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Is there a bugzilla this fixes? If so, can you add a link?</div>
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Alex<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Francis, David <David.Francis@amd.com><br>
<b>Sent:</b> Thursday, June 20, 2019 9:43 AM<br>
<b>To:</b> Kazlauskas, Nicholas; amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Wentland, Harry<br>
<b>Subject:</b> Re: [PATCH] Revert "drm/amd/display: Enable fast plane updates when state->allow_modeset = true"</font>
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<p style="margin-top:0; margin-bottom:0">Reviewed-by: David Francis <david.francis@amd.com></p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Nicholas Kazlauskas <nicholas.kazlauskas@amd.com><br>
<b>Sent:</b> June 20, 2019 8:34:03 AM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Francis, David; Wentland, Harry; Kazlauskas, Nicholas<br>
<b>Subject:</b> [PATCH] Revert "drm/amd/display: Enable fast plane updates when state->allow_modeset = true"</font>
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<div class="x_PlainText">This reverts commit ebc8c6f18322ad54275997a888ca1731d74b711f.<br>
<br>
There are still missing corner cases with cursor interaction and these<br>
fast plane updates on Picasso and Raven2 leading to endless PSTATE<br>
warnings for typical desktop usage depending on the userspace.<br>
<br>
This change should be reverted until these issues have been resolved.<br>
<br>
Cc: David Francis <david.francis@amd.com><br>
Cc: Harry Wentland <harry.wentland@amd.com><br>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com><br>
---<br>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++++++++<br>
1 file changed, 8 insertions(+)<br>
<br>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
index 33dcd4187157..d6acbcfa570c 100644<br>
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c<br>
@@ -6471,6 +6471,14 @@ static bool should_reset_plane(struct drm_atomic_state *state,<br>
struct drm_crtc_state *new_crtc_state;<br>
int i;<br>
<br>
+ /*<br>
+ * TODO: Remove this hack once the checks below are sufficient<br>
+ * enough to determine when we need to reset all the planes on<br>
+ * the stream.<br>
+ */<br>
+ if (state->allow_modeset)<br>
+ return true;<br>
+<br>
/* Exit early if we know that we're adding or removing the plane. */<br>
if (old_plane_state->crtc != new_plane_state->crtc)<br>
return true;<br>
-- <br>
2.17.1<br>
<br>
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