[PATCH] drm/i915/gem: Remove gpu reloc workaround

Thomas Hellström thomas.hellstrom at linux.intel.com
Wed Oct 27 08:36:08 UTC 2021


GPU relocs are gone. There should be no need for this workaround anymore.
Remove it.

Signed-off-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>
---
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 1231224728e4..04af88e6d453 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -1327,7 +1327,6 @@ eb_relocate_entry(struct i915_execbuffer *eb,
 {
 	struct drm_i915_private *i915 = eb->i915;
 	struct eb_vma *target;
-	int err;
 
 	/* we've already hold a reference to all valid objects */
 	target = eb_get_vma(eb, reloc->target_handle);
@@ -1357,25 +1356,9 @@ eb_relocate_entry(struct i915_execbuffer *eb,
 		return -EINVAL;
 	}
 
-	if (reloc->write_domain) {
+	if (reloc->write_domain)
 		target->flags |= EXEC_OBJECT_WRITE;
 
-		/*
-		 * Sandybridge PPGTT errata: We need a global gtt mapping
-		 * for MI and pipe_control writes because the gpu doesn't
-		 * properly redirect them through the ppgtt for non_secure
-		 * batchbuffers.
-		 */
-		if (reloc->write_domain == I915_GEM_DOMAIN_INSTRUCTION &&
-		    GRAPHICS_VER(eb->i915) == 6) {
-			err = i915_vma_bind(target->vma,
-					    target->vma->obj->cache_level,
-					    PIN_GLOBAL, NULL);
-			if (err)
-				return err;
-		}
-	}
-
 	/*
 	 * If the relocation already has the right value in it, no
 	 * more work needs to be done.
-- 
2.31.1



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