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authorTakashi Iwai <tiwai@suse.de>2019-08-08 23:35:44 +0300
committerTakashi Iwai <tiwai@suse.de>2019-08-08 23:35:44 +0300
commit3a76a41ffbf94c49245f5050be97d389b7d28102 (patch)
tree4c713e97619a5ae91674fd6e744c7f776385aee1 /sound/hda
parent118b2806a07605d6e3c880e35a5c472bfda7582f (diff)
parentd4ff1b3917a529bdc75592af6b1504ad6c4029f7 (diff)
downloadlinux-3a76a41ffbf94c49245f5050be97d389b7d28102.tar.xz
Merge branch 'topic/hda-bus-ops-cleanup' into for-next
Pull HD-audio bus ops cleanups. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
-rw-r--r--sound/hda/Kconfig3
-rw-r--r--sound/hda/ext/hdac_ext_bus.c60
-rw-r--r--sound/hda/hdac_bus.c36
-rw-r--r--sound/hda/hdac_controller.c18
-rw-r--r--sound/hda/hdac_stream.c8
5 files changed, 49 insertions, 76 deletions
diff --git a/sound/hda/Kconfig b/sound/hda/Kconfig
index 9ccbcb5a06bd..3d33fc1757ba 100644
--- a/sound/hda/Kconfig
+++ b/sound/hda/Kconfig
@@ -6,6 +6,9 @@ config SND_HDA_CORE
config SND_HDA_DSP_LOADER
bool
+config SND_HDA_ALIGNED_MMIO
+ bool
+
config SND_HDA_COMPONENT
bool
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index 4f9f1d2a2ec5..242306d820ec 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -17,80 +17,22 @@
MODULE_DESCRIPTION("HDA extended core");
MODULE_LICENSE("GPL v2");
-static void hdac_ext_writel(u32 value, u32 __iomem *addr)
-{
- writel(value, addr);
-}
-
-static u32 hdac_ext_readl(u32 __iomem *addr)
-{
- return readl(addr);
-}
-
-static void hdac_ext_writew(u16 value, u16 __iomem *addr)
-{
- writew(value, addr);
-}
-
-static u16 hdac_ext_readw(u16 __iomem *addr)
-{
- return readw(addr);
-}
-
-static void hdac_ext_writeb(u8 value, u8 __iomem *addr)
-{
- writeb(value, addr);
-}
-
-static u8 hdac_ext_readb(u8 __iomem *addr)
-{
- return readb(addr);
-}
-
-static int hdac_ext_dma_alloc_pages(struct hdac_bus *bus, int type,
- size_t size, struct snd_dma_buffer *buf)
-{
- return snd_dma_alloc_pages(type, bus->dev, size, buf);
-}
-
-static void hdac_ext_dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
-{
- snd_dma_free_pages(buf);
-}
-
-static const struct hdac_io_ops hdac_ext_default_io = {
- .reg_writel = hdac_ext_writel,
- .reg_readl = hdac_ext_readl,
- .reg_writew = hdac_ext_writew,
- .reg_readw = hdac_ext_readw,
- .reg_writeb = hdac_ext_writeb,
- .reg_readb = hdac_ext_readb,
- .dma_alloc_pages = hdac_ext_dma_alloc_pages,
- .dma_free_pages = hdac_ext_dma_free_pages,
-};
-
/**
* snd_hdac_ext_bus_init - initialize a HD-audio extended bus
* @ebus: the pointer to extended bus object
* @dev: device pointer
* @ops: bus verb operators
- * @io_ops: lowlevel I/O operators, can be NULL. If NULL core will use
* default ops
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops,
- const struct hdac_io_ops *io_ops,
const struct hdac_ext_bus_ops *ext_ops)
{
int ret;
- /* check if io ops are provided, if not load the defaults */
- if (io_ops == NULL)
- io_ops = &hdac_ext_default_io;
-
- ret = snd_hdac_bus_init(bus, dev, ops, io_ops);
+ ret = snd_hdac_bus_init(bus, dev, ops);
if (ret < 0)
return ret;
diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
index 14e57ffd5bc1..dc2523ef7d98 100644
--- a/sound/hda/hdac_bus.c
+++ b/sound/hda/hdac_bus.c
@@ -19,13 +19,11 @@ static const struct hdac_bus_ops default_ops = {
* snd_hdac_bus_init - initialize a HD-audio bas bus
* @bus: the pointer to bus object
* @ops: bus verb operators
- * @io_ops: lowlevel I/O operators
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
- const struct hdac_bus_ops *ops,
- const struct hdac_io_ops *io_ops)
+ const struct hdac_bus_ops *ops)
{
memset(bus, 0, sizeof(*bus));
bus->dev = dev;
@@ -33,7 +31,7 @@ int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
bus->ops = ops;
else
bus->ops = &default_ops;
- bus->io_ops = io_ops;
+ bus->dma_type = SNDRV_DMA_TYPE_DEV;
INIT_LIST_HEAD(&bus->stream_list);
INIT_LIST_HEAD(&bus->codec_list);
INIT_WORK(&bus->unsol_work, snd_hdac_bus_process_unsol_events);
@@ -217,3 +215,33 @@ void snd_hdac_bus_remove_device(struct hdac_bus *bus,
flush_work(&bus->unsol_work);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_remove_device);
+
+#ifdef CONFIG_SND_HDA_ALIGNED_MMIO
+/* Helpers for aligned read/write of mmio space, for Tegra */
+unsigned int snd_hdac_aligned_read(void __iomem *addr, unsigned int mask)
+{
+ void __iomem *aligned_addr =
+ (void __iomem *)((unsigned long)(addr) & ~0x3);
+ unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
+ unsigned int v;
+
+ v = readl(aligned_addr);
+ return (v >> shift) & mask;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_aligned_read);
+
+void snd_hdac_aligned_write(unsigned int val, void __iomem *addr,
+ unsigned int mask)
+{
+ void __iomem *aligned_addr =
+ (void __iomem *)((unsigned long)(addr) & ~0x3);
+ unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
+ unsigned int v;
+
+ v = readl(aligned_addr);
+ v &= ~(mask << shift);
+ v |= val << shift;
+ writel(v, aligned_addr);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_aligned_write);
+#endif /* CONFIG_SND_HDA_ALIGNED_MMIO */
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 196bbc85699e..d3999e7b0705 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -577,12 +577,13 @@ int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)
{
struct hdac_stream *s;
int num_streams = 0;
+ int dma_type = bus->dma_type ? bus->dma_type : SNDRV_DMA_TYPE_DEV;
int err;
list_for_each_entry(s, &bus->stream_list, list) {
/* allocate memory for the BDL for each stream */
- err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
- BDL_SIZE, &s->bdl);
+ err = snd_dma_alloc_pages(dma_type, bus->dev,
+ BDL_SIZE, &s->bdl);
num_streams++;
if (err < 0)
return -ENOMEM;
@@ -591,16 +592,15 @@ int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)
if (WARN_ON(!num_streams))
return -EINVAL;
/* allocate memory for the position buffer */
- err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
- num_streams * 8, &bus->posbuf);
+ err = snd_dma_alloc_pages(dma_type, bus->dev,
+ num_streams * 8, &bus->posbuf);
if (err < 0)
return -ENOMEM;
list_for_each_entry(s, &bus->stream_list, list)
s->posbuf = (__le32 *)(bus->posbuf.area + s->index * 8);
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
- return bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
- PAGE_SIZE, &bus->rb);
+ return snd_dma_alloc_pages(dma_type, bus->dev, PAGE_SIZE, &bus->rb);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_alloc_stream_pages);
@@ -614,12 +614,12 @@ void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus)
list_for_each_entry(s, &bus->stream_list, list) {
if (s->bdl.area)
- bus->io_ops->dma_free_pages(bus, &s->bdl);
+ snd_dma_free_pages(&s->bdl);
}
if (bus->rb.area)
- bus->io_ops->dma_free_pages(bus, &bus->rb);
+ snd_dma_free_pages(&bus->rb);
if (bus->posbuf.area)
- bus->io_ops->dma_free_pages(bus, &bus->posbuf);
+ snd_dma_free_pages(&bus->posbuf);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_free_stream_pages);
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index 55d53b89ac21..fc68d4ce0a37 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -680,8 +680,8 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
azx_dev->locked = true;
spin_unlock_irq(&bus->reg_lock);
- err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV_SG,
- byte_size, bufp);
+ err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, bus->dev,
+ byte_size, bufp);
if (err < 0)
goto err_alloc;
@@ -707,7 +707,7 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
return azx_dev->stream_tag;
error:
- bus->io_ops->dma_free_pages(bus, bufp);
+ snd_dma_free_pages(bufp);
err_alloc:
spin_lock_irq(&bus->reg_lock);
azx_dev->locked = false;
@@ -754,7 +754,7 @@ void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev,
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
- bus->io_ops->dma_free_pages(bus, dmab);
+ snd_dma_free_pages(dmab);
dmab->area = NULL;
spin_lock_irq(&bus->reg_lock);