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drm/nvf0/gr: magic sequence that makes PGRAPH come out of hiding

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-07-04 11:01:34 +10:00
parent 9ec2dbba9f
commit b054aadfb0
2 changed files with 48 additions and 4 deletions
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2
drivers/gpu/drm/nouveau/core/engine/device/nve0.c
View File

@ -164,10 +164,8 @@ nve0_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_BAR ] = &nvc0_bar_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nvd0_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nve0_fifo_oclass;
#if 0
device->oclass[NVDEV_ENGINE_SW ] = &nvc0_software_oclass;
device->oclass[NVDEV_ENGINE_GR ] = nvf0_graph_oclass;
#endif
device->oclass[NVDEV_ENGINE_DISP ] = &nvf0_disp_oclass;
device->oclass[NVDEV_ENGINE_COPY0 ] = &nve0_copy0_oclass;
device->oclass[NVDEV_ENGINE_COPY1 ] = &nve0_copy1_oclass;

50
drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c
View File

@ -24,6 +24,15 @@
#include "nvc0.h"
/*******************************************************************************
* Graphics object classes
******************************************************************************/
static struct nouveau_oclass
nvf0_graph_sclass[] = {
{}
};
/*******************************************************************************
* PGRAPH engine/subdev functions
******************************************************************************/
@ -142,6 +151,43 @@ nvf0_graph_init_tpc[] = {
{}
};
static int
nvf0_graph_fini(struct nouveau_object *object, bool suspend)
{
struct nvc0_graph_priv *priv = (void *)object;
static const struct {
u32 addr;
u32 data;
} magic[] = {
{ 0x020520, 0xfffffffc },
{ 0x020524, 0xfffffffe },
{ 0x020524, 0xfffffffc },
{ 0x020524, 0xfffffff8 },
{ 0x020524, 0xffffffe0 },
{ 0x020530, 0xfffffffe },
{ 0x02052c, 0xfffffffa },
{ 0x02052c, 0xfffffff0 },
{ 0x02052c, 0xffffffc0 },
{ 0x02052c, 0xffffff00 },
{ 0x02052c, 0xfffffc00 },
{ 0x02052c, 0xfffcfc00 },
{ 0x02052c, 0xfff0fc00 },
{ 0x02052c, 0xff80fc00 },
{ 0x020528, 0xfffffffe },
{ 0x020528, 0xfffffffc },
};
int i;
nv_mask(priv, 0x000200, 0x08001000, 0x00000000);
nv_mask(priv, 0x0206b4, 0x00000000, 0x00000000);
for (i = 0; i < ARRAY_SIZE(magic); i++) {
nv_wr32(priv, magic[i].addr, magic[i].data);
nv_wait(priv, magic[i].addr, 0x80000000, 0x00000000);
}
return nouveau_graph_fini(&priv->base, suspend);
}
static struct nvc0_graph_init *
nvf0_graph_init_mmio[] = {
nve4_graph_init_regs,
@ -168,9 +214,9 @@ nvf0_graph_oclass = &(struct nvc0_graph_oclass) {
.ctor = nvc0_graph_ctor,
.dtor = nvc0_graph_dtor,
.init = nve4_graph_init,
.fini = _nouveau_graph_fini,
.fini = nvf0_graph_fini,
},
.cclass = &nvf0_grctx_oclass,
.sclass = NULL,
.sclass = nvf0_graph_sclass,
.mmio = nvf0_graph_init_mmio,
}.base;