| // SPDX-License-Identifier: ISC |
| /* |
| * Copyright (C) 2022 MediaTek Inc. |
| */ |
| |
| #include "mt7996.h" |
| #include "../dma.h" |
| #include "mac.h" |
| |
| static int mt7996_poll_tx(struct napi_struct *napi, int budget) |
| { |
| struct mt7996_dev *dev; |
| |
| dev = container_of(napi, struct mt7996_dev, mt76.tx_napi); |
| |
| mt76_connac_tx_cleanup(&dev->mt76); |
| if (napi_complete_done(napi, 0)) |
| mt7996_irq_enable(dev, MT_INT_TX_DONE_MCU); |
| |
| return 0; |
| } |
| |
| static void mt7996_dma_config(struct mt7996_dev *dev) |
| { |
| #define Q_CONFIG(q, wfdma, int, id) do { \ |
| if (wfdma) \ |
| dev->q_wfdma_mask |= (1 << (q)); \ |
| dev->q_int_mask[(q)] = int; \ |
| dev->q_id[(q)] = id; \ |
| } while (0) |
| |
| #define MCUQ_CONFIG(q, wfdma, int, id) Q_CONFIG(q, (wfdma), (int), (id)) |
| #define RXQ_CONFIG(q, wfdma, int, id) Q_CONFIG(__RXQ(q), (wfdma), (int), (id)) |
| #define TXQ_CONFIG(q, wfdma, int, id) Q_CONFIG(__TXQ(q), (wfdma), (int), (id)) |
| |
| /* rx queue */ |
| RXQ_CONFIG(MT_RXQ_MCU, WFDMA0, MT_INT_RX_DONE_WM, MT7996_RXQ_MCU_WM); |
| RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA0, MT_INT_RX_DONE_WA, MT7996_RXQ_MCU_WA); |
| |
| /* band0/band1 */ |
| RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_RX_DONE_BAND0, MT7996_RXQ_BAND0); |
| RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA0, MT_INT_RX_DONE_WA_MAIN, MT7996_RXQ_MCU_WA_MAIN); |
| |
| /* band2 */ |
| RXQ_CONFIG(MT_RXQ_BAND2, WFDMA0, MT_INT_RX_DONE_BAND2, MT7996_RXQ_BAND2); |
| RXQ_CONFIG(MT_RXQ_BAND2_WA, WFDMA0, MT_INT_RX_DONE_WA_TRI, MT7996_RXQ_MCU_WA_TRI); |
| |
| /* data tx queue */ |
| TXQ_CONFIG(0, WFDMA0, MT_INT_TX_DONE_BAND0, MT7996_TXQ_BAND0); |
| TXQ_CONFIG(1, WFDMA0, MT_INT_TX_DONE_BAND1, MT7996_TXQ_BAND1); |
| TXQ_CONFIG(2, WFDMA0, MT_INT_TX_DONE_BAND2, MT7996_TXQ_BAND2); |
| |
| /* mcu tx queue */ |
| MCUQ_CONFIG(MT_MCUQ_WM, WFDMA0, MT_INT_TX_DONE_MCU_WM, MT7996_TXQ_MCU_WM); |
| MCUQ_CONFIG(MT_MCUQ_WA, WFDMA0, MT_INT_TX_DONE_MCU_WA, MT7996_TXQ_MCU_WA); |
| MCUQ_CONFIG(MT_MCUQ_FWDL, WFDMA0, MT_INT_TX_DONE_FWDL, MT7996_TXQ_FWDL); |
| } |
| |
| static void __mt7996_dma_prefetch(struct mt7996_dev *dev, u32 ofs) |
| { |
| #define PREFETCH(_base, _depth) ((_base) << 16 | (_depth)) |
| /* prefetch SRAM wrapping boundary for tx/rx ring. */ |
| mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_FWDL) + ofs, PREFETCH(0x0, 0x2)); |
| mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WM) + ofs, PREFETCH(0x20, 0x2)); |
| mt76_wr(dev, MT_TXQ_EXT_CTRL(0) + ofs, PREFETCH(0x40, 0x4)); |
| mt76_wr(dev, MT_TXQ_EXT_CTRL(1) + ofs, PREFETCH(0x80, 0x4)); |
| mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WA) + ofs, PREFETCH(0xc0, 0x2)); |
| mt76_wr(dev, MT_TXQ_EXT_CTRL(2) + ofs, PREFETCH(0xe0, 0x4)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MCU) + ofs, PREFETCH(0x120, 0x2)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MCU_WA) + ofs, PREFETCH(0x140, 0x2)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MAIN_WA) + ofs, PREFETCH(0x160, 0x2)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND2_WA) + ofs, PREFETCH(0x180, 0x2)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MAIN) + ofs, PREFETCH(0x1a0, 0x10)); |
| mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND2) + ofs, PREFETCH(0x2a0, 0x10)); |
| |
| mt76_set(dev, WF_WFDMA0_GLO_CFG_EXT1 + ofs, WF_WFDMA0_GLO_CFG_EXT1_CALC_MODE); |
| } |
| |
| void mt7996_dma_prefetch(struct mt7996_dev *dev) |
| { |
| __mt7996_dma_prefetch(dev, 0); |
| if (dev->hif2) |
| __mt7996_dma_prefetch(dev, MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0)); |
| } |
| |
| static void mt7996_dma_disable(struct mt7996_dev *dev, bool reset) |
| { |
| u32 hif1_ofs = 0; |
| |
| if (dev->hif2) |
| hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); |
| |
| if (reset) { |
| mt76_clear(dev, MT_WFDMA0_RST, |
| MT_WFDMA0_RST_DMASHDL_ALL_RST | |
| MT_WFDMA0_RST_LOGIC_RST); |
| |
| mt76_set(dev, MT_WFDMA0_RST, |
| MT_WFDMA0_RST_DMASHDL_ALL_RST | |
| MT_WFDMA0_RST_LOGIC_RST); |
| |
| if (dev->hif2) { |
| mt76_clear(dev, MT_WFDMA0_RST + hif1_ofs, |
| MT_WFDMA0_RST_DMASHDL_ALL_RST | |
| MT_WFDMA0_RST_LOGIC_RST); |
| |
| mt76_set(dev, MT_WFDMA0_RST + hif1_ofs, |
| MT_WFDMA0_RST_DMASHDL_ALL_RST | |
| MT_WFDMA0_RST_LOGIC_RST); |
| } |
| } |
| |
| /* disable */ |
| mt76_clear(dev, MT_WFDMA0_GLO_CFG, |
| MT_WFDMA0_GLO_CFG_TX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_RX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_OMIT_TX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2); |
| |
| if (dev->hif2) { |
| mt76_clear(dev, MT_WFDMA0_GLO_CFG + hif1_ofs, |
| MT_WFDMA0_GLO_CFG_TX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_RX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_OMIT_TX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2); |
| } |
| } |
| |
| static int mt7996_dma_enable(struct mt7996_dev *dev) |
| { |
| u32 hif1_ofs = 0; |
| u32 irq_mask; |
| |
| if (dev->hif2) |
| hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); |
| |
| /* reset dma idx */ |
| mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR, ~0); |
| if (dev->hif2) |
| mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR + hif1_ofs, ~0); |
| |
| /* configure delay interrupt off */ |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0, 0); |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG1, 0); |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG2, 0); |
| |
| if (dev->hif2) { |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0 + hif1_ofs, 0); |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG1 + hif1_ofs, 0); |
| mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG2 + hif1_ofs, 0); |
| } |
| |
| /* configure perfetch settings */ |
| mt7996_dma_prefetch(dev); |
| |
| /* hif wait WFDMA idle */ |
| mt76_set(dev, MT_WFDMA0_BUSY_ENA, |
| MT_WFDMA0_BUSY_ENA_TX_FIFO0 | |
| MT_WFDMA0_BUSY_ENA_TX_FIFO1 | |
| MT_WFDMA0_BUSY_ENA_RX_FIFO); |
| |
| if (dev->hif2) |
| mt76_set(dev, MT_WFDMA0_BUSY_ENA + hif1_ofs, |
| MT_WFDMA0_PCIE1_BUSY_ENA_TX_FIFO0 | |
| MT_WFDMA0_PCIE1_BUSY_ENA_TX_FIFO1 | |
| MT_WFDMA0_PCIE1_BUSY_ENA_RX_FIFO); |
| |
| mt76_poll(dev, MT_WFDMA_EXT_CSR_HIF_MISC, |
| MT_WFDMA_EXT_CSR_HIF_MISC_BUSY, 0, 1000); |
| |
| /* set WFDMA Tx/Rx */ |
| 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_OMIT_TX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2); |
| |
| /* GLO_CFG_EXT0 */ |
| mt76_set(dev, WF_WFDMA0_GLO_CFG_EXT0, |
| WF_WFDMA0_GLO_CFG_EXT0_RX_WB_RXD | |
| WF_WFDMA0_GLO_CFG_EXT0_WED_MERGE_MODE); |
| |
| /* GLO_CFG_EXT1 */ |
| mt76_set(dev, WF_WFDMA0_GLO_CFG_EXT1, |
| WF_WFDMA0_GLO_CFG_EXT1_TX_FCTRL_MODE); |
| |
| if (dev->hif2) { |
| mt76_set(dev, MT_WFDMA0_GLO_CFG + hif1_ofs, |
| MT_WFDMA0_GLO_CFG_TX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_RX_DMA_EN | |
| MT_WFDMA0_GLO_CFG_OMIT_TX_INFO | |
| MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2); |
| |
| /* GLO_CFG_EXT0 */ |
| mt76_set(dev, WF_WFDMA0_GLO_CFG_EXT0 + hif1_ofs, |
| WF_WFDMA0_GLO_CFG_EXT0_RX_WB_RXD | |
| WF_WFDMA0_GLO_CFG_EXT0_WED_MERGE_MODE); |
| |
| /* GLO_CFG_EXT1 */ |
| mt76_set(dev, WF_WFDMA0_GLO_CFG_EXT1 + hif1_ofs, |
| WF_WFDMA0_GLO_CFG_EXT1_TX_FCTRL_MODE); |
| |
| mt76_set(dev, MT_WFDMA_HOST_CONFIG, |
| MT_WFDMA_HOST_CONFIG_PDMA_BAND); |
| } |
| |
| if (dev->hif2) { |
| /* fix hardware limitation, pcie1's rx ring3 is not available |
| * so, redirect pcie0 rx ring3 interrupt to pcie1 |
| */ |
| mt76_set(dev, MT_WFDMA0_RX_INT_PCIE_SEL, |
| MT_WFDMA0_RX_INT_SEL_RING3); |
| |
| /* TODO: redirect rx ring6 interrupt to pcie0 for wed function */ |
| } |
| |
| /* enable interrupts for TX/RX rings */ |
| irq_mask = MT_INT_RX_DONE_MCU | |
| MT_INT_TX_DONE_MCU | |
| MT_INT_MCU_CMD; |
| |
| if (!dev->mphy.band_idx) |
| irq_mask |= MT_INT_BAND0_RX_DONE; |
| |
| if (dev->dbdc_support) |
| irq_mask |= MT_INT_BAND1_RX_DONE; |
| |
| if (dev->tbtc_support) |
| irq_mask |= MT_INT_BAND2_RX_DONE; |
| |
| mt7996_irq_enable(dev, irq_mask); |
| |
| return 0; |
| } |
| |
| int mt7996_dma_init(struct mt7996_dev *dev) |
| { |
| u32 hif1_ofs = 0; |
| int ret; |
| |
| mt7996_dma_config(dev); |
| |
| mt76_dma_attach(&dev->mt76); |
| |
| if (dev->hif2) |
| hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); |
| |
| mt7996_dma_disable(dev, true); |
| |
| /* init tx queue */ |
| ret = mt76_connac_init_tx_queues(dev->phy.mt76, |
| MT_TXQ_ID(dev->mphy.band_idx), |
| MT7996_TX_RING_SIZE, |
| MT_TXQ_RING_BASE(0), 0); |
| if (ret) |
| return ret; |
| |
| /* command to WM */ |
| ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, |
| MT_MCUQ_ID(MT_MCUQ_WM), |
| MT7996_TX_MCU_RING_SIZE, |
| MT_MCUQ_RING_BASE(MT_MCUQ_WM)); |
| if (ret) |
| return ret; |
| |
| /* command to WA */ |
| ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WA, |
| MT_MCUQ_ID(MT_MCUQ_WA), |
| MT7996_TX_MCU_RING_SIZE, |
| MT_MCUQ_RING_BASE(MT_MCUQ_WA)); |
| if (ret) |
| return ret; |
| |
| /* firmware download */ |
| ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, |
| MT_MCUQ_ID(MT_MCUQ_FWDL), |
| MT7996_TX_FWDL_RING_SIZE, |
| MT_MCUQ_RING_BASE(MT_MCUQ_FWDL)); |
| if (ret) |
| return ret; |
| |
| /* event from WM */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], |
| MT_RXQ_ID(MT_RXQ_MCU), |
| MT7996_RX_MCU_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_MCU)); |
| if (ret) |
| return ret; |
| |
| /* event from WA */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA], |
| MT_RXQ_ID(MT_RXQ_MCU_WA), |
| MT7996_RX_MCU_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_MCU_WA)); |
| if (ret) |
| return ret; |
| |
| /* rx data queue for band0 and band1 */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], |
| MT_RXQ_ID(MT_RXQ_MAIN), |
| MT7996_RX_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_MAIN)); |
| if (ret) |
| return ret; |
| |
| /* tx free notify event from WA for band0 */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN_WA], |
| MT_RXQ_ID(MT_RXQ_MAIN_WA), |
| MT7996_RX_MCU_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_MAIN_WA)); |
| if (ret) |
| return ret; |
| |
| if (dev->tbtc_support || (dev->mphy.band_idx == MT_BAND2)) { |
| /* rx data queue for band2 */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND2], |
| MT_RXQ_ID(MT_RXQ_BAND2), |
| MT7996_RX_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_BAND2) + hif1_ofs); |
| if (ret) |
| return ret; |
| |
| /* tx free notify event from WA for band2 |
| * use pcie0's rx ring3, but, redirect pcie0 rx ring3 interrupt to pcie1 |
| */ |
| ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND2_WA], |
| MT_RXQ_ID(MT_RXQ_BAND2_WA), |
| MT7996_RX_MCU_RING_SIZE, |
| MT_RX_BUF_SIZE, |
| MT_RXQ_RING_BASE(MT_RXQ_BAND2_WA)); |
| if (ret) |
| return ret; |
| } |
| |
| ret = mt76_init_queues(dev, mt76_dma_rx_poll); |
| if (ret < 0) |
| return ret; |
| |
| netif_tx_napi_add(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi, |
| mt7996_poll_tx, NAPI_POLL_WEIGHT); |
| napi_enable(&dev->mt76.tx_napi); |
| |
| mt7996_dma_enable(dev); |
| |
| return 0; |
| } |
| |
| void mt7996_dma_cleanup(struct mt7996_dev *dev) |
| { |
| mt7996_dma_disable(dev, true); |
| |
| mt76_dma_cleanup(&dev->mt76); |
| } |