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arch/arm/src/lc823450: Assign I2S IRQ handling to CPU0

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Previous commit assumed that the caller is running on CPU0.
However, the caller sometimes runs at CPU1.  This patch will
assign the caller to CPU0 explicitly.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2018-01-18 12:30:43 +09:00 committed by Matt Thompson
parent d7cc0c7368
commit c70df0960d
1 changed files with 28 additions and 0 deletions
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28
arch/arm/src/lc823450/lc823450_i2s.c
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@ -51,6 +51,10 @@
#include <nuttx/audio/audio.h>
#include <nuttx/audio/i2s.h>
#ifdef CONFIG_SMP
# include <nuttx/signal.h>
#endif
#include "up_arch.h"
#include "lc823450_dma.h"
#include "lc823450_i2s.h"
@ -460,8 +464,32 @@ FAR struct i2s_dev_s *lc823450_i2sdev_initialize(void)
nxsem_init(&_sem_txdma, 0, 0);
nxsem_init(&_sem_buf_under, 0, 0);
#ifdef CONFIG_SMP
cpu_set_t cpuset0;
cpu_set_t cpuset1;
CPU_ZERO(&cpuset1);
CPU_SET(0, &cpuset1);
/* Backup the current affinity */
sched_getaffinity(getpid(), sizeof(cpuset0), &cpuset0);
/* Set the new affinity which assigns to CPU0 */
sched_setaffinity(getpid(), sizeof(cpuset1), &cpuset1);
nxsig_usleep(10 * 1000);
#endif
irq_attach(LC823450_IRQ_AUDIOBUF0, _i2s_isr, NULL);
#ifdef CONFIG_SMP
/* Restore the original affinity */
sched_setaffinity(getpid(), sizeof(cpuset0), &cpuset0);
nxsig_usleep(10 * 1000);
#endif
/* Enable IRQ for Audio Buffer */
up_enable_irq(LC823450_IRQ_AUDIOBUF0);