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/* 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
#define DPAA2_QDMA_DEFAULT_PRIORITY 0
struct dpaa2_qdma_sd_d {
u32 rsv:32;
union {
struct {
u32 ssd:12; /* source stride distance */
u32 sss:12; /* source 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) /* source 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_MAX_QUEUE_NUM];
struct dpdmai_tx_queue_attr tx_queue_attr[DPDMAI_MAX_QUEUE_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"},
{ /* sentinel */ }
};
/* 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 */
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