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drm/amd/display: Fix when disabling secure_display

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[Why]
Fix problems when we disable secure_display.

[How]
- Reset secure display context after disabled
- A secure_display_context is dedicate to a crtc, so we set the crtc for
it when we create the context.

Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alan Liu 2022-11-24 20:24:15 +08:00 • committed by Alex Deucher
parent 9dc5b360cc
commit b8ff7e08ba
3 changed files with 20 additions and 15 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View file

@ -1642,7 +1642,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
}
#endif
#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
adev->dm.secure_display_ctxs = amdgpu_dm_crtc_secure_display_create_contexts(adev->dm.dc->caps.max_links);
adev->dm.secure_display_ctxs = amdgpu_dm_crtc_secure_display_create_contexts(adev);
#endif
if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
init_completion(&adev->dm.dmub_aux_transfer_done);

28
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
View file

@ -217,14 +217,12 @@ int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
/* Disable secure_display if it was enabled */
if (!enable) {
if (adev->dm.secure_display_ctxs) {
for (i = 0; i < adev->mode_info.num_crtc; i++) {
if (adev->dm.secure_display_ctxs[i].crtc == crtc) {
/* stop ROI update on this crtc */
flush_work(&adev->dm.secure_display_ctxs[i].notify_ta_work);
dc_stream_forward_crc_window(stream_state, NULL, true);
adev->dm.secure_display_ctxs[i].crtc = NULL;
}
for (i = 0; i < adev->dm.dc->caps.max_links; i++) {
if (adev->dm.secure_display_ctxs[i].crtc == crtc) {
/* stop ROI update on this crtc */
flush_work(&adev->dm.secure_display_ctxs[i].notify_ta_work);
flush_work(&adev->dm.secure_display_ctxs[i].forward_roi_work);
dc_stream_forward_crc_window(stream_state, NULL, true);
}
}
}
@ -499,7 +497,12 @@ void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc)
}
secure_display_ctx = &adev->dm.secure_display_ctxs[acrtc->crtc_id];
secure_display_ctx->crtc = crtc;
if (WARN_ON(secure_display_ctx->crtc != crtc)) {
/* We have set the crtc when creating secure_display_context,
* don't expect it to be changed here.
*/
secure_display_ctx->crtc = crtc;
}
if (acrtc->dm_irq_params.window_param.update_win) {
/* prepare work for dmub to update ROI */
@ -530,19 +533,20 @@ cleanup:
}
struct secure_display_context *
amdgpu_dm_crtc_secure_display_create_contexts(int num_crtc)
amdgpu_dm_crtc_secure_display_create_contexts(struct amdgpu_device *adev)
{
struct secure_display_context *secure_display_ctxs = NULL;
int i;
secure_display_ctxs = kcalloc(num_crtc, sizeof(struct secure_display_context), GFP_KERNEL);
secure_display_ctxs = kcalloc(AMDGPU_MAX_CRTCS, sizeof(struct secure_display_context), GFP_KERNEL);
if (!secure_display_ctxs)
return NULL;
for (i = 0; i < num_crtc; i++) {
for (i = 0; i < adev->dm.dc->caps.max_links; i++) {
INIT_WORK(&secure_display_ctxs[i].forward_roi_work, amdgpu_dm_forward_crc_window);
INIT_WORK(&secure_display_ctxs[i].notify_ta_work, amdgpu_dm_crtc_notify_ta_to_read);
secure_display_ctxs[i].crtc = &adev->mode_info.crtcs[i]->base;
}
return secure_display_ctxs;

5
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h
View file

@ -54,7 +54,7 @@ struct crc_window_param {
};
struct secure_display_context {
/* work to notify PSP TA to transmit CRC over I2C */
/* work to notify PSP TA*/
struct work_struct notify_ta_work;
/* work to forward ROI to dmcu/dmub */
@ -95,7 +95,8 @@ void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc);
#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
bool amdgpu_dm_crc_window_is_activated(struct drm_crtc *crtc);
void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc);
struct secure_display_context *amdgpu_dm_crtc_secure_display_create_contexts(int num_crtc);
struct secure_display_context *amdgpu_dm_crtc_secure_display_create_contexts(
struct amdgpu_device *adev);
#else
#define amdgpu_dm_crc_window_is_activated(x)
#define amdgpu_dm_crtc_handle_crc_window_irq(x)