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panfrost: Ignore BO start addr when adjusting src_offset

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BOs are guaranteed to be aligned on 4K which inherently guarantees the
64 byte alignment.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>
This commit is contained in:
Boris Brezillon 2020-03-05 19:26:03 +01:00
parent 128820b886
commit b692ab076a
1 changed files with 3 additions and 3 deletions
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6
src/gallium/drivers/panfrost/pan_context.c
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@ -225,15 +225,15 @@ panfrost_stage_attributes(struct panfrost_context *ctx)
for (unsigned i = 0; i < so->num_elements; ++i) {
unsigned vbi = so->pipe[i].vertex_buffer_index;
struct pipe_vertex_buffer *buf = &ctx->vertex_buffers[vbi];
struct panfrost_resource *rsrc = (struct panfrost_resource *) (buf->buffer.resource);
mali_ptr addr = rsrc->bo->gpu + buf->buffer_offset;
/* Adjust by the masked off bits of the offset. Make sure we
* read src_offset from so->hw (which is not GPU visible)
* rather than target (which is) due to caching effects */
unsigned src_offset = so->pipe[i].src_offset;
src_offset += (addr & 63);
/* BOs aligned to 4k so guaranteed aligned to 64 */
src_offset += (buf->buffer_offset & 63);
/* Also, somewhat obscurely per-instance data needs to be
* offset in response to a delayed start in an indexed draw */