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drm/amd/display: Set irq state only on existing crtcs

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Because AMDGPU_CRTC_IRQ_VLINE1 = 6, it expected 6 more crtcs to be
programed with disabled irq state in amdgpu_irq_disable_all. That caused errors and accessed
the wrong memory location.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mikita Lipski 2018-01-18 14:53:57 -05:00 committed by Alex Deucher
parent 4a2df0d1f2
commit 43b9d27360
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
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@ -683,10 +683,8 @@ static const struct amdgpu_irq_src_funcs dm_hpd_irq_funcs = {
void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev)
{
if (adev->mode_info.num_crtc > 0)
adev->crtc_irq.num_types = AMDGPU_CRTC_IRQ_VLINE1 + adev->mode_info.num_crtc;
else
adev->crtc_irq.num_types = 0;
adev->crtc_irq.num_types = adev->mode_info.num_crtc;
adev->crtc_irq.funcs = &dm_crtc_irq_funcs;
adev->pageflip_irq.num_types = adev->mode_info.num_crtc;