1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2019 MediaTek Inc. 3 * 4 * Author: Ryder Lee <ryder.lee@mediatek.com> 5 * Roy Luo <royluo@google.com> 6 * Lorenzo Bianconi <lorenzo@kernel.org> 7 * Felix Fietkau <nbd@nbd.name> 8 */ 9 10 #include "mt7615.h" 11 #include "../dma.h" 12 #include "mac.h" 13 14 static int 15 mt7622_init_tx_queues_multi(struct mt7615_dev *dev) 16 { 17 static const u8 wmm_queue_map[] = { 18 [IEEE80211_AC_BK] = MT7622_TXQ_AC0, 19 [IEEE80211_AC_BE] = MT7622_TXQ_AC1, 20 [IEEE80211_AC_VI] = MT7622_TXQ_AC2, 21 [IEEE80211_AC_VO] = MT7622_TXQ_AC3, 22 }; 23 int ret; 24 int i; 25 26 for (i = 0; i < ARRAY_SIZE(wmm_queue_map); i++) { 27 ret = mt76_init_tx_queue(&dev->mphy, i, wmm_queue_map[i], 28 MT7615_TX_RING_SIZE / 2, 29 MT_TX_RING_BASE, NULL, 0); 30 if (ret) 31 return ret; 32 } 33 34 ret = mt76_init_tx_queue(&dev->mphy, MT_TXQ_PSD, MT7622_TXQ_MGMT, 35 MT7615_TX_MGMT_RING_SIZE, 36 MT_TX_RING_BASE, NULL, 0); 37 if (ret) 38 return ret; 39 40 return mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7622_TXQ_MCU, 41 MT7615_TX_MCU_RING_SIZE, MT_TX_RING_BASE); 42 } 43 44 static int 45 mt7615_init_tx_queues(struct mt7615_dev *dev) 46 { 47 int ret; 48 49 ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7615_TXQ_FWDL, 50 MT7615_TX_FWDL_RING_SIZE, MT_TX_RING_BASE); 51 if (ret) 52 return ret; 53 54 if (!is_mt7615(&dev->mt76)) 55 return mt7622_init_tx_queues_multi(dev); 56 57 ret = mt76_connac_init_tx_queues(&dev->mphy, 0, MT7615_TX_RING_SIZE, 58 MT_TX_RING_BASE, NULL, 0); 59 if (ret) 60 return ret; 61 62 return mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7615_TXQ_MCU, 63 MT7615_TX_MCU_RING_SIZE, MT_TX_RING_BASE); 64 } 65 66 static int mt7615_poll_tx(struct napi_struct *napi, int budget) 67 { 68 struct mt7615_dev *dev; 69 70 dev = mt76_priv(napi->dev); 71 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { 72 napi_complete(napi); 73 queue_work(dev->mt76.wq, &dev->pm.wake_work); 74 return 0; 75 } 76 77 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], false); 78 if (napi_complete(napi)) 79 mt76_connac_irq_enable(&dev->mt76, 80 mt7615_tx_mcu_int_mask(dev)); 81 82 mt76_connac_pm_unref(&dev->mphy, &dev->pm); 83 84 return 0; 85 } 86 87 static int mt7615_poll_rx(struct napi_struct *napi, int budget) 88 { 89 struct mt7615_dev *dev; 90 int done; 91 92 dev = mt76_priv(napi->dev); 93 94 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { 95 napi_complete(napi); 96 queue_work(dev->mt76.wq, &dev->pm.wake_work); 97 return 0; 98 } 99 done = mt76_dma_rx_poll(napi, budget); 100 mt76_connac_pm_unref(&dev->mphy, &dev->pm); 101 102 return done; 103 } 104 105 int mt7615_wait_pdma_busy(struct mt7615_dev *dev) 106 { 107 struct mt76_dev *mdev = &dev->mt76; 108 109 if (!is_mt7663(mdev)) { 110 u32 mask = MT_PDMA_TX_BUSY | MT_PDMA_RX_BUSY; 111 u32 reg = mt7615_reg_map(dev, MT_PDMA_BUSY); 112 113 if (!mt76_poll_msec(dev, reg, mask, 0, 1000)) { 114 dev_err(mdev->dev, "PDMA engine busy\n"); 115 return -EIO; 116 } 117 118 return 0; 119 } 120 121 if (!mt76_poll_msec(dev, MT_PDMA_BUSY_STATUS, 122 MT_PDMA_TX_IDX_BUSY, 0, 1000)) { 123 dev_err(mdev->dev, "PDMA engine tx busy\n"); 124 return -EIO; 125 } 126 127 if (!mt76_poll_msec(dev, MT_PSE_PG_INFO, 128 MT_PSE_SRC_CNT, 0, 1000)) { 129 dev_err(mdev->dev, "PSE engine busy\n"); 130 return -EIO; 131 } 132 133 if (!mt76_poll_msec(dev, MT_PDMA_BUSY_STATUS, 134 MT_PDMA_BUSY_IDX, 0, 1000)) { 135 dev_err(mdev->dev, "PDMA engine busy\n"); 136 return -EIO; 137 } 138 139 return 0; 140 } 141 142 static void mt7622_dma_sched_init(struct mt7615_dev *dev) 143 { 144 u32 reg = mt7615_reg_map(dev, MT_DMASHDL_BASE); 145 int i; 146 147 mt76_rmw(dev, reg + MT_DMASHDL_PKT_MAX_SIZE, 148 MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE, 149 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) | 150 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8)); 151 152 for (i = 0; i <= 5; i++) 153 mt76_wr(dev, reg + MT_DMASHDL_GROUP_QUOTA(i), 154 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x10) | 155 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x800)); 156 157 mt76_wr(dev, reg + MT_DMASHDL_Q_MAP(0), 0x42104210); 158 mt76_wr(dev, reg + MT_DMASHDL_Q_MAP(1), 0x42104210); 159 mt76_wr(dev, reg + MT_DMASHDL_Q_MAP(2), 0x5); 160 mt76_wr(dev, reg + MT_DMASHDL_Q_MAP(3), 0); 161 162 mt76_wr(dev, reg + MT_DMASHDL_SCHED_SET0, 0x6012345f); 163 mt76_wr(dev, reg + MT_DMASHDL_SCHED_SET1, 0xedcba987); 164 } 165 166 static void mt7663_dma_sched_init(struct mt7615_dev *dev) 167 { 168 int i; 169 170 mt76_rmw(dev, MT_DMA_SHDL(MT_DMASHDL_PKT_MAX_SIZE), 171 MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE, 172 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) | 173 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8)); 174 175 /* enable refill control group 0, 1, 2, 4, 5 */ 176 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_REFILL), 0xffc80000); 177 /* enable group 0, 1, 2, 4, 5, 15 */ 178 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_OPTIONAL), 0x70068037); 179 180 /* each group min quota must larger then PLE_PKT_MAX_SIZE_NUM */ 181 for (i = 0; i < 5; i++) 182 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(i)), 183 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x40) | 184 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x800)); 185 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(5)), 186 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x40) | 187 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x40)); 188 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(15)), 189 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x20) | 190 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x20)); 191 192 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(0)), 0x42104210); 193 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(1)), 0x42104210); 194 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(2)), 0x00050005); 195 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(3)), 0); 196 /* ALTX0 and ALTX1 QID mapping to group 5 */ 197 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET0), 0x6012345f); 198 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET1), 0xedcba987); 199 } 200 201 void mt7615_dma_start(struct mt7615_dev *dev) 202 { 203 /* start dma engine */ 204 mt76_set(dev, MT_WPDMA_GLO_CFG, 205 MT_WPDMA_GLO_CFG_TX_DMA_EN | 206 MT_WPDMA_GLO_CFG_RX_DMA_EN | 207 MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE); 208 209 if (is_mt7622(&dev->mt76)) 210 mt7622_dma_sched_init(dev); 211 212 if (is_mt7663(&dev->mt76)) { 213 mt7663_dma_sched_init(dev); 214 215 mt76_wr(dev, MT_MCU2HOST_INT_ENABLE, MT7663_MCU_CMD_ERROR_MASK); 216 } 217 218 } 219 220 int mt7615_dma_init(struct mt7615_dev *dev) 221 { 222 int rx_ring_size = MT7615_RX_RING_SIZE; 223 u32 mask; 224 int ret; 225 226 mt76_dma_attach(&dev->mt76); 227 228 mt76_wr(dev, MT_WPDMA_GLO_CFG, 229 MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE | 230 MT_WPDMA_GLO_CFG_FIFO_LITTLE_ENDIAN | 231 MT_WPDMA_GLO_CFG_OMIT_TX_INFO); 232 233 mt76_rmw_field(dev, MT_WPDMA_GLO_CFG, 234 MT_WPDMA_GLO_CFG_TX_BT_SIZE_BIT0, 0x1); 235 236 mt76_rmw_field(dev, MT_WPDMA_GLO_CFG, 237 MT_WPDMA_GLO_CFG_TX_BT_SIZE_BIT21, 0x1); 238 239 mt76_rmw_field(dev, MT_WPDMA_GLO_CFG, 240 MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 0x3); 241 242 mt76_rmw_field(dev, MT_WPDMA_GLO_CFG, 243 MT_WPDMA_GLO_CFG_MULTI_DMA_EN, 0x3); 244 245 if (is_mt7615(&dev->mt76)) { 246 mt76_set(dev, MT_WPDMA_GLO_CFG, 247 MT_WPDMA_GLO_CFG_FIRST_TOKEN_ONLY); 248 249 mt76_wr(dev, MT_WPDMA_GLO_CFG1, 0x1); 250 mt76_wr(dev, MT_WPDMA_TX_PRE_CFG, 0xf0000); 251 mt76_wr(dev, MT_WPDMA_RX_PRE_CFG, 0xf7f0000); 252 mt76_wr(dev, MT_WPDMA_ABT_CFG, 0x4000026); 253 mt76_wr(dev, MT_WPDMA_ABT_CFG1, 0x18811881); 254 mt76_set(dev, 0x7158, BIT(16)); 255 mt76_clear(dev, 0x7000, BIT(23)); 256 } 257 258 mt76_wr(dev, MT_WPDMA_RST_IDX, ~0); 259 260 ret = mt7615_init_tx_queues(dev); 261 if (ret) 262 return ret; 263 264 /* init rx queues */ 265 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], 1, 266 MT7615_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, 267 MT_RX_RING_BASE); 268 if (ret) 269 return ret; 270 271 if (!is_mt7615(&dev->mt76)) 272 rx_ring_size /= 2; 273 274 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], 0, 275 rx_ring_size, MT_RX_BUF_SIZE, MT_RX_RING_BASE); 276 if (ret) 277 return ret; 278 279 mt76_wr(dev, MT_DELAY_INT_CFG, 0); 280 281 ret = mt76_init_queues(dev, mt7615_poll_rx); 282 if (ret < 0) 283 return ret; 284 285 netif_napi_add_tx(dev->mt76.tx_napi_dev, &dev->mt76.tx_napi, 286 mt7615_poll_tx); 287 napi_enable(&dev->mt76.tx_napi); 288 289 mt76_poll(dev, MT_WPDMA_GLO_CFG, 290 MT_WPDMA_GLO_CFG_TX_DMA_BUSY | 291 MT_WPDMA_GLO_CFG_RX_DMA_BUSY, 0, 1000); 292 293 /* enable interrupts for TX/RX rings */ 294 295 mask = MT_INT_RX_DONE_ALL | mt7615_tx_mcu_int_mask(dev); 296 if (is_mt7663(&dev->mt76)) 297 mask |= MT7663_INT_MCU_CMD; 298 else 299 mask |= MT_INT_MCU_CMD; 300 301 mt76_connac_irq_enable(&dev->mt76, mask); 302 303 mt7615_dma_start(dev); 304 305 return 0; 306 } 307 308 void mt7615_dma_cleanup(struct mt7615_dev *dev) 309 { 310 mt76_clear(dev, MT_WPDMA_GLO_CFG, 311 MT_WPDMA_GLO_CFG_TX_DMA_EN | 312 MT_WPDMA_GLO_CFG_RX_DMA_EN); 313 mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_SW_RESET); 314 315 mt76_dma_cleanup(&dev->mt76); 316 } 317