diff options
| author | Trevor Wu <trevor.wu@mediatek.com> | 2023-08-03 15:50:28 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-08-04 13:30:41 +0100 |
| commit | 1d54134df47684ee29d4d4bbe28174a4282389e0 (patch) | |
| tree | 8b731586f7cb7162206b0b08e9bcd7f40c482863 /sound/soc/sof/mediatek | |
| parent | 9f0d4d47c7915ce21bde4a4974a7a6307e244a6d (diff) | |
| download | linux-stable-1d54134df47684ee29d4d4bbe28174a4282389e0.tar.gz linux-stable-1d54134df47684ee29d4d4bbe28174a4282389e0.tar.bz2 linux-stable-1d54134df47684ee29d4d4bbe28174a4282389e0.zip | |
ASoC: SOF: mediatek: mt8186 modify dram type as non-cache
To prevent incorrect access between the host and DSP sides, we need to
modify DRAM as a non-cache memory type. Additionally, we can retrieve
the size of shared DMA from the device tree.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Yaochun Hung <yc.hung@mediatek.com>
Reviewed-by: Kuan-Hsun Cheng <Allen-KH.Cheng@mediatek.com>
Link: https://lore.kernel.org/r/20230803075028.32170-1-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/mediatek')
| -rw-r--r-- | sound/soc/sof/mediatek/mt8186/mt8186.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c index 3e0ea0e109e2..f587edf9e0a7 100644 --- a/sound/soc/sof/mediatek/mt8186/mt8186.c +++ b/sound/soc/sof/mediatek/mt8186/mt8186.c @@ -111,6 +111,14 @@ static int platform_parse_resource(struct platform_device *pdev, void *data) dev_dbg(dev, "DMA %pR\n", &res); + adsp->pa_shared_dram = (phys_addr_t)res.start; + adsp->shared_size = resource_size(&res); + if (adsp->pa_shared_dram & DRAM_REMAP_MASK) { + dev_err(dev, "adsp shared dma memory(%#x) is not 4K-aligned\n", + (u32)adsp->pa_shared_dram); + return -EINVAL; + } + ret = of_reserved_mem_device_init(dev); if (ret) { dev_err(dev, "of_reserved_mem_device_init failed\n"); @@ -244,23 +252,18 @@ static int adsp_shared_base_ioremap(struct platform_device *pdev, void *data) { struct device *dev = &pdev->dev; struct mtk_adsp_chip_info *adsp = data; - u32 shared_size; /* remap shared-dram base to be non-cachable */ - shared_size = TOTAL_SIZE_SHARED_DRAM_FROM_TAIL; - adsp->pa_shared_dram = adsp->pa_dram + adsp->dramsize - shared_size; - if (adsp->va_dram) { - adsp->shared_dram = adsp->va_dram + DSP_DRAM_SIZE - shared_size; - } else { - adsp->shared_dram = devm_ioremap(dev, adsp->pa_shared_dram, - shared_size); - if (!adsp->shared_dram) { - dev_err(dev, "ioremap failed for shared DRAM\n"); - return -ENOMEM; - } + adsp->shared_dram = devm_ioremap(dev, adsp->pa_shared_dram, + adsp->shared_size); + if (!adsp->shared_dram) { + dev_err(dev, "failed to ioremap base %pa size %#x\n", + adsp->shared_dram, adsp->shared_size); + return -ENOMEM; } - dev_dbg(dev, "shared-dram vbase=%p, phy addr :%pa, size=%#x\n", - adsp->shared_dram, &adsp->pa_shared_dram, shared_size); + + dev_dbg(dev, "shared-dram vbase=%p, phy addr :%pa, size=%#x\n", + adsp->shared_dram, &adsp->pa_shared_dram, adsp->shared_size); return 0; } @@ -307,9 +310,12 @@ static int mt8186_dsp_probe(struct snd_sof_dev *sdev) return -ENOMEM; } - sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, - priv->adsp->pa_dram, - priv->adsp->dramsize); + priv->adsp->va_sram = sdev->bar[SOF_FW_BLK_TYPE_IRAM]; + + sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap(sdev->dev, + priv->adsp->pa_dram, + priv->adsp->dramsize); + if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) { dev_err(sdev->dev, "failed to ioremap base %pa size %#x\n", &priv->adsp->pa_dram, priv->adsp->dramsize); |