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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 /include/media/media-dev-allocator.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 'include/media/media-dev-allocator.h')
| -rw-r--r-- | include/media/media-dev-allocator.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/media/media-dev-allocator.h b/include/media/media-dev-allocator.h new file mode 100644 index 000000000..2ab54d426 --- /dev/null +++ b/include/media/media-dev-allocator.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * media-dev-allocator.h - Media Controller Device Allocator API + * + * Copyright (c) 2019 Shuah Khan <shuah@kernel.org> + * + * Credits: Suggested by Laurent Pinchart <laurent.pinchart@ideasonboard.com> + */ + +/* + * This file adds a global ref-counted Media Controller Device Instance API. + * A system wide global media device list is managed and each media device + * includes a kref count. The last put on the media device releases the media + * device instance. + */ + +#ifndef _MEDIA_DEV_ALLOCATOR_H +#define _MEDIA_DEV_ALLOCATOR_H + +struct usb_device; + +#if defined(CONFIG_MEDIA_CONTROLLER) && IS_ENABLED(CONFIG_USB) +/** + * media_device_usb_allocate() - Allocate and return struct &media device + * + * @udev: struct &usb_device pointer + * @module_name: should be filled with %KBUILD_MODNAME + * @owner: struct module pointer %THIS_MODULE for the driver. + * %THIS_MODULE is null for a built-in driver. + * It is safe even when %THIS_MODULE is null. + * + * This interface should be called to allocate a Media Device when multiple + * drivers share usb_device and the media device. This interface allocates + * &media_device structure and calls media_device_usb_init() to initialize + * it. + * + */ +struct media_device *media_device_usb_allocate(struct usb_device *udev, + const char *module_name, + struct module *owner); +/** + * media_device_delete() - Release media device. Calls kref_put(). + * + * @mdev: struct &media_device pointer + * @module_name: should be filled with %KBUILD_MODNAME + * @owner: struct module pointer %THIS_MODULE for the driver. + * %THIS_MODULE is null for a built-in driver. + * It is safe even when %THIS_MODULE is null. + * + * This interface should be called to put Media Device Instance kref. + */ +void media_device_delete(struct media_device *mdev, const char *module_name, + struct module *owner); +#else +static inline struct media_device *media_device_usb_allocate( + struct usb_device *udev, const char *module_name, + struct module *owner) + { return NULL; } +static inline void media_device_delete( + struct media_device *mdev, const char *module_name, + struct module *owner) { } +#endif /* CONFIG_MEDIA_CONTROLLER && CONFIG_USB */ +#endif /* _MEDIA_DEV_ALLOCATOR_H */ |
