Attachment 37982 Details for Bug 28474 – add module parameter to disable polling

[patch] add module parameter to disable polling

kernel-r300-add-disable-polling-param.patch (text/plain), 1.64 KB, created by Giacomo Perale on 2010-08-19 07:07:08 UTC

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Filename:

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Creator: Giacomo Perale

Created: 2010-08-19 07:07:08 UTC

Size: 1.64 KB

patch

obsolete

>--- drivers/gpu/drm/drm_crtc_helper.c	2010-08-02 00:11:14.000000000 +0200
>+++ drivers/gpu/drm/drm_crtc_helper.c	2010-08-19 12:40:45.435465241 +0200
>@@ -34,6 +34,9 @@
> #include "drm_crtc_helper.h"
> #include "drm_fb_helper.h"
> 
>+static bool drm_kms_helper_poll = true;
>+module_param_named(poll, drm_kms_helper_poll, bool, 0600);
>+
> static void drm_mode_validate_flag(struct drm_connector *connector,
> 				   int flags)
> {
>@@ -98,8 +101,10 @@
> 			connector->status = connector_status_disconnected;
> 		if (connector->funcs->force)
> 			connector->funcs->force(connector);
>-	} else
>+	} else {
> 		connector->status = connector->funcs->detect(connector);
>+		drm_helper_hpd_irq_event(dev);
>+	}
> 
> 	if (connector->status == connector_status_disconnected) {
> 		DRM_DEBUG_KMS("%s is disconnected\n",
>@@ -820,6 +825,9 @@
> 	bool repoll = false, changed = false;
> 	int ret;
> 
>+	if (!drm_kms_helper_poll)
>+		return;
>+
> 	mutex_lock(&dev->mode_config.mutex);
> 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
> 
>@@ -874,6 +882,9 @@
> 	struct drm_connector *connector;
> 	int ret;
> 
>+	if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
>+		return;
>+
> 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
> 		if (connector->polled)
> 			poll = true;
>@@ -909,9 +920,11 @@
> {
> 	if (!dev->mode_config.poll_enabled)
> 		return;
>+
> 	delayed_slow_work_cancel(&dev->mode_config.output_poll_slow_work);
> 	/* schedule a slow work asap */
>-	delayed_slow_work_enqueue(&dev->mode_config.output_poll_slow_work, 0);
>+	if (drm_kms_helper_poll)
>+		delayed_slow_work_enqueue(&dev->mode_config.output_poll_slow_work, 0);
> }
> EXPORT_SYMBOL(drm_helper_hpd_irq_event);
>

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Attachments on bug 28474: 36187 | 37427 | 37879 | 37982

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