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| author | Vignesh Raghavendra <vigneshr@ti.com> | 2021-05-10 20:06:03 +0530 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2021-05-12 16:36:38 +0530 |
| commit | c409b4932dba6403a706f9453d627abfb5d93e20 (patch) | |
| tree | e1ceef89ae0fbaf3d52a18fc56d47536c72dbc2a /include/linux | |
| parent | 91f1e792fe085cd14919803b55983b8c760effb0 (diff) | |
| download | u-boot-c409b4932dba6403a706f9453d627abfb5d93e20.tar.gz | |
soc: ti: k3-navss-ringacc: Add AM64 ringacc support
AM64 dual mode rings are modeled as pair of Rings objects which has common
configuration and memory buffer, but separate real-time control register
sets for each direction mem2dev (forward) and dev2mem (reverse).
AM64 rings must be requested only using k3_ringacc_request_rings_pair(),
and forward ring must always be initialized/configured. After this any
other Ringacc APIs can be used without any callers changes.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/soc/ti/k3-navss-ringacc.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/soc/ti/k3-navss-ringacc.h b/include/linux/soc/ti/k3-navss-ringacc.h index 9176277ff0..1e9b7d9125 100644 --- a/include/linux/soc/ti/k3-navss-ringacc.h +++ b/include/linux/soc/ti/k3-navss-ringacc.h @@ -238,4 +238,19 @@ int k3_nav_ringacc_ring_push_head(struct k3_nav_ring *ring, void *elem); */ int k3_nav_ringacc_ring_pop_tail(struct k3_nav_ring *ring, void *elem); +/* DMA ring support */ +struct ti_sci_handle; + +/** + * struct struct k3_ringacc_init_data - Initialization data for DMA rings + */ +struct k3_ringacc_init_data { + const struct ti_sci_handle *tisci; + u32 tisci_dev_id; + u32 num_rings; +}; + +struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, + struct k3_ringacc_init_data *data); + #endif /* __SOC_TI_K3_NAVSS_RINGACC_API_H_ */ |