From: Jack Xiao Date: Thu, 17 Jan 2019 07:47:36 +0000 (+0800) Subject: drm/amdgpu: add ib preemption status in amdgpu_job (v2) X-Git-Tag: v5.3-rc1~81^2~10^2~375 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d8780dc71d56acf734a5756cac8c7787eb6bec11;p=linux.git drm/amdgpu: add ib preemption status in amdgpu_job (v2) Add ib preemption status in amdgpu_job, so that ring level function can detect preemption and program for resuming it. v2: squash in fix to restore job->preamble_status back to status value (Jack) Acked-by: Alex Deucher Reviewed-by: Hawking Zhang Signed-off-by: Jack Xiao Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index c84c5b483e20..c13158be3c62 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -209,6 +209,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, skip_preamble = ring->current_ctx == fence_ctx; if (job && ring->funcs->emit_cntxcntl) { status |= job->preamble_status; + status |= job->preemption_status; amdgpu_ring_emit_cntxcntl(ring, status); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h index e1b46a6703de..51e62504c279 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h @@ -29,6 +29,8 @@ #define AMDGPU_PREAMBLE_IB_PRESENT_FIRST (1 << 1) /* bit set means context switch occured */ #define AMDGPU_HAVE_CTX_SWITCH (1 << 2) +/* bit set means IB is preempted */ +#define AMDGPU_IB_PREEMPTED (1 << 3) #define to_amdgpu_job(sched_job) \ container_of((sched_job), struct amdgpu_job, base) @@ -45,6 +47,7 @@ struct amdgpu_job { struct amdgpu_ib *ibs; struct dma_fence *fence; /* the hw fence */ uint32_t preamble_status; + uint32_t preemption_status; uint32_t num_ibs; void *owner; bool vm_needs_flush;