diff options
Diffstat (limited to 'arch/sh/drivers/dma')
| -rw-r--r-- | arch/sh/drivers/dma/Kconfig | 20 | ||||
| -rw-r--r-- | arch/sh/drivers/dma/dma-api.c | 7 |
2 files changed, 6 insertions, 21 deletions
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 99935f9daf4b..ee711431e504 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -5,12 +5,13 @@ config SH_DMA_API config SH_DMA bool "SuperH on-chip DMA controller (DMAC) support" + depends on CPU_SH3 || CPU_SH4 select SH_DMA_API default n config NR_ONCHIP_DMA_CHANNELS + int depends on SH_DMA - int "Number of on-chip DMAC channels" default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R default "12" if CPU_SUBTYPE_SH7780 default "4" @@ -36,23 +37,6 @@ config NR_DMA_CHANNELS support. Setting this to a higher value allows for cascading DMACs with additional channels. -config DMA_PAGE_OPS - bool "Use DMAC for page copy/clear" - depends on SH_DMA && BROKEN - help - Selecting this option will use a dual-address mode configured channel - in the SH DMAC for copy_page()/clear_page(). Primarily a performance - hack. - -config DMA_PAGE_OPS_CHANNEL - depends on DMA_PAGE_OPS - int "DMA channel for sh memory-manager page copy/clear" - default "3" - help - This allows the specification of the dual address dma channel, - in case channel 3 is unavailable. On the SH4, channels 1,2, and 3 - are dual-address capable. - config SH_DMABRG bool "SH7760 DMABRG support" depends on CPU_SUBTYPE_SH7760 diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c index cf8e11994330..76ed816d9a24 100644 --- a/arch/sh/drivers/dma/dma-api.c +++ b/arch/sh/drivers/dma/dma-api.c @@ -31,8 +31,8 @@ struct dma_info *get_dma_info(unsigned int chan) * the channel is. */ list_for_each_entry(info, ®istered_dmac_list, list) { - if ((chan < info->first_channel_nr) || - (chan >= info->first_channel_nr + info->nr_channels)) + if ((chan < info->first_vchannel_nr) || + (chan >= info->first_vchannel_nr + info->nr_channels)) continue; return info; @@ -82,7 +82,7 @@ struct dma_channel *get_dma_channel(unsigned int chan) for (i = 0; i < info->nr_channels; i++) { channel = &info->channels[i]; - if (channel->chan == chan) + if (channel->vchan == chan) return channel; } @@ -369,6 +369,7 @@ int register_dmac(struct dma_info *info) } total_channels = get_nr_channels(); + info->first_vchannel_nr = total_channels; for (i = 0; i < info->nr_channels; i++) { struct dma_channel *chan = &info->channels[i]; |