From: Neil Roberts Date: Fri, 27 Feb 2015 16:57:22 +0000 (+0000) Subject: i965/skl: Fix the maximum thread count format for the PS X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=aef8a4897937c0c06c7b01e39de23117a6e81d3e;p=mesa.git i965/skl: Fix the maximum thread count format for the PS According to the bspec for some reason the format of the maximum number of threads field has changed from U8-2 to U8-1 for the PS. Reviewed-by: Anuj Phogat --- diff --git a/src/mesa/drivers/dri/i965/gen8_ps_state.c b/src/mesa/drivers/dri/i965/gen8_ps_state.c index d4a58e4101e..5f39e12b89c 100644 --- a/src/mesa/drivers/dri/i965/gen8_ps_state.c +++ b/src/mesa/drivers/dri/i965/gen8_ps_state.c @@ -146,8 +146,13 @@ upload_ps_state(struct brw_context *brw) /* 3DSTATE_PS expects the number of threads per PSD, which is always 64; * it implicitly scales for different GT levels (which have some # of PSDs). + * + * In Gen8 the format is U8-2 whereas in Gen9 it is U8-1. */ - dw6 |= (64 - 2) << HSW_PS_MAX_THREADS_SHIFT; + if (brw->gen >= 9) + dw6 |= (64 - 1) << HSW_PS_MAX_THREADS_SHIFT; + else + dw6 |= (64 - 2) << HSW_PS_MAX_THREADS_SHIFT; if (prog_data->base.nr_params > 0) dw6 |= GEN7_PS_PUSH_CONSTANT_ENABLE;