Merge drm/drm-next into drm-intel-next

Catching up on 6.9-rc2

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 48 insertions, 1 deletions

diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index 2dc8ceb85374..17b8baf749e6 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -297,6 +297,49 @@ static void spi_mem_access_end(struct spi_mem *mem)
 		pm_runtime_put(ctlr->dev.parent);
 }
 
+static void spi_mem_add_op_stats(struct spi_statistics __percpu *pcpu_stats,
+				 const struct spi_mem_op *op, int exec_op_ret)
+{
+	struct spi_statistics *stats;
+	u64 len, l2len;
+
+	get_cpu();
+	stats = this_cpu_ptr(pcpu_stats);
+	u64_stats_update_begin(&stats->syncp);
+
+	/*
+	 * We do not have the concept of messages or transfers. Let's consider
+	 * that one operation is equivalent to one message and one transfer.
+	 */
+	u64_stats_inc(&stats->messages);
+	u64_stats_inc(&stats->transfers);
+
+	/* Use the sum of all lengths as bytes count and histogram value. */
+	len = op->cmd.nbytes + op->addr.nbytes;
+	len += op->dummy.nbytes + op->data.nbytes;
+	u64_stats_add(&stats->bytes, len);
+	l2len = min(fls(len), SPI_STATISTICS_HISTO_SIZE) - 1;
+	u64_stats_inc(&stats->transfer_bytes_histo[l2len]);
+
+	/* Only account for data bytes as transferred bytes. */
+	if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT)
+		u64_stats_add(&stats->bytes_tx, op->data.nbytes);
+	if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_IN)
+		u64_stats_add(&stats->bytes_rx, op->data.nbytes);
+
+	/*
+	 * A timeout is not an error, following the same behavior as
+	 * spi_transfer_one_message().
+	 */
+	if (exec_op_ret == -ETIMEDOUT)
+		u64_stats_inc(&stats->timedout);
+	else if (exec_op_ret)
+		u64_stats_inc(&stats->errors);
+
+	u64_stats_update_end(&stats->syncp);
+	put_cpu();
+}
+
 /**
  * spi_mem_exec_op() - Execute a memory operation
  * @mem: the SPI memory
@@ -339,8 +382,12 @@ int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 		 * read path) and expect the core to use the regular SPI
 		 * interface in other cases.
 		 */
-		if (!ret || ret != -ENOTSUPP || ret != -EOPNOTSUPP)
+		if (!ret || (ret != -ENOTSUPP && ret != -EOPNOTSUPP)) {
+			spi_mem_add_op_stats(ctlr->pcpu_statistics, op, ret);
+			spi_mem_add_op_stats(mem->spi->pcpu_statistics, op, ret);
+
 			return ret;
+		}
 	}
 
 	tmpbufsize = op->cmd.nbytes + op->addr.nbytes + op->dummy.nbytes;