From 40013c50333caf7a4a66204ac29695aad0d9b06d Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Mon, 13 Jun 2016 23:09:31 -0700 Subject: i965: Reorganize prog_data->total_scratch code a bit. Cc: "12.0" Signed-off-by: Kenneth Graunke Reviewed-by: Ian Romanick --- src/mesa/drivers/dri/i965/brw_fs.cpp | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp') diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 8f8f3c2451e..09b0431a965 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -5976,23 +5976,26 @@ fs_visitor::allocate_registers(bool allow_spilling) schedule_instructions(SCHEDULE_POST); if (last_scratch > 0) { - prog_data->total_scratch = brw_get_scratch_size(last_scratch); + unsigned max_scratch_size = 2 * 1024 * 1024; - if (devinfo->is_haswell && stage == MESA_SHADER_COMPUTE) { - /* According to the MEDIA_VFE_STATE's "Per Thread Scratch Space" - * field documentation, Haswell supports a minimum of 2kB of - * scratch space for compute shaders, unlike every other stage - * and platform. - */ - prog_data->total_scratch = MAX2(prog_data->total_scratch, 2048); - } else if (devinfo->gen <= 7 && stage == MESA_SHADER_COMPUTE) { - /* According to the MEDIAVFE_STATE's "Per Thread Scratch Space" - * field documentation, platforms prior to Haswell measure scratch - * size linearly with a range of [1kB, 12kB] and 1kB granularity. - */ - prog_data->total_scratch = ALIGN(last_scratch, 1024); + prog_data->total_scratch = brw_get_scratch_size(last_scratch); - assert(prog_data->total_scratch < 12 * 1024); + if (stage == MESA_SHADER_COMPUTE) { + if (devinfo->is_haswell) { + /* According to the MEDIA_VFE_STATE's "Per Thread Scratch Space" + * field documentation, Haswell supports a minimum of 2kB of + * scratch space for compute shaders, unlike every other stage + * and platform. + */ + prog_data->total_scratch = MAX2(prog_data->total_scratch, 2048); + } else if (devinfo->gen <= 7) { + /* According to the MEDIA_VFE_STATE's "Per Thread Scratch Space" + * field documentation, platforms prior to Haswell measure scratch + * size linearly with a range of [1kB, 12kB] and 1kB granularity. + */ + prog_data->total_scratch = ALIGN(last_scratch, 1024); + max_scratch_size = 12 * 1024; + } } /* We currently only support up to 2MB of scratch space. If we @@ -6005,7 +6008,7 @@ fs_visitor::allocate_registers(bool allow_spilling) * See 3D-Media-GPGPU Engine > Media GPGPU Pipeline > * Thread Group Tracking > Local Memory/Scratch Space. */ - assert(prog_data->total_scratch < 2 * 1024 * 1024); + assert(prog_data->total_scratch < max_scratch_size); } } -- cgit v1.2.3