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Commit 2fb2b3c6 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

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



fdo#92761

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent ccb7b6ba

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf117.c

+2 −0
Original line number Diff line number Diff line
@@ -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];

drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

		}

	}

drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.h

+1 −0
Original line number Diff line number Diff line
@@ -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;