Karol Wachowski 645d694559 accel/ivpu: Use cached buffers for FW loading ... Create buffers with cache coherency on the CPU side (write-back) while disabling snooping on the VPU side. These buffers require an explicit cache flush after each CPU-side modification. Configuring pages as write-combined may introduce significant delays, potentially taking hundreds of milliseconds for 64 MB buffers. Added internal DRM_IVPU_BO_NOSNOOP mask which disables snooping on the VPU side. Allocate FW runtime memory buffer (64 MB) as cached with snooping-disabled. This fixes random long FW loading times and boot params memory corruption on warmboot (due to missed wmb). Fixes: 02d5b0aacd ("accel/ivpu: Implement firmware parsing and booting") 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/20230926120943.GD846747@linux.intel.com		2023-09-27 07:40:43 +02:00
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habanalabs
ivpu	accel/ivpu: Use cached buffers for FW loading	2023-09-27 07:40:43 +02:00
qaic	Linux 6.5-rc7	2023-08-24 07:26:06 +10:00
drm_accel.c
Kconfig
Makefile