summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAlex Deucher <alexander.deucher@amd.com>2017-01-27 18:31:52 +0300
committerAlex Deucher <alexander.deucher@amd.com>2017-02-02 19:13:50 +0300
commit57bcd0a6364cd4eaa362d7ff1777e88ddf501602 (patch)
treee3157947adf0b224421bf5b6bfc4cf7dd2ae39ed
parent52b679f60e2a68af88411f12318675a2424a0e14 (diff)
downloadlinux-57bcd0a6364cd4eaa362d7ff1777e88ddf501602.tar.xz
drm/amdgpu/si: fix crash on headless asics
Missing check for crtcs present. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=193341 https://bugs.freedesktop.org/show_bug.cgi?id=99387 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index e2b0b1646f99..0635829b18cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -254,6 +254,9 @@ static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
}
WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
+ if (adev->mode_info.num_crtc)
+ amdgpu_display_set_vga_render_state(adev, false);
+
gmc_v6_0_mc_stop(adev, &save);
if (gmc_v6_0_wait_for_idle((void *)adev)) {
@@ -283,7 +286,6 @@ static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
dev_warn(adev->dev, "Wait for MC idle timedout !\n");
}
gmc_v6_0_mc_resume(adev, &save);
- amdgpu_display_set_vga_render_state(adev, false);
}
static int gmc_v6_0_mc_init(struct amdgpu_device *adev)