[v3 11/19] drm/i915: Remove i915_reg.h from i9xx_wm.c

[Uma Shankar <uma.shankar@intel.com>]

Move FW_BLC_SELF to common header to make i9xx_wm.c
free from i915_reg.h include. Introduce a common
intel_gmd_misc_regs.h to define common miscellaneous
register definitions across graphics and display.

v2: Introdue a common misc header for GMD

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/i9xx_wm.c        |  2 +-
 .../gpu/drm/i915/display/intel_display_regs.h |  8 ++++++-
 drivers/gpu/drm/i915/i915_reg.h               | 20 +-----------------
 include/drm/intel/intel_gmd_misc_regs.h       | 21 +++++++++++++++++++
 4 files changed, 30 insertions(+), 21 deletions(-)
 create mode 100644 include/drm/intel/intel_gmd_misc_regs.h

diff --git a/drivers/gpu/drm/i915/display/i9xx_wm.c b/drivers/gpu/drm/i915/display/i9xx_wm.c
index 39dfceb438ae..24f898efa9dd 100644
--- a/drivers/gpu/drm/i915/display/i9xx_wm.c
+++ b/drivers/gpu/drm/i915/display/i9xx_wm.c
@@ -6,8 +6,8 @@
 #include <linux/iopoll.h>
 
 #include <drm/drm_print.h>
+#include <drm/intel/intel_gmd_misc_regs.h>
 
-#include "i915_reg.h"
 #include "i9xx_wm.h"
 #include "i9xx_wm_regs.h"
 #include "intel_atomic.h"
diff --git a/drivers/gpu/drm/i915/display/intel_display_regs.h b/drivers/gpu/drm/i915/display/intel_display_regs.h
index 0164dcbb709f..680020e590cb 100644
--- a/drivers/gpu/drm/i915/display/intel_display_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_display_regs.h
@@ -4,6 +4,7 @@
 #ifndef __INTEL_DISPLAY_REGS_H__
 #define __INTEL_DISPLAY_REGS_H__
 
+#include <drm/intel/intel_gmd_misc_regs.h>
 #include "intel_display_reg_defs.h"
 
 #define GU_CNTL_PROTECTED		_MMIO(0x10100C)
@@ -3119,6 +3120,11 @@ enum skl_power_gate {
 #define   MTL_TRAS_MASK			REG_GENMASK(16, 8)
 #define   MTL_TRDPRE_MASK		REG_GENMASK(7, 0)
 
-
+#define FW_BLC		_MMIO(0x20d8)
+#define FW_BLC2		_MMIO(0x20dc)
+#define FW_BLC_SELF	_MMIO(0x20e0) /* 915+ only */
+#define   FW_BLC_SELF_EN_MASK      REG_BIT(31)
+#define   FW_BLC_SELF_FIFO_MASK    REG_BIT(16) /* 945 only */
+#define   FW_BLC_SELF_EN           REG_BIT(15) /* 945 only */
 
 #endif /* __INTEL_DISPLAY_REGS_H__ */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 6cb72e6e9086..b4b749e52b5b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -26,6 +26,7 @@
 #define _I915_REG_H_
 
 #include <drm/intel/intel_pcode.h>
+#include <drm/intel/intel_gmd_misc_regs.h>
 #include "i915_reg_defs.h"
 #include "display/intel_display_reg_defs.h"
 
@@ -394,24 +395,10 @@
 
 #define GEN2_ERROR_REGS		I915_ERROR_REGS(EMR, EIR)
 
-#define INSTPM	        _MMIO(0x20c0)
-#define   INSTPM_SELF_EN (1 << 12) /* 915GM only */
-#define   INSTPM_AGPBUSY_INT_EN (1 << 11) /* gen3: when disabled, pending interrupts
-					will not assert AGPBUSY# and will only
-					be delivered when out of C3. */
-#define   INSTPM_FORCE_ORDERING				(1 << 7) /* GEN6+ */
-#define   INSTPM_TLB_INVALIDATE	(1 << 9)
-#define   INSTPM_SYNC_FLUSH	(1 << 5)
 #define MEM_MODE	_MMIO(0x20cc)
 #define   MEM_DISPLAY_B_TRICKLE_FEED_DISABLE (1 << 3) /* 830 only */
 #define   MEM_DISPLAY_A_TRICKLE_FEED_DISABLE (1 << 2) /* 830/845 only */
 #define   MEM_DISPLAY_TRICKLE_FEED_DISABLE (1 << 2) /* 85x only */
-#define FW_BLC		_MMIO(0x20d8)
-#define FW_BLC2		_MMIO(0x20dc)
-#define FW_BLC_SELF	_MMIO(0x20e0) /* 915+ only */
-#define   FW_BLC_SELF_EN_MASK      REG_BIT(31)
-#define   FW_BLC_SELF_FIFO_MASK    REG_BIT(16) /* 945 only */
-#define   FW_BLC_SELF_EN           REG_BIT(15) /* 945 only */
 #define MM_BURST_LENGTH     0x00700000
 #define MM_FIFO_WATERMARK   0x0001F000
 #define LM_BURST_LENGTH     0x00000700
@@ -834,11 +821,6 @@
 #define   KVM_CONFIG_CHANGE_NOTIFICATION_SELECT	REG_BIT(14)
 
 
-#define DISP_ARB_CTL	_MMIO(0x45000)
-#define   DISP_FBC_MEMORY_WAKE		REG_BIT(31)
-#define   DISP_TILE_SURFACE_SWIZZLING	REG_BIT(13)
-#define   DISP_FBC_WM_DIS		REG_BIT(15)
-
 #define GEN8_CHICKEN_DCPR_1			_MMIO(0x46430)
 #define   _LATENCY_REPORTING_REMOVED_PIPE_D	REG_BIT(31)
 #define   SKL_SELECT_ALTERNATE_DC_EXIT		REG_BIT(30)
diff --git a/include/drm/intel/intel_gmd_misc_regs.h b/include/drm/intel/intel_gmd_misc_regs.h
new file mode 100644
index 000000000000..377f4e383699
--- /dev/null
+++ b/include/drm/intel/intel_gmd_misc_regs.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2026 Intel Corporation */
+
+#ifndef _INTEL_GMD_MISC_REG_H_
+#define _INTEL_GMD_MISC_REG_H_
+
+#define DISP_ARB_CTL	_MMIO(0x45000)
+#define   DISP_FBC_MEMORY_WAKE		REG_BIT(31)
+#define   DISP_TILE_SURFACE_SWIZZLING	REG_BIT(13)
+#define   DISP_FBC_WM_DIS		REG_BIT(15)
+
+#define INSTPM	        _MMIO(0x20c0)
+#define   INSTPM_SELF_EN (1 << 12) /* 915GM only */
+#define   INSTPM_AGPBUSY_INT_EN (1 << 11) /* gen3: when disabled, pending interrupts
+					will not assert AGPBUSY# and will only
+					be delivered when out of C3. */
+#define   INSTPM_FORCE_ORDERING				(1 << 7) /* GEN6+ */
+#define   INSTPM_TLB_INVALIDATE	(1 << 9)
+#define   INSTPM_SYNC_FLUSH	(1 << 5)
+
+#endif
-- 
2.50.1