[Intel-gfx] [PATCH 01/12] drm/i915: add more clock gating regs for gen7, make sure writes happen

[Jesse Barnes]

Add a few regs needed for various clock gating init purposes and make
sure they don't fall into the display offset range on VLV.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/i915_drv.c |   17 +++++++++++++++++
 drivers/gpu/drm/i915/i915_reg.h |   11 +++++++++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a7837e5..205f61c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1128,6 +1128,23 @@ static bool IS_DISPLAYREG(u32 reg)
 	if (reg == GEN6_GDRST)
 		return false;
 
+	switch (reg) {
+	case _3D_CHICKEN3:
+	case IVB_CHICKEN3:
+	case GEN7_HALF_SLICE_CHICKEN1:
+	case GEN7_COMMON_SLICE_CHICKEN1:
+	case GEN7_L3CNTLREG1:
+	case GEN7_L3_CHICKEN_MODE_REGISTER:
+	case GEN7_ROW_CHICKEN2:
+	case GEN7_L3SQCREG4:
+	case GEN7_SQ_CHICKEN_MBCUNIT_CONFIG:
+	case GEN6_MBCTL:
+	case GEN6_UCGCTL2:
+	case GEN7_UCGCTL4:
+		return false;
+	default:
+		break;
+	}
 	return true;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a828e90..7d133a1 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -544,6 +544,8 @@
 #define IIR		0x020a4
 #define IMR		0x020a8
 #define ISR		0x020ac
+#define VLV_GUNIT_CLOCK_GATE	0x182060
+#define   GCFG_DIS		(1<<8)
 #define VLV_IIR_RW	0x182084
 #define VLV_IER		0x1820a0
 #define VLV_IIR		0x1820a4
@@ -4244,6 +4246,15 @@
 #define GEN7_L3LOG_BASE			0xB070
 #define GEN7_L3LOG_SIZE			0x80
 
+#define GEN7_HALF_SLICE_CHICKEN1	0xe100 /* IVB GT1 + VLV */
+#define GEN7_HALF_SLICE_CHICKEN1_IVB	0xf100
+#define   GEN7_MAX_PS_THREAD_DEP		(8<<12)
+#define   GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE	(1<<3)
+
+#define GEN7_ROW_CHICKEN2		0xe4f4
+#define GEN7_ROW_CHICKEN2_GT2		0xf4f4
+#define   DOP_CLOCK_GATING_DISABLE	(1<<0)
+
 #define G4X_AUD_VID_DID			0x62020
 #define INTEL_AUDIO_DEVCL		0x808629FB
 #define INTEL_AUDIO_DEVBLC		0x80862801
-- 
1.7.9.5