39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Min He <min.he@intel.com>
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Date: Fri, 14 Dec 2018 04:16:29 +0000
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Subject: [PATCH] drm/i915/gvt: emulate correct state of SKL_FUSE_STATUS on BXT
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When gvt-g guest boots up on BXT with virtual display monitors, it will
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report some WARN_ON messages in gen9_wait_for_power_well_fuses().
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It's because GVT-g doesn't emulate correct status of SKL_FUSE_STATUS on
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BXT platform. This patch is to fix the issue mentioned above.
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Tracked-On: projectacrn/acrn-hypervisor/issues/2090
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Signed-off-by: Min He <min.he@intel.com>
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Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
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Tracked-On: PKT-1617
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---
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drivers/gpu/drm/i915/gvt/display.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
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index 7398d6560cf5..5cbba429f4da 100644
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--- a/drivers/gpu/drm/i915/gvt/display.c
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+++ b/drivers/gpu/drm/i915/gvt/display.c
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@@ -191,6 +191,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
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BXT_DE_PORT_HP_DDIC;
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}
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+ vgpu_vreg_t(vgpu, SKL_FUSE_STATUS) |=
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+ SKL_FUSE_DOWNLOAD_STATUS |
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+ SKL_FUSE_PG_DIST_STATUS(SKL_PG0) |
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+ SKL_FUSE_PG_DIST_STATUS(SKL_PG1) |
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+ SKL_FUSE_PG_DIST_STATUS(SKL_PG2);
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+
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return;
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}
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--
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https://clearlinux.org
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