From 3074b61f64601be4620f1fb3c48c7c6024d3fd57 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Mon, 27 Sep 2010 09:58:09 +0800 Subject: [PATCH] i965: fix occlusion query on sandybridge Fix pipe control command for depth stall and PS_DEPTH_COUNT write. --- src/mesa/drivers/dri/i965/brw_queryobj.c | 161 ++++++++++++++++------- 1 file changed, 114 insertions(+), 47 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_queryobj.c b/src/mesa/drivers/dri/i965/brw_queryobj.c index f6868c83ac7..1b183735d75 100644 --- a/src/mesa/drivers/dri/i965/brw_queryobj.c +++ b/src/mesa/drivers/dri/i965/brw_queryobj.c @@ -107,16 +107,29 @@ brw_begin_query(GLcontext *ctx, struct gl_query_object *q) query->bo = drm_intel_bo_alloc(intel->bufmgr, "timer query", 4096, 4096); - BEGIN_BATCH(4); - OUT_BATCH(_3DSTATE_PIPE_CONTROL | - PIPE_CONTROL_WRITE_TIMESTAMP); - OUT_RELOC(query->bo, - I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, - PIPE_CONTROL_GLOBAL_GTT_WRITE | - 0); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); + if (intel->gen >= 6) { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_WRITE_TIMESTAMP); + OUT_RELOC(query->bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + 0); + OUT_BATCH(0); + ADVANCE_BATCH(); + + } else { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL | + PIPE_CONTROL_WRITE_TIMESTAMP); + OUT_RELOC(query->bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + 0); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } } else { /* Reset our driver's tracking of query state. */ drm_intel_bo_unreference(query->bo); @@ -140,16 +153,29 @@ brw_end_query(GLcontext *ctx, struct gl_query_object *q) struct brw_query_object *query = (struct brw_query_object *)q; if (query->Base.Target == GL_TIME_ELAPSED_EXT) { - BEGIN_BATCH(4); - OUT_BATCH(_3DSTATE_PIPE_CONTROL | - PIPE_CONTROL_WRITE_TIMESTAMP); - OUT_RELOC(query->bo, - I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, - PIPE_CONTROL_GLOBAL_GTT_WRITE | - 8); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); + if (intel->gen >= 6) { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_WRITE_TIMESTAMP); + OUT_RELOC(query->bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + 8); + OUT_BATCH(0); + ADVANCE_BATCH(); + + } else { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL | + PIPE_CONTROL_WRITE_TIMESTAMP); + OUT_RELOC(query->bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + 8); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } intel_batchbuffer_flush(intel->batch); } else { @@ -223,22 +249,43 @@ brw_emit_query_begin(struct brw_context *brw) if (!query || brw->query.active) return; - BEGIN_BATCH(4); - OUT_BATCH(_3DSTATE_PIPE_CONTROL | - PIPE_CONTROL_DEPTH_STALL | - PIPE_CONTROL_WRITE_DEPTH_COUNT); - /* This object could be mapped cacheable, but we don't have an exposed - * mechanism to support that. Since it's going uncached, tell GEM that - * we're writing to it. The usual clflush should be all that's required - * to pick up the results. - */ - OUT_RELOC(brw->query.bo, - I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, - PIPE_CONTROL_GLOBAL_GTT_WRITE | - ((brw->query.index * 2) * sizeof(uint64_t))); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); + if (intel->gen >= 6) { + BEGIN_BATCH(8); + + /* workaround: CS stall required before depth stall. */ + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_CS_STALL); + OUT_BATCH(0); /* write address */ + OUT_BATCH(0); /* write data */ + + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_DEPTH_STALL | + PIPE_CONTROL_WRITE_DEPTH_COUNT); + OUT_RELOC(brw->query.bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + ((brw->query.index * 2) * sizeof(uint64_t))); + OUT_BATCH(0); + ADVANCE_BATCH(); + + } else { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL | + PIPE_CONTROL_DEPTH_STALL | + PIPE_CONTROL_WRITE_DEPTH_COUNT); + /* This object could be mapped cacheable, but we don't have an exposed + * mechanism to support that. Since it's going uncached, tell GEM that + * we're writing to it. The usual clflush should be all that's required + * to pick up the results. + */ + OUT_RELOC(brw->query.bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + ((brw->query.index * 2) * sizeof(uint64_t))); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } if (query->bo != brw->query.bo) { if (query->bo != NULL) @@ -260,17 +307,37 @@ brw_emit_query_end(struct brw_context *brw) if (!brw->query.active) return; - BEGIN_BATCH(4); - OUT_BATCH(_3DSTATE_PIPE_CONTROL | - PIPE_CONTROL_DEPTH_STALL | - PIPE_CONTROL_WRITE_DEPTH_COUNT); - OUT_RELOC(brw->query.bo, - I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, - PIPE_CONTROL_GLOBAL_GTT_WRITE | - ((brw->query.index * 2 + 1) * sizeof(uint64_t))); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); + if (intel->gen >= 6) { + BEGIN_BATCH(8); + /* workaround: CS stall required before depth stall. */ + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_CS_STALL); + OUT_BATCH(0); /* write address */ + OUT_BATCH(0); /* write data */ + + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_DEPTH_STALL | + PIPE_CONTROL_WRITE_DEPTH_COUNT); + OUT_RELOC(brw->query.bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + ((brw->query.index * 2 + 1) * sizeof(uint64_t))); + OUT_BATCH(0); + ADVANCE_BATCH(); + + } else { + BEGIN_BATCH(4); + OUT_BATCH(_3DSTATE_PIPE_CONTROL | + PIPE_CONTROL_DEPTH_STALL | + PIPE_CONTROL_WRITE_DEPTH_COUNT); + OUT_RELOC(brw->query.bo, + I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, + PIPE_CONTROL_GLOBAL_GTT_WRITE | + ((brw->query.index * 2 + 1) * sizeof(uint64_t))); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } brw->query.active = GL_FALSE; brw->query.index++; -- 2.30.2