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vmwgfx: Remove screen object active list

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It isn't used for anything. Replace with an active bool.

Also make a couple of functions return void instead of int
since their return value wasn't checked anyway.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakbo Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2011-11-02 09:43:09 +01:00 committed by Dave Airlie
parent d4528b846e
commit 0e708bc5d6
1 changed files with 15 additions and 37 deletions
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52
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
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@ -36,8 +36,6 @@
container_of(x, struct vmw_screen_object_unit, base.connector)
struct vmw_screen_object_display {
struct list_head active;
unsigned num_active;
struct vmw_framebuffer *fb;
@ -53,13 +51,11 @@ struct vmw_screen_object_unit {
struct vmw_dma_buffer *buffer; /**< Backing store buffer */
bool defined;
struct list_head active;
bool active;
};
static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
{
list_del_init(&sou->active);
vmw_display_unit_cleanup(&sou->base);
kfree(sou);
}
@ -74,48 +70,31 @@ static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
vmw_sou_destroy(vmw_crtc_to_sou(crtc));
}
static int vmw_sou_del_active(struct vmw_private *vmw_priv,
static void vmw_sou_del_active(struct vmw_private *vmw_priv,
struct vmw_screen_object_unit *sou)
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
if (list_empty(&sou->active))
return 0;
/* Must init otherwise list_empty(&sou->active) will not work. */
list_del_init(&sou->active);
if (--(ld->num_active) == 0)
ld->fb = NULL;
return 0;
if (sou->active) {
if (--(ld->num_active) == 0)
ld->fb = NULL;
sou->active = false;
}
}
static int vmw_sou_add_active(struct vmw_private *vmw_priv,
static void vmw_sou_add_active(struct vmw_private *vmw_priv,
struct vmw_screen_object_unit *sou,
struct vmw_framebuffer *vfb)
{
struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
struct vmw_screen_object_unit *entry;
struct list_head *at;
BUG_ON(!ld->num_active && ld->fb);
ld->fb = vfb;
if (!list_empty(&sou->active))
return 0;
at = &ld->active;
list_for_each_entry(entry, &ld->active, active) {
if (entry->base.unit > sou->base.unit)
break;
at = &entry->active;
if (!sou->active) {
ld->fb = vfb;
sou->active = true;
ld->num_active++;
}
list_add(&sou->active, at);
ld->num_active++;
return 0;
}
/**
@ -303,7 +282,7 @@ 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 &&
!list_empty(&sou->active)) &&
sou->active) &&
dev_priv->sou_priv->fb != vfb) {
DRM_ERROR("Multiple framebuffers not supported\n");
return -EINVAL;
@ -460,7 +439,7 @@ static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
encoder = &sou->base.encoder;
connector = &sou->base.connector;
INIT_LIST_HEAD(&sou->active);
sou->active = false;
sou->base.pref_active = (unit == 0);
sou->base.pref_width = 800;
@ -509,7 +488,6 @@ int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv)
if (unlikely(!dev_priv->sou_priv))
goto err_no_mem;
INIT_LIST_HEAD(&dev_priv->sou_priv->active);
dev_priv->sou_priv->num_active = 0;
dev_priv->sou_priv->fb = NULL;
@ -546,7 +524,7 @@ int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv)
drm_vblank_cleanup(dev);
if (!list_empty(&dev_priv->sou_priv->active))
if (dev_priv->sou_priv->num_active > 0)
DRM_ERROR("Still have active outputs when unloading driver");
kfree(dev_priv->sou_priv);