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drm/nouveau/gr/gf117-: assume no PPC if NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK is zero

Browse source 
fdo#92761

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-11-23 05:47:19 +10:00
parent ccb7b6ba07
commit 2fb2b3c6e4
3 changed files with 5 additions and 0 deletions
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2
drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf117.c
View file

@ -207,6 +207,8 @@ gf117_grctx_generate_attrib(struct gf100_grctx *info)
const u32 b = beta * gr->ppc_tpc_nr[gpc][ppc];
const u32 t = timeslice_mode;
const u32 o = PPC_UNIT(gpc, ppc, 0);
if (!(gr->ppc_mask[gpc] & (1 << ppc)))
continue;
mmio_skip(info, o + 0xc0, (t << 28) | (b << 16) | ++bo);
mmio_wr32(info, o + 0xc0, (t << 28) | (b << 16) | --bo);
bo += grctx->attrib_nr_max * gr->ppc_tpc_nr[gpc][ppc];

2
drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
View file

@ -1530,6 +1530,8 @@ gf100_gr_oneinit(struct nvkm_gr *base)
gr->ppc_nr[i] = gr->func->ppc_nr;
for (j = 0; j < gr->ppc_nr[i]; j++) {
u8 mask = nvkm_rd32(device, GPC_UNIT(i, 0x0c30 + (j * 4)));
if (mask)
gr->ppc_mask[i] |= (1 << j);
gr->ppc_tpc_nr[i][j] = hweight8(mask);
}
}

1
drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h
View file

@ -97,6 +97,7 @@ struct gf100_gr {
u8 tpc_nr[GPC_MAX];
u8 tpc_total;
u8 ppc_nr[GPC_MAX];
u8 ppc_mask[GPC_MAX];
u8 ppc_tpc_nr[GPC_MAX][4];
struct nvkm_memory *unk4188b4;