From cf57fc7aa2ac61d02a29550b99db6a01ccd7917c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 18 Jan 2010 20:20:07 -0500 Subject: [PATCH] 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 Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 62b27bede651..11c9a3fe6810 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -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);