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-rw-r--r--drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h153
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h
new file mode 100644
index 000000000..7d571849c
--- /dev/null
+++ b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright 2019 NXP */
+
+#ifndef __DPAA2_QDMA_H
+#define __DPAA2_QDMA_H
+
+#define DPAA2_QDMA_STORE_SIZE 16
+#define NUM_CH 8
+
+struct dpaa2_qdma_sd_d {
+ u32 rsv:32;
+ union {
+ struct {
+ u32 ssd:12; /* souce stride distance */
+ u32 sss:12; /* souce stride size */
+ u32 rsv1:8;
+ } sdf;
+ struct {
+ u32 dsd:12; /* Destination stride distance */
+ u32 dss:12; /* Destination stride size */
+ u32 rsv2:8;
+ } ddf;
+ } df;
+ u32 rbpcmd; /* Route-by-port command */
+ u32 cmd;
+} __attribute__((__packed__));
+
+/* Source descriptor command read transaction type for RBP=0: */
+/* coherent copy of cacheable memory */
+#define QDMA_SD_CMD_RDTTYPE_COHERENT (0xb << 28)
+/* Destination descriptor command write transaction type for RBP=0: */
+/* coherent copy of cacheable memory */
+#define QDMA_DD_CMD_WRTTYPE_COHERENT (0x6 << 28)
+#define LX2160_QDMA_DD_CMD_WRTTYPE_COHERENT (0xb << 28)
+
+#define QMAN_FD_FMT_ENABLE BIT(0) /* frame list table enable */
+#define QMAN_FD_BMT_ENABLE BIT(15) /* bypass memory translation */
+#define QMAN_FD_BMT_DISABLE (0) /* bypass memory translation */
+#define QMAN_FD_SL_DISABLE (0) /* short lengthe disabled */
+#define QMAN_FD_SL_ENABLE BIT(14) /* short lengthe enabled */
+
+#define QDMA_FINAL_BIT_DISABLE (0) /* final bit disable */
+#define QDMA_FINAL_BIT_ENABLE BIT(31) /* final bit enable */
+
+#define QDMA_FD_SHORT_FORMAT BIT(11) /* short format */
+#define QDMA_FD_LONG_FORMAT (0) /* long format */
+#define QDMA_SER_DISABLE (8) /* no notification */
+#define QDMA_SER_CTX BIT(8) /* notification by FQD_CTX[fqid] */
+#define QDMA_SER_DEST (2 << 8) /* notification by destination desc */
+#define QDMA_SER_BOTH (3 << 8) /* soruce and dest notification */
+#define QDMA_FD_SPF_ENALBE BIT(30) /* source prefetch enable */
+
+#define QMAN_FD_VA_ENABLE BIT(14) /* Address used is virtual address */
+#define QMAN_FD_VA_DISABLE (0)/* Address used is a real address */
+/* Flow Context: 49bit physical address */
+#define QMAN_FD_CBMT_ENABLE BIT(15)
+#define QMAN_FD_CBMT_DISABLE (0) /* Flow Context: 64bit virtual address */
+#define QMAN_FD_SC_DISABLE (0) /* stashing control */
+
+#define QDMA_FL_FMT_SBF (0x0) /* Single buffer frame */
+#define QDMA_FL_FMT_SGE (0x2) /* Scatter gather frame */
+#define QDMA_FL_BMT_ENABLE BIT(15) /* enable bypass memory translation */
+#define QDMA_FL_BMT_DISABLE (0x0) /* enable bypass memory translation */
+#define QDMA_FL_SL_LONG (0x0)/* long length */
+#define QDMA_FL_SL_SHORT (0x1) /* short length */
+#define QDMA_FL_F (0x1)/* last frame list bit */
+
+/*Description of Frame list table structure*/
+struct dpaa2_qdma_chan {
+ struct dpaa2_qdma_engine *qdma;
+ struct virt_dma_chan vchan;
+ struct virt_dma_desc vdesc;
+ enum dma_status status;
+ u32 fqid;
+
+ /* spinlock used by dpaa2 qdma driver */
+ spinlock_t queue_lock;
+ struct dma_pool *fd_pool;
+ struct dma_pool *fl_pool;
+ struct dma_pool *sdd_pool;
+
+ struct list_head comp_used;
+ struct list_head comp_free;
+
+};
+
+struct dpaa2_qdma_comp {
+ dma_addr_t fd_bus_addr;
+ dma_addr_t fl_bus_addr;
+ dma_addr_t desc_bus_addr;
+ struct dpaa2_fd *fd_virt_addr;
+ struct dpaa2_fl_entry *fl_virt_addr;
+ struct dpaa2_qdma_sd_d *desc_virt_addr;
+ struct dpaa2_qdma_chan *qchan;
+ struct virt_dma_desc vdesc;
+ struct list_head list;
+};
+
+struct dpaa2_qdma_engine {
+ struct dma_device dma_dev;
+ u32 n_chans;
+ struct dpaa2_qdma_chan chans[NUM_CH];
+ int qdma_wrtype_fixup;
+ int desc_allocated;
+
+ struct dpaa2_qdma_priv *priv;
+};
+
+/*
+ * dpaa2_qdma_priv - driver private data
+ */
+struct dpaa2_qdma_priv {
+ int dpqdma_id;
+
+ struct iommu_domain *iommu_domain;
+ struct dpdmai_attr dpdmai_attr;
+ struct device *dev;
+ struct fsl_mc_io *mc_io;
+ struct fsl_mc_device *dpdmai_dev;
+ u8 num_pairs;
+
+ struct dpaa2_qdma_engine *dpaa2_qdma;
+ struct dpaa2_qdma_priv_per_prio *ppriv;
+
+ struct dpdmai_rx_queue_attr rx_queue_attr[DPDMAI_PRIO_NUM];
+ u32 tx_fqid[DPDMAI_PRIO_NUM];
+};
+
+struct dpaa2_qdma_priv_per_prio {
+ int req_fqid;
+ int rsp_fqid;
+ int prio;
+
+ struct dpaa2_io_store *store;
+ struct dpaa2_io_notification_ctx nctx;
+
+ struct dpaa2_qdma_priv *priv;
+};
+
+static struct soc_device_attribute soc_fixup_tuning[] = {
+ { .family = "QorIQ LX2160A"},
+ { },
+};
+
+/* FD pool size: one FD + 3 Frame list + 2 source/destination descriptor */
+#define FD_POOL_SIZE (sizeof(struct dpaa2_fd) + \
+ sizeof(struct dpaa2_fl_entry) * 3 + \
+ sizeof(struct dpaa2_qdma_sd_d) * 2)
+
+static void dpaa2_dpdmai_free_channels(struct dpaa2_qdma_engine *dpaa2_qdma);
+static void dpaa2_dpdmai_free_comp(struct dpaa2_qdma_chan *qchan,
+ struct list_head *head);
+#endif /* __DPAA2_QDMA_H */