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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 17:29:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 17:29:04 -0800
commit208eed95fc710827b100266c9450ae84d46727bd (patch)
tree9ae20a051b03bcd4ad677bb0f9dffba8c9699336 /arch/x86/kernel/cpu/intel_epb.c
parent66a1025f7f0bc00404ec6357af68815c70dadae2 (diff)
parent4b1e81570144f03521482f7659fee060d8f63481 (diff)
Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann: "This is the first half of the driver changes: - A treewide interface change to the "syscore" operations for power management, as a preparation for future Tegra specific changes - Reset controller updates with added drivers for LAN969x, eic770 and RZ/G3S SoCs - Protection of system controller registers on Renesas and Google SoCs, to prevent trivially triggering a system crash from e.g. debugfs access - soc_device identification updates on Nvidia, Exynos and Mediatek - debugfs support in the ST STM32 firewall driver - Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI - Cleanups for memory controller support on Nvidia and Renesas" * tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits) memory: tegra186-emc: Fix missing put_bpmp Documentation: reset: Remove reset_controller_add_lookup() reset: fix BIT macro reference reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe reset: th1520: Support reset controllers in more subsystems reset: th1520: Prepare for supporting multiple controllers dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets reset: remove legacy reset lookup code clk: davinci: psc: drop unused reset lookup reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support reset: eswin: Add eic7700 reset driver dt-bindings: reset: eswin: Documentation for eic7700 SoC reset: sparx5: add LAN969x support dt-bindings: reset: microchip: Add LAN969x support soc: rockchip: grf: Add select correct PWM implementation on RK3368 soc/tegra: pmc: Add USB wake events for Tegra234 amba: tegra-ahb: Fix device leak on SMMU enable ...
Diffstat (limited to 'arch/x86/kernel/cpu/intel_epb.c')
-rw-r--r--arch/x86/kernel/cpu/intel_epb.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/intel_epb.c b/arch/x86/kernel/cpu/intel_epb.c
index bc7671f920a7..2c56f8730f59 100644
--- a/arch/x86/kernel/cpu/intel_epb.c
+++ b/arch/x86/kernel/cpu/intel_epb.c
@@ -75,7 +75,7 @@ static u8 energ_perf_values[] = {
[EPB_INDEX_POWERSAVE] = ENERGY_PERF_BIAS_POWERSAVE,
};
-static int intel_epb_save(void)
+static int intel_epb_save(void *data)
{
u64 epb;
@@ -89,7 +89,7 @@ static int intel_epb_save(void)
return 0;
}
-static void intel_epb_restore(void)
+static void intel_epb_restore(void *data)
{
u64 val = this_cpu_read(saved_epb);
u64 epb;
@@ -114,11 +114,15 @@ static void intel_epb_restore(void)
wrmsrq(MSR_IA32_ENERGY_PERF_BIAS, (epb & ~EPB_MASK) | val);
}
-static struct syscore_ops intel_epb_syscore_ops = {
+static const struct syscore_ops intel_epb_syscore_ops = {
.suspend = intel_epb_save,
.resume = intel_epb_restore,
};
+static struct syscore intel_epb_syscore = {
+ .ops = &intel_epb_syscore_ops,
+};
+
static const char * const energy_perf_strings[] = {
[EPB_INDEX_PERFORMANCE] = "performance",
[EPB_INDEX_BALANCE_PERFORMANCE] = "balance-performance",
@@ -185,7 +189,7 @@ static int intel_epb_online(unsigned int cpu)
{
struct device *cpu_dev = get_cpu_device(cpu);
- intel_epb_restore();
+ intel_epb_restore(NULL);
if (!cpuhp_tasks_frozen)
sysfs_merge_group(&cpu_dev->kobj, &intel_epb_attr_group);
@@ -199,7 +203,7 @@ static int intel_epb_offline(unsigned int cpu)
if (!cpuhp_tasks_frozen)
sysfs_unmerge_group(&cpu_dev->kobj, &intel_epb_attr_group);
- intel_epb_save();
+ intel_epb_save(NULL);
return 0;
}
@@ -230,7 +234,7 @@ static __init int intel_epb_init(void)
if (ret < 0)
goto err_out_online;
- register_syscore_ops(&intel_epb_syscore_ops);
+ register_syscore(&intel_epb_syscore);
return 0;
err_out_online: