From: Minda Chen <minda.chen@starfivetech.com>
To: "Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Conor Dooley" <conor@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Daire McNamara" <daire.mcnamara@microchip.com>,
"Emil Renner Berthing" <emil.renner.berthing@canonical.com>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-pci@vger.kernel.org,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Philipp Zabel <p.zabel@pengutronix.de>,
Mason Huo <mason.huo@starfivetech.com>,
Leyfoon Tan <leyfoon.tan@starfivetech.com>,
Kevin Xie <kevin.xie@starfivetech.com>,
Minda Chen <minda.chen@starfivetech.com>
Subject: [PATCH v16 12/22] PCI: microchip: Add request_event_irq() callback function
Date: Thu, 28 Mar 2024 17:18:25 +0800 [thread overview]
Message-ID: <20240328091835.14797-13-minda.chen@starfivetech.com> (raw)
In-Reply-To: <20240328091835.14797-1-minda.chen@starfivetech.com>
As PLDA dts binding doc(Documentation/devicetree/bindings/pci/
plda,xpressrich3-axi-common.yaml) showed, PLDA PCIe contains an interrupt
controller. Microchip Polarfire PCIe add some PCIe interrupts base on
PLDA interrupt controller.
Microchip Polarfire PCIe additional intrerrupts:
(defined in drivers/pci/controller/plda/pcie-microchip-host.c)
EVENT_PCIE_L2_EXIT
EVENT_PCIE_HOTRST_EXIT
EVENT_PCIE_DLUP_EXIT
EVENT_SEC_TX_RAM_SEC_ERR
EVENT_SEC_RX_RAM_SEC_ERR
....
Both code of request interrupts and mc_event_handler() contain
additional interrupts symbol names, these can not be re-used. So add a
new plda_event_handler() functions, which implements PLDA interrupt
defalt handler, add request_event_irq() callback function to compat
Microchip Polorfire PCIe additional interrupts.
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
.../pci/controller/plda/pcie-microchip-host.c | 31 ++++++++++++++++---
drivers/pci/controller/plda/pcie-plda.h | 5 +++
2 files changed, 32 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
index 0a5cd8b214cd..bf5ce33ee275 100644
--- a/drivers/pci/controller/plda/pcie-microchip-host.c
+++ b/drivers/pci/controller/plda/pcie-microchip-host.c
@@ -642,6 +642,11 @@ static irqreturn_t mc_event_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
+static irqreturn_t plda_event_handler(int irq, void *dev_id)
+{
+ return IRQ_HANDLED;
+}
+
static void plda_handle_event(struct irq_desc *desc)
{
struct plda_pcie_rp *port = irq_desc_get_handler_data(desc);
@@ -803,6 +808,17 @@ static int mc_pcie_init_clks(struct device *dev)
return 0;
}
+static int mc_request_event_irq(struct plda_pcie_rp *plda, int event_irq,
+ int event)
+{
+ return devm_request_irq(plda->dev, event_irq, mc_event_handler,
+ 0, event_cause[event].sym, plda);
+}
+
+static const struct plda_event mc_event = {
+ .request_event_irq = mc_request_event_irq,
+};
+
static int plda_pcie_init_irq_domains(struct plda_pcie_rp *port)
{
struct device *dev = port->dev;
@@ -904,7 +920,9 @@ static void mc_disable_interrupts(struct mc_pcie *port)
writel_relaxed(GENMASK(31, 0), bridge_base_addr + ISTATUS_HOST);
}
-static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_rp *port)
+static int plda_init_interrupts(struct platform_device *pdev,
+ struct plda_pcie_rp *port,
+ const struct plda_event *event)
{
struct device *dev = &pdev->dev;
int irq;
@@ -928,8 +946,13 @@ static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_r
return -ENXIO;
}
- ret = devm_request_irq(dev, event_irq, mc_event_handler,
- 0, event_cause[i].sym, port);
+ if (event->request_event_irq)
+ ret = event->request_event_irq(port, event_irq, i);
+ else
+ ret = devm_request_irq(dev, event_irq,
+ plda_event_handler,
+ 0, NULL, port);
+
if (ret) {
dev_err(dev, "failed to request IRQ %d\n", event_irq);
return ret;
@@ -983,7 +1006,7 @@ static int mc_platform_init(struct pci_config_window *cfg)
return ret;
/* Address translation is up; safe to enable interrupts */
- ret = plda_init_interrupts(pdev, &port->plda);
+ ret = plda_init_interrupts(pdev, &port->plda, &mc_event);
if (ret)
return ret;
diff --git a/drivers/pci/controller/plda/pcie-plda.h b/drivers/pci/controller/plda/pcie-plda.h
index f7e900b395f8..935686bba837 100644
--- a/drivers/pci/controller/plda/pcie-plda.h
+++ b/drivers/pci/controller/plda/pcie-plda.h
@@ -127,6 +127,11 @@ struct plda_pcie_rp {
int num_events;
};
+struct plda_event {
+ int (*request_event_irq)(struct plda_pcie_rp *pcie,
+ int event_irq, int event);
+};
+
void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,
phys_addr_t axi_addr, phys_addr_t pci_addr,
size_t size);
--
2.17.1
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next prev parent reply other threads:[~2024-03-28 9:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-28 9:18 [PATCH v16 00/22] Refactoring Microchip PCIe driver and add StarFive PCIe Minda Chen
2024-03-28 9:18 ` [PATCH v16 01/22] dt-bindings: PCI: Add PLDA XpressRICH PCIe host common properties Minda Chen
2024-03-28 9:18 ` [PATCH v16 02/22] PCI: microchip: Move pcie-microchip-host.c to plda directory Minda Chen
2024-03-28 9:18 ` [PATCH v16 03/22] PCI: microchip: Move PLDA IP register macros to pcie-plda.h Minda Chen
2024-03-28 9:18 ` [PATCH v16 04/22] PCI: microchip: Add bridge_addr field to struct mc_pcie Minda Chen
2024-03-28 9:18 ` [PATCH v16 05/22] PCI: microchip: Rename two PCIe data structures Minda Chen
2024-03-28 9:18 ` [PATCH v16 06/22] PCI: microchip: Move PCIe host data structures to plda-pcie.h Minda Chen
2024-03-28 9:18 ` [PATCH v16 07/22] PCI: microchip: Rename two setup functions Minda Chen
2024-03-28 9:18 ` [PATCH v16 08/22] PCI: microchip: Change the argument of plda_pcie_setup_iomems() Minda Chen
2024-05-21 22:21 ` Bjorn Helgaas
2024-05-22 1:50 ` 回复: " Minda Chen
2024-05-22 22:10 ` Bjorn Helgaas
2024-05-23 1:09 ` Minda Chen
2024-05-23 2:35 ` Bjorn Helgaas
2024-05-23 9:22 ` Minda Chen
2024-05-23 9:36 ` Conor Dooley
2024-03-28 9:18 ` [PATCH v16 09/22] PCI: microchip: Move setup functions to pcie-plda-host.c Minda Chen
2024-03-28 9:18 ` [PATCH v16 10/22] PCI: microchip: Rename interrupt related functions Minda Chen
2024-03-28 9:18 ` [PATCH v16 11/22] PCI: microchip: Add num_events field to struct plda_pcie_rp Minda Chen
2024-03-28 9:18 ` Minda Chen [this message]
2024-03-28 9:18 ` [PATCH v16 13/22] PCI: microchip: Add INTx and MSI event num to struct plda_event Minda Chen
2024-03-28 9:18 ` [PATCH v16 14/22] PCI: microchip: Add get_events() callback and add PLDA get_event() Minda Chen
2024-03-28 9:18 ` [PATCH v16 15/22] PCI: microchip: Add event irqchip field to host port and add PLDA irqchip Minda Chen
2024-04-30 0:50 ` Minda Chen
2024-04-30 1:10 ` Minda Chen
2024-03-28 9:18 ` [PATCH v16 16/22] PCI: microchip: Move IRQ functions to pcie-plda-host.c Minda Chen
2024-03-28 9:18 ` [PATCH v16 17/22] PCI: plda: Add event bitmap field to struct plda_pcie_rp Minda Chen
2024-03-28 9:18 ` [PATCH v16 18/22] PCI: plda: Add host init/deinit and map bus functions Minda Chen
2024-03-28 9:18 ` [PATCH v16 19/22] dt-bindings: PCI: Add StarFive JH7110 PCIe controller Minda Chen
2024-05-21 20:43 ` Bjorn Helgaas
2024-05-22 1:19 ` Kevin Xie
2024-03-28 9:18 ` [PATCH v16 20/22] PCI: Add PCIE_RESET_CONFIG_DEVICE_WAIT_MS waiting time value Minda Chen
2024-03-28 9:18 ` [PATCH v16 21/22] PCI: starfive: Add JH7110 PCIe controller Minda Chen
2024-03-28 9:18 ` [PATCH v16 22/22] riscv: dts: starfive: add PCIe dts configuration for JH7110 Minda Chen
2024-04-30 0:53 ` 回复: [PATCH v16 00/22] Refactoring Microchip PCIe driver and add StarFive PCIe Minda Chen
2024-05-17 11:16 ` Krzysztof Wilczyński
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