33607 Commits

Author SHA1 Message Date
Peter Zijlstra
8b2de41215 objtool: Shrink instruction::{type,visited}
Since we don't have that many types in enum insn_type, force it into a
u8 and re-arrange member to get rid of the holes, saves another 8
bytes.

 struct instruction {
 	struct list_head           list;                 /*     0    16 */
 	struct hlist_node          hash;                 /*    16    16 */
 	struct list_head           call_node;            /*    32    16 */
 	struct section *           sec;                  /*    48     8 */
 	long unsigned int          offset;               /*    56     8 */
 	/* --- cacheline 1 boundary (64 bytes) --- */
-	unsigned int               len;                  /*    64     4 */
-	enum insn_type             type;                 /*    68     4 */
-	long unsigned int          immediate;            /*    72     8 */
-	u16                        dead_end:1;           /*    80: 0  2 */
-	u16                        ignore:1;             /*    80: 1  2 */
-	u16                        ignore_alts:1;        /*    80: 2  2 */
-	u16                        hint:1;               /*    80: 3  2 */
-	u16                        save:1;               /*    80: 4  2 */
-	u16                        restore:1;            /*    80: 5  2 */
-	u16                        retpoline_safe:1;     /*    80: 6  2 */
-	u16                        noendbr:1;            /*    80: 7  2 */
-	u16                        entry:1;              /*    80: 8  2 */
+	long unsigned int          immediate;            /*    64     8 */
+	unsigned int               len;                  /*    72     4 */
+	u8                         type;                 /*    76     1 */

-	/* XXX 7 bits hole, try to pack */
+	/* Bitfield combined with previous fields */

-	s8                         instr;                /*    82     1 */
-	u8                         visited;              /*    83     1 */
+	u16                        dead_end:1;           /*    76: 8  2 */
+	u16                        ignore:1;             /*    76: 9  2 */
+	u16                        ignore_alts:1;        /*    76:10  2 */
+	u16                        hint:1;               /*    76:11  2 */
+	u16                        save:1;               /*    76:12  2 */
+	u16                        restore:1;            /*    76:13  2 */
+	u16                        retpoline_safe:1;     /*    76:14  2 */
+	u16                        noendbr:1;            /*    76:15  2 */
+	u16                        entry:1;              /*    78: 0  2 */
+	u16                        visited:4;            /*    78: 1  2 */

-	/* XXX 4 bytes hole, try to pack */
+	/* XXX 3 bits hole, try to pack */
+	/* Bitfield combined with next fields */

-	struct alt_group *         alt_group;            /*    88     8 */
-	struct symbol *            call_dest;            /*    96     8 */
-	struct instruction *       jump_dest;            /*   104     8 */
-	struct instruction *       first_jump_src;       /*   112     8 */
-	struct reloc *             jump_table;           /*   120     8 */
+	s8                         instr;                /*    79     1 */
+	struct alt_group *         alt_group;            /*    80     8 */
+	struct symbol *            call_dest;            /*    88     8 */
+	struct instruction *       jump_dest;            /*    96     8 */
+	struct instruction *       first_jump_src;       /*   104     8 */
+	struct reloc *             jump_table;           /*   112     8 */
+	struct reloc *             reloc;                /*   120     8 */
 	/* --- cacheline 2 boundary (128 bytes) --- */
-	struct reloc *             reloc;                /*   128     8 */
-	struct alternative *       alts;                 /*   136     8 */
-	struct symbol *            sym;                  /*   144     8 */
-	struct stack_op *          stack_ops;            /*   152     8 */
-	struct cfi_state *         cfi;                  /*   160     8 */
+	struct alternative *       alts;                 /*   128     8 */
+	struct symbol *            sym;                  /*   136     8 */
+	struct stack_op *          stack_ops;            /*   144     8 */
+	struct cfi_state *         cfi;                  /*   152     8 */

-	/* size: 168, cachelines: 3, members: 29 */
-	/* sum members: 162, holes: 1, sum holes: 4 */
-	/* sum bitfield members: 9 bits, bit holes: 1, sum bit holes: 7 bits */
-	/* last cacheline: 40 bytes */
+	/* size: 160, cachelines: 3, members: 29 */
+	/* sum members: 158 */
+	/* sum bitfield members: 13 bits, bit holes: 1, sum bit holes: 3 bits */
+	/* last cacheline: 32 bytes */
 };

pre:	5:48.86 real,   220.30 user,    128.34 sys,     24834672 mem
post:	5:48.89 real,   220.96 user,    127.55 sys,     24834672 mem

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build only
Tested-by: Thomas Weißschuh <linux@weissschuh.net> # compile and run
Link: https://lore.kernel.org/r/20230208172245.501847188@infradead.org
2023-02-23 09:21:12 +01:00
Peter Zijlstra
d540665461 objtool: Make instruction::alts a single-linked list
struct instruction {
 	struct list_head           list;                 /*     0    16 */
 	struct hlist_node          hash;                 /*    16    16 */
 	struct list_head           call_node;            /*    32    16 */
 	struct section *           sec;                  /*    48     8 */
 	long unsigned int          offset;               /*    56     8 */
 	/* --- cacheline 1 boundary (64 bytes) --- */
 	unsigned int               len;                  /*    64     4 */
 	enum insn_type             type;                 /*    68     4 */
 	long unsigned int          immediate;            /*    72     8 */
 	u16                        dead_end:1;           /*    80: 0  2 */
 	u16                        ignore:1;             /*    80: 1  2 */
 	u16                        ignore_alts:1;        /*    80: 2  2 */
 	u16                        hint:1;               /*    80: 3  2 */
 	u16                        save:1;               /*    80: 4  2 */
 	u16                        restore:1;            /*    80: 5  2 */
 	u16                        retpoline_safe:1;     /*    80: 6  2 */
 	u16                        noendbr:1;            /*    80: 7  2 */
 	u16                        entry:1;              /*    80: 8  2 */

 	/* XXX 7 bits hole, try to pack */

 	s8                         instr;                /*    82     1 */
 	u8                         visited;              /*    83     1 */

 	/* XXX 4 bytes hole, try to pack */

 	struct alt_group *         alt_group;            /*    88     8 */
 	struct symbol *            call_dest;            /*    96     8 */
 	struct instruction *       jump_dest;            /*   104     8 */
 	struct instruction *       first_jump_src;       /*   112     8 */
 	struct reloc *             jump_table;           /*   120     8 */
 	/* --- cacheline 2 boundary (128 bytes) --- */
 	struct reloc *             reloc;                /*   128     8 */
-	struct list_head           alts;                 /*   136    16 */
-	struct symbol *            sym;                  /*   152     8 */
-	struct stack_op *          stack_ops;            /*   160     8 */
-	struct cfi_state *         cfi;                  /*   168     8 */
+	struct alternative *       alts;                 /*   136     8 */
+	struct symbol *            sym;                  /*   144     8 */
+	struct stack_op *          stack_ops;            /*   152     8 */
+	struct cfi_state *         cfi;                  /*   160     8 */

-	/* size: 176, cachelines: 3, members: 29 */
-	/* sum members: 170, holes: 1, sum holes: 4 */
+	/* size: 168, cachelines: 3, members: 29 */
+	/* sum members: 162, holes: 1, sum holes: 4 */
 	/* sum bitfield members: 9 bits, bit holes: 1, sum bit holes: 7 bits */
-	/* last cacheline: 48 bytes */
+	/* last cacheline: 40 bytes */
 };

pre:	5:58.50 real,   229.64 user,    128.65 sys,     26221520 mem
post:	5:48.86 real,   220.30 user,    128.34 sys,     24834672 mem

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build only
Tested-by: Thomas Weißschuh <linux@weissschuh.net> # compile and run
Link: https://lore.kernel.org/r/20230208172245.430556498@infradead.org
2023-02-23 09:21:06 +01:00
Peter Zijlstra
3ee88df1b0 objtool: Make instruction::stack_ops a single-linked list
struct instruction {
 	struct list_head           list;                 /*     0    16 */
 	struct hlist_node          hash;                 /*    16    16 */
 	struct list_head           call_node;            /*    32    16 */
 	struct section *           sec;                  /*    48     8 */
 	long unsigned int          offset;               /*    56     8 */
 	/* --- cacheline 1 boundary (64 bytes) --- */
 	unsigned int               len;                  /*    64     4 */
 	enum insn_type             type;                 /*    68     4 */
 	long unsigned int          immediate;            /*    72     8 */
 	u16                        dead_end:1;           /*    80: 0  2 */
 	u16                        ignore:1;             /*    80: 1  2 */
 	u16                        ignore_alts:1;        /*    80: 2  2 */
 	u16                        hint:1;               /*    80: 3  2 */
 	u16                        save:1;               /*    80: 4  2 */
 	u16                        restore:1;            /*    80: 5  2 */
 	u16                        retpoline_safe:1;     /*    80: 6  2 */
 	u16                        noendbr:1;            /*    80: 7  2 */
 	u16                        entry:1;              /*    80: 8  2 */

 	/* XXX 7 bits hole, try to pack */

 	s8                         instr;                /*    82     1 */
 	u8                         visited;              /*    83     1 */

 	/* XXX 4 bytes hole, try to pack */

 	struct alt_group *         alt_group;            /*    88     8 */
 	struct symbol *            call_dest;            /*    96     8 */
 	struct instruction *       jump_dest;            /*   104     8 */
 	struct instruction *       first_jump_src;       /*   112     8 */
 	struct reloc *             jump_table;           /*   120     8 */
 	/* --- cacheline 2 boundary (128 bytes) --- */
 	struct reloc *             reloc;                /*   128     8 */
 	struct list_head           alts;                 /*   136    16 */
 	struct symbol *            sym;                  /*   152     8 */
-	struct list_head           stack_ops;            /*   160    16 */
-	struct cfi_state *         cfi;                  /*   176     8 */
+	struct stack_op *          stack_ops;            /*   160     8 */
+	struct cfi_state *         cfi;                  /*   168     8 */

-	/* size: 184, cachelines: 3, members: 29 */
-	/* sum members: 178, holes: 1, sum holes: 4 */
+	/* size: 176, cachelines: 3, members: 29 */
+	/* sum members: 170, holes: 1, sum holes: 4 */
 	/* sum bitfield members: 9 bits, bit holes: 1, sum bit holes: 7 bits */
-	/* last cacheline: 56 bytes */
+	/* last cacheline: 48 bytes */
 };

pre:	5:58.22 real,   226.69 user,    131.22 sys,     26221520 mem
post:	5:58.50 real,   229.64 user,    128.65 sys,     26221520 mem

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build only
Tested-by: Thomas Weißschuh <linux@weissschuh.net> # compile and run
Link: https://lore.kernel.org/r/20230208172245.362196959@infradead.org
2023-02-23 09:20:59 +01:00
Peter Zijlstra
20a554638d objtool: Change arch_decode_instruction() signature
In preparation to changing struct instruction around a bit, avoid
passing it's members by pointer and instead pass the whole thing.

A cleanup in it's own right too.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build only
Tested-by: Thomas Weißschuh <linux@weissschuh.net> # compile and run
Link: https://lore.kernel.org/r/20230208172245.291087549@infradead.org
2023-02-23 09:20:50 +01:00
Ingo Molnar
585a78c1f7 Merge branch 'linus' into objtool/core, to pick up Xen dependencies
Pick up dependencies - freshly merged upstream via xen-next - before applying
dependent objtool changes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2023-02-23 09:16:39 +01:00
Linus Torvalds
69308402ca platform-drivers-x86 for v6.3-1
Highlights:
  -  AMD PMC: Improvements to aid s2idle debugging
  -  Dell WMI-DDV: hwmon support
  -  INT3472 camera sensor power-management: Improve privacy LED support
  -  Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule Interface) support
  -  Mellanox: SN5600 and Nvidia L1 switch support
  -  Microsoft Surface Support: Various cleanups + code improvements
  -  tools/intel-speed-select: Various improvements
  -  Miscellaneous other cleanups / fixes
 
 The following is an automated git shortlog grouped by driver:
 
 Add include/linux/platform_data/x86 to MAINTAINERS:
  -  Add include/linux/platform_data/x86 to MAINTAINERS
 
 Documentation/ABI:
  -  Add new attribute for mlxreg-io sysfs interfaces
 
 Fix header inclusion in linux/platform_data/x86/soc.h:
  -  Fix header inclusion in linux/platform_data/x86/soc.h
 
 HID:
  -  surface-hid: Use target-ID enum instead of hard-coding values
 
 MAINTAINERS:
  -  dell-wmi-sysman: drop Divya Bharathi
  -  Add entry for TPMI driver
 
 Merge tag 'ib-leds-led_get-v6.3' into HEAD:
  - Merge tag 'ib-leds-led_get-v6.3' into HEAD
 
 acerhdf:
  -  Drop empty platform remove function
 
 apple_gmux:
  -  Drop no longer used ACPI_VIDEO Kconfig dependency
 
 dell-ddv:
  -  Prefer asynchronous probing
  -  Add hwmon support
  -  Add "force" module param
  -  Replace EIO with ENOMSG
  -  Return error if buffer is empty
  -  Add support for interface version 3
 
 dell-smo8800:
  -  Use min_t() for comparison and assignment
 
 dell-wmi-sysman:
  -  Make kobj_type structure constant
 
 hp-wmi:
  -  Ignore Win-Lock key events
 
 int1092:
  -  Switch to use acpi_evaluate_dsm_typed()
 
 int3472/discrete:
  -  add LEDS_CLASS dependency
  -  Drop unnecessary obj->type == string check
  -  Get the polarity from the _DSM entry
  -  Move GPIO request to skl_int3472_register_clock()
  -  Create a LED class device for the privacy LED
  -  Refactor GPIO to sensor mapping
 
 intel:
  -  punit_ipc: Drop empty platform remove function
  -  oaktrail: Drop empty platform remove function
 
 intel/pmc:
  -  Switch to use acpi_evaluate_dsm_typed()
 
 leds:
  -  led-class: Add generic [devm_]led_get()
  -  led-class: Add __devm_led_get() helper
  -  led-class: Add led_module_get() helper
  -  led-class: Add missing put_device() to led_put()
 
 media:
  -  v4l2-core: Make the v4l2-core code enable/disable the privacy LED if present
 
 nvidia-wmi-ec-backlight:
  -  Add force module parameter
 
 platform:
  -  mellanox: mlx-platform: Move bus shift assignment out of the loop
  -  mellanox: mlx-platform: Add mux selection register to regmap
  -  mellanox: Extend all systems with I2C notification callback
  -  mellanox: Split logic in init and exit flow
  -  mellanox: Split initialization procedure
  -  mellanox: Introduce support of new Nvidia L1 switch
  -  mellanox: Introduce support for next-generation 800GB/s switch
  -  mellanox: Cosmetic changes - rename to more common name
  -  mellanox: Change "reset_pwr_converter_fail" attribute
  -  mellanox: Introduce support for rack manager switch
 
 platform/mellanox:
  -  mlxreg-hotplug: Allow more flexible hotplug events configuration
 
 platform/surface:
  -  Switch to use acpi_evaluate_dsm_typed()
  -  aggregator: Rename top-level request functions to avoid ambiguities
  -  aggregator_registry: Fix target-ID of base-hub
  -  aggregator: Enforce use of target-ID enum in device ID macros
  -  dtx: Use target-ID enum instead of hard-coding values
  -  aggregator_tabletsw: Use target-ID enum instead of hard-coding values
  -  aggregator_hub: Use target-ID enum instead of hard-coding values
  -  aggregator: Add target and source IDs to command trace events
  -  aggregator: Improve documentation and handling of message target and source IDs
 
 platform/x86/amd:
  -  pmc: Add line break for readability
  -  pmc: differentiate STB/SMU messaging prints
  -  pmc: Write dummy postcode into the STB DRAM
  -  pmc: Add num_samples message id support to STB
 
 platform/x86/amd/pmf:
  -  Add depends on CONFIG_POWER_SUPPLY
 
 platform/x86/intel:
  -  Intel TPMI enumeration driver
 
 platform/x86/intel/tpmi:
  -  ADD tpmi external interface for tpmi feature drivers
  -  Process CPU package mapping
 
 platform/x86/intel/vsec:
  -  Use mutex for ida_alloc() and ida_free()
  -  Support private data
  -  Enhance and Export intel_vsec_add_aux()
  -  Add TPMI ID
 
 platform_data/mlxreg:
  -  Add field with mapped resource address
 
 think-lmi:
  -  Make kobj_type structure constant
  -  Use min_t() for comparison and assignment
 
 tools/power/x86/intel-speed-select:
  -  v1.14 release
  -  Adjust uncore max/min frequency
  -  Add Emerald Rapid quirk
  -  Fix display of uncore min frequency
  -  turbo-freq auto mode with SMT off
  -  cpufreq reads on offline CPUs
  -  Use null-terminated string
  -  Remove duplicate dup()
  -  Handle open() failure case
  -  Remove unused non_block flag
  -  Remove wrong check in set_isst_id()
 
 x86/platform/uv:
  -  Make kobj_type structure constant
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Merge tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - AMD PMC: Improvements to aid s2idle debugging

 - Dell WMI-DDV: hwmon support

 - INT3472 camera sensor power-management: Improve privacy LED support

 - Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule
   Interface) support

 - Mellanox: SN5600 and Nvidia L1 switch support

 - Microsoft Surface Support: Various cleanups + code improvements

 - tools/intel-speed-select: Various improvements

 - Miscellaneous other cleanups / fixes

* tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
  platform/x86: nvidia-wmi-ec-backlight: Add force module parameter
  platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY
  platform/x86: dell-ddv: Prefer asynchronous probing
  platform/x86: dell-ddv: Add hwmon support
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform: mellanox: mlx-platform: Move bus shift assignment out of the loop
  platform: mellanox: mlx-platform: Add mux selection register to regmap
  platform_data/mlxreg: Add field with mapped resource address
  platform/mellanox: mlxreg-hotplug: Allow more flexible hotplug events configuration
  platform: mellanox: Extend all systems with I2C notification callback
  platform: mellanox: Split logic in init and exit flow
  platform: mellanox: Split initialization procedure
  platform: mellanox: Introduce support of new Nvidia L1 switch
  platform: mellanox: Introduce support for next-generation 800GB/s switch
  platform: mellanox: Cosmetic changes - rename to more common name
  platform: mellanox: Change "reset_pwr_converter_fail" attribute
  platform: mellanox: Introduce support for rack manager switch
  MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi
  x86/platform/uv: Make kobj_type structure constant
  platform/x86: think-lmi: Make kobj_type structure constant
  ...
2023-02-21 17:32:50 -08:00
Linus Torvalds
239451e903 xen: branch for v6.3-rc1
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Merge tag 'for-linus-6.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - help deprecate the /proc/xen files by making the related information
   available via sysfs

 - mark the Xen variants of play_dead "noreturn"

 - support a shared Xen platform interrupt

 - several small cleanups and fixes

* tag 'for-linus-6.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: sysfs: make kobj_type structure constant
  x86/Xen: drop leftover VM-assist uses
  xen: Replace one-element array with flexible-array member
  xen/grant-dma-iommu: Implement a dummy probe_device() callback
  xen/pvcalls-back: fix permanently masked event channel
  xen: Allow platform PCI interrupt to be shared
  x86/xen/time: prefer tsc as clocksource when it is invariant
  x86/xen: mark xen_pv_play_dead() as __noreturn
  x86/xen: don't let xen_pv_play_dead() return
  drivers/xen/hypervisor: Expose Xen SIF flags to userspace
2023-02-21 17:07:39 -08:00
Linus Torvalds
8bf1a529cd arm64 updates for 6.3:
- Support for arm64 SME 2 and 2.1. SME2 introduces a new 512-bit
   architectural register (ZT0, for the look-up table feature) that Linux
   needs to save/restore.
 
 - Include TPIDR2 in the signal context and add the corresponding
   kselftests.
 
 - Perf updates: Arm SPEv1.2 support, HiSilicon uncore PMU updates, ACPI
   support to the Marvell DDR and TAD PMU drivers, reset DTM_PMU_CONFIG
   (ARM CMN) at probe time.
 
 - Support for DYNAMIC_FTRACE_WITH_CALL_OPS on arm64.
 
 - Permit EFI boot with MMU and caches on. Instead of cleaning the entire
   loaded kernel image to the PoC and disabling the MMU and caches before
   branching to the kernel bare metal entry point, leave the MMU and
   caches enabled and rely on EFI's cacheable 1:1 mapping of all of
   system RAM to populate the initial page tables.
 
 - Expose the AArch32 (compat) ELF_HWCAP features to user in an arm64
   kernel (the arm32 kernel only defines the values).
 
 - Harden the arm64 shadow call stack pointer handling: stash the shadow
   stack pointer in the task struct on interrupt, load it directly from
   this structure.
 
 - Signal handling cleanups to remove redundant validation of size
   information and avoid reading the same data from userspace twice.
 
 - Refactor the hwcap macros to make use of the automatically generated
   ID registers. It should make new hwcaps writing less error prone.
 
 - Further arm64 sysreg conversion and some fixes.
 
 - arm64 kselftest fixes and improvements.
 
 - Pointer authentication cleanups: don't sign leaf functions, unify
   asm-arch manipulation.
 
 - Pseudo-NMI code generation optimisations.
 
 - Minor fixes for SME and TPIDR2 handling.
 
 - Miscellaneous updates: ARCH_FORCE_MAX_ORDER is now selectable, replace
   strtobool() to kstrtobool() in the cpufeature.c code, apply dynamic
   shadow call stack in two passes, intercept pfn changes in set_pte_at()
   without the required break-before-make sequence, attempt to dump all
   instructions on unhandled kernel faults.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:

 - Support for arm64 SME 2 and 2.1. SME2 introduces a new 512-bit
   architectural register (ZT0, for the look-up table feature) that
   Linux needs to save/restore

 - Include TPIDR2 in the signal context and add the corresponding
   kselftests

 - Perf updates: Arm SPEv1.2 support, HiSilicon uncore PMU updates, ACPI
   support to the Marvell DDR and TAD PMU drivers, reset DTM_PMU_CONFIG
   (ARM CMN) at probe time

 - Support for DYNAMIC_FTRACE_WITH_CALL_OPS on arm64

 - Permit EFI boot with MMU and caches on. Instead of cleaning the
   entire loaded kernel image to the PoC and disabling the MMU and
   caches before branching to the kernel bare metal entry point, leave
   the MMU and caches enabled and rely on EFI's cacheable 1:1 mapping of
   all of system RAM to populate the initial page tables

 - Expose the AArch32 (compat) ELF_HWCAP features to user in an arm64
   kernel (the arm32 kernel only defines the values)

 - Harden the arm64 shadow call stack pointer handling: stash the shadow
   stack pointer in the task struct on interrupt, load it directly from
   this structure

 - Signal handling cleanups to remove redundant validation of size
   information and avoid reading the same data from userspace twice

 - Refactor the hwcap macros to make use of the automatically generated
   ID registers. It should make new hwcaps writing less error prone

 - Further arm64 sysreg conversion and some fixes

 - arm64 kselftest fixes and improvements

 - Pointer authentication cleanups: don't sign leaf functions, unify
   asm-arch manipulation

 - Pseudo-NMI code generation optimisations

 - Minor fixes for SME and TPIDR2 handling

 - Miscellaneous updates: ARCH_FORCE_MAX_ORDER is now selectable,
   replace strtobool() to kstrtobool() in the cpufeature.c code, apply
   dynamic shadow call stack in two passes, intercept pfn changes in
   set_pte_at() without the required break-before-make sequence, attempt
   to dump all instructions on unhandled kernel faults

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (130 commits)
  arm64: fix .idmap.text assertion for large kernels
  kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests
  kselftest/arm64: Copy whole EXTRA context
  arm64: kprobes: Drop ID map text from kprobes blacklist
  perf: arm_spe: Print the version of SPE detected
  perf: arm_spe: Add support for SPEv1.2 inverted event filtering
  perf: Add perf_event_attr::config3
  arm64/sme: Fix __finalise_el2 SMEver check
  drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable
  arm64/signal: Only read new data when parsing the ZT context
  arm64/signal: Only read new data when parsing the ZA context
  arm64/signal: Only read new data when parsing the SVE context
  arm64/signal: Avoid rereading context frame sizes
  arm64/signal: Make interface for restore_fpsimd_context() consistent
  arm64/signal: Remove redundant size validation from parse_user_sigframe()
  arm64/signal: Don't redundantly verify FPSIMD magic
  arm64/cpufeature: Use helper macros to specify hwcaps
  arm64/cpufeature: Always use symbolic name for feature value in hwcaps
  arm64/sysreg: Initial unsigned annotations for ID registers
  arm64/sysreg: Initial annotation of signed ID registers
  ...
2023-02-21 15:27:48 -08:00
Linus Torvalds
eb6d5bbea2 m68k updates for v6.3
- Add seccomp support,
   - Defconfig updates,
   - Miscellaneous fixes and improvements.
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Merge tag 'm68k-for-v6.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Add seccomp support

 - defconfig updates

 - Miscellaneous fixes and improvements

* tag 'm68k-for-v6.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: /proc/hardware should depend on PROC_FS
  selftests/seccomp: Add m68k support
  m68k: Add kernel seccomp support
  m68k: Check syscall_trace_enter() return code
  m68k: defconfig: Update defconfigs for v6.2-rc3
  m68k: q40: Do not initialise statics to 0
2023-02-21 15:17:34 -08:00
Linus Torvalds
877934769e - Cache the AMD debug registers in per-CPU variables to avoid MSR writes
where possible, when supporting a debug registers swap feature for
   SEV-ES guests
 
 - Add support for AMD's version of eIBRS called Automatic IBRS which is
   a set-and-forget control of indirect branch restriction speculation
   resources on privilege change
 
 - Add support for a new x86 instruction - LKGS - Load kernel GS which is
   part of the FRED infrastructure
 
 - Reset SPEC_CTRL upon init to accomodate use cases like kexec which
   rediscover
 
 - Other smaller fixes and cleanups
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Merge tag 'x86_cpu_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpuid updates from Borislav Petkov:

 - Cache the AMD debug registers in per-CPU variables to avoid MSR
   writes where possible, when supporting a debug registers swap feature
   for SEV-ES guests

 - Add support for AMD's version of eIBRS called Automatic IBRS which is
   a set-and-forget control of indirect branch restriction speculation
   resources on privilege change

 - Add support for a new x86 instruction - LKGS - Load kernel GS which
   is part of the FRED infrastructure

 - Reset SPEC_CTRL upon init to accomodate use cases like kexec which
   rediscover

 - Other smaller fixes and cleanups

* tag 'x86_cpu_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/amd: Cache debug register values in percpu variables
  KVM: x86: Propagate the AMD Automatic IBRS feature to the guest
  x86/cpu: Support AMD Automatic IBRS
  x86/cpu, kvm: Add the SMM_CTL MSR not present feature
  x86/cpu, kvm: Add the Null Selector Clears Base feature
  x86/cpu, kvm: Move X86_FEATURE_LFENCE_RDTSC to its native leaf
  x86/cpu, kvm: Add the NO_NESTED_DATA_BP feature
  KVM: x86: Move open-coded CPUID leaf 0x80000021 EAX bit propagation code
  x86/cpu, kvm: Add support for CPUID_80000021_EAX
  x86/gsseg: Add the new <asm/gsseg.h> header to <asm/asm-prototypes.h>
  x86/gsseg: Use the LKGS instruction if available for load_gs_index()
  x86/gsseg: Move load_gs_index() to its own new header file
  x86/gsseg: Make asm_load_gs_index() take an u16
  x86/opcode: Add the LKGS instruction to x86-opcode-map
  x86/cpufeature: Add the CPU feature bit for LKGS
  x86/bugs: Reset speculation control settings on init
  x86/cpu: Remove redundant extern x86_read_arch_cap_msr()
2023-02-21 14:51:40 -08:00
Linus Torvalds
1b72607d73 Thermal control updates for 6.3-rc1
- Rework a large bunch of drivers to use the generic thermal trip
    structure and use the opportunity to do more cleanups by removing
    unused functions from the OF code (Daniel Lezcano).
 
  - Remove core header inclusion from drivers (Daniel Lezcano).
 
  - Fix some locking issues related to the generic thermal trip rework
    (Johan Hovold).
 
  - Fix a crash when requesting the critical temperature on tegra, which
    is related to the generic trip point work (Jon Hunter).
 
  - Clean up thermal device unregistration code (Viresh Kumar).
 
  - Fix and clean up thermal control core initialization error code
    paths (Daniel Lezcano).
 
  - Relocate the trip points handling code into a separate file (Daniel
    Lezcano).
 
  - Make the thermal core fail registration of thermal zones and cooling
    devices if the thermal class has not been registered (Rafael Wysocki).
 
  - Add trip point initialization helper functions for ACPI-defined trip
    points and modify two thermal drivers to use them (Rafael Wysocki,
    Daniel Lezcano).
 
  - Make the core thermal control code use sysfs_emit_at() instead of
    scnprintf() where applicable (ye xingchen).
 
  - Consolidate code accessing the Intel TCC (Thermal Control Circuitry)
    MSRs by introducing library functions for that and making the
    TCC-related code in thermal drivers use them (Zhang Rui).
 
  - Enhance the x86_pkg_temp_thermal driver to support dynamic tjmax
    changes (Zhang Rui).
 
  - Address an "unsigned expression compared with zero" warning in the
    intel_soc_dts_iosf thermal driver (Yang Li).
 
  - Update comments regarding two functions in the Intel Menlow thermal
    driver (Deming Wang).
 
  - Use sysfs_emit_at() instead of scnprintf() in the int340x thermal
    driver (ye xingchen).
 
  - Make the intel_pch thermal driver support the Wellsburg PCH (Tim
    Zimmermann).
 
  - Modify the intel_pch and processor_thermal_device_pci thermal drivers
    use generic trip point tables instead of thermal zone trip point
    callbacks (Daniel Lezcano).
 
  - Add production mode attribute sysfs attribute to the int340x thermal
    driver (Srinivas Pandruvada).
 
  - Rework dynamic trip point updates handling and locking in the int340x
    thermal driver (Rafael Wysocki).
 
  - Make the int340x thermal driver use a generic trip points table
    instead of thermal zone trip point callbacks (Rafael Wysocki, Daniel
    Lezcano).
 
  - Clean up and improve the int340x thermal driver (Rafael Wysocki).
 
  - Simplify and clean up the intel_pch thermal driver (Rafael Wysocki).
 
  - Fix the Intel powerclamp thermal driver and make it use the common
    idle injection framework (Srinivas Pandruvada).
 
  - Add two module parameters, cpumask and max_idle, to the Intel powerclamp
    thermal driver to allow it to affect only a specific subset of CPUs
    instead of all of them (Srinivas Pandruvada).
 
  - Make the Intel quark_dts thermal driver Use generic trip point
    objects instead of its own trip point representation (Daniel
    Lezcano).
 
  - Add toctree entry for thermal documents and fix two issues in the
    Intel powerclamp driver documentation (Bagas Sanjaya).
 
  - Use strscpy() to instead of strncpy() in the thermal core (Xu Panda).
 
  - Fix thermal_sampling_exit() (Vincent Guittot).
 
  - Add Mediatek Low Voltage Thermal Sensor (LVTS) driver (Balsam Chihi).
 
  - Add r8a779g0 RCar support to the rcar_gen3 thermal driver (Geert
    Uytterhoeven).
 
  - Fix useless call to set_trips() when resuming in the rcar_gen3
    thermal control driver and add interrupt support detection at init
    time to it (Niklas Söderlund).
 
  - Fix memory corruption in the hi3660 thermal driver (Yongqin Liu).
 
  - Fix include path for libnl3 in pkg-config file for libthermal (Vibhav
    Pant).
 
  - Remove syscfg-based driver for st as the platform is not supported
    any more (Alain Volmat).
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Merge tag 'thermal-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "The majority of changes here are related to the general switch-over to
  using arrays of generic trip point structures registered along with a
  thermal zone instead of trip point callbacks (this has been done
  mostly by Daniel Lezcano with some help from yours truly on the Intel
  drivers front).

  Apart from that and the related reorganization of code, there are some
  enhancements of the existing driver and a new Mediatek Low Voltage
  Thermal Sensor (LVTS) driver. The Intel powerclamp undergoes a major
  rework so it will use the generic idle_inject facility for CPU idle
  time injection going forward and it will take additional module
  parameters for specifying the subset of CPUs to be affected by it
  (work done by Srinivas Pandruvada).

  Also included are assorted fixes and a whole bunch of cleanups.

  Specifics:

   - Rework a large bunch of drivers to use the generic thermal trip
     structure and use the opportunity to do more cleanups by removing
     unused functions from the OF code (Daniel Lezcano)

   - Remove core header inclusion from drivers (Daniel Lezcano)

   - Fix some locking issues related to the generic thermal trip rework
     (Johan Hovold)

   - Fix a crash when requesting the critical temperature on tegra,
     which is related to the generic trip point work (Jon Hunter)

   - Clean up thermal device unregistration code (Viresh Kumar)

   - Fix and clean up thermal control core initialization error code
     paths (Daniel Lezcano)

   - Relocate the trip points handling code into a separate file (Daniel
     Lezcano)

   - Make the thermal core fail registration of thermal zones and
     cooling devices if the thermal class has not been registered
     (Rafael Wysocki)

   - Add trip point initialization helper functions for ACPI-defined
     trip points and modify two thermal drivers to use them (Rafael
     Wysocki, Daniel Lezcano)

   - Make the core thermal control code use sysfs_emit_at() instead of
     scnprintf() where applicable (ye xingchen)

   - Consolidate code accessing the Intel TCC (Thermal Control
     Circuitry) MSRs by introducing library functions for that and
     making the TCC-related code in thermal drivers use them (Zhang Rui)

   - Enhance the x86_pkg_temp_thermal driver to support dynamic tjmax
     changes (Zhang Rui)

   - Address an "unsigned expression compared with zero" warning in the
     intel_soc_dts_iosf thermal driver (Yang Li)

   - Update comments regarding two functions in the Intel Menlow thermal
     driver (Deming Wang)

   - Use sysfs_emit_at() instead of scnprintf() in the int340x thermal
     driver (ye xingchen)

   - Make the intel_pch thermal driver support the Wellsburg PCH (Tim
     Zimmermann)

   - Modify the intel_pch and processor_thermal_device_pci thermal
     drivers use generic trip point tables instead of thermal zone trip
     point callbacks (Daniel Lezcano)

   - Add production mode attribute sysfs attribute to the int340x
     thermal driver (Srinivas Pandruvada)

   - Rework dynamic trip point updates handling and locking in the
     int340x thermal driver (Rafael Wysocki)

   - Make the int340x thermal driver use a generic trip points table
     instead of thermal zone trip point callbacks (Rafael Wysocki,
     Daniel Lezcano)

   - Clean up and improve the int340x thermal driver (Rafael Wysocki)

   - Simplify and clean up the intel_pch thermal driver (Rafael Wysocki)

   - Fix the Intel powerclamp thermal driver and make it use the common
     idle injection framework (Srinivas Pandruvada)

   - Add two module parameters, cpumask and max_idle, to the Intel
     powerclamp thermal driver to allow it to affect only a specific
     subset of CPUs instead of all of them (Srinivas Pandruvada)

   - Make the Intel quark_dts thermal driver Use generic trip point
     objects instead of its own trip point representation (Daniel
     Lezcano)

   - Add toctree entry for thermal documents and fix two issues in the
     Intel powerclamp driver documentation (Bagas Sanjaya)

   - Use strscpy() to instead of strncpy() in the thermal core (Xu
     Panda)

   - Fix thermal_sampling_exit() (Vincent Guittot)

   - Add Mediatek Low Voltage Thermal Sensor (LVTS) driver (Balsam
     Chihi)

   - Add r8a779g0 RCar support to the rcar_gen3 thermal driver (Geert
     Uytterhoeven)

   - Fix useless call to set_trips() when resuming in the rcar_gen3
     thermal control driver and add interrupt support detection at init
     time to it (Niklas Söderlund)

   - Fix memory corruption in the hi3660 thermal driver (Yongqin Liu)

   - Fix include path for libnl3 in pkg-config file for libthermal
     (Vibhav Pant)

   - Remove syscfg-based driver for st as the platform is not supported
     any more (Alain Volmat)"

* tag 'thermal-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (135 commits)
  thermal/drivers/st: Remove syscfg based driver
  thermal: Remove core header inclusion from drivers
  tools/lib/thermal: Fix include path for libnl3 in pkg-config file.
  thermal/drivers/hisi: Drop second sensor hi3660
  thermal/drivers/rcar_gen3_thermal: Fix device initialization
  thermal/drivers/rcar_gen3_thermal: Create device local ops struct
  thermal/drivers/rcar_gen3_thermal: Do not call set_trips() when resuming
  thermal/drivers/rcar_gen3: Add support for R-Car V4H
  dt-bindings: thermal: rcar-gen3-thermal: Add r8a779g0 support
  thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver
  dt-bindings: thermal: mediatek: Add LVTS thermal controllers
  thermal/drivers/mediatek: Relocate driver to mediatek folder
  tools/lib/thermal: Fix thermal_sampling_exit()
  Documentation: powerclamp: Fix numbered lists formatting
  Documentation: powerclamp: Escape wildcard in cpumask description
  Documentation: admin-guide: Add toctree entry for thermal docs
  thermal: intel: powerclamp: Add two module parameters
  Documentation: admin-guide: Move intel_powerclamp documentation
  thermal: core: Use sysfs_emit_at() instead of scnprintf()
  thermal: intel: powerclamp: Fix duration module parameter
  ...
2023-02-21 12:32:05 -08:00
Linus Torvalds
2504ba8b01 Power management updates for 6.3-rc1
- Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
    Karny, Arnd Bergmann, Bagas Sanjaya).
 
  - Drop the custom cpufreq driver for loongson1 that is not necessary
    any more and the corresponding cpufreq platform device (Keguang
    Zhang).
 
  - Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
    entries (Paul E. McKenney).
 
  - Enable thermal cooling for Tegra194 (Yi-Wei Wang).
 
  - Register module device table and add missing compatibles for
    cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
 
  - Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
    (Christian Marangi).
 
  - Make kobj_type structure in the cpufreq core constant (Thomas
    Weißschuh).
 
  - Make cpufreq_unregister_driver() return void (Uwe Kleine-König).
 
  - Make the TEO cpuidle governor check CPU utilization in order to refine
   idle state selection (Kajetan Puchalski).
 
  - Make Kconfig select the haltpoll cpuidle governor when the haltpoll
    cpuidle driver is selected and replace a default_idle() call in that
    driver with arch_cpu_idle() to allow MWAIT to be used (Li RongQing).
 
  - Add Emerald Rapids Xeon support to the intel_idle driver (Artem
    Bityutskiy).
 
  - Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
    avoid randconfig build failures (Arnd Bergmann).
 
  - Make kobj_type structures used in the cpuidle sysfs interface
    constant (Thomas Weißschuh).
 
  - Make the cpuidle driver registration code update microsecond values
    of idle state parameters in accordance with their nanosecond values
    if they are provided (Rafael Wysocki).
 
  - Make the PSCI cpuidle driver prevent topology CPUs from being
    suspended on PREEMPT_RT (Krzysztof Kozlowski).
 
  - Document that pm_runtime_force_suspend() cannot be used with
    DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald).
 
  - Add EXPORT macros for exporting PM functions from drivers (Richard
    Fitzgerald).
 
  - Remove /** from non-kernel-doc comments in hibernation code (Randy
    Dunlap).
 
  - Fix possible name leak in powercap_register_zone() (Yang Yingliang).
 
  - Add Meteor Lake and Emerald Rapids support to the intel_rapl power
    capping driver (Zhang Rui).
 
  - Modify the idle_inject power capping facility to support 100% idle
    injection (Srinivas Pandruvada).
 
  - Fix large time windows handling in the intel_rapl power capping
    driver (Zhang Rui).
 
  - Fix memory leaks with using debugfs_lookup() in the generic PM
    domains and Energy Model code (Greg Kroah-Hartman).
 
  - Add missing 'cache-unified' property in the example for kryo OPP
    bindings (Rob Herring).
 
  - Fix error checking in opp_migrate_dentry() (Qi Zheng).
 
  - Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
    Dybcio).
 
  - Modify some power management utilities to use the canonical ftrace
    path (Ross Zwisler).
 
  - Correct spelling problems for Documentation/power/ as reported by
    codespell (Randy Dunlap).
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Merge tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add EPP support to the AMD P-state cpufreq driver, add support
  for new platforms to the Intel RAPL power capping driver, intel_idle
  and the Qualcomm cpufreq driver, enable thermal cooling for Tegra194,
  drop the custom cpufreq driver for loongson1 that is not necessary any
  more (and the corresponding cpufreq platform device), fix assorted
  issues and clean up code.

  Specifics:

   - Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
     Karny, Arnd Bergmann, Bagas Sanjaya)

   - Drop the custom cpufreq driver for loongson1 that is not necessary
     any more and the corresponding cpufreq platform device (Keguang
     Zhang)

   - Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
     entries (Paul E. McKenney)

   - Enable thermal cooling for Tegra194 (Yi-Wei Wang)

   - Register module device table and add missing compatibles for
     cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss)

   - Various dt binding updates for qcom-cpufreq-nvmem and
     opp-v2-kryo-cpu (Christian Marangi)

   - Make kobj_type structure in the cpufreq core constant (Thomas
     Weißschuh)

   - Make cpufreq_unregister_driver() return void (Uwe Kleine-König)

   - Make the TEO cpuidle governor check CPU utilization in order to
     refine idle state selection (Kajetan Puchalski)

   - Make Kconfig select the haltpoll cpuidle governor when the haltpoll
     cpuidle driver is selected and replace a default_idle() call in
     that driver with arch_cpu_idle() to allow MWAIT to be used (Li
     RongQing)

   - Add Emerald Rapids Xeon support to the intel_idle driver (Artem
     Bityutskiy)

   - Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
     avoid randconfig build failures (Arnd Bergmann)

   - Make kobj_type structures used in the cpuidle sysfs interface
     constant (Thomas Weißschuh)

   - Make the cpuidle driver registration code update microsecond values
     of idle state parameters in accordance with their nanosecond values
     if they are provided (Rafael Wysocki)

   - Make the PSCI cpuidle driver prevent topology CPUs from being
     suspended on PREEMPT_RT (Krzysztof Kozlowski)

   - Document that pm_runtime_force_suspend() cannot be used with
     DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald)

   - Add EXPORT macros for exporting PM functions from drivers (Richard
     Fitzgerald)

   - Remove /** from non-kernel-doc comments in hibernation code (Randy
     Dunlap)

   - Fix possible name leak in powercap_register_zone() (Yang Yingliang)

   - Add Meteor Lake and Emerald Rapids support to the intel_rapl power
     capping driver (Zhang Rui)

   - Modify the idle_inject power capping facility to support 100% idle
     injection (Srinivas Pandruvada)

   - Fix large time windows handling in the intel_rapl power capping
     driver (Zhang Rui)

   - Fix memory leaks with using debugfs_lookup() in the generic PM
     domains and Energy Model code (Greg Kroah-Hartman)

   - Add missing 'cache-unified' property in the example for kryo OPP
     bindings (Rob Herring)

   - Fix error checking in opp_migrate_dentry() (Qi Zheng)

   - Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
     Dybcio)

   - Modify some power management utilities to use the canonical ftrace
     path (Ross Zwisler)

   - Correct spelling problems for Documentation/power/ as reported by
     codespell (Randy Dunlap)"

* tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
  Documentation: amd-pstate: disambiguate user space sections
  cpufreq: amd-pstate: Fix invalid write to MSR_AMD_CPPC_REQ
  dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
  dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
  dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
  PM: Add EXPORT macros for exporting PM functions
  cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
  MIPS: loongson32: Drop obsolete cpufreq platform device
  powercap: intel_rapl: Fix handling for large time window
  cpuidle: driver: Update microsecond values of state parameters as needed
  cpuidle: sysfs: make kobj_type structures constant
  cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies
  PM: EM: fix memory leak with using debugfs_lookup()
  PM: domains: fix memory leak with using debugfs_lookup()
  cpufreq: Make kobj_type structure constant
  cpufreq: davinci: Fix clk use after free
  cpufreq: amd-pstate: avoid uninitialized variable use
  cpufreq: Make cpufreq_unregister_driver() return void
  OPP: fix error checking in opp_migrate_dentry()
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
  ...
2023-02-21 12:13:58 -08:00
Linus Torvalds
8cc01d43f8 RCU pull request for v6.3
This pull request contains the following branches:
 
 doc.2023.01.05a: Documentation updates.
 
 fixes.2023.01.23a: Miscellaneous fixes, perhaps most notably:
 
 o	Throttling callback invocation based on the number of callbacks
 	that are now ready to invoke instead of on the total number
 	of callbacks.
 
 o	Several patches that suppress false-positive boot-time
 	diagnostics, for example, due to lockdep not yet being
 	initialized.
 
 o	Make expedited RCU CPU stall warnings dump stacks of any tasks
 	that are blocking the stalled grace period.  (Normal RCU CPU
 	stall warnings have doen this for mnay years.)
 
 o	Lazy-callback fixes to avoid delays during boot, suspend, and
 	resume.  (Note that lazy callbacks must be explicitly enabled,
 	so this should not (yet) affect production use cases.)
 
 kvfree.2023.01.03a: Cause kfree_rcu() and friends to take advantage of
 	polled grace periods, thus reducing memory footprint by almost
 	two orders of magnitude, admittedly on a microbenchmark.
 	This series also begins the transition from kfree_rcu(p) to
 	kfree_rcu_mightsleep(p).  This transition was motivated by bugs
 	where kfree_rcu(p), which can block, was typed instead of the
 	intended kfree_rcu(p, rh).
 
 srcu.2023.01.03a: SRCU updates, perhaps most notably fixing a bug that
 	causes SRCU to fail when booted on a system with a non-zero boot
 	CPU.  This surprising situation actually happens for kdump kernels
 	on the powerpc architecture.  It also adds an srcu_down_read()
 	and srcu_up_read(), which act like srcu_read_lock() and
 	srcu_read_unlock(), but allow an SRCU read-side critical section
 	to be handed off from one task to another.
 
 srcu-always.2023.02.02a: Cleans up the now-useless SRCU Kconfig option.
 	There are a few more commits that are not yet acked or pulled
 	into maintainer trees, and these will be in a pull request for
 	a later merge window.
 
 tasks.2023.01.03a: RCU-tasks updates, perhaps most notably these fixes:
 
 o	A strange interaction between PID-namespace unshare and the
 	RCU-tasks grace period that results in a low-probability but
 	very real hang.
 
 o	A race between an RCU tasks rude grace period on a single-CPU
 	system and CPU-hotplug addition of the second CPU that can result
 	in a too-short grace period.
 
 o	A race between shrinking RCU tasks down to a single callback list
 	and queuing a new callback to some other CPU, but where that
 	queuing is delayed for more than an RCU grace period.  This can
 	result in that callback being stranded on the non-boot CPU.
 
 torture.2023.01.05a: Torture-test updates and fixes.
 
 torturescript.2023.01.03a: Torture-test scripting updates and fixes.
 
 stall.2023.01.09a: Provide additional RCU CPU stall-warning information
 	in kernels built with CONFIG_RCU_CPU_STALL_CPUTIME=y, and
 	restore the full five-minute timeout limit for expedited RCU
 	CPU stall warnings.
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Merge tag 'rcu.2023.02.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU updates from Paul McKenney:

 - Documentation updates

 - Miscellaneous fixes, perhaps most notably:

      - Throttling callback invocation based on the number of callbacks
        that are now ready to invoke instead of on the total number of
        callbacks

      - Several patches that suppress false-positive boot-time
        diagnostics, for example, due to lockdep not yet being
        initialized

      - Make expedited RCU CPU stall warnings dump stacks of any tasks
        that are blocking the stalled grace period. (Normal RCU CPU
        stall warnings have done this for many years)

      - Lazy-callback fixes to avoid delays during boot, suspend, and
        resume. (Note that lazy callbacks must be explicitly enabled, so
        this should not (yet) affect production use cases)

 - Make kfree_rcu() and friends take advantage of polled grace periods,
   thus reducing memory footprint by almost two orders of magnitude,
   admittedly on a microbenchmark

   This also begins the transition from kfree_rcu(p) to
   kfree_rcu_mightsleep(p). This transition was motivated by bugs where
   kfree_rcu(p), which can block, was typed instead of the intended
   kfree_rcu(p, rh)

 - SRCU updates, perhaps most notably fixing a bug that causes SRCU to
   fail when booted on a system with a non-zero boot CPU. This
   surprising situation actually happens for kdump kernels on the
   powerpc architecture

   This also adds an srcu_down_read() and srcu_up_read(), which act like
   srcu_read_lock() and srcu_read_unlock(), but allow an SRCU read-side
   critical section to be handed off from one task to another

 - Clean up the now-useless SRCU Kconfig option

   There are a few more commits that are not yet acked or pulled into
   maintainer trees, and these will be in a pull request for a later
   merge window

 - RCU-tasks updates, perhaps most notably these fixes:

      - A strange interaction between PID-namespace unshare and the
        RCU-tasks grace period that results in a low-probability but
        very real hang

      - A race between an RCU tasks rude grace period on a single-CPU
        system and CPU-hotplug addition of the second CPU that can
        result in a too-short grace period

      - A race between shrinking RCU tasks down to a single callback
        list and queuing a new callback to some other CPU, but where
        that queuing is delayed for more than an RCU grace period. This
        can result in that callback being stranded on the non-boot CPU

 - Torture-test updates and fixes

 - Torture-test scripting updates and fixes

 - Provide additional RCU CPU stall-warning information in kernels built
   with CONFIG_RCU_CPU_STALL_CPUTIME=y, and restore the full five-minute
   timeout limit for expedited RCU CPU stall warnings

* tag 'rcu.2023.02.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
  rcu/kvfree: Add kvfree_rcu_mightsleep() and kfree_rcu_mightsleep()
  kernel/notifier: Remove CONFIG_SRCU
  init: Remove "select SRCU"
  fs/quota: Remove "select SRCU"
  fs/notify: Remove "select SRCU"
  fs/btrfs: Remove "select SRCU"
  fs: Remove CONFIG_SRCU
  drivers/pci/controller: Remove "select SRCU"
  drivers/net: Remove "select SRCU"
  drivers/md: Remove "select SRCU"
  drivers/hwtracing/stm: Remove "select SRCU"
  drivers/dax: Remove "select SRCU"
  drivers/base: Remove CONFIG_SRCU
  rcu: Disable laziness if lazy-tracking says so
  rcu: Track laziness during boot and suspend
  rcu: Remove redundant call to rcu_boost_kthread_setaffinity()
  rcu: Allow up to five minutes expedited RCU CPU stall-warning timeouts
  rcu: Align the output of RCU CPU stall warning messages
  rcu: Add RCU stall diagnosis information
  sched: Add helper nr_context_switches_cpu()
  ...
2023-02-21 10:45:51 -08:00
Linus Torvalds
3f0b0903fd - Add getcpu support for the 32-bit version of the vDSO
- Some smaller fixes
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Merge tag 'x86_vdso_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 vdso updates from Borislav Petkov:

 - Add getcpu support for the 32-bit version of the vDSO

 - Some smaller fixes

* tag 'x86_vdso_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Fix -Wmissing-prototypes warnings
  x86/vdso: Fake 32bit VDSO build on 64bit compile for vgetcpu
  selftests: Emit a warning if getcpu() is missing on 32bit
  x86/vdso: Provide getcpu for x86-32.
  x86/cpu: Provide the full setup for getcpu() on x86-32
  x86/vdso: Move VDSO image init to vdso2c generated code
2023-02-21 08:54:41 -08:00
Linus Torvalds
1adce1b944 - Teach the static_call patching infrastructure to handle conditional
tall calls properly which can be static calls too
 
 - Add proper struct alt_instr.flags which controls different aspects of
   insn patching behavior
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Merge tag 'x86_alternatives_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 asm alternatives updates from Borislav Petkov:

 - Teach the static_call patching infrastructure to handle conditional
   tall calls properly which can be static calls too

 - Add proper struct alt_instr.flags which controls different aspects of
   insn patching behavior

* tag 'x86_alternatives_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/static_call: Add support for Jcc tail-calls
  x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions
  x86/alternatives: Introduce int3_emulate_jcc()
  x86/alternatives: Add alt_instr.flags
2023-02-21 08:27:47 -08:00
Linus Torvalds
1f2d9ffc7a Scheduler updates in this cycle are:
- Improve the scalability of the CFS bandwidth unthrottling logic
    with large number of CPUs.
 
  - Fix & rework various cpuidle routines, simplify interaction with
    the generic scheduler code. Add __cpuidle methods as noinstr to
    objtool's noinstr detection and fix boatloads of cpuidle bugs & quirks.
 
  - Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS,
    to query previously issued registrations.
 
  - Limit scheduler slice duration to the sysctl_sched_latency period,
    to improve scheduling granularity with a large number of SCHED_IDLE
    tasks.
 
  - Debuggability enhancement on sys_exit(): warn about disabled IRQs,
    but also enable them to prevent a cascade of followup problems and
    repeat warnings.
 
  - Fix the rescheduling logic in prio_changed_dl().
 
  - Micro-optimize cpufreq and sched-util methods.
 
  - Micro-optimize ttwu_runnable()
 
  - Micro-optimize the idle-scanning in update_numa_stats(),
    select_idle_capacity() and steal_cookie_task().
 
  - Update the RSEQ code & self-tests
 
  - Constify various scheduler methods
 
  - Remove unused methods
 
  - Refine __init tags
 
  - Documentation updates
 
  - ... Misc other cleanups, fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:

 - Improve the scalability of the CFS bandwidth unthrottling logic with
   large number of CPUs.

 - Fix & rework various cpuidle routines, simplify interaction with the
   generic scheduler code. Add __cpuidle methods as noinstr to objtool's
   noinstr detection and fix boatloads of cpuidle bugs & quirks.

 - Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS, to query
   previously issued registrations.

 - Limit scheduler slice duration to the sysctl_sched_latency period, to
   improve scheduling granularity with a large number of SCHED_IDLE
   tasks.

 - Debuggability enhancement on sys_exit(): warn about disabled IRQs,
   but also enable them to prevent a cascade of followup problems and
   repeat warnings.

 - Fix the rescheduling logic in prio_changed_dl().

 - Micro-optimize cpufreq and sched-util methods.

 - Micro-optimize ttwu_runnable()

 - Micro-optimize the idle-scanning in update_numa_stats(),
   select_idle_capacity() and steal_cookie_task().

 - Update the RSEQ code & self-tests

 - Constify various scheduler methods

 - Remove unused methods

 - Refine __init tags

 - Documentation updates

 - Misc other cleanups, fixes

* tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (110 commits)
  sched/rt: pick_next_rt_entity(): check list_entry
  sched/deadline: Add more reschedule cases to prio_changed_dl()
  sched/fair: sanitize vruntime of entity being placed
  sched/fair: Remove capacity inversion detection
  sched/fair: unlink misfit task from cpu overutilized
  objtool: mem*() are not uaccess safe
  cpuidle: Fix poll_idle() noinstr annotation
  sched/clock: Make local_clock() noinstr
  sched/clock/x86: Mark sched_clock() noinstr
  x86/pvclock: Improve atomic update of last_value in pvclock_clocksource_read()
  x86/atomics: Always inline arch_atomic64*()
  cpuidle: tracing, preempt: Squash _rcuidle tracing
  cpuidle: tracing: Warn about !rcu_is_watching()
  cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG
  cpuidle: drivers: firmware: psci: Dont instrument suspend code
  KVM: selftests: Fix build of rseq test
  exit: Detect and fix irq disabled state in oops
  cpuidle, arm64: Fix the ARM64 cpuidle logic
  cpuidle: mvebu: Fix duplicate flags assignment
  sched/fair: Limit sched slice duration
  ...
2023-02-20 17:41:08 -08:00
Linus Torvalds
05e6295f7b fs.idmapped.v6.3
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Merge tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfs idmapping updates from Christian Brauner:

 - Last cycle we introduced the dedicated struct mnt_idmap type for
   mount idmapping and the required infrastucture in 256c8aed2b42 ("fs:
   introduce dedicated idmap type for mounts"). As promised in last
   cycle's pull request message this converts everything to rely on
   struct mnt_idmap.

   Currently we still pass around the plain namespace that was attached
   to a mount. This is in general pretty convenient but it makes it easy
   to conflate namespaces that are relevant on the filesystem with
   namespaces that are relevant on the mount level. Especially for
   non-vfs developers without detailed knowledge in this area this was a
   potential source for bugs.

   This finishes the conversion. Instead of passing the plain namespace
   around this updates all places that currently take a pointer to a
   mnt_userns with a pointer to struct mnt_idmap.

   Now that the conversion is done all helpers down to the really
   low-level helpers only accept a struct mnt_idmap argument instead of
   two namespace arguments.

   Conflating mount and other idmappings will now cause the compiler to
   complain loudly thus eliminating the possibility of any bugs. This
   makes it impossible for filesystem developers to mix up mount and
   filesystem idmappings as they are two distinct types and require
   distinct helpers that cannot be used interchangeably.

   Everything associated with struct mnt_idmap is moved into a single
   separate file. With that change no code can poke around in struct
   mnt_idmap. It can only be interacted with through dedicated helpers.
   That means all filesystems are and all of the vfs is completely
   oblivious to the actual implementation of idmappings.

   We are now also able to extend struct mnt_idmap as we see fit. For
   example, we can decouple it completely from namespaces for users that
   don't require or don't want to use them at all. We can also extend
   the concept of idmappings so we can cover filesystem specific
   requirements.

   In combination with the vfs{g,u}id_t work we finished in v6.2 this
   makes this feature substantially more robust and thus difficult to
   implement wrong by a given filesystem and also protects the vfs.

 - Enable idmapped mounts for tmpfs and fulfill a longstanding request.

   A long-standing request from users had been to make it possible to
   create idmapped mounts for tmpfs. For example, to share the host's
   tmpfs mount between multiple sandboxes. This is a prerequisite for
   some advanced Kubernetes cases. Systemd also has a range of use-cases
   to increase service isolation. And there are more users of this.

   However, with all of the other work going on this was way down on the
   priority list but luckily someone other than ourselves picked this
   up.

   As usual the patch is tiny as all the infrastructure work had been
   done multiple kernel releases ago. In addition to all the tests that
   we already have I requested that Rodrigo add a dedicated tmpfs
   testsuite for idmapped mounts to xfstests. It is to be included into
   xfstests during the v6.3 development cycle. This should add a slew of
   additional tests.

* tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: (26 commits)
  shmem: support idmapped mounts for tmpfs
  fs: move mnt_idmap
  fs: port vfs{g,u}id helpers to mnt_idmap
  fs: port fs{g,u}id helpers to mnt_idmap
  fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap
  fs: port i_{g,u}id_{needs_}update() to mnt_idmap
  quota: port to mnt_idmap
  fs: port privilege checking helpers to mnt_idmap
  fs: port inode_owner_or_capable() to mnt_idmap
  fs: port inode_init_owner() to mnt_idmap
  fs: port acl to mnt_idmap
  fs: port xattr to mnt_idmap
  fs: port ->permission() to pass mnt_idmap
  fs: port ->fileattr_set() to pass mnt_idmap
  fs: port ->set_acl() to pass mnt_idmap
  fs: port ->get_acl() to pass mnt_idmap
  fs: port ->tmpfile() to pass mnt_idmap
  fs: port ->rename() to pass mnt_idmap
  fs: port ->mknod() to pass mnt_idmap
  fs: port ->mkdir() to pass mnt_idmap
  ...
2023-02-20 11:53:11 -08:00
Linus Torvalds
3ac88fa460 Fixes from the main networking tree only.
Current release - regressions:
 
   - fix unwanted sign extension in netdev_stats_to_stats64()
 
 Current release - new code bugs:
 
  - initialize net->notrefcnt_tracker earlier
 
  - devlink: fix netdev notifier chain corruption
 
  - nfp: make sure mbox accesses in IPsec code are atomic
 
  - ice: fix check for weight and priority of a scheduling node
 
 Previous releases - regressions:
 
  - ice: xsk: fix cleaning of XDP_TX frame, prevent inf loop
 
  - igb: fix I2C bit banging config with external thermal sensor
 
 Previous releases - always broken:
 
  - sched: tcindex: update imperfect hash filters respecting rcu
 
  - mpls: fix stale pointer if allocation fails during device rename
 
  - dccp/tcp: avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions
 
  - remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues()
 
  - af_key: fix heap information leak
 
  - ipv6: fix socket connection with DSCP (correct interpretation
    of the tclass field vs fib rule matching)
 
  - tipc: fix kernel warning when sending SYN message
 
  - vmxnet3: read RSS information from the correct descriptor (eop)
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Fixes from the main networking tree only, probably because all
  sub-trees have backed off and haven't submitted their changes.

  None of the fixes here are particularly scary and no outstanding
  regressions. In an ideal world the "current release" sections would be
  empty at this stage but that never happens.

  Current release - regressions:

   - fix unwanted sign extension in netdev_stats_to_stats64()

  Current release - new code bugs:

   - initialize net->notrefcnt_tracker earlier

   - devlink: fix netdev notifier chain corruption

   - nfp: make sure mbox accesses in IPsec code are atomic

   - ice: fix check for weight and priority of a scheduling node

  Previous releases - regressions:

   - ice: xsk: fix cleaning of XDP_TX frame, prevent inf loop

   - igb: fix I2C bit banging config with external thermal sensor

  Previous releases - always broken:

   - sched: tcindex: update imperfect hash filters respecting rcu

   - mpls: fix stale pointer if allocation fails during device rename

   - dccp/tcp: avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions

   - remove WARN_ON_ONCE(sk->sk_forward_alloc) from
     sk_stream_kill_queues()

   - af_key: fix heap information leak

   - ipv6: fix socket connection with DSCP (correct interpretation of
     the tclass field vs fib rule matching)

   - tipc: fix kernel warning when sending SYN message

   - vmxnet3: read RSS information from the correct descriptor (eop)"

* tag 'net-6.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
  devlink: Fix netdev notifier chain corruption
  igb: conditionalize I2C bit banging on external thermal sensor support
  net: mpls: fix stale pointer if allocation fails during device rename
  net/sched: tcindex: search key must be 16 bits
  tipc: fix kernel warning when sending SYN message
  igb: Fix PPS input and output using 3rd and 4th SDP
  net: use a bounce buffer for copying skb->mark
  ixgbe: add double of VLAN header when computing the max MTU
  i40e: add double of VLAN header when computing the max MTU
  ixgbe: allow to increase MTU to 3K with XDP enabled
  net: stmmac: Restrict warning on disabling DMA store and fwd mode
  net/sched: act_ctinfo: use percpu stats
  net: stmmac: fix order of dwmac5 FlexPPS parametrization sequence
  ice: fix lost multicast packets in promisc mode
  ice: Fix check for weight and priority of a scheduling node
  bnxt_en: Fix mqprio and XDP ring checking logic
  net: Fix unwanted sign extension in netdev_stats_to_stats64()
  net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path
  net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()
  af_key: Fix heap information leak
  ...
2023-02-16 12:13:58 -08:00
Rafael J. Wysocki
dd855f01e8 Merge branches 'pm-tools' and 'pm-docs'
Merge power management utilities and documentation updates for 6.3-rc1:

 - Modify some power management utilities to use the canonical ftrace
   path (Ross Zwisler).

 - Correct spelling problems for Documentation/power/ as reported by
   codespell (Randy Dunlap).

* pm-tools:
  PM: tools: use canonical ftrace path

* pm-docs:
  Documentation: power: correct spelling
2023-02-15 20:09:09 +01:00
Vibhav Pant
ef1ab1657f tools/lib/thermal: Fix include path for libnl3 in pkg-config file.
Fixes pkg-config returning malformed CFLAGS for libthermal.

Signed-off-by: Vibhav Pant <vibhavp@gmail.com>
Link: https://lore.kernel.org/r/20230211081935.62690-1-vibhavp@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-15 17:29:40 +01:00
Vincent Guittot
a29cbd76aa tools/lib/thermal: Fix thermal_sampling_exit()
thermal_sampling_init() suscribes to THERMAL_GENL_SAMPLING_GROUP_NAME group
so thermal_sampling_exit() should unsubscribe from the same group.

Fixes: 47c4b0de080a ("tools/lib/thermal: Add a thermal library")
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230202102812.453357-1-vincent.guittot@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-15 17:27:41 +01:00
Juergen Gross
f697cb00af x86/xen: mark xen_pv_play_dead() as __noreturn
Mark xen_pv_play_dead() and related to that xen_cpu_bringup_again()
as "__noreturn".

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221125063248.30256-3-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-02-13 06:53:19 +01:00
Linus Torvalds
230809c145 Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
This reverts commit 115d9d77bb0f9152c60b6e8646369fa7f6167593.
 
 The pages being freed by memblock_free_late() have already been
 initialized, but if they are in the deferred init range, __free_one_page()
 might access nearby uninitialized pages when trying to coalesce buddies,
 which will cause a crash.
 
 A proper fix will be more involved so revert this change for the time
 being.
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Merge tag 'fixes-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock revert from Mike Rapoport:
 "Revert 'mm: Always release pages to the buddy allocator in
  memblock_free_late()'

  The pages being freed by memblock_free_late() have already been
  initialized, but if they are in the deferred init range,
  __free_one_page() might access nearby uninitialized pages when trying
  to coalesce buddies, which will cause a crash.

  A proper fix will be more involved so revert this change for the time
  being"

* tag 'fixes-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
2023-02-11 10:51:45 -08:00
Josh Poimboeuf
ffb1b4a410 x86/unwind/orc: Add 'signal' field to ORC metadata
Add a 'signal' field which allows unwind hints to specify whether the
instruction pointer should be taken literally (like for most interrupts
and exceptions) rather than decremented (like for call stack return
addresses) when used to find the next ORC entry.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/d2c5ec4d83a45b513d8fd72fab59f1a8cfa46871.1676068346.git.jpoimboe@kernel.org
2023-02-11 12:37:51 +01:00
Peter Zijlstra
443ed4c302 objtool: mem*() are not uaccess safe
For mysterious raisins I listed the new __asan_mem*() functions as
being uaccess safe, this is giving objtool fails on KASAN builds
because these functions call out to the actual __mem*() functions
which are not marked uaccess safe.

Removing it doesn't make the robots unhappy.

Fixes: 69d4c0d32186 ("entry, kasan, x86: Disallow overriding mem*() functions")
Reported-by: "Paul E. McKenney" <paulmck@kernel.org>
Bisected-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230126182302.GA687063@paulmck-ThinkPad-P17-Gen-1
2023-02-11 11:18:08 +01:00
Catalin Marinas
156010ed9c Merge branches 'for-next/sysreg', 'for-next/sme', 'for-next/kselftest', 'for-next/misc', 'for-next/sme2', 'for-next/tpidr2', 'for-next/scs', 'for-next/compat-hwcap', 'for-next/ftrace', 'for-next/efi-boot-mmu-on', 'for-next/ptrauth' and 'for-next/pseudo-nmi', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
  perf: arm_spe: Print the version of SPE detected
  perf: arm_spe: Add support for SPEv1.2 inverted event filtering
  perf: Add perf_event_attr::config3
  drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable
  perf: arm_spe: Support new SPEv1.2/v8.7 'not taken' event
  perf: arm_spe: Use new PMSIDR_EL1 register enums
  perf: arm_spe: Drop BIT() and use FIELD_GET/PREP accessors
  arm64/sysreg: Convert SPE registers to automatic generation
  arm64: Drop SYS_ from SPE register defines
  perf: arm_spe: Use feature numbering for PMSEVFR_EL1 defines
  perf/marvell: Add ACPI support to TAD uncore driver
  perf/marvell: Add ACPI support to DDR uncore driver
  perf/arm-cmn: Reset DTM_PMU_CONFIG at probe
  drivers/perf: hisi: Extract initialization of "cpa_pmu->pmu"
  drivers/perf: hisi: Simplify the parameters of hisi_pmu_init()
  drivers/perf: hisi: Advertise the PERF_PMU_CAP_NO_EXCLUDE capability

* for-next/sysreg:
  : arm64 sysreg and cpufeature fixes/updates
  KVM: arm64: Use symbolic definition for ISR_EL1.A
  arm64/sysreg: Add definition of ISR_EL1
  arm64/sysreg: Add definition for ICC_NMIAR1_EL1
  arm64/cpufeature: Remove 4 bit assumption in ARM64_FEATURE_MASK()
  arm64/sysreg: Fix errors in 32 bit enumeration values
  arm64/cpufeature: Fix field sign for DIT hwcap detection

* for-next/sme:
  : SME-related updates
  arm64/sme: Optimise SME exit on syscall entry
  arm64/sme: Don't use streaming mode to probe the maximum SME VL
  arm64/ptrace: Use system_supports_tpidr2() to check for TPIDR2 support

* for-next/kselftest: (23 commits)
  : arm64 kselftest fixes and improvements
  kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests
  kselftest/arm64: Copy whole EXTRA context
  kselftest/arm64: Fix enumeration of systems without 128 bit SME for SSVE+ZA
  kselftest/arm64: Fix enumeration of systems without 128 bit SME
  kselftest/arm64: Don't require FA64 for streaming SVE tests
  kselftest/arm64: Limit the maximum VL we try to set via ptrace
  kselftest/arm64: Correct buffer size for SME ZA storage
  kselftest/arm64: Remove the local NUM_VL definition
  kselftest/arm64: Verify simultaneous SSVE and ZA context generation
  kselftest/arm64: Verify that SSVE signal context has SVE_SIG_FLAG_SM set
  kselftest/arm64: Remove spurious comment from MTE test Makefile
  kselftest/arm64: Support build of MTE tests with clang
  kselftest/arm64: Initialise current at build time in signal tests
  kselftest/arm64: Don't pass headers to the compiler as source
  kselftest/arm64: Remove redundant _start labels from FP tests
  kselftest/arm64: Fix .pushsection for strings in FP tests
  kselftest/arm64: Run BTI selftests on systems without BTI
  kselftest/arm64: Fix test numbering when skipping tests
  kselftest/arm64: Skip non-power of 2 SVE vector lengths in fp-stress
  kselftest/arm64: Only enumerate power of two VLs in syscall-abi
  ...

* for-next/misc:
  : Miscellaneous arm64 updates
  arm64/mm: Intercept pfn changes in set_pte_at()
  Documentation: arm64: correct spelling
  arm64: traps: attempt to dump all instructions
  arm64: Apply dynamic shadow call stack patching in two passes
  arm64: el2_setup.h: fix spelling typo in comments
  arm64: Kconfig: fix spelling
  arm64: cpufeature: Use kstrtobool() instead of strtobool()
  arm64: Avoid repeated AA64MMFR1_EL1 register read on pagefault path
  arm64: make ARCH_FORCE_MAX_ORDER selectable

* for-next/sme2: (23 commits)
  : Support for arm64 SME 2 and 2.1
  arm64/sme: Fix __finalise_el2 SMEver check
  kselftest/arm64: Remove redundant _start labels from zt-test
  kselftest/arm64: Add coverage of SME 2 and 2.1 hwcaps
  kselftest/arm64: Add coverage of the ZT ptrace regset
  kselftest/arm64: Add SME2 coverage to syscall-abi
  kselftest/arm64: Add test coverage for ZT register signal frames
  kselftest/arm64: Teach the generic signal context validation about ZT
  kselftest/arm64: Enumerate SME2 in the signal test utility code
  kselftest/arm64: Cover ZT in the FP stress test
  kselftest/arm64: Add a stress test program for ZT0
  arm64/sme: Add hwcaps for SME 2 and 2.1 features
  arm64/sme: Implement ZT0 ptrace support
  arm64/sme: Implement signal handling for ZT
  arm64/sme: Implement context switching for ZT0
  arm64/sme: Provide storage for ZT0
  arm64/sme: Add basic enumeration for SME2
  arm64/sme: Enable host kernel to access ZT0
  arm64/sme: Manually encode ZT0 load and store instructions
  arm64/esr: Document ISS for ZT0 being disabled
  arm64/sme: Document SME 2 and SME 2.1 ABI
  ...

* for-next/tpidr2:
  : Include TPIDR2 in the signal context
  kselftest/arm64: Add test case for TPIDR2 signal frame records
  kselftest/arm64: Add TPIDR2 to the set of known signal context records
  arm64/signal: Include TPIDR2 in the signal context
  arm64/sme: Document ABI for TPIDR2 signal information

* for-next/scs:
  : arm64: harden shadow call stack pointer handling
  arm64: Stash shadow stack pointer in the task struct on interrupt
  arm64: Always load shadow stack pointer directly from the task struct

* for-next/compat-hwcap:
  : arm64: Expose compat ARMv8 AArch32 features (HWCAPs)
  arm64: Add compat hwcap SSBS
  arm64: Add compat hwcap SB
  arm64: Add compat hwcap I8MM
  arm64: Add compat hwcap ASIMDBF16
  arm64: Add compat hwcap ASIMDFHM
  arm64: Add compat hwcap ASIMDDP
  arm64: Add compat hwcap FPHP and ASIMDHP

* for-next/ftrace:
  : Add arm64 support for DYNAMICE_FTRACE_WITH_CALL_OPS
  arm64: avoid executing padding bytes during kexec / hibernation
  arm64: Implement HAVE_DYNAMIC_FTRACE_WITH_CALL_OPS
  arm64: ftrace: Update stale comment
  arm64: patching: Add aarch64_insn_write_literal_u64()
  arm64: insn: Add helpers for BTI
  arm64: Extend support for CONFIG_FUNCTION_ALIGNMENT
  ACPI: Don't build ACPICA with '-Os'
  Compiler attributes: GCC cold function alignment workarounds
  ftrace: Add DYNAMIC_FTRACE_WITH_CALL_OPS

* for-next/efi-boot-mmu-on:
  : Permit arm64 EFI boot with MMU and caches on
  arm64: kprobes: Drop ID map text from kprobes blacklist
  arm64: head: Switch endianness before populating the ID map
  efi: arm64: enter with MMU and caches enabled
  arm64: head: Clean the ID map and the HYP text to the PoC if needed
  arm64: head: avoid cache invalidation when entering with the MMU on
  arm64: head: record the MMU state at primary entry
  arm64: kernel: move identity map out of .text mapping
  arm64: head: Move all finalise_el2 calls to after __enable_mmu

* for-next/ptrauth:
  : arm64 pointer authentication cleanup
  arm64: pauth: don't sign leaf functions
  arm64: unify asm-arch manipulation

* for-next/pseudo-nmi:
  : Pseudo-NMI code generation optimisations
  arm64: irqflags: use alternative branches for pseudo-NMI logic
  arm64: add ARM64_HAS_GIC_PRIO_RELAXED_SYNC cpucap
  arm64: make ARM64_HAS_GIC_PRIO_MASKING depend on ARM64_HAS_GIC_CPUIF_SYSREGS
  arm64: rename ARM64_HAS_IRQ_PRIO_MASKING to ARM64_HAS_GIC_PRIO_MASKING
  arm64: rename ARM64_HAS_SYSREG_GIC_CPUIF to ARM64_HAS_GIC_CPUIF_SYSREGS
2023-02-10 18:51:49 +00:00
Guillaume Nault
c21a20d9d1 selftests: fib_rule_tests: Test UDP and TCP connections with DSCP rules.
Add the fib_rule6_send and fib_rule4_send tests to verify that DSCP
values are properly taken into account when UDP or TCP sockets try to
connect().

Tests are done with nettest, which needs a new option to specify
the DS Field value of the socket being tested. This new option is
named '-Q', in reference to the similar option used by ping.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-09 22:49:04 -08:00
Linus Torvalds
35674e7875 Networking fixes for 6.2-rc8, including fixes from can and
ipsec subtrees
 
 Current release - regressions:
 
  - sched: fix off by one in htb_activate_prios()
 
  - eth: mana: fix accessing freed irq affinity_hint
 
  - eth: ice: fix out-of-bounds KASAN warning in virtchnl
 
 Current release - new code bugs:
 
  - eth: mtk_eth_soc: enable special tag when any MAC uses DSA
 
 Previous releases - always broken:
 
  - core: fix sk->sk_txrehash default
 
  - neigh: make sure used and confirmed times are valid
 
  - mptcp: be careful on subflow status propagation on errors
 
  - xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
 
  - phylink: move phy_device_free() to correctly release phy device
 
  - eth: mlx5:
    - fix crash unsetting rx-vlan-filter in switchdev mode
    - fix hang on firmware reset
    - serialize module cleanup with reload and remove
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can and ipsec subtrees.

  Current release - regressions:

   - sched: fix off by one in htb_activate_prios()

   - eth: mana: fix accessing freed irq affinity_hint

   - eth: ice: fix out-of-bounds KASAN warning in virtchnl

  Current release - new code bugs:

   - eth: mtk_eth_soc: enable special tag when any MAC uses DSA

  Previous releases - always broken:

   - core: fix sk->sk_txrehash default

   - neigh: make sure used and confirmed times are valid

   - mptcp: be careful on subflow status propagation on errors

   - xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

   - phylink: move phy_device_free() to correctly release phy device

   - eth: mlx5:
      - fix crash unsetting rx-vlan-filter in switchdev mode
      - fix hang on firmware reset
      - serialize module cleanup with reload and remove"

* tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  selftests: forwarding: lib: quote the sysctl values
  net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
  rds: rds_rm_zerocopy_callback() use list_first_entry()
  net: txgbe: Update support email address
  selftests: Fix failing VXLAN VNI filtering test
  selftests: mptcp: stop tests earlier
  selftests: mptcp: allow more slack for slow test-case
  mptcp: be careful on subflow status propagation on errors
  mptcp: fix locking for in-kernel listener creation
  mptcp: fix locking for setsockopt corner-case
  mptcp: do not wait for bare sockets' timeout
  net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0
  nfp: ethtool: fix the bug of setting unsupported port speed
  txhash: fix sk->sk_txrehash default
  net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg()
  net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA
  net: sched: sch: Fix off by one in htb_activate_prios()
  igc: Add ndo_tx_timeout support
  net: mana: Fix accessing freed irq affinity_hint
  hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
  ...
2023-02-09 09:17:38 -08:00
Hangbin Liu
3a082086aa selftests: forwarding: lib: quote the sysctl values
When set/restore sysctl value, we should quote the value as some keys
may have multi values, e.g. net.ipv4.ping_group_range

Fixes: f5ae57784ba8 ("selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20230208032110.879205-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-09 11:05:38 +01:00
Ido Schimmel
b963d9d5b9 selftests: Fix failing VXLAN VNI filtering test
iproute2 does not recognize the "group6" and "remote6" keywords. Fix by
using "group" and "remote" instead.

Before:

 # ./test_vxlan_vnifiltering.sh
 [...]
 Tests passed:  25
 Tests failed:   2

After:

 # ./test_vxlan_vnifiltering.sh
 [...]
 Tests passed:  27
 Tests failed:   0

Fixes: 3edf5f66c12a ("selftests: add new tests for vxlan vnifiltering")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230207141819.256689-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-08 16:54:03 -08:00
Matthieu Baerts
070d6dafac selftests: mptcp: stop tests earlier
These 'endpoint' tests from 'mptcp_join.sh' selftest start a transfer in
the background and check the status during this transfer.

Once the expected events have been recorded, there is no reason to wait
for the data transfer to finish. It can be stopped earlier to reduce the
execution time by more than half.

For these tests, the exchanged data were not verified. Errors, if any,
were ignored but that's fine, plenty of other tests are looking at that.
It is then OK to mute stderr now that we are sure errors will be printed
(and still ignored) because the transfer is stopped before the end.

Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-08 09:39:34 +00:00
Paolo Abeni
a635a8c3df selftests: mptcp: allow more slack for slow test-case
A test-case is frequently failing on some extremely slow VMs.
The mptcp transfer completes before the script is able to do
all the required PM manipulation.

Address the issue in the simplest possible way, making the
transfer even more slow.

Additionally dump more info in case of failures, to help debugging
similar problems in the future and init dump_stats var.

Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/323
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-08 09:39:34 +00:00
Mark Brown
2c4192c0a7 kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests
During early development a dependedncy was added on having FA64
available so we could use the full FPSIMD register set in the signal
handler which got copied over into the SSVE+ZA registers test case.
Subsequently the ABI was finialised so the handler is run with streaming
mode disabled meaning this is redundant but the dependency was never
removed, do so now.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230202-arm64-kselftest-sve-za-fa64-v1-1-5c5f3dabe441@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2023-02-07 18:34:13 +00:00
Mark Brown
6012b82020 kselftest/arm64: Copy whole EXTRA context
When copying the EXTRA context our calculation of the amount of data we
need to copy is incorrect, we only calculate the amount of data needed
within uc_mcontext.__reserved, not taking account of the fixed portion
of the context. Add in the offset of the reserved data so that we copy
everything we should.

This will only cause test failures in cases where the last context in the
EXTRA context is smaller than the missing data since we don't currently
validate any of the register data and all the buffers we copy into are
statically allocated so default to zero meaning that if we walk beyond the
end of what we copied we'll encounter what looks like a context with magic
and length both 0 which is a valid terminator record.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230201-arm64-kselftest-full-extra-v1-1-93741f32dd29@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2023-02-07 18:33:46 +00:00
Vladimir Oltean
bbb253b206 selftests: ocelot: tc_flower_chains: make test_vlan_ingress_modify() more comprehensive
We have two IS1 filters of the OCELOT_VCAP_KEY_ANY key type (the one with
"action vlan pop" and the one with "action vlan modify") and one of the
OCELOT_VCAP_KEY_IPV4 key type (the one with "action skbedit priority").
But we have no IS1 filter with the OCELOT_VCAP_KEY_ETYPE key type, and
there was an uncaught breakage there.

To increase test coverage, convert one of the OCELOT_VCAP_KEY_ANY
filters to OCELOT_VCAP_KEY_ETYPE, by making the filter also match on the
MAC SA of the traffic sent by mausezahn, $h1_mac.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20230205192409.1796428-2-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-07 12:20:21 +01:00
Aaron Thompson
647037adca Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
This reverts commit 115d9d77bb0f9152c60b6e8646369fa7f6167593.

The pages being freed by memblock_free_late() have already been
initialized, but if they are in the deferred init range,
__free_one_page() might access nearby uninitialized pages when trying to
coalesce buddies. This can, for example, trigger this BUG:

  BUG: unable to handle page fault for address: ffffe964c02580c8
  RIP: 0010:__list_del_entry_valid+0x3f/0x70
   <TASK>
   __free_one_page+0x139/0x410
   __free_pages_ok+0x21d/0x450
   memblock_free_late+0x8c/0xb9
   efi_free_boot_services+0x16b/0x25c
   efi_enter_virtual_mode+0x403/0x446
   start_kernel+0x678/0x714
   secondary_startup_64_no_verify+0xd2/0xdb
   </TASK>

A proper fix will be more involved so revert this change for the time
being.

Fixes: 115d9d77bb0f ("mm: Always release pages to the buddy allocator in memblock_free_late().")
Signed-off-by: Aaron Thompson <dev@aaront.org>
Link: https://lore.kernel.org/r/20230207082151.1303-1-dev@aaront.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
2023-02-07 13:07:37 +02:00
Sebastian Andrzej Siewior
5646bbd668 selftests: Emit a warning if getcpu() is missing on 32bit
The VDSO implementation for getcpu() has been wired up on 32bit so warn if
missing.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221125094216.3663444-4-bigeasy@linutronix.de
2023-02-06 15:48:54 +01:00
Linus Torvalds
c00f4ddde0 ARM64:
- Yet another fix for non-CPU accesses to the memory backing
   the VGICv3 subsystem
 
 - A set of fixes for the setlftest checking for the S1PTW
   behaviour after the fix that went in ealier in the cycle
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM64:

   - Yet another fix for non-CPU accesses to the memory backing the
     VGICv3 subsystem

   - A set of fixes for the setlftest checking for the S1PTW behaviour
     after the fix that went in ealier in the cycle"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: selftests: aarch64: Test read-only PT memory regions
  KVM: selftests: aarch64: Fix check of dirty log PT write
  KVM: selftests: aarch64: Do not default to dirty PTE pages on all S1PTWs
  KVM: selftests: aarch64: Relax userfaultfd read vs. write checks
  KVM: arm64: Allow no running vcpu on saving vgic3 pending table
  KVM: arm64: Allow no running vcpu on restoring vgic3 LPI pending status
  KVM: arm64: Add helper vgic_write_guest_lock()
2023-02-04 11:21:27 -08:00
Paolo Bonzini
25b72cf7da KVM/arm64 fixes for 6.2, take #3
- Yet another fix for non-CPU accesses to the memory backing
   the VGICv3 subsystem
 
 - A set of fixes for the setlftest checking for the S1PTW
   behaviour after the fix that went in ealier in the cycle
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Merge tag 'kvmarm-fixes-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.2, take #3

- Yet another fix for non-CPU accesses to the memory backing
  the VGICv3 subsystem

- A set of fixes for the setlftest checking for the S1PTW
  behaviour after the fix that went in ealier in the cycle
2023-02-04 08:57:43 -05:00
Linus Torvalds
0c272a1d33 25 hotfixes, mainly for MM. 13 are cc:stable.
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Merge tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "25 hotfixes, mainly for MM.  13 are cc:stable"

* tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (26 commits)
  mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
  Kconfig.debug: fix the help description in SCHED_DEBUG
  mm/swapfile: add cond_resched() in get_swap_pages()
  mm: use stack_depot_early_init for kmemleak
  Squashfs: fix handling and sanity checking of xattr_ids count
  sh: define RUNTIME_DISCARD_EXIT
  highmem: round down the address passed to kunmap_flush_on_unmap()
  migrate: hugetlb: check for hugetlb shared PMD in node migration
  mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
  mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups
  Revert "mm: kmemleak: alloc gray object for reserved region with direct map"
  freevxfs: Kconfig: fix spelling
  maple_tree: should get pivots boundary by type
  .mailmap: update e-mail address for Eugen Hristev
  mm, mremap: fix mremap() expanding for vma's with vm_ops->close()
  squashfs: harden sanity check in squashfs_read_xattr_id_table
  ia64: fix build error due to switch case label appearing next to declaration
  mm: multi-gen LRU: fix crash during cgroup migration
  Revert "mm: add nodes= arg to memory.reclaim"
  zsmalloc: fix a race with deferred_handles storing
  ...
2023-02-03 10:01:57 -08:00
Srinivas Pandruvada
d1fcb7493f tools/power/x86/intel-speed-select: v1.14 release
This release adds following change:
- Minor fixes for coverity static analysis
- Don't read cpufreq on offline CPUs
- SST turbo-freq enable on auto mode when user disables SMT from
kernel command line
- Fix uncore frequency display
- Set uncore frequency max/min limits on perf level change

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 10:01:50 +01:00
Srinivas Pandruvada
2612ae5961 tools/power/x86/intel-speed-select: Adjust uncore max/min frequency
When perf level is changed, uncore limits can change. Set the uncore
limits via Linux uncore sysfs, when user changes perf level with
-o option.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 10:01:50 +01:00
Zhang Rui
61f9fdcdcd tools/power/x86/intel-speed-select: Add Emerald Rapid quirk
Need memory frequency quirk as Sapphire Rapids in Emerald Rapids.
So add Emerald Rapids CPU model check in is_spr_platform().

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
[srinivas.pandruvada@linux.intel.com: Subject, changelog and code edits]
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 10:00:24 +01:00
Srinivas Pandruvada
0d5eea3527 tools/power/x86/intel-speed-select: Fix display of uncore min frequency
Uncore P1 is not uncore minmum frequency. This is uncore base frequency.
Correct display from uncore-frequency-min(MHz)
to uncore-frequency-base(Mhz).

To get uncore min frequency use mailbox command
CONFIG_TDP_GET_RATIO_INFO. Use this mailbox to get uncore frequency
limits when present.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 10:00:24 +01:00
Srinivas Pandruvada
6ed9e36315 tools/power/x86/intel-speed-select: turbo-freq auto mode with SMT off
When SMT is disabled from kernel command line, sibling CPUs still
appears in the sysfs as offline CPUs. This is a problem when turbo-freq
is enabled in auto mode. They are still assigned to CLOS value
of 3 as they are still in the present CPU list. But they are not in the
sibling list of a CPU. When the CPU is a high priority CPU, because of
sibling it will be still set to CLOS to 3 as CLOS is assigned at core
level not at CPU level.

So, avoid setting CLOS 3 to offline CPU.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:57:10 +01:00
Srinivas Pandruvada
cf3b8e8f55 tools/power/x86/intel-speed-select: cpufreq reads on offline CPUs
Due to some recent kernel changes, reading cpufreq attributes like
scaling_max_freq on offline CPUs returns error. So avoid reading
cpufreq attributes on offline CPUs.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:57:07 +01:00
Zhang Rui
689dfc9e40 tools/power/x86/intel-speed-select: Use null-terminated string
strlen() and strtok() takes null-termimated strings as input.
Make sure these strings are null-terminated before using them.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:57:05 +01:00
Zhang Rui
8a44d27542 tools/power/x86/intel-speed-select: Remove duplicate dup()
Remove the duplicate dup() invocation.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:57:01 +01:00
Zhang Rui
364ba3b711 tools/power/x86/intel-speed-select: Handle open() failure case
Add handling for open() failure case to make sure a valid file
descriptor is passed to dup().

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:56:58 +01:00
Zhang Rui
b8bebc8e58 tools/power/x86/intel-speed-select: Remove unused non_block flag
variable 'non_block' is always 0, thus remove the variable and the
handling for "non_block != 0" case.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-03 09:56:53 +01:00