drm/xe: Move vma rebinding to the drm_exec locking loop

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Rebinding might allocate page-table bos, causing evictions.
To support blocking locking during these evictions,
perform the rebinding in the drm_exec locking loop.

Also Reserve fence slots where actually needed rather than trying to
predict how many fence slots will be needed over a complete
wound-wait transaction.

v2:
- Remove a leftover call to xe_vm_rebind() (Matt Brost)
- Add a helper function xe_vm_validate_rebind() (Matt Brost)
v3:
- Add comments and squash with previous patch (Matt Brost)

Fixes: 24f947d58f ("drm/xe: Use DRM GPUVM helpers for external- and evicted objects")
Fixes: 29f424eb87 ("drm/xe/exec: move fence reservation")
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240327091136.3271-5-thomas.hellstrom@linux.intel.com

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This commit is contained in:

Thomas Hellström 2024-03-27 10:11:36 +01:00

parent 0453f17575

commit 7ee7dd6f30

5 changed files with 83 additions and 75 deletions

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52

drivers/gpu/drm/xe/xe_exec.c

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3

drivers/gpu/drm/xe/xe_gt_pagefault.c

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14

drivers/gpu/drm/xe/xe_pt.c

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83

drivers/gpu/drm/xe/xe_vm.c

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6

drivers/gpu/drm/xe/xe_vm.h

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