diff options
| author | Zhangfei Gao <zhangfei.gao@linaro.org> | 2021-07-13 10:54:36 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-08-31 15:06:04 -0500 |
| commit | 8304a3a199eeb3e6434fc855ac072e7374d0c490 (patch) | |
| tree | 92abc8a0c9c762017ea1810ab675d956c04fb6f8 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 8c09e896cef8d908dd9a20a9f2a5c3fcb9799de3 (diff) | |
PCI: Set dma-can-stall for HiSilicon chips
HiSilicon KunPeng920 and KunPeng930 have devices that appear as PCI but are
actually on the AMBA bus. These fake PCI devices can support SVA via the
SMMU stall feature.
DT systems can indicate this in the device tree, but ACPI systems don't
have that mechanism, so add a "dma-can-stall" property manually for them.
[bhelgaas: add text from Robin as comment near quirk]
Link: https://lore.kernel.org/r/1626144876-11352-4-git-send-email-zhangfei.gao@linaro.org
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions