diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2026-02-19 03:40:05 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2026-03-24 18:49:30 +0300 |
| commit | 199443b4015238f46c8a578b84c3834a48246355 (patch) | |
| tree | 6b90d7cae21a974fc5d39da3eca2f099c91906a7 | |
| parent | 6d32fb25768946cf2bc8eef9ba77acf9406867ef (diff) | |
| download | linux-199443b4015238f46c8a578b84c3834a48246355.tar.xz | |
wifi: mt76: mt792x: add MT7902 WFDMA prefetch configuration
Configure the RX/TX ring prefetch setting for MT7902 PCIe device.
This is a prerequisite patch before enabling MT7902 PCIe support.
Co-developed-by: Xiong Huang <xiong.huang@mediatek.com>
Signed-off-by: Xiong Huang <xiong.huang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20260219004007.19733-9-sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt792x_dma.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c index 34f07bd3097d..002aece857b2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c @@ -103,6 +103,22 @@ static void mt792x_dma_prefetch(struct mt792x_dev *dev) mt76_wr(dev, MT_WFDMA0_TX_RING3_EXT_CTRL, PREFETCH(0x0400, 0x10)); mt76_wr(dev, MT_WFDMA0_TX_RING15_EXT_CTRL, PREFETCH(0x0500, 0x4)); mt76_wr(dev, MT_WFDMA0_TX_RING16_EXT_CTRL, PREFETCH(0x0540, 0x4)); + } else if (is_mt7902(&dev->mt76)) { + /* rx ring */ + mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0000, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING1_EXT_CTRL, PREFETCH(0x0040, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING2_EXT_CTRL, PREFETCH(0x0080, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING3_EXT_CTRL, PREFETCH(0x00c0, 0x4)); + /* tx ring */ + mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, PREFETCH(0x0100, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING1_EXT_CTRL, PREFETCH(0x0140, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING2_EXT_CTRL, PREFETCH(0x0180, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING3_EXT_CTRL, PREFETCH(0x01c0, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING4_EXT_CTRL, PREFETCH(0x0200, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING5_EXT_CTRL, PREFETCH(0x0240, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING6_EXT_CTRL, PREFETCH(0x0280, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING15_EXT_CTRL, PREFETCH(0x02c0, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING16_EXT_CTRL, PREFETCH(0x0300, 0x4)); } else { /* rx ring */ mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0, 0x4)); |