From e45213d89bf26c68c9f4c9074eaec9ab3311de7d Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Sat, 31 Jan 2009 01:59:57 +1000
Subject: r200/r300: add aperture space checks

---
 src/mesa/drivers/dri/radeon/radeon_cs_legacy.c | 104 ++++++++++++++++++++++++-
 1 file changed, 102 insertions(+), 2 deletions(-)

(limited to 'src/mesa/drivers/dri/radeon/radeon_cs_legacy.c')

diff --git a/src/mesa/drivers/dri/radeon/radeon_cs_legacy.c b/src/mesa/drivers/dri/radeon/radeon_cs_legacy.c
index 8997187d62..171818db37 100644
--- a/src/mesa/drivers/dri/radeon/radeon_cs_legacy.c
+++ b/src/mesa/drivers/dri/radeon/radeon_cs_legacy.c
@@ -315,7 +315,7 @@ static int cs_emit(struct radeon_cs *cs)
         cmd.boxes = (drm_clip_rect_t *) csm->ctx->pClipRects;
     }
 
-    dump_cmdbuf(cs);
+    //    dump_cmdbuf(cs);
 
     r = drmCommandWrite(cs->csm->fd, DRM_RADEON_CMDBUF, &cmd, sizeof(cmd));
     if (r) {
@@ -330,6 +330,10 @@ static int cs_emit(struct radeon_cs *cs)
 	}
     }
     cs_set_age(cs);
+
+    cs->csm->read_used = 0;
+    cs->csm->vram_write_used = 0;
+    cs->csm->gart_write_used = 0;
     return 0;
 }
 
@@ -374,6 +378,101 @@ static void cs_print(struct radeon_cs *cs, FILE *file)
 {
 }
 
+static int cs_check_space(struct radeon_cs *cs, struct radeon_cs_space_check *bos, int num_bo)
+{
+    struct radeon_cs_manager *csm = cs->csm;
+    int this_op_read = 0, this_op_gart_write = 0, this_op_vram_write = 0;
+    uint32_t read_domains, write_domain;
+    int i;
+    struct radeon_bo *bo;
+
+    /* check the totals for this operation */
+
+    if (num_bo == 0)
+        return 0;
+
+    /* prepare */
+    for (i = 0; i < num_bo; i++) {
+      bo = bos[i].bo;
+
+      bos[i].new_accounted = 0;
+      read_domains = bos[i].read_domains;
+      write_domain = bos[i].write_domain;
+		
+      /* pinned bos don't count */
+      if (radeon_legacy_bo_is_static(bo))
+	  continue;
+ 
+      /* already accounted this bo */
+      if (write_domain && (write_domain == bo->space_accounted))
+	  continue;
+
+      if (read_domains && ((read_domains << 16) == bo->space_accounted))
+	  continue;
+      
+      if (bo->space_accounted == 0) {
+	  if (write_domain == RADEON_GEM_DOMAIN_VRAM)
+	      this_op_vram_write += bo->size;
+	  else if (write_domain == RADEON_GEM_DOMAIN_GTT)
+	      this_op_gart_write += bo->size;
+	  else
+	      this_op_read += bo->size;
+	  bos[i].new_accounted = (read_domains << 16) | write_domain;
+      } else {
+	  uint16_t old_read, old_write;
+	  
+	  old_read = bo->space_accounted >> 16;
+	  old_write = bo->space_accounted & 0xffff;
+
+	  if (write_domain && (old_read & write_domain)) {
+	      bos[i].new_accounted = write_domain;
+	      /* moving from read to a write domain */
+	      if (write_domain == RADEON_GEM_DOMAIN_VRAM) {
+		  this_op_read -= bo->size;
+		  this_op_vram_write += bo->size;
+	      } else if (write_domain == RADEON_GEM_DOMAIN_VRAM) {
+		  this_op_read -= bo->size;
+		  this_op_gart_write += bo->size;
+	      }
+	  } else if (read_domains & old_write) {
+	      bos[i].new_accounted = bo->space_accounted & 0xffff;
+	  } else {
+	      /* rewrite the domains */
+	      if (write_domain != old_write)
+		  fprintf(stderr,"WRITE DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, write_domain, old_write);
+	      if (read_domains != old_read)
+		  fprintf(stderr,"READ DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, read_domains, old_read);
+	      return RADEON_CS_SPACE_FLUSH;
+	  }
+      }
+	}
+	
+	if (this_op_read < 0)
+		this_op_read = 0;
+
+	/* check sizes - operation first */
+	if ((this_op_read + this_op_gart_write > csm->gart_limit) ||
+	    (this_op_vram_write > csm->vram_limit)) {
+	    return RADEON_CS_SPACE_OP_TO_BIG;
+	}
+
+	if (((csm->vram_write_used + this_op_vram_write) > csm->vram_limit) ||
+	    ((csm->read_used + csm->gart_write_used + this_op_gart_write + this_op_read) > csm->gart_limit)) {
+		return RADEON_CS_SPACE_FLUSH;
+	}
+
+	csm->gart_write_used += this_op_gart_write;
+	csm->vram_write_used += this_op_vram_write;
+	csm->read_used += this_op_read;
+	/* commit */
+	for (i = 0; i < num_bo; i++) {
+		bo = bos[i].bo;
+		bo->space_accounted = bos[i].new_accounted;
+	}
+
+	return RADEON_CS_SPACE_OK;
+}
+
 static struct radeon_cs_funcs  radeon_cs_legacy_funcs = {
     cs_create,
     cs_write_dword,
@@ -384,7 +483,8 @@ static struct radeon_cs_funcs  radeon_cs_legacy_funcs = {
     cs_destroy,
     cs_erase,
     cs_need_flush,
-    cs_print
+    cs_print,
+    cs_check_space
 };
 
 struct radeon_cs_manager *radeon_cs_manager_legacy_ctor(struct radeon_context *ctx)
-- 
cgit v1.2.3