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linux/drivers/pci
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Jianjun Wang 69f0bebe91 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 15:27:48 -08:00
..
controller PCI: mediatek-gen3: Fix translation window size calculation 2024-01-25 15:27:48 -08:00
endpoint PCI: epf-test: Fix DMA transfer completion detection 2023-07-23 13:49:36 +02:00
hotplug Revert "PCI: acpiphp: Reassign resources on bridge if necessary" 2023-12-20 17:00:20 +01:00
msi PCI/MSI: Correct 'can_mask' test in msi_add_msi_desc() 2022-08-26 10:47:54 -05:00
pcie Revert "PCI/ASPM: Remove pcie_aspm_pm_state_change()" 2024-01-10 17:10:20 +01:00
switch PCI: switchtec: Return -EFAULT for copy_to_user() errors 2023-03-10 09:33:31 +01:00
access.c PCI: Add locking to RMW PCI Express Capability Register accessors 2023-09-13 09:42:46 +02:00
ats.c PCI: Allow PASID on fake PCIe devices without TLP prefixes 2021-08-26 14:21:42 -05:00
bus.c PCI: s390: Fix use-after-free of PCI resources with per-function hotplug 2023-03-22 13:33:45 +01:00
doe.c PCI/DOE: Fix destroy_work_on_stack() race 2023-09-13 09:42:45 +02:00
ecam.c PCI: Dynamically map ECAM regions 2021-06-16 17:20:40 -05:00
host-bridge.c PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus 2021-09-02 17:59:58 +02:00
iov.c PCI/IOV: Enlarge virtfn sysfs name buffer 2023-03-10 09:33:31 +01:00
irq.c PCI: Check for alloc failure in pci_request_irq() 2022-12-31 13:32:33 +01:00
Kconfig cxl for 6.0 2022-08-10 11:07:26 -07:00
Makefile PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
mmap.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
of.c IOMMU Updates for Linux v5.19 2022-05-31 09:56:54 -07:00
p2pdma.c PCI/P2PDMA: Use for_each_pci_dev() helper 2022-09-19 13:44:38 -05:00
pci-acpi.c PCI/sysfs: Protect driver's D3cold preference from user space 2023-11-28 17:07:08 +00:00
pci-bridge-emul.c PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-bridge-emul.h PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-driver.c PCI: Unify delay handling for reset and resume 2023-03-10 09:34:30 +01:00
pci-label.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
pci-mid.c PCI: PM: Do not use pci_platform_pm_ops for Intel MID PM 2021-09-27 17:13:21 +02:00
pci-pf-stub.c PCI/IOV: Simplify pci-pf-stub with module_pci_driver() 2020-09-17 12:40:20 -05:00
pci-stub.c PCI: pci_stub: Set driver_managed_dma 2022-04-28 15:32:20 +02:00
pci-sysfs.c PCI/sysfs: Protect driver's D3cold preference from user space 2023-11-28 17:07:08 +00:00
pci.c Revert "PCI/ASPM: Remove pcie_aspm_pm_state_change()" 2024-01-10 17:10:20 +01:00
pci.h Revert "PCI/ASPM: Remove pcie_aspm_pm_state_change()" 2024-01-10 17:10:20 +01:00
probe.c PCI: Do error check on own line to split long "if" conditions 2023-11-28 17:07:00 +00:00
proc.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
quirks.c PCI: Add ACS quirk for more Zhaoxin Root Ports 2024-01-20 11:50:11 +01:00
remove.c PCI: Remove reset_fn field from pci_dev 2021-08-17 17:44:38 -05:00
rom.c PCI: Prefer 'unsigned int' over bare 'unsigned' 2021-10-27 13:41:22 -05:00
search.c PCI: Remove WARN_ON(in_interrupt()) 2021-02-10 16:46:29 -06:00
setup-bus.c PCI: Distribute available resources for root buses, too 2023-03-11 13:55:38 +01:00
setup-irq.c PCI: Tidy comments 2021-09-28 13:43:17 -05:00
setup-res.c PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge 2022-09-21 17:52:47 -05:00
slot.c PCI/sysfs: Use default_groups in kobj_type for slot attrs 2021-12-29 13:42:04 -06:00
syscall.c PCI: Return int from pciconfig_read() syscall 2021-08-03 16:55:48 -05:00
vc.c PCI: Fix kerneldoc warnings 2020-08-05 18:23:14 -05:00
vgaarb.c PCI/VGA: Replace full MIT license text with SPDX identifier 2022-03-09 18:31:34 -06:00
vpd.c PCI/VPD: Use pci_read_vpd_any() in pci_vpd_size() 2021-10-25 19:12:23 -05:00
xen-pcifront.c xen/pcifront: move xenstore config scanning into sub-function 2022-10-07 07:36:44 +02:00