[Bug 103800] CNL unable to handle kernel paging request at 00000000fffffffc

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103800

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
try
diff --git a/drivers/gpu/drm/i915/intel_lrc.c
b/drivers/gpu/drm/i915/intel_lrc.c
index fc098e6cca23..75a048eab127 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -154,8 +154,7 @@
 #define GEN8_CTX_STATUS_LITE_RESTORE   (1 << 15)

 #define GEN8_CTX_STATUS_COMPLETED_MASK \
-        (GEN8_CTX_STATUS_ACTIVE_IDLE | \
-         GEN8_CTX_STATUS_PREEMPTED | \
+        (GEN8_CTX_STATUS_PREEMPTED | \
          GEN8_CTX_STATUS_ELEMENT_SWITCH)

 #define CTX_LRI_HEADER_0               0x01
@@ -842,8 +841,6 @@ static void execlists_submission_tasklet(unsigned long
data)
                        GEM_TRACE("%s csb[%dd]: status=0x%08x:0x%08x\n",
                                  engine->name, head,
                                  status, buf[2*head + 1]);
-                       if (!(status & GEN8_CTX_STATUS_COMPLETED_MASK))
-                               continue;

                        if (status & GEN8_CTX_STATUS_ACTIVE_IDLE &&
                            buf[2*head + 1] == PREEMPT_ID) {
@@ -862,6 +859,9 @@ static void execlists_submission_tasklet(unsigned long
data)
                                                EXECLISTS_ACTIVE_PREEMPT))
                                continue;

+                       if (!(status & GEN8_CTX_STATUS_COMPLETED_MASK))
+                               continue;
+
                        GEM_BUG_ON(!execlists_is_active(execlists,
                                                       
EXECLISTS_ACTIVE_USER));

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