wireguard-linux/drivers/perf/hisilicon, branch stable

Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

2026-08-20T18:41:46Z

Pull bitmap updates from Yury Norov: "The usual set of fixes, cleanups and performance improvements together with a couple of new tests: - bitmap_find_next_zero_area_off() optimization (Sunyi) - bitmap_find_next_zero_area_off(): return size when no zero area is found (Yury) - bitmap vs IDA vs Maple Tree performance test (Yury) - get rid of cpumap_print_to_pagebuf() (Yury) - use nr_node_ids in __nodemask_pr_numnodes() (Li RongQing) - bitops: make the *_bit_le functions use unsigned long (Benjamin) - bitmap scatter & gather test fix (Christophe) - use __ASSEMBLER__ in bitmap header files (Thomas)" * tag 'bitmap-for-7.3' of https://github.com/norov/linux: (25 commits) lib: test bitmap vs IDA vs Maple Tree performance for region allocations bitmap: Return size when no zero area is found media: s5p-mfc: Treat bitmap size as allocation failure crypto: ccp: Treat bitmap size as allocation failure powerpc/msi: Treat bitmap size as allocation failure ARM: dma-mapping: Treat bitmap size as allocation failure bitmap: drop bitmap_next_set_region() nodemask: reduce bitmap width to nr_node_ids in __nodemask_pr_numnodes() bitmap: Properly initialise destination bitmap for scatter & gather test lib/bitmap-str: get rid of cpumap_print_to_pagebuf() perf: Use sysfs_emit() for cpumask show callbacks PCI/sysfs: Use sysfs_emit() for cpumask show callbacks RDMA/hfi1: Use sysfs_emit() for cpumask show helper hwtracing: hisi_ptt: Use sysfs_emit() for cpumask show fpga: dfl-fme-perf: Use sysfs_emit() for cpumask show devfreq: Use sysfs_emit() for cpumask show callbacks cpu: Use sysfs_emit() for cpumask show callback x86/events: Use sysfs_emit() for cpumask show callbacks powerpc: Use sysfs_emit() for cpumask show callbacks arm: Use sysfs_emit() for cpumask show callbacks ...

drivers/perf: hisi: Remove redundant dev_err()/dev_err_probe()

2026-08-04T13:30:03Z

Since commit 55b48e23f5c4 ("genirq/devres: Add error handling in devm_request_*_irq()"), devm_request_irq() automatically logs detailed error messages on failure. Remove the now-redundant driver-specific dev_err() and dev_err_probe() calls. Signed-off-by: Pan Chuang Acked-by: Yushan Wang Signed-off-by: Will Deacon

perf: Use sysfs_emit() for cpumask show callbacks

2026-07-22T19:38:37Z

These callbacks are sysfs show paths. Use sysfs_emit() and cpumask_pr_args() to emit the masks. This prepares for removing cpumap_print_to_pagebuf(). Link: https://lore.kernel.org/all/akANJ-AT7nHpRMq-@yury/ Acked-by: Robin Murphy Signed-off-by: Yury Norov

Replace by more specific (c files)

2026-07-03T05:38:17Z

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

drivers/perf: hisi: Add tt_core_deprecated for compatibility

2025-09-25T12:51:59Z

Previously tt_core is defined as config1:0-7 which may not cover all the CPUs sharing L3C on platforms with more than 8 CPUs in a L3C. In order to support such platforms extend tt_core to 16 bits, since no spare space in config1, tt_core was moved to config2:0-15. Though linux expects the users to retrieve the control encoding from sysfs first for each option, it's possible if user doesn't follow this and hardcoded tt_core in config1. So add an option tt_core_deprecated for config1:0-7 for backward compatibility. Signed-off-by: Yicong Yang Signed-off-by: Will Deacon

drivers/perf: hisi: Add support for L3C PMU v3

2025-09-22T12:14:38Z

This patch adds support for L3C PMU v3. The v3 L3C PMU supports an extended events space which can be controlled in up to 2 extra address spaces with separate overflow interrupts. The layout of the control/event registers are kept the same. The extended events with original ones together cover the monitoring job of all transactions on L3C. The extended events is specified with `ext=[1|2]` option for the driver to distinguish, like below: perf stat -e hisi_sccl0_l3c0_0/event=,ext=1/ Currently only event option using config bit [7, 0]. There's still plenty unused space. Make ext using config [16, 17] and reserve bit [15, 8] for event option for future extension. With the capability of extra counters, number of counters for HiSilicon uncore PMU could reach up to 24, the usedmap is extended accordingly. The hw_perf_event::event_base is initialized to the base MMIO address of the event and will be used for later control, overflow handling and counts readout. We still make use of the Uncore PMU framework for handling the events and interrupt migration on CPU hotplug. The framework's cpuhp callback will handle the event migration and interrupt migration of orginial event, if PMU supports extended events then the interrupt of extended events is migrated to the same CPU choosed by the framework. A new HID of HISI0215 is used for this version of L3C PMU. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Co-developed-by: Yushan Wang Signed-off-by: Yushan Wang Signed-off-by: Will Deacon

drivers/perf: hisi: Refactor the event configuration of L3C PMU

2025-09-22T12:14:38Z

The event register is configured using hisi_pmu::base directly since only one address space is supported for L3C PMU. We need to extend if events configuration locates in different address space. In order to make preparation for such hardware, extract the event register configuration to separate function using hw_perf_event::event_base as each event's base address. Implement a private hisi_uncore_ops::get_event_idx() callback for initialize the event_base besides get the hardware index. No functional changes intended. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Signed-off-by: Yushan Wang Signed-off-by: Will Deacon

drivers/perf: hisi: Extend the field of tt_core

2025-09-22T12:14:37Z

Currently the tt_core's using config1's bit [7, 0] and can not be extended. For some platforms there's more the 8 CPUs sharing the L3 cache. So make tt_core use config2's bit [15, 0] and the remaining bits in config2 is reserved for extension. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Signed-off-by: Yushan Wang Reviewed-by: Jonathan Cameron Signed-off-by: Will Deacon

drivers/perf: hisi: Extract the event filter check of L3C PMU

2025-09-22T12:14:37Z

L3C PMU has 4 filter options which are sharing perf_event_attr::config1. Driver will check config1 to see whether a certain event has a filter setting. It'll be incorrect if we make use of other bits in config1 for non-filter options. So check whether each filter options are set directly in a separate function instead. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Signed-off-by: Yushan Wang Reviewed-by: Jonathan Cameron Signed-off-by: Will Deacon

drivers/perf: hisi: Simplify the probe process of each L3C PMU version

2025-09-22T12:14:37Z

Version 1 and 2 of L3C PMU also use different HID. Make use of struct acpi_device_id::driver_data for version specific information rather than judge the version register. This will help to simplify the probe process and also a bit easier for extension. Acked-by: Jonathan Cameron Signed-off-by: Yicong Yang Signed-off-by: Yushan Wang Reviewed-by: Jonathan Cameron Signed-off-by: Will Deacon