From 1d054c9b8457b56a651109fac21f56f46ccd46b2 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Tue, 9 Nov 2021 10:11:02 -0800 Subject: drm/msm: Drop priv->lastctx cur_ctx_seqno already does the same thing, but handles the edge cases where a refcnt'd context can live after lastclose. So let's not have two ways to do the same thing. Signed-off-by: Rob Clark Reviewed-by: Akhil P Oommen Link: https://lore.kernel.org/r/20211109181117.591148-3-robdclark@gmail.com Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_gpu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/gpu/drm/msm/msm_gpu.h') diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index 48ea2de911f1..f33f2c6aab47 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -144,6 +144,17 @@ struct msm_gpu { struct msm_ringbuffer *rb[MSM_GPU_MAX_RINGS]; int nr_rings; + /** + * cur_ctx_seqno: + * + * The ctx->seqno value of the last context to submit rendering, + * and the one with current pgtables installed (for generations + * that support per-context pgtables). Tracked by seqno rather + * than pointer value to avoid dangling pointers, and cases where + * a ctx can be freed and a new one created with the same address. + */ + int cur_ctx_seqno; + /* * List of GEM active objects on this gpu. Protected by * msm_drm_private::mm_lock -- cgit v1.2.3