On Fri, Jul 24, 2020 at 02:38:59PM -0700, Lucas De Marchi wrote:
> From: Uma Shankar <uma.shankar@xxxxxxxxx>
>
> Most of TGL power wells are re-used for DG1. However, AUDIO Power
> Domain is moved from PG3 to PG0. Handle the change and initialize
> power wells with the new power well structure.
>
> Some of the Audio Streaming logic still remains in PW3 so still
> it needs to be enabled.
>
> DDIA, DDIB, TC1 and TC2 are the active ports on DG1.
>
> Need to keep Transcoder C and D to Pipe Power wells, this is against
> the spec but else hitting unclaimed register warnings (kept the logic
> same as TGL)
I think this paragraph is old; the bspec shows transcoders C and D in
the same power wells as pipes C and D now so this is no longer a spec
violation.
Although the bspec went through a few revisions early on, it looks like
DG1 is just a strict subset of the TGL power wells now, so there
probably isn't a need to duplicate it as a whole new table here; I think
the only thing keeping us from re-using TGL's table as-is for DG1 is the
fake "TC COLD" well that blindly makes assumptions about which outputs
are TC rather than paying attention to the real output type. I think
Aditya has some code that would fix the TCCOLD's assumptions and then we
can just point DG1 to the TGL table.
Matt
>
> Bspec: 49182
>
> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Cc: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
> Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> ---
> .../drm/i915/display/intel_display_power.c | 201 +++++++++++++++++-
> 1 file changed, 200 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index 0c713e83274d..b51b82cb2398 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -2970,6 +2970,44 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
> BIT_ULL(POWER_DOMAIN_AUX_B) | \
> BIT_ULL(POWER_DOMAIN_INIT))
>
> +#define DG1_PW_5_POWER_DOMAINS ( \
> + BIT_ULL(POWER_DOMAIN_PIPE_D) | \
> + BIT_ULL(POWER_DOMAIN_TRANSCODER_D) | \
> + BIT_ULL(POWER_DOMAIN_PIPE_D_PANEL_FITTER) | \
> + BIT_ULL(POWER_DOMAIN_INIT))
> +
> +#define DG1_PW_4_POWER_DOMAINS ( \
> + DG1_PW_5_POWER_DOMAINS | \
> + BIT_ULL(POWER_DOMAIN_PIPE_C) | \
> + BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
> + BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
> + BIT_ULL(POWER_DOMAIN_INIT))
> +
> +#define DG1_PW_3_POWER_DOMAINS ( \
> + DG1_PW_4_POWER_DOMAINS | \
> + BIT_ULL(POWER_DOMAIN_PIPE_B) | \
> + BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
> + BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
> + BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
> + BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
> + BIT_ULL(POWER_DOMAIN_AUX_D) | \
> + BIT_ULL(POWER_DOMAIN_AUX_E) | \
> + BIT_ULL(POWER_DOMAIN_VGA) | \
> + BIT_ULL(POWER_DOMAIN_AUDIO) | \
> + BIT_ULL(POWER_DOMAIN_INIT))
> +
> +#define DG1_PW_2_POWER_DOMAINS ( \
> + DG1_PW_3_POWER_DOMAINS | \
> + BIT_ULL(POWER_DOMAIN_TRANSCODER_VDSC_PW2) | \
> + BIT_ULL(POWER_DOMAIN_INIT))
> +
> +#define DG1_DISPLAY_DC_OFF_POWER_DOMAINS ( \
> + DG1_PW_3_POWER_DOMAINS | \
> + BIT_ULL(POWER_DOMAIN_MODESET) | \
> + BIT_ULL(POWER_DOMAIN_AUX_A) | \
> + BIT_ULL(POWER_DOMAIN_AUX_B) | \
> + BIT_ULL(POWER_DOMAIN_INIT))
> +
> static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
> .sync_hw = i9xx_power_well_sync_hw_noop,
> .enable = i9xx_always_on_power_well_noop,
> @@ -4474,6 +4512,165 @@ static const struct i915_power_well_desc rkl_power_wells[] = {
> },
> };
>
> +static const struct i915_power_well_desc dg1_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 = DG1_DISPLAY_DC_OFF_POWER_DOMAINS,
> + .ops = &gen9_dc_off_power_well_ops,
> + .id = SKL_DISP_DC_OFF,
> + },
> + {
> + .name = "power well 2",
> + .domains = DG1_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 = DG1_PW_3_POWER_DOMAINS,
> + .ops = &hsw_power_well_ops,
> + .id = ICL_DISP_PW_3,
> + {
> + .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 D TC1 IO",
> + .domains = TGL_DDI_IO_D_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 E TC2 IO",
> + .domains = TGL_DDI_IO_E_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 = "AUX A",
> + .domains = ICL_AUX_A_IO_POWER_DOMAINS,
> + .ops = &icl_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_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 D TC1",
> + .domains = TGL_AUX_D_TC1_IO_POWER_DOMAINS,
> + .ops = &icl_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 E TC2",
> + .domains = TGL_AUX_E_TC2_IO_POWER_DOMAINS,
> + .ops = &icl_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 = "power well 4",
> + .domains = DG1_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),
> + }
> + },
> + {
> + .name = "power well 5",
> + .domains = DG1_PW_5_POWER_DOMAINS,
> + .ops = &hsw_power_well_ops,
> + .id = DISP_PW_ID_NONE,
> + {
> + .hsw.regs = &hsw_power_well_regs,
> + .hsw.idx = TGL_PW_CTL_IDX_PW_5,
> + .hsw.has_fuses = true,
> + .hsw.irq_pipe_mask = BIT(PIPE_D),
> + },
> + },
> +};
> +
> static int
> sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv,
> int disable_power_well)
> @@ -4622,7 +4819,9 @@ 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_ROCKETLAKE(dev_priv)) {
> + if (IS_DG1(dev_priv)) {
> + err = set_power_wells(power_domains, dg1_power_wells);
> + } else if (IS_ROCKETLAKE(dev_priv)) {
> err = set_power_wells(power_domains, rkl_power_wells);
> } else if (IS_GEN(dev_priv, 12)) {
> err = set_power_wells(power_domains, tgl_power_wells);
> --
> 2.26.2
>
--
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795
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