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Groups > linux.kernel > #1224895

[PATCH 3.4 067/146] ALSA: emu10k1: Emu10k2 32 bit DMA mode

From lizf@kernel.org
Newsgroups linux.kernel
Subject [PATCH 3.4 067/146] ALSA: emu10k1: Emu10k2 32 bit DMA mode
Date 2015-09-15 11:40 +0200
Message-ID <q8USt-QT-9@gated-at.bofh.it> (permalink)
References <q8Upr-hI-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Peter Zubaj <pzubaj@marticonet.sk>

3.4.109-rc1 review patch.  If anyone has any objections, please let me know.

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


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: Zefan Li <lizefan@huawei.com>
---
 include/sound/emu10k1.h              | 14 +++++++++-----
 sound/pci/emu10k1/emu10k1_callback.c |  4 ++--
 sound/pci/emu10k1/emu10k1_main.c     | 17 ++++++++++++-----
 sound/pci/emu10k1/emupcm.c           |  2 +-
 sound/pci/emu10k1/memory.c           | 11 ++++++-----
 5 files changed, 30 insertions(+), 18 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 */
diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c
index f35284b..8295950 100644
--- a/sound/pci/emu10k1/emu10k1_callback.c
+++ b/sound/pci/emu10k1/emu10k1_callback.c
@@ -415,7 +415,7 @@ start_voice(struct snd_emux_voice *vp)
 	snd_emu10k1_ptr_write(hw, Z2, ch, 0);
 
 	/* invalidate maps */
-	temp = (hw->silent_page.addr << 1) | MAP_PTI_MASK;
+	temp = (hw->silent_page.addr << hw->address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
 	snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
 	snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
 #if 0
@@ -436,7 +436,7 @@ start_voice(struct snd_emux_voice *vp)
 		snd_emu10k1_ptr_write(hw, CDF, ch, sample);
 
 		/* invalidate maps */
-		temp = ((unsigned int)hw->silent_page.addr << 1) | MAP_PTI_MASK;
+		temp = ((unsigned int)hw->silent_page.addr << hw_address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
 		snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
 		snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
 		
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 464a9c6..124ae93 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -282,7 +282,7 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
 	snd_emu10k1_ptr_write(emu, TCB, 0, 0);	/* taken from original driver */
 	snd_emu10k1_ptr_write(emu, TCBS, 0, 4);	/* taken from original driver */
 
-	silent_page = (emu->silent_page.addr << 1) | MAP_PTI_MASK;
+	silent_page = (emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
 	for (ch = 0; ch < NUM_G; ch++) {
 		snd_emu10k1_ptr_write(emu, MAPA, ch, silent_page);
 		snd_emu10k1_ptr_write(emu, MAPB, ch, silent_page);
@@ -348,6 +348,11 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
 		outl(reg | A_IOCFG_GPOUT0, emu->port + A_IOCFG);
 	}
 
+	if (emu->address_mode == 0) {
+		/* use 16M in 4G */
+		outl(inl(emu->port + HCFG) | HCFG_EXPANDED_MEM, emu->port + HCFG);
+	}
+
 	return 0;
 }
 
@@ -1844,8 +1849,10 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
 
 	is_audigy = emu->audigy = c->emu10k2_chip;
 
+	/* set addressing mode */
+	emu->address_mode = is_audigy ? 0 : 1;
 	/* set the DMA transfer mask */
-	emu->dma_mask = is_audigy ? AUDIGY_DMA_MASK : EMU10K1_DMA_MASK;
+	emu->dma_mask = emu->address_mode ? EMU10K1_DMA_MASK : AUDIGY_DMA_MASK;
 	if (pci_set_dma_mask(pci, emu->dma_mask) < 0 ||
 	    pci_set_consistent_dma_mask(pci, emu->dma_mask) < 0) {
 		snd_printk(KERN_ERR "architecture does not support PCI busmaster DMA with mask 0x%lx\n", emu->dma_mask);
@@ -1868,7 +1875,7 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
 
 	emu->max_cache_pages = max_cache_bytes >> PAGE_SHIFT;
 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
-				32 * 1024, &emu->ptb_pages) < 0) {
+				(emu->address_mode ? 32 : 16) * 1024, &emu->ptb_pages) < 0) {
 		err = -ENOMEM;
 		goto error;
 	}
@@ -1967,8 +1974,8 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
 
 	/* Clear silent pages and set up pointers */
 	memset(emu->silent_page.area, 0, PAGE_SIZE);
-	silent_page = emu->silent_page.addr << 1;
-	for (idx = 0; idx < MAXPAGES; idx++)
+	silent_page = emu->silent_page.addr << emu->address_mode;
+	for (idx = 0; idx < (emu->address_mode ? MAXPAGES1 : MAXPAGES0); idx++)
 		((u32 *)emu->ptb_pages.area)[idx] = cpu_to_le32(silent_page | idx);
 
 	/* set up voice indices */
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index e22b8e2..c673d2b 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -379,7 +379,7 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
 	snd_emu10k1_ptr_write(emu, Z1, voice, 0);
 	snd_emu10k1_ptr_write(emu, Z2, voice, 0);
 	/* invalidate maps */
-	silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
+	silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
 	snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
 	snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
 	/* modulation envelope */
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 4f502a2..87b7c65 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -34,10 +34,11 @@
  * aligned pages in others
  */
 #define __set_ptb_entry(emu,page,addr) \
-	(((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << 1) | (page)))
+	(((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << (emu->address_mode)) | (page)))
 
 #define UNIT_PAGES		(PAGE_SIZE / EMUPAGESIZE)
-#define MAX_ALIGN_PAGES		(MAXPAGES / UNIT_PAGES)
+#define MAX_ALIGN_PAGES0		(MAXPAGES0 / UNIT_PAGES)
+#define MAX_ALIGN_PAGES1		(MAXPAGES1 / UNIT_PAGES)
 /* get aligned page from offset address */
 #define get_aligned_page(offset)	((offset) >> PAGE_SHIFT)
 /* get offset address from aligned page */
@@ -124,7 +125,7 @@ static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct lis
 		}
 		page = blk->mapped_page + blk->pages;
 	}
-	size = MAX_ALIGN_PAGES - page;
+	size = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0) - page;
 	if (size >= max_size) {
 		*nextp = pos;
 		return page;
@@ -181,7 +182,7 @@ static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
 		q = get_emu10k1_memblk(p, mapped_link);
 		end_page = q->mapped_page;
 	} else
-		end_page = MAX_ALIGN_PAGES;
+		end_page = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0);
 
 	/* remove links */
 	list_del(&blk->mapped_link);
@@ -305,7 +306,7 @@ snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *subst
 	if (snd_BUG_ON(!emu))
 		return NULL;
 	if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
-		       runtime->dma_bytes >= MAXPAGES * EMUPAGESIZE))
+		       runtime->dma_bytes >= (emu->address_mode ? MAXPAGES1 : MAXPAGES0) * EMUPAGESIZE))
 		return NULL;
 	hdr = emu->memhdr;
 	if (snd_BUG_ON(!hdr))
-- 
1.9.1

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  [PATCH 3.4 122/146] vfs: read file_handle only once in handle_to_path lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 087/146] md/raid5: don't record new size if resize_stripes fails. lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 094/146] ARM: net: delegate filter to kernel interpreter when imm_offset() return value can't fit into 12bits. lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 109/146] bridge: fix parsing of MLDv2 reports lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 093/146] ahci: avoton port-disable reset-quirk lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 091/146] usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 113/146] lguest: fix out-by-one error in address checking. lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 114/146] fs, omfs: add NULL terminator in the end up the token list lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 103/146] powerpc: Align TOC to 256 bytes lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 098/146] mac80211: move WEP tailroom size check lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 095/146] drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 118/146] ozwpan: Use proper check to prevent heap overflow lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 105/146] mmc: atmel-mci: fix bad variable type for clkdiv lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 120/146] ozwpan: unchecked signed subtraction leads to DoS lizf@kernel.org - 2015-09-15 11:30 +0200
  [PATCH 3.4 085/146] USB: visor: Match I330 phone more precisely lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 067/146] ALSA: emu10k1: Emu10k2 32 bit DMA mode lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 082/146] rtlwifi: rtl8192cu: Fix kernel deadlock lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 070/146] ARM: pxa: pxa_cplds: add lubbock and mainstone IO lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 069/146] ext4: move check under lock scope to close a race. lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 073/146] mmc: core: add missing pm event in mmc_pm_notify to fix hib restore lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 071/146] ARM: pxa: mainstone: use new pxa_cplds driver lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 077/146] mm/memory-failure: call shake_page() when error hits thp tail page lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 074/146] RDMA/CMA: Canonize IPv4 on IPV6 sockets properly lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 072/146] ARM: pxa: lubbock: use new pxa_cplds driver lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 080/146] libata: Add helper to determine when PHY events should be ignored lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 076/146] xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq() lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 066/146] ALSA: emux: Fix mutex deadlock in OSS emulation lizf@kernel.org - 2015-09-15 11:40 +0200
  [PATCH 3.4 053/146] nfs: don't call blocking operations while !TASK_RUNNING lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 063/146] 3w-9xxx: fix command completion race lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 061/146] 3w-sas: fix command completion race lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 042/146] powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 044/146] fs/binfmt_elf.c: fix bug in loading of PIE binaries lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 050/146] ptrace: fix race between ptrace_resume() and wait_task_stopped() lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 040/146] s390/hibernate: fix save and restore of kernel text section lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 045/146] dm crypt: fix deadlock when async crypto algorithm returns -EBUSY lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 055/146] RCU pathwalk breakage when running into a symlink overmounting something lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 057/146] ALSA: emu10k1: Fix card shortname string buffer overflow lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 038/146] selinux/nlmsg: add XFRM_MSG_MIGRATE lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 056/146] ALSA: hda - Fix mute-LED fixed mode lizf@kernel.org - 2015-09-15 11:50 +0200
  [PATCH 3.4 012/146] usb: common: otg-fsm: only signal connect after switching to peripheral lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 028/146] Input: elantech - fix absolute mode setting on some ASUS laptops lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 005/146] KVM: s390: Zero out current VMDB of STSI before including level3 data. lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 029/146] RDS: Documentation: Document AF_RDS, PF_RDS and SOL_RDS correctly. lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 019/146] C6x: time: Ensure consistency in __init lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 033/146] scsi: storvsc: Fix a bug in copy_from_bounce_buffer() lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 036/146] powerpc: Fix missing L2 cache size in /sys/devices/system/cpu lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 026/146] ext4: make fsync to sync parent dir in no-journal for real this time lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 018/146] UBI: fix check for "too many bytes" lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 021/146] Btrfs: fix log tree corruption when fs mounted with -o discard lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 024/146] rtlwifi: rtl8192cu: Add new USB ID lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 015/146] staging: panel: fix lcd type lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 016/146] UBI: fix out of bounds write lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 008/146] compal-laptop: Check return value of power_supply_register lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 007/146] pinctrl: remove maxpin from documentation lizf@kernel.org - 2015-09-15 12:00 +0200
  [PATCH 3.4 001/146] ipv6: add check for blackhole or prohibited entry in rt6_redire lizf@kernel.org - 2015-09-15 12:10 +0200
  Re: [PATCH 3.4 000/146] 3.4.109-rc1 review Guenter Roeck <linux@roeck-us.net> - 2015-09-15 16:30 +0200
    Re: [PATCH 3.4 000/146] 3.4.109-rc1 review Zefan Li <lizefan@huawei.com> - 2015-09-18 03:50 +0200
      Re: [PATCH 3.4 000/146] 3.4.109-rc1 review Zefan Li <lizefan@huawei.com> - 2015-09-18 04:50 +0200
      Re: [PATCH 3.4 000/146] 3.4.109-rc1 review Guenter Roeck <linux@roeck-us.net> - 2015-09-18 06:10 +0200

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