From: Akshu Agrawal <akshu.agrawal@amd.com>
Cc: "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER
MANAGEM..." <alsa-devel@alsa-project.org>,
open list <linux-kernel@vger.kernel.org>,
Takashi Iwai <tiwai@suse.com>,
Liam Girdwood <lgirdwood@gmail.com>,
djkurtz@chromium.org, Mark Brown <broonie@kernel.org>,
"Mukunda, Vijendar" <Vijendar.Mukunda@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
akshu.agrawal@amd.com, Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH 2/2] ASoC: AMD: For capture have interrupts on I2S->ACP channel
Date: Mon, 16 Jul 2018 15:02:41 +0800 [thread overview]
Message-ID: <1531724566-4019-2-git-send-email-akshu.agrawal@amd.com> (raw)
In-Reply-To: <1531724566-4019-1-git-send-email-akshu.agrawal@amd.com>
Having interrupts enabled for ACP<->SYSMEM DMA transfer, we are in
for an interrupt storm.
For both playback and capture interrupts should be enabled for
I2S<->ACP DMA.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
---
sound/soc/amd/acp-pcm-dma.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index eeb8677..94bcf69 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -224,13 +224,11 @@ static void set_acp_sysmem_dma_descriptors(void __iomem *acp_mmio,
switch (asic_type) {
case CHIP_STONEY:
dmadscr[i].xfer_val |=
- BIT(22) |
(ACP_DMA_ATTR_SHARED_MEM_TO_DAGB_GARLIC << 16) |
(size / 2);
break;
default:
dmadscr[i].xfer_val |=
- BIT(22) |
(ACP_DMA_ATTR_SHAREDMEM_TO_DAGB_ONION << 16) |
(size / 2);
}
@@ -421,9 +419,9 @@ static void acp_dma_start(void __iomem *acp_mmio, u16 ch_num)
switch (ch_num) {
case ACP_TO_I2S_DMA_CH_NUM:
- case ACP_TO_SYSRAM_CH_NUM:
+ case I2S_TO_ACP_DMA_CH_NUM:
case ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM:
- case ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM:
+ case I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM:
dma_ctrl |= ACP_DMA_CNTL_0__DMAChIOCEn_MASK;
break;
default:
@@ -705,18 +703,18 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
- if ((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) != 0) {
+ if ((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) != 0) {
valid_irq = true;
snd_pcm_period_elapsed(irq_data->capture_i2ssp_stream);
- acp_reg_write((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) << 16,
+ acp_reg_write((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) << 16,
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
- if ((intr_flag & BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) != 0) {
+ if ((intr_flag & BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) != 0) {
valid_irq = true;
snd_pcm_period_elapsed(irq_data->capture_i2sbt_stream);
acp_reg_write((intr_flag &
- BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) << 16,
+ BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) << 16,
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
--
1.9.1
next prev parent reply other threads:[~2018-07-16 7:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-16 7:02 [PATCH 1/2] ASoC: AMD: Send correct channel for configuring DMA descriptors Akshu Agrawal
2018-07-16 7:02 ` Akshu Agrawal [this message]
2018-07-16 14:30 ` Applied "ASoC: AMD: For capture have interrupts on I2S->ACP channel" to the asoc tree Mark Brown
2018-07-16 14:30 ` Applied "ASoC: AMD: Send correct channel for configuring DMA descriptors" " Mark Brown
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