[PATCH 0/2] drm/msm: Get rid of fence allocation in job_run()

From: Rob Clark
Date: Sat Mar 11 2023 - 12:36:31 EST


From: Rob Clark <robdclark@xxxxxxxxxxxx>

Inspired by https://lore.kernel.org/dri-devel/20200604081224.863494-10-daniel.vetter@xxxxxxxx/
it seemed like a good idea to get rid of memory allocation in job_run()
by embedding the hw dma_fence in the job/submit struct.

Applies on top of https://patchwork.freedesktop.org/series/93035/ but I
can re-work it to swap the order. I think the first patch would be
useful to amdgpu and perhaps anyone else embedding the hw_fence in the
struct containing drm_sched_job.

Rob Clark (2):
dma-buf/dma-fence: Add dma_fence_init_noref()
drm/msm: Embed the hw_fence in msm_gem_submit

drivers/dma-buf/dma-fence.c | 43 +++++++++++++++++++-------
drivers/gpu/drm/msm/msm_fence.c | 45 +++++++++++-----------------
drivers/gpu/drm/msm/msm_fence.h | 2 +-
drivers/gpu/drm/msm/msm_gem.h | 10 +++----
drivers/gpu/drm/msm/msm_gem_submit.c | 8 ++---
drivers/gpu/drm/msm/msm_gpu.c | 4 +--
drivers/gpu/drm/msm/msm_ringbuffer.c | 4 +--
include/linux/dma-fence.h | 2 ++
8 files changed, 66 insertions(+), 52 deletions(-)

--
2.39.2