From: Imre Deak <imre.deak@intel.com>
To: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v2 20/32] drm/i915/dg1: add hpd interrupt handling
Date: Mon, 22 Jun 2020 23:54:11 +0300 [thread overview]
Message-ID: <20200622205411.GA12843@ideak-desk.fi.intel.com> (raw)
In-Reply-To: <20200622204345.l3hbdamz4zgymbuc@ldmartin-desk1>
On Mon, Jun 22, 2020 at 01:43:45PM -0700, Lucas De Marchi wrote:
> On Mon, Jun 22, 2020 at 09:35:09PM +0300, Imre Deak wrote:
> > On Wed, Jun 17, 2020 at 05:42:28PM -0700, Lucas De Marchi wrote:
> > > DG1 has one more combo phy port, no TC and all irq handling goes through
> > > SDE, like for MCC.
> > >
> > > Cc: Anshuman Gupta <anshuman.gupta@intel.com>
> > > Cc: José Roberto de Souza <jose.souza@intel.com>
> > > Cc: Imre Deak <imre.deak@intel.com>
> > > Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> > > ---
> > > drivers/gpu/drm/i915/i915_irq.c | 57 +++++++++++++++++++++++++++++----
> > > drivers/gpu/drm/i915/i915_reg.h | 8 +++++
> > > 2 files changed, 59 insertions(+), 6 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> > > index 48e1686df3416..3707f9231171f 100644
> > > --- a/drivers/gpu/drm/i915/i915_irq.c
> > > +++ b/drivers/gpu/drm/i915/i915_irq.c
> > > @@ -167,6 +167,13 @@ static const u32 hpd_tgp[HPD_NUM_PINS] = {
> > > [HPD_PORT_I] = SDE_TC_HOTPLUG_ICP(PORT_TC6),
> > > };
> > >
> > > +static const u32 hpd_dg1_sde[HPD_NUM_PINS] = {
> > > + [HPD_PORT_A] = SDE_DDI_HOTPLUG_ICP(PHY_A),
> > > + [HPD_PORT_B] = SDE_DDI_HOTPLUG_ICP(PHY_B),
> > > + [HPD_PORT_D] = SDE_DDI_HOTPLUG_ICP(PHY_C),
> > > + [HPD_PORT_E] = SDE_DDI_HOTPLUG_ICP(PHY_D),
> >
> > The above 2 entries look incorrect. encoder->hpd_pin will be assigned
> > based on the encoder/port's PHY (see intel_hpd_pin_default()). On DG1
>
> Humn... it was not like that. It seems to have changed recently:
> 270810a73210 ("drm/i915/hotplug: Use phy to get the hpd_pin instead of the port (v5)")
>
> Thanks for spotting that.
Yea, but I think the correct change is to keep the hpd pin table above
as-is and make DG1 the same case as RKL + TGP in
intel_hpd_pin_default(). By changing the hpd pin table above would break
the long/short pulse detection.
>
> Lucas De Marchi
>
> > port D is connected to PHY C and port E is connected to PHY D. So the
> > above two pin definitions should be:
> >
> > [HPD_PORT_C] = SDE_DDI_HOTPLUG_ICP(PHY_C),
> > [HPD_PORT_D] = SDE_DDI_HOTPLUG_ICP(PHY_D),
> >
> > > +};
> > > +
> > > static void intel_hpd_init_pins(struct drm_i915_private *dev_priv)
> > > {
> > > struct i915_hotplug *hpd = &dev_priv->hotplug;
> > > @@ -193,10 +200,13 @@ static void intel_hpd_init_pins(struct drm_i915_private *dev_priv)
> > > else
> > > hpd->hpd = hpd_ilk;
> > >
> > > - if (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv))
> > > + if ((INTEL_PCH_TYPE(dev_priv) < PCH_DG1) &&
> > > + (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv)))
> > > return;
> > >
> > > - if (HAS_PCH_TGP(dev_priv) || HAS_PCH_JSP(dev_priv))
> > > + if (HAS_PCH_DG1(dev_priv))
> > > + hpd->pch_hpd = hpd_dg1_sde;
> > > + else if (HAS_PCH_TGP(dev_priv) || HAS_PCH_JSP(dev_priv))
> > > hpd->pch_hpd = hpd_tgp;
> > > else if (HAS_PCH_ICP(dev_priv) || HAS_PCH_MCC(dev_priv))
> > > hpd->pch_hpd = hpd_icp;
> > > @@ -1145,6 +1155,22 @@ static bool tgp_tc_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
> > > }
> > > }
> > >
> > > +static bool dg1_ddi_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
> > > +{
> > > + switch (pin) {
> > > + case HPD_PORT_A:
> > > + return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(PORT_A);
> > > + case HPD_PORT_B:
> > > + return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(PORT_B);
> > > + case HPD_PORT_D:
> > > + return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(PORT_C);
> > > + case HPD_PORT_E:
> > > + return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(PORT_D);
> > > + default:
> > > + return false;
> > > + }
> > > +}
> > > +
> > > static bool spt_port_hotplug2_long_detect(enum hpd_pin pin, u32 val)
> > > {
> > > switch (pin) {
> > > @@ -1893,13 +1919,20 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
> > > u32 ddi_hotplug_trigger, tc_hotplug_trigger;
> > > u32 pin_mask = 0, long_mask = 0;
> > > bool (*tc_port_hotplug_long_detect)(enum hpd_pin pin, u32 val);
> > > + bool (*ddi_port_hotplug_long_detect)(enum hpd_pin pin, u32 val);
> > >
> > > - if (HAS_PCH_TGP(dev_priv)) {
> > > + if (HAS_PCH_DG1(dev_priv)) {
> > > + ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_DG1;
> > > + ddi_port_hotplug_long_detect = dg1_ddi_port_hotplug_long_detect;
> > > + tc_hotplug_trigger = 0;
> > > + } else if (HAS_PCH_TGP(dev_priv)) {
> > > ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_TGP;
> > > + ddi_port_hotplug_long_detect = icp_ddi_port_hotplug_long_detect;
> > > tc_hotplug_trigger = pch_iir & SDE_TC_MASK_TGP;
> > > tc_port_hotplug_long_detect = tgp_tc_port_hotplug_long_detect;
> > > } else if (HAS_PCH_JSP(dev_priv)) {
> > > ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_TGP;
> > > + ddi_port_hotplug_long_detect = icp_ddi_port_hotplug_long_detect;
> > > tc_hotplug_trigger = 0;
> > > } else if (HAS_PCH_MCC(dev_priv)) {
> > > ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;
> > > @@ -1911,6 +1944,7 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
> > > INTEL_PCH_TYPE(dev_priv));
> > >
> > > ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;
> > > + ddi_port_hotplug_long_detect = icp_ddi_port_hotplug_long_detect;
> > > tc_hotplug_trigger = pch_iir & SDE_TC_MASK_ICP;
> > > tc_port_hotplug_long_detect = icp_tc_port_hotplug_long_detect;
> > > }
> > > @@ -1924,7 +1958,7 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
> > > intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
> > > ddi_hotplug_trigger, dig_hotplug_reg,
> > > dev_priv->hotplug.pch_hpd,
> > > - icp_ddi_port_hotplug_long_detect);
> > > + ddi_port_hotplug_long_detect);
> > > }
> > >
> > > if (tc_hotplug_trigger) {
> > > @@ -3147,6 +3181,13 @@ static void jsp_hpd_irq_setup(struct drm_i915_private *dev_priv)
> > > TGP_DDI_HPD_ENABLE_MASK, 0);
> > > }
> > >
> > > +static void dg1_hpd_irq_setup(struct drm_i915_private *dev_priv)
> > > +{
> > > + icp_hpd_irq_setup(dev_priv,
> > > + SDE_DDI_MASK_DG1, 0,
> > > + DG1_DDI_HPD_ENABLE_MASK, 0);
> > > +}
> > > +
> > > static void gen11_hpd_detection_setup(struct drm_i915_private *dev_priv)
> > > {
> > > u32 hotplug;
> > > @@ -3535,7 +3576,9 @@ static void icp_irq_postinstall(struct drm_i915_private *dev_priv)
> > > gen3_assert_iir_is_zero(&dev_priv->uncore, SDEIIR);
> > > I915_WRITE(SDEIMR, ~mask);
> > >
> > > - if (HAS_PCH_TGP(dev_priv))
> > > + if (HAS_PCH_DG1(dev_priv))
> > > + icp_hpd_detection_setup(dev_priv, DG1_DDI_HPD_ENABLE_MASK, 0);
> > > + else if (HAS_PCH_TGP(dev_priv))
> > > icp_hpd_detection_setup(dev_priv, TGP_DDI_HPD_ENABLE_MASK,
> > > TGP_TC_HPD_ENABLE_MASK);
> > > else if (HAS_PCH_JSP(dev_priv))
> > > @@ -4051,7 +4094,9 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
> > > if (I915_HAS_HOTPLUG(dev_priv))
> > > dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup;
> > > } else {
> > > - if (HAS_PCH_JSP(dev_priv))
> > > + if (HAS_PCH_DG1(dev_priv))
> > > + dev_priv->display.hpd_irq_setup = dg1_hpd_irq_setup;
> > > + else if (HAS_PCH_JSP(dev_priv))
> > > dev_priv->display.hpd_irq_setup = jsp_hpd_irq_setup;
> > > else if (HAS_PCH_MCC(dev_priv))
> > > dev_priv->display.hpd_irq_setup = mcc_hpd_irq_setup;
> > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> > > index 6649aeca25d72..13a989f5e8dd3 100644
> > > --- a/drivers/gpu/drm/i915/i915_reg.h
> > > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > > @@ -8168,6 +8168,10 @@ enum {
> > > SDE_TC_HOTPLUG_ICP(PORT_TC3) | \
> > > SDE_TC_HOTPLUG_ICP(PORT_TC2) | \
> > > SDE_TC_HOTPLUG_ICP(PORT_TC1))
> > > +#define SDE_DDI_MASK_DG1 (SDE_DDI_HOTPLUG_ICP(PORT_D) | \
> > > + SDE_DDI_HOTPLUG_ICP(PORT_C) | \
> > > + SDE_DDI_HOTPLUG_ICP(PORT_B) | \
> > > + SDE_DDI_HOTPLUG_ICP(PORT_A))
> > >
> > > #define SDEISR _MMIO(0xc4000)
> > > #define SDEIMR _MMIO(0xc4004)
> > > @@ -8367,6 +8371,10 @@ enum {
> > > #define TGP_TC_HPD_ENABLE_MASK (ICP_TC_HPD_ENABLE(PORT_TC6) | \
> > > ICP_TC_HPD_ENABLE(PORT_TC5) | \
> > > ICP_TC_HPD_ENABLE_MASK)
> > > +#define DG1_DDI_HPD_ENABLE_MASK (SHOTPLUG_CTL_DDI_HPD_ENABLE(PORT_D) | \
> > > + SHOTPLUG_CTL_DDI_HPD_ENABLE(PORT_C) | \
> > > + SHOTPLUG_CTL_DDI_HPD_ENABLE(PORT_B) | \
> > > + SHOTPLUG_CTL_DDI_HPD_ENABLE(PORT_A))
> > >
> > > #define _PCH_DPLL_A 0xc6014
> > > #define _PCH_DPLL_B 0xc6018
> > > --
> > > 2.26.2
> > >
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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next prev parent reply other threads:[~2020-06-22 20:54 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 0:42 [Intel-gfx] [PATCH v2 00/32] Introduce DG1 Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 01/32] drm/i915/rkl: Handle new DPCLKA_CFGCR0 layout Lucas De Marchi
2020-06-23 23:40 ` Souza, Jose
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 02/32] drm/i915/rkl: Add DPLL4 support Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 03/32] drm/i915/rkl: Handle HTI Lucas De Marchi
2020-06-23 23:56 ` Souza, Jose
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 04/32] drm/i915/rkl: Add initial workarounds Lucas De Marchi
2020-06-24 0:13 ` Souza, Jose
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 05/32] drm/i915/rkl: Add Wa_14011224835 for PHY B initialization Lucas De Marchi
2020-06-24 0:07 ` Souza, Jose
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 06/32] drm/i915: Add has_master_unit_irq flag Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 07/32] drm/i915/dg1: add initial DG-1 definitions Lucas De Marchi
2020-06-22 7:51 ` Daniel Vetter
2020-06-22 9:55 ` Jani Nikula
2020-06-23 4:54 ` Dave Airlie
2020-06-23 6:17 ` Daniel Vetter
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 08/32] drm/i915/dg1: Add DG1 PCI IDs Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 09/32] drm/i915/dg1: add support for the master unit interrupt Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 10/32] drm/i915/dg1: Remove SHPD_FILTER_CNT register programming Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 11/32] drm/i915/dg1: Add fake PCH Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 12/32] drm/i915/dg1: Initialize RAWCLK properly Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 13/32] drm/i915/dg1: Define MOCS table for DG1 Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 14/32] drm/i915/dg1: Add DG1 power wells Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 15/32] drm/i915/dg1: Increase mmio size to 4MB Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 16/32] drm/i915/dg1: Wait for pcode/uncore handshake at startup Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 17/32] drm/i915/dg1: Add DPLL macros for DG1 Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 18/32] drm/i915/dg1: Add and setup DPLLs " Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 19/32] drm/i915/dg1: Enable DPLL " Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 20/32] drm/i915/dg1: add hpd interrupt handling Lucas De Marchi
2020-06-22 18:35 ` Imre Deak
2020-06-22 20:43 ` Lucas De Marchi
2020-06-22 20:54 ` Imre Deak [this message]
2020-06-22 21:59 ` Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 21/32] drm/i915/dg1: invert HPD pins Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 22/32] drm/i915/dg1: gmbus pin mapping Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 23/32] drm/i915/dg1: Enable first 2 ports for DG1 Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 24/32] drm/i915/dg1: Don't program PHY_MISC for PHY-C and PHY-D Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 25/32] drm/i915/dg1: Update comp master/slave relationships for PHYs Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 26/32] drm/i915/dg1: Update voltage swing tables for DP Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 27/32] drm/i915/dg1: provide port/phy mapping for vbt Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 28/32] drm/i915/dg1: map/unmap pll clocks Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 29/32] drm/i915/dg1: enable PORT C/D aka D/E Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 30/32] drm/i915/dg1: Load DMC Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 31/32] drm/i915/dg1: Add initial DG1 workarounds Lucas De Marchi
2020-06-18 0:42 ` [Intel-gfx] [PATCH v2 32/32] drm/i915/dg1: DG1 does not support DC6 Lucas De Marchi
2020-06-18 0:56 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce DG1 (rev2) Patchwork
2020-06-18 0:57 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-06-18 1:18 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
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