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Signed-off-by: Sai Sree Kartheek Adivi Reviewed-by: Frank Li --- drivers/dma/ti/k3-udma.c | 259 +------------------------------------- drivers/dma/ti/k3-udma.h | 265 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 266 insertions(+), 258 deletions(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index a1b99097a94ad..d7c153c5321ea 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -24,8 +24,8 @@ #include #include #include -#include #include +#include #include #include @@ -33,28 +33,6 @@ #include "k3-udma.h" #include "k3-psil-priv.h" -struct udma_static_tr { - u8 elsize; /* RPSTR0 */ - u16 elcnt; /* RPSTR0 */ - u16 bstcnt; /* RPSTR1 */ -}; - -struct udma_chan; - -enum k3_dma_type { - DMA_TYPE_UDMA = 0, - DMA_TYPE_BCDMA, - DMA_TYPE_PKTDMA, -}; - -enum udma_mmr { - MMR_GCFG = 0, - MMR_BCHANRT, - MMR_RCHANRT, - MMR_TCHANRT, - MMR_LAST, -}; - static const char * const mmr_names[] = { [MMR_GCFG] = "gcfg", [MMR_BCHANRT] = "bchanrt", @@ -62,234 +40,6 @@ static const char * const mmr_names[] = { [MMR_TCHANRT] = "tchanrt", }; -struct udma_tchan { - void __iomem *reg_rt; - - int id; - struct k3_ring *t_ring; /* Transmit ring */ - struct k3_ring *tc_ring; /* Transmit Completion ring */ - int tflow_id; /* applicable only for PKTDMA */ - -}; - -#define udma_bchan udma_tchan - -struct udma_rflow { - int id; - struct k3_ring *fd_ring; /* Free Descriptor ring */ - struct k3_ring *r_ring; /* Receive ring */ -}; - -struct udma_rchan { - void __iomem *reg_rt; - - int id; -}; - -struct udma_oes_offsets { - /* K3 UDMA Output Event Offset */ - u32 udma_rchan; - - /* BCDMA Output Event Offsets */ - u32 bcdma_bchan_data; - u32 bcdma_bchan_ring; - u32 bcdma_tchan_data; - u32 bcdma_tchan_ring; - u32 bcdma_rchan_data; - u32 bcdma_rchan_ring; - - /* PKTDMA Output Event Offsets */ - u32 pktdma_tchan_flow; - u32 pktdma_rchan_flow; -}; - -struct udma_match_data { - enum k3_dma_type type; - u32 psil_base; - bool enable_memcpy_support; - u32 flags; - u32 statictr_z_mask; - u8 burst_size[3]; - struct udma_soc_data *soc_data; -}; - -struct udma_soc_data { - struct udma_oes_offsets oes; - u32 bcdma_trigger_event_offset; -}; - -struct udma_hwdesc { - size_t cppi5_desc_size; - void *cppi5_desc_vaddr; - dma_addr_t cppi5_desc_paddr; - - /* TR descriptor internal pointers */ - void *tr_req_base; - struct cppi5_tr_resp_t *tr_resp_base; -}; - -struct udma_rx_flush { - struct udma_hwdesc hwdescs[2]; - - size_t buffer_size; - void *buffer_vaddr; - dma_addr_t buffer_paddr; -}; - -struct udma_tpl { - u8 levels; - u32 start_idx[3]; -}; - -struct udma_dev { - struct dma_device ddev; - struct device *dev; - void __iomem *mmrs[MMR_LAST]; - const struct udma_match_data *match_data; - const struct udma_soc_data *soc_data; - - struct udma_tpl bchan_tpl; - struct udma_tpl tchan_tpl; - struct udma_tpl rchan_tpl; - - size_t desc_align; /* alignment to use for descriptors */ - - struct udma_tisci_rm tisci_rm; - - struct k3_ringacc *ringacc; - - struct work_struct purge_work; - struct list_head desc_to_purge; - spinlock_t lock; - - struct udma_rx_flush rx_flush; - - int bchan_cnt; - int tchan_cnt; - int echan_cnt; - int rchan_cnt; - int rflow_cnt; - int tflow_cnt; - unsigned long *bchan_map; - unsigned long *tchan_map; - unsigned long *rchan_map; - unsigned long *rflow_gp_map; - unsigned long *rflow_gp_map_allocated; - unsigned long *rflow_in_use; - unsigned long *tflow_map; - - struct udma_bchan *bchans; - struct udma_tchan *tchans; - struct udma_rchan *rchans; - struct udma_rflow *rflows; - - struct udma_chan *channels; - u32 psil_base; - u32 atype; - u32 asel; -}; - -struct udma_desc { - struct virt_dma_desc vd; - - bool terminated; - - enum dma_transfer_direction dir; - - struct udma_static_tr static_tr; - u32 residue; - - unsigned int sglen; - unsigned int desc_idx; /* Only used for cyclic in packet mode */ - unsigned int tr_idx; - - u32 metadata_size; - void *metadata; /* pointer to provided metadata buffer (EPIP, PSdata) */ - - unsigned int hwdesc_count; - struct udma_hwdesc hwdesc[]; -}; - -enum udma_chan_state { - UDMA_CHAN_IS_IDLE = 0, /* not active, no teardown is in progress */ - UDMA_CHAN_IS_ACTIVE, /* Normal operation */ - UDMA_CHAN_IS_TERMINATING, /* channel is being terminated */ -}; - -struct udma_tx_drain { - struct delayed_work work; - ktime_t tstamp; - u32 residue; -}; - -struct udma_chan_config { - bool pkt_mode; /* TR or packet */ - bool needs_epib; /* EPIB is needed for the communication or not */ - u32 psd_size; /* size of Protocol Specific Data */ - u32 metadata_size; /* (needs_epib ? 16:0) + psd_size */ - u32 hdesc_size; /* Size of a packet descriptor in packet mode */ - bool notdpkt; /* Suppress sending TDC packet */ - int remote_thread_id; - u32 atype; - u32 asel; - u32 src_thread; - u32 dst_thread; - enum psil_endpoint_type ep_type; - bool enable_acc32; - bool enable_burst; - enum udma_tp_level channel_tpl; /* Channel Throughput Level */ - - u32 tr_trigger_type; - unsigned long tx_flags; - - /* PKDMA mapped channel */ - int mapped_channel_id; - /* PKTDMA default tflow or rflow for mapped channel */ - int default_flow_id; - - enum dma_transfer_direction dir; -}; - -struct udma_chan { - struct virt_dma_chan vc; - struct dma_slave_config cfg; - struct udma_dev *ud; - struct device *dma_dev; - struct udma_desc *desc; - struct udma_desc *terminated_desc; - struct udma_static_tr static_tr; - char *name; - - struct udma_bchan *bchan; - struct udma_tchan *tchan; - struct udma_rchan *rchan; - struct udma_rflow *rflow; - - bool psil_paired; - - int irq_num_ring; - int irq_num_udma; - - bool cyclic; - bool paused; - - enum udma_chan_state state; - struct completion teardown_completed; - - struct udma_tx_drain tx_drain; - - /* Channel configuration parameters */ - struct udma_chan_config config; - /* Channel configuration parameters (backup) */ - struct udma_chan_config backup_config; - - /* dmapool for packet mode descriptors */ - bool use_dma_pool; - struct dma_pool *hdesc_pool; - - u32 id; -}; - static inline struct udma_dev *to_udma_dev(struct dma_device *d) { return container_of(d, struct udma_dev, ddev); @@ -4073,13 +3823,6 @@ static struct platform_driver udma_driver; static struct platform_driver bcdma_driver; static struct platform_driver pktdma_driver; -struct udma_filter_param { - int remote_thread_id; - u32 atype; - u32 asel; - u32 tr_trigger_type; -}; - static bool udma_dma_filter_fn(struct dma_chan *chan, void *param) { struct udma_chan_config *ucc; diff --git a/drivers/dma/ti/k3-udma.h b/drivers/dma/ti/k3-udma.h index 750720cd06911..11d08adb0d69f 100644 --- a/drivers/dma/ti/k3-udma.h +++ b/drivers/dma/ti/k3-udma.h @@ -6,7 +6,16 @@ #ifndef K3_UDMA_H_ #define K3_UDMA_H_ +#include #include +#include +#include +#include +#include +#include + +#include "../virt-dma.h" +#include "k3-psil-priv.h" /* Global registers */ #define UDMA_REV_REG 0x0 @@ -164,6 +173,7 @@ struct udma_dev; struct udma_tchan; struct udma_rchan; struct udma_rflow; +struct udma_chan; enum udma_rm_range { RM_RANGE_BCHAN = 0, @@ -186,6 +196,261 @@ struct udma_tisci_rm { struct ti_sci_resource *rm_ranges[RM_RANGE_LAST]; }; +struct udma_static_tr { + u8 elsize; /* RPSTR0 */ + u16 elcnt; /* RPSTR0 */ + u16 bstcnt; /* RPSTR1 */ +}; + +enum k3_dma_type { + DMA_TYPE_UDMA = 0, + DMA_TYPE_BCDMA, + DMA_TYPE_PKTDMA, +}; + +enum udma_mmr { + MMR_GCFG = 0, + MMR_BCHANRT, + MMR_RCHANRT, + MMR_TCHANRT, + MMR_LAST, +}; + +struct udma_filter_param { + int remote_thread_id; + u32 atype; + u32 asel; + u32 tr_trigger_type; +}; + +struct udma_tchan { + void __iomem *reg_rt; + + int id; + struct k3_ring *t_ring; /* Transmit ring */ + struct k3_ring *tc_ring; /* Transmit Completion ring */ + int tflow_id; /* applicable only for PKTDMA */ + +}; + +#define udma_bchan udma_tchan + +struct udma_rflow { + int id; + struct k3_ring *fd_ring; /* Free Descriptor ring */ + struct k3_ring *r_ring; /* Receive ring */ +}; + +struct udma_rchan { + void __iomem *reg_rt; + + int id; +}; + +struct udma_oes_offsets { + /* K3 UDMA Output Event Offset */ + u32 udma_rchan; + + /* BCDMA Output Event Offsets */ + u32 bcdma_bchan_data; + u32 bcdma_bchan_ring; + u32 bcdma_tchan_data; + u32 bcdma_tchan_ring; + u32 bcdma_rchan_data; + u32 bcdma_rchan_ring; + + /* PKTDMA Output Event Offsets */ + u32 pktdma_tchan_flow; + u32 pktdma_rchan_flow; +}; + +struct udma_match_data { + enum k3_dma_type type; + u32 psil_base; + bool enable_memcpy_support; + u32 flags; + u32 statictr_z_mask; + u8 burst_size[3]; + struct udma_soc_data *soc_data; +}; + +struct udma_soc_data { + struct udma_oes_offsets oes; + u32 bcdma_trigger_event_offset; +}; + +struct udma_hwdesc { + size_t cppi5_desc_size; + void *cppi5_desc_vaddr; + dma_addr_t cppi5_desc_paddr; + + /* TR descriptor internal pointers */ + void *tr_req_base; + struct cppi5_tr_resp_t *tr_resp_base; +}; + +struct udma_rx_flush { + struct udma_hwdesc hwdescs[2]; + + size_t buffer_size; + void *buffer_vaddr; + dma_addr_t buffer_paddr; +}; + +struct udma_tpl { + u8 levels; + u32 start_idx[3]; +}; + +struct udma_dev { + struct dma_device ddev; + struct device *dev; + void __iomem *mmrs[MMR_LAST]; + const struct udma_match_data *match_data; + const struct udma_soc_data *soc_data; + + struct udma_tpl bchan_tpl; + struct udma_tpl tchan_tpl; + struct udma_tpl rchan_tpl; + + size_t desc_align; /* alignment to use for descriptors */ + + struct udma_tisci_rm tisci_rm; + + struct k3_ringacc *ringacc; + + struct work_struct purge_work; + struct list_head desc_to_purge; + spinlock_t lock; + + struct udma_rx_flush rx_flush; + + int bchan_cnt; + int tchan_cnt; + int echan_cnt; + int rchan_cnt; + int rflow_cnt; + int tflow_cnt; + unsigned long *bchan_map; + unsigned long *tchan_map; + unsigned long *rchan_map; + unsigned long *rflow_gp_map; + unsigned long *rflow_gp_map_allocated; + unsigned long *rflow_in_use; + unsigned long *tflow_map; + + struct udma_bchan *bchans; + struct udma_tchan *tchans; + struct udma_rchan *rchans; + struct udma_rflow *rflows; + + struct udma_chan *channels; + u32 psil_base; + u32 atype; + u32 asel; +}; + +struct udma_desc { + struct virt_dma_desc vd; + + bool terminated; + + enum dma_transfer_direction dir; + + struct udma_static_tr static_tr; + u32 residue; + + unsigned int sglen; + unsigned int desc_idx; /* Only used for cyclic in packet mode */ + unsigned int tr_idx; + + u32 metadata_size; + void *metadata; /* pointer to provided metadata buffer (EPIP, PSdata) */ + + unsigned int hwdesc_count; + struct udma_hwdesc hwdesc[]; +}; + +enum udma_chan_state { + UDMA_CHAN_IS_IDLE = 0, /* not active, no teardown is in progress */ + UDMA_CHAN_IS_ACTIVE, /* Normal operation */ + UDMA_CHAN_IS_TERMINATING, /* channel is being terminated */ +}; + +struct udma_tx_drain { + struct delayed_work work; + ktime_t tstamp; + u32 residue; +}; + +struct udma_chan_config { + bool pkt_mode; /* TR or packet */ + bool needs_epib; /* EPIB is needed for the communication or not */ + u32 psd_size; /* size of Protocol Specific Data */ + u32 metadata_size; /* (needs_epib ? 16:0) + psd_size */ + u32 hdesc_size; /* Size of a packet descriptor in packet mode */ + bool notdpkt; /* Suppress sending TDC packet */ + int remote_thread_id; + u32 atype; + u32 asel; + u32 src_thread; + u32 dst_thread; + enum psil_endpoint_type ep_type; + bool enable_acc32; + bool enable_burst; + enum udma_tp_level channel_tpl; /* Channel Throughput Level */ + + u32 tr_trigger_type; + unsigned long tx_flags; + + /* PKDMA mapped channel */ + int mapped_channel_id; + /* PKTDMA default tflow or rflow for mapped channel */ + int default_flow_id; + + enum dma_transfer_direction dir; +}; + +struct udma_chan { + struct virt_dma_chan vc; + struct dma_slave_config cfg; + struct udma_dev *ud; + struct device *dma_dev; + struct udma_desc *desc; + struct udma_desc *terminated_desc; + struct udma_static_tr static_tr; + char *name; + + struct udma_bchan *bchan; + struct udma_tchan *tchan; + struct udma_rchan *rchan; + struct udma_rflow *rflow; + + bool psil_paired; + + int irq_num_ring; + int irq_num_udma; + + bool cyclic; + bool paused; + + enum udma_chan_state state; + struct completion teardown_completed; + + struct udma_tx_drain tx_drain; + + /* Channel configuration parameters */ + struct udma_chan_config config; + /* Channel configuration parameters (backup) */ + struct udma_chan_config backup_config; + + /* dmapool for packet mode descriptors */ + bool use_dma_pool; + struct dma_pool *hdesc_pool; + + u32 id; +}; + /* Direct access to UDMA low lever resources for the glue layer */ int xudma_navss_psil_pair(struct udma_dev *ud, u32 src_thread, u32 dst_thread); int xudma_navss_psil_unpair(struct udma_dev *ud, u32 src_thread, -- 2.54.0