1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright 2019 NXP */ 3 4 #ifndef __DPAA2_QDMA_H 5 #define __DPAA2_QDMA_H 6 7 #define DPAA2_QDMA_STORE_SIZE 16 8 #define NUM_CH 8 9 #define DPAA2_QDMA_DEFAULT_PRIORITY 0 10 11 struct dpaa2_qdma_sd_d { 12 u32 rsv:32; 13 union { 14 struct { 15 u32 ssd:12; /* source stride distance */ 16 u32 sss:12; /* source stride size */ 17 u32 rsv1:8; 18 } sdf; 19 struct { 20 u32 dsd:12; /* Destination stride distance */ 21 u32 dss:12; /* Destination stride size */ 22 u32 rsv2:8; 23 } ddf; 24 } df; 25 u32 rbpcmd; /* Route-by-port command */ 26 u32 cmd; 27 } __attribute__((__packed__)); 28 29 /* Source descriptor command read transaction type for RBP=0: */ 30 /* coherent copy of cacheable memory */ 31 #define QDMA_SD_CMD_RDTTYPE_COHERENT (0xb << 28) 32 /* Destination descriptor command write transaction type for RBP=0: */ 33 /* coherent copy of cacheable memory */ 34 #define QDMA_DD_CMD_WRTTYPE_COHERENT (0x6 << 28) 35 #define LX2160_QDMA_DD_CMD_WRTTYPE_COHERENT (0xb << 28) 36 37 #define QMAN_FD_FMT_ENABLE BIT(0) /* frame list table enable */ 38 #define QMAN_FD_BMT_ENABLE BIT(15) /* bypass memory translation */ 39 #define QMAN_FD_BMT_DISABLE (0) /* bypass memory translation */ 40 #define QMAN_FD_SL_DISABLE (0) /* short lengthe disabled */ 41 #define QMAN_FD_SL_ENABLE BIT(14) /* short lengthe enabled */ 42 43 #define QDMA_FINAL_BIT_DISABLE (0) /* final bit disable */ 44 #define QDMA_FINAL_BIT_ENABLE BIT(31) /* final bit enable */ 45 46 #define QDMA_FD_SHORT_FORMAT BIT(11) /* short format */ 47 #define QDMA_FD_LONG_FORMAT (0) /* long format */ 48 #define QDMA_SER_DISABLE (8) /* no notification */ 49 #define QDMA_SER_CTX BIT(8) /* notification by FQD_CTX[fqid] */ 50 #define QDMA_SER_DEST (2 << 8) /* notification by destination desc */ 51 #define QDMA_SER_BOTH (3 << 8) /* source and dest notification */ 52 #define QDMA_FD_SPF_ENALBE BIT(30) /* source prefetch enable */ 53 54 #define QMAN_FD_VA_ENABLE BIT(14) /* Address used is virtual address */ 55 #define QMAN_FD_VA_DISABLE (0)/* Address used is a real address */ 56 /* Flow Context: 49bit physical address */ 57 #define QMAN_FD_CBMT_ENABLE BIT(15) 58 #define QMAN_FD_CBMT_DISABLE (0) /* Flow Context: 64bit virtual address */ 59 #define QMAN_FD_SC_DISABLE (0) /* stashing control */ 60 61 #define QDMA_FL_FMT_SBF (0x0) /* Single buffer frame */ 62 #define QDMA_FL_FMT_SGE (0x2) /* Scatter gather frame */ 63 #define QDMA_FL_BMT_ENABLE BIT(15) /* enable bypass memory translation */ 64 #define QDMA_FL_BMT_DISABLE (0x0) /* enable bypass memory translation */ 65 #define QDMA_FL_SL_LONG (0x0)/* long length */ 66 #define QDMA_FL_SL_SHORT (0x1) /* short length */ 67 #define QDMA_FL_F (0x1)/* last frame list bit */ 68 69 /*Description of Frame list table structure*/ 70 struct dpaa2_qdma_chan { 71 struct dpaa2_qdma_engine *qdma; 72 struct virt_dma_chan vchan; 73 struct virt_dma_desc vdesc; 74 enum dma_status status; 75 u32 fqid; 76 77 /* spinlock used by dpaa2 qdma driver */ 78 spinlock_t queue_lock; 79 struct dma_pool *fd_pool; 80 struct dma_pool *fl_pool; 81 struct dma_pool *sdd_pool; 82 83 struct list_head comp_used; 84 struct list_head comp_free; 85 86 }; 87 88 struct dpaa2_qdma_comp { 89 dma_addr_t fd_bus_addr; 90 dma_addr_t fl_bus_addr; 91 dma_addr_t desc_bus_addr; 92 struct dpaa2_fd *fd_virt_addr; 93 struct dpaa2_fl_entry *fl_virt_addr; 94 struct dpaa2_qdma_sd_d *desc_virt_addr; 95 struct dpaa2_qdma_chan *qchan; 96 struct virt_dma_desc vdesc; 97 struct list_head list; 98 }; 99 100 struct dpaa2_qdma_engine { 101 struct dma_device dma_dev; 102 u32 n_chans; 103 struct dpaa2_qdma_chan chans[NUM_CH]; 104 int qdma_wrtype_fixup; 105 int desc_allocated; 106 107 struct dpaa2_qdma_priv *priv; 108 }; 109 110 /* 111 * dpaa2_qdma_priv - driver private data 112 */ 113 struct dpaa2_qdma_priv { 114 int dpqdma_id; 115 116 struct iommu_domain *iommu_domain; 117 struct dpdmai_attr dpdmai_attr; 118 struct device *dev; 119 struct fsl_mc_io *mc_io; 120 struct fsl_mc_device *dpdmai_dev; 121 u8 num_pairs; 122 123 struct dpaa2_qdma_engine *dpaa2_qdma; 124 struct dpaa2_qdma_priv_per_prio *ppriv; 125 126 struct dpdmai_rx_queue_attr rx_queue_attr[DPDMAI_MAX_QUEUE_NUM]; 127 struct dpdmai_tx_queue_attr tx_queue_attr[DPDMAI_MAX_QUEUE_NUM]; 128 }; 129 130 struct dpaa2_qdma_priv_per_prio { 131 int req_fqid; 132 int rsp_fqid; 133 int prio; 134 135 struct dpaa2_io_store *store; 136 struct dpaa2_io_notification_ctx nctx; 137 138 struct dpaa2_qdma_priv *priv; 139 }; 140 141 static struct soc_device_attribute soc_fixup_tuning[] = { 142 { .family = "QorIQ LX2160A"}, 143 { /* sentinel */ } 144 }; 145 146 /* FD pool size: one FD + 3 Frame list + 2 source/destination descriptor */ 147 #define FD_POOL_SIZE (sizeof(struct dpaa2_fd) + \ 148 sizeof(struct dpaa2_fl_entry) * 3 + \ 149 sizeof(struct dpaa2_qdma_sd_d) * 2) 150 151 static void dpaa2_dpdmai_free_channels(struct dpaa2_qdma_engine *dpaa2_qdma); 152 static void dpaa2_dpdmai_free_comp(struct dpaa2_qdma_chan *qchan, 153 struct list_head *head); 154 #endif /* __DPAA2_QDMA_H */ 155