lkml.org 
[lkml]   [2022]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/4] dma-buf: To check enable signaling before signaled
Date
TTM, GEM, DRM or the core DMA-buf framework are needs
to enable software signaling before the fence is signaled.
The core DMA-buf framework software can forget to call
enable_signaling before the fence is signaled. It means
framework code can forget to call dma_fence_enable_sw_signaling()
before calling dma_fence_is_signaled(). To avoid this scenario
on debug kernel, check the DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT bit
status before checking the MA_FENCE_FLAG_SIGNALED_BIT bit status
to confirm that software signaling is enabled.


Arvind Yadav (4):
[PATCH v2 1/4] drm/sched: Enable signaling for finished fence
[PATCH v2 2/4] dma-buf: enable signaling for the stub fence on debug
[PATCH v2 3/4] dma-buf: enable signaling for selftest fence on debug
[PATCH v2 4/4] dma-buf: Check status of enable-signaling bit on debug

drivers/dma-buf/dma-fence.c | 7 ++++
drivers/dma-buf/st-dma-fence-chain.c | 8 +++++
drivers/dma-buf/st-dma-fence-unwrap.c | 44 ++++++++++++++++++++++++++
drivers/dma-buf/st-dma-fence.c | 25 ++++++++++++++-
drivers/dma-buf/st-dma-resv.c | 20 ++++++++++++
drivers/gpu/drm/scheduler/sched_main.c | 2 ++
include/linux/dma-fence.h | 5 +++
7 files changed, 110 insertions(+), 1 deletion(-)

--
2.25.1

\
 
 \ /
  Last update: 2022-09-05 18:38    [W:0.099 / U:0.804 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site