/** * io.h - DesignWare USB3 DRD IO Header * * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com * * Authors: Felipe Balbi , * Sebastian Andrzej Siewior * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 of * the License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef __DRIVERS_USB_DWC3_IO_H #define __DRIVERS_USB_DWC3_IO_H #include #include "trace.h" #include "debug.h" #include "core.h" static inline u32 dwc3_readl(void __iomem *base, u32 offset) { u32 value; /* * We requested the mem region starting from the Globals address * space, see dwc3_probe in core.c. * However, the offsets are given starting from xHCI address space. */ value = readl(base + offset - DWC3_GLOBALS_REGS_START); /* * When tracing we want to make it easy to find the correct address on * documentation, so we revert it back to the proper addresses, the * same way they are described on SNPS documentation */ trace_dwc3_readl(base - DWC3_GLOBALS_REGS_START, offset, value); return value; } static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value) { /* * We requested the mem region starting from the Globals address * space, see dwc3_probe in core.c. * However, the offsets are given starting from xHCI address space. */ writel(value, base + offset - DWC3_GLOBALS_REGS_START); /* * When tracing we want to make it easy to find the correct address on * documentation, so we revert it back to the proper addresses, the * same way they are described on SNPS documentation */ trace_dwc3_writel(base - DWC3_GLOBALS_REGS_START, offset, value); } #endif /* __DRIVERS_USB_DWC3_IO_H */ /net-next.git/commit/sound/soc/codecs/cs35l34.c?h=nds-private-remove&id=433e19cf33d34bb6751c874a9c00980552fe508c'>commitdiff
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authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /sound/soc/codecs/cs35l34.c
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/soc/codecs/cs35l34.c')