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: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
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@ -1504,6 +1504,7 @@ static int r100_packet3_check(struct radeon_cs_parser *p,
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DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
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return -EINVAL;
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}
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track->vtx_size = r100_get_vtx_size(radeon_get_ib_value(p, idx + 0));
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track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
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track->immd_dwords = pkt->count - 1;
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r = r100_cs_track_check(p->rdev, track);
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