338 lines
8.9 KiB
C
338 lines
8.9 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
|
||
|
|
* GUS's memory allocation routines / bottom layer
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <sound/core.h>
|
||
|
|
#include <sound/gus.h>
|
||
|
|
#include <sound/info.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_SND_DEBUG
|
||
|
|
static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
|
||
|
|
struct snd_info_buffer *buffer);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void snd_gf1_mem_lock(struct snd_gf1_mem * alloc, int xup)
|
||
|
|
{
|
||
|
|
if (!xup) {
|
||
|
|
mutex_lock(&alloc->memory_mutex);
|
||
|
|
} else {
|
||
|
|
mutex_unlock(&alloc->memory_mutex);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct snd_gf1_mem_block *
|
||
|
|
snd_gf1_mem_xalloc(struct snd_gf1_mem *alloc, struct snd_gf1_mem_block *block,
|
||
|
|
const char *name)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem_block *pblock, *nblock;
|
||
|
|
|
||
|
|
nblock = kmalloc(sizeof(struct snd_gf1_mem_block), GFP_KERNEL);
|
||
|
|
if (nblock == NULL)
|
||
|
|
return NULL;
|
||
|
|
*nblock = *block;
|
||
|
|
nblock->name = kstrdup(name, GFP_KERNEL);
|
||
|
|
if (!nblock->name) {
|
||
|
|
kfree(nblock);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
pblock = alloc->first;
|
||
|
|
while (pblock) {
|
||
|
|
if (pblock->ptr > nblock->ptr) {
|
||
|
|
nblock->prev = pblock->prev;
|
||
|
|
nblock->next = pblock;
|
||
|
|
pblock->prev = nblock;
|
||
|
|
if (pblock == alloc->first)
|
||
|
|
alloc->first = nblock;
|
||
|
|
else
|
||
|
|
nblock->prev->next = nblock;
|
||
|
|
mutex_unlock(&alloc->memory_mutex);
|
||
|
|
return nblock;
|
||
|
|
}
|
||
|
|
pblock = pblock->next;
|
||
|
|
}
|
||
|
|
nblock->next = NULL;
|
||
|
|
if (alloc->last == NULL) {
|
||
|
|
nblock->prev = NULL;
|
||
|
|
alloc->first = alloc->last = nblock;
|
||
|
|
} else {
|
||
|
|
nblock->prev = alloc->last;
|
||
|
|
alloc->last->next = nblock;
|
||
|
|
alloc->last = nblock;
|
||
|
|
}
|
||
|
|
return nblock;
|
||
|
|
}
|
||
|
|
|
||
|
|
int snd_gf1_mem_xfree(struct snd_gf1_mem * alloc, struct snd_gf1_mem_block * block)
|
||
|
|
{
|
||
|
|
if (block->share) { /* ok.. shared block */
|
||
|
|
block->share--;
|
||
|
|
mutex_unlock(&alloc->memory_mutex);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (alloc->first == block) {
|
||
|
|
alloc->first = block->next;
|
||
|
|
if (block->next)
|
||
|
|
block->next->prev = NULL;
|
||
|
|
} else {
|
||
|
|
block->prev->next = block->next;
|
||
|
|
if (block->next)
|
||
|
|
block->next->prev = block->prev;
|
||
|
|
}
|
||
|
|
if (alloc->last == block) {
|
||
|
|
alloc->last = block->prev;
|
||
|
|
if (block->prev)
|
||
|
|
block->prev->next = NULL;
|
||
|
|
} else {
|
||
|
|
block->next->prev = block->prev;
|
||
|
|
if (block->prev)
|
||
|
|
block->prev->next = block->next;
|
||
|
|
}
|
||
|
|
kfree(block->name);
|
||
|
|
kfree(block);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct snd_gf1_mem_block *snd_gf1_mem_look(struct snd_gf1_mem * alloc,
|
||
|
|
unsigned int address)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem_block *block;
|
||
|
|
|
||
|
|
for (block = alloc->first; block; block = block->next) {
|
||
|
|
if (block->ptr == address) {
|
||
|
|
return block;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct snd_gf1_mem_block *snd_gf1_mem_share(struct snd_gf1_mem * alloc,
|
||
|
|
unsigned int *share_id)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem_block *block;
|
||
|
|
|
||
|
|
if (!share_id[0] && !share_id[1] &&
|
||
|
|
!share_id[2] && !share_id[3])
|
||
|
|
return NULL;
|
||
|
|
for (block = alloc->first; block; block = block->next)
|
||
|
|
if (!memcmp(share_id, block->share_id,
|
||
|
|
sizeof(block->share_id)))
|
||
|
|
return block;
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int snd_gf1_mem_find(struct snd_gf1_mem * alloc,
|
||
|
|
struct snd_gf1_mem_block * block,
|
||
|
|
unsigned int size, int w_16, int align)
|
||
|
|
{
|
||
|
|
struct snd_gf1_bank_info *info = w_16 ? alloc->banks_16 : alloc->banks_8;
|
||
|
|
unsigned int idx, boundary;
|
||
|
|
int size1;
|
||
|
|
struct snd_gf1_mem_block *pblock;
|
||
|
|
unsigned int ptr1, ptr2;
|
||
|
|
|
||
|
|
if (w_16 && align < 2)
|
||
|
|
align = 2;
|
||
|
|
block->flags = w_16 ? SNDRV_GF1_MEM_BLOCK_16BIT : 0;
|
||
|
|
block->owner = SNDRV_GF1_MEM_OWNER_DRIVER;
|
||
|
|
block->share = 0;
|
||
|
|
block->share_id[0] = block->share_id[1] =
|
||
|
|
block->share_id[2] = block->share_id[3] = 0;
|
||
|
|
block->name = NULL;
|
||
|
|
block->prev = block->next = NULL;
|
||
|
|
for (pblock = alloc->first, idx = 0; pblock; pblock = pblock->next) {
|
||
|
|
while (pblock->ptr >= (boundary = info[idx].address + info[idx].size))
|
||
|
|
idx++;
|
||
|
|
while (pblock->ptr + pblock->size >= (boundary = info[idx].address + info[idx].size))
|
||
|
|
idx++;
|
||
|
|
ptr2 = boundary;
|
||
|
|
if (pblock->next) {
|
||
|
|
if (pblock->ptr + pblock->size == pblock->next->ptr)
|
||
|
|
continue;
|
||
|
|
if (pblock->next->ptr < boundary)
|
||
|
|
ptr2 = pblock->next->ptr;
|
||
|
|
}
|
||
|
|
ptr1 = ALIGN(pblock->ptr + pblock->size, align);
|
||
|
|
if (ptr1 >= ptr2)
|
||
|
|
continue;
|
||
|
|
size1 = ptr2 - ptr1;
|
||
|
|
if ((int)size <= size1) {
|
||
|
|
block->ptr = ptr1;
|
||
|
|
block->size = size;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
while (++idx < 4) {
|
||
|
|
if (size <= info[idx].size) {
|
||
|
|
/* I assume that bank address is already aligned.. */
|
||
|
|
block->ptr = info[idx].address;
|
||
|
|
block->size = size;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct snd_gf1_mem_block *snd_gf1_mem_alloc(struct snd_gf1_mem * alloc, int owner,
|
||
|
|
char *name, int size, int w_16, int align,
|
||
|
|
unsigned int *share_id)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem_block block, *nblock;
|
||
|
|
|
||
|
|
snd_gf1_mem_lock(alloc, 0);
|
||
|
|
if (share_id != NULL) {
|
||
|
|
nblock = snd_gf1_mem_share(alloc, share_id);
|
||
|
|
if (nblock != NULL) {
|
||
|
|
if (size != (int)nblock->size) {
|
||
|
|
/* TODO: remove in the future */
|
||
|
|
snd_printk(KERN_ERR "snd_gf1_mem_alloc - share: sizes differ\n");
|
||
|
|
goto __std;
|
||
|
|
}
|
||
|
|
nblock->share++;
|
||
|
|
snd_gf1_mem_lock(alloc, 1);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
__std:
|
||
|
|
if (snd_gf1_mem_find(alloc, &block, size, w_16, align) < 0) {
|
||
|
|
snd_gf1_mem_lock(alloc, 1);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
if (share_id != NULL)
|
||
|
|
memcpy(&block.share_id, share_id, sizeof(block.share_id));
|
||
|
|
block.owner = owner;
|
||
|
|
nblock = snd_gf1_mem_xalloc(alloc, &block, name);
|
||
|
|
snd_gf1_mem_lock(alloc, 1);
|
||
|
|
return nblock;
|
||
|
|
}
|
||
|
|
|
||
|
|
int snd_gf1_mem_free(struct snd_gf1_mem * alloc, unsigned int address)
|
||
|
|
{
|
||
|
|
int result;
|
||
|
|
struct snd_gf1_mem_block *block;
|
||
|
|
|
||
|
|
snd_gf1_mem_lock(alloc, 0);
|
||
|
|
block = snd_gf1_mem_look(alloc, address);
|
||
|
|
if (block) {
|
||
|
|
result = snd_gf1_mem_xfree(alloc, block);
|
||
|
|
snd_gf1_mem_lock(alloc, 1);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
snd_gf1_mem_lock(alloc, 1);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int snd_gf1_mem_init(struct snd_gus_card * gus)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem *alloc;
|
||
|
|
struct snd_gf1_mem_block block;
|
||
|
|
|
||
|
|
alloc = &gus->gf1.mem_alloc;
|
||
|
|
mutex_init(&alloc->memory_mutex);
|
||
|
|
alloc->first = alloc->last = NULL;
|
||
|
|
if (!gus->gf1.memory)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
memset(&block, 0, sizeof(block));
|
||
|
|
block.owner = SNDRV_GF1_MEM_OWNER_DRIVER;
|
||
|
|
if (gus->gf1.enh_mode) {
|
||
|
|
block.ptr = 0;
|
||
|
|
block.size = 1024;
|
||
|
|
if (!snd_gf1_mem_xalloc(alloc, &block, "InterWave LFOs"))
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
block.ptr = gus->gf1.default_voice_address;
|
||
|
|
block.size = 4;
|
||
|
|
if (!snd_gf1_mem_xalloc(alloc, &block, "Voice default (NULL's)"))
|
||
|
|
return -ENOMEM;
|
||
|
|
#ifdef CONFIG_SND_DEBUG
|
||
|
|
snd_card_ro_proc_new(gus->card, "gusmem", gus, snd_gf1_mem_info_read);
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int snd_gf1_mem_done(struct snd_gus_card * gus)
|
||
|
|
{
|
||
|
|
struct snd_gf1_mem *alloc;
|
||
|
|
struct snd_gf1_mem_block *block, *nblock;
|
||
|
|
|
||
|
|
alloc = &gus->gf1.mem_alloc;
|
||
|
|
block = alloc->first;
|
||
|
|
while (block) {
|
||
|
|
nblock = block->next;
|
||
|
|
snd_gf1_mem_xfree(alloc, block);
|
||
|
|
block = nblock;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_SND_DEBUG
|
||
|
|
static void snd_gf1_mem_info_read(struct snd_info_entry *entry,
|
||
|
|
struct snd_info_buffer *buffer)
|
||
|
|
{
|
||
|
|
struct snd_gus_card *gus;
|
||
|
|
struct snd_gf1_mem *alloc;
|
||
|
|
struct snd_gf1_mem_block *block;
|
||
|
|
unsigned int total, used;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
gus = entry->private_data;
|
||
|
|
alloc = &gus->gf1.mem_alloc;
|
||
|
|
mutex_lock(&alloc->memory_mutex);
|
||
|
|
snd_iprintf(buffer, "8-bit banks : \n ");
|
||
|
|
for (i = 0; i < 4; i++)
|
||
|
|
snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_8[i].address, alloc->banks_8[i].size >> 10, i + 1 < 4 ? "," : "");
|
||
|
|
snd_iprintf(buffer, "\n"
|
||
|
|
"16-bit banks : \n ");
|
||
|
|
for (i = total = 0; i < 4; i++) {
|
||
|
|
snd_iprintf(buffer, "0x%06x (%04ik)%s", alloc->banks_16[i].address, alloc->banks_16[i].size >> 10, i + 1 < 4 ? "," : "");
|
||
|
|
total += alloc->banks_16[i].size;
|
||
|
|
}
|
||
|
|
snd_iprintf(buffer, "\n");
|
||
|
|
used = 0;
|
||
|
|
for (block = alloc->first, i = 0; block; block = block->next, i++) {
|
||
|
|
used += block->size;
|
||
|
|
snd_iprintf(buffer, "Block %i onboard 0x%x size %i (0x%x):\n", i, block->ptr, block->size, block->size);
|
||
|
|
if (block->share ||
|
||
|
|
block->share_id[0] || block->share_id[1] ||
|
||
|
|
block->share_id[2] || block->share_id[3])
|
||
|
|
snd_iprintf(buffer, " Share : %i [id0 0x%x] [id1 0x%x] [id2 0x%x] [id3 0x%x]\n",
|
||
|
|
block->share,
|
||
|
|
block->share_id[0], block->share_id[1],
|
||
|
|
block->share_id[2], block->share_id[3]);
|
||
|
|
snd_iprintf(buffer, " Flags :%s\n",
|
||
|
|
block->flags & SNDRV_GF1_MEM_BLOCK_16BIT ? " 16-bit" : "");
|
||
|
|
snd_iprintf(buffer, " Owner : ");
|
||
|
|
switch (block->owner) {
|
||
|
|
case SNDRV_GF1_MEM_OWNER_DRIVER:
|
||
|
|
snd_iprintf(buffer, "driver - %s\n", block->name);
|
||
|
|
break;
|
||
|
|
case SNDRV_GF1_MEM_OWNER_WAVE_SIMPLE:
|
||
|
|
snd_iprintf(buffer, "SIMPLE wave\n");
|
||
|
|
break;
|
||
|
|
case SNDRV_GF1_MEM_OWNER_WAVE_GF1:
|
||
|
|
snd_iprintf(buffer, "GF1 wave\n");
|
||
|
|
break;
|
||
|
|
case SNDRV_GF1_MEM_OWNER_WAVE_IWFFFF:
|
||
|
|
snd_iprintf(buffer, "IWFFFF wave\n");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
snd_iprintf(buffer, "unknown\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
snd_iprintf(buffer, " Total: memory = %i, used = %i, free = %i\n",
|
||
|
|
total, used, total - used);
|
||
|
|
mutex_unlock(&alloc->memory_mutex);
|
||
|
|
#if 0
|
||
|
|
ultra_iprintf(buffer, " Verify: free = %i, max 8-bit block = %i, max 16-bit block = %i\n",
|
||
|
|
ultra_memory_free_size(card, &card->gf1.mem_alloc),
|
||
|
|
ultra_memory_free_block(card, &card->gf1.mem_alloc, 0),
|
||
|
|
ultra_memory_free_block(card, &card->gf1.mem_alloc, 1));
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#endif
|