On Thu, Dec 05, 2019 at 06:56:01PM +0100, Enric Balletbo Serra wrote: > 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 Could you please post the kernel log again ? Lorenzo > > 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
