Searched hist:"3 d8b2727" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/accel/ivpu/ |
| H A D | ivpu_drv.h | 3d8b2727 Thu Mar 23 07:55:01 CDT 2023 Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> accel/ivpu: Disable buttress on device removal
Use pci_set_power_state() to disable buttress when device is removed.
This is workaround of hardware bug that hangs the system.
Additionally not disabling buttress prevents CPU enter deeper Pkg-C
states when the driver is unloaded or fail to probe.
Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU")
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230323125504.2586442-6-stanislaw.gruszka@linux.intel.com
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| H A D | ivpu_drv.c | 3d8b2727 Thu Mar 23 07:55:01 CDT 2023 Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> accel/ivpu: Disable buttress on device removal
Use pci_set_power_state() to disable buttress when device is removed.
This is workaround of hardware bug that hangs the system.
Additionally not disabling buttress prevents CPU enter deeper Pkg-C
states when the driver is unloaded or fail to probe.
Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU")
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230323125504.2586442-6-stanislaw.gruszka@linux.intel.com
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