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vmwgfx: Infrastructure for explicit placement 

Make it possible to use explicit placement
(although not hooked up with a user-space interface yet)
and relax the single framebuffer limit to only apply to implicit placement.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2011-11-02 09:43:11 +01:00 committed by Dave Airlie
parent 1543b4dd0c
commit 6987427a39
3 changed files with 30 additions and 24 deletions
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1
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
View File

@ -102,6 +102,7 @@ struct vmw_display_unit {
*/
int gui_x;
int gui_y;
bool is_implicit;
};
#define vmw_crtc_to_du(x) \

1
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
View File

@ -337,6 +337,7 @@ static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
ldu->base.pref_width = 800;
ldu->base.pref_height = 600;
ldu->base.pref_mode = NULL;
ldu->base.is_implicit = true;
drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);

52
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
View File

@ -36,9 +36,9 @@
container_of(x, struct vmw_screen_object_unit, base.connector)
struct vmw_screen_object_display {
unsigned num_active;
unsigned num_implicit;
struct vmw_framebuffer *fb;
struct vmw_framebuffer *implicit_fb;
};
/**
@ -51,7 +51,7 @@ struct vmw_screen_object_unit {
struct vmw_dma_buffer *buffer; /**< Backing store buffer */
bool defined;
bool active;
bool active_implicit;
};
static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
@ -75,10 +75,10 @@ static void vmw_sou_del_active(struct vmw_private *vmw_priv,
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
if (sou->active) {
if (--(ld->num_active) == 0)
ld->fb = NULL;
sou->active = false;
if (sou->active_implicit) {
if (--(ld->num_implicit) == 0)
ld->implicit_fb = NULL;
sou->active_implicit = false;
}
}
@ -88,12 +88,12 @@ static void vmw_sou_add_active(struct vmw_private *vmw_priv,
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
BUG_ON(!ld->num_active && ld->fb);
BUG_ON(!ld->num_implicit && ld->implicit_fb);
if (!sou->active) {
ld->fb = vfb;
sou->active = true;
ld->num_active++;
if (!sou->active_implicit && sou->base.is_implicit) {
ld->implicit_fb = vfb;
sou->active_implicit = true;
ld->num_implicit++;
}
}
@ -132,8 +132,13 @@ static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
(sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
cmd->obj.size.width = mode->hdisplay;
cmd->obj.size.height = mode->vdisplay;
cmd->obj.root.x = x;
cmd->obj.root.y = y;
if (sou->base.is_implicit) {
cmd->obj.root.x = x;
cmd->obj.root.y = y;
} else {
cmd->obj.root.x = sou->base.gui_x;
cmd->obj.root.y = sou->base.gui_y;
}
/* Ok to assume that buffer is pinned in vram */
vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr);
@ -280,10 +285,11 @@ static int vmw_sou_crtc_set_config(struct drm_mode_set *set)
}
/* sou only supports one fb active at the time */
if (dev_priv->sou_priv->fb && vfb &&
!(dev_priv->sou_priv->num_active == 1 &&
sou->active) &&
dev_priv->sou_priv->fb != vfb) {
if (sou->base.is_implicit &&
dev_priv->sou_priv->implicit_fb && vfb &&
!(dev_priv->sou_priv->num_implicit == 1 &&
sou->active_implicit) &&
dev_priv->sou_priv->implicit_fb != vfb) {
DRM_ERROR("Multiple framebuffers not supported\n");
return -EINVAL;
}
@ -439,12 +445,13 @@ static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
encoder = &sou->base.encoder;
connector = &sou->base.connector;
sou->active = false;
sou->active_implicit = false;
sou->base.pref_active = (unit == 0);
sou->base.pref_width = 800;
sou->base.pref_height = 600;
sou->base.pref_mode = NULL;
sou->base.is_implicit = true;
drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
@ -488,8 +495,8 @@ int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv)
if (unlikely(!dev_priv->sou_priv))
goto err_no_mem;
dev_priv->sou_priv->num_active = 0;
dev_priv->sou_priv->fb = NULL;
dev_priv->sou_priv->num_implicit = 0;
dev_priv->sou_priv->implicit_fb = NULL;
ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
if (unlikely(ret != 0))
@ -524,9 +531,6 @@ int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv)
drm_vblank_cleanup(dev);
if (dev_priv->sou_priv->num_active > 0)
DRM_ERROR("Still have active outputs when unloading driver");
kfree(dev_priv->sou_priv);
return 0;