From 966c9907c040b4fe4b288b4a9d82598797aee743 Mon Sep 17 00:00:00 2001 From: Pauli Nieminen Date: Sat, 29 Aug 2009 12:08:57 +0300 Subject: libdrm_radeon: Optimize cs_gem_reloc to do less looping. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit bo->referenced_in_cs is checked if bo is already in cs. Adding and removing reference in bo is done with atomic operations to allow parallel access to a bo from multiple contexts. cs->id generation code quarentees there is not duplicated ids which limits number of cs->ids to 32. If there is more cs objects rest will get id 0. V2: - Fix configure to check for atomics operations if libdrm_radeon is only selected. - Make atomic operations private to libdrm. This optimization decreases cs_write_reloc share of torcs profiling from 4.3% to 2.6%. Tested-by: Michel Dänzer Signed-off-by: Pauli Nieminen --- radeon/radeon_cs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'radeon/radeon_cs.h') diff --git a/radeon/radeon_cs.h b/radeon/radeon_cs.h index 49d5d9a6..7f6ee68b 100644 --- a/radeon/radeon_cs.h +++ b/radeon/radeon_cs.h @@ -85,7 +85,7 @@ extern int radeon_cs_write_reloc(struct radeon_cs *cs, uint32_t read_domain, uint32_t write_domain, uint32_t flags); - +extern uint32_t radeon_cs_get_id(struct radeon_cs *cs); /* * add a persistent BO to the list * a persistent BO is one that will be referenced across flushes, -- cgit v1.2.3