/* * u_os_desc.h * * Utility definitions for "OS Descriptors" support * * Copyright (c) 2014 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Author: Andrzej Pietrasiewicz * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __U_OS_DESC_H__ #define __U_OS_DESC_H__ #include #include #define USB_EXT_PROP_DW_SIZE 0 #define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4 #define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8 #define USB_EXT_PROP_B_PROPERTY_NAME 10 #define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10 #define USB_EXT_PROP_B_PROPERTY_DATA 14 #define USB_EXT_PROP_RESERVED 0 #define USB_EXT_PROP_UNICODE 1 #define USB_EXT_PROP_UNICODE_ENV 2 #define USB_EXT_PROP_BINARY 3 #define USB_EXT_PROP_LE32 4 #define USB_EXT_PROP_BE32 5 #define USB_EXT_PROP_UNICODE_LINK 6 #define USB_EXT_PROP_UNICODE_MULTI 7 static inline u8 *__usb_ext_prop_ptr(u8 *buf, size_t offset) { return buf + offset; } static inline u8 *usb_ext_prop_size_ptr(u8 *buf) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_SIZE); } static inline u8 *usb_ext_prop_type_ptr(u8 *buf) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_PROPERTY_DATA_TYPE); } static inline u8 *usb_ext_prop_name_len_ptr(u8 *buf) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_W_PROPERTY_NAME_LENGTH); } static inline u8 *usb_ext_prop_name_ptr(u8 *buf) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_NAME); } static inline u8 *usb_ext_prop_data_len_ptr(u8 *buf, size_t off) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + off); } static inline u8 *usb_ext_prop_data_ptr(u8 *buf, size_t off) { return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_DATA + off); } static inline void usb_ext_prop_put_size(u8 *buf, int dw_size) { put_unaligned_le32(dw_size, usb_ext_prop_size_ptr(buf)); } static inline void usb_ext_prop_put_type(u8 *buf, int type) { put_unaligned_le32(type, usb_ext_prop_type_ptr(buf)); } static inline int usb_ext_prop_put_name(u8 *buf, const char *name, int pnl) { int result; put_unaligned_le16(pnl, usb_ext_prop_name_len_ptr(buf)); result = utf8s_to_utf16s(name, strlen(name), UTF16_LITTLE_ENDIAN, (wchar_t *) usb_ext_prop_name_ptr(buf), pnl - 2); if (result < 0) return result; put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_NAME + pnl - 2]); return pnl; } static inline void usb_ext_prop_put_binary(u8 *buf, int pnl, const u8 *data, int data_len) { put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl)); memcpy(usb_ext_prop_data_ptr(buf, pnl), data, data_len); } static inline int usb_ext_prop_put_unicode(u8 *buf, int pnl, const char *string, int data_len) { int result; put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl)); result = utf8s_to_utf16s(string, data_len >> 1, UTF16_LITTLE_ENDIAN, (wchar_t *) usb_ext_prop_data_ptr(buf, pnl), data_len - 2); if (result < 0) return result; put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl + data_len - 2]); return data_len; } #endif /* __U_OS_DESC_H__ */
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/isa/adlib.c
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/isa/adlib.c')