user/sven/linux.git/drivers/powercap, branch v5.15.141

powercap: RAPL: Fix CONFIG_IOSF_MBI dependency

2023-07-23T11:46:46Z

[ Upstream commit 4658fe81b3f8afe8adf37734ec5fe595d90415c6 ] After commit 3382388d7148 ("intel_rapl: abstract RAPL common code"), accessing to IOSF_MBI interface is done in the RAPL common code. Thus it is the CONFIG_INTEL_RAPL_CORE that has dependency of CONFIG_IOSF_MBI, while CONFIG_INTEL_RAPL_MSR does not. This problem was not exposed previously because all the previous RAPL common code users, aka, the RAPL MSR and MMIO I/F drivers, have CONFIG_IOSF_MBI selected. Fix the CONFIG_IOSF_MBI dependency in RAPL code. This also fixes a build time failure when the RAPL TPMI I/F driver is introduced without selecting CONFIG_IOSF_MBI. x86_64-linux-ld: vmlinux.o: in function `set_floor_freq_atom': intel_rapl_common.c:(.text+0x2dac9b8): undefined reference to `iosf_mbi_write' x86_64-linux-ld: intel_rapl_common.c:(.text+0x2daca66): undefined reference to `iosf_mbi_read' Reference to iosf_mbi.h is also removed from the RAPL MSR I/F driver. Fixes: 3382388d7148 ("intel_rapl: abstract RAPL common code") Reported-by: Arnd Bergmann Link: https://lore.kernel.org/all/20230601213246.3271412-1-arnd@kernel.org Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

powercap: fix possible name leak in powercap_register_zone()

2023-03-10T08:39:12Z

[ Upstream commit 1b6599f741a4525ca761ecde46e5885ff1e6ba58 ] In the error path after calling dev_set_name(), the device name is leaked. To fix this, calling dev_set_name() before device_register(), and call put_device() if it returns error. All the resources is released in powercap_release(), so it can return from powercap_register_zone() directly. Fixes: 75d2364ea0ca ("PowerCap: Add class driver") Signed-off-by: Yang Yingliang Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue

2022-10-26T10:35:30Z

[ Upstream commit 2d93540014387d1c73b9ccc4d7895320df66d01b ] When value < time_unit, the parameter of ilog2() will be zero and the return value is -1. u64(-1) is too large for shift exponent and then will trigger shift-out-of-bounds: shift exponent 18446744073709551615 is too large for 32-bit type 'int' Call Trace: rapl_compute_time_window_core rapl_write_data_raw set_time_window store_constraint_time_window_us Signed-off-by: Chao Qin Acked-by: Zhang Rui Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain

2022-10-26T10:34:25Z

commit 4c081324df5608b73428662ca54d5221ea03a6bd upstream. Intel Xeon servers used to use a fixed energy resolution (15.3uj) for Dram RAPL domain. But on SPR, Dram RAPL domain follows the standard energy resolution as described in MSR_RAPL_POWER_UNIT. Remove the SPR dram_domain_energy_unit quirk. Fixes: 2d798d9f5967 ("powercap: intel_rapl: add support for Sapphire Rapids") Signed-off-by: Zhang Rui Tested-by: Wang Wendy Cc: 5.9+ # 5.9+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

powercap: Add Power Limit4 support for Alder Lake SoC

2021-08-25T18:12:16Z

Add Power Limit4 support for Alder Lake SoC. Signed-off-by: Sumeet Pawnikar Acked-by: Zhang Rui Signed-off-by: Rafael J. Wysocki

powercap: intel_rapl: Replace deprecated CPU-hotplug functions

2021-08-04T18:13:46Z

The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Rafael J. Wysocki

powercap: Add Hygon Fam18h RAPL support

2021-03-18T18:42:23Z

Enable Hygon Fam18h RAPL support for the power capping framework. Signed-off-by: Pu Wen Signed-off-by: Rafael J. Wysocki

powercap/drivers/dtpm: Add the experimental label to the option description

2021-03-01T16:43:29Z

The DTPM framework will evolve in the next cycles. Let's add a temporary EXPERIMENTAL tag to the option so users will be aware the API may change over time. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

powercap/drivers/dtpm: Fix root node initialization

2021-03-01T16:43:29Z

The root node is not set to NULL when the dtpm root node is removed. Consequently, it is not possible to create a new root as it is already set. Set the root node to NULL when the last node is removed. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki

powercap: intel_rapl: Use topology interface in rapl_init_domains()

2021-02-12T15:53:01Z

It's not a good idea to access the phys_proc_id of cpuinfo directly. Use topology_physical_package_id(cpu) instead. Signed-off-by: Yunfeng Ye [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki