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bus/fsl-mc: Add dprc-reset-container support

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DPRC reset is required by VFIO-mc in order to stop a device
to further generate DMA transactions.

Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com>
Link: https://lore.kernel.org/r/20200929085441.17448-7-diana.craciun@oss.nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bharat Bhushan
2020-09-29 11:54:34 +03:00
committed by Greg Kroah-Hartman
parent 993577b2ef
commit 715b02ce89
3 changed files with 85 additions and 0 deletions
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7
include/linux/fsl/mc.h
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@@ -524,6 +524,13 @@ static inline bool is_fsl_mc_bus_dpdmai(const struct fsl_mc_device *mc_dev)
return mc_dev->dev.type == &fsl_mc_bus_dpdmai_type;
}
#define DPRC_RESET_OPTION_NON_RECURSIVE 0x00000001
int dprc_reset_container(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
int child_container_id,
u32 options);
/*
* Data Path Buffer Pool (DPBP) API
* Contains initialization APIs and runtime control APIs for DPBP