kernel/linux.git - Linux kernel stable tree (mirror)

Age	Commit message (Collapse)	Author	Files	Lines
2023-09-27	accel/ivpu/40xx: Ensure clock resource ownership Ack before Power-Up	Karol Wachowski	1	-0/+2
	We need to wait for the CLOCK_RESOURCE_OWN_ACK bit to be set after configuring the workpoint. This step ensures that the VPU microcontroller clock is actively toggling and ready for operation. Previously, we relied solely on the READY bit in the VPU_STATUS register, which indicated the completion of the workpoint download. However, this approach was insufficient, as the READY bit could be set while the device was still running on a sideband clock until the PLL locked. To guarantee that the PLL is locked and the device is running on the main clock source, we now wait for the CLOCK_RESOURCE_OWN_ACK before proceeding with the remainder of the power-up sequence. Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4") Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-4-stanislaw.gruszka@linux.intel.com
2023-08-09	accel/ivpu: Add initial support for VPU 4	Stanislaw Gruszka	1	-0/+267
	Add support VPU 4 - new generation of VPU IP with various hardware design improvements. From driver point of view, it differs in register set, initialization process and MMU memory ranges. Co-developed-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com> Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com> Co-developed-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com> Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com> Co-developed-by: Karol Wachowski <karol.wachowski@linux.intel.com> Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com> Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230731161258.2987564-7-stanislaw.gruszka@linux.intel.com