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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
commit | 94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch) | |
tree | 9a4eb8cc234b540b0f4b93363109cdd37a20540b /drivers/cdx/controller/mcdi_functions.h | |
parent | Adding debian version 6.8.12-1. (diff) | |
download | linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/cdx/controller/mcdi_functions.h')
-rw-r--r-- | drivers/cdx/controller/mcdi_functions.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/cdx/controller/mcdi_functions.h b/drivers/cdx/controller/mcdi_functions.h index 258a5462fb..b9942affdc 100644 --- a/drivers/cdx/controller/mcdi_functions.h +++ b/drivers/cdx/controller/mcdi_functions.h @@ -66,6 +66,26 @@ int cdx_mcdi_bus_enable(struct cdx_mcdi *cdx, u8 bus_num); int cdx_mcdi_bus_disable(struct cdx_mcdi *cdx, u8 bus_num); /** + * cdx_mcdi_write_msi - Write MSI configuration for CDX device + * @cdx: pointer to MCDI interface. + * @bus_num: Bus number. + * @dev_num: Device number. + * @msi_vector: Device-relative MSI vector number. + * Must be < MSI_COUNT reported for the device. + * @msi_address: MSI address to be used by the hardware. Typically, on ARM + * systems this address is translated by the IOMMU (if enabled) and + * it is the responsibility of the entity managing the IOMMU (APU kernel) + * to supply the correct IOVA here. + * @msi_data: MSI data to be used by the hardware. On versal-net, only the + * lower 16-bits are used, the remaining bits are ignored and should be + * set to zero. + * + * Return: 0 on success, <0 on failure + */ +int cdx_mcdi_write_msi(struct cdx_mcdi *cdx, u8 bus_num, u8 dev_num, + u32 msi_vector, u64 msi_address, u32 msi_data); + +/** * cdx_mcdi_reset_device - Reset cdx device represented by bus_num:dev_num * @cdx: pointer to MCDI interface. * @bus_num: Bus number. @@ -89,4 +109,17 @@ int cdx_mcdi_reset_device(struct cdx_mcdi *cdx, int cdx_mcdi_bus_master_enable(struct cdx_mcdi *cdx, u8 bus_num, u8 dev_num, bool enable); +/** + * cdx_mcdi_msi_enable - Enable/Disable MSIs for cdx device represented + * by bus_num:dev_num + * @cdx: pointer to MCDI interface. + * @bus_num: Bus number. + * @dev_num: Device number. + * @enable: Enable msi's if set, disable otherwise. + * + * Return: 0 on success, <0 on failure + */ +int cdx_mcdi_msi_enable(struct cdx_mcdi *cdx, u8 bus_num, + u8 dev_num, bool enable); + #endif /* CDX_MCDI_FUNCTIONS_H */ |