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wifi: mt76: mt7925: switch DMA init to common mt792x queue helpers

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Convert mt7925 DMA init to use the common mt792x queue allocation
helper and isolate the mt7925-specific prefetch/WFDMA setup.

This removes duplicated DMA setup code and prepares the path for
follow-up chip-specific DMA support with smaller deltas.

Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Sean Wang
2026-05-28 13:32:33 +02:00
committed by Felix Fietkau
parent b81028de36
commit 903f8b3bfa
2 changed files with 48 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mt7925/pci.c
+19 -38
View File
@@ -210,48 +210,29 @@ static u32 mt7925_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
return dev->bus_ops->rmw(mdev, addr, mask, val); return dev->bus_ops->rmw(mdev, addr, mask, val);
} }
static const struct mt792x_dma_layout mt7925_dma_layout = {
.tx_data0 = mt792x_dma_ring(MT7925_TXQ_BAND0,
MT7925_TX_RING_SIZE,
MT_TX_RING_BASE),
.tx_mcu = mt792x_dma_ring(MT7925_TXQ_MCU_WM,
MT7925_TX_MCU_RING_SIZE,
MT_TX_RING_BASE),
.tx_fwdl = mt792x_dma_ring(MT7925_TXQ_FWDL,
MT7925_TX_FWDL_RING_SIZE,
MT_TX_RING_BASE),
.rx_mcu = mt792x_dma_ring(MT7925_RXQ_MCU_WM,
MT7925_RX_MCU_RING_SIZE,
MT_RX_EVENT_RING_BASE),
.rx_data = mt792x_dma_ring(MT7925_RXQ_BAND0,
MT7925_RX_RING_SIZE,
MT_RX_DATA_RING_BASE),
};
static int mt7925_dma_init(struct mt792x_dev *dev) static int mt7925_dma_init(struct mt792x_dev *dev)
{ {
int ret; int ret;
mt76_dma_attach(&dev->mt76); ret = mt792x_dma_alloc_queues(dev, &mt7925_dma_layout);
ret = mt792x_dma_disable(dev, true);
if (ret)
return ret;
/* init tx queue */
ret = mt76_connac_init_tx_queues(dev->phy.mt76, MT7925_TXQ_BAND0,
MT7925_TX_RING_SIZE,
MT_TX_RING_BASE, NULL, 0);
if (ret)
return ret;
mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, 0x4);
/* command to WM */
ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7925_TXQ_MCU_WM,
MT7925_TX_MCU_RING_SIZE, MT_TX_RING_BASE);
if (ret)
return ret;
/* firmware download */
ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7925_TXQ_FWDL,
MT7925_TX_FWDL_RING_SIZE, MT_TX_RING_BASE);
if (ret)
return ret;
/* rx event */
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU],
MT7925_RXQ_MCU_WM, MT7925_RX_MCU_RING_SIZE,
MT_RX_BUF_SIZE, MT_RX_EVENT_RING_BASE);
if (ret)
return ret;
/* rx data */
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN],
MT7925_RXQ_BAND0, MT7925_RX_RING_SIZE,
MT_RX_BUF_SIZE, MT_RX_DATA_RING_BASE);
if (ret) if (ret)
return ret; return ret;
mt792x_dma.c
+29 -17
View File
@@ -144,21 +144,35 @@ int mt792x_dma_alloc_queues(struct mt792x_dev *dev,
EXPORT_SYMBOL_GPL(mt792x_dma_alloc_queues); EXPORT_SYMBOL_GPL(mt792x_dma_alloc_queues);
#define PREFETCH(base, depth) ((base) << 16 | (depth)) #define PREFETCH(base, depth) ((base) << 16 | (depth))
static void mt7925_dma_prefetch_setup(struct mt792x_dev *dev)
{
/* 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, 0x10));
mt76_wr(dev, MT_WFDMA0_TX_RING1_EXT_CTRL, PREFETCH(0x0200, 0x10));
mt76_wr(dev, MT_WFDMA0_TX_RING2_EXT_CTRL, PREFETCH(0x0300, 0x10));
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));
}
static void mt7925_wfdma_setup(struct mt792x_dev *dev)
{
mt76_rmw(dev, MT_UWFDMA0_GLO_CFG_EXT1, BIT(28), BIT(28));
mt76_set(dev, MT_WFDMA0_INT_RX_PRI, 0x0F00);
mt76_set(dev, MT_WFDMA0_INT_TX_PRI, 0x7F00);
}
static void mt792x_dma_prefetch(struct mt792x_dev *dev) static void mt792x_dma_prefetch(struct mt792x_dev *dev)
{ {
if (is_mt7925(&dev->mt76)) { if (is_mt7925(&dev->mt76)) {
/* rx ring */ mt7925_dma_prefetch_setup(dev);
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, 0x10));
mt76_wr(dev, MT_WFDMA0_TX_RING1_EXT_CTRL, PREFETCH(0x0200, 0x10));
mt76_wr(dev, MT_WFDMA0_TX_RING2_EXT_CTRL, PREFETCH(0x0300, 0x10));
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)) { } else if (is_mt7902(&dev->mt76)) {
/* rx ring */ /* rx ring */
mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0000, 0x4)); mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0000, 0x4));
@@ -222,11 +236,9 @@ int mt792x_dma_enable(struct mt792x_dev *dev)
mt76_set(dev, MT_WFDMA0_GLO_CFG, mt76_set(dev, MT_WFDMA0_GLO_CFG,
MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
if (is_mt7925(&dev->mt76)) { if (is_mt7925(&dev->mt76))
mt76_rmw(dev, MT_UWFDMA0_GLO_CFG_EXT1, BIT(28), BIT(28)); mt7925_wfdma_setup(dev);
mt76_set(dev, MT_WFDMA0_INT_RX_PRI, 0x0F00);
mt76_set(dev, MT_WFDMA0_INT_TX_PRI, 0x7F00);
}
mt76_set(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT); mt76_set(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT);
/* enable interrupts for TX/RX rings */ /* enable interrupts for TX/RX rings */