[PATCH] powerpc/pci: Fix get_phb_number() locking

The recent change to get_phb_number() causes a DEBUG_ATOMIC_SLEEP warning on some systems: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper preempt_count: 1, expected: 0 RCU nest depth:

Re: [PATCH v2 2/2] powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias

Guenter Roeck writes: > On Wed, Jul 06, 2022 at 12:21:48PM +0200, Pali Rohár wrote: >> Other Linux architectures use DT property 'linux,pci-domain' for specifying >> fixed PCI domain of PCI controller specified in Device-Tree. >> >> And lot of Freescale powerpc boards have defined numbered pci al

Re: [PATCH 17/17] powerpc/qspinlock: provide accounting and options for sleepy locks

On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: > Finding the owner or a queued waiter on a lock with a preempted vcpu > is indicative of an oversubscribed guest causing the lock to get into > trouble. Provide some options to detect this situation and have new > CPUs avoid queueing for a

Re: [PATCH v2 11/14] powerpc/64s: Clear/restore caller gprs in syscall interrupt/return

> On 11 Aug 2022, at 8:11 pm, Andrew Donnellan wrote: > > On Mon, 2022-07-25 at 16:31 +1000, Rohan McLure wrote: >> Clear user state in gprs (assign to zero) to reduce the influence of >> user >> registers on speculation within kernel syscall handlers. Clears occur >> at the very beginning of the

Re: [PATCH v2 11/14] powerpc/64s: Clear/restore caller gprs in syscall interrupt/return

>>> "Nullify" means "invalidate", which is not what this does or is for :-( >> >> Would "Zeroise" be more appropriate ? > > That is probably a good compromise, yes. It obviously is a verb, its > meaning is clear and unamiguous, and there is precedent for it even :-) Zeroise it is. The ‘zeroize’

Re: [PATCH v7 4/6] tpm: of: Make of-tree specific function commonly available

On Sun, Aug 14, 2022 at 10:16:09PM +0300, Jarkko Sakkinen wrote: > On Fri, Aug 12, 2022 at 12:43:03PM -0400, Stefan Berger wrote: > > Simplify tpm_read_log_of() by moving reusable parts of the code into > > an inline function that makes it commonly available so it can be > > used also for kexec sup

Re: [PATCH v7 4/6] tpm: of: Make of-tree specific function commonly available

On Fri, Aug 12, 2022 at 12:43:03PM -0400, Stefan Berger wrote: > Simplify tpm_read_log_of() by moving reusable parts of the code into > an inline function that makes it commonly available so it can be > used also for kexec support. Call the new of_tpm_get_sml_parameters() > function from the TPM Op

Re: [GIT PULL] Please pull powerpc/linux.git powerpc-6.0-2 tag

The pull request you sent on Sun, 14 Aug 2022 09:27:37 +1000: > https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git > tags/powerpc-6.0-2 has been merged into torvalds/linux.git: https://git.kernel.org/torvalds/c/d785610f052d7456497cdec2a2406f6d4b16569f Thank you! -- Deet-doot-do

[PATCH AUTOSEL 4.9 6/8] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 4.9 1/8] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 4.14 7/9] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 4.14 1/9] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 4.19 12/14] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 4.19 02/14] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 5.4 14/16] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 5.4 09/16] powerpc/32: Don't always pass -mcpu=powerpc to the compiler

From: Christophe Leroy [ Upstream commit 446cda1b21d9a6b3697fe399c6a3a00ff4a285f5 ] Since commit 4bf4f42a2feb ("powerpc/kbuild: Set default generic machine type for 32-bit compile"), when building a 32 bits kernel with a bi-arch version of GCC, or when building a book3s/32 kernel, the option -mc

[PATCH AUTOSEL 5.4 02/16] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 5.10 17/19] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 5.10 10/19] powerpc/32: Don't always pass -mcpu=powerpc to the compiler

From: Christophe Leroy [ Upstream commit 446cda1b21d9a6b3697fe399c6a3a00ff4a285f5 ] Since commit 4bf4f42a2feb ("powerpc/kbuild: Set default generic machine type for 32-bit compile"), when building a 32 bits kernel with a bi-arch version of GCC, or when building a book3s/32 kernel, the option -mc

[PATCH AUTOSEL 5.10 02/19] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 5.15 25/28] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 5.15 18/28] powerpc/ioda/iommu/debugfs: Generate unique debugfs entries

From: Alexey Kardashevskiy [ Upstream commit d73b46c3c1449bf27f793b9d9ee86ed70c7a7163 ] The iommu_table::it_index is a LIOBN which is not initialized on PowerNV as it is not used except IOMMU debugfs where it is used for a node name. This initializes it_index witn a unique number to avoid warni

[PATCH AUTOSEL 5.15 16/28] powerpc/32: Don't always pass -mcpu=powerpc to the compiler

From: Christophe Leroy [ Upstream commit 446cda1b21d9a6b3697fe399c6a3a00ff4a285f5 ] Since commit 4bf4f42a2feb ("powerpc/kbuild: Set default generic machine type for 32-bit compile"), when building a 32 bits kernel with a bi-arch version of GCC, or when building a book3s/32 kernel, the option -mc

[PATCH AUTOSEL 5.15 15/28] powerpc/32: Set an IBAT covering up to _einittext during init

From: Christophe Leroy [ Upstream commit 2a0fb3c155c97c75176e557d61f8e66c1bd9b735 ] Always set an IBAT covering up to _einittext during init because when CONFIG_MODULES is not selected there is no reason to have an exception handler for kernel instruction TLB misses. It implies DBAT and IBAT ar

[PATCH AUTOSEL 5.15 03/28] KVM: PPC: Book3S HV: Fix "rm_exit" entry in debugfs timings

From: Fabiano Rosas [ Upstream commit 9981bace85d816ed8724ac46e49285e8488d29e6 ] At debugfs/kvm//vcpu0/timings we show how long each part of the code takes to run: $ cat /sys/kernel/debug/kvm/*-*/vcpu0/timings rm_entry: 123785 49398892 118 4898 rm_intr: 123780 6075890 22 390 rm_exit: 0 0 0 0

[PATCH AUTOSEL 5.15 02/28] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 5.18 36/39] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 5.18 28/39] powerpc/ioda/iommu/debugfs: Generate unique debugfs entries

From: Alexey Kardashevskiy [ Upstream commit d73b46c3c1449bf27f793b9d9ee86ed70c7a7163 ] The iommu_table::it_index is a LIOBN which is not initialized on PowerNV as it is not used except IOMMU debugfs where it is used for a node name. This initializes it_index witn a unique number to avoid warni

[PATCH AUTOSEL 5.18 25/39] powerpc/32: Don't always pass -mcpu=powerpc to the compiler

From: Christophe Leroy [ Upstream commit 446cda1b21d9a6b3697fe399c6a3a00ff4a285f5 ] Since commit 4bf4f42a2feb ("powerpc/kbuild: Set default generic machine type for 32-bit compile"), when building a 32 bits kernel with a bi-arch version of GCC, or when building a book3s/32 kernel, the option -mc

[PATCH AUTOSEL 5.18 24/39] powerpc/32: Set an IBAT covering up to _einittext during init

From: Christophe Leroy [ Upstream commit 2a0fb3c155c97c75176e557d61f8e66c1bd9b735 ] Always set an IBAT covering up to _einittext during init because when CONFIG_MODULES is not selected there is no reason to have an exception handler for kernel instruction TLB misses. It implies DBAT and IBAT ar

[PATCH AUTOSEL 5.18 23/39] powerpc/pseries/mobility: set NMI watchdog factor during an LPM

From: Laurent Dufour [ Upstream commit 118b1366930c8c833b8b36abef657f40d4e26610 ] During an LPM, while the memory transfer is in progress on the arrival side, some latencies are generated when accessing not yet transferred pages on the arrival side. Thus, the NMI watchdog may be triggered too fr

[PATCH AUTOSEL 5.18 22/39] powerpc/watchdog: introduce a NMI watchdog's factor

From: Laurent Dufour [ Upstream commit f5e74e836097d1004077390717d4bd95d4a2c27a ] Introduce a factor which would apply to the NMI watchdog timeout. This factor is a percentage added to the watchdog_tresh value. The value is set under the watchdog_mutex protection and lockup_detector_reconfigure

[PATCH AUTOSEL 5.18 03/39] KVM: PPC: Book3S HV: Fix "rm_exit" entry in debugfs timings

From: Fabiano Rosas [ Upstream commit 9981bace85d816ed8724ac46e49285e8488d29e6 ] At debugfs/kvm//vcpu0/timings we show how long each part of the code takes to run: $ cat /sys/kernel/debug/kvm/*-*/vcpu0/timings rm_entry: 123785 49398892 118 4898 rm_intr: 123780 6075890 22 390 rm_exit: 0 0 0 0

[PATCH AUTOSEL 5.18 02/39] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 5.19 43/48] powerpc/64: Init jump labels before parse_early_param()

From: Zhouyi Zhou [ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ] On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting wi

[PATCH AUTOSEL 5.19 35/48] powerpc/ioda/iommu/debugfs: Generate unique debugfs entries

From: Alexey Kardashevskiy [ Upstream commit d73b46c3c1449bf27f793b9d9ee86ed70c7a7163 ] The iommu_table::it_index is a LIOBN which is not initialized on PowerNV as it is not used except IOMMU debugfs where it is used for a node name. This initializes it_index witn a unique number to avoid warni

[PATCH AUTOSEL 5.19 32/48] powerpc/32: Don't always pass -mcpu=powerpc to the compiler

From: Christophe Leroy [ Upstream commit 446cda1b21d9a6b3697fe399c6a3a00ff4a285f5 ] Since commit 4bf4f42a2feb ("powerpc/kbuild: Set default generic machine type for 32-bit compile"), when building a 32 bits kernel with a bi-arch version of GCC, or when building a book3s/32 kernel, the option -mc

[PATCH AUTOSEL 5.19 31/48] powerpc/32: Set an IBAT covering up to _einittext during init

From: Christophe Leroy [ Upstream commit 2a0fb3c155c97c75176e557d61f8e66c1bd9b735 ] Always set an IBAT covering up to _einittext during init because when CONFIG_MODULES is not selected there is no reason to have an exception handler for kernel instruction TLB misses. It implies DBAT and IBAT ar

[PATCH AUTOSEL 5.19 30/48] powerpc/pseries/mobility: set NMI watchdog factor during an LPM

From: Laurent Dufour [ Upstream commit 118b1366930c8c833b8b36abef657f40d4e26610 ] During an LPM, while the memory transfer is in progress on the arrival side, some latencies are generated when accessing not yet transferred pages on the arrival side. Thus, the NMI watchdog may be triggered too fr

[PATCH AUTOSEL 5.19 29/48] powerpc/watchdog: introduce a NMI watchdog's factor

From: Laurent Dufour [ Upstream commit f5e74e836097d1004077390717d4bd95d4a2c27a ] Introduce a factor which would apply to the NMI watchdog timeout. This factor is a percentage added to the watchdog_tresh value. The value is set under the watchdog_mutex protection and lockup_detector_reconfigure

[PATCH AUTOSEL 5.19 04/48] KVM: PPC: Book3S HV: Fix "rm_exit" entry in debugfs timings

From: Fabiano Rosas [ Upstream commit 9981bace85d816ed8724ac46e49285e8488d29e6 ] At debugfs/kvm//vcpu0/timings we show how long each part of the code takes to run: $ cat /sys/kernel/debug/kvm/*-*/vcpu0/timings rm_entry: 123785 49398892 118 4898 rm_intr: 123780 6075890 22 390 rm_exit: 0 0 0 0

[PATCH AUTOSEL 5.19 03/48] tty: serial: Fix refcount leak bug in ucc_uart.c

From: Liang He [ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ] In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore. Acked-by: Timur Tabi Signed-off-by: Liang He Link: https://lore.kern

[PATCH AUTOSEL 4.9 4/7] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 4.14 6/9] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 4.19 08/13] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 5.4 12/21] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 5.10 19/31] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 5.15 29/46] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 5.18 36/56] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.

[PATCH AUTOSEL 5.19 40/64] cxl: Fix a memory leak in an error handling path

From: Christophe JAILLET [ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ] A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs(). Acked-by: Andrew Donnellan Signed-off-by: Christophe JAILLET Link: https://lore.kernel.