u64 steal_timer; /* 0x02f8 */
__u64 last_update_timer; /* 0x0300 */
__u64 last_update_clock; /* 0x0308 */
__u64 int_clock; /* 0x0310 */
__u64 mcck_clock; /* 0x0318 */
__u64 clock_comparator; /* 0x0320 */
__u64 boot_clock[2]; /* 0x0328 */
__u64 avg_steal_timer; /* 0x0300 */
__u64 last_update_timer; /* 0x0308 */
__u64 last_update_clock; /* 0x0310 */
__u64 int_clock; /* 0x0318*/
__u64 mcck_clock; /* 0x0320 */
__u64 clock_comparator; /* 0x0328 */
__u64 boot_clock[2]; /* 0x0330 */
/* Current process. */
__u64 current_task; /* 0x0338 */
__u64 kernel_stack; /* 0x0340 */
__u64 current_task; /* 0x0340 */
__u64 kernel_stack; /* 0x0348 */
/* Interrupt, DAT-off and restartstack. */
__u64 async_stack; /* 0x0348 */
__u64 nodat_stack; /* 0x0350 */
__u64 restart_stack; /* 0x0358 */
__u64 async_stack; /* 0x0350 */
__u64 nodat_stack; /* 0x0358 */
__u64 restart_stack; /* 0x0360 */
/* Restart function and parameter. */
__u64 restart_fn; /* 0x0360 */
__u64 restart_data; /* 0x0368 */
__u64 restart_source; /* 0x0370 */
__u64 restart_fn; /* 0x0368 */
__u64 restart_data; /* 0x0370 */
__u64 restart_source; /* 0x0378 */
/* Address space pointer. */
__u64 kernel_asce; /* 0x0378 */
__u64 user_asce; /* 0x0380 */
__u64 vdso_asce; /* 0x0388 */
__u64 kernel_asce; /* 0x0380 */
__u64 user_asce; /* 0x0388 */
__u64 vdso_asce; /* 0x0390 */
/*
* The lpp and current_pid fields form a
* 64-bit value that is set as program
* parameter with the LPP instruction.
*/
__u32 lpp; /* 0x0390 */
__u32 current_pid; /* 0x0394 */
__u32 lpp; /* 0x0398 */
__u32 current_pid; /* 0x039c */
/* SMP info area */
__u32 cpu_nr; /* 0x0398 */
__u32 softirq_pending; /* 0x039c */
__u32 preempt_count; /* 0x03a0 */
__u32 spinlock_lockval; /* 0x03a4 */
__u32 spinlock_index; /* 0x03a8 */
__u32 fpu_flags; /* 0x03ac */
__u64 percpu_offset; /* 0x03b0 */
__u64 vdso_per_cpu_data; /* 0x03b8 */
__u64 machine_flags; /* 0x03c0 */
__u64 gmap; /* 0x03c8 */
__u8 pad_0x03d0[0x0400-0x03d0]; /* 0x03d0 */
__u32 cpu_nr; /* 0x03a0 */
__u32 softirq_pending; /* 0x03a4 */
__u32 preempt_count; /* 0x03a8 */
__u32 spinlock_lockval; /* 0x03ac */
__u32 spinlock_index; /* 0x03b0 */
__u32 fpu_flags; /* 0x03b4 */
__u64 percpu_offset; /* 0x03b8 */
__u64 vdso_per_cpu_data; /* 0x03c0 */
__u64 machine_flags; /* 0x03c8 */
__u64 gmap; /* 0x03d0 */
__u8 pad_0x03d8[0x0400-0x03d8]; /* 0x03d8 */
/* br %r1 trampoline */
__u16 br_r1_trampoline; /* 0x0400 */

19
arch/s390/kernel/perf_cpum_cf_diag.c
View File

@ -196,23 +196,30 @@ static void cf_diag_perf_event_destroy(struct perf_event *event)
*/
static int __hw_perf_event_init(struct perf_event *event)
{
struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
struct perf_event_attr *attr = &event->attr;
struct cpu_cf_events *cpuhw;
enum cpumf_ctr_set i;
int err = 0;
debug_sprintf_event(cf_diag_dbg, 5,
"%s event %p cpu %d authorized %#x\n", __func__,
event, event->cpu, cpuhw->info.auth_ctl);
debug_sprintf_event(cf_diag_dbg, 5, "%s event %p cpu %d\n", __func__,
event, event->cpu);
event->hw.config = attr->config;
event->hw.config_base = 0;
local64_set(&event->count, 0);
/* Add all authorized counter sets to config_base */
/* Add all authorized counter sets to config_base. The
* the hardware init function is either called per-cpu or just once
* for all CPUS (event->cpu == -1). This depends on the whether
* counting is started for all CPUs or on a per workload base where
* the perf event moves from one CPU to another CPU.
* Checking the authorization on any CPU is fine as the hardware
* applies the same authorization settings to all CPUs.
*/
cpuhw = &get_cpu_var(cpu_cf_events);
for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i)
if (cpuhw->info.auth_ctl & cpumf_ctr_ctl[i])
event->hw.config_base |= cpumf_ctr_ctl[i];
put_cpu_var(cpu_cf_events);
/* No authorized counter sets, nothing to count/sample */
if (!event->hw.config_base) {

3
arch/s390/kernel/smp.c
View File

@ -266,7 +266,8 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
lc->percpu_offset = __per_cpu_offset[cpu];
lc->kernel_asce = S390_lowcore.kernel_asce;
lc->machine_flags = S390_lowcore.machine_flags;
lc->user_timer = lc->system_timer = lc->steal_timer = 0;
lc->user_timer = lc->system_timer =
lc->steal_timer = lc->avg_steal_timer = 0;
__ctl_store(lc->cregs_save_area, 0, 15);
save_access_regs((unsigned int *) lc->access_regs_save_area);
memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,

19
arch/s390/kernel/vtime.c
View File

@ -124,7 +124,7 @@ static void account_system_index_scaled(struct task_struct *p, u64 cputime,
*/
static int do_account_vtime(struct task_struct *tsk)
{
u64 timer, clock, user, guest, system, hardirq, softirq, steal;
u64 timer, clock, user, guest, system, hardirq, softirq;
timer = S390_lowcore.last_update_timer;
clock = S390_lowcore.last_update_clock;
@ -182,12 +182,6 @@ static int do_account_vtime(struct task_struct *tsk)
if (softirq)
account_system_index_scaled(tsk, softirq, CPUTIME_SOFTIRQ);
steal = S390_lowcore.steal_timer;
if ((s64) steal > 0) {
S390_lowcore.steal_timer = 0;
account_steal_time(cputime_to_nsecs(steal));
}
return virt_timer_forward(user + guest + system + hardirq + softirq);
}
@ -213,8 +207,19 @@ void vtime_task_switch(struct task_struct *prev)
*/
void vtime_flush(struct task_struct *tsk)
{
u64 steal, avg_steal;
if (do_account_vtime(tsk))
virt_timer_expire();
steal = S390_lowcore.steal_timer;
avg_steal = S390_lowcore.avg_steal_timer / 2;
if ((s64) steal > 0) {
S390_lowcore.steal_timer = 0;
account_steal_time(steal);
avg_steal += steal;
}
S390_lowcore.avg_steal_timer = avg_steal;
}
/*

13
drivers/s390/cio/chsc.c
View File

@ -24,6 +24,7 @@
#include <asm/crw.h>
#include <asm/isc.h>
#include <asm/ebcdic.h>
#include <asm/ap.h>
#include "css.h"
#include "cio.h"
@ -586,6 +587,15 @@ static void chsc_process_sei_scm_avail(struct chsc_sei_nt0_area *sei_area)
" failed (rc=%d).\n", ret);
}
static void chsc_process_sei_ap_cfg_chg(struct chsc_sei_nt0_area *sei_area)
{
CIO_CRW_EVENT(3, "chsc: ap config changed\n");
if (sei_area->rs != 5)
return;
ap_bus_cfg_chg();
}
static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
{
switch (sei_area->cc) {
@ -612,6 +622,9 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
case 2: /* i/o resource accessibility */
chsc_process_sei_res_acc(sei_area);
break;
case 3: /* ap config changed */
chsc_process_sei_ap_cfg_chg(sei_area);
break;
case 7: /* channel-path-availability information */
chsc_process_sei_chp_avail(sei_area);
break;

8
drivers/s390/cio/vfio_ccw_drv.c
View File

@ -72,20 +72,24 @@ static void vfio_ccw_sch_io_todo(struct work_struct *work)
{
struct vfio_ccw_private *private;
struct irb *irb;
bool is_final;
private = container_of(work, struct vfio_ccw_private, io_work);
irb = &private->irb;
is_final = !(scsw_actl(&irb->scsw) &
(SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT));
if (scsw_is_solicited(&irb->scsw)) {
cp_update_scsw(&private->cp, &irb->scsw);
cp_free(&private->cp);
if (is_final)
cp_free(&private->cp);
}
memcpy(private->io_region->irb_area, irb, sizeof(*irb));
if (private->io_trigger)
eventfd_signal(private->io_trigger, 1);
if (private->mdev)
if (private->mdev && is_final)
private->state = VFIO_CCW_STATE_IDLE;
}

19
drivers/s390/crypto/ap_bus.c
View File

@ -810,11 +810,18 @@ static int ap_device_remove(struct device *dev)
struct ap_device *ap_dev = to_ap_dev(dev);
struct ap_driver *ap_drv = ap_dev->drv;
/* prepare ap queue device removal */
if (is_queue_dev(dev))
ap_queue_remove(to_ap_queue(dev));
ap_queue_prepare_remove(to_ap_queue(dev));
/* driver's chance to clean up gracefully */
if (ap_drv->remove)
ap_drv->remove(ap_dev);
/* now do the ap queue device remove */
if (is_queue_dev(dev))
ap_queue_remove(to_ap_queue(dev));
/* Remove queue/card from list of active queues/cards */
spin_lock_bh(&ap_list_lock);
if (is_card_dev(dev))
@ -860,6 +867,16 @@ void ap_bus_force_rescan(void)
}
EXPORT_SYMBOL(ap_bus_force_rescan);
/*
* A config change has happened, force an ap bus rescan.
*/
void ap_bus_cfg_chg(void)
{
AP_DBF(DBF_INFO, "%s config change, forcing bus rescan\n", __func__);
ap_bus_force_rescan();
}
/*
* hex2bitmap() - parse hex mask string and set bitmap.
* Valid strings are "0x012345678" with at least one valid hex number.

2
drivers/s390/crypto/ap_bus.h
View File

@ -91,6 +91,7 @@ enum ap_state {
AP_STATE_WORKING,
AP_STATE_QUEUE_FULL,
AP_STATE_SUSPEND_WAIT,
AP_STATE_REMOVE, /* about to be removed from driver */
AP_STATE_UNBOUND, /* momentary not bound to a driver */
AP_STATE_BORKED, /* broken */
NR_AP_STATES
@ -252,6 +253,7 @@ void ap_bus_force_rescan(void);
void ap_queue_init_reply(struct ap_queue *aq, struct ap_message *ap_msg);
struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type);
void ap_queue_prepare_remove(struct ap_queue *aq);
void ap_queue_remove(struct ap_queue *aq);
void ap_queue_suspend(struct ap_device *ap_dev);
void ap_queue_resume(struct ap_device *ap_dev);

28
drivers/s390/crypto/ap_queue.c
View File

@ -420,6 +420,10 @@ static ap_func_t *ap_jumptable[NR_AP_STATES][NR_AP_EVENTS] = {
[AP_EVENT_POLL] = ap_sm_suspend_read,
[AP_EVENT_TIMEOUT] = ap_sm_nop,
},
[AP_STATE_REMOVE] = {
[AP_EVENT_POLL] = ap_sm_nop,
[AP_EVENT_TIMEOUT] = ap_sm_nop,
},
[AP_STATE_UNBOUND] = {
[AP_EVENT_POLL] = ap_sm_nop,
[AP_EVENT_TIMEOUT] = ap_sm_nop,
@ -740,18 +744,31 @@ void ap_flush_queue(struct ap_queue *aq)
}
EXPORT_SYMBOL(ap_flush_queue);
void ap_queue_prepare_remove(struct ap_queue *aq)
{
spin_lock_bh(&aq->lock);
/* flush queue */
__ap_flush_queue(aq);
/* set REMOVE state to prevent new messages are queued in */
aq->state = AP_STATE_REMOVE;
del_timer_sync(&aq->timeout);
spin_unlock_bh(&aq->lock);
}
void ap_queue_remove(struct ap_queue *aq)
{
ap_flush_queue(aq);
del_timer_sync(&aq->timeout);
/* reset with zero, also clears irq registration */
/*
* all messages have been flushed and the state is
* AP_STATE_REMOVE. Now reset with zero which also
* clears the irq registration and move the state
* to AP_STATE_UNBOUND to signal that this queue
* is not used by any driver currently.
*/
spin_lock_bh(&aq->lock);
ap_zapq(aq->qid);
aq->state = AP_STATE_UNBOUND;
spin_unlock_bh(&aq->lock);
}
EXPORT_SYMBOL(ap_queue_remove);
void ap_queue_reinit_state(struct ap_queue *aq)
{
@ -760,4 +777,3 @@ void ap_queue_reinit_state(struct ap_queue *aq)
ap_wait(ap_sm_event(aq, AP_EVENT_POLL));
spin_unlock_bh(&aq->lock);
}
EXPORT_SYMBOL(ap_queue_reinit_state);

30
drivers/s390/crypto/zcrypt_api.c
View File

@ -586,6 +586,7 @@ static inline bool zcrypt_check_queue(struct ap_perms *perms, int queue)
static inline struct zcrypt_queue *zcrypt_pick_queue(struct zcrypt_card *zc,
struct zcrypt_queue *zq,
struct module **pmod,
unsigned int weight)
{
if (!zq || !try_module_get(zq->queue->ap_dev.drv->driver.owner))
@ -595,15 +596,15 @@ static inline struct zcrypt_queue *zcrypt_pick_queue(struct zcrypt_card *zc,
atomic_add(weight, &zc->load);
atomic_add(weight, &zq->load);
zq->request_count++;
*pmod = zq->queue->ap_dev.drv->driver.owner;
return zq;
}
static inline void zcrypt_drop_queue(struct zcrypt_card *zc,
struct zcrypt_queue *zq,
struct module *mod,
unsigned int weight)
{
struct module *mod = zq->queue->ap_dev.drv->driver.owner;
zq->request_count--;
atomic_sub(weight, &zc->load);
atomic_sub(weight, &zq->load);
@ -653,6 +654,7 @@ static long zcrypt_rsa_modexpo(struct ap_perms *perms,
unsigned int weight, pref_weight;
unsigned int func_code;
int qid = 0, rc = -ENODEV;
struct module *mod;
trace_s390_zcrypt_req(mex, TP_ICARSAMODEXPO);
@ -706,7 +708,7 @@ static long zcrypt_rsa_modexpo(struct ap_perms *perms,
pref_weight = weight;
}
}
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, &mod, weight);
spin_unlock(&zcrypt_list_lock);
if (!pref_zq) {
@ -718,7 +720,7 @@ static long zcrypt_rsa_modexpo(struct ap_perms *perms,
rc = pref_zq->ops->rsa_modexpo(pref_zq, mex);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, weight);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
spin_unlock(&zcrypt_list_lock);
out:
@ -735,6 +737,7 @@ static long zcrypt_rsa_crt(struct ap_perms *perms,
unsigned int weight, pref_weight;
unsigned int func_code;
int qid = 0, rc = -ENODEV;
struct module *mod;
trace_s390_zcrypt_req(crt, TP_ICARSACRT);
@ -788,7 +791,7 @@ static long zcrypt_rsa_crt(struct ap_perms *perms,
pref_weight = weight;
}
}
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, &mod, weight);
spin_unlock(&zcrypt_list_lock);
if (!pref_zq) {
@ -800,7 +803,7 @@ static long zcrypt_rsa_crt(struct ap_perms *perms,
rc = pref_zq->ops->rsa_modexpo_crt(pref_zq, crt);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, weight);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
spin_unlock(&zcrypt_list_lock);
out:
@ -819,6 +822,7 @@ static long _zcrypt_send_cprb(struct ap_perms *perms,
unsigned int func_code;
unsigned short *domain;
int qid = 0, rc = -ENODEV;
struct module *mod;
trace_s390_zcrypt_req(xcRB, TB_ZSECSENDCPRB);
@ -865,7 +869,7 @@ static long _zcrypt_send_cprb(struct ap_perms *perms,
pref_weight = weight;
}
}
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, &mod, weight);
spin_unlock(&zcrypt_list_lock);
if (!pref_zq) {
@ -881,7 +885,7 @@ static long _zcrypt_send_cprb(struct ap_perms *perms,
rc = pref_zq->ops->send_cprb(pref_zq, xcRB, &ap_msg);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, weight);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
spin_unlock(&zcrypt_list_lock);
out:
@ -932,6 +936,7 @@ static long zcrypt_send_ep11_cprb(struct ap_perms *perms,
unsigned int func_code;
struct ap_message ap_msg;
int qid = 0, rc = -ENODEV;
struct module *mod;
trace_s390_zcrypt_req(xcrb, TP_ZSENDEP11CPRB);
@ -1000,7 +1005,7 @@ static long zcrypt_send_ep11_cprb(struct ap_perms *perms,
pref_weight = weight;
}
}
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, &mod, weight);
spin_unlock(&zcrypt_list_lock);
if (!pref_zq) {
@ -1012,7 +1017,7 @@ static long zcrypt_send_ep11_cprb(struct ap_perms *perms,
rc = pref_zq->ops->send_ep11_cprb(pref_zq, xcrb, &ap_msg);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, weight);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
spin_unlock(&zcrypt_list_lock);
out_free:
@ -1033,6 +1038,7 @@ static long zcrypt_rng(char *buffer)
struct ap_message ap_msg;
unsigned int domain;
int qid = 0, rc = -ENODEV;
struct module *mod;
trace_s390_zcrypt_req(buffer, TP_HWRNGCPRB);
@ -1064,7 +1070,7 @@ static long zcrypt_rng(char *buffer)
pref_weight = weight;
}
}
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, weight);
pref_zq = zcrypt_pick_queue(pref_zc, pref_zq, &mod, weight);
spin_unlock(&zcrypt_list_lock);
if (!pref_zq) {
@ -1076,7 +1082,7 @@ static long zcrypt_rng(char *buffer)
rc = pref_zq->ops->rng(pref_zq, buffer, &ap_msg);
spin_lock(&zcrypt_list_lock);
zcrypt_drop_queue(pref_zc, pref_zq, weight);
zcrypt_drop_queue(pref_zc, pref_zq, mod, weight);
spin_unlock(&zcrypt_list_lock);
out:

49
drivers/soc/bcm/bcm2835-power.c
View File

@ -150,7 +150,12 @@ struct bcm2835_power {
static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg)
{
u64 start = ktime_get_ns();
u64 start;
if (!reg)
return 0;
start = ktime_get_ns();
/* Enable the module's async AXI bridges. */
ASB_WRITE(reg, ASB_READ(reg) & ~ASB_REQ_STOP);
@ -165,7 +170,12 @@ static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg)
static int bcm2835_asb_disable(struct bcm2835_power *power, u32 reg)
{
u64 start = ktime_get_ns();
u64 start;
if (!reg)
return 0;
start = ktime_get_ns();
/* Enable the module's async AXI bridges. */
ASB_WRITE(reg, ASB_READ(reg) | ASB_REQ_STOP);
@ -475,7 +485,7 @@ static int bcm2835_power_pd_power_off(struct generic_pm_domain *domain)
}
}
static void
static int
bcm2835_init_power_domain(struct bcm2835_power *power,
int pd_xlate_index, const char *name)
{
@ -483,6 +493,17 @@ bcm2835_init_power_domain(struct bcm2835_power *power,
struct bcm2835_power_domain *dom = &power->domains[pd_xlate_index];
dom->clk = devm_clk_get(dev->parent, name);
if (IS_ERR(dom->clk)) {
int ret = PTR_ERR(dom->clk);
if (ret == -EPROBE_DEFER)
return ret;
/* Some domains don't have a clk, so make sure that we
* don't deref an error pointer later.
*/
dom->clk = NULL;
}
dom->base.name = name;
dom->base.power_on = bcm2835_power_pd_power_on;
@ -495,6 +516,8 @@ bcm2835_init_power_domain(struct bcm2835_power *power,
pm_genpd_init(&dom->base, NULL, true);
power->pd_xlate.domains[pd_xlate_index] = &dom->base;
return 0;
}
/** bcm2835_reset_reset - Resets a block that has a reset line in the
@ -592,7 +615,7 @@ static int bcm2835_power_probe(struct platform_device *pdev)
{ BCM2835_POWER_DOMAIN_IMAGE_PERI, BCM2835_POWER_DOMAIN_CAM0 },
{ BCM2835_POWER_DOMAIN_IMAGE_PERI, BCM2835_POWER_DOMAIN_CAM1 },
};
int ret, i;
int ret = 0, i;
u32 id;
power = devm_kzalloc(dev, sizeof(*power), GFP_KERNEL);
@ -619,8 +642,11 @@ static int bcm2835_power_probe(struct platform_device *pdev)
power->pd_xlate.num_domains = ARRAY_SIZE(power_domain_names);
for (i = 0; i < ARRAY_SIZE(power_domain_names); i++)
bcm2835_init_power_domain(power, i, power_domain_names[i]);
for (i = 0; i < ARRAY_SIZE(power_domain_names); i++) {
ret = bcm2835_init_power_domain(power, i, power_domain_names[i]);
if (ret)
goto fail;
}
for (i = 0; i < ARRAY_SIZE(domain_deps); i++) {
pm_genpd_add_subdomain(&power->domains[domain_deps[i].parent].base,
@ -634,12 +660,21 @@ static int bcm2835_power_probe(struct platform_device *pdev)
ret = devm_reset_controller_register(dev, &power->reset);
if (ret)
return ret;
goto fail;
of_genpd_add_provider_onecell(dev->parent->of_node, &power->pd_xlate);
dev_info(dev, "Broadcom BCM2835 power domains driver");
return 0;
fail:
for (i = 0; i < ARRAY_SIZE(power_domain_names); i++) {
struct generic_pm_domain *dom = &power->domains[i].base;
if (dom->name)
pm_genpd_remove(dom);
}
return ret;
}
static int bcm2835_power_remove(struct platform_device *pdev)

6
fs/afs/fsclient.c
View File

@ -1515,8 +1515,8 @@ static int afs_fs_setattr_size64(struct afs_fs_cursor *fc, struct iattr *attr)
xdr_encode_AFS_StoreStatus(&bp, attr);
*bp++ = 0; /* position of start of write */
*bp++ = 0;
*bp++ = htonl(attr->ia_size >> 32); /* position of start of write */
*bp++ = htonl((u32) attr->ia_size);
*bp++ = 0; /* size of write */
*bp++ = 0;
*bp++ = htonl(attr->ia_size >> 32); /* new file length */
@ -1564,7 +1564,7 @@ static int afs_fs_setattr_size(struct afs_fs_cursor *fc, struct iattr *attr)
xdr_encode_AFS_StoreStatus(&bp, attr);
*bp++ = 0; /* position of start of write */
*bp++ = htonl(attr->ia_size); /* position of start of write */
*bp++ = 0; /* size of write */
*bp++ = htonl(attr->ia_size); /* new file length */

2
fs/afs/yfsclient.c
View File

@ -1514,7 +1514,7 @@ static int yfs_fs_setattr_size(struct afs_fs_cursor *fc, struct iattr *attr)
bp = xdr_encode_u32(bp, 0); /* RPC flags */
bp = xdr_encode_YFSFid(bp, &vnode->fid);
bp = xdr_encode_YFS_StoreStatus(bp, attr);
bp = xdr_encode_u64(bp, 0); /* position of start of write */
bp = xdr_encode_u64(bp, attr->ia_size); /* position of start of write */
bp = xdr_encode_u64(bp, 0); /* size of write */
bp = xdr_encode_u64(bp, attr->ia_size); /* new file length */
yfs_check_req(call, bp);

2
tools/arch/alpha/include/uapi/asm/mman.h
View File

@ -27,8 +27,6 @@
#define MAP_NONBLOCK 0x40000
#define MAP_NORESERVE 0x10000
#define MAP_POPULATE 0x20000
#define MAP_PRIVATE 0x02
#define MAP_SHARED 0x01
#define MAP_STACK 0x80000
#define PROT_EXEC 0x4
#define PROT_GROWSDOWN 0x01000000

2
tools/arch/mips/include/uapi/asm/mman.h
View File

@ -28,8 +28,6 @@
#define MAP_NONBLOCK 0x20000
#define MAP_NORESERVE 0x0400
#define MAP_POPULATE 0x10000
#define MAP_PRIVATE 0x002
#define MAP_SHARED 0x001
#define MAP_STACK 0x40000
#define PROT_EXEC 0x04
#define PROT_GROWSDOWN 0x01000000

2
tools/arch/parisc/include/uapi/asm/mman.h
View File

@ -27,8 +27,6 @@
#define MAP_NONBLOCK 0x20000
#define MAP_NORESERVE 0x4000
#define MAP_POPULATE 0x10000
#define MAP_PRIVATE 0x02
#define MAP_SHARED 0x01
#define MAP_STACK 0x40000
#define PROT_EXEC 0x4
#define PROT_GROWSDOWN 0x01000000

2
tools/arch/powerpc/include/uapi/asm/kvm.h
View File

@ -463,10 +463,12 @@ struct kvm_ppc_cpu_char {
#define KVM_PPC_CPU_CHAR_BR_HINT_HONOURED (1ULL << 58)
#define KVM_PPC_CPU_CHAR_MTTRIG_THR_RECONF (1ULL << 57)
#define KVM_PPC_CPU_CHAR_COUNT_CACHE_DIS (1ULL << 56)
#define KVM_PPC_CPU_CHAR_BCCTR_FLUSH_ASSIST (1ull << 54)
#define KVM_PPC_CPU_BEHAV_FAVOUR_SECURITY (1ULL << 63)
#define KVM_PPC_CPU_BEHAV_L1D_FLUSH_PR (1ULL << 62)
#define KVM_PPC_CPU_BEHAV_BNDS_CHK_SPEC_BAR (1ULL << 61)
#define KVM_PPC_CPU_BEHAV_FLUSH_COUNT_CACHE (1ull << 58)
/* Per-vcpu XICS interrupt controller state */
#define KVM_REG_PPC_ICP_STATE (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x8c)

1
tools/arch/x86/include/asm/cpufeatures.h
View File

@ -344,6 +344,7 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
#define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */

2
tools/arch/xtensa/include/uapi/asm/mman.h
View File

@ -27,8 +27,6 @@
#define MAP_NONBLOCK 0x20000
#define MAP_NORESERVE 0x0400
#define MAP_POPULATE 0x10000
#define MAP_PRIVATE 0x002
#define MAP_SHARED 0x001
#define MAP_STACK 0x40000
#define PROT_EXEC 0x4
#define PROT_GROWSDOWN 0x01000000

4
tools/build/feature/test-libopencsd.c
View File

@ -4,9 +4,9 @@
/*
* Check OpenCSD library version is sufficient to provide required features
*/
#define OCSD_MIN_VER ((0 << 16) | (10 << 8) | (0))
#define OCSD_MIN_VER ((0 << 16) | (11 << 8) | (0))
#if !defined(OCSD_VER_NUM) || (OCSD_VER_NUM < OCSD_MIN_VER)
#error "OpenCSD >= 0.10.0 is required"
#error "OpenCSD >= 0.11.0 is required"
#endif
int main(void)

23
tools/include/uapi/asm-generic/mman-common-tools.h Normal file
View File

@ -0,0 +1,23 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_GENERIC_MMAN_COMMON_TOOLS_ONLY_H
#define __ASM_GENERIC_MMAN_COMMON_TOOLS_ONLY_H
#include <asm-generic/mman-common.h>
/* We need this because we need to have tools/include/uapi/ included in the tools
* header search path to get access to stuff that is not yet in the system's
* copy of the files in that directory, but since this cset:
*
* 746c9398f5ac ("arch: move common mmap flags to linux/mman.h")
*
* We end up making sys/mman.h, that is in the system headers, to not find the
* MAP_SHARED and MAP_PRIVATE defines because they are not anymore in our copy
* of asm-generic/mman-common.h. So we define them here and include this header
* from each of the per arch mman.h headers.
*/
#ifndef MAP_SHARED
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
#endif
#endif // __ASM_GENERIC_MMAN_COMMON_TOOLS_ONLY_H

4
tools/include/uapi/asm-generic/mman-common.h
View File

@ -15,9 +15,7 @@
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x0f /* Mask for type of mapping */
#define MAP_FIXED 0x10 /* Interpret addr exactly */
#define MAP_ANONYMOUS 0x20 /* don't use a file */

2
tools/include/uapi/asm-generic/mman.h
View File

@ -2,7 +2,7 @@
#ifndef __ASM_GENERIC_MMAN_H
#define __ASM_GENERIC_MMAN_H
#include <asm-generic/mman-common.h>
#include <asm-generic/mman-common-tools.h>
#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
#define MAP_DENYWRITE 0x0800 /* ETXTBSY */

11
tools/include/uapi/asm-generic/unistd.h
View File

@ -824,8 +824,17 @@ __SYSCALL(__NR_futex_time64, sys_futex)
__SYSCALL(__NR_sched_rr_get_interval_time64, sys_sched_rr_get_interval)
#endif
#define __NR_pidfd_send_signal 424
__SYSCALL(__NR_pidfd_send_signal, sys_pidfd_send_signal)
#define __NR_io_uring_setup 425
__SYSCALL(__NR_io_uring_setup, sys_io_uring_setup)
#define __NR_io_uring_enter 426
__SYSCALL(__NR_io_uring_enter, sys_io_uring_enter)
#define __NR_io_uring_register 427
__SYSCALL(__NR_io_uring_register, sys_io_uring_register)
#undef __NR_syscalls
#define __NR_syscalls 424
#define __NR_syscalls 428
/*
* 32 bit systems traditionally used different

64
tools/include/uapi/drm/i915_drm.h
View File

@ -1486,9 +1486,73 @@ struct drm_i915_gem_context_param {
#define I915_CONTEXT_MAX_USER_PRIORITY 1023 /* inclusive */
#define I915_CONTEXT_DEFAULT_PRIORITY 0
#define I915_CONTEXT_MIN_USER_PRIORITY -1023 /* inclusive */
/*
* When using the following param, value should be a pointer to
* drm_i915_gem_context_param_sseu.
*/
#define I915_CONTEXT_PARAM_SSEU 0x7
__u64 value;
};
/**
* Context SSEU programming
*
* It may be necessary for either functional or performance reason to configure
* a context to run with a reduced number of SSEU (where SSEU stands for Slice/
* Sub-slice/EU).
*
* This is done by configuring SSEU configuration using the below
* @struct drm_i915_gem_context_param_sseu for every supported engine which
* userspace intends to use.
*
* Not all GPUs or engines support this functionality in which case an error
* code -ENODEV will be returned.
*
* Also, flexibility of possible SSEU configuration permutations varies between
* GPU generations and software imposed limitations. Requesting such a
* combination will return an error code of -EINVAL.
*
* NOTE: When perf/OA is active the context's SSEU configuration is ignored in
* favour of a single global setting.
*/
struct drm_i915_gem_context_param_sseu {
/*
* Engine class & instance to be configured or queried.
*/
__u16 engine_class;
__u16 engine_instance;
/*
* Unused for now. Must be cleared to zero.
*/
__u32 flags;
/*
* Mask of slices to enable for the context. Valid values are a subset
* of the bitmask value returned for I915_PARAM_SLICE_MASK.
*/
__u64 slice_mask;
/*
* Mask of subslices to enable for the context. Valid values are a
* subset of the bitmask value return by I915_PARAM_SUBSLICE_MASK.
*/
__u64 subslice_mask;
/*
* Minimum/Maximum number of EUs to enable per subslice for the
* context. min_eus_per_subslice must be inferior or equal to
* max_eus_per_subslice.
*/
__u16 min_eus_per_subslice;
__u16 max_eus_per_subslice;
/*
* Unused for now. Must be cleared to zero.
*/
__u32 rsvd;
};
enum drm_i915_oa_format {
I915_OA_FORMAT_A13 = 1, /* HSW only */
I915_OA_FORMAT_A29, /* HSW only */

1
tools/include/uapi/linux/fcntl.h
View File

@ -41,6 +41,7 @@
#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
#define F_SEAL_GROW 0x0004 /* prevent file from growing */
#define F_SEAL_WRITE 0x0008 /* prevent writes */
#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
/* (1U << 31) is reserved for signed error codes */
/*

4
tools/include/uapi/linux/mman.h
View File

@ -12,6 +12,10 @@
#define OVERCOMMIT_ALWAYS 1
#define OVERCOMMIT_NEVER 2
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/*
* Huge page size encoding when MAP_HUGETLB is specified, and a huge page
* size other than the default is desired. See hugetlb_encode.h.

4
tools/perf/Makefile.perf
View File

@ -481,8 +481,8 @@ $(madvise_behavior_array): $(madvise_hdr_dir)/mman-common.h $(madvise_behavior_t
mmap_flags_array := $(beauty_outdir)/mmap_flags_array.c
mmap_flags_tbl := $(srctree)/tools/perf/trace/beauty/mmap_flags.sh
$(mmap_flags_array): $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(mmap_flags_tbl)
$(Q)$(SHELL) '$(mmap_flags_tbl)' $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
$(mmap_flags_array): $(linux_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(mmap_flags_tbl)
$(Q)$(SHELL) '$(mmap_flags_tbl)' $(linux_uapi_dir) $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
mount_flags_array := $(beauty_outdir)/mount_flags_array.c
mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/mount_flags.sh

4
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
View File

@ -345,6 +345,10 @@
334 common rseq __x64_sys_rseq
# don't use numbers 387 through 423, add new calls after the last
# 'common' entry
424 common pidfd_send_signal __x64_sys_pidfd_send_signal
425 common io_uring_setup __x64_sys_io_uring_setup
426 common io_uring_enter __x64_sys_io_uring_enter
427 common io_uring_register __x64_sys_io_uring_register
#
# x32-specific system call numbers start at 512 to avoid cache impact

2
tools/perf/check-headers.sh
View File

@ -103,7 +103,7 @@ done
# diff with extra ignore lines
check arch/x86/lib/memcpy_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>"'
check arch/x86/lib/memset_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>"'
check include/uapi/asm-generic/mman.h '-I "^#include <\(uapi/\)*asm-generic/mman-common.h>"'
check include/uapi/asm-generic/mman.h '-I "^#include <\(uapi/\)*asm-generic/mman-common\(-tools\)*.h>"'
check include/uapi/linux/mman.h '-I "^#include <\(uapi/\)*asm/mman.h>"'
# diff non-symmetric files

77
tools/perf/scripts/python/exported-sql-viewer.py
View File

@ -107,6 +107,7 @@ import os
from PySide.QtCore import *
from PySide.QtGui import *
from PySide.QtSql import *
pyside_version_1 = True
from decimal import *
from ctypes import *
from multiprocessing import Process, Array, Value, Event
@ -1526,6 +1527,19 @@ def BranchDataPrep(query):
" (" + dsoname(query.value(15)) + ")")
return data
def BranchDataPrepWA(query):
data = []
data.append(query.value(0))
# Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
data.append("{:>19}".format(query.value(1)))
for i in xrange(2, 8):
data.append(query.value(i))
data.append(tohex(query.value(8)).rjust(16) + " " + query.value(9) + offstr(query.value(10)) +
" (" + dsoname(query.value(11)) + ")" + " -> " +
tohex(query.value(12)) + " " + query.value(13) + offstr(query.value(14)) +
" (" + dsoname(query.value(15)) + ")")
return data
# Branch data model
class BranchModel(TreeModel):
@ -1553,7 +1567,11 @@ class BranchModel(TreeModel):
" AND evsel_id = " + str(self.event_id) +
" ORDER BY samples.id"
" LIMIT " + str(glb_chunk_sz))
self.fetcher = SQLFetcher(glb, sql, BranchDataPrep, self.AddSample)
if pyside_version_1 and sys.version_info[0] == 3:
prep = BranchDataPrepWA
else:
prep = BranchDataPrep
self.fetcher = SQLFetcher(glb, sql, prep, self.AddSample)
self.fetcher.done.connect(self.Update)
self.fetcher.Fetch(glb_chunk_sz)
@ -2079,14 +2097,6 @@ def IsSelectable(db, table, sql = ""):
return False
return True
# SQL data preparation
def SQLTableDataPrep(query, count):
data = []
for i in xrange(count):
data.append(query.value(i))
return data
# SQL table data model item
class SQLTableItem():
@ -2110,7 +2120,7 @@ class SQLTableModel(TableModel):
self.more = True
self.populated = 0
self.column_headers = column_headers
self.fetcher = SQLFetcher(glb, sql, lambda x, y=len(column_headers): SQLTableDataPrep(x, y), self.AddSample)
self.fetcher = SQLFetcher(glb, sql, lambda x, y=len(column_headers): self.SQLTableDataPrep(x, y), self.AddSample)
self.fetcher.done.connect(self.Update)
self.fetcher.Fetch(glb_chunk_sz)
@ -2154,6 +2164,12 @@ class SQLTableModel(TableModel):
def columnHeader(self, column):
return self.column_headers[column]
def SQLTableDataPrep(self, query, count):
data = []
for i in xrange(count):
data.append(query.value(i))
return data
# SQL automatic table data model
class SQLAutoTableModel(SQLTableModel):
@ -2182,8 +2198,32 @@ class SQLAutoTableModel(SQLTableModel):
QueryExec(query, "SELECT column_name FROM information_schema.columns WHERE table_schema = '" + schema + "' and table_name = '" + select_table_name + "'")
while query.next():
column_headers.append(query.value(0))
if pyside_version_1 and sys.version_info[0] == 3:
if table_name == "samples_view":
self.SQLTableDataPrep = self.samples_view_DataPrep
if table_name == "samples":
self.SQLTableDataPrep = self.samples_DataPrep
super(SQLAutoTableModel, self).__init__(glb, sql, column_headers, parent)
def samples_view_DataPrep(self, query, count):
data = []
data.append(query.value(0))
# Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
data.append("{:>19}".format(query.value(1)))
for i in xrange(2, count):
data.append(query.value(i))
return data
def samples_DataPrep(self, query, count):
data = []
for i in xrange(9):
data.append(query.value(i))
# Workaround pyside failing to handle large integers (i.e. time) in python3 by converting to a string
data.append("{:>19}".format(query.value(9)))
for i in xrange(10, count):
data.append(query.value(i))
return data
# Base class for custom ResizeColumnsToContents
class ResizeColumnsToContentsBase(QObject):
@ -2868,9 +2908,13 @@ class LibXED():
ok = self.xed_format_context(2, inst.xedp, inst.bufferp, sizeof(inst.buffer), ip, 0, 0)
if not ok:
return 0, ""
if sys.version_info[0] == 2:
result = inst.buffer.value
else:
result = inst.buffer.value.decode()
# Return instruction length and the disassembled instruction text
# For now, assume the length is in byte 166
return inst.xedd[166], inst.buffer.value
return inst.xedd[166], result
def TryOpen(file_name):
try:
@ -2886,9 +2930,14 @@ def Is64Bit(f):
header = f.read(7)
f.seek(pos)
magic = header[0:4]
eclass = ord(header[4])
encoding = ord(header[5])
version = ord(header[6])
if sys.version_info[0] == 2:
eclass = ord(header[4])
encoding = ord(header[5])
version = ord(header[6])
else:
eclass = header[4]
encoding = header[5]
version = header[6]
if magic == chr(127) + "ELF" and eclass > 0 and eclass < 3 and encoding > 0 and encoding < 3 and version == 1:
result = True if eclass == 2 else False
return result

14
tools/perf/trace/beauty/mmap_flags.sh
View File

@ -1,15 +1,18 @@
#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1
if [ $# -ne 2 ] ; then
if [ $# -ne 3 ] ; then
[ $# -eq 1 ] && hostarch=$1 || hostarch=`uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/`
linux_header_dir=tools/include/uapi/linux
header_dir=tools/include/uapi/asm-generic
arch_header_dir=tools/arch/${hostarch}/include/uapi/asm
else
header_dir=$1
arch_header_dir=$2
linux_header_dir=$1
header_dir=$2
arch_header_dir=$3
fi
linux_mman=${linux_header_dir}/mman.h
arch_mman=${arch_header_dir}/mman.h
# those in egrep -vw are flags, we want just the bits
@ -20,6 +23,11 @@ egrep -q $regex ${arch_mman} && \
(egrep $regex ${arch_mman} | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n")
egrep -q $regex ${linux_mman} && \
(egrep $regex ${linux_mman} | \
egrep -vw 'MAP_(UNINITIALIZED|TYPE|SHARED_VALIDATE)' | \
sed -r "s/$regex/\2 \1/g" | \
xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n")
([ ! -f ${arch_mman} ] || egrep -q '#[[:space:]]*include[[:space:]]+<uapi/asm-generic/mman.*' ${arch_mman}) &&
(egrep $regex ${header_dir}/mman-common.h | \
egrep -vw 'MAP_(UNINITIALIZED|TYPE|SHARED_VALIDATE)' | \

1
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
View File

@ -387,6 +387,7 @@ cs_etm_decoder__buffer_range(struct cs_etm_decoder *decoder,
break;
case OCSD_INSTR_ISB:
case OCSD_INSTR_DSB_DMB:
case OCSD_INSTR_WFI_WFE:
case OCSD_INSTR_OTHER:
default:
packet->last_instr_taken_branch = false;

29
tools/perf/util/evlist.c
View File

@ -231,35 +231,6 @@ void perf_evlist__set_leader(struct perf_evlist *evlist)
}
}
void perf_event_attr__set_max_precise_ip(struct perf_event_attr *pattr)
{
struct perf_event_attr attr = {
.type = PERF_TYPE_HARDWARE,
.config = PERF_COUNT_HW_CPU_CYCLES,
.exclude_kernel = 1,
.precise_ip = 3,
};
event_attr_init(&attr);
/*
* Unnamed union member, not supported as struct member named
* initializer in older compilers such as gcc 4.4.7
*/
attr.sample_period = 1;
while (attr.precise_ip != 0) {
int fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
if (fd != -1) {
close(fd);
break;
}
--attr.precise_ip;
}
pattr->precise_ip = attr.precise_ip;
}
int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise)
{
struct perf_evsel *evsel = perf_evsel__new_cycles(precise);

2
tools/perf/util/evlist.h
View File

@ -315,8 +315,6 @@ void perf_evlist__to_front(struct perf_evlist *evlist,
void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
struct perf_evsel *tracking_evsel);
void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
struct perf_evsel *
perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);

72
tools/perf/util/evsel.c
View File

@ -295,7 +295,6 @@ struct perf_evsel *perf_evsel__new_cycles(bool precise)
if (!precise)
goto new_event;
perf_event_attr__set_max_precise_ip(&attr);
/*
* Now let the usual logic to set up the perf_event_attr defaults
* to kick in when we return and before perf_evsel__open() is called.
@ -305,6 +304,8 @@ new_event:
if (evsel == NULL)
goto out;
evsel->precise_max = true;
/* use asprintf() because free(evsel) assumes name is allocated */
if (asprintf(&evsel->name, "cycles%s%s%.*s",
(attr.precise_ip || attr.exclude_kernel) ? ":" : "",
@ -1083,7 +1084,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
}
if (evsel->precise_max)
perf_event_attr__set_max_precise_ip(attr);
attr->precise_ip = 3;
if (opts->all_user) {
attr->exclude_kernel = 1;
@ -1749,6 +1750,59 @@ static bool ignore_missing_thread(struct perf_evsel *evsel,
return true;
}
static void display_attr(struct perf_event_attr *attr)
{
if (verbose >= 2) {
fprintf(stderr, "%.60s\n", graph_dotted_line);
fprintf(stderr, "perf_event_attr:\n");
perf_event_attr__fprintf(stderr, attr, __open_attr__fprintf, NULL);
fprintf(stderr, "%.60s\n", graph_dotted_line);
}
}
static int perf_event_open(struct perf_evsel *evsel,
pid_t pid, int cpu, int group_fd,
unsigned long flags)
{
int precise_ip = evsel->attr.precise_ip;
int fd;
while (1) {
pr_debug2("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx",
pid, cpu, group_fd, flags);
fd = sys_perf_event_open(&evsel->attr, pid, cpu, group_fd, flags);
if (fd >= 0)
break;
/*
* Do quick precise_ip fallback if:
* - there is precise_ip set in perf_event_attr
* - maximum precise is requested
* - sys_perf_event_open failed with ENOTSUP error,
* which is associated with wrong precise_ip
*/
if (!precise_ip || !evsel->precise_max || (errno != ENOTSUP))
break;
/*
* We tried all the precise_ip values, and it's
* still failing, so leave it to standard fallback.
*/
if (!evsel->attr.precise_ip) {
evsel->attr.precise_ip = precise_ip;
break;
}
pr_debug2("\nsys_perf_event_open failed, error %d\n", -ENOTSUP);
evsel->attr.precise_ip--;
pr_debug2("decreasing precise_ip by one (%d)\n", evsel->attr.precise_ip);
display_attr(&evsel->attr);
}
return fd;
}
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
struct thread_map *threads)
{
@ -1824,12 +1878,7 @@ retry_sample_id:
if (perf_missing_features.sample_id_all)
evsel->attr.sample_id_all = 0;
if (verbose >= 2) {
fprintf(stderr, "%.60s\n", graph_dotted_line);
fprintf(stderr, "perf_event_attr:\n");
perf_event_attr__fprintf(stderr, &evsel->attr, __open_attr__fprintf, NULL);
fprintf(stderr, "%.60s\n", graph_dotted_line);
}
display_attr(&evsel->attr);
for (cpu = 0; cpu < cpus->nr; cpu++) {
@ -1841,13 +1890,10 @@ retry_sample_id:
group_fd = get_group_fd(evsel, cpu, thread);
retry_open:
pr_debug2("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx",
pid, cpus->map[cpu], group_fd, flags);
test_attr__ready();
fd = sys_perf_event_open(&evsel->attr, pid, cpus->map[cpu],
group_fd, flags);
fd = perf_event_open(evsel, pid, cpus->map[cpu],
group_fd, flags);
FD(evsel, cpu, thread) = fd;

20
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
View File

@ -251,19 +251,15 @@ struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params)
if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
decoder->tsc_ctc_ratio_d;
/*
* Allow for timestamps appearing to backwards because a TSC
* packet has slipped past a MTC packet, so allow 2 MTC ticks
* or ...
*/
decoder->tsc_slip = multdiv(2 << decoder->mtc_shift,
decoder->tsc_ctc_ratio_n,
decoder->tsc_ctc_ratio_d);
}
/* ... or 0x100 paranoia */
if (decoder->tsc_slip < 0x100)
decoder->tsc_slip = 0x100;
/*
* A TSC packet can slip past MTC packets so that the timestamp appears
* to go backwards. One estimate is that can be up to about 40 CPU
* cycles, which is certainly less than 0x1000 TSC ticks, but accept
* slippage an order of magnitude more to be on the safe side.
*/
decoder->tsc_slip = 0x10000;
intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);

32
tools/perf/util/machine.c
View File

@ -1421,6 +1421,20 @@ static void machine__set_kernel_mmap(struct machine *machine,
machine->vmlinux_map->end = ~0ULL;
}
static void machine__update_kernel_mmap(struct machine *machine,
u64 start, u64 end)
{
struct map *map = machine__kernel_map(machine);
map__get(map);
map_groups__remove(&machine->kmaps, map);
machine__set_kernel_mmap(machine, start, end);
map_groups__insert(&machine->kmaps, map);
map__put(map);
}
int machine__create_kernel_maps(struct machine *machine)
{
struct dso *kernel = machine__get_kernel(machine);
@ -1453,17 +1467,11 @@ int machine__create_kernel_maps(struct machine *machine)
goto out_put;
}
/* we have a real start address now, so re-order the kmaps */
map = machine__kernel_map(machine);
map__get(map);
map_groups__remove(&machine->kmaps, map);
/* assume it's the last in the kmaps */
machine__set_kernel_mmap(machine, addr, ~0ULL);
map_groups__insert(&machine->kmaps, map);
map__put(map);
/*
* we have a real start address now, so re-order the kmaps
* assume it's the last in the kmaps
*/
machine__update_kernel_mmap(machine, addr, ~0ULL);
}
if (machine__create_extra_kernel_maps(machine, kernel))
@ -1599,7 +1607,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
if (strstr(kernel->long_name, "vmlinux"))
dso__set_short_name(kernel, "[kernel.vmlinux]", false);
machine__set_kernel_mmap(machine, event->mmap.start,
machine__update_kernel_mmap(machine, event->mmap.start,
event->mmap.start + event->mmap.len);
/*

10
tools/perf/util/pmu.c
View File

@ -732,10 +732,20 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
if (!is_arm_pmu_core(name)) {
pname = pe->pmu ? pe->pmu : "cpu";
/*
* uncore alias may be from different PMU
* with common prefix
*/
if (pmu_is_uncore(name) &&
!strncmp(pname, name, strlen(pname)))
goto new_alias;
if (strcmp(pname, name))
continue;
}
new_alias:
/* need type casts to override 'const' */
__perf_pmu__new_alias(head, NULL, (char *)pe->name,
(char *)pe->desc, (char *)pe->event,