- 18 8月, 2016 4 次提交
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由 Joao Pinto 提交于
Add support for the new iATU Unroll mechanism that will be used from Core version 4.80. The new Cores can support either iATU Unroll or the "old" iATU method, now called Legacy Mode. The driver is perfectly capable of performing well for both. [bhelgaas: split ATU enable timeout to separate patch] Signed-off-by: NJoao Pinto <jpinto@synopsys.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Joao Pinto 提交于
Add a loop with timeout to make sure the iATU is really enabled before subsequent config and I/O accesses. [bhelgaas: split to separate patch, use dev_err() instead of dev_dbg()] Signed-off-by: NJoao Pinto <jpinto@synopsys.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Joao Pinto 提交于
Move the link wait sleep definitions to the .c file as suggested by Jisheng Zhang in a previous patch. Signed-off-by: NJoao Pinto <jpinto@synopsys.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Jisheng Zhang <jszhang@marvell.com>
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由 Bjorn Helgaas 提交于
dw_pcie_readl_rc() reads a u32 value. Previously we stored that value in space supplied by the caller. Return the u32 value directly instead. This makes the calling code read better and makes it obvious that the caller need not initialize the storage. In the following example it isn't clear whether "val" is initialized before being used: dw_pcie_readl_rc(pp, PCI_COMMAND, &val); if (val & PCI_COMMAND_MEMORY) ... No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 02 8月, 2016 14 次提交
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_XGENE drivers/pci/host/Kconfig: bool "X-Gene PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Tanmay Inamdar <tinamdar@apm.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_HOST_THUNDER_PEM drivers/pci/host/Kconfig: bool "Cavium Thunder PCIe controller to off-chip devices" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: David Daney <david.daney@cavium.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_HOST_THUNDER_ECAM drivers/pci/host/Kconfig: bool "Cavium Thunder ECAM controller to on-chip devices on pass-1.x silicon" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: David Daney <david.daney@cavium.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_TEGRA drivers/pci/host/Kconfig: bool "NVIDIA Tegra PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Thierry Reding <thierry.reding@gmail.com> CC: Stephen Warren <swarren@wwwdotorg.org> CC: Alexandre Courbot <gnurou@gmail.com> CC: linux-tegra@vger.kernel.org
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_RCAR_GEN2 drivers/pci/host/Kconfig: bool "Renesas R-Car Gen2 Internal PCI controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog, remove "Module" from author comment] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NSimon Horman <horms+renesas@verge.net.au> Acked-by: NPhil Edworthy <phil.edworthy@renesas.com> CC: Valentine Barshak <valentine.barshak@cogentembedded.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_RCAR_GEN2_PCIE drivers/pci/host/Kconfig: bool "Renesas R-Car PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog, remove "Module" from author comment] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NSimon Horman <horms+renesas@verge.net.au> Acked-by: NPhil Edworthy <phil.edworthy@renesas.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_MVEBU drivers/pci/host/Kconfig: bool "Marvell EBU PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog, remove "Module" from author comment] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Reviewed-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com> CC: Jason Cooper <jason@lakedaemon.net>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_LAYERSCAPE drivers/pci/host/Kconfig: bool "Freescale Layerscape PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Minghuan Lian <minghuan.Lian@freescale.com> CC: Mingkai Hu <mingkai.hu@freescale.com> CC: Roy Zang <tie-fei.zang@freescale.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_KEYSTONE drivers/pci/host/Kconfig: bool "TI Keystone PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Tested-By: NMurali Karicheri <m-karicheri2@ti.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: host/Kconfig:config PCI_HISI host/Kconfig: bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Zhou Wang <wangzhou1@hisilicon.com> CC: Dacai Zhu <zhudacai@hisilicon.com> CC: Gabriele Paoloni <gabriele.paoloni@huawei.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_HOST_GENERIC drivers/pci/host/Kconfig: bool "Generic PCI host controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NWill Deacon <will.deacon@arm.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_DW_PLAT drivers/pci/host/Kconfig: bool "Platform bus based DesignWare PCIe Controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NJoao Pinto <jpinto@synopsys.com> CC: Jingoo Han <jingoohan1@gmail.com> CC: Pratyush Anand <pratyush.anand@gmail.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_ARTPEC6 drivers/pci/host/Kconfig: bool "Axis ARTPEC-6 PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog, add "Author" comment] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Niklas Cassel <niklas.cassel@axis.com> CC: Jesper Nilsson <jesper.nilsson@axis.com>
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由 Paul Gortmaker 提交于
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_ARMADA_8K drivers/pci/host/Kconfig: bool "Marvell Armada-8K PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Replace module_platform_driver() with builtin_platform_driver(), which uses the same init level priority, so init ordering is unchanged. Note that MODULE_DEVICE_TABLE is a no-op for non-modular code. [bhelgaas: changelog] Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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- 30 7月, 2016 1 次提交
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由 Arnd Bergmann 提交于
The DesignWare PCIe driver requires MSI support, so we get a warning for the artpec6 glue driver if that is not enabled: warning: (PCIE_ARTPEC6) selects PCIE_DW which has unmet direct dependencies (PCI && PCI_MSI_IRQ_DOMAIN) Add the same dependency that all other such drivers have. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NNiklas Cassel <niklas.cassel@axis.com>
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- 27 7月, 2016 3 次提交
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由 Thomas Petazzoni 提交于
Add a driver for the Aardvark PCIe controller used on the Marvell Armada 3700 ARM64 SoC. Based on work done by Hezi Shahmoon <hezi.shahmoon@marvell.com> and Marcin Wojtas <mw@semihalf.com>. Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Stephen Warren 提交于
The value that should be programmed into the PADS_REFCLK register varies per SoC. Fix the Tegra PCIe driver to program the correct values. Future SoCs will require different values in cfg0/1, so the two values are stored separately in the per-SoC data structures. For reference, the values are all documented in NV bug 1771116 comment 20. The ASIC team has validated all these values, except for the Tegra20 value which is simply left unchanged in this patch. Signed-off-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NThierry Reding <treding@nvidia.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NThierry Reding <treding@nvidia.com>
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由 Stephen Warren 提交于
tegra_pcie_phy_power_on() calls tegra_pcie_phy_enable() only for legacy SoCs. However, part of tegra_pcie_phy_enable() needs to happen in all cases. Move that code up one level into tegra_pcie_phy_power_on(). [bhelgaas: changelog] Signed-off-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NThierry Reding <treding@nvidia.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Reviewed-by: NSimon Glass <sjg@chromium.org>
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- 26 7月, 2016 6 次提交
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由 Thierry Reding 提交于
pcibios_min_mem only exists on 32-bit ARM, so using it in pci-tegra.c prevents the driver from being used on other arches. In __pci_assign_resource(), we clip the available area based on PCIBIOS_MIN_MEM. On 32-bit ARM, this is pcibios_min_mem, with a default value of 0x01000000. For Tegra, we discover the space available for PCI resource allocation from the device tree, and the lowest address that will ever be available is 0x12000000 (on Tegra124). The Tegra windows are always higher than the default pcibios_min_mem, so the __pci_assign_resource() has no effect, so there's no need to adjust pcibios_min_mem here. [bhelgaas: changelog] Signed-off-by: NThierry Reding <treding@nvidia.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Thierry Reding 提交于
Use the pci_remap_iospace() function provided by the PCI core, rather than the 32-bit ARM-specific pci_ioremap_io(). Signed-off-by: NThierry Reding <treding@nvidia.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Thierry Reding 提交于
Most of the register definitions use lowercase hexadecimal values, with a few exceptions using uppercase. Convert the latter to be more in line with the former. Signed-off-by: NThierry Reding <treding@nvidia.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Cathy Avery 提交于
SR-IOV disabled from the host causes a memory leak. pci-hyperv usually first receives a PCI_EJECT notification and then proceeds to delete the hpdev list entry in hv_eject_device_work(). Later in hv_msi_free() since the device is no longer on the device list hpdev is NULL and hv_msi_free returns without freeing int_desc as part of hv_int_desc_free(). Signed-off-by: NCathy Avery <cavery@redhat.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NJake Oshins <jakeo@microsoft.com>
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由 Christophe JAILLET 提交于
In dra7xx_pcie_init_irq_domain(), the pattern used to check and return error is: if (!var) { dev_err(...); return PTR_ERR(var); } So the returned value in case of error is always 0, which means 'success'. Change it to return -ENODEV instead. Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Reviewed-by: NKishon Vijay Abraham I <kishon@ti.com>
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由 Christophe JAILLET 提交于
In xilinx_pcie_init_irq_domain(), the pattern used to check and return error is: if (!var) { dev_err(...); return PTR_ERR(var); } So the returned value in case of error is always 0, which means 'success'. Change it to return -ENODEV instead. Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NSören Brinkmann <soren.brinkmann@xilinx.com>
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- 23 7月, 2016 3 次提交
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由 Ley Foon Tan 提交于
Some PCIe devices take a long time to reach link up state after retrain. Poll for link up status after retraining the link. This is to make sure the link is up before we access configuration space. [bhelgaas: changelog] Signed-off-by: NLey Foon Tan <lftan@altera.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Ley Foon Tan 提交于
Check the link status before retraining. If the link is not up, don't bother trying to retrain it. [bhelgaas: split code move to separate patch, changelog] Signed-off-by: NLey Foon Tan <lftan@altera.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Move cra_writel(), cra_readl(), and altera_pcie_link_is_up() so a future patch can use them in altera_pcie_retrain(). No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 25 6月, 2016 8 次提交
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由 Bjorn Helgaas 提交于
The switch is the only statement in the resource_list_for_each_entry() loop, so remove unnecessary "continue" statements in the switch. Simplify checking for the required non-prefetchable memory aperture. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Use devm_request_pci_bus_resources() to request host bridge window resources instead of doing it by hand in the driver. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Use devm_request_pci_bus_resources() to request host bridge window resources instead of doing it by hand in the driver. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
41534e53 ("PCI: tegra: Implement a proper resource hierarchy") did two things: 1) It added a top-level resource that encloses all resources declared in the DT description, including registers and bridge apertures, and 2) It requested the bridge apertures, which means the PCI core can track the resources used by PCI devices below the bridge. The latter is necessary, but the former is questionable because there's no guarantee that the bridge registers and the apertures are contiguous. In this example: # cat /proc/iomem 00000000-3fffffff : /pcie-controller@00003000 00000000-00000fff : /pcie-controller@00003000/pci@1,0 00003000-000037ff : pads 00003800-000039ff : afi 10000000-1fffffff : cs the resource tree claims that [mem 0x00003a00-0x0fffffff] is consumed by /pcie-controller@00003000, but it's not mentioned in the DT, and it might actually be used by other devices. Remove the top-level resource so we don't claim more than the device actually consumes. This reintroduces the problem that we can't match the resources, e.g., "pads", "afi", "cs", etc., to the DT device. I think this should be solved by having the DT core request all resources of all devices in the DT (it does not do that today). If a driver claims the device, it can request the resources it uses. For example: # cat /proc/iomem 00000000-00000fff : /pcie-controller@00003000 00000000-00000fff : /pcie-controller@00003000/pci@1,0 00003000-000037ff : /pcie-controller@00003000 00003000-000037ff : pads 00003800-000039ff : /pcie-controller@00003000 00003800-000039ff : afi 10000000-1fffffff : /pcie-controller@00003000 10000000-1fffffff : cs ... Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
The switch is the only statement in the resource_list_for_each_entry() loop, so remove unnecessary cases and "continue" statements in the switch. Inline rcar_pcie_release_of_pci_ranges(), which is only called once. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Use devm_request_pci_bus_resources() to request host bridge window resources instead of doing it by hand in the driver. No functional change intended. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Request host bridge window resources so they appear in ioport_resource and iomem_resource and are reflected in /proc/ioports and /proc/iomem. Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Previously we added a dummy I/O port region even though the R-Car controller doesn't support PCI port I/O. This resulted in bogus root bus resources like this: pci_bus 0000:00: root bus resource [io 0xee080000-0xee0810ff] pci_bus 0000:00: root bus resource [mem 0xee080000-0xee0810ff] Drop the unused dummy I/O port region and set struct hw_pci.io_optional so the ARM PCI code doesn't add a default one for us. Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 24 6月, 2016 1 次提交
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由 Lorenzo Pieralisi 提交于
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(), but when PCI_PROBE_ONLY is set, we treat those resources as immutable and don't call pci_bus_assign_resources(), so the resources aren't put in the resource tree. When the resources aren't in the tree, they don't show up in /proc/iomem, we can't detect conflicts, and we need special cases elsewhere for PCI_PROBE_ONLY or resources without a parent pointer. Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case. If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix the conflicts. Previously we didn't notice the conflicts, but now we will, which may expose new failures. [bhelgaas: changelog, summarize comment] Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Acked-by: NWill Deacon <will.deacon@arm.com> CC: Arnd Bergmann <arnd@arndb.de> CC: David Daney <david.daney@cavium.com>
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