From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- include/soc/mediatek/smi.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 include/soc/mediatek/smi.h (limited to 'include/soc/mediatek') diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h new file mode 100644 index 000000000..000eb1cf6 --- /dev/null +++ b/include/soc/mediatek/smi.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2015-2016 MediaTek Inc. + * Author: Yong Wu + */ +#ifndef MTK_IOMMU_SMI_H +#define MTK_IOMMU_SMI_H + +#include +#include + +#if IS_ENABLED(CONFIG_MTK_SMI) + +enum iommu_atf_cmd { + IOMMU_ATF_CMD_CONFIG_SMI_LARB, /* For mm master to en/disable iommu */ + IOMMU_ATF_CMD_CONFIG_INFRA_IOMMU, /* For infra master to enable iommu */ + IOMMU_ATF_CMD_MAX, +}; + +#define MTK_SMI_MMU_EN(port) BIT(port) + +struct mtk_smi_larb_iommu { + struct device *dev; + unsigned int mmu; + unsigned char bank[32]; +}; + +#endif + +#endif -- cgit v1.3.1