Merge tag 'asoc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.13

The big news with this release is the of-graph card, this provides a
replacement for simple-card that is much more flexibile and scalable,
allowing many more systems to use a generic sound card than was possible
before:

 - The of-graph card, finally merged after a long and dedicated effort
   by Morimoto-san.
 - New widget types intended mainly for use with DSPs.
 - New drivers for Allwinner V3s SoCs, Ensonic ES8316, several classes
   of x86 machine, Rockchip PDM controllers, STM32 I2S and S/PDIF
   controllers and ZTE AUD96P22 CODECs.

1 files changed, 18 insertions, 5 deletions

diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index fe8df14b6169..e08598c70b3e 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -68,12 +68,25 @@ static inline struct page *dma_addr_to_page(struct device *dev,
  * systems and only the R10000 and R12000 are used in such systems, the
  * SGI IP28 Indigo² rsp. SGI IP32 aka O2.
  */
-static inline int cpu_needs_post_dma_flush(struct device *dev)
+static inline bool cpu_needs_post_dma_flush(struct device *dev)
 {
-	return !plat_device_is_coherent(dev) &&
-	       (boot_cpu_type() == CPU_R10000 ||
-		boot_cpu_type() == CPU_R12000 ||
-		boot_cpu_type() == CPU_BMIPS5000);
+	if (plat_device_is_coherent(dev))
+		return false;
+
+	switch (boot_cpu_type()) {
+	case CPU_R10000:
+	case CPU_R12000:
+	case CPU_BMIPS5000:
+		return true;
+
+	default:
+		/*
+		 * Presence of MAARs suggests that the CPU supports
+		 * speculatively prefetching data, and therefore requires
+		 * the post-DMA flush/invalidate.
+		 */
+		return cpu_has_maar;
+	}
 }
 
 static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)