Merge tag 'regulator-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / drivers / gpu / drm / etnaviv / etnaviv_buffer.c

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index cb86c7e..d923013 100644 (file)
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -329,20 +329,34 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
        /*
         * Append a LINK to the submitted command buffer to return to
         * the ring buffer.  return_target is the ring target address.
-        * We need three dwords: event, wait, link.
+        * We need at most 7 dwords in the return target: 2 cache flush +
+        * 2 semaphore stall + 1 event + 1 wait + 1 link.
         */
-       return_dwords = 3;
+       return_dwords = 7;
        return_target = etnaviv_buffer_reserve(gpu, buffer, return_dwords);
        CMD_LINK(cmdbuf, return_dwords, return_target);
 
        /*
-        * Append event, wait and link pointing back to the wait
-        * command to the ring buffer.
+        * Append a cache flush, stall, event, wait and link pointing back to
+        * the wait command to the ring buffer.
         */
+       if (gpu->exec_state == ETNA_PIPE_2D) {
+               CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE,
+                                      VIVS_GL_FLUSH_CACHE_PE2D);
+       } else {
+               CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE,
+                                      VIVS_GL_FLUSH_CACHE_DEPTH |
+                                      VIVS_GL_FLUSH_CACHE_COLOR);
+               CMD_LOAD_STATE(buffer, VIVS_TS_FLUSH_CACHE,
+                                      VIVS_TS_FLUSH_CACHE_FLUSH);
+       }
+       CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE);
+       CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE);
        CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) |
                       VIVS_GL_EVENT_FROM_PE);
        CMD_WAIT(buffer);
-       CMD_LINK(buffer, 2, return_target + 8);
+       CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) +
+                           buffer->user_size - 4);
 
        if (drm_debug & DRM_UT_DRIVER)
                pr_info("stream link to 0x%08x @ 0x%08x %p\n",