diff options
| author | Neil Armstrong <neil.armstrong@linaro.org> | 2024-10-11 16:38:26 +0200 |
|---|---|---|
| committer | Mattijs Korpershoek <mkorpershoek@baylibre.com> | 2024-10-15 11:03:57 +0200 |
| commit | 3e47302dd71267b85e5ec65c5b6d881c23cce6cb (patch) | |
| tree | 9985cd4869923f60cd706c2f36eced6516011144 /drivers/timer/tsc_timer.c | |
| parent | 502a50ab1f7e32e3e90056597e8ce6a0931789ba (diff) | |
usb: dwc3: invalidate dcache on buffer used in interrupt handling
On Qualcomm systems, the setup buffer and even buffers are in
a bad state at interrupt handling, so invalidate the dcache lines
for the setup_buf and event buffer to make sure we read correct
data written by the hardware.
This fixes the following error:
dwc3-generic-peripheral usb@a600000: UNKNOWN IRQ type -1
dwc3-generic-peripheral usb@a600000: UNKNOWN IRQ type 4673109
and invalid situation in dwc3_gadget_giveback() because setup_buf content
is read at 0s and leads to fatal crash fixed by [1].
[1] https://lore.kernel.org/all/20240528-topic-sm8x50-dwc3-gadget-crash-fix-v1-1-58434ab4b3d3@linaro.org/
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20241011-u-boot-dwc3-gadget-dcache-fixup-v4-3-5f3498d8035b@linaro.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Diffstat (limited to 'drivers/timer/tsc_timer.c')
0 files changed, 0 insertions, 0 deletions