denshooter/genode
1
0
Fork 0
mirror of https://github.com/mmueller41/genode.git synced 2026-01-21 12:32:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

gpu/intel: add gen9 w/a for submit batch

Browse Source 
issue #4254
This commit is contained in:
Alexander Boettcher
2021-08-04 10:41:58 +02:00
committed by Christian Helmuth
parent b2440a72c3
commit 6c7bcdd32e
1 changed files with 17 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
repos/os/src/drivers/gpu/intel/main.cc
View File

@@ -564,7 +564,8 @@ struct Igd::Device
Ring_buffer::Index advance = 0; Ring_buffer::Index advance = 0;
size_t const need = 4 /* batchbuffer cmd */ + 6 /* prolog */ + 16 /* epilog + w/a */; size_t const need = 4 /* batchbuffer cmd */ + 6 /* prolog */ + 16 /* epilog + w/a */
+ (_device.generation().value == 9) ? 6 : 0;
if (!el.ring_avail(need)) { el.ring_reset_and_fill_zero(); } if (!el.ring_avail(need)) { el.ring_reset_and_fill_zero(); }
/* save old tail */ /* save old tail */
@@ -576,6 +577,21 @@ struct Igd::Device
* Pipeline synchronization * Pipeline synchronization
*/ */
/*
* on GEN9: emit empty pipe control before VF_CACHE_INVALIDATE
* - Linux 5.13 gen8_emit_flush_rcs()
*/
if (_device.generation().value == 9) {
enum { CMD_NUM = 6 };
Genode::uint32_t cmd[CMD_NUM] = {};
Igd::Pipe_control pc(CMD_NUM);
cmd[0] = pc.value;
for (size_t i = 0; i < CMD_NUM; i++) {
advance += el.ring_append(cmd[i]);
}
}
/* prolog */ /* prolog */
if (1) if (1)
{ {