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| author | Dapeng Mi <dapeng1.mi@linux.intel.com> | 2026-09-17 09:52:33 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-22 11:37:46 +0200 |
| commit | 0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch) | |
| tree | 531306c2299f9a269f0a986e29f17ba972180104 /drivers/gpio/gpiolib-shared.h | |
| download | linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip | |
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy
Offcore Response events, but it still exposes the inherited
offcore_rsp PMU attribute for programming the corresponding MSR data.
Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface
matches the underlying event name and avoids user & tooling confusion.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
Diffstat (limited to 'drivers/gpio/gpiolib-shared.h')
| -rw-r--r-- | drivers/gpio/gpiolib-shared.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-shared.h b/drivers/gpio/gpiolib-shared.h new file mode 100644 index 000000000..618756f6c --- /dev/null +++ b/drivers/gpio/gpiolib-shared.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __LINUX_GPIO_SHARED_H +#define __LINUX_GPIO_SHARED_H + +#include <linux/mutex.h> + +struct gpio_device; +struct gpio_desc; +struct device; +struct fwnode_handle; + +#if IS_ENABLED(CONFIG_GPIO_SHARED) + +int gpiochip_setup_shared(struct gpio_chip *gc); +void gpio_device_teardown_shared(struct gpio_device *gdev); +int gpio_shared_add_proxy_lookup(struct device *consumer, + struct fwnode_handle *fwnode, + const char *con_id, unsigned long lflags); + +#else + +static inline int gpiochip_setup_shared(struct gpio_chip *gc) +{ + return 0; +} + +static inline void gpio_device_teardown_shared(struct gpio_device *gdev) { } + +static inline int gpio_shared_add_proxy_lookup(struct device *consumer, + struct fwnode_handle *fwnode, + const char *con_id, + unsigned long lflags) +{ + return 0; +} + +#endif /* CONFIG_GPIO_SHARED */ + +struct gpio_shared_desc { + struct gpio_desc *desc; + unsigned long cfg; + unsigned int usecnt; + unsigned int votecnt; + int def_val; + struct mutex mutex; /* serializes all proxy operations on this descriptor */ +}; + +struct gpio_shared_desc *devm_gpiod_shared_get(struct device *dev); + +#endif /* __LINUX_GPIO_SHARED_H */ |