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    Subject[PATCH 3.11 106/233] ALSA: Enable CONFIG_ZONE_DMA for smaller PCI DMA masks
    Date
    3.11.10.4 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Takashi Iwai <tiwai@suse.de>

    commit 80ab8eae70e51d578ebbeb228e0f7a562471b8b7 upstream.

    The PCI devices with DMA masks smaller than 32bit should enable
    CONFIG_ZONE_DMA. Since the recent change of page allocator, page
    allocations via dma_alloc_coherent() with the limited DMA mask bits
    may fail more frequently, ended up with no available buffers, when
    CONFIG_ZONE_DMA isn't enabled. With CONFIG_ZONE_DMA, the system has
    much more chance to obtain such pages.

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=68221
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
    ---
    sound/pci/Kconfig | 12 ++++++++++++
    1 file changed, 12 insertions(+)

    diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
    index fe6fa93..daac7c7 100644
    --- a/sound/pci/Kconfig
    +++ b/sound/pci/Kconfig
    @@ -30,6 +30,7 @@ config SND_ALS300
    select SND_PCM
    select SND_AC97_CODEC
    select SND_OPL3_LIB
    + select ZONE_DMA
    help
    Say 'Y' or 'M' to include support for Avance Logic ALS300/ALS300+

    @@ -54,6 +55,7 @@ config SND_ALI5451
    tristate "ALi M5451 PCI Audio Controller"
    select SND_MPU401_UART
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for the integrated AC97 sound
    device on motherboards using the ALi M5451 Audio Controller
    @@ -158,6 +160,7 @@ config SND_AZT3328
    select SND_PCM
    select SND_RAWMIDI
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for Aztech AZF3328 (PCI168)
    soundcards.
    @@ -463,6 +466,7 @@ config SND_EMU10K1
    select SND_HWDEP
    select SND_RAWMIDI
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y to include support for Sound Blaster PCI 512, Live!,
    Audigy and E-mu APS (partially supported) soundcards.
    @@ -478,6 +482,7 @@ config SND_EMU10K1X
    tristate "Emu10k1X (Dell OEM Version)"
    select SND_AC97_CODEC
    select SND_RAWMIDI
    + select ZONE_DMA
    help
    Say Y here to include support for the Dell OEM version of the
    Sound Blaster Live!.
    @@ -511,6 +516,7 @@ config SND_ES1938
    select SND_OPL3_LIB
    select SND_MPU401_UART
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on ESS Solo-1
    (ES1938, ES1946, ES1969) chips.
    @@ -522,6 +528,7 @@ config SND_ES1968
    tristate "ESS ES1968/1978 (Maestro-1/2/2E)"
    select SND_MPU401_UART
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on ESS Maestro
    1/2/2E chips.
    @@ -603,6 +610,7 @@ config SND_ICE1712
    select SND_MPU401_UART
    select SND_AC97_CODEC
    select BITREVERSE
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on the
    ICE1712 (Envy24) chip.
    @@ -690,6 +698,7 @@ config SND_LX6464ES
    config SND_MAESTRO3
    tristate "ESS Allegro/Maestro3"
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on ESS Maestro 3
    (Allegro) chips.
    @@ -786,6 +795,7 @@ config SND_SIS7019
    tristate "SiS 7019 Audio Accelerator"
    depends on X86 && !X86_64
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for the SiS 7019 Audio Accelerator.

    @@ -797,6 +807,7 @@ config SND_SONICVIBES
    select SND_OPL3_LIB
    select SND_MPU401_UART
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on the S3
    SonicVibes chip.
    @@ -808,6 +819,7 @@ config SND_TRIDENT
    tristate "Trident 4D-Wave DX/NX; SiS 7018"
    select SND_MPU401_UART
    select SND_AC97_CODEC
    + select ZONE_DMA
    help
    Say Y here to include support for soundcards based on Trident
    4D-Wave DX/NX or SiS 7018 chips.
    --
    1.8.3.2


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