From d6c0511300dcff19969844495ba293c4efb50b42 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 3 Oct 2017 21:34:47 +0100
Subject: [PATCH] drm/i915/execlists: Distinguish the incomplete context notifies
Mime-version: 1.0
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8bit
Git-commit: d6c0511300dcff19969844495ba293c4efb50b42
Patch-mainline: v4.15-rc1
References: FATE#322643 bsc#1055900
Let the listener know that the context we just scheduled out was not
complete, and will be scheduled back in at a later point.
V2: Handle CONTEXT_STATUS_PREEMPTED in gvt by aliasing it to
CONTEXT_STATUS_OUT for the moment, gvt can expand upon the difference
later.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Zhenyu Wang" <zhenyuw@linux.intel.com>
Cc: "Wang, Zhi A" <zhi.a.wang@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171003203453.15692-3-chris@chris-wilson.co.uk
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/gvt/scheduler.c | 1 +
drivers/gpu/drm/i915/intel_lrc.c | 2 +-
drivers/gpu/drm/i915/intel_lrc.h | 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -174,6 +174,7 @@ static int shadow_context_status_change(
atomic_set(&workload->shadow_ctx_active, 1);
break;
case INTEL_CONTEXT_SCHEDULE_OUT:
+ case INTEL_CONTEXT_SCHEDULE_PREEMPTED:
atomic_set(&workload->shadow_ctx_active, 0);
break;
default:
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -617,7 +617,7 @@ execlist_cancel_port_requests(struct int
while (num_ports-- && port_isset(port)) {
struct drm_i915_gem_request *rq = port_request(port);
- execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT);
+ execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_PREEMPTED);
i915_gem_request_put(rq);
memset(port, 0, sizeof(*port));
--- a/drivers/gpu/drm/i915/intel_lrc.h
+++ b/drivers/gpu/drm/i915/intel_lrc.h
@@ -61,6 +61,7 @@
enum {
INTEL_CONTEXT_SCHEDULE_IN = 0,
INTEL_CONTEXT_SCHEDULE_OUT,
+ INTEL_CONTEXT_SCHEDULE_PREEMPTED,
};
/* Logical Rings */