[Intel-gfx] [PATCH 10/28] drm/i915/tgl: Add power well support

Lucas De Marchi lucas.demarchi at intel.com
Thu Jun 27 20:22:36 UTC 2019


On Thu, Jun 27, 2019 at 12:31:30PM -0700, Jose Souza wrote:
>On Tue, 2019-06-25 at 10:54 -0700, Lucas De Marchi wrote:
>> From: Imre Deak <imre.deak at intel.com>
>>
>> The patch adds the new power wells introduced by TGL (GEN 12) and
>> maps these to existing/new power domains. The changes for GEN 12 wrt
>> to GEN 11 are the following:
>>
>> - Transcoder#EDP removed from power well#1 (Transcoder#A used in
>>   low-power mode instead)
>> - Transcoder#A is now backed by power well#1 instead of power well#3
>> - The DDI#B/C combo PHY ports are now backed by power well#1 instead
>> of
>>   power well#3
>> - New power well#5 added for pipe#D functionality (TODO)
>> - 2 additional TC ports (TC#5-6) backed by power well#3, 2 port
>>   specific IO power wells (only for the non-TBT modes) and 4 port
>>   specific AUX power wells (2-2 for TBT vs. non-TBT modes)
>> - Power well#2 backs now VDSC/joining for pipe#A instead of VDSC for
>>   eDP and MIPI DSI (TODO)
>>
>> On TGL Port DDI#C changed to be a combo PHY (native DP/HDMI) and
>> BSpec has renamed ports DDI#D-F to TC#4-6 respectively. Thus on ICL
>> we
>> have the following naming for ports:
>>
>> - Combo PHYs (native DP/HDMI):
>>   DDI#A-B
>> - TBT/non-TBT (TC altmode, native DP/HDMI) PHYs:
>>   DDI#C-F
>>
>> Starting from GEN 12 we have the following naming for ports:
>> - Combo PHYs (native DP/HDMI):
>>   DDI#A-C
>> - TBT/non-TBT (TC altmode, native DP/HDMI) PHYs:
>>   DDI TC#1-6
>>
>> To save some space in the power domain enum the power domain naming
>> in
>> the driver reflects the above change, that is power domains TC#1-3
>> are
>> added as aliases for DDI#D-F and new power domains are reserved for
>> TC#4-6.
>>
>> Cc: Anusha Srivatsa <anusha.srivatsa at intel.com>
>> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Cc: José Roberto de Souza <jose.souza at intel.com>
>> Signed-off-by: Imre Deak <imre.deak at intel.com>
>> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
>> ---
>>  .../drm/i915/display/intel_display_power.c    | 474
>> +++++++++++++++++-
>>  .../drm/i915/display/intel_display_power.h    |  26 +-
>>  drivers/gpu/drm/i915/i915_debugfs.c           |   3 +-
>>  drivers/gpu/drm/i915/i915_reg.h               |  18 +
>>  4 files changed, 502 insertions(+), 19 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
>> b/drivers/gpu/drm/i915/display/intel_display_power.c
>> index c93ad512014c..20b2009cecc6 100644
>> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
>> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
>> @@ -22,8 +22,11 @@ bool intel_display_power_well_is_enabled(struct
>> drm_i915_private *dev_priv,
>>  					 enum i915_power_well_id
>> power_well_id);
>>
>>  const char *
>> -intel_display_power_domain_str(enum intel_display_power_domain
>> domain)
>> +intel_display_power_domain_str(struct drm_i915_private *i915,
>> +			       enum intel_display_power_domain domain)
>>  {
>> +	bool ddi_tc_ports = IS_GEN(i915, 12);
>> +
>>  	switch (domain) {
>>  	case POWER_DOMAIN_DISPLAY_CORE:
>>  		return "DISPLAY_CORE";
>> @@ -60,11 +63,23 @@ intel_display_power_domain_str(enum
>> intel_display_power_domain domain)
>>  	case POWER_DOMAIN_PORT_DDI_C_LANES:
>>  		return "PORT_DDI_C_LANES";
>>  	case POWER_DOMAIN_PORT_DDI_D_LANES:
>> -		return "PORT_DDI_D_LANES";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_D_LANES !=
>> +			     POWER_DOMAIN_PORT_DDI_TC1_LANES);
>> +		return ddi_tc_ports ? "PORT_DDI_TC1_LANES" :
>> "PORT_DDI_D_LANES";
>>  	case POWER_DOMAIN_PORT_DDI_E_LANES:
>> -		return "PORT_DDI_E_LANES";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_E_LANES !=
>> +			     POWER_DOMAIN_PORT_DDI_TC2_LANES);
>> +		return ddi_tc_ports ? "PORT_DDI_TC2_LANES" :
>> "PORT_DDI_E_LANES";
>>  	case POWER_DOMAIN_PORT_DDI_F_LANES:
>> -		return "PORT_DDI_F_LANES";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_F_LANES !=
>> +			     POWER_DOMAIN_PORT_DDI_TC3_LANES);
>> +		return ddi_tc_ports ? "PORT_DDI_TC3_LANES" :
>> "PORT_DDI_F_LANES";
>> +	case POWER_DOMAIN_PORT_DDI_TC4_LANES:
>> +		return "PORT_DDI_TC4_LANES";
>> +	case POWER_DOMAIN_PORT_DDI_TC5_LANES:
>> +		return "PORT_DDI_TC5_LANES";
>> +	case POWER_DOMAIN_PORT_DDI_TC6_LANES:
>> +		return "PORT_DDI_TC6_LANES";
>>  	case POWER_DOMAIN_PORT_DDI_A_IO:
>>  		return "PORT_DDI_A_IO";
>>  	case POWER_DOMAIN_PORT_DDI_B_IO:
>> @@ -72,11 +87,23 @@ intel_display_power_domain_str(enum
>> intel_display_power_domain domain)
>>  	case POWER_DOMAIN_PORT_DDI_C_IO:
>>  		return "PORT_DDI_C_IO";
>>  	case POWER_DOMAIN_PORT_DDI_D_IO:
>> -		return "PORT_DDI_D_IO";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_D_IO !=
>> +			     POWER_DOMAIN_PORT_DDI_TC1_IO);
>> +		return ddi_tc_ports ? "PORT_DDI_TC1_IO" :
>> "PORT_DDI_D_IO";
>>  	case POWER_DOMAIN_PORT_DDI_E_IO:
>> -		return "PORT_DDI_E_IO";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_E_IO !=
>> +			     POWER_DOMAIN_PORT_DDI_TC2_IO);
>> +		return ddi_tc_ports ? "PORT_DDI_TC2_IO" :
>> "PORT_DDI_E_IO";
>>  	case POWER_DOMAIN_PORT_DDI_F_IO:
>> -		return "PORT_DDI_F_IO";
>> +		BUILD_BUG_ON(POWER_DOMAIN_PORT_DDI_F_IO !=
>> +			     POWER_DOMAIN_PORT_DDI_TC3_IO);
>> +		return ddi_tc_ports ? "PORT_DDI_TC3_IO" :
>> "PORT_DDI_F_IO";
>> +	case POWER_DOMAIN_PORT_DDI_TC4_IO:
>> +		return "PORT_DDI_TC4_IO";
>> +	case POWER_DOMAIN_PORT_DDI_TC5_IO:
>> +		return "PORT_DDI_TC5_IO";
>> +	case POWER_DOMAIN_PORT_DDI_TC6_IO:
>> +		return "PORT_DDI_TC6_IO";
>>  	case POWER_DOMAIN_PORT_DSI:
>>  		return "PORT_DSI";
>>  	case POWER_DOMAIN_PORT_CRT:
>> @@ -94,11 +121,20 @@ intel_display_power_domain_str(enum
>> intel_display_power_domain domain)
>>  	case POWER_DOMAIN_AUX_C:
>>  		return "AUX_C";
>>  	case POWER_DOMAIN_AUX_D:
>> -		return "AUX_D";
>> +		BUILD_BUG_ON(POWER_DOMAIN_AUX_D !=
>> POWER_DOMAIN_AUX_TC1);
>> +		return ddi_tc_ports ? "AUX_TC1" : "AUX_D";
>>  	case POWER_DOMAIN_AUX_E:
>> -		return "AUX_E";
>> +		BUILD_BUG_ON(POWER_DOMAIN_AUX_E !=
>> POWER_DOMAIN_AUX_TC2);
>> +		return ddi_tc_ports ? "AUX_TC2" : "AUX_E";
>>  	case POWER_DOMAIN_AUX_F:
>> -		return "AUX_F";
>> +		BUILD_BUG_ON(POWER_DOMAIN_AUX_F !=
>> POWER_DOMAIN_AUX_TC3);
>> +		return ddi_tc_ports ? "AUX_TC3" : "AUX_F";
>> +	case POWER_DOMAIN_AUX_TC4:
>> +		return "AUX_TC4";
>> +	case POWER_DOMAIN_AUX_TC5:
>> +		return "AUX_TC5";
>> +	case POWER_DOMAIN_AUX_TC6:
>> +		return "AUX_TC6";
>>  	case POWER_DOMAIN_AUX_IO_A:
>>  		return "AUX_IO_A";
>>  	case POWER_DOMAIN_AUX_TBT1:
>> @@ -109,6 +145,10 @@ intel_display_power_domain_str(enum
>> intel_display_power_domain domain)
>>  		return "AUX_TBT3";
>>  	case POWER_DOMAIN_AUX_TBT4:
>>  		return "AUX_TBT4";
>> +	case POWER_DOMAIN_AUX_TBT5:
>> +		return "AUX_TBT5";
>> +	case POWER_DOMAIN_AUX_TBT6:
>> +		return "AUX_TBT6";
>>  	case POWER_DOMAIN_GMBUS:
>>  		return "GMBUS";
>>  	case POWER_DOMAIN_INIT:
>> @@ -1568,12 +1608,15 @@ __async_put_domains_state_ok(struct
>> i915_power_domains *power_domains)
>>  static void print_power_domains(struct i915_power_domains
>> *power_domains,
>>  				const char *prefix, u64 mask)
>>  {
>> +	struct drm_i915_private *i915 =
>> +		container_of(power_domains, struct drm_i915_private,
>> +			     power_domains);
>>  	enum intel_display_power_domain domain;
>>
>>  	DRM_DEBUG_DRIVER("%s (%lu):\n", prefix, hweight64(mask));
>>  	for_each_power_domain(domain, mask)
>>  		DRM_DEBUG_DRIVER("%s use_count %d\n",
>> -				 intel_display_power_domain_str(domain)
>> ,
>> +				 intel_display_power_domain_str(i915,
>> domain),
>>  				 power_domains-
>> >domain_use_count[domain]);
>>  }
>>
>> @@ -1743,7 +1786,7 @@ __intel_display_power_put_domain(struct
>> drm_i915_private *dev_priv,
>>  {
>>  	struct i915_power_domains *power_domains;
>>  	struct i915_power_well *power_well;
>> -	const char *name = intel_display_power_domain_str(domain);
>> +	const char *name = intel_display_power_domain_str(dev_priv,
>> domain);
>>
>>  	power_domains = &dev_priv->power_domains;
>>
>> @@ -2307,11 +2350,14 @@ void intel_display_power_put(struct
>> drm_i915_private *dev_priv,
>>   * ICL PW_1/PG_1 domains (HW/DMC control):
>>   * - DBUF function
>>   * - PIPE_A and its planes, except VGA
>> - * - transcoder EDP + PSR
>> + * - GEN 11: transcoder EDP + PSR
>> + *   GEN 12: transcoder A + PSR
>>   * - transcoder DSI
>> - * - DDI_A
>> + * - GEN 11: DDI_A
>> + *   GEN 12: DDI_A-C
>>   * - FBC
>>   */
>> +/* TODO: TGL_PW_5_POWER_DOMAINS: PIPE_D */
>>  #define ICL_PW_4_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_PIPE_C) |			\
>>  	BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) |	\
>> @@ -2346,22 +2392,67 @@ void intel_display_power_put(struct
>> drm_i915_private *dev_priv,
>>  	BIT_ULL(POWER_DOMAIN_VGA) |			\
>>  	BIT_ULL(POWER_DOMAIN_AUDIO) |			\
>>  	BIT_ULL(POWER_DOMAIN_INIT))
>> +#define TGL_PW_3_POWER_DOMAINS (			\
>> +	ICL_PW_4_POWER_DOMAINS |			\
>> +	BIT_ULL(POWER_DOMAIN_PIPE_B) |			\
>> +	BIT_ULL(POWER_DOMAIN_TRANSCODER_B) |		\
>> +	BIT_ULL(POWER_DOMAIN_TRANSCODER_C) |		\
>> +	/* TODO: TRANSCODER_D */			\
>> +	BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC1_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC1_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC2_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC2_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC3_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC3_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC4_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC4_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC5_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC5_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC6_LANES) |	\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC6_IO) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC1) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC2) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC3) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC4) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC5) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC6) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT1) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT2) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT3) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT4) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT5) |		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT6) |		\
>> +	BIT_ULL(POWER_DOMAIN_VGA) |			\
>> +	BIT_ULL(POWER_DOMAIN_AUDIO) |			\
>> +	BIT_ULL(POWER_DOMAIN_INIT))
>>  	/*
>>  	 * - transcoder WD
>>  	 * - KVMR (HW control)
>>  	 */
>>  #define ICL_PW_2_POWER_DOMAINS (			\
>>  	ICL_PW_3_POWER_DOMAINS |			\
>> -	BIT_ULL(POWER_DOMAIN_TRANSCODER_EDP_VDSC) |		\
>> +	BIT_ULL(POWER_DOMAIN_TRANSCODER_EDP_VDSC) |	\
>> +	BIT_ULL(POWER_DOMAIN_INIT))
>> +#define TGL_PW_2_POWER_DOMAINS (			\
>> +	TGL_PW_3_POWER_DOMAINS |			\
>> +	BIT_ULL(POWER_DOMAIN_TRANSCODER_EDP_VDSC) |	\
>
>There is no POWER_DOMAIN_TRANSCODER_EDP_VDSC on TGL, maybe reorder the
>patches to have "drm/i915/tgl: Add TRANSCODER_A_VDSC power domain"
>first then you can add TRANSCODER_A_VDSC here.

makes sense,

thanks

Lucas De Marchi

>
>>  	BIT_ULL(POWER_DOMAIN_INIT))
>>  	/*
>>  	 * - KVMR (HW control)
>> +	 * - GEN 11: eDP/DSI VDSC
>> +	 * - GEN 12: PIPE A VDSC/joining
>>  	 */
>>  #define ICL_DISPLAY_DC_OFF_POWER_DOMAINS (		\
>>  	ICL_PW_2_POWER_DOMAINS |			\
>>  	BIT_ULL(POWER_DOMAIN_MODESET) |			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_A) |			\
>>  	BIT_ULL(POWER_DOMAIN_INIT))
>> +#define TGL_DISPLAY_DC_OFF_POWER_DOMAINS (		\
>> +	TGL_PW_2_POWER_DOMAINS |			\
>> +	BIT_ULL(POWER_DOMAIN_MODESET) |			\
>> +	BIT_ULL(POWER_DOMAIN_AUX_A) |			\
>> +	BIT_ULL(POWER_DOMAIN_INIT))
>>
>>  #define ICL_DDI_IO_A_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO))
>> @@ -2371,10 +2462,22 @@ void intel_display_power_put(struct
>> drm_i915_private *dev_priv,
>>  	BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO))
>>  #define ICL_DDI_IO_D_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO))
>> +#define TGL_DDI_IO_TC1_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC1_IO))
>>  #define ICL_DDI_IO_E_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO))
>> +#define TGL_DDI_IO_TC2_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC2_IO))
>>  #define ICL_DDI_IO_F_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_PORT_DDI_F_IO))
>> +#define TGL_DDI_IO_TC3_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC3_IO))
>> +#define TGL_DDI_IO_TC4_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC4_IO))
>> +#define TGL_DDI_IO_TC5_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC5_IO))
>> +#define TGL_DDI_IO_TC6_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_PORT_DDI_TC6_IO))
>>
>>  #define ICL_AUX_A_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_IO_A) |		\
>> @@ -2385,10 +2488,22 @@ void intel_display_power_put(struct
>> drm_i915_private *dev_priv,
>>  	BIT_ULL(POWER_DOMAIN_AUX_C))
>>  #define ICL_AUX_D_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_D))
>> +#define TGL_AUX_TC1_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC1))
>>  #define ICL_AUX_E_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_E))
>> +#define TGL_AUX_TC2_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC2))
>>  #define ICL_AUX_F_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_F))
>> +#define TGL_AUX_TC3_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC3))
>> +#define TGL_AUX_TC4_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC4))
>> +#define TGL_AUX_TC5_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC5))
>> +#define TGL_AUX_TC6_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TC6))
>>  #define ICL_AUX_TBT1_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_TBT1))
>>  #define ICL_AUX_TBT2_IO_POWER_DOMAINS (			\
>> @@ -2397,6 +2512,10 @@ void intel_display_power_put(struct
>> drm_i915_private *dev_priv,
>>  	BIT_ULL(POWER_DOMAIN_AUX_TBT3))
>>  #define ICL_AUX_TBT4_IO_POWER_DOMAINS (			\
>>  	BIT_ULL(POWER_DOMAIN_AUX_TBT4))
>> +#define TGL_AUX_TBT5_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT5))
>> +#define TGL_AUX_TBT6_IO_POWER_DOMAINS (		\
>> +	BIT_ULL(POWER_DOMAIN_AUX_TBT6))
>>
>>  static const struct i915_power_well_ops
>> i9xx_always_on_power_well_ops = {
>>  	.sync_hw = i9xx_power_well_sync_hw_noop,
>> @@ -3355,6 +3474,324 @@ static const struct i915_power_well_desc
>> icl_power_wells[] = {
>>  	},
>>  };
>>
>> +static const struct i915_power_well_desc tgl_power_wells[] = {
>> +	{
>> +		.name = "always-on",
>> +		.always_on = true,
>> +		.domains = POWER_DOMAIN_MASK,
>> +		.ops = &i9xx_always_on_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +	},
>> +	{
>> +		.name = "power well 1",
>> +		/* Handled by the DMC firmware */
>> +		.always_on = true,
>> +		.domains = 0,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = SKL_DISP_PW_1,
>> +		{
>> +			.hsw.regs = &hsw_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_PW_1,
>> +			.hsw.has_fuses = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "DC off",
>> +		.domains = TGL_DISPLAY_DC_OFF_POWER_DOMAINS,
>> +		.ops = &gen9_dc_off_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +	},
>> +	{
>> +		.name = "power well 2",
>> +		.domains = TGL_PW_2_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = SKL_DISP_PW_2,
>> +		{
>> +			.hsw.regs = &hsw_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_PW_2,
>> +			.hsw.has_fuses = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "power well 3",
>> +		.domains = TGL_PW_3_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &hsw_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_PW_3,
>> +			.hsw.irq_pipe_mask = BIT(PIPE_B),
>> +			.hsw.has_vga = true,
>> +			.hsw.has_fuses = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI A IO",
>> +		.domains = ICL_DDI_IO_A_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
>> +		}
>> +	},
>> +	{
>> +		.name = "DDI B IO",
>> +		.domains = ICL_DDI_IO_B_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
>> +		}
>> +	},
>> +	{
>> +		.name = "DDI C IO",
>> +		.domains = ICL_DDI_IO_C_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_DDI_C,
>> +		}
>> +	},
>> +	{
>> +		.name = "DDI TC1 IO",
>> +		.domains = TGL_DDI_IO_TC1_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC1,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI TC2 IO",
>> +		.domains = TGL_DDI_IO_TC2_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC2,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI TC3 IO",
>> +		.domains = TGL_DDI_IO_TC3_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC3,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI TC4 IO",
>> +		.domains = TGL_DDI_IO_TC4_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC4,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI TC5 IO",
>> +		.domains = TGL_DDI_IO_TC5_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC5,
>> +		},
>> +	},
>> +	{
>> +		.name = "DDI TC6 IO",
>> +		.domains = TGL_DDI_IO_TC6_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_ddi_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_DDI_TC6,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX A",
>> +		.domains = ICL_AUX_A_IO_POWER_DOMAINS,
>> +		.ops = &icl_combo_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX B",
>> +		.domains = ICL_AUX_B_IO_POWER_DOMAINS,
>> +		.ops = &icl_combo_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX C",
>> +		.domains = ICL_AUX_C_IO_POWER_DOMAINS,
>> +		.ops = &icl_combo_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_AUX_C,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC1",
>> +		.domains = TGL_AUX_TC1_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC1,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC2",
>> +		.domains = TGL_AUX_TC2_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC2,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC3",
>> +		.domains = TGL_AUX_TC3_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC3,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC4",
>> +		.domains = TGL_AUX_TC4_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC4,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC5",
>> +		.domains = TGL_AUX_TC5_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC5,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TC6",
>> +		.domains = TGL_AUX_TC6_IO_POWER_DOMAINS,
>> +		.ops = &icl_tc_phy_aux_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TC6,
>> +			.hsw.is_tc_tbt = false,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT1",
>> +		.domains = ICL_AUX_TBT1_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT1,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT2",
>> +		.domains = ICL_AUX_TBT2_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT2,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT3",
>> +		.domains = ICL_AUX_TBT3_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT3,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT4",
>> +		.domains = ICL_AUX_TBT4_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT4,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT5",
>> +		.domains = TGL_AUX_TBT5_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT5,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "AUX TBT6",
>> +		.domains = TGL_AUX_TBT6_IO_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &icl_aux_power_well_regs,
>> +			.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT6,
>> +			.hsw.is_tc_tbt = true,
>> +		},
>> +	},
>> +	{
>> +		.name = "power well 4",
>> +		.domains = ICL_PW_4_POWER_DOMAINS,
>> +		.ops = &hsw_power_well_ops,
>> +		.id = DISP_PW_ID_NONE,
>> +		{
>> +			.hsw.regs = &hsw_power_well_regs,
>> +			.hsw.idx = ICL_PW_CTL_IDX_PW_4,
>> +			.hsw.has_fuses = true,
>> +			.hsw.irq_pipe_mask = BIT(PIPE_C),
>> +		}
>> +	},
>> +	/* TODO: power well 5 for pipe D */
>> +};
>> +
>>  static int
>>  sanitize_disable_power_well_option(const struct drm_i915_private
>> *dev_priv,
>>  				   int disable_power_well)
>> @@ -3482,7 +3919,9 @@ int intel_power_domains_init(struct
>> drm_i915_private *dev_priv)
>>  	 * The enabling order will be from lower to higher indexed
>> wells,
>>  	 * the disabling order is reversed.
>>  	 */
>> -	if (IS_GEN(dev_priv, 11)) {
>> +	if (IS_GEN(dev_priv, 12)) {
>> +		err = set_power_wells(power_domains, tgl_power_wells);
>> +	} else if (IS_GEN(dev_priv, 11)) {
>>  		err = set_power_wells(power_domains, icl_power_wells);
>>  	} else if (IS_CANNONLAKE(dev_priv)) {
>>  		err = set_power_wells(power_domains, cnl_power_wells);
>> @@ -4546,7 +4985,8 @@ static void
>> intel_power_domains_dump_info(struct drm_i915_private *i915)
>>
>>  		for_each_power_domain(domain, power_well->desc-
>> >domains)
>>  			DRM_DEBUG_DRIVER("  %-23s %d\n",
>> -					 intel_display_power_domain_str
>> (domain),
>> +					 intel_display_power_domain_str
>> (i915,
>> +									
>> domain),
>>  					 power_domains-
>> >domain_use_count[domain]);
>>  	}
>>  }
>> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h
>> b/drivers/gpu/drm/i915/display/intel_display_power.h
>> index ff57b0a7fe59..8f81b769bc2e 100644
>> --- a/drivers/gpu/drm/i915/display/intel_display_power.h
>> +++ b/drivers/gpu/drm/i915/display/intel_display_power.h
>> @@ -32,14 +32,29 @@ enum intel_display_power_domain {
>>  	POWER_DOMAIN_PORT_DDI_B_LANES,
>>  	POWER_DOMAIN_PORT_DDI_C_LANES,
>>  	POWER_DOMAIN_PORT_DDI_D_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC1_LANES =
>> POWER_DOMAIN_PORT_DDI_D_LANES,
>>  	POWER_DOMAIN_PORT_DDI_E_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC2_LANES =
>> POWER_DOMAIN_PORT_DDI_E_LANES,
>>  	POWER_DOMAIN_PORT_DDI_F_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC3_LANES =
>> POWER_DOMAIN_PORT_DDI_F_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC4_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC5_LANES,
>> +	POWER_DOMAIN_PORT_DDI_TC6_LANES,
>>  	POWER_DOMAIN_PORT_DDI_A_IO,
>>  	POWER_DOMAIN_PORT_DDI_B_IO,
>>  	POWER_DOMAIN_PORT_DDI_C_IO,
>>  	POWER_DOMAIN_PORT_DDI_D_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC1_IO = POWER_DOMAIN_PORT_DDI_D_IO,
>>  	POWER_DOMAIN_PORT_DDI_E_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC2_IO = POWER_DOMAIN_PORT_DDI_E_IO,
>>  	POWER_DOMAIN_PORT_DDI_F_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC3_IO = POWER_DOMAIN_PORT_DDI_F_IO,
>> +	POWER_DOMAIN_PORT_DDI_G_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC4_IO = POWER_DOMAIN_PORT_DDI_G_IO,
>> +	POWER_DOMAIN_PORT_DDI_H_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC5_IO = POWER_DOMAIN_PORT_DDI_H_IO,
>> +	POWER_DOMAIN_PORT_DDI_I_IO,
>> +	POWER_DOMAIN_PORT_DDI_TC6_IO = POWER_DOMAIN_PORT_DDI_I_IO,
>>  	POWER_DOMAIN_PORT_DSI,
>>  	POWER_DOMAIN_PORT_CRT,
>>  	POWER_DOMAIN_PORT_OTHER,
>> @@ -49,13 +64,21 @@ enum intel_display_power_domain {
>>  	POWER_DOMAIN_AUX_B,
>>  	POWER_DOMAIN_AUX_C,
>>  	POWER_DOMAIN_AUX_D,
>> +	POWER_DOMAIN_AUX_TC1 = POWER_DOMAIN_AUX_D,
>>  	POWER_DOMAIN_AUX_E,
>> +	POWER_DOMAIN_AUX_TC2 = POWER_DOMAIN_AUX_E,
>>  	POWER_DOMAIN_AUX_F,
>> +	POWER_DOMAIN_AUX_TC3 = POWER_DOMAIN_AUX_F,
>> +	POWER_DOMAIN_AUX_TC4,
>> +	POWER_DOMAIN_AUX_TC5,
>> +	POWER_DOMAIN_AUX_TC6,
>>  	POWER_DOMAIN_AUX_IO_A,
>>  	POWER_DOMAIN_AUX_TBT1,
>>  	POWER_DOMAIN_AUX_TBT2,
>>  	POWER_DOMAIN_AUX_TBT3,
>>  	POWER_DOMAIN_AUX_TBT4,
>> +	POWER_DOMAIN_AUX_TBT5,
>> +	POWER_DOMAIN_AUX_TBT6,
>>  	POWER_DOMAIN_GMBUS,
>>  	POWER_DOMAIN_MODESET,
>>  	POWER_DOMAIN_GT_IRQ,
>> @@ -227,7 +250,8 @@ void bxt_display_core_init(struct
>> drm_i915_private *dev_priv, bool resume);
>>  void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
>>
>>  const char *
>> -intel_display_power_domain_str(enum intel_display_power_domain
>> domain);
>> +intel_display_power_domain_str(struct drm_i915_private *i915,
>> +			       enum intel_display_power_domain domain);
>>
>>  bool intel_display_power_is_enabled(struct drm_i915_private
>> *dev_priv,
>>  				    enum intel_display_power_domain
>> domain);
>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
>> b/drivers/gpu/drm/i915/i915_debugfs.c
>> index eeecdad0e3ca..5247fa69dfec 100644
>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> @@ -2479,7 +2479,8 @@ static int i915_power_domain_info(struct
>> seq_file *m, void *unused)
>>
>>  		for_each_power_domain(power_domain, power_well->desc-
>> >domains)
>>  			seq_printf(m, "  %-23s %d\n",
>> -				 intel_display_power_domain_str(power_d
>> omain),
>> +				 intel_display_power_domain_str(dev_pri
>> v,
>> +								power_d
>> omain),
>>  				 power_domains-
>> >domain_use_count[power_domain]);
>>  	}
>>
>> diff --git a/drivers/gpu/drm/i915/i915_reg.h
>> b/drivers/gpu/drm/i915/i915_reg.h
>> index 95fdc8dbca31..a2010b30ca89 100644
>> --- a/drivers/gpu/drm/i915/i915_reg.h
>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>> @@ -9141,13 +9141,25 @@ enum {
>>  #define ICL_PWR_WELL_CTL_AUX1			_MMIO(0x45440)
>>  #define ICL_PWR_WELL_CTL_AUX2			_MMIO(0x45444)
>>  #define ICL_PWR_WELL_CTL_AUX4			_MMIO(0x4544C)
>> +#define   TGL_PW_CTL_IDX_AUX_TBT6		14
>> +#define   TGL_PW_CTL_IDX_AUX_TBT5		13
>> +#define   TGL_PW_CTL_IDX_AUX_TBT4		12
>>  #define   ICL_PW_CTL_IDX_AUX_TBT4		11
>> +#define   TGL_PW_CTL_IDX_AUX_TBT3		11
>>  #define   ICL_PW_CTL_IDX_AUX_TBT3		10
>> +#define   TGL_PW_CTL_IDX_AUX_TBT2		10
>>  #define   ICL_PW_CTL_IDX_AUX_TBT2		9
>> +#define   TGL_PW_CTL_IDX_AUX_TBT1		9
>>  #define   ICL_PW_CTL_IDX_AUX_TBT1		8
>> +#define   TGL_PW_CTL_IDX_AUX_TC6		8
>> +#define   TGL_PW_CTL_IDX_AUX_TC5		7
>> +#define   TGL_PW_CTL_IDX_AUX_TC4		6
>>  #define   ICL_PW_CTL_IDX_AUX_F			5
>> +#define   TGL_PW_CTL_IDX_AUX_TC3		5
>>  #define   ICL_PW_CTL_IDX_AUX_E			4
>> +#define   TGL_PW_CTL_IDX_AUX_TC2		4
>>  #define   ICL_PW_CTL_IDX_AUX_D			3
>> +#define   TGL_PW_CTL_IDX_AUX_TC1		3
>>  #define   ICL_PW_CTL_IDX_AUX_C			2
>>  #define   ICL_PW_CTL_IDX_AUX_B			1
>>  #define   ICL_PW_CTL_IDX_AUX_A			0
>> @@ -9155,9 +9167,15 @@ enum {
>>  #define ICL_PWR_WELL_CTL_DDI1			_MMIO(0x45450)
>>  #define ICL_PWR_WELL_CTL_DDI2			_MMIO(0x45454)
>>  #define ICL_PWR_WELL_CTL_DDI4			_MMIO(0x4545C)
>> +#define   TGL_PW_CTL_IDX_DDI_TC6		8
>> +#define   TGL_PW_CTL_IDX_DDI_TC5		7
>> +#define   TGL_PW_CTL_IDX_DDI_TC4		6
>>  #define   ICL_PW_CTL_IDX_DDI_F			5
>> +#define   TGL_PW_CTL_IDX_DDI_TC3		5
>>  #define   ICL_PW_CTL_IDX_DDI_E			4
>> +#define   TGL_PW_CTL_IDX_DDI_TC2		4
>>  #define   ICL_PW_CTL_IDX_DDI_D			3
>> +#define   TGL_PW_CTL_IDX_DDI_TC1		3
>>  #define   ICL_PW_CTL_IDX_DDI_C			2
>>  #define   ICL_PW_CTL_IDX_DDI_B			1
>>  #define   ICL_PW_CTL_IDX_DDI_A			0


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