drm/amd/display: Improvements in secure display
[Why] - Need error message when failing to allocating secure_display_ctx. - Need to check if secure display context in psp is initialized or not before using it. [How] - Add error message when memory allocation fail. - Add check before accessing psp secure display context. Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alan Liu <HaoPing.Liu@amd.com> Reviewed-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -1643,6 +1643,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
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#endif
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#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
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adev->dm.secure_display_ctxs = amdgpu_dm_crtc_secure_display_create_contexts(adev);
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if (!adev->dm.secure_display_ctxs) {
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DRM_ERROR("amdgpu: failed to initialize secure_display_ctxs.\n");
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}
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#endif
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if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
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init_completion(&adev->dm.dmub_aux_transfer_done);
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@ -117,6 +117,12 @@ static void amdgpu_dm_crtc_notify_ta_to_read(struct work_struct *work)
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}
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psp = &drm_to_adev(crtc->dev)->psp;
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if (!psp->securedisplay_context.context.initialized) {
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DRM_DEBUG_DRIVER("Secure Display fails to notify PSP TA\n");
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return;
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}
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stream = to_amdgpu_crtc(crtc)->dm_irq_params.stream;
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phy_inst = stream->link->link_enc_hw_inst;
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