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| author | Peter Zubaj <pzubaj@marticonet.sk> | 2015-04-28 21:57:29 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-08-07 00:32:08 +0100 |
| commit | 22df023245f6eac89753ac2602bdfc25d0ae26ec (patch) | |
| tree | 442beeedfcf0c776858b5ae9f8e4b6a5dc31b5e0 /include | |
| parent | f696aa6f0c43ba1c180b28e4e895ef005092d331 (diff) | |
| download | kernel_samsung_smdk4412-22df023245f6eac89753ac2602bdfc25d0ae26ec.zip kernel_samsung_smdk4412-22df023245f6eac89753ac2602bdfc25d0ae26ec.tar.gz kernel_samsung_smdk4412-22df023245f6eac89753ac2602bdfc25d0ae26ec.tar.bz2 | |
ALSA: emu10k1: Emu10k2 32 bit DMA mode
commit 7241ea558c6715501e777396b5fc312c372e11d9 upstream.
Looks like audigy emu10k2 (probably emu10k1 - sb live too) support two
modes for DMA. Second mode is useful for 64 bit os with more then 2 GB
of ram (fixes problems with big soundfont loading)
1) 32MB from 2 GB address space using 8192 pages (used now as default)
2) 16MB from 4 GB address space using 4096 pages
Mode is set using HCFG_EXPANDED_MEM flag in HCFG register.
Also format of emu10k2 page table is then different.
Signed-off-by: Peter Zubaj <pzubaj@marticonet.sk>
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/emu10k1.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 4f865df..7ee55e3 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -43,7 +43,8 @@ #define EMUPAGESIZE 4096 #define MAXREQVOICES 8 -#define MAXPAGES 8192 +#define MAXPAGES0 4096 /* 32 bit mode */ +#define MAXPAGES1 8192 /* 31 bit mode */ #define RESERVED 0 #define NUM_MIDI 16 #define NUM_G 64 /* use all channels */ @@ -52,8 +53,7 @@ /* FIXME? - according to the OSS driver the EMU10K1 needs a 29 bit DMA mask */ #define EMU10K1_DMA_MASK 0x7fffffffUL /* 31bit */ -#define AUDIGY_DMA_MASK 0x7fffffffUL /* 31bit FIXME - 32 should work? */ - /* See ALSA bug #1276 - rlrevell */ +#define AUDIGY_DMA_MASK 0xffffffffUL /* 32bit mode */ #define TMEMSIZE 256*1024 #define TMEMSIZEREG 4 @@ -470,8 +470,11 @@ #define MAPB 0x0d /* Cache map B */ -#define MAP_PTE_MASK 0xffffe000 /* The 19 MSBs of the PTE indexed by the PTI */ -#define MAP_PTI_MASK 0x00001fff /* The 13 bit index to one of the 8192 PTE dwords */ +#define MAP_PTE_MASK0 0xfffff000 /* The 20 MSBs of the PTE indexed by the PTI */ +#define MAP_PTI_MASK0 0x00000fff /* The 12 bit index to one of the 4096 PTE dwords */ + +#define MAP_PTE_MASK1 0xffffe000 /* The 19 MSBs of the PTE indexed by the PTI */ +#define MAP_PTI_MASK1 0x00001fff /* The 13 bit index to one of the 8192 PTE dwords */ /* 0x0e, 0x0f: Not used */ @@ -1708,6 +1711,7 @@ struct snd_emu10k1 { unsigned short model; /* subsystem id */ unsigned int card_type; /* EMU10K1_CARD_* */ unsigned int ecard_ctrl; /* ecard control bits */ + unsigned int address_mode; /* address mode */ unsigned long dma_mask; /* PCI DMA mask */ unsigned int delay_pcm_irq; /* in samples */ int max_cache_pages; /* max memory size / PAGE_SIZE */ |