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Commit cf57fc7a authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms/r100: fix bug in CS parser 



The first dword of PACKET3_3D_DRAW_IMMD maps to
SE_VTX_FMT so the vertex size is part of the draw
packet.

This patch fixes a possible case where you have a
command buffer that does not contain SE_VTX_FMT
register write, but does contain PACKET3_3D_DRAW_IMMD.

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 828153e2

drivers/gpu/drm/radeon/r100.c

+1 −0
Original line number Diff line number Diff line
@@ -1504,6 +1504,7 @@ static int r100_packet3_check(struct radeon_cs_parser *p, 
			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");

			return -EINVAL;

		}

		track->vtx_size = r100_get_vtx_size(radeon_get_ib_value(p, idx + 0));

		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);

		track->immd_dwords = pkt->count - 1;

		r = r100_cs_track_check(p->rdev, track);