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authorHans de Goede <hdegoede@redhat.com>2019-03-04 17:47:22 +0100
committerHans de Goede <hdegoede@redhat.com>2019-03-11 17:31:13 +0100
commitdcf7000bef40fdffc8369faa373a1468e98d8c5c (patch)
tree29bff6f7ed9396cafb3ad32eaa37af5bb2687f6f
parent893ded36e06de1f9826b6303b5733fbc4990a97a (diff)
downloadlinux-dcf7000bef40fdffc8369faa373a1468e98d8c5c.tar.bz2
staging/vboxvideo: Drop initial_mode_queried workaround
Drop the initial_mode_queried workaround for kms clients which do not support hotplug, all kms clients should be able to deal with hotplug. Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-2-hdegoede@redhat.com
-rw-r--r--drivers/staging/vboxvideo/TODO3
-rw-r--r--drivers/staging/vboxvideo/vbox_drv.c25
-rw-r--r--drivers/staging/vboxvideo/vbox_drv.h6
-rw-r--r--drivers/staging/vboxvideo/vbox_main.c6
-rw-r--r--drivers/staging/vboxvideo/vbox_mode.c21
5 files changed, 5 insertions, 56 deletions
diff --git a/drivers/staging/vboxvideo/TODO b/drivers/staging/vboxvideo/TODO
index 7f97c47a4042..2e0f99c3f10c 100644
--- a/drivers/staging/vboxvideo/TODO
+++ b/drivers/staging/vboxvideo/TODO
@@ -1,8 +1,5 @@
TODO:
-Get a full review from the drm-maintainers on dri-devel done on this driver
--Drop all the logic around initial_mode_queried, the master_set and
- master_drop callbacks and everything related to this. kms clients can handle
- hotplugs.
-Extend this TODO with the results of that review
Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c
index e7755a179850..fb6a0f0b8167 100644
--- a/drivers/staging/vboxvideo/vbox_drv.c
+++ b/drivers/staging/vboxvideo/vbox_drv.c
@@ -200,36 +200,11 @@ static const struct file_operations vbox_fops = {
.read = drm_read,
};
-static int vbox_master_set(struct drm_device *dev,
- struct drm_file *file_priv, bool from_open)
-{
- struct vbox_private *vbox = dev->dev_private;
-
- /*
- * We do not yet know whether the new owner can handle hotplug, so we
- * do not advertise dynamic modes on the first query and send a
- * tentative hotplug notification after that to see if they query again.
- */
- vbox->initial_mode_queried = false;
-
- return 0;
-}
-
-static void vbox_master_drop(struct drm_device *dev, struct drm_file *file_priv)
-{
- struct vbox_private *vbox = dev->dev_private;
-
- /* See vbox_master_set() */
- vbox->initial_mode_queried = false;
-}
-
static struct drm_driver driver = {
.driver_features =
DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
.lastclose = drm_fb_helper_lastclose,
- .master_set = vbox_master_set,
- .master_drop = vbox_master_drop,
.fops = &vbox_fops,
.irq_handler = vbox_irq_handler,
diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index aa40e5cc2861..bf2382e9d64c 100644
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -83,12 +83,6 @@ struct vbox_private {
} ttm;
struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
- /*
- * We decide whether or not user-space supports display hot-plug
- * depending on whether they react to a hot-plug event after the initial
- * mode query.
- */
- bool initial_mode_queried;
struct work_struct hotplug_work;
u32 input_mapping_width;
u32 input_mapping_height;
diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c
index e1fb70a42d32..f4d02de5518a 100644
--- a/drivers/staging/vboxvideo/vbox_main.c
+++ b/drivers/staging/vboxvideo/vbox_main.c
@@ -32,9 +32,9 @@ void vbox_report_caps(struct vbox_private *vbox)
u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
- if (vbox->initial_mode_queried)
- caps |= VBVACAPS_VIDEO_MODE_HINTS;
-
+ /* The host only accepts VIDEO_MODE_HINTS if it is send separately. */
+ hgsmi_send_caps_info(vbox->guest_pool, caps);
+ caps |= VBVACAPS_VIDEO_MODE_HINTS;
hgsmi_send_caps_info(vbox->guest_pool, caps);
}
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
index 213551394495..620a6e38f71f 100644
--- a/drivers/staging/vboxvideo/vbox_mode.c
+++ b/drivers/staging/vboxvideo/vbox_mode.c
@@ -736,29 +736,12 @@ static int vbox_get_modes(struct drm_connector *connector)
vbox_connector = to_vbox_connector(connector);
vbox = connector->dev->dev_private;
- /*
- * Heuristic: we do not want to tell the host that we support dynamic
- * resizing unless we feel confident that the user space client using
- * the video driver can handle hot-plug events. So the first time modes
- * are queried after a "master" switch we tell the host that we do not,
- * and immediately after we send the client a hot-plug notification as
- * a test to see if they will respond and query again.
- * That is also the reason why capabilities are reported to the host at
- * this place in the code rather than elsewhere.
- * We need to report the flags location before reporting the IRQ
- * capability.
- */
+
hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
HOST_FLAGS_OFFSET);
if (vbox_connector->vbox_crtc->crtc_id == 0)
vbox_report_caps(vbox);
- if (!vbox->initial_mode_queried) {
- if (vbox_connector->vbox_crtc->crtc_id == 0) {
- vbox->initial_mode_queried = true;
- vbox_report_hotplug(vbox);
- }
- return drm_add_modes_noedid(connector, 800, 600);
- }
+
num_modes = drm_add_modes_noedid(connector, 2560, 1600);
preferred_width = vbox_connector->mode_hint.width ?
vbox_connector->mode_hint.width : 1024;