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drm/nvd0-/disp: handle case where display engine is missing/disabled

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Maarten Lankhorst 2013-06-27 17:35:53 +10:00 committed by Ben Skeggs
parent e99716f13d
commit 791dc143ed
6 changed files with 17 additions and 7 deletions
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3
drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
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@ -958,6 +958,9 @@ nvd0_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
int heads = nv_rd32(parent, 0x022448);
int ret;
if (nv_rd32(parent, 0x022500) & 0x00000001)
return -ENODEV;
ret = nouveau_disp_create(parent, engine, oclass, heads,
"PDISP", "display", &priv);
*pobject = nv_object(priv);

3
drivers/gpu/drm/nouveau/core/engine/disp/nve0.c
View File

@ -54,6 +54,9 @@ nve0_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
int heads = nv_rd32(parent, 0x022448);
int ret;
if (nv_rd32(parent, 0x022500) & 0x00000001)
return -ENODEV;
ret = nouveau_disp_create(parent, engine, oclass, heads,
"PDISP", "display", &priv);
*pobject = nv_object(priv);

3
drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c
View File

@ -54,6 +54,9 @@ nvf0_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
int heads = nv_rd32(parent, 0x022448);
int ret;
if (nv_rd32(parent, 0x022500) & 0x00000001)
return -ENODEV;
ret = nouveau_disp_create(parent, engine, oclass, heads,
"PDISP", "display", &priv);
*pobject = nv_object(priv);

6
drivers/gpu/drm/nouveau/core/subdev/bios/base.c
View File

@ -85,11 +85,15 @@ static void
nouveau_bios_shadow_pramin(struct nouveau_bios *bios)
{
struct nouveau_device *device = nv_device(bios);
u64 addr = 0;
u32 bar0 = 0;
int i;
if (device->card_type >= NV_50) {
u64 addr = (u64)(nv_rd32(bios, 0x619f04) & 0xffffff00) << 8;
if ( device->card_type < NV_C0 ||
!(nv_rd32(bios, 0x022500) & 0x00000001))
addr = (u64)(nv_rd32(bios, 0x619f04) & 0xffffff00) << 8;
if (!addr) {
addr = (u64)nv_rd32(bios, 0x001700) << 16;
addr += 0xf0000;

2
drivers/gpu/drm/nouveau/core/subdev/devinit/nvc0.c
View File

@ -73,6 +73,8 @@ nvc0_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
return ret;
priv->base.pll_set = nvc0_devinit_pll_set;
if (nv_rd32(priv, 0x022500) & 0x00000001)
priv->base.post = true;
return 0;
}

7
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -2051,19 +2051,14 @@ nouveau_bios_posted(struct drm_device *dev)
struct nouveau_drm *drm = nouveau_drm(dev);
unsigned htotal;
if (nv_device(drm->device)->card_type >= NV_50) {
if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
NVReadVgaCrtc(dev, 0, 0x1a) == 0)
return false;
if (nv_device(drm->device)->card_type >= NV_50)
return true;
}
htotal = NVReadVgaCrtc(dev, 0, 0x06);
htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
return (htotal != 0);
}