#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
+#include <asm/cacheflush.h>
#include "hbm.h"
#include "client.h"
/* write msg to dma buf */
memcpy(msg_addr, cl_msg->send_buf.data, cl_msg->send_buf.size);
+ /*
+ * if current fw don't support cache snooping, driver have to
+ * flush the cache manually.
+ */
+ if (dev->ops->dma_no_cache_snooping &&
+ dev->ops->dma_no_cache_snooping(dev))
+ clflush_cache_range(msg_addr, cl_msg->send_buf.size);
+
/* send dma_xfer hbm msg */
off = msg_addr - (unsigned char *)dev->ishtp_host_dma_tx_buf;
ishtp_hbm_hdr(&hdr, sizeof(struct dma_xfer_hbm));
}
buffer = rb->buffer.data;
+
+ /*
+ * if current fw don't support cache snooping, driver have to
+ * flush the cache manually.
+ */
+ if (dev->ops->dma_no_cache_snooping &&
+ dev->ops->dma_no_cache_snooping(dev))
+ clflush_cache_range(msg, hbm->msg_length);
+
memcpy(buffer, msg, hbm->msg_length);
rb->buf_idx = hbm->msg_length;