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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-04-22 13:35:18 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-04-22 13:35:18 -0300 |
| commit | 173b0b5b0e865348684c02bd9cb1d22b5d46e458 (patch) | |
| tree | a42a2cc8b724b94a9478aedfcbfabcec0197b246 /drivers/cdx/controller/mcdi_functions.h | |
| parent | Revert "tools headers: Remove almost unused copy of uapi/stat.h, add few cond... (diff) | |
| parent | Linux 6.9-rc5 (diff) | |
| download | linux-173b0b5b0e865348684c02bd9cb1d22b5d46e458.tar.gz linux-173b0b5b0e865348684c02bd9cb1d22b5d46e458.zip | |
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
To pick up fixes sent via perf-tools, by Namhyung Kim.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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 258a5462fbe3..b9942affdc6b 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 */ |