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| author | Xiaowei Bao <xiaowei.bao@nxp.com> | 2020-09-18 16:00:14 +0800 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-09-21 11:46:04 +0100 |
| commit | 2f7f7001d0e58f3f1c010c0ccdb049602c889b1d (patch) | |
| tree | 3710e02af3682dc036cdebf003775ae2b400c4f4 /drivers/pci/controller/dwc/pcie-designware.h | |
| parent | 24ede430fa49d27ee4dd95ef6d234069fa034b9c (diff) | |
| download | linux-2f7f7001d0e58f3f1c010c0ccdb049602c889b1d.tar.bz2 | |
PCI: designware-ep: Add the doorbell mode of MSI-X in EP mode
Add the doorbell mode of MSI-X in DWC EP driver.
Link: https://lore.kernel.org/r/20200918080024.13639-3-Zhiqiang.Hou@nxp.com
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware.h')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 32102ebc5c37..4b75b798de98 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -105,6 +105,9 @@ #define PCIE_MISC_CONTROL_1_OFF 0x8BC #define PCIE_DBI_RO_WR_EN BIT(0) +#define PCIE_MSIX_DOORBELL 0x948 +#define PCIE_MSIX_DOORBELL_PF_SHIFT 24 + #define PCIE_PL_CHK_REG_CONTROL_STATUS 0xB20 #define PCIE_PL_CHK_REG_CHK_REG_START BIT(0) #define PCIE_PL_CHK_REG_CHK_REG_CONTINUOUS BIT(1) @@ -414,6 +417,8 @@ int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no, u8 interrupt_num); int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no, u16 interrupt_num); +int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep, u8 func_no, + u16 interrupt_num); void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar); #else static inline void dw_pcie_ep_linkup(struct dw_pcie_ep *ep) @@ -455,6 +460,13 @@ static inline int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no, return 0; } +static inline int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep, + u8 func_no, + u16 interrupt_num) +{ + return 0; +} + static inline void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar) { } |