linux-kernel - [PATCH 5/5] ASoC: SOF: amd: Add acp-psp mailbox interface for iram-dram fence register modification

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Message-ID: <20231219112416.3334928-5-venkataprasad.potturu@amd.com>
Date: Tue, 19 Dec 2023 16:54:13 +0530
From: Venkata Prasad Potturu <venkataprasad.potturu@....com>
To: <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC: <Vijendar.Mukunda@....com>, <Basavaraj.Hiregoudar@....com>,
	<Sunil-kumar.Dommati@....com>, <syed.sabakareem@....com>,
	<cristian.ciocaltea@...labora.com>, <emil.velikov@...labora.com>, "Venkata
 Prasad Potturu" <venkataprasad.potturu@....com>, Pierre-Louis Bossart
	<pierre-louis.bossart@...ux.intel.com>, Liam Girdwood <lgirdwood@...il.com>,
	Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>, Bard Liao
	<yung-chuan.liao@...ux.intel.com>, Ranjani Sridharan
	<ranjani.sridharan@...ux.intel.com>, Daniel Baluta <daniel.baluta@....com>,
	Kai Vehmanen <kai.vehmanen@...ux.intel.com>, Jaroslav Kysela
	<perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Mastan Katragadda
	<Mastan.Katragadda@....com>, V sujith kumar Reddy
	<Vsujithkumar.Reddy@....com>, "moderated list:SOUND - SOUND OPEN FIRMWARE
 (SOF) DRIVERS" <sound-open-firmware@...a-project.org>, "open list:SOUND - SOC
 LAYER / DYNAMIC AUDIO POWER MANAGEM..." <linux-sound@...r.kernel.org>, "open
 list" <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/5] ASoC: SOF: amd: Add acp-psp mailbox interface for iram-dram fence register modification

Add acp-psp mailbox communication interface for iram-dram size
modification to notify psp.

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@....com>
---
 sound/soc/sof/amd/acp.c | 11 +++++++++++
 sound/soc/sof/amd/acp.h |  5 +++++
 2 files changed, 16 insertions(+)

diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index 7860724c4d2d..32a741fcb84f 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -278,6 +278,17 @@ int configure_and_run_sha_dma(struct acp_dev_data *adata, void *image_addr,
 			return ret;
 	}
 
+	/* psp_send_cmd only required for vangogh platform (rev - 5) */
+	if (desc->rev == 5) {
+		/* Modify IRAM and DRAM size */
+		ret = psp_send_cmd(adata, MBOX_ACP_IRAM_DRAM_FENCE_COMMAND | IRAM_DRAM_FENCE_2);
+		if (ret)
+			return ret;
+		ret = psp_send_cmd(adata, MBOX_ACP_IRAM_DRAM_FENCE_COMMAND | MBOX_ISREADY_FLAG);
+		if (ret)
+			return ret;
+	}
+
 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SHA_DSP_FW_QUALIFIER,
 					    fw_qualifier, fw_qualifier & DSP_FW_RUN_ENABLE,
 					    ACP_REG_POLL_INTERVAL, ACP_DMA_COMPLETE_TIMEOUT_US);
diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h
index c536cfde0e44..c645aee216fd 100644
--- a/sound/soc/sof/amd/acp.h
+++ b/sound/soc/sof/amd/acp.h
@@ -74,9 +74,14 @@
 #define MP0_C2PMSG_114_REG			0x3810AC8
 #define MP0_C2PMSG_73_REG			0x3810A24
 #define MBOX_ACP_SHA_DMA_COMMAND		0x70000
+#define MBOX_ACP_IRAM_DRAM_FENCE_COMMAND	0x80000
 #define MBOX_DELAY_US				1000
 #define MBOX_READY_MASK				0x80000000
 #define MBOX_STATUS_MASK			0xFFFF
+#define MBOX_ISREADY_FLAG			0x40000000
+#define IRAM_DRAM_FENCE_0			0X0
+#define IRAM_DRAM_FENCE_1			0X01
+#define IRAM_DRAM_FENCE_2			0X02
 
 #define BOX_SIZE_512				0x200
 #define BOX_SIZE_1024				0x400
-- 
2.25.1