drm/i915: Relocate RING_FAULT bits

We share the bit definitions between the older
RING_FAULT registers and their various gen12+
counterparts. Currently the bits are defined next
to the new registers which isn't what we typically do.

Move the bit definitions next the older register offsets,
and leave breadcrumbs around the gen12+ registers to make
it easier to find the right bits.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211231941.22769-3-ville.syrjala@linux.intel.com

Author: vsyrjala

drivers/gpu/drm/i915/gt/intel_gt_regs.h

@@ -326,6 +326,11 @@
 							    _RING_FAULT_REG_VCS, \
 							    _RING_FAULT_REG_VECS, \
 							    _RING_FAULT_REG_BCS))
+#define   GEN8_RING_FAULT_ENGINE_ID(x)		(((x) >> 12) & 0x1f)
+#define   RING_FAULT_GTTSEL_MASK		(1 << 11)
+#define   RING_FAULT_SRCID(x)			(((x) >> 3) & 0xff)
+#define   RING_FAULT_FAULT_TYPE(x)		(((x) >> 1) & 0x3)
+#define   RING_FAULT_VALID			(1 << 0)
 
 #define ERROR_GEN6				_MMIO(0x40a0)
 
@@ -385,6 +390,8 @@
 
 #define GEN8_FAULT_TLB_DATA0			_MMIO(0x4b10)
 #define GEN8_FAULT_TLB_DATA1			_MMIO(0x4b14)
+#define   FAULT_GTT_SEL				(1 << 4)
+#define   FAULT_VA_HIGH_BITS			(0xf << 0)
 
 #define GEN11_GACB_PERF_CTRL			_MMIO(0x4b80)
 #define   GEN11_HASH_CTRL_MASK			(0x3 << 12 | 0xf << 0)
@@ -1038,17 +1045,12 @@
 #define XEHP_FAULT_TLB_DATA0			MCR_REG(0xceb8)
 #define GEN12_FAULT_TLB_DATA1			_MMIO(0xcebc)
 #define XEHP_FAULT_TLB_DATA1			MCR_REG(0xcebc)
-#define   FAULT_VA_HIGH_BITS			(0xf << 0)
-#define   FAULT_GTT_SEL				(1 << 4)
+/* see GEN8_FAULT_TLB_DATA0/1 */
 
 #define GEN12_RING_FAULT_REG			_MMIO(0xcec4)
 #define XEHP_RING_FAULT_REG			MCR_REG(0xcec4)
 #define XELPMP_RING_FAULT_REG			_MMIO(0xcec4)
-#define   GEN8_RING_FAULT_ENGINE_ID(x)		(((x) >> 12) & 0x1f)
-#define   RING_FAULT_GTTSEL_MASK		(1 << 11)
-#define   RING_FAULT_SRCID(x)			(((x) >> 3) & 0xff)
-#define   RING_FAULT_FAULT_TYPE(x)		(((x) >> 1) & 0x3)
-#define   RING_FAULT_VALID			(1 << 0)
+/* see GEN8_RING_FAULT_REG */
 
 #define GEN12_GFX_TLB_INV_CR			_MMIO(0xced8)
 #define XEHP_GFX_TLB_INV_CR			MCR_REG(0xced8)