drm/i915/tgl: Add definitions for VRR registers and bits

Add definitions for registers grouped under Transcoder VRR function
with necessary bitfields.

Bspec: 49268

v2: Use REG_GENMASK, correct tabs/space indentation and move the
definitions near the transcoder section.(Jani)

v3: Remove unnecessary prefix from bit/mask definitions.(Manasi)

v4: Use 'trans' in macro for better readability.(Manasi)

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200319015941.28008-1-aditya.swarup@intel.com

drivers/gpu/drm/i915/i915_reg.h

@@ -4324,6 +4324,96 @@ enum {
 #define   EXITLINE_MASK		REG_GENMASK(12, 0)
 #define   EXITLINE_SHIFT	0
 
+/* VRR registers */
+#define _TRANS_VRR_CTL_A		0x60420
+#define _TRANS_VRR_CTL_B		0x61420
+#define _TRANS_VRR_CTL_C		0x62420
+#define _TRANS_VRR_CTL_D		0x63420
+#define TRANS_VRR_CTL(trans)		_MMIO_TRANS2(trans, _TRANS_VRR_CTL_A)
+#define   VRR_CTL_VRR_ENABLE		REG_BIT(31)
+#define   VRR_CTL_IGN_MAX_SHIFT		REG_BIT(30)
+#define   VRR_CTL_FLIP_LINE_EN		REG_BIT(29)
+#define   VRR_CTL_LINE_COUNT_MASK	REG_GENMASK(10, 3)
+#define   VRR_CTL_SW_FULLLINE_COUNT	REG_BIT(0)
+
+#define _TRANS_VRR_VMAX_A		0x60424
+#define _TRANS_VRR_VMAX_B		0x61424
+#define _TRANS_VRR_VMAX_C		0x62424
+#define _TRANS_VRR_VMAX_D		0x63424
+#define TRANS_VRR_VMAX(trans)		_MMIO_TRANS2(trans, _TRANS_VRR_VMAX_A)
+#define   VRR_VMAX_MASK			REG_GENMASK(19, 0)
+
+#define _TRANS_VRR_VMIN_A		0x60434
+#define _TRANS_VRR_VMIN_B		0x61434
+#define _TRANS_VRR_VMIN_C		0x62434
+#define _TRANS_VRR_VMIN_D		0x63434
+#define TRANS_VRR_VMIN(trans)		_MMIO_TRANS2(trans, _TRANS_VRR_VMIN_A)
+#define   VRR_VMIN_MASK			REG_GENMASK(15, 0)
+
+#define _TRANS_VRR_VMAXSHIFT_A		0x60428
+#define _TRANS_VRR_VMAXSHIFT_B		0x61428
+#define _TRANS_VRR_VMAXSHIFT_C		0x62428
+#define _TRANS_VRR_VMAXSHIFT_D		0x63428
+#define TRANS_VRR_VMAXSHIFT(trans)	_MMIO_TRANS2(trans, \
+					_TRANS_VRR_VMAXSHIFT_A)
+#define   VRR_VMAXSHIFT_DEC_MASK	REG_GENMASK(29, 16)
+#define   VRR_VMAXSHIFT_DEC		REG_BIT(16)
+#define   VRR_VMAXSHIFT_INC_MASK	REG_GENMASK(12, 0)
+
+#define _TRANS_VRR_STATUS_A		0x6042C
+#define _TRANS_VRR_STATUS_B		0x6142C
+#define _TRANS_VRR_STATUS_C		0x6242C
+#define _TRANS_VRR_STATUS_D		0x6342C
+#define TRANS_VRR_STATUS(trans)		_MMIO_TRANS2(trans, _TRANS_VRR_STATUS_A)
+#define   VRR_STATUS_VMAX_REACHED	REG_BIT(31)
+#define   VRR_STATUS_NOFLIP_TILL_BNDR	REG_BIT(30)
+#define   VRR_STATUS_FLIP_BEF_BNDR	REG_BIT(29)
+#define   VRR_STATUS_NO_FLIP_FRAME	REG_BIT(28)
+#define   VRR_STATUS_VRR_EN_LIVE	REG_BIT(27)
+#define   VRR_STATUS_FLIPS_SERVICED	REG_BIT(26)
+#define   VRR_STATUS_VBLANK_MASK	REG_GENMASK(22, 20)
+#define   STATUS_FSM_IDLE		REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 0)
+#define   STATUS_FSM_WAIT_TILL_FDB	REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 1)
+#define   STATUS_FSM_WAIT_TILL_FS	REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 2)
+#define   STATUS_FSM_WAIT_TILL_FLIP	REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 3)
+#define   STATUS_FSM_PIPELINE_FILL	REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 4)
+#define   STATUS_FSM_ACTIVE		REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 5)
+#define   STATUS_FSM_LEGACY_VBLANK	REG_FIELD_PREP(VRR_STATUS_VBLANK_MASK, 6)
+
+#define _TRANS_VRR_VTOTAL_PREV_A	0x60480
+#define _TRANS_VRR_VTOTAL_PREV_B	0x61480
+#define _TRANS_VRR_VTOTAL_PREV_C	0x62480
+#define _TRANS_VRR_VTOTAL_PREV_D	0x63480
+#define TRANS_VRR_VTOTAL_PREV(trans)	_MMIO_TRANS2(trans, \
+					_TRANS_VRR_VTOTAL_PREV_A)
+#define   VRR_VTOTAL_FLIP_BEFR_BNDR	REG_BIT(31)
+#define   VRR_VTOTAL_FLIP_AFTER_BNDR	REG_BIT(30)
+#define   VRR_VTOTAL_FLIP_AFTER_DBLBUF	REG_BIT(29)
+#define   VRR_VTOTAL_PREV_FRAME_MASK	REG_GENMASK(19, 0)
+
+#define _TRANS_VRR_FLIPLINE_A		0x60438
+#define _TRANS_VRR_FLIPLINE_B		0x61438
+#define _TRANS_VRR_FLIPLINE_C		0x62438
+#define _TRANS_VRR_FLIPLINE_D		0x63438
+#define TRANS_VRR_FLIPLINE(trans)	_MMIO_TRANS2(trans, \
+					_TRANS_VRR_FLIPLINE_A)
+#define   VRR_FLIPLINE_MASK		REG_GENMASK(19, 0)
+
+#define _TRANS_VRR_STATUS2_A		0x6043C
+#define _TRANS_VRR_STATUS2_B		0x6143C
+#define _TRANS_VRR_STATUS2_C		0x6243C
+#define _TRANS_VRR_STATUS2_D		0x6343C
+#define TRANS_VRR_STATUS2(trans)	_MMIO_TRANS2(trans, _TRANS_VRR_STATUS2_A)
+#define   VRR_STATUS2_VERT_LN_CNT_MASK	REG_GENMASK(19, 0)
+
+#define _TRANS_PUSH_A			0x60A70
+#define _TRANS_PUSH_B			0x61A70
+#define _TRANS_PUSH_C			0x62A70
+#define _TRANS_PUSH_D			0x63A70
+#define TRANS_PUSH(trans)		_MMIO_TRANS2(trans, _TRANS_PUSH_A)
+#define   TRANS_PUSH_EN			REG_BIT(31)
+#define   TRANS_PUSH_SEND		REG_BIT(30)
+
 /*
  * HSW+ eDP PSR registers
  *