linux-kernel - Re: [PATCH] ALSA: ctxfi: Bump playback substreams to 256

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Message-ID: <s5hk4a3p5h2.wl%tiwai@suse.de>
Date:	Wed, 24 Aug 2011 10:40:41 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Maarten Lankhorst <m.b.lankhorst@...il.com>
Cc:	alsa-devel@...a-project.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ALSA: ctxfi: Bump playback substreams to 256

At Wed, 24 Aug 2011 00:48:59 +0200,
Maarten Lankhorst wrote:
> 
> There are references in the code to 256 sources, so I tested it with 256 aplays,
> of which the first and last with real data and the rest playing /dev/zero .
> 
> Also increase amount of page tables, so the default aplay size works.
> 
> Signed-off-by: Maarten Lankhorst <m.b.lankhorst@...il.com>

Applied now.  Thanks.


Takashi

> ---
> diff --git a/sound/pci/ctxfi/ctpcm.c b/sound/pci/ctxfi/ctpcm.c
> index 457d211..2c86226 100644
> --- a/sound/pci/ctxfi/ctpcm.c
> +++ b/sound/pci/ctxfi/ctpcm.c
> @@ -404,7 +404,7 @@ int ct_alsa_pcm_create(struct ct_atc *atc,
>  	int err;
>  	int playback_count, capture_count;
>  
> -	playback_count = (IEC958 == device) ? 1 : 8;
> +	playback_count = (IEC958 == device) ? 1 : 256;
>  	capture_count = (FRONT == device) ? 1 : 0;
>  	err = snd_pcm_new(atc->card, "ctxfi", device,
>  			  playback_count, capture_count, &pcm);
> diff --git a/sound/pci/ctxfi/ctsrc.c b/sound/pci/ctxfi/ctsrc.c
> index c749fa7..e134b3a 100644
> --- a/sound/pci/ctxfi/ctsrc.c
> +++ b/sound/pci/ctxfi/ctsrc.c
> @@ -20,7 +20,7 @@
>  #include "cthardware.h"
>  #include <linux/slab.h>
>  
> -#define SRC_RESOURCE_NUM	64
> +#define SRC_RESOURCE_NUM	256
>  #define SRCIMP_RESOURCE_NUM	256
>  
>  static unsigned int conj_mask;
> diff --git a/sound/pci/ctxfi/ctvmem.h b/sound/pci/ctxfi/ctvmem.h
> index b23adfc..e6da60e 100644
> --- a/sound/pci/ctxfi/ctvmem.h
> +++ b/sound/pci/ctxfi/ctvmem.h
> @@ -18,7 +18,7 @@
>  #ifndef CTVMEM_H
>  #define CTVMEM_H
>  
> -#define CT_PTP_NUM	1	/* num of device page table pages */
> +#define CT_PTP_NUM	4	/* num of device page table pages */
>  
>  #include <linux/mutex.h>
>  #include <linux/list.h>
> 
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