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| author | Deepak Rawat <drawat.floss@gmail.com> | 2021-05-27 04:22:29 -0700 |
|---|---|---|
| committer | Deepak Rawat <drawat.floss@gmail.com> | 2021-06-07 08:04:10 -0700 |
| commit | 25bfa956561fb47141b8cc382e69a1f674a27eb0 (patch) | |
| tree | d535d78b0db152bdfda30afdb1b7eda4c0c8c1bd /drivers/gpu/drm/hyperv | |
| parent | 76c56a5affeba1e163b66b9d8cc192e6154466f0 (diff) | |
| download | linux-rpi-25bfa956561fb47141b8cc382e69a1f674a27eb0.tar.gz linux-rpi-25bfa956561fb47141b8cc382e69a1f674a27eb0.tar.bz2 linux-rpi-25bfa956561fb47141b8cc382e69a1f674a27eb0.zip | |
drm/hyperv: Handle feature change message from device
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 <decui@microsoft.com>
Signed-off-by: Deepak Rawat <drawat.floss@gmail.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210527112230.1274-2-drawat.floss@gmail.com
Diffstat (limited to 'drivers/gpu/drm/hyperv')
| -rw-r--r-- | drivers/gpu/drm/hyperv/hyperv_drm.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/hyperv/hyperv_drm_proto.c | 7 |
3 files changed, 10 insertions, 0 deletions
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 beb53068fa0d..eb06c92c4bfd 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c @@ -198,6 +198,8 @@ 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 00c4cc2db605..6d4bdccfbd1a 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) |