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Subject[PATCH v2 1/3] drm/crtc: Introduce per-crtc kworker
Date
From: Rob Clark <robdclark@chromium.org>

This will be used for non-block atomic commits.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/drm_crtc.c | 11 +++++++++++
include/drm/drm_crtc.h | 8 ++++++++
2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index aecdd7ea26dc..4f7c0bfce0a3 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -326,6 +326,14 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
config->prop_out_fence_ptr, 0);
drm_object_attach_property(&crtc->base,
config->prop_vrr_enabled, 0);
+
+ crtc->worker = kthread_create_worker(0, "%s-worker", crtc->name);
+ if (IS_ERR(crtc->worker)) {
+ drm_mode_object_unregister(dev, &crtc->base);
+ ret = PTR_ERR(crtc->worker);
+ crtc->worker = NULL;
+ return ret;
+ }
}

return 0;
@@ -366,6 +374,9 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)

kfree(crtc->name);

+ if (crtc->worker)
+ kthread_destroy_worker(crtc->worker);
+
memset(crtc, 0, sizeof(*crtc));
}
EXPORT_SYMBOL(drm_crtc_cleanup);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 59b51a09cae6..dfdb04619b0d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -30,6 +30,7 @@
#include <linux/types.h>
#include <linux/fb.h>
#include <linux/hdmi.h>
+#include <linux/kthread.h>
#include <linux/media-bus-format.h>
#include <uapi/drm/drm_mode.h>
#include <uapi/drm/drm_fourcc.h>
@@ -1172,6 +1173,13 @@ struct drm_crtc {
* Initialized via drm_self_refresh_helper_init().
*/
struct drm_self_refresh_data *self_refresh_data;
+
+ /**
+ * @worker:
+ *
+ * Per-CRTC worker for nonblock atomic commits.
+ */
+ struct kthread_worker *worker;
};

/**
--
2.26.2
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