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linux/drivers/pci/controller
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Jianjun Wang 40d9d2179f PCI: mediatek-gen3: Fix translation window size calculation 
[ Upstream commit 9ccc1318cf ]

When using the fls() helper, the translation table should be a power of
two; otherwise, the resulting value will not be correct.

For example, given fls(0x3e00000) - 1 = 25, the PCIe translation window
size will be set to 0x2000000 instead of the expected size 0x3e00000.

Fix the translation window by splitting the MMIO space into multiple tables
if its size is not a power of two.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231023081423.18559-1-jianjun.wang@mediatek.com
Fixes: d3bf75b579 ("PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192")
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-01-25 15:45:26 -08:00
..
cadence Merge branch 'pci/field-get' 2023-10-28 13:31:05 -05:00
dwc PCI: keystone: Fix race condition when initializing PHYs 2024-01-25 15:45:25 -08:00
mobiveil PCI: Use PCI_HEADER_TYPE_* instead of literals 2023-10-03 11:55:59 -05:00
Kconfig PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver 2023-10-26 15:02:02 +00:00
Makefile PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver 2023-10-26 15:02:02 +00:00
pci-aardvark.c PCI: aardvark: Convert to platform remove callback returning void 2023-06-24 14:10:09 +00:00
pci-ftpci100.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pci-host-common.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pci-host-generic.c PCI: Unify ECAM constants in native PCI Express drivers 2020-12-10 14:55:49 -06:00
pci-hyperv-intf.c PCI: hv: Add a Hyper-V PCI interface driver for software backchannel interface 2019-08-22 00:25:12 -07:00
pci-hyperv.c PCI: hv: Annotate struct hv_dr_state with __counted_by 2023-10-14 20:02:55 +00:00
pci-ixp4xx.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pci-loongson.c PCI: loongson: Limit MRRS to 256 2023-12-08 10:48:37 -06:00
pci-mvebu.c PCI: mvebu: Use FIELD_PREP() with Link Width 2023-10-10 15:00:52 -05:00
pci-rcar-gen2.c PCI: rcar-gen2: Use devm_platform_get_and_ioremap_resource() 2023-07-13 18:12:35 +00:00
pci-tegra.c PCI: tegra: Convert to platform remove callback returning void 2023-06-24 14:14:02 +00:00
pci-thunder-ecam.c PCI: thunder: Drop error data fabrication when config read fails 2021-11-18 13:39:32 -06:00
pci-thunder-pem.c PCI: thunder: Drop error data fabrication when config read fails 2021-11-18 13:39:32 -06:00
pci-v3-semi.c Merge branch 'pci/misc' 2023-08-29 11:03:57 -05:00
pci-versatile.c PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules 2023-02-17 08:47:58 -06:00
pci-xgene-msi.c PCI: xgene-msi: Use devm_platform_get_and_ioremap_resource() 2023-07-13 18:12:36 +00:00
pci-xgene.c PCI: xgene: Do PCI error check on own line & keep return value 2023-10-10 16:40:18 -05:00
pcie-altera-msi.c PCI: altera-msi: Convert to platform remove callback returning void 2023-06-24 14:10:47 +00:00
pcie-altera.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pcie-apple.c Merge branch 'pci/misc' 2023-08-29 11:03:57 -05:00
pcie-brcmstb.c PCI: brcmstb: Remove stale comment 2023-08-24 17:33:59 +02:00
pcie-hisi-error.c PCI: hisi-error: Convert to platform remove callback returning void 2023-06-24 14:12:13 +00:00
pcie-iproc-bcma.c PCI: Add defines for normal and subtractive PCI bridges 2022-02-17 15:29:35 -06:00
pcie-iproc-msi.c PCI: iproc: Use of_property_read_bool() for boolean properties 2023-07-13 18:09:24 +00:00
pcie-iproc-platform.c PCI: iproc: Convert to platform remove callback returning void 2023-06-24 14:12:36 +00:00
pcie-iproc.c PCI: Use PCI_HEADER_TYPE_* instead of literals 2023-10-03 11:55:59 -05:00
pcie-iproc.h PCI: iproc: Convert to platform remove callback returning void 2023-06-24 14:12:36 +00:00
pcie-mediatek-gen3.c PCI: mediatek-gen3: Fix translation window size calculation 2024-01-25 15:45:26 -08:00
pcie-mediatek.c PCI: mediatek: Clear interrupt status before dispatching handler 2024-01-25 15:45:17 -08:00
pcie-microchip-host.c Merge branch 'pci/controller/remove-void-cast' 2023-08-29 11:03:56 -05:00
pcie-mt7621.c PCI: mt7621: Convert to platform remove callback returning void 2023-06-24 14:13:16 +00:00
pcie-rcar-ep.c PCI: Use PCI_HEADER_TYPE_* instead of literals 2023-10-03 11:55:59 -05:00
pcie-rcar-host.c PCI: Use PCI_HEADER_TYPE_* instead of literals 2023-10-03 11:55:59 -05:00
pcie-rcar.c PCI: rcar: Fix calculating mask for PCIEPAMR register 2020-05-11 11:29:48 +01:00
pcie-rcar.h PCI: rcar: Avoid defines prefixed with CONFIG 2023-03-10 13:34:27 +01:00
pcie-rockchip-ep.c PCI: rockchip: Set address alignment for endpoint mode 2023-06-22 09:36:51 +02:00
pcie-rockchip-host.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pcie-rockchip.c PCI: Explicitly include correct DT includes 2023-07-18 14:33:17 -05:00
pcie-rockchip.h PCI: rockchip: Use 64-bit mask on MSI 64-bit PCI address 2023-07-13 18:25:44 +00:00
pcie-xilinx-common.h PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver 2023-10-26 15:02:02 +00:00
pcie-xilinx-cpm.c PCI: xilinx-cpm: Move IRQ definitions to a common header 2023-10-26 14:10:42 +00:00
pcie-xilinx-dma-pl.c PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain() 2024-01-25 15:45:25 -08:00
pcie-xilinx-nwl.c PCI: xilinx-nwl: Modify ECAM size to enable support for 256 buses 2023-10-26 11:57:03 +00:00
pcie-xilinx.c PCI: xilinx: Rename xilinx_pcie_port to xilinx_pcie 2022-01-03 15:05:28 -06:00
vmd.c PCI: vmd: Fix potential deadlock when enabling ASPM 2023-12-11 12:07:59 -06:00