disp: msm: sde: reserve resources on trusted vm usecase start
The MEM & IRQ lend handlers signals the resources are lent from the primary VM. Reserve the SDE HW resources in trusted VM using the cont-splash path and setup the SDE & DRM software states. Set the DSI connector status to active for the handoff display during the start and disable it at the end of the session. Change-Id: I75b6df735eb5609cc521808aca0ddfb0b3993e84 Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
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@@ -1222,6 +1222,8 @@ int sde_kms_vm_trusted_post_commit(struct sde_kms *sde_kms,
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sde_hw_set_lutdma_sid(sde_kms->hw_sid, 0);
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sde_kms_vm_trusted_resource_deinit(sde_kms);
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if (vm_ops->vm_release)
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rc = vm_ops->vm_release(sde_kms);
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@@ -4130,6 +4132,82 @@ struct msm_kms *sde_kms_init(struct drm_device *dev)
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return &sde_kms->base;
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}
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void sde_kms_vm_trusted_resource_deinit(struct sde_kms *sde_kms)
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{
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struct dsi_display *display;
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struct sde_splash_display *handoff_display;
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int i;
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for (i = 0; i < sde_kms->dsi_display_count; i++) {
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handoff_display = &sde_kms->splash_data.splash_display[i];
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display = (struct dsi_display *)sde_kms->dsi_displays[i];
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if (handoff_display->cont_splash_enabled)
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_sde_kms_free_splash_display_data(sde_kms,
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handoff_display);
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dsi_display_set_active_state(display, false);
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}
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memset(&sde_kms->splash_data, 0, sizeof(struct sde_splash_data));
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}
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int sde_kms_vm_trusted_resource_init(struct sde_kms *sde_kms)
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{
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struct drm_device *dev;
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struct msm_drm_private *priv;
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struct sde_splash_display *handoff_display;
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struct dsi_display *display;
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int ret, i;
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if (!sde_kms || !sde_kms->dev || !sde_kms->dev->dev_private) {
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SDE_ERROR("invalid params\n");
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return -EINVAL;
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}
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if (!sde_kms->vm->vm_ops.vm_owns_hw(sde_kms)) {
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SDE_DEBUG(
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"skipping sde res init as device assign is not completed\n");
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return 0;
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}
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if (sde_kms->dsi_display_count != 1) {
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SDE_ERROR("no. of displays not supported:%d\n",
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sde_kms->dsi_display_count);
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return -EINVAL;
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}
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dev = sde_kms->dev;
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priv = dev->dev_private;
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sde_kms->splash_data.type = SDE_VM_HANDOFF;
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sde_kms->splash_data.num_splash_displays = sde_kms->dsi_display_count;
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ret = sde_rm_cont_splash_res_init(priv, &sde_kms->rm,
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&sde_kms->splash_data, sde_kms->catalog);
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for (i = 0; i < sde_kms->dsi_display_count; i++) {
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handoff_display = &sde_kms->splash_data.splash_display[i];
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display = (struct dsi_display *)sde_kms->dsi_displays[i];
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if (!handoff_display->cont_splash_enabled || ret)
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_sde_kms_free_splash_display_data(sde_kms,
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handoff_display);
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else
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dsi_display_set_active_state(display, true);
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}
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ret = sde_kms_cont_splash_config(&sde_kms->base);
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if (ret) {
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SDE_ERROR("error in setting handoff configs\n");
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goto error;
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}
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return 0;
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error:
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sde_kms_vm_trusted_resource_deinit(sde_kms);
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return ret;
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}
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static int _sde_kms_register_events(struct msm_kms *kms,
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struct drm_mode_object *obj, u32 event, bool en)
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{
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@@ -701,6 +701,19 @@ void sde_kms_irq_enable_notify(struct sde_kms *sde_kms, bool enable);
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*/
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int sde_kms_get_io_resources(struct sde_kms *kms, struct msm_io_res *io_res);
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/**
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* sde_kms_vm_trusted_resource_init - reserve/initialize the HW/SW resources
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* @sde_kms: poiner to sde_kms structure
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* return: 0 on success; error code otherwise
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*/
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int sde_kms_vm_trusted_resource_init(struct sde_kms *sde_kms);
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/**
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* sde_kms_vm_trusted_resource_deinit - release the HW/SW resources
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* @sde_kms: poiner to sde_kms structure
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*/
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void sde_kms_vm_trusted_resource_deinit(struct sde_kms *sde_kms);
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/**
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* sde_kms_vm_trusted_post_commit - function to prepare the VM after the
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* last commit before releasing the HW
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@@ -710,6 +723,7 @@ int sde_kms_get_io_resources(struct sde_kms *kms, struct msm_io_res *io_res);
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*/
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int sde_kms_vm_trusted_post_commit(struct sde_kms *sde_kms,
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struct drm_atomic_state *state);
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/**
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* sde_kms_vm_primary_post_commit - function to prepare the VM after the
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* last commit before assign the HW
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@@ -738,5 +752,4 @@ int sde_kms_vm_trusted_prepare_commit(struct sde_kms *sde_kms,
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*/
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int sde_kms_vm_primary_prepare_commit(struct sde_kms *sde_kms,
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struct drm_atomic_state *state);
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#endif /* __sde_kms_H__ */
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@@ -69,6 +69,7 @@ void sde_vm_irq_lend_notification_handler(void *req, enum hh_irq_label label)
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struct sde_vm_irq_entry irq_temp, *found = NULL;
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struct irq_data *exp_irq_data, *acc_irq_data;
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int accepted_irq, expected_irq;
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int rc;
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if (!req) {
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SDE_ERROR("invalid data on lend notification\n");
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@@ -121,6 +122,10 @@ void sde_vm_irq_lend_notification_handler(void *req, enum hh_irq_label label)
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exp_irq_data->hwirq);
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atomic_inc(&sde_vm->base.n_irq_lent);
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rc = sde_kms_vm_trusted_resource_init(sde_kms);
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if (rc)
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SDE_ERROR("vm resource init failed\n");
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end:
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mutex_unlock(&sde_vm->base.vm_res_lock);
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}
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@@ -186,6 +191,10 @@ static void sde_vm_mem_lend_notification_handler(enum hh_mem_notifier_tag tag,
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SDE_INFO("mem accept succeeded for tag: %d label: %d\n", tag,
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payload->label);
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rc = sde_kms_vm_trusted_resource_init(sde_kms);
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if (rc)
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SDE_ERROR("vm resource init failed\n");
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accept_fail:
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kfree(acl_desc);
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acl_fail:
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