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Merge branch 'pci/controller/cadence'

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- Correct MSG TLP generation so endpoint can generate INTx messages (Hans
  Zhang)

* pci/controller/cadence:
  PCI: cadence-ep: Fix the driver to send MSG TLP for INTx without data payload
This commit is contained in:
Bjorn Helgaas 2025-03-27 13:14:48 -05:00
commit 479e4a014b
2 changed files with 2 additions and 3 deletions
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3
drivers/pci/controller/cadence/pcie-cadence-ep.c
View File

@ -352,8 +352,7 @@ static void cdns_pcie_ep_assert_intx(struct cdns_pcie_ep *ep, u8 fn, u8 intx,
spin_unlock_irqrestore(&ep->lock, flags);
offset = CDNS_PCIE_NORMAL_MSG_ROUTING(MSG_ROUTING_LOCAL) |
CDNS_PCIE_NORMAL_MSG_CODE(msg_code) |
CDNS_PCIE_MSG_NO_DATA;
CDNS_PCIE_NORMAL_MSG_CODE(msg_code);
writel(0, ep->irq_cpu_addr + offset);
}

2
drivers/pci/controller/cadence/pcie-cadence.h
View File

@ -246,7 +246,7 @@ struct cdns_pcie_rp_ib_bar {
#define CDNS_PCIE_NORMAL_MSG_CODE_MASK GENMASK(15, 8)
#define CDNS_PCIE_NORMAL_MSG_CODE(code) \
(((code) << 8) & CDNS_PCIE_NORMAL_MSG_CODE_MASK)
#define CDNS_PCIE_MSG_NO_DATA BIT(16)
#define CDNS_PCIE_MSG_DATA BIT(16)
struct cdns_pcie;