Hello,
Here are 2 fixes and one improvement for the page fault handling. Those
bugs were found while working on indirect draw supports which requires
the allocation of a big heap buffer for varyings, and the vertex/tiler
shaders seem to have access pattern that trigger those issues. I
remember discussing the first issue with Steve or Robin a while back,
but we never hit it before (now we do :)).
The last patch is a perf improvement: no need to re-enable hardware
interrupts if we know the threaded irq handler will be woken up right
away.
Regards,
Boris
Changes in v2:
* Rework the MMU irq handling loop to avoid a goto
Boris Brezillon (3):
drm/panfrost: Clear MMU irqs before handling the fault
drm/panfrost: Don't try to map pages that are already mapped
drm/panfrost: Stay in the threaded MMU IRQ handler until we've handled
all IRQs
drivers/gpu/drm/panfrost/panfrost_mmu.c | 39 +++++++++++++++----------
1 file changed, 24 insertions(+), 15 deletions(-)
--
2.26.2
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