Browse Source

ALSA: pcm: use the same dma mmap codepath both for arm and arm64

commit a011e213f3 upstream.

This avoids following kernel crash when try to playback on arm64

[  107.497203] [<ffffffc00046b310>] snd_pcm_mmap_data_fault+0x90/0xd4
[  107.503405] [<ffffffc0001541ac>] __do_fault+0xb0/0x498
[  107.508565] [<ffffffc0001576a0>] handle_mm_fault+0x224/0x7b0
[  107.514246] [<ffffffc000092640>] do_page_fault+0x11c/0x310
[  107.519738] [<ffffffc000081100>] do_mem_abort+0x38/0x98

Tested: backported to 3.14 and tried to playback on arm64 machine

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
isee-imx_3.14.28.y
Anatol Pomozov 6 years ago
committed by Greg Kroah-Hartman
parent
commit
4f5de92148
1 changed files with 1 additions and 1 deletions
  1. +1
    -1
      sound/core/pcm_native.c

+ 1
- 1
sound/core/pcm_native.c View File

@ -3189,7 +3189,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = {
#ifndef ARCH_HAS_DMA_MMAP_COHERENT
/* This should be defined / handled globally! */
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
#define ARCH_HAS_DMA_MMAP_COHERENT
#endif
#endif


Loading…
Cancel
Save