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From: "Marek Behún" <kabel@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: pali@kernel.org, linux-pci@vger.kernel.org,
	"Marek Behún" <kabel@kernel.org>
Subject: [PATCH v4 03/11] PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge
Date: Tue, 30 Nov 2021 18:29:05 +0100	[thread overview]
Message-ID: <20211130172913.9727-4-kabel@kernel.org> (raw)
In-Reply-To: <20211130172913.9727-1-kabel@kernel.org>

From: Pali Rohár <pali@kernel.org>

PCI aardvark hardware supports access to DEVCAP2, DEVCTL2, LNKCAP2 and
LNKCTL2 configuration registers of PCIe core via PCIE_CORE_PCIEXP_CAP.
Export them via emulated software root bridge.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index c5300d49807a..25af189a1052 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -884,8 +884,13 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 	case PCI_CAP_LIST_ID:
 	case PCI_EXP_DEVCAP:
 	case PCI_EXP_DEVCTL:
+	case PCI_EXP_DEVCAP2:
+	case PCI_EXP_DEVCTL2:
+	case PCI_EXP_LNKCAP2:
+	case PCI_EXP_LNKCTL2:
 		*value = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg);
 		return PCI_BRIDGE_EMUL_HANDLED;
+
 	default:
 		return PCI_BRIDGE_EMUL_NOT_HANDLED;
 	}
@@ -899,10 +904,6 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
 	struct advk_pcie *pcie = bridge->data;
 
 	switch (reg) {
-	case PCI_EXP_DEVCTL:
-		advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg);
-		break;
-
 	case PCI_EXP_LNKCTL:
 		advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg);
 		if (new & PCI_EXP_LNKCTL_RL)
@@ -924,6 +925,12 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
 		advk_writel(pcie, new, PCIE_ISR0_REG);
 		break;
 
+	case PCI_EXP_DEVCTL:
+	case PCI_EXP_DEVCTL2:
+	case PCI_EXP_LNKCTL2:
+		advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg);
+		break;
+
 	default:
 		break;
 	}
-- 
2.32.0


  parent reply	other threads:[~2021-11-30 17:29 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-30 17:29 [PATCH v4 00/11] PCI: aardvark controller fixes BATCH 3 Marek Behún
2021-11-30 17:29 ` [PATCH v4 01/11] PCI: pci-bridge-emul: Add description for class_revision field Marek Behún
2021-12-03 16:36   ` Bjorn Helgaas
2021-12-03 18:52     ` Marek Behún
2021-11-30 17:29 ` [PATCH v4 02/11] PCI: pci-bridge-emul: Add definitions for missing capabilities registers Marek Behún
2021-12-03 16:45   ` Bjorn Helgaas
2021-11-30 17:29 ` Marek Behún [this message]
2021-11-30 17:29 ` [PATCH v4 04/11] PCI: aardvark: Clear all MSIs at setup Marek Behún
2021-11-30 17:29 ` [PATCH v4 05/11] PCI: aardvark: Comment actions in driver remove method Marek Behún
2021-11-30 17:29 ` [PATCH v4 06/11] PCI: aardvark: Disable bus mastering when unbinding driver Marek Behún
2021-11-30 17:29 ` [PATCH v4 07/11] PCI: aardvark: Mask all interrupts " Marek Behún
2021-11-30 17:29 ` [PATCH v4 08/11] PCI: aardvark: Fix memory leak in driver unbind Marek Behún
2021-11-30 17:29 ` [PATCH v4 09/11] PCI: aardvark: Assert PERST# when unbinding driver Marek Behún
2021-11-30 17:29 ` [PATCH v4 10/11] PCI: aardvark: Disable link training " Marek Behún
2021-11-30 17:29 ` [PATCH v4 11/11] PCI: aardvark: Disable common PHY " Marek Behún
2021-12-02 10:01 ` [PATCH v4 00/11] PCI: aardvark controller fixes BATCH 3 Lorenzo Pieralisi

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