/* * at91-pcm.h - ALSA PCM interface for the Atmel AT91 SoC. * * Copyright (C) 2005 SAN People * Copyright (C) 2008 Atmel * * Authors: Sedji Gaouaou * * Based on at91-pcm. by: * Frank Mandarino * Copyright 2006 Endrelia Technologies Inc. * * Based on pxa2xx-pcm.c by: * * Author: Nicolas Pitre * Created: Nov 30, 2004 * Copyright: (C) 2004 MontaVista Software, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _ATMEL_PCM_H #define _ATMEL_PCM_H #include #define ATMEL_SSC_DMABUF_SIZE (64 * 1024) /* * Registers and status bits that are required by the PCM driver. */ struct atmel_pdc_regs { unsigned int xpr; /* PDC recv/trans pointer */ unsigned int xcr; /* PDC recv/trans counter */ unsigned int xnpr; /* PDC next recv/trans pointer */ unsigned int xncr; /* PDC next recv/trans counter */ unsigned int ptcr; /* PDC transfer control */ }; struct atmel_ssc_mask { u32 ssc_enable; /* SSC recv/trans enable */ u32 ssc_disable; /* SSC recv/trans disable */ u32 ssc_error; /* SSC error conditions */ u32 ssc_endx; /* SSC ENDTX or ENDRX */ u32 ssc_endbuf; /* SSC TXBUFE or RXBUFF */ u32 pdc_enable; /* PDC recv/trans enable */ u32 pdc_disable; /* PDC recv/trans disable */ }; /* * This structure, shared between the PCM driver and the interface, * contains all information required by the PCM driver to perform the * PDC DMA operation. All fields except dma_intr_handler() are initialized * by the interface. The dma_intr_handler() pointer is set by the PCM * driver and called by the interface SSC interrupt handler if it is * non-NULL. */ struct atmel_pcm_dma_params { char *name; /* stream identifier */ int pdc_xfer_size; /* PDC counter increment in bytes */ struct ssc_device *ssc; /* SSC device for stream */ struct atmel_pdc_regs *pdc; /* PDC receive or transmit registers */ struct atmel_ssc_mask *mask; /* SSC & PDC status bits */ struct snd_pcm_substream *substream; void (*dma_intr_handler)(u32, struct snd_pcm_substream *); }; /* * SSC register access (since ssc_writel() / ssc_readl() require literal name) */ #define ssc_readx(base, reg) (__raw_readl((base) + (reg))) #define ssc_writex(base, reg, value) __raw_writel((value), (base) + (reg)) #if defined(CONFIG_SND_ATMEL_SOC_PDC) || \ defined(CONFIG_SND_ATMEL_SOC_PDC_MODULE) int atmel_pcm_pdc_platform_register(struct device *dev); void atmel_pcm_pdc_platform_unregister(struct device *dev); #else static inline int atmel_pcm_pdc_platform_register(struct device *dev) { return 0; } static inline void atmel_pcm_pdc_platform_unregister(struct device *dev) { } #endif #if defined(CONFIG_SND_ATMEL_SOC_DMA) || \ defined(CONFIG_SND_ATMEL_SOC_DMA_MODULE) int atmel_pcm_dma_platform_register(struct device *dev); void atmel_pcm_dma_platform_unregister(struct device *dev); #else static inline int atmel_pcm_dma_platform_register(struct device *dev) { return 0; } static inline void atmel_pcm_dma_platform_unregister(struct device *dev) { } #endif #endif /* _ATMEL_PCM_H */ nput type='hidden' name='id' value='0b3589be9b98994ce3d5aeca52445d1f5627c4ba'/>
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authorPeter Zijlstra <peterz@infradead.org>2017-01-26 23:15:08 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-30 11:41:26 +0100
commit0b3589be9b98994ce3d5aeca52445d1f5627c4ba (patch)
tree85d0d9b3ac902af2c938b19a566884caf8d00323 /sound/pci/oxygen/virtuoso.c
parenta76a82a3e38c8d3fb6499e3dfaeb0949241ab588 (diff)
perf/core: Fix PERF_RECORD_MMAP2 prot/flags for anonymous memory
Andres reported that MMAP2 records for anonymous memory always have their protection field 0. Turns out, someone daft put the prot/flags generation code in the file branch, leaving them unset for anonymous memory. Reported-by: Andres Freund <andres@anarazel.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Don Zickus <dzickus@redhat.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: acme@kernel.org Cc: anton@ozlabs.org Cc: namhyung@kernel.org Cc: stable@vger.kernel.org # v3.16+ Fixes: f972eb63b100 ("perf: Pass protection and flags bits through mmap2 interface") Link: http://lkml.kernel.org/r/20170126221508.GF6536@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/pci/oxygen/virtuoso.c')