KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i965: Program MEDIA_VFE_STATE in a more readable fashion. 

This patch is purely for readability improvements when programming
the MEDIA_VFE_STATE.

Signed-off-by: Kevin Rogovin <kevin.rogovin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kevin Rogovin 2017-12-12 14:17:26 +02:00 committed by Kenneth Graunke
parent 7469966ed2
commit eea9027f87
1 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/mesa/drivers/dri/i965/genX_state_upload.c
View File

@ -4183,28 +4183,35 @@ genX(upload_cs_state)(struct brw_context *brw)
brw_batch_emit(brw, GENX(MEDIA_VFE_STATE), vfe) {
if (prog_data->total_scratch) {
uint32_t bo_offset;
uint32_t per_thread_scratch_value;
if (GEN_GEN >= 8) {
/* Broadwell's Per Thread Scratch Space is in the range [0, 11]
* where 0 = 1k, 1 = 2k, 2 = 4k, ..., 11 = 2M.
*/
bo_offset = ffs(stage_state->per_thread_scratch) - 11;
per_thread_scratch_value = ffs(stage_state->per_thread_scratch) - 11;
} else if (GEN_IS_HASWELL) {
/* Haswell's Per Thread Scratch Space is in the range [0, 10]
* where 0 = 2k, 1 = 4k, 2 = 8k, ..., 10 = 2M.
*/
bo_offset = ffs(stage_state->per_thread_scratch) - 12;
per_thread_scratch_value = ffs(stage_state->per_thread_scratch) - 12;
} else {
/* Earlier platforms use the range [0, 11] to mean [1kB, 12kB]
* where 0 = 1kB, 1 = 2kB, 2 = 3kB, ..., 11 = 12kB.
*/
bo_offset = stage_state->per_thread_scratch / 1024 - 1;
per_thread_scratch_value = stage_state->per_thread_scratch / 1024 - 1;
}
vfe.ScratchSpaceBasePointer =
rw_bo(stage_state->scratch_bo, bo_offset);
vfe.ScratchSpaceBasePointer = rw_bo(stage_state->scratch_bo, 0);
vfe.PerThreadScratchSpace = per_thread_scratch_value;
}
/* If brw->screen->subslice_total is greater than one, then
* devinfo->max_cs_threads stores number of threads per sub-slice;
* thus we need to multiply by that number by subslices to get
* the actual maximum number of threads; the -1 is because the HW
* has a bias of 1 (would not make sense to say the maximum number
* of threads is 0).
*/
const uint32_t subslices = MAX2(brw->screen->subslice_total, 1);
vfe.MaximumNumberofThreads = devinfo->max_cs_threads * subslices - 1;
vfe.NumberofURBEntries = GEN_GEN >= 8 ? 2 : 0;