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PCI: endpoint: pci-epf-test: Expose supported IRQ types in CAPS register

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Expose the supported IRQ types in the CAPS register.

This way, the host side driver (drivers/misc/pci_endpoint_test.c) can
know which IRQ types that the endpoint supports.

The host side driver will make use of this information in a follow-up
commit.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://lore.kernel.org/r/20250310111016.859445-15-cassel@kernel.org
This commit is contained in:
Niklas Cassel 2025-03-10 12:10:23 +01:00 committed by Krzysztof Wilczyński
parent e55c67837a
commit 7c3b54cf64
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GPG Key ID: 7C64768D3DE334E7
1 changed files with 12 additions and 0 deletions
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12
drivers/pci/endpoint/functions/pci-epf-test.c
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@ -45,6 +45,9 @@
#define TIMER_RESOLUTION 1
#define CAP_UNALIGNED_ACCESS BIT(0)
#define CAP_MSI BIT(1)
#define CAP_MSIX BIT(2)
#define CAP_INTX BIT(3)
static struct workqueue_struct *kpcitest_workqueue;
@ -753,6 +756,15 @@ static void pci_epf_test_set_capabilities(struct pci_epf *epf)
if (epc->ops->align_addr)
caps |= CAP_UNALIGNED_ACCESS;
if (epf_test->epc_features->msi_capable)
caps |= CAP_MSI;
if (epf_test->epc_features->msix_capable)
caps |= CAP_MSIX;
if (epf_test->epc_features->intx_capable)
caps |= CAP_INTX;
reg->caps = cpu_to_le32(caps);
}