/* * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved. * Copyright (c) 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Cisco Systems. All rights reserved. * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ #ifndef NES_ABI_USER_H #define NES_ABI_USER_H #include #define NES_ABI_USERSPACE_VER 2 #define NES_ABI_KERNEL_VER 2 /* * Make sure that all structs defined in this file remain laid out so * that they pack the same way on 32-bit and 64-bit architectures (to * avoid incompatibility between 32-bit userspace and 64-bit kernels). * In particular do not use pointer types -- pass pointers in __u64 * instead. */ struct nes_alloc_ucontext_req { __u32 reserved32; __u8 userspace_ver; __u8 reserved8[3]; }; struct nes_alloc_ucontext_resp { __u32 max_pds; /* maximum pds allowed for this user process */ __u32 max_qps; /* maximum qps allowed for this user process */ __u32 wq_size; /* size of the WQs (sq+rq) allocated to the mmaped area */ __u8 virtwq; /* flag to indicate if virtual WQ are to be used or not */ __u8 kernel_ver; __u8 reserved[2]; }; struct nes_alloc_pd_resp { __u32 pd_id; __u32 mmap_db_index; }; struct nes_create_cq_req { __u64 user_cq_buffer; __u32 mcrqf; __u8 reserved[4]; }; struct nes_create_qp_req { __u64 user_wqe_buffers; __u64 user_qp_buffer; }; enum iwnes_memreg_type { IWNES_MEMREG_TYPE_MEM = 0x0000, IWNES_MEMREG_TYPE_QP = 0x0001, IWNES_MEMREG_TYPE_CQ = 0x0002, IWNES_MEMREG_TYPE_MW = 0x0003, IWNES_MEMREG_TYPE_FMR = 0x0004, IWNES_MEMREG_TYPE_FMEM = 0x0005, }; struct nes_mem_reg_req { __u32 reg_type; /* indicates if id is memory, QP or CQ */ __u32 reserved; }; struct nes_create_cq_resp { __u32 cq_id; __u32 cq_size; __u32 mmap_db_index; __u32 reserved; }; struct nes_create_qp_resp { __u32 qp_id; __u32 actual_sq_size; __u32 actual_rq_size; __u32 mmap_sq_db_index; __u32 mmap_rq_db_index; __u32 nes_drv_opt; }; #endif /* NES_ABI_USER_H */ a>/uvc_video.c
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authorBorislav Petkov <bp@suse.de>2017-01-20 21:29:40 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-23 09:39:55 +0100
commitc26665ab5c49ad3e142e0f054ca3204f259ba09c (patch)
tree3bab11918e18e9d25ef7544dba05cdf39d1abec5 /drivers/usb/gadget/function/uvc_video.c
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
x86/microcode/intel: Drop stashed AP patch pointer optimization
This was meant to save us the scanning of the microcode containter in the initrd since the first AP had already done that but it can also hurt us: Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for example) which updates the microcode on the BSP but since the microcode engine is shared between the two threads, the update on CPU1 doesn't happen because it has already happened on CPU0 and we don't find a newer microcode revision on CPU1. Which doesn't set the intel_ucode_patch pointer and at initrd jettisoning time we don't save the microcode patch for later application. Now, when we suspend to RAM, the loaded microcode gets cleared so we need to reload but there's no patch saved in the cache. Removing the optimization fixes this issue and all is fine and dandy. Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading") Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/usb/gadget/function/uvc_video.c')