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[Qemu-devel] [PATCH] audio/hda: drop atomics
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH] audio/hda: drop atomics |
Date: |
Wed, 27 Jun 2018 13:19:36 +0200 |
Doesn't build on 32bit clang. And because we run under qemu mutex
anyway they are not needed.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/audio/hda-codec.c | 31 +++++++++++++++----------------
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 8a8214de74..a4e24b919d 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -18,7 +18,6 @@
*/
#include "qemu/osdep.h"
-#include "qemu/atomic.h"
#include "hw/hw.h"
#include "hw/pci/pci.h"
#include "intel-hda.h"
@@ -212,7 +211,7 @@ static inline void hda_timer_sync_adjust(HDAAudioStream
*st, int64_t target_pos)
}
trace_hda_audio_adjust(st->node->name, target_pos);
- atomic_fetch_add(&st->buft_start, corr);
+ st->buft_start += corr;
}
static void hda_audio_input_timer(void *opaque)
@@ -221,9 +220,9 @@ static void hda_audio_input_timer(void *opaque)
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- int64_t buft_start = atomic_fetch_add(&st->buft_start, 0);
- int64_t wpos = atomic_fetch_add(&st->wpos, 0);
- int64_t rpos = atomic_fetch_add(&st->rpos, 0);
+ int64_t buft_start = st->buft_start;
+ int64_t wpos = st->wpos;
+ int64_t rpos = st->rpos;
int64_t wanted_rpos = hda_bytes_per_second(st) * (now - buft_start)
/ NANOSECONDS_PER_SECOND;
@@ -245,7 +244,7 @@ static void hda_audio_input_timer(void *opaque)
}
rpos += chunk;
to_transfer -= chunk;
- atomic_fetch_add(&st->rpos, chunk);
+ st->rpos += chunk;
}
out_timer:
@@ -259,8 +258,8 @@ static void hda_audio_input_cb(void *opaque, int avail)
{
HDAAudioStream *st = opaque;
- int64_t wpos = atomic_fetch_add(&st->wpos, 0);
- int64_t rpos = atomic_fetch_add(&st->rpos, 0);
+ int64_t wpos = st->wpos;
+ int64_t rpos = st->rpos;
int64_t to_transfer = audio_MIN(B_SIZE - (wpos - rpos), avail);
@@ -272,7 +271,7 @@ static void hda_audio_input_cb(void *opaque, int avail)
uint32_t read = AUD_read(st->voice.in, st->buf + start, chunk);
wpos += read;
to_transfer -= read;
- atomic_fetch_add(&st->wpos, read);
+ st->wpos += read;
if (chunk != read) {
break;
}
@@ -285,9 +284,9 @@ static void hda_audio_output_timer(void *opaque)
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- int64_t buft_start = atomic_fetch_add(&st->buft_start, 0);
- int64_t wpos = atomic_fetch_add(&st->wpos, 0);
- int64_t rpos = atomic_fetch_add(&st->rpos, 0);
+ int64_t buft_start = st->buft_start;
+ int64_t wpos = st->wpos;
+ int64_t rpos = st->rpos;
int64_t wanted_wpos = hda_bytes_per_second(st) * (now - buft_start)
/ NANOSECONDS_PER_SECOND;
@@ -309,7 +308,7 @@ static void hda_audio_output_timer(void *opaque)
}
wpos += chunk;
to_transfer -= chunk;
- atomic_fetch_add(&st->wpos, chunk);
+ st->wpos += chunk;
}
out_timer:
@@ -323,8 +322,8 @@ static void hda_audio_output_cb(void *opaque, int avail)
{
HDAAudioStream *st = opaque;
- int64_t wpos = atomic_fetch_add(&st->wpos, 0);
- int64_t rpos = atomic_fetch_add(&st->rpos, 0);
+ int64_t wpos = st->wpos;
+ int64_t rpos = st->rpos;
int64_t to_transfer = audio_MIN(wpos - rpos, avail);
@@ -345,7 +344,7 @@ static void hda_audio_output_cb(void *opaque, int avail)
uint32_t written = AUD_write(st->voice.out, st->buf + start, chunk);
rpos += written;
to_transfer -= written;
- atomic_fetch_add(&st->rpos, written);
+ st->rpos += written;
if (chunk != written) {
break;
}
--
2.9.3
- [Qemu-devel] [PATCH] audio/hda: drop atomics,
Gerd Hoffmann <=