// SPDX-License-Identifier: ISC /* Copyright (C) 2020 MediaTek Inc. */ #include "mt7915.h" #include "../dma.h" #include "mac.h" static int mt7915_init_tx_queues(struct mt7915_phy *phy, int idx, int n_desc, int ring_base) { struct mt7915_dev *dev = phy->dev; int i, err; if (mtk_wed_device_active(&phy->dev->mt76.mmio.wed)) { ring_base = MT_WED_TX_RING_BASE; idx -= MT_TXQ_ID(0); } err = mt76_init_tx_queue(phy->mt76, 0, idx, n_desc, ring_base, MT_WED_Q_TX(idx)); if (err < 0) return err; for (i = 0; i <= MT_TXQ_PSD; i++) phy->mt76->q_tx[i] = phy->mt76->q_tx[0]; return 0; } static void mt7915_tx_cleanup(struct mt7915_dev *dev) { mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], false); mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WA], false); } static int mt7915_poll_tx(struct napi_struct *napi, int budget) { struct mt7915_dev *dev; dev = container_of(napi, struct mt7915_dev, mt76.tx_napi); mt7915_tx_cleanup(dev); if (napi_complete_done(napi, 0)) mt7915_irq_enable(dev, MT_INT_TX_DONE_MCU); return 0; } static void mt7915_dma_config(struct mt7915_dev *dev) { #define Q_CONFIG(q, wfdma, int, id) do { \ if (wfdma) \ dev->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)) if (is_mt7915(&dev->mt76)) { RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_RX_DONE_BAND0, MT7915_RXQ_BAND0); RXQ_CONFIG(MT_RXQ_MCU, WFDMA1, MT_INT_RX_DONE_WM, MT7915_RXQ_MCU_WM); RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA1, MT_INT_RX_DONE_WA, MT7915_RXQ_MCU_WA); RXQ_CONFIG(MT_RXQ_EXT, WFDMA0, MT_INT_RX_DONE_BAND1, MT7915_RXQ_BAND1); RXQ_CONFIG(MT_RXQ_EXT_WA, WFDMA1, MT_INT_RX_DONE_WA_EXT, MT7915_RXQ_MCU_WA_EXT); RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA1, MT_INT_RX_DONE_WA_MAIN, MT7915_RXQ_MCU_WA); TXQ_CONFIG(0, WFDMA1, MT_INT_TX_DONE_BAND0, MT7915_TXQ_BAND0); TXQ_CONFIG(1, WFDMA1, MT_INT_TX_DONE_BAND1, MT7915_TXQ_BAND1); MCUQ_CONFIG(MT_MCUQ_WM, WFDMA1, MT_INT_TX_DONE_MCU_WM, MT7915_TXQ_MCU_WM); MCUQ_CONFIG(MT_MCUQ_WA, WFDMA1, MT_INT_TX_DONE_MCU_WA, MT7915_TXQ_MCU_WA); MCUQ_CONFIG(MT_MCUQ_FWDL, WFDMA1, MT_INT_TX_DONE_FWDL, MT7915_TXQ_FWDL); } else { RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_RX_DONE_BAND0_MT7916, MT7916_RXQ_BAND0); RXQ_CONFIG(MT_RXQ_MCU, WFDMA0, MT_INT_RX_DONE_WM, MT7916_RXQ_MCU_WM); RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA0, MT_INT_RX_DONE_WA, MT7916_RXQ_MCU_WA); RXQ_CONFIG(MT_RXQ_EXT, WFDMA0, MT_INT_RX_DONE_BAND1_MT7916, MT7916_RXQ_BAND1); RXQ_CONFIG(MT_RXQ_EXT_WA, WFDMA0, MT_INT_RX_DONE_WA_EXT_MT7916, MT7916_RXQ_MCU_WA_EXT); RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA0, MT_INT_RX_DONE_WA_MAIN_MT7916, MT7916_RXQ_MCU_WA_MAIN); TXQ_CONFIG(0, WFDMA0, MT_INT_TX_DONE_BAND0, MT7915_TXQ_BAND0); TXQ_CONFIG(1, WFDMA0, MT_INT_TX_DONE_BAND1, MT7915_TXQ_BAND1); MCUQ_CONFIG(MT_MCUQ_WM, WFDMA0, MT_INT_TX_DONE_MCU_WM, MT7915_TXQ_MCU_WM); MCUQ_CONFIG(MT_MCUQ_WA, WFDMA0, MT_INT_TX_DONE_MCU_WA_MT7916, MT7915_TXQ_MCU_WA); MCUQ_CONFIG(MT_MCUQ_FWDL, WFDMA0, MT_INT_TX_DONE_FWDL, MT7915_TXQ_FWDL); } } static void __mt7915_dma_prefetch(struct mt7915_dev *dev, u32 ofs) { #define PREFETCH(_base, _depth) ((_base) << 16 | (_depth)) u32 base = 0; /* prefetch SRAM wrapping boundary for tx/rx ring. */ mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_FWDL) + ofs, PREFETCH(0x0, 0x4)); mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WM) + ofs, PREFETCH(0x40, 0x4)); mt76_wr(dev, MT_TXQ_EXT_CTRL(0) + ofs, PREFETCH(0x80, 0x4)); mt76_wr(dev, MT_TXQ_EXT_CTRL(1) + ofs, PREFETCH(0xc0, 0x4)); mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WA) + ofs, PREFETCH(0x100, 0x4)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_MCU) + ofs, PREFETCH(0x140, 0x4)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_MCU_WA) + ofs, PREFETCH(0x180, 0x4)); if (!is_mt7915(&dev->mt76)) { mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_MAIN_WA) + ofs, PREFETCH(0x1c0, 0x4)); base = 0x40; } mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_EXT_WA) + ofs, PREFETCH(0x1c0 + base, 0x4)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_MAIN) + ofs, PREFETCH(0x200 + base, 0x4)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_EXT) + ofs, PREFETCH(0x240 + base, 0x4)); /* for mt7915, the ring which is next the last * used ring must be initialized. */ if (is_mt7915(&dev->mt76)) { ofs += 0x4; mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WA) + ofs, PREFETCH(0x140, 0x0)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_EXT_WA) + ofs, PREFETCH(0x200 + base, 0x0)); mt76_wr(dev, MT_RXQ_EXT_CTRL(MT_RXQ_EXT) + ofs, PREFETCH(0x280 + base, 0x0)); } } void mt7915_dma_prefetch(struct mt7915_dev *dev) { __mt7915_dma_prefetch(dev, 0); if (dev->hif2) __mt7915_dma_prefetch(dev, MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0)); } static void mt7915_dma_disable(struct mt7915_dev *dev, bool rst) { struct mt76_dev *mdev = &dev->mt76; u32 hif1_ofs = 0; if (dev->hif2) hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); /* reset */ if (rst) { 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 (is_mt7915(mdev)) { mt76_clear(dev, MT_WFDMA1_RST, MT_WFDMA1_RST_DMASHDL_ALL_RST | MT_WFDMA1_RST_LOGIC_RST); mt76_set(dev, MT_WFDMA1_RST, MT_WFDMA1_RST_DMASHDL_ALL_RST | MT_WFDMA1_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); if (is_mt7915(mdev)) { mt76_clear(dev, MT_WFDMA1_RST + hif1_ofs, MT_WFDMA1_RST_DMASHDL_ALL_RST | MT_WFDMA1_RST_LOGIC_RST); mt76_set(dev, MT_WFDMA1_RST + hif1_ofs, MT_WFDMA1_RST_DMASHDL_ALL_RST | MT_WFDMA1_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 (is_mt7915(mdev)) mt76_clear(dev, MT_WFDMA1_GLO_CFG, MT_WFDMA1_GLO_CFG_TX_DMA_EN | MT_WFDMA1_GLO_CFG_RX_DMA_EN | MT_WFDMA1_GLO_CFG_OMIT_TX_INFO | MT_WFDMA1_GLO_CFG_OMIT_RX_INFO | MT_WFDMA1_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); if (is_mt7915(mdev)) mt76_clear(dev, MT_WFDMA1_GLO_CFG + hif1_ofs, MT_WFDMA1_GLO_CFG_TX_DMA_EN | MT_WFDMA1_GLO_CFG_RX_DMA_EN | MT_WFDMA1_GLO_CFG_OMIT_TX_INFO | MT_WFDMA1_GLO_CFG_OMIT_RX_INFO | MT_WFDMA1_GLO_CFG_OMIT_RX_INFO_PFET2); } } static int mt7915_dma_enable(struct mt7915_dev *dev) { struct mt76_dev *mdev = &dev->mt76; 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 (is_mt7915(mdev)) mt76_wr(dev, MT_WFDMA1_RST_DTX_PTR, ~0); if (dev->hif2) { mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR + hif1_ofs, ~0); if (is_mt7915(mdev)) mt76_wr(dev, MT_WFDMA1_RST_DTX_PTR + hif1_ofs, ~0); } /* configure delay interrupt off */ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0, 0); if (is_mt7915(mdev)) { mt76_wr(dev, MT_WFDMA1_PRI_DLY_INT_CFG0, 0); } else { 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); if (is_mt7915(mdev)) { mt76_wr(dev, MT_WFDMA1_PRI_DLY_INT_CFG0 + hif1_ofs, 0); } else { 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 */ mt7915_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 (is_mt7915(mdev)) mt76_set(dev, MT_WFDMA1_BUSY_ENA, MT_WFDMA1_BUSY_ENA_TX_FIFO0 | MT_WFDMA1_BUSY_ENA_TX_FIFO1 | MT_WFDMA1_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); if (is_mt7915(mdev)) mt76_set(dev, MT_WFDMA1_BUSY_ENA + hif1_ofs, MT_WFDMA1_PCIE1_BUSY_ENA_TX_FIFO0 | MT_WFDMA1_PCIE1_BUSY_ENA_TX_FIFO1 | MT_WFDMA1_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); if (is_mt7915(mdev)) mt76_set(dev, MT_WFDMA1_GLO_CFG, MT_WFDMA1_GLO_CFG_TX_DMA_EN | MT_WFDMA1_GLO_CFG_RX_DMA_EN | MT_WFDMA1_GLO_CFG_OMIT_TX_INFO | MT_WFDMA1_GLO_CFG_OMIT_RX_INFO); 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); if (is_mt7915(mdev)) mt76_set(dev, MT_WFDMA1_GLO_CFG + hif1_ofs, MT_WFDMA1_GLO_CFG_TX_DMA_EN | MT_WFDMA1_GLO_CFG_RX_DMA_EN | MT_WFDMA1_GLO_CFG_OMIT_TX_INFO | MT_WFDMA1_GLO_CFG_OMIT_RX_INFO); mt76_set(dev, MT_WFDMA_HOST_CONFIG, MT_WFDMA_HOST_CONFIG_PDMA_BAND); } /* enable interrupts for TX/RX rings */ irq_mask = MT_INT_RX_DONE_MCU | MT_INT_TX_DONE_MCU | MT_INT_MCU_CMD; if (!dev->phy.band_idx) irq_mask |= MT_INT_BAND0_RX_DONE; if (dev->dbdc_support || dev->phy.band_idx) irq_mask |= MT_INT_BAND1_RX_DONE; if (mtk_wed_device_active(&dev->mt76.mmio.wed)) { u32 wed_irq_mask = irq_mask; wed_irq_mask |= MT_INT_TX_DONE_BAND0 | MT_INT_TX_DONE_BAND1; mt76_wr(dev, MT_INT_WED_MASK_CSR, wed_irq_mask); mtk_wed_device_start(&dev->mt76.mmio.wed, wed_irq_mask); } mt7915_irq_enable(dev, irq_mask); return 0; } int mt7915_dma_init(struct mt7915_dev *dev, struct mt7915_phy *phy2) { struct mt76_dev *mdev = &dev->mt76; u32 wa_rx_base, wa_rx_idx; u32 hif1_ofs = 0; int ret; mt7915_dma_config(dev); mt76_dma_attach(&dev->mt76); if (dev->hif2) hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); mt7915_dma_disable(dev, true); if (mtk_wed_device_active(&dev->mt76.mmio.wed)) { mt76_set(dev, MT_WFDMA_HOST_CONFIG, MT_WFDMA_HOST_CONFIG_WED); mt76_wr(dev, MT_WFDMA_WED_RING_CONTROL, FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_TX0, 18) | FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_TX1, 19) | FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_RX1, 1)); } else { mt76_clear(dev, MT_WFDMA_HOST_CONFIG, MT_WFDMA_HOST_CONFIG_WED); } /* init tx queue */ ret = mt7915_init_tx_queues(&dev->phy, MT_TXQ_ID(dev->phy.band_idx), MT7915_TX_RING_SIZE, MT_TXQ_RING_BASE(0)); if (ret) return ret; if (phy2) { ret = mt7915_init_tx_queues(phy2, MT_TXQ_ID(phy2->band_idx), MT7915_TX_RING_SIZE, MT_TXQ_RING_BASE(1)); if (ret) return ret; } /* command to WM */ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT_MCUQ_ID(MT_MCUQ_WM), MT7915_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), MT7915_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), MT7915_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), MT7915_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, MT_RXQ_RING_BASE(MT_RXQ_MCU)); if (ret) return ret; /* event from WA */ if (mtk_wed_device_active(&dev->mt76.mmio.wed)) { wa_rx_base = MT_WED_RX_RING_BASE; wa_rx_idx = MT7915_RXQ_MCU_WA; dev->mt76.q_rx[MT_RXQ_MCU_WA].flags = MT_WED_Q_TXFREE; } else { wa_rx_base = MT_RXQ_RING_BASE(MT_RXQ_MCU_WA); wa_rx_idx = MT_RXQ_ID(MT_RXQ_MCU_WA); } ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA], wa_rx_idx, MT7915_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, wa_rx_base); if (ret) return ret; /* rx data queue for band0 */ if (!dev->phy.band_idx) { ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], MT_RXQ_ID(MT_RXQ_MAIN), MT7915_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 */ if (!is_mt7915(mdev)) { ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN_WA], MT_RXQ_ID(MT_RXQ_MAIN_WA), MT7915_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, MT_RXQ_RING_BASE(MT_RXQ_MAIN_WA)); if (ret) return ret; } if (dev->dbdc_support || dev->phy.band_idx) { /* rx data queue for band1 */ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_EXT], MT_RXQ_ID(MT_RXQ_EXT), MT7915_RX_RING_SIZE, MT_RX_BUF_SIZE, MT_RXQ_RING_BASE(MT_RXQ_EXT) + hif1_ofs); if (ret) return ret; /* tx free notify event from WA for band1 */ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_EXT_WA], MT_RXQ_ID(MT_RXQ_EXT_WA), MT7915_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, MT_RXQ_RING_BASE(MT_RXQ_EXT_WA) + hif1_ofs); if (ret) return ret; } ret = mt76_init_queues(dev, mt76_dma_rx_poll); if (ret < 0) return ret; netif_napi_add_tx(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi, mt7915_poll_tx); napi_enable(&dev->mt76.tx_napi); mt7915_dma_enable(dev); return 0; } void mt7915_dma_cleanup(struct mt7915_dev *dev) { mt7915_dma_disable(dev, true); mt76_dma_cleanup(&dev->mt76); }