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Commit 74b6068b authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/gr/gf100-: add missing reset sequence before golden context init 



RM and NVGPU both have a variant of this, we probably should too.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 201ed6f6

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c

+20 −0
Original line number Diff line number Diff line
@@ -1456,6 +1456,26 @@ gf100_grctx_generate(struct gf100_gr *gr) 
	int ret, i;

	u64 addr;



	/* NV_PGRAPH_FE_PWR_MODE_FORCE_ON. */

	nvkm_wr32(device, 0x404170, 0x00000012);

	nvkm_msec(device, 2000,

		if (!(nvkm_rd32(device, 0x404170) & 0x00000010))

			break;

	);



	/* Reset FECS. */

	nvkm_wr32(device, 0x409614, 0x00000070);

	nvkm_usec(device, 10, NVKM_DELAY);

	nvkm_mask(device, 0x409614, 0x00000700, 0x00000700);

	nvkm_usec(device, 10, NVKM_DELAY);

	nvkm_rd32(device, 0x409614);



	/* NV_PGRAPH_FE_PWR_MODE_AUTO. */

	nvkm_wr32(device, 0x404170, 0x00000010);



	/* Init SCC RAM. */

	nvkm_wr32(device, 0x40802c, 0x00000001);



	/* Allocate memory to for a "channel", which we'll use to generate

	 * the default context values.

	 */