On Mon, Oct 12, 2020 at 03:51:29PM -0700, Aditya Swarup wrote:
On 10/12/20 2:29 PM, Lucas De Marchi wrote:DG1 has one more combo phy port, no TC and all irq handling goes through SDE, like for MCC. v2: Also change intel_hpd_pin_default() to include DG1 mapping v3: Rebase on hpd refactor Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Anshuman Gupta <anshuman.gupta@xxxxxxxxx> Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> Cc: Imre Deak <imre.deak@xxxxxxxxx> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> --- drivers/gpu/drm/i915/i915_irq.c | 58 +++++++++++++++++++++++++++++---- drivers/gpu/drm/i915/i915_reg.h | 8 +++++ 2 files changed, 59 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index b753c77c9a77..0d6e4894b505 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -152,6 +152,13 @@ static const u32 hpd_icp[HPD_NUM_PINS] = { [HPD_PORT_TC6] = 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), +}; + static void intel_hpd_init_pins(struct drm_i915_private *dev_priv) { struct i915_hotplug *hpd = &dev_priv->hotplug; @@ -176,11 +183,14 @@ 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) || - HAS_PCH_ICP(dev_priv) || HAS_PCH_MCC(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) || + HAS_PCH_ICP(dev_priv) || HAS_PCH_MCC(dev_priv)) hpd->pch_hpd = hpd_icp; else if (HAS_PCH_CNP(dev_priv) || HAS_PCH_SPT(dev_priv)) hpd->pch_hpd = hpd_spt; @@ -1079,6 +1089,22 @@ static bool icp_ddi_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 icp_tc_port_hotplug_long_detect(enum hpd_pin pin, u32 val) { switch (pin) { @@ -1863,12 +1889,19 @@ 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 (*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; } 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;Missing ddi_port_hotplug_long_detect assignment for HAS_PCH_MCC.
humn... indeed, thanks for spotting that.
Just a suggestion: We can by default assign ddi_port_hotplug_long_detect with icp_ddi_port_hotplug_long_detect outside the if else branching(during declaration). Assign the func ptr within platform checks only if it is different from icp like in the case for dg1.
either that or I could just fork a new dg1_irq_handler() function so we don't need the function pointer at all. Ville, since you removed the previous function pointers when refactoring the hotplug part, do you have a preference here? Lucas De Marchi
Aditya@@ -1879,6 +1912,7 @@ 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; } @@ -1891,7 +1925,7 @@ 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) { @@ -3252,6 +3286,12 @@ 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, + DG1_DDI_HPD_ENABLE_MASK, 0); +} + static void gen11_hpd_detection_setup(struct drm_i915_private *dev_priv) { u32 hotplug; @@ -3645,7 +3685,9 @@ 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_ddi_hpd_detection_setup(dev_priv, DG1_DDI_HPD_ENABLE_MASK); + else if (HAS_PCH_TGP(dev_priv)) { icp_ddi_hpd_detection_setup(dev_priv, TGP_DDI_HPD_ENABLE_MASK); icp_tc_hpd_detection_setup(dev_priv, TGP_TC_HPD_ENABLE_MASK); } else if (HAS_PCH_JSP(dev_priv)) { @@ -4162,7 +4204,9 @@ 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 49945e33f573..e7f1aac553d0 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8230,6 +8230,10 @@ 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) @@ -8429,6 +8433,10 @@ 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
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