/**
 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
 *
 * This source file is released under GPL v2 license (no other versions).
 * See the COPYING file included in the main directory of this source
 * distribution for the license terms and conditions.
 *
 * @File    ctvmem.h
 *
 * @Brief
 * This file contains the definition of virtual memory management object
 * for card device.
 *
 * @Author Liu Chun
 * @Date Mar 28 2008
 */

#ifndef CTVMEM_H
#define CTVMEM_H

#define CT_PTP_NUM	4	/* num of device page table pages */

#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/pci.h>
#include <sound/memalloc.h>

/* The chip can handle the page table of 4k pages
 * (emu20k1 can handle even 8k pages, but we don't use it right now)
 */
#define CT_PAGE_SIZE	4096
#define CT_PAGE_SHIFT	12
#define CT_PAGE_MASK	(~(PAGE_SIZE - 1))
#define CT_PAGE_ALIGN(addr)	ALIGN(addr, CT_PAGE_SIZE)

struct ct_vm_block {
	unsigned int addr;	/* starting logical addr of this block */
	unsigned int size;	/* size of this device virtual mem block */
	struct list_head list;
};

struct snd_pcm_substream;

/* Virtual memory management object for card device */
struct ct_vm {
	struct snd_dma_buffer ptp[CT_PTP_NUM];	/* Device page table pages */
	unsigned int size;		/* Available addr space in bytes */
	struct list_head unused;	/* List of unused blocks */
	struct list_head used;		/* List of used blocks */
	struct mutex lock;

	/* Map host addr (kmalloced/vmalloced) to device logical addr. */
	struct ct_vm_block *(*map)(struct ct_vm *, struct snd_pcm_substream *,
				   int size);
	/* Unmap device logical addr area. */
	void (*unmap)(struct ct_vm *, struct ct_vm_block *block);
	dma_addr_t (*get_ptp_phys)(struct ct_vm *vm, int index);
};

int ct_vm_create(struct ct_vm **rvm, struct pci_dev *pci);
void ct_vm_destroy(struct ct_vm *vm);

#endif /* CTVMEM_H */
amsung/dmaengine.c?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung/dmaengine.c?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/samsung/dmaengine.c?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/samsung/dmaengine.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/samsung?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>samsung</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/samsung/dmaengine.c?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176'>dmaengine.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/samsung/dmaengine.c?h=nds-private-remove&amp;id=a5c02f668c36c05fbbb29d157507be4868ecd176&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;</td><td class='right'>2017-01-24 09:57:18 -0800</td></tr>
<tr><th>committer</th><td>Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;</td><td class='right'>2017-01-24 09:57:18 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/skylake?id=62ed8ceda1699acae01b666497f004bfd3d67a6f'>62ed8ceda1699acae01b666497f004bfd3d67a6f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/intel/skylake?id=62ed8ceda1699acae01b666497f004bfd3d67a6f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=62ed8ceda1699acae01b666497f004bfd3d67a6f'>fe38c83c49dfd568b540666948ef78cb9d082c38</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/intel/skylake?id=62ed8ceda1699acae01b666497f004bfd3d67a6f'>sound/soc/intel/skylake</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/skylake?id=1c3415a06b1016a596bfe59e0cfee56c773aa958'>1c3415a06b1016a596bfe59e0cfee56c773aa958</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/intel/skylake?id=62ed8ceda1699acae01b666497f004bfd3d67a6f&amp;id2=1c3415a06b1016a596bfe59e0cfee56c773aa958'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/intel/skylake?id=7a308bb3016f57e5be11a677d15b821536419d36'>7a308bb3016f57e5be11a677d15b821536419d36</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/intel/skylake?id=62ed8ceda1699acae01b666497f004bfd3d67a6f&amp;id2=7a308bb3016f57e5be11a677d15b821536419d36'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'v4.10-rc5' into for-linus</div><div class='commit-msg'>Sync up with mainline to apply fixup to a commit that came through
power supply tree.
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=62ed8ceda1699acae01b666497f004bfd3d67a6f'>Diffstat</a> (limited to 'sound/soc/intel/skylake')</div><table summary='diffstat' class='diffstat'>