From Gen9, by default push constant command is not committed to the shader unit untill the corresponding shader's BTP_* command is parsed. This is the behaviour when set shader is enabled. This patch updates the batch to follow this requirement otherwise it results in gpu hang.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89959 Set shader need to be disabled if legacy behaviour is required. Cc: Ben Widawsky <[email protected]> Cc: Joonas Lahtinen <[email protected]> Cc: Mika Kuoppala <[email protected]> Signed-off-by: Arun Siluvery <[email protected]> --- If this patch is applied then we don't need to disable set shader bit in kernel and the following can be discarded. http://lists.freedesktop.org/archives/intel-gfx/2015-August/073425.html lib/rendercopy_gen9.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/lib/rendercopy_gen9.c b/lib/rendercopy_gen9.c index 4a4a604..9537480 100644 --- a/lib/rendercopy_gen9.c +++ b/lib/rendercopy_gen9.c @@ -590,13 +590,9 @@ gen8_emit_multisample(struct intel_batchbuffer *batch) { static void gen8_emit_vs(struct intel_batchbuffer *batch) { - OUT_BATCH(GEN7_3DSTATE_BINDING_TABLE_POINTERS_VS); + OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS | (11-2)); OUT_BATCH(0); - - OUT_BATCH(GEN7_3DSTATE_SAMPLER_STATE_POINTERS_VS); OUT_BATCH(0); - - OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS | (11-2)); OUT_BATCH(0); OUT_BATCH(0); OUT_BATCH(0); @@ -605,7 +601,11 @@ gen8_emit_vs(struct intel_batchbuffer *batch) { OUT_BATCH(0); OUT_BATCH(0); OUT_BATCH(0); + + OUT_BATCH(GEN7_3DSTATE_BINDING_TABLE_POINTERS_VS); OUT_BATCH(0); + + OUT_BATCH(GEN7_3DSTATE_SAMPLER_STATE_POINTERS_VS); OUT_BATCH(0); OUT_BATCH(GEN6_3DSTATE_VS | (9-2)); @@ -998,14 +998,14 @@ void gen9_render_copyfunc(struct intel_batchbuffer *batch, gen8_emit_sf(batch); + gen8_emit_ps(batch, ps_kernel_off); + OUT_BATCH(GEN7_3DSTATE_BINDING_TABLE_POINTERS_PS); OUT_BATCH(ps_binding_table); OUT_BATCH(GEN7_3DSTATE_SAMPLER_STATE_POINTERS_PS); OUT_BATCH(ps_sampler_state); - gen8_emit_ps(batch, ps_kernel_off); - OUT_BATCH(GEN6_3DSTATE_SCISSOR_STATE_POINTERS); OUT_BATCH(scissor_state); -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
