[PATCH v6 03/19] dmaengine: ti: k3-udma: move structs and enums to header file

[Sai Sree Kartheek Adivi <s-adivi@ti.com>]

Move struct and enum definitions in k3-udma.c to k3-udma.h header file
for better separation and reuse.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sai Sree Kartheek Adivi <s-adivi@ti.com>
---
 drivers/dma/ti/k3-udma.c | 259 +-------------------------------------
 drivers/dma/ti/k3-udma.h | 261 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 262 insertions(+), 258 deletions(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index e4ba5ce28c214..3bbad4456dd9d 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -24,8 +24,8 @@
 #include <linux/workqueue.h>
 #include <linux/completion.h>
 #include <linux/soc/ti/k3-ringacc.h>
-#include <linux/soc/ti/ti_sci_protocol.h>
 #include <linux/soc/ti/ti_sci_inta_msi.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
 #include <linux/dma/k3-event-router.h>
 #include <linux/dma/ti-cppi5.h>
 
@@ -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..37aa9ba5b4d18 100644
--- a/drivers/dma/ti/k3-udma.h
+++ b/drivers/dma/ti/k3-udma.h
@@ -6,7 +6,12 @@
 #ifndef K3_UDMA_H_
 #define K3_UDMA_H_
 
+#include <linux/dmaengine.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
+#include <linux/dma/ti-cppi5.h>
+
+#include "../virt-dma.h"
+#include "k3-psil-priv.h"
 
 /* Global registers */
 #define UDMA_REV_REG			0x0
@@ -164,6 +169,7 @@ 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 +192,261 @@ 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,
-- 
2.53.0