kernel - saturneric's kernel source tree

	Commit message (Collapse)	Author	Age	Files	Lines
*	dma-fence: Use a flag for 64-bit seqnos	Tvrtko Ursulin	2025-06-03	1	-3/+2
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	With the goal of reducing the need for drivers to touch (and dereference) fence->ops, we move the 64-bit seqnos flag from struct dma_fence_ops to the fence->flags. Drivers which were setting this flag are changed to use new dma_fence_init64() instead of dma_fence_init(). v2: * Streamlined init and added kerneldoc. * Rebase for amdgpu userq which landed since. Signed-off-by: Tvrtko Ursulin <[email protected]> Reviewed-by: Christian König <[email protected]> # v1 Signed-off-by: Tvrtko Ursulin <[email protected]> Link: https://lore.kernel.org/r/[email protected]
*	drm/amdgpu: implement TLB flush fence	Christian Koenig	2024-03-20	1	-0/+112
	The problem is that when (for example) 4k pages are replaced with a single 2M page we need to wait for change to be flushed out by invalidating the TLB before the PT can be freed. Solve this by moving the TLB flush into a DMA-fence object which can be used to delay the freeing of the PT BOs until it is signaled. V2: (Shashank) - rebase - set dma_fence_error only in case of error - add tlb_flush fence only when PT/PD BO is locked (Felix) - use vm->pasid when f is NULL (Mukul) V4: - add a wait for (f->dependency) in tlb_fence_work (Christian) - move the misplaced fence_create call to the end (Philip) V5: - free the f->dependency properly V6: (Shashank) - light code movement, moved all the clean-up in previous patch - introduce params.needs_flush and its usage in this patch - rebase without TLB HW sequence patch V7: - Keep the vm->last_update_fence and tlb_cb code until we can fix the HW sequencing (Christian) - Move all the tlb_fence related code in a separate function so that its easier to read and review V9: Addressed review comments from Christian - start PT update only when we have callback memory allocated V10: - handle device unlock in OOM case (Christian, Mukul) - added Christian's R-B Cc: Christian Koenig <[email protected]> Cc: Felix Kuehling <[email protected]> Cc: Rajneesh Bhardwaj <[email protected]> Cc: Alex Deucher <[email protected]> Acked-by: Felix Kuehling <[email protected]> Acked-by: Rajneesh Bhardwaj <[email protected]> Tested-by: Rajneesh Bhardwaj <[email protected]> Reviewed-by: Shashank Sharma <[email protected]> Reviewed-by: Christian Koenig <[email protected]> Signed-off-by: Christian Koenig <[email protected]> Signed-off-by: Shashank Sharma <[email protected]> Signed-off-by: Alex Deucher <[email protected]>