WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
+ if (adev->ip_versions[HDP_HWIP][0] == IP_VERSION(4, 4, 0))
+ WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, READ_BUFFER_WATERMARK, 2);
+
WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8));
WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40));
}
#define HDP_MISC_CNTL__OUTSTANDING_WRITE_COUNT_1024__SHIFT 0x5
#define HDP_MISC_CNTL__MULTIPLE_READS__SHIFT 0x6
#define HDP_MISC_CNTL__SIMULTANEOUS_READS_WRITES__SHIFT 0xb
+#define HDP_MISC_CNTL__READ_BUFFER_WATERMARK__SHIFT 0xe
#define HDP_MISC_CNTL__FED_ENABLE__SHIFT 0x15
#define HDP_MISC_CNTL__SYSHUB_CHANNEL_PRIORITY__SHIFT 0x17
#define HDP_MISC_CNTL__MMHUB_WRBURST_ENABLE__SHIFT 0x18
#define HDP_MISC_CNTL__OUTSTANDING_WRITE_COUNT_1024_MASK 0x00000020L
#define HDP_MISC_CNTL__MULTIPLE_READS_MASK 0x00000040L
#define HDP_MISC_CNTL__SIMULTANEOUS_READS_WRITES_MASK 0x00000800L
+#define HDP_MISC_CNTL__READ_BUFFER_WATERMARK_MASK 0x0000c000L
#define HDP_MISC_CNTL__FED_ENABLE_MASK 0x00200000L
#define HDP_MISC_CNTL__SYSHUB_CHANNEL_PRIORITY_MASK 0x00800000L
#define HDP_MISC_CNTL__MMHUB_WRBURST_ENABLE_MASK 0x01000000L