| Message ID | 20191028163256.8004-12-robh@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCI host resource consolidation | expand |
[+Eric] On Mon, Oct 28, 2019 at 11:32:42AM -0500, Rob Herring wrote: > The Rockchip host bridge driver doesn't need to store outboard resources > in its private struct as they are already stored in struct > pci_host_bridge. > > Cc: Shawn Lin <shawn.lin@rock-chips.com> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > Cc: Andrew Murray <andrew.murray@arm.com> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Heiko Stuebner <heiko@sntech.de> > Cc: linux-rockchip@lists.infradead.org > Signed-off-by: Rob Herring <robh@kernel.org> > --- > drivers/pci/controller/pcie-rockchip-host.c | 54 +++++++++------------ > drivers/pci/controller/pcie-rockchip.h | 5 -- > 2 files changed, 23 insertions(+), 36 deletions(-) > > diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c > index 8d2e6f2e141e..f375e55ea02e 100644 > --- a/drivers/pci/controller/pcie-rockchip-host.c > +++ b/drivers/pci/controller/pcie-rockchip-host.c > @@ -806,19 +806,28 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip, > static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > { > struct device *dev = rockchip->dev; > + struct pci_host_bridge *bridge = pci_host_bridge_from_priv(rockchip); > + struct resource_entry *entry; > + u64 pci_addr, size; > int offset; > int err; > int reg_no; > > rockchip_pcie_cfg_configuration_accesses(rockchip, > AXI_WRAPPER_TYPE0_CFG); > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM); > + if (!entry) > + return -ENODEV; > + > + size = resource_size(entry->res); > + pci_addr = entry->res->start - entry->offset; > + rockchip->msg_bus_addr = pci_addr; > > - for (reg_no = 0; reg_no < (rockchip->mem_size >> 20); reg_no++) { > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1, > AXI_WRAPPER_MEM_WRITE, > 20 - 1, > - rockchip->mem_bus_addr + > - (reg_no << 20), > + pci_addr + (reg_no << 20), > 0); > if (err) { > dev_err(dev, "program RC mem outbound ATU failed\n"); > @@ -832,14 +841,20 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > return err; > } > > - offset = rockchip->mem_size >> 20; > - for (reg_no = 0; reg_no < (rockchip->io_size >> 20); reg_no++) { > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_IO); > + if (!entry) > + return -ENODEV; > + > + size = resource_size(entry->res); > + pci_addr = entry->res->start - entry->offset; > + > + offset = size >> 20; Just trying to find what triggers: https://lore.kernel.org/linux-pci/CAFqH_52BiQJzNEzd_0pB3K+JmzVOVikYQo0xfiC0J-DwiXdtqw@mail.gmail.com/T/#u I think this offset calculation changed the behaviour: Before: > - offset = rockchip->mem_size >> 20; Now: > + offset = size >> 20; size must be the IORESOURCE_MEM resource size instead we are using the IORESOURCE_IO size so IIUC the ATU window setup may be compromised. Lorenzo > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > err = rockchip_pcie_prog_ob_atu(rockchip, > reg_no + 1 + offset, > AXI_WRAPPER_IO_WRITE, > 20 - 1, > - rockchip->io_bus_addr + > - (reg_no << 20), > + pci_addr + (reg_no << 20), > 0); > if (err) { > dev_err(dev, "program RC io outbound ATU failed\n"); > @@ -852,8 +867,7 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > AXI_WRAPPER_NOR_MSG, > 20 - 1, 0, 0); > > - rockchip->msg_bus_addr = rockchip->mem_bus_addr + > - ((reg_no + offset) << 20); > + rockchip->msg_bus_addr += ((reg_no + offset) << 20); > return err; > } > > @@ -951,7 +965,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > struct pci_bus *bus, *child; > struct pci_host_bridge *bridge; > struct resource *bus_res; > - struct resource_entry *win; > int err; > > if (!dev->of_node) > @@ -997,27 +1010,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > rockchip->root_bus_nr = bus_res->start; > > - /* Get the I/O and memory ranges from DT */ > - 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; > - rockchip->io = io; > - break; > - case IORESOURCE_MEM: > - mem = win->res; > - mem->name = "MEM"; > - rockchip->mem_size = resource_size(mem); > - rockchip->mem_bus_addr = mem->start - win->offset; > - break; > - default: > - continue; > - } > - } > - > err = rockchip_pcie_cfg_atu(rockchip); > if (err) > goto err_remove_irq_domain; > diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h > index 8e87a059ce73..bef42a803b56 100644 > --- a/drivers/pci/controller/pcie-rockchip.h > +++ b/drivers/pci/controller/pcie-rockchip.h > @@ -304,13 +304,8 @@ struct rockchip_pcie { > struct irq_domain *irq_domain; > int offset; > struct pci_bus *root_bus; > - struct resource *io; > - phys_addr_t io_bus_addr; > - u32 io_size; > void __iomem *msg_region; > - u32 mem_size; > phys_addr_t msg_bus_addr; > - phys_addr_t mem_bus_addr; > bool is_rc; > struct resource *mem_res; > }; > -- > 2.20.1 >
Hi Lorenzo, Many thanks to look at this. Missatge de Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> del dia dv., 6 de des. 2019 a les 16:36: > > [+Eric] > > On Mon, Oct 28, 2019 at 11:32:42AM -0500, Rob Herring wrote: > > The Rockchip host bridge driver doesn't need to store outboard resources > > in its private struct as they are already stored in struct > > pci_host_bridge. > > > > Cc: Shawn Lin <shawn.lin@rock-chips.com> > > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > > Cc: Andrew Murray <andrew.murray@arm.com> > > Cc: Bjorn Helgaas <bhelgaas@google.com> > > Cc: Heiko Stuebner <heiko@sntech.de> > > Cc: linux-rockchip@lists.infradead.org > > Signed-off-by: Rob Herring <robh@kernel.org> > > --- > > drivers/pci/controller/pcie-rockchip-host.c | 54 +++++++++------------ > > drivers/pci/controller/pcie-rockchip.h | 5 -- > > 2 files changed, 23 insertions(+), 36 deletions(-) > > > > diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c > > index 8d2e6f2e141e..f375e55ea02e 100644 > > --- a/drivers/pci/controller/pcie-rockchip-host.c > > +++ b/drivers/pci/controller/pcie-rockchip-host.c > > @@ -806,19 +806,28 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip, > > static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > { > > struct device *dev = rockchip->dev; > > + struct pci_host_bridge *bridge = pci_host_bridge_from_priv(rockchip); > > + struct resource_entry *entry; > > + u64 pci_addr, size; > > int offset; > > int err; > > int reg_no; > > > > rockchip_pcie_cfg_configuration_accesses(rockchip, > > AXI_WRAPPER_TYPE0_CFG); > > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM); > > + if (!entry) > > + return -ENODEV; > > + > > + size = resource_size(entry->res); > > + pci_addr = entry->res->start - entry->offset; > > + rockchip->msg_bus_addr = pci_addr; > > > > - for (reg_no = 0; reg_no < (rockchip->mem_size >> 20); reg_no++) { > > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > > err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1, > > AXI_WRAPPER_MEM_WRITE, > > 20 - 1, > > - rockchip->mem_bus_addr + > > - (reg_no << 20), > > + pci_addr + (reg_no << 20), > > 0); > > if (err) { > > dev_err(dev, "program RC mem outbound ATU failed\n"); > > @@ -832,14 +841,20 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > return err; > > } > > > > - offset = rockchip->mem_size >> 20; > > - for (reg_no = 0; reg_no < (rockchip->io_size >> 20); reg_no++) { > > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_IO); > > + if (!entry) > > + return -ENODEV; > > + > > + size = resource_size(entry->res); > > + pci_addr = entry->res->start - entry->offset; > > + > > + offset = size >> 20; > > Just trying to find what triggers: > > https://lore.kernel.org/linux-pci/CAFqH_52BiQJzNEzd_0pB3K+JmzVOVikYQo0xfiC0J-DwiXdtqw@mail.gmail.com/T/#u > > I think this offset calculation changed the behaviour: > > Before: > > > - offset = rockchip->mem_size >> 20; > > Now: > > > + offset = size >> 20; > > size must be the IORESOURCE_MEM resource size instead we are using the > IORESOURCE_IO size so IIUC the ATU window setup may be compromised. > Are you suggesting that something like this [1] fixes the issue? Indeed,I don't see the warning with this applied and wifi which is connected via pcie is working. But I don't get why the offset should be from the MEM resource instead of the IO resource. [1] https://pastebin.com/FBj95gNR Thanks, Enric > Lorenzo > > > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > > err = rockchip_pcie_prog_ob_atu(rockchip, > > reg_no + 1 + offset, > > AXI_WRAPPER_IO_WRITE, > > 20 - 1, > > - rockchip->io_bus_addr + > > - (reg_no << 20), > > + pci_addr + (reg_no << 20), > > 0); > > if (err) { > > dev_err(dev, "program RC io outbound ATU failed\n"); > > @@ -852,8 +867,7 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > AXI_WRAPPER_NOR_MSG, > > 20 - 1, 0, 0); > > > > - rockchip->msg_bus_addr = rockchip->mem_bus_addr + > > - ((reg_no + offset) << 20); > > + rockchip->msg_bus_addr += ((reg_no + offset) << 20); > > return err; > > } > > > > @@ -951,7 +965,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > struct pci_bus *bus, *child; > > struct pci_host_bridge *bridge; > > struct resource *bus_res; > > - struct resource_entry *win; > > int err; > > > > if (!dev->of_node) > > @@ -997,27 +1010,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > > > rockchip->root_bus_nr = bus_res->start; > > > > - /* Get the I/O and memory ranges from DT */ > > - 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; > > - rockchip->io = io; > > - break; > > - case IORESOURCE_MEM: > > - mem = win->res; > > - mem->name = "MEM"; > > - rockchip->mem_size = resource_size(mem); > > - rockchip->mem_bus_addr = mem->start - win->offset; > > - break; > > - default: > > - continue; > > - } > > - } > > - > > err = rockchip_pcie_cfg_atu(rockchip); > > if (err) > > goto err_remove_irq_domain; > > diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h > > index 8e87a059ce73..bef42a803b56 100644 > > --- a/drivers/pci/controller/pcie-rockchip.h > > +++ b/drivers/pci/controller/pcie-rockchip.h > > @@ -304,13 +304,8 @@ struct rockchip_pcie { > > struct irq_domain *irq_domain; > > int offset; > > struct pci_bus *root_bus; > > - struct resource *io; > > - phys_addr_t io_bus_addr; > > - u32 io_size; > > void __iomem *msg_region; > > - u32 mem_size; > > phys_addr_t msg_bus_addr; > > - phys_addr_t mem_bus_addr; > > bool is_rc; > > struct resource *mem_res; > > }; > > -- > > 2.20.1 > >
Hi, Missatge de Enric Balletbo Serra <eballetbo@gmail.com> del dia dt., 10 de des. 2019 a les 18:33: > > Hi Lorenzo, > > Many thanks to look at this. > > Missatge de Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> del dia dv., > 6 de des. 2019 a les 16:36: > > > > [+Eric] > > > > On Mon, Oct 28, 2019 at 11:32:42AM -0500, Rob Herring wrote: > > > The Rockchip host bridge driver doesn't need to store outboard resources > > > in its private struct as they are already stored in struct > > > pci_host_bridge. > > > > > > Cc: Shawn Lin <shawn.lin@rock-chips.com> > > > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > > > Cc: Andrew Murray <andrew.murray@arm.com> > > > Cc: Bjorn Helgaas <bhelgaas@google.com> > > > Cc: Heiko Stuebner <heiko@sntech.de> > > > Cc: linux-rockchip@lists.infradead.org > > > Signed-off-by: Rob Herring <robh@kernel.org> > > > --- > > > drivers/pci/controller/pcie-rockchip-host.c | 54 +++++++++------------ > > > drivers/pci/controller/pcie-rockchip.h | 5 -- > > > 2 files changed, 23 insertions(+), 36 deletions(-) > > > > > > diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c > > > index 8d2e6f2e141e..f375e55ea02e 100644 > > > --- a/drivers/pci/controller/pcie-rockchip-host.c > > > +++ b/drivers/pci/controller/pcie-rockchip-host.c > > > @@ -806,19 +806,28 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip, > > > static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > > { > > > struct device *dev = rockchip->dev; > > > + struct pci_host_bridge *bridge = pci_host_bridge_from_priv(rockchip); > > > + struct resource_entry *entry; > > > + u64 pci_addr, size; > > > int offset; > > > int err; > > > int reg_no; > > > > > > rockchip_pcie_cfg_configuration_accesses(rockchip, > > > AXI_WRAPPER_TYPE0_CFG); > > > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM); > > > + if (!entry) > > > + return -ENODEV; > > > + > > > + size = resource_size(entry->res); > > > + pci_addr = entry->res->start - entry->offset; > > > + rockchip->msg_bus_addr = pci_addr; > > > > > > - for (reg_no = 0; reg_no < (rockchip->mem_size >> 20); reg_no++) { > > > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > > > err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1, > > > AXI_WRAPPER_MEM_WRITE, > > > 20 - 1, > > > - rockchip->mem_bus_addr + > > > - (reg_no << 20), > > > + pci_addr + (reg_no << 20), > > > 0); > > > if (err) { > > > dev_err(dev, "program RC mem outbound ATU failed\n"); > > > @@ -832,14 +841,20 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > > return err; > > > } > > > > > > - offset = rockchip->mem_size >> 20; > > > - for (reg_no = 0; reg_no < (rockchip->io_size >> 20); reg_no++) { > > > + entry = resource_list_first_type(&bridge->windows, IORESOURCE_IO); > > > + if (!entry) > > > + return -ENODEV; > > > + > > > + size = resource_size(entry->res); > > > + pci_addr = entry->res->start - entry->offset; > > > + > > > + offset = size >> 20; > > > > Just trying to find what triggers: > > > > https://lore.kernel.org/linux-pci/CAFqH_52BiQJzNEzd_0pB3K+JmzVOVikYQo0xfiC0J-DwiXdtqw@mail.gmail.com/T/#u > > > > I think this offset calculation changed the behaviour: > > > > Before: > > > > > - offset = rockchip->mem_size >> 20; > > > > Now: > > > > > + offset = size >> 20; > > > > size must be the IORESOURCE_MEM resource size instead we are using the > > IORESOURCE_IO size so IIUC the ATU window setup may be compromised. > > > > Are you suggesting that something like this [1] fixes the issue? > > Indeed,I don't see the warning with this applied and wifi which is > connected via pcie is working. But I don't get why the offset should > be from the MEM resource instead of the IO resource. > > [1] https://pastebin.com/FBj95gNR > I think I understood, so I send a fix [2] for this [2] https://lkml.org/lkml/2019/12/11/199 Thanks, Enric > Thanks, > Enric > > > Lorenzo > > > > > + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { > > > err = rockchip_pcie_prog_ob_atu(rockchip, > > > reg_no + 1 + offset, > > > AXI_WRAPPER_IO_WRITE, > > > 20 - 1, > > > - rockchip->io_bus_addr + > > > - (reg_no << 20), > > > + pci_addr + (reg_no << 20), > > > 0); > > > if (err) { > > > dev_err(dev, "program RC io outbound ATU failed\n"); > > > @@ -852,8 +867,7 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) > > > AXI_WRAPPER_NOR_MSG, > > > 20 - 1, 0, 0); > > > > > > - rockchip->msg_bus_addr = rockchip->mem_bus_addr + > > > - ((reg_no + offset) << 20); > > > + rockchip->msg_bus_addr += ((reg_no + offset) << 20); > > > return err; > > > } > > > > > > @@ -951,7 +965,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > > struct pci_bus *bus, *child; > > > struct pci_host_bridge *bridge; > > > struct resource *bus_res; > > > - struct resource_entry *win; > > > int err; > > > > > > if (!dev->of_node) > > > @@ -997,27 +1010,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) > > > > > > rockchip->root_bus_nr = bus_res->start; > > > > > > - /* Get the I/O and memory ranges from DT */ > > > - 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; > > > - rockchip->io = io; > > > - break; > > > - case IORESOURCE_MEM: > > > - mem = win->res; > > > - mem->name = "MEM"; > > > - rockchip->mem_size = resource_size(mem); > > > - rockchip->mem_bus_addr = mem->start - win->offset; > > > - break; > > > - default: > > > - continue; > > > - } > > > - } > > > - > > > err = rockchip_pcie_cfg_atu(rockchip); > > > if (err) > > > goto err_remove_irq_domain; > > > diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h > > > index 8e87a059ce73..bef42a803b56 100644 > > > --- a/drivers/pci/controller/pcie-rockchip.h > > > +++ b/drivers/pci/controller/pcie-rockchip.h > > > @@ -304,13 +304,8 @@ struct rockchip_pcie { > > > struct irq_domain *irq_domain; > > > int offset; > > > struct pci_bus *root_bus; > > > - struct resource *io; > > > - phys_addr_t io_bus_addr; > > > - u32 io_size; > > > void __iomem *msg_region; > > > - u32 mem_size; > > > phys_addr_t msg_bus_addr; > > > - phys_addr_t mem_bus_addr; > > > bool is_rc; > > > struct resource *mem_res; > > > }; > > > -- > > > 2.20.1 > > >
diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c index 8d2e6f2e141e..f375e55ea02e 100644 --- a/drivers/pci/controller/pcie-rockchip-host.c +++ b/drivers/pci/controller/pcie-rockchip-host.c @@ -806,19 +806,28 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip, static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) { struct device *dev = rockchip->dev; + struct pci_host_bridge *bridge = pci_host_bridge_from_priv(rockchip); + struct resource_entry *entry; + u64 pci_addr, size; int offset; int err; int reg_no; rockchip_pcie_cfg_configuration_accesses(rockchip, AXI_WRAPPER_TYPE0_CFG); + entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM); + if (!entry) + return -ENODEV; + + size = resource_size(entry->res); + pci_addr = entry->res->start - entry->offset; + rockchip->msg_bus_addr = pci_addr; - for (reg_no = 0; reg_no < (rockchip->mem_size >> 20); reg_no++) { + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1, AXI_WRAPPER_MEM_WRITE, 20 - 1, - rockchip->mem_bus_addr + - (reg_no << 20), + pci_addr + (reg_no << 20), 0); if (err) { dev_err(dev, "program RC mem outbound ATU failed\n"); @@ -832,14 +841,20 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) return err; } - offset = rockchip->mem_size >> 20; - for (reg_no = 0; reg_no < (rockchip->io_size >> 20); reg_no++) { + entry = resource_list_first_type(&bridge->windows, IORESOURCE_IO); + if (!entry) + return -ENODEV; + + size = resource_size(entry->res); + pci_addr = entry->res->start - entry->offset; + + offset = size >> 20; + for (reg_no = 0; reg_no < (size >> 20); reg_no++) { err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1 + offset, AXI_WRAPPER_IO_WRITE, 20 - 1, - rockchip->io_bus_addr + - (reg_no << 20), + pci_addr + (reg_no << 20), 0); if (err) { dev_err(dev, "program RC io outbound ATU failed\n"); @@ -852,8 +867,7 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip) AXI_WRAPPER_NOR_MSG, 20 - 1, 0, 0); - rockchip->msg_bus_addr = rockchip->mem_bus_addr + - ((reg_no + offset) << 20); + rockchip->msg_bus_addr += ((reg_no + offset) << 20); return err; } @@ -951,7 +965,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) struct pci_bus *bus, *child; struct pci_host_bridge *bridge; struct resource *bus_res; - struct resource_entry *win; int err; if (!dev->of_node) @@ -997,27 +1010,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev) rockchip->root_bus_nr = bus_res->start; - /* Get the I/O and memory ranges from DT */ - 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; - rockchip->io = io; - break; - case IORESOURCE_MEM: - mem = win->res; - mem->name = "MEM"; - rockchip->mem_size = resource_size(mem); - rockchip->mem_bus_addr = mem->start - win->offset; - break; - default: - continue; - } - } - err = rockchip_pcie_cfg_atu(rockchip); if (err) goto err_remove_irq_domain; diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h index 8e87a059ce73..bef42a803b56 100644 --- a/drivers/pci/controller/pcie-rockchip.h +++ b/drivers/pci/controller/pcie-rockchip.h @@ -304,13 +304,8 @@ struct rockchip_pcie { struct irq_domain *irq_domain; int offset; struct pci_bus *root_bus; - struct resource *io; - phys_addr_t io_bus_addr; - u32 io_size; void __iomem *msg_region; - u32 mem_size; phys_addr_t msg_bus_addr; - phys_addr_t mem_bus_addr; bool is_rc; struct resource *mem_res; };
The Rockchip host bridge driver doesn't need to store outboard resources in its private struct as they are already stored in struct pci_host_bridge. Cc: Shawn Lin <shawn.lin@rock-chips.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Andrew Murray <andrew.murray@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-rockchip@lists.infradead.org Signed-off-by: Rob Herring <robh@kernel.org> --- drivers/pci/controller/pcie-rockchip-host.c | 54 +++++++++------------ drivers/pci/controller/pcie-rockchip.h | 5 -- 2 files changed, 23 insertions(+), 36 deletions(-)