[Intel-gfx] [PATCH] [trivial] drm/i915: Convert straggling MCHBAR registers

[Ben Widawsky]

All our registers which are written through the MCHBAR are defined
descriptively as an offset to the MCHBAR. We had 3 outliers here.
Convert these as well so all registers which are offsets are MCHBAR can
be easily identified/found within the code.

With this, convert DCLK to also follow this format.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_reg.h | 8 ++++----
 drivers/gpu/drm/i915/intel_pm.c | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2b4f7b1..6c98238 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1480,7 +1480,7 @@
 #define MCHBAR_MIRROR_BASE_SNB	0x140000
 
 /* Memory controller frequency in MCHBAR for Haswell (possible SNB+) */
-#define DCLK 0x5e04
+#define DCLK (MCHBAR_MIRROR_BASE_SNB + 0x5e04)
 
 /** 915-945 and GM965 MCH register controlling DRAM channel access */
 #define DCC			0x10200
@@ -1775,9 +1775,9 @@
 #define GEN6_GT_THREAD_STATUS_CORE_MASK 0x7
 #define GEN6_GT_THREAD_STATUS_CORE_MASK_HSW (0x7 | (0x07 << 16))
 
-#define GEN6_GT_PERF_STATUS	0x145948
-#define GEN6_RP_STATE_LIMITS	0x145994
-#define GEN6_RP_STATE_CAP	0x145998
+#define GEN6_GT_PERF_STATUS	(MCHBAR_MIRROR_BASE_SNB + 0x5948)
+#define GEN6_RP_STATE_LIMITS	(MCHBAR_MIRROR_BASE_SNB + 0x5994)
+#define GEN6_RP_STATE_CAP	(MCHBAR_MIRROR_BASE_SNB + 0x5998)
 
 /*
  * Logical Context regs
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3e140ab..d4dd543 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3915,7 +3915,7 @@ void gen6_update_ring_freq(struct drm_device *dev)
 	/* Convert from kHz to MHz */
 	max_ia_freq /= 1000;
 
-	min_ring_freq = I915_READ(MCHBAR_MIRROR_BASE_SNB + DCLK) & 0xf;
+	min_ring_freq = I915_READ(DCLK) & 0xf;
 	/* convert DDR frequency from units of 266.6MHz to bandwidth */
 	min_ring_freq = mult_frac(min_ring_freq, 8, 3);
 
-- 
1.8.4.1