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096339ab84
linux/arch/powerpc
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Gaurav Batra 096339ab84 powerpc/iommu: DMA address offset is incorrectly calculated with 2MB TCEs 
When DMA window is backed by 2MB TCEs, the DMA address for the mapped
page should be the offset of the page relative to the 2MB TCE. The code
was incorrectly setting the DMA address to the beginning of the TCE
range.

Mellanox driver is reporting timeout trying to ENABLE_HCA for an SR-IOV
ethernet port, when DMA window is backed by 2MB TCEs.

Fixes: 3872731187 ("powerps/pseries/dma: Add support for 2M IOMMU page size")
Cc: stable@vger.kernel.org # v5.16+
Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com>
Reviewed-by: Greg Joyce <gjoyce@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230504175913.83844-1-gbatra@linux.vnet.ibm.com
2023-05-17 00:53:06 +10:00
..
boot powerpc/boot: Disable power10 features after BOOTAFLAGS assignment 2023-05-12 16:20:18 +10:00
configs powerpc updates for 6.4 2023-04-28 16:24:32 -07:00
crypto powerpc/crypto: Fix aes-gcm-p10 build when VSX=n 2023-05-15 22:48:53 +10:00
include powerpc/iommu: Remove iommu_del_device() 2023-05-17 00:51:06 +10:00
kernel powerpc/iommu: DMA address offset is incorrectly calculated with 2MB TCEs 2023-05-17 00:53:06 +10:00
kexec powerpc/kexec_file: print error string on usable memory property update failure 2023-02-15 23:14:06 +11:00
kvm s390: 2023-05-01 12:06:20 -07:00
lib powerpc/64: vmlinux support building with PCREL addresing 2023-04-20 12:59:21 +10:00
math-emu
mm powerpc/64s/radix: Fix soft dirty tracking 2023-05-11 22:17:38 +10:00
net powerpc/bpf: populate extable entries only during the last pass 2023-05-15 15:40:31 +10:00
perf powerpc/perf: Properly detect mpc7450 family 2023-03-30 23:35:43 +11:00
platforms powerpc/iommu: Remove iommu_del_device() 2023-05-17 00:51:06 +10:00
purgatory powerpc/kcsan: Add exclusions from instrumentation 2023-02-10 22:19:56 +11:00
sysdev powerpc updates for 6.4 2023-04-28 16:24:32 -07:00
tools powerpc: Move script to check relocations at compile time in scripts/ 2023-04-19 07:46:31 -07:00
xmon powerpc/64: vmlinux support building with PCREL addresing 2023-04-20 12:59:21 +10:00
Kbuild
Kconfig dma-mapping updates for Linux 6.4 2023-04-29 10:29:57 -07:00
Kconfig.debug
Makefile powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest 2023-04-21 16:16:25 +10:00
Makefile.postlink kbuild: remove --include-dir MAKEFLAG from top Makefile 2023-02-05 18:51:22 +09:00