From: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
To: bhelgaas@google.com, lorenzo.pieralisi@arm.com,
Joao.Pinto@synopsys.com, jingoohan1@gmail.com, kishon@ti.com,
adouglas@cadence.com, jesper.nilsson@axis.com
Cc: linux-pci@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, gustavo.pimentel@synopsys.com
Subject: [PATCH 05/10] PCI: dwc: Add legacy interrupt callback handler
Date: Fri, 27 Apr 2018 17:57:42 +0100 [thread overview]
Message-ID: <8d1204f6e1e0d4ceaa4df30415c025feaa72e6ee.1524845816.git.gustavo.pimentel@synopsys.com> (raw)
In-Reply-To: <cover.1524845816.git.gustavo.pimentel@synopsys.com>
In-Reply-To: <cover.1524845816.git.gustavo.pimentel@synopsys.com>
Add a legacy interrupt callback handler. Currently DesignWare IP don't
allow triggering the legacy interrupt.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
---
drivers/pci/dwc/pcie-designware-ep.c | 10 ++++++++++
drivers/pci/dwc/pcie-designware-plat.c | 3 +--
drivers/pci/dwc/pcie-designware.h | 6 ++++++
3 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/dwc/pcie-designware-ep.c b/drivers/pci/dwc/pcie-designware-ep.c
index 1ba3a7f..b599169 100644
--- a/drivers/pci/dwc/pcie-designware-ep.c
+++ b/drivers/pci/dwc/pcie-designware-ep.c
@@ -370,6 +370,16 @@ static const struct pci_epc_ops epc_ops = {
.stop = dw_pcie_ep_stop,
};
+int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no)
+{
+ struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
+ struct device *dev = pci->dev;
+
+ dev_err(dev, "EP cannot trigger legacy IRQs\n");
+
+ return -EINVAL;
+}
+
int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
u8 interrupt_num)
{
diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c
index 654dcb5..90a8c95 100644
--- a/drivers/pci/dwc/pcie-designware-plat.c
+++ b/drivers/pci/dwc/pcie-designware-plat.c
@@ -84,8 +84,7 @@ static int dw_plat_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
switch (type) {
case PCI_EPC_IRQ_LEGACY:
- dev_err(pci->dev, "EP cannot trigger legacy IRQs\n");
- return -EINVAL;
+ return dw_pcie_ep_raise_legacy_irq(ep, func_no);
case PCI_EPC_IRQ_MSI:
return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
case PCI_EPC_IRQ_MSIX:
diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/dwc/pcie-designware.h
index a0ab12f..69e6e17 100644
--- a/drivers/pci/dwc/pcie-designware.h
+++ b/drivers/pci/dwc/pcie-designware.h
@@ -350,6 +350,7 @@ static inline int dw_pcie_allocate_domains(struct pcie_port *pp)
void dw_pcie_ep_linkup(struct dw_pcie_ep *ep);
int dw_pcie_ep_init(struct dw_pcie_ep *ep);
void dw_pcie_ep_exit(struct dw_pcie_ep *ep);
+int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no);
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,
@@ -369,6 +370,11 @@ static inline void dw_pcie_ep_exit(struct dw_pcie_ep *ep)
{
}
+static inline int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no)
+{
+ return 0;
+}
+
static inline int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
u8 interrupt_num)
{
--
2.7.4
next prev parent reply other threads:[~2018-04-27 17:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-27 16:57 [PATCH 00/10] Add MSI-X support on pcitest tool Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 01/10] PCI: endpoint: Add MSI-X interfaces Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 02/10] PCI: dwc: Add MSI-X callbacks handler Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 03/10] PCI: cadence: Update cdns_pcie_ep_raise_irq function signature Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 04/10] PCI: dwc: Rework MSI callbacks handler Gustavo Pimentel
2018-04-27 16:57 ` Gustavo Pimentel [this message]
2018-04-27 16:57 ` [PATCH 06/10] misc: pci_endpoint_test: Add MSI-X support Gustavo Pimentel
2018-04-30 15:35 ` Alan Douglas
2018-04-30 16:30 ` Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 07/10] misc: pci_endpoint_test: Replace lower into upper case characters Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 08/10] PCI: endpoint: functions/pci-epf-test: " Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 09/10] tools: PCI: Add MSI-X support Gustavo Pimentel
2018-04-27 16:57 ` [PATCH 10/10] misc: pci_endpoint_test: Use pci_irq_vector function Gustavo Pimentel
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