Am 17.05.21 um 13:59 schrieb Deepak Rawat:
Virtual device inform if screen update is needed or not with SYNTHVID_FEATURE_CHANGE message. Handle this message to set dirt_needed flag. Suggested-by: Dexuan Cui <de...@microsoft.com> Signed-off-by: Deepak Rawat <drawat.fl...@gmail.com>
Acked-by: Thomas Zimmermann <tzimmerm...@suse.de>
--- drivers/gpu/drm/hyperv/hyperv_drm.h | 1 + drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 2 ++ drivers/gpu/drm/hyperv/hyperv_drm_proto.c | 7 +++++++ 3 files changed, 10 insertions(+) diff --git a/drivers/gpu/drm/hyperv/hyperv_drm.h b/drivers/gpu/drm/hyperv/hyperv_drm.h index e1d1fdea96f2..886add4f9cd0 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm.h +++ b/drivers/gpu/drm/hyperv/hyperv_drm.h @@ -29,6 +29,7 @@ struct hyperv_drm_device { struct completion wait; u32 synthvid_version; u32 mmio_megabytes; + bool dirt_needed;u8 init_buf[VMBUS_MAX_PACKET_SIZE];u8 recv_buf[VMBUS_MAX_PACKET_SIZE]; diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c index 68a6ba91a486..8e6ff86c471a 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c @@ -201,6 +201,8 @@ static int hyperv_vmbus_probe(struct hv_device *hdev, if (ret) drm_warn(dev, "Failed to update vram location.\n");+ hv->dirt_needed = true;+ ret = hyperv_mode_config_init(hv); if (ret) goto err_vmbus_close; diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_proto.c b/drivers/gpu/drm/hyperv/hyperv_drm_proto.c index 700870b243fe..6fff24b40974 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_proto.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_proto.c @@ -301,8 +301,12 @@ int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect){ + struct hyperv_drm_device *hv = hv_get_drvdata(hdev); struct synthvid_msg msg;+ if (!hv->dirt_needed)+ return 0; + memset(&msg, 0, sizeof(struct synthvid_msg));msg.vid_hdr.type = SYNTHVID_DIRT;@@ -387,6 +391,9 @@ static void hyperv_receive_sub(struct hv_device *hdev) complete(&hv->wait); return; } + + if (msg->vid_hdr.type == SYNTHVID_FEATURE_CHANGE) + hv->dirt_needed = msg->feature_chg.is_dirt_needed; }static void hyperv_receive(void *ctx)
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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