Hi Rob, Missatge de Rob Herring <robh@xxxxxxxxxx> del dia dl., 28 d’oct. 2019 a les 17:38: > > Convert the Rockchip host bridge to use the common > pci_parse_request_of_pci_ranges(). > > There's no need to assign the resources to a temporary list first. Just > use bridge->windows directly and remove all the temporary list handling. > > Cc: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> > Cc: Andrew Murray <andrew.murray@xxxxxxx> > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > Cc: Heiko Stuebner <heiko@xxxxxxxxx> > Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx > Signed-off-by: Rob Herring <robh@xxxxxxxxxx> > --- I just tested mainline on my Samsung Chromebook Plus, and since yesterday I'm getting a "synchronous external abort" [1]. After a bisection, I found that this patch triggers the issue (this patch was merged yesterday) I didn't look in detail yet, but if you have any idea of what could be the problem, that would be great. Thanks, Enric [1] https://hastebin.com/adasegihiw.rb > drivers/pci/controller/pcie-rockchip-host.c | 36 ++++----------------- > 1 file changed, 7 insertions(+), 29 deletions(-) > > diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c > index ef8e677ce9d1..8d2e6f2e141e 100644 > --- a/drivers/pci/controller/pcie-rockchip-host.c > +++ b/drivers/pci/controller/pcie-rockchip-host.c > @@ -950,14 +950,10 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > struct device *dev = &pdev->dev; > struct pci_bus *bus, *child; > struct pci_host_bridge *bridge; > + struct resource *bus_res; > struct resource_entry *win; > - resource_size_t io_base; > - struct resource *mem; > - struct resource *io; > int err; > > - LIST_HEAD(res); > - > if (!dev->of_node) > return -ENODEV; > > @@ -995,29 +991,20 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > if (err < 0) > goto err_deinit_port; > > - err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, > - &res, &io_base); > + err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, &bus_res); > if (err) > goto err_remove_irq_domain; > > - err = devm_request_pci_bus_resources(dev, &res); > - if (err) > - goto err_free_res; > + rockchip->root_bus_nr = bus_res->start; > > /* Get the I/O and memory ranges from DT */ > - resource_list_for_each_entry(win, &res) { > + resource_list_for_each_entry(win, &bridge->windows) { > switch (resource_type(win->res)) { > case IORESOURCE_IO: > io = win->res; > io->name = "I/O"; > rockchip->io_size = resource_size(io); > rockchip->io_bus_addr = io->start - win->offset; > - err = pci_remap_iospace(io, io_base); > - if (err) { > - dev_warn(dev, "error %d: failed to map resource %pR\n", > - err, io); > - continue; > - } > rockchip->io = io; > break; > case IORESOURCE_MEM: > @@ -1026,9 +1013,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > rockchip->mem_size = resource_size(mem); > rockchip->mem_bus_addr = mem->start - win->offset; > break; > - case IORESOURCE_BUS: > - rockchip->root_bus_nr = win->res->start; > - break; > default: > continue; > } > @@ -1036,15 +1020,14 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > err = rockchip_pcie_cfg_atu(rockchip); > if (err) > - goto err_unmap_iospace; > + goto err_remove_irq_domain; > > rockchip->msg_region = devm_ioremap(dev, rockchip->msg_bus_addr, SZ_1M); > if (!rockchip->msg_region) { > err = -ENOMEM; > - goto err_unmap_iospace; > + goto err_remove_irq_domain; > } > > - list_splice_init(&res, &bridge->windows); > bridge->dev.parent = dev; > bridge->sysdata = rockchip; > bridge->busnr = 0; > @@ -1054,7 +1037,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > err = pci_scan_root_bus_bridge(bridge); > if (err < 0) > - goto err_unmap_iospace; > + goto err_remove_irq_domain; > > bus = bridge->bus; > > @@ -1068,10 +1051,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > pci_bus_add_devices(bus); > return 0; > > -err_unmap_iospace: > - pci_unmap_iospace(rockchip->io); > -err_free_res: > - pci_free_resource_list(&res); > err_remove_irq_domain: > irq_domain_remove(rockchip->irq_domain); > err_deinit_port: > @@ -1097,7 +1076,6 @@ static int rockchip_pcie_remove(struct platform_device *pdev) > > pci_stop_root_bus(rockchip->root_bus); > pci_remove_root_bus(rockchip->root_bus); > - pci_unmap_iospace(rockchip->io); > irq_domain_remove(rockchip->irq_domain); > > rockchip_pcie_deinit_phys(rockchip); > -- > 2.20.1 > > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-mediatek
