[openwrt/openwrt] mediatek: mt7623: import patch to fix msi warning
LEDE Commits
lede-commits at lists.infradead.org
Thu Jul 29 07:15:57 PDT 2021
dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/e8e2b88f5feb852904598cbe8746cc5b3c0022ab
commit e8e2b88f5feb852904598cbe8746cc5b3c0022ab
Author: Nick Hainke <vincent at systemli.org>
AuthorDate: Wed Jul 28 23:18:01 2021 +0200
mediatek: mt7623: import patch to fix msi warning
The 1st generation MediaTek PCIe host bridge cannot handle Message
Signaled Interrupts (MSIs). The core PCI code is not aware that MSI is
not available. This results in warnings of the form:
WARNING: CPU: 2 PID: 112 at include/linux/msi.h:219
pci_msi_setup_msi_irqs.constprop.8+0x64/0x6c
Modules linked in: ahci(+) libahci libata sd_mod scsi_mod
gpio_button_hotplug
CPU: 2 PID: 112 Comm: kmodloader Not tainted 5.10.52 #0
Hardware name: Mediatek Cortex-A7 (Device Tree)
Import patches that introduce the 'no_msi' attribute to signal missing
MSI support to the core PCI.
Refresh patches:
- 000-spi-fix-fifo.patch
- 330-mtk-bmt-support.patch
- 510-net-mediatek-add-flow-offload-for-mt7623.patch
- 601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch
- 610-pcie-mediatek-fix-clearing-interrupt-status.patch
- 700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch
- 710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
Signed-off-by: Nick Hainke <vincent at systemli.org>
---
...probe-declare-its-reliance-on-msi-domains.patch | 34 +++++++++++++
...dges-declar-their-reliance-on-msi-domains.patch | 44 ++++++++++++++++
...3-advertise-lack-of-built-in-msi-handling.patch | 59 ++++++++++++++++++++++
.../mediatek/patches-5.10/000-spi-fix-fifo.patch | 7 +--
.../patches-5.10/330-mtk-bmt-support.patch | 4 +-
...-net-mediatek-add-flow-offload-for-mt7623.patch | 2 +-
...ek-Use-regmap-to-get-shared-pcie-cfg-base.patch | 12 ++---
...ie-mediatek-fix-clearing-interrupt-status.patch | 2 +-
...t-mtk_eth_soc-add-support-for-coherent-DM.patch | 2 +-
...cie-mediatek-add-support-for-coherent-DMA.patch | 2 +-
10 files changed, 150 insertions(+), 18 deletions(-)
diff --git a/target/linux/generic/backport-5.10/820-v5.13-make-pci_host_common_probe-declare-its-reliance-on-msi-domains.patch b/target/linux/generic/backport-5.10/820-v5.13-make-pci_host_common_probe-declare-its-reliance-on-msi-domains.patch
new file mode 100644
index 0000000000..8ca2b78f74
--- /dev/null
+++ b/target/linux/generic/backport-5.10/820-v5.13-make-pci_host_common_probe-declare-its-reliance-on-msi-domains.patch
@@ -0,0 +1,34 @@
+From 9ec37efb87832b578d7972fc80b04d94f5d2bbe3 Mon Sep 17 00:00:00 2001
+From: Marc Zyngier <maz at kernel.org>
+Date: Tue, 30 Mar 2021 16:11:42 +0100
+Subject: PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI
+ domains
+
+The generic PCI host driver relies on MSI domains for MSIs to
+be provided to its end-points. Make this dependency explicit.
+
+This cures the warnings occuring on arm/arm64 VMs when booted
+with PCI virtio devices and no MSI controller (no GICv3 ITS,
+for example).
+
+It is likely that other drivers will need to express the same
+dependency.
+
+Link: https://lore.kernel.org/r/20210330151145.997953-12-maz@kernel.org
+Signed-off-by: Marc Zyngier <maz at kernel.org>
+Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
+Acked-by: Bjorn Helgaas <bhelgaas at google.com>
+---
+ drivers/pci/controller/pci-host-common.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/pci/controller/pci-host-common.c
++++ b/drivers/pci/controller/pci-host-common.c
+@@ -77,6 +77,7 @@ int pci_host_common_probe(struct platfor
+
+ bridge->sysdata = cfg;
+ bridge->ops = (struct pci_ops *)&ops->pci_ops;
++ bridge->msi_domain = true;
+
+ platform_set_drvdata(pdev, bridge);
+
diff --git a/target/linux/generic/backport-5.10/821-v5.13-let-pci-host-bridges-declar-their-reliance-on-msi-domains.patch b/target/linux/generic/backport-5.10/821-v5.13-let-pci-host-bridges-declar-their-reliance-on-msi-domains.patch
new file mode 100644
index 0000000000..9cf63af333
--- /dev/null
+++ b/target/linux/generic/backport-5.10/821-v5.13-let-pci-host-bridges-declar-their-reliance-on-msi-domains.patch
@@ -0,0 +1,44 @@
+From 94e89b145371b68fa0ea294855adebcd03e0522e Mon Sep 17 00:00:00 2001
+From: Marc Zyngier <maz at kernel.org>
+Date: Tue, 30 Mar 2021 16:11:41 +0100
+Subject: PCI/MSI: Let PCI host bridges declare their reliance on MSI domains
+
+There is a whole class of host bridges that cannot know whether
+MSIs will be provided or not, as they rely on other blocks
+to provide the MSI functionnality, using MSI domains. This is
+the case for example on systems that use the ARM GIC architecture.
+
+Introduce a new attribute ('msi_domain') indicating that implicit
+dependency, and use this property to set the NO_MSI flag when
+no MSI domain is found at probe time.
+
+Link: https://lore.kernel.org/r/20210330151145.997953-11-maz@kernel.org
+Signed-off-by: Marc Zyngier <maz at kernel.org>
+Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
+Acked-by: Bjorn Helgaas <bhelgaas at google.com>
+---
+ drivers/pci/probe.c | 2 ++
+ include/linux/pci.h | 1 +
+ 2 files changed, 3 insertions(+)
+
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -925,6 +925,8 @@ static int pci_register_host_bridge(stru
+ device_enable_async_suspend(bus->bridge);
+ pci_set_bus_of_node(bus);
+ pci_set_bus_msi_domain(bus);
++ if (bridge->msi_domain && !dev_get_msi_domain(&bus->dev))
++ bus->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
+
+ if (!parent)
+ set_dev_node(bus->bridge, pcibus_to_node(bus));
+--- a/include/linux/pci.h
++++ b/include/linux/pci.h
+@@ -545,6 +545,7 @@ struct pci_host_bridge {
+ unsigned int native_dpc:1; /* OS may use PCIe DPC */
+ unsigned int preserve_config:1; /* Preserve FW resource setup */
+ unsigned int size_windows:1; /* Enable root bus sizing */
++ unsigned int msi_domain:1; /* Bridge wants MSI domain */
+
+ /* Resource alignment requirements */
+ resource_size_t (*align_resource)(struct pci_dev *dev,
diff --git a/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch b/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch
new file mode 100644
index 0000000000..c11aedd814
--- /dev/null
+++ b/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch
@@ -0,0 +1,59 @@
+From 645e9c38383d7fcde2784ee537fa18ec9bed54d9 Mon Sep 17 00:00:00 2001
+From: Thomas Gleixner <tglx at linutronix.de>
+Date: Tue, 30 Mar 2021 16:11:43 +0100
+Subject: PCI: mediatek: Advertise lack of built-in MSI handling
+
+Some Mediatek host bridges cannot handle MSIs, which is sad.
+This also results in an ugly warning at device probe time,
+as the core PCI code wasn't told that MSIs were not available.
+
+Advertise this fact to the rest of the core PCI code by
+using the 'msi_domain' attribute, which still opens the possibility
+for another block to provide the MSI functionnality.
+
+[maz: commit message, switched over to msi_domain attribute]
+
+Link: https://lore.kernel.org/r/20210330151145.997953-13-maz@kernel.org
+Reported-by: Frank Wunderlich <frank-w at public-files.de>
+Signed-off-by: Thomas Gleixner <tglx at linutronix.de>
+Signed-off-by: Marc Zyngier <maz at kernel.org>
+Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
+Acked-by: Bjorn Helgaas <bhelgaas at google.com>
+---
+ drivers/pci/controller/pcie-mediatek.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/pci/controller/pcie-mediatek.c
++++ b/drivers/pci/controller/pcie-mediatek.c
+@@ -143,6 +143,7 @@ struct mtk_pcie_port;
+ * struct mtk_pcie_soc - differentiate between host generations
+ * @need_fix_class_id: whether this host's class ID needed to be fixed or not
+ * @need_fix_device_id: whether this host's device ID needed to be fixed or not
++ * @no_msi: Bridge has no MSI support, and relies on an external block
+ * @device_id: device ID which this host need to be fixed
+ * @ops: pointer to configuration access functions
+ * @startup: pointer to controller setting functions
+@@ -151,6 +152,7 @@ struct mtk_pcie_port;
+ struct mtk_pcie_soc {
+ bool need_fix_class_id;
+ bool need_fix_device_id;
++ bool no_msi;
+ unsigned int device_id;
+ struct pci_ops *ops;
+ int (*startup)(struct mtk_pcie_port *port);
+@@ -1087,6 +1089,7 @@ static int mtk_pcie_probe(struct platfor
+
+ host->ops = pcie->soc->ops;
+ host->sysdata = pcie;
++ host->msi_domain = pcie->soc->no_msi;
+
+ err = pci_host_probe(host);
+ if (err)
+@@ -1176,6 +1179,7 @@ static const struct dev_pm_ops mtk_pcie_
+ };
+
+ static const struct mtk_pcie_soc mtk_pcie_soc_v1 = {
++ .no_msi = true,
+ .ops = &mtk_pcie_ops,
+ .startup = mtk_pcie_startup_port,
+ };
diff --git a/target/linux/mediatek/patches-5.10/000-spi-fix-fifo.patch b/target/linux/mediatek/patches-5.10/000-spi-fix-fifo.patch
index a7ac93a208..7a1462fc92 100644
--- a/target/linux/mediatek/patches-5.10/000-spi-fix-fifo.patch
+++ b/target/linux/mediatek/patches-5.10/000-spi-fix-fifo.patch
@@ -18,11 +18,9 @@ Signed-off-by: Mark Brown <broonie at kernel.org>
drivers/spi/spi-mt65xx.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
-diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
-index 976f73b9e2998..8d5fa7f1e5069 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
-@@ -427,13 +427,23 @@ static int mtk_spi_fifo_transfer(struct spi_master *master,
+@@ -434,13 +434,23 @@ static int mtk_spi_fifo_transfer(struct
mtk_spi_setup_packet(master);
cnt = xfer->len / 4;
@@ -49,6 +47,3 @@ index 976f73b9e2998..8d5fa7f1e5069 100644
}
mtk_spi_enable_transfer(master);
---
-cgit 1.2.3-1.el7
-
diff --git a/target/linux/mediatek/patches-5.10/330-mtk-bmt-support.patch b/target/linux/mediatek/patches-5.10/330-mtk-bmt-support.patch
index 504c602c50..699870fbd6 100644
--- a/target/linux/mediatek/patches-5.10/330-mtk-bmt-support.patch
+++ b/target/linux/mediatek/patches-5.10/330-mtk-bmt-support.patch
@@ -815,7 +815,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
-@@ -1139,6 +1140,8 @@ static int spinand_probe(struct spi_mem
+@@ -1140,6 +1141,8 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@@ -824,7 +824,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
-@@ -1164,6 +1167,7 @@ static int spinand_remove(struct spi_mem
+@@ -1165,6 +1168,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;
diff --git a/target/linux/mediatek/patches-5.10/510-net-mediatek-add-flow-offload-for-mt7623.patch b/target/linux/mediatek/patches-5.10/510-net-mediatek-add-flow-offload-for-mt7623.patch
index 27bc1a60b2..7585d6cf18 100644
--- a/target/linux/mediatek/patches-5.10/510-net-mediatek-add-flow-offload-for-mt7623.patch
+++ b/target/linux/mediatek/patches-5.10/510-net-mediatek-add-flow-offload-for-mt7623.patch
@@ -14,7 +14,7 @@ Signed-off-by: Frank Wunderlich <frank-w at public-files.de>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -3272,6 +3272,7 @@ static const struct mtk_soc_data mt7623_
+@@ -3274,6 +3274,7 @@ static const struct mtk_soc_data mt7623_
.hw_features = MTK_HW_FEATURES,
.required_clks = MT7623_CLKS_BITMAP,
.required_pctl = true,
diff --git a/target/linux/mediatek/patches-5.10/601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch b/target/linux/mediatek/patches-5.10/601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch
index 9c18565319..fea9486d30 100644
--- a/target/linux/mediatek/patches-5.10/601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch
+++ b/target/linux/mediatek/patches-5.10/601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch
@@ -150,7 +150,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
#include <linux/reset.h>
#include "../pci.h"
-@@ -205,6 +207,7 @@ struct mtk_pcie_port {
+@@ -207,6 +209,7 @@ struct mtk_pcie_port {
* struct mtk_pcie - PCIe host information
* @dev: pointer to PCIe device
* @base: IO mapped register base
@@ -158,7 +158,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
* @free_ck: free-run reference clock
* @mem: non-prefetchable memory resource
* @ports: pointer to PCIe port information
-@@ -213,6 +216,7 @@ struct mtk_pcie_port {
+@@ -215,6 +218,7 @@ struct mtk_pcie_port {
struct mtk_pcie {
struct device *dev;
void __iomem *base;
@@ -166,7 +166,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
struct clk *free_ck;
struct list_head ports;
-@@ -648,7 +652,7 @@ static int mtk_pcie_setup_irq(struct mtk
+@@ -650,7 +654,7 @@ static int mtk_pcie_setup_irq(struct mtk
return err;
}
@@ -175,7 +175,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
if (port->irq < 0)
return port->irq;
-@@ -674,12 +678,11 @@ static int mtk_pcie_startup_port_v2(stru
+@@ -676,12 +680,11 @@ static int mtk_pcie_startup_port_v2(stru
if (!mem)
return -EINVAL;
@@ -193,7 +193,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
}
/* Assert all reset signals */
-@@ -983,6 +986,7 @@ static int mtk_pcie_subsys_powerup(struc
+@@ -985,6 +988,7 @@ static int mtk_pcie_subsys_powerup(struc
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
struct resource *regs;
@@ -201,7 +201,7 @@ Signed-off-by: chuanjia.liu <Chuanjia.Liu at mediatek.com>
int err;
/* get shared registers, which are optional */
-@@ -995,6 +999,13 @@ static int mtk_pcie_subsys_powerup(struc
+@@ -997,6 +1001,13 @@ static int mtk_pcie_subsys_powerup(struc
}
}
diff --git a/target/linux/mediatek/patches-5.10/610-pcie-mediatek-fix-clearing-interrupt-status.patch b/target/linux/mediatek/patches-5.10/610-pcie-mediatek-fix-clearing-interrupt-status.patch
index 7b74a8ac73..031582a788 100644
--- a/target/linux/mediatek/patches-5.10/610-pcie-mediatek-fix-clearing-interrupt-status.patch
+++ b/target/linux/mediatek/patches-5.10/610-pcie-mediatek-fix-clearing-interrupt-status.patch
@@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
-@@ -613,10 +613,10 @@ static void mtk_pcie_intr_handler(struct
+@@ -615,10 +615,10 @@ static void mtk_pcie_intr_handler(struct
if (status & INTX_MASK) {
for_each_set_bit_from(bit, &status, PCI_NUM_INTX + INTX_SHIFT) {
/* Clear the INTx */
diff --git a/target/linux/mediatek/patches-5.10/700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch b/target/linux/mediatek/patches-5.10/700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch
index e131bfdf17..529a252d3b 100644
--- a/target/linux/mediatek/patches-5.10/700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch
+++ b/target/linux/mediatek/patches-5.10/700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch
@@ -51,7 +51,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
ret = device_reset(eth->dev);
if (ret) {
-@@ -3074,6 +3082,16 @@ static int mtk_probe(struct platform_dev
+@@ -3076,6 +3084,16 @@ static int mtk_probe(struct platform_dev
}
}
diff --git a/target/linux/mediatek/patches-5.10/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch b/target/linux/mediatek/patches-5.10/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
index e3800bdf9d..71ed18e1ab 100644
--- a/target/linux/mediatek/patches-5.10/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
+++ b/target/linux/mediatek/patches-5.10/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
@@ -78,7 +78,7 @@ Signed-off-by: Felix Fietkau <nbd at nbd.name>
struct mtk_pcie_port;
/**
-@@ -1040,6 +1046,27 @@ static int mtk_pcie_setup(struct mtk_pci
+@@ -1042,6 +1048,27 @@ static int mtk_pcie_setup(struct mtk_pci
struct mtk_pcie_port *port, *tmp;
int err;
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