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authorChris Wilson <chris@chris-wilson.co.uk>2020-05-04 14:51:49 +0200
committerChris Wilson <chris@chris-wilson.co.uk>2020-05-04 15:28:48 +0200
commitf5b62bdbb6262de1c46205cd4167b4e90cb0d4cf (patch)
tree6661421cbae9634b29972d6a1a5aa10165b27683 /drivers/gpu/drm/i915/gem
parentdrm/i915: Allow some leniency in PCU reads (diff)
downloadlinux-f5b62bdbb6262de1c46205cd4167b4e90cb0d4cf.tar.xz
linux-f5b62bdbb6262de1c46205cd4167b4e90cb0d4cf.zip
drm/i915/gem: Specify address type for chained reloc batches
It is required that a chained batch be in the same address domain as its parent, and also that must be specified in the command for earlier gen as it is not inferred from the chaining until gen6. Fixes: 964a9b0f611e ("drm/i915/gem: Use chained reloc batches") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200504125149.4396-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gem')
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index cce7df231cb9..1c247ad0971a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -1004,14 +1004,14 @@ static int reloc_gpu_chain(struct reloc_cache *cache)
GEM_BUG_ON(cache->rq_size + RELOC_TAIL > PAGE_SIZE / sizeof(u32));
cmd = cache->rq_cmd + cache->rq_size;
*cmd++ = MI_ARB_CHECK;
- if (cache->gen >= 8) {
+ if (cache->gen >= 8)
*cmd++ = MI_BATCH_BUFFER_START_GEN8;
- *cmd++ = lower_32_bits(batch->node.start);
- *cmd++ = upper_32_bits(batch->node.start);
- } else {
+ else if (cache->gen >= 6)
*cmd++ = MI_BATCH_BUFFER_START;
- *cmd++ = lower_32_bits(batch->node.start);
- }
+ else
+ *cmd++ = MI_BATCH_BUFFER_START | MI_BATCH_GTT;
+ *cmd++ = lower_32_bits(batch->node.start);
+ *cmd++ = upper_32_bits(batch->node.start); /* Always 0 for gen<8 */
i915_gem_object_flush_map(cache->rq_vma->obj);
i915_gem_object_unpin_map(cache->rq_vma->obj);
cache->rq_vma = NULL;