linux.git/arch/powerpc/platforms, branch v6.16

powerpc/vas: Return -EINVAL if the offset is non-zero in mmap()

2025-06-10T02:26:41+00:00

The user space calls mmap() to map VAS window paste address
and the kernel returns the complete mapped page for each
window. So return -EINVAL if non-zero is passed for offset
parameter to mmap().

See Documentation/arch/powerpc/vas-api.rst for mmap()
restrictions.

Co-developed-by: Jonathan Greental 
Signed-off-by: Jonathan Greental 
Reported-by: Jonathan Greental 
Fixes: dda44eb29c23 ("powerpc/vas: Add VAS user space API")
Signed-off-by: Haren Myneni 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250610021227.361980-2-maddy@linux.ibm.com

powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap

2025-06-10T02:14:27+00:00

memtrace mmap issue has an out of bounds issue. This patch fixes the by
checking that the requested mapping region size should stay within the
allocated region size.

Reported-by: Jonathan Greental 
Fixes: 08a022ad3dfa ("powerpc/powernv/memtrace: Allow mmaping trace buffers")
Signed-off-by: Ritesh Harjani (IBM) 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250610021227.361980-1-maddy@linux.ibm.com

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

Merge tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-05-27T15:07:32+00:00

Pull irq cleanups from Thomas Gleixner:
 "A set of cleanups for the generic interrupt subsystem:

   - Consolidate on one set of functions for the interrupt domain code
     to get rid of pointlessly duplicated code with only marginal
     different semantics.

   - Update the documentation accordingly and consolidate the coding
     style of the irqdomain header"

* tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  irqdomain: Consolidate coding style
  irqdomain: Fix kernel-doc and add it to Documentation
  Documentation: irqdomain: Update it
  Documentation: irq-domain.rst: Simple improvements
  Documentation: irq/concepts: Minor improvements
  Documentation: irq/concepts: Add commas and reflow
  irqdomain: Improve kernel-docs of functions
  irqdomain: Make struct irq_domain_info variables const
  irqdomain: Use irq_domain_instantiate()'s return value as initializers
  irqdomain: Drop irq_linear_revmap()
  pinctrl: keembay: Switch to irq_find_mapping()
  irqchip/armada-370-xp: Switch to irq_find_mapping()
  gpu: ipu-v3: Switch to irq_find_mapping()
  gpio: idt3243x: Switch to irq_find_mapping()
  sh: Switch to irq_find_mapping()
  powerpc: Switch to irq_find_mapping()
  irqdomain: Drop irq_domain_add_*() functions
  powerpc: Switch irq_domain_add_nomap() to use fwnode
  thermal: Switch to irq_domain_create_linear()
  soc: Switch to irq_domain_create_*()
  ...

Merge tag 'powerpc-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2025-05-26T21:38:57+00:00

Pull powerpc updates from Madhavan Srinivasan:

 - Support for dynamic preemption

 - Migrate powerpc boards GPIO driver to new setter API

 - Added new PMU for KVM host-wide measurement

 - Enhancement to htmdump driver to support more functions

 - Added character device for couple RTAS supported APIs

 - Minor fixes and cleanup

Thanks to Amit Machhiwal, Athira Rajeev, Bagas Sanjaya, Bartosz
Golaszewski, Christophe Leroy, Eddie James, Gaurav Batra, Gautam
Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Jiri Slaby
(SUSE), Linus Walleij, Michal Suchanek, Naveen N Rao (AMD), Nilay
Shroff, Ricardo B. Marlière, Ritesh Harjani (IBM), Sathvika Vasireddy,
Shrikanth Hegde, Stephen Rothwell, Sourabh Jain, Thorsten Blum, Vaibhav
Jain, Venkat Rao Bagalkote, and Viktor Malik.

* tag 'powerpc-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (52 commits)
  MAINTAINERS: powerpc: Remove myself as a reviewer
  powerpc/iommu: Use str_disabled_enabled() helper
  powerpc/powermac: Use str_enabled_disabled() and str_on_off() helpers
  powerpc/mm/fault: Use str_write_read() helper function
  powerpc: Replace strcpy() with strscpy() in proc_ppc64_init()
  powerpc/pseries/iommu: Fix kmemleak in TCE table userspace view
  powerpc/kernel: Fix ppc_save_regs inclusion in build
  powerpc: Transliterate author name and remove FIXME
  powerpc/pseries/htmdump: Include header file to get is_kvm_guest() definition
  KVM: PPC: Book3S HV: Fix IRQ map warnings with XICS on pSeries KVM Guest
  powerpc/8xx: Reduce alignment constraint for kernel memory
  powerpc/boot: Fix build with gcc 15
  powerpc/pseries/htmdump: Add documentation for H_HTM debugfs interface
  powerpc/pseries/htmdump: Add htm capabilities support to htmdump module
  powerpc/pseries/htmdump: Add htm flags support to htmdump module
  powerpc/pseries/htmdump: Add htm setup support to htmdump module
  powerpc/pseries/htmdump: Add htm info support to htmdump module
  powerpc/pseries/htmdump: Add htm status support to htmdump module
  powerpc/pseries/htmdump: Add htm start support to htmdump module
  powerpc/pseries/htmdump: Add htm configure support to htmdump module
  ...

powerpc: Switch to irq_find_mapping()

2025-05-16T19:06:12+00:00

irq_linear_revmap() is deprecated, so remove all its uses and supersede
them by an identical call to irq_find_mapping().

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Acked-by: Christophe Leroy  # for 8xx
Link: https://lore.kernel.org/all/20250319092951.37667-42-jirislaby@kernel.org

powerpc: Switch irq_domain_add_nomap() to use fwnode

2025-05-16T19:06:11+00:00

All irq_domain_add_*() functions are going away. PowerPC is the only
user of irq_domain_add_nomap() and there is no irq_domain_create_nomap()
complement.

Therefore, to align with the rest of the kernel, rename
irq_domain_add_nomap() to irq_domain_create_nomap() and accept a
fwnode_handle instead of a device_node.

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20250319092951.37667-40-jirislaby@kernel.org

powerpc: Switch to irq_domain_create_*()

2025-05-16T19:06:11+00:00

irq_domain_add_*() interfaces are going away as being obsolete now.
Switch to the preferred irq_domain_create_*() ones. Those differ in the
node parameter: They take more generic struct fwnode_handle instead of
struct device_node. Therefore, of_fwnode_handle() is added around the
original parameter.

Note some of the users can likely use dev->fwnode directly instead of
indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
guaranteed to be set for all, so this has to be investigated on case to
case basis (by people who can actually test with the HW).

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Christophe Leroy  # For 8xx
Link: https://lore.kernel.org/all/20250319092951.37667-33-jirislaby@kernel.org

powerpc: Switch to of_fwnode_handle()

2025-05-16T19:06:08+00:00

of_node_to_fwnode() is irqdomain's reimplementation of the "officially"
defined of_fwnode_handle(). The former is in the process of being
removed, so use the latter instead.

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20250319092951.37667-9-jirislaby@kernel.org

powerpc/powermac: Use str_enabled_disabled() and str_on_off() helpers

2025-05-15T04:32:18+00:00

Remove hard-coded strings by using the str_enabled_disabled() and
str_on_off() helper functions.

Signed-off-by: Thorsten Blum 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250117114625.64903-2-thorsten.blum@linux.dev