[Intel-gfx] [PATCH v3] drm/i915: Introduce Jasper Lake PCH
Matt Roper
matthew.d.roper at intel.com
Tue Oct 15 16:28:54 UTC 2019
The Jasper Lake PCH follows ICP/TGP's south display behavior and is
identical to MCC graphics-wise except that it does not use the unusual
(port C -> TC1) pin mapping that MCC does.
Also, it turns out the extra PCH ID that we had previously thought was a
form of MCC is actually a second ID for JSP (i.e., port C uses the port
C pins instead of the TC1 pins).
v2:
- Also update the port masks (not just the pin table) in
mcc_hpd_irq_setup. (Vivek)
v3:
- Break jsp_hpd_irq_setup out into its own function for clarity.
(Vivek)
Cc: José Roberto de Souza <jose.souza at intel.com>
Cc: James Ausmus <james.ausmus at intel.com>
Cc: Vivek Kasireddy <vivek.kasireddy at intel.com>
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
Reviewed-by: Vivek Kasireddy <vivek.kasireddy at intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 24 +++++++++++++++++++++++-
drivers/gpu/drm/i915/intel_pch.c | 6 +++++-
drivers/gpu/drm/i915/intel_pch.h | 5 ++++-
3 files changed, 32 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d20ca02d3166..448390ad2128 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2248,11 +2248,18 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
tc_hotplug_trigger = pch_iir & SDE_TC_MASK_TGP;
tc_port_hotplug_long_detect = tgp_tc_port_hotplug_long_detect;
pins = hpd_tgp;
+ } else if (HAS_PCH_JSP(dev_priv)) {
+ ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_TGP;
+ tc_hotplug_trigger = 0;
+ pins = hpd_tgp;
} else if (HAS_PCH_MCC(dev_priv)) {
ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;
tc_hotplug_trigger = pch_iir & SDE_TC_HOTPLUG_ICP(PORT_TC1);
pins = hpd_icp;
} else {
+ WARN(!HAS_PCH_ICP(dev_priv),
+ "Unrecognized PCH type 0x%x\n", INTEL_PCH_TYPE(dev_priv));
+
ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;
tc_hotplug_trigger = pch_iir & SDE_TC_MASK_ICP;
tc_port_hotplug_long_detect = icp_tc_port_hotplug_long_detect;
@@ -3384,6 +3391,19 @@ static void mcc_hpd_irq_setup(struct drm_i915_private *dev_priv)
hpd_icp);
}
+/*
+ * JSP behaves exactly the same as MCC above except that port C is mapped to
+ * the DDI-C pins instead of the TC1 pins. This means we should follow TGP's
+ * masks & tables rather than ICP's masks & tables.
+ */
+static void jsp_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ icp_hpd_irq_setup(dev_priv,
+ SDE_DDI_MASK_TGP, 0,
+ TGP_DDI_HPD_ENABLE_MASK, 0,
+ hpd_tgp);
+}
+
static void gen11_hpd_detection_setup(struct drm_i915_private *dev_priv)
{
u32 hotplug;
@@ -4315,7 +4335,9 @@ 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_MCC(dev_priv))
+ 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;
else if (INTEL_GEN(dev_priv) >= 11)
dev_priv->display.hpd_irq_setup = gen11_hpd_irq_setup;
diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
index 15f8bff141f9..1035d3d46fd8 100644
--- a/drivers/gpu/drm/i915/intel_pch.c
+++ b/drivers/gpu/drm/i915/intel_pch.c
@@ -79,7 +79,6 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
WARN_ON(!IS_ICELAKE(dev_priv));
return PCH_ICP;
case INTEL_PCH_MCC_DEVICE_ID_TYPE:
- case INTEL_PCH_MCC2_DEVICE_ID_TYPE:
DRM_DEBUG_KMS("Found Mule Creek Canyon PCH\n");
WARN_ON(!IS_ELKHARTLAKE(dev_priv));
return PCH_MCC;
@@ -87,6 +86,11 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
DRM_DEBUG_KMS("Found Tiger Lake LP PCH\n");
WARN_ON(!IS_TIGERLAKE(dev_priv));
return PCH_TGP;
+ case INTEL_PCH_JSP_DEVICE_ID_TYPE:
+ case INTEL_PCH_JSP2_DEVICE_ID_TYPE:
+ DRM_DEBUG_KMS("Found Jasper Lake PCH\n");
+ WARN_ON(!IS_ELKHARTLAKE(dev_priv));
+ return PCH_JSP;
default:
return PCH_NONE;
}
diff --git a/drivers/gpu/drm/i915/intel_pch.h b/drivers/gpu/drm/i915/intel_pch.h
index c29c81ec7971..f4dc18c34291 100644
--- a/drivers/gpu/drm/i915/intel_pch.h
+++ b/drivers/gpu/drm/i915/intel_pch.h
@@ -23,6 +23,7 @@ enum intel_pch {
PCH_SPT, /* Sunrisepoint/Kaby Lake PCH */
PCH_CNP, /* Cannon/Comet Lake PCH */
PCH_ICP, /* Ice Lake PCH */
+ PCH_JSP, /* Jasper Lake PCH */
PCH_MCC, /* Mule Creek Canyon PCH */
PCH_TGP, /* Tiger Lake PCH */
};
@@ -44,14 +45,16 @@ enum intel_pch {
#define INTEL_PCH_CMP2_DEVICE_ID_TYPE 0x0680
#define INTEL_PCH_ICP_DEVICE_ID_TYPE 0x3480
#define INTEL_PCH_MCC_DEVICE_ID_TYPE 0x4B00
-#define INTEL_PCH_MCC2_DEVICE_ID_TYPE 0x3880
#define INTEL_PCH_TGP_DEVICE_ID_TYPE 0xA080
+#define INTEL_PCH_JSP_DEVICE_ID_TYPE 0x4D80
+#define INTEL_PCH_JSP2_DEVICE_ID_TYPE 0x3880
#define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
#define INTEL_PCH_P3X_DEVICE_ID_TYPE 0x7000
#define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 has 2918 */
#define INTEL_PCH_TYPE(dev_priv) ((dev_priv)->pch_type)
#define INTEL_PCH_ID(dev_priv) ((dev_priv)->pch_id)
+#define HAS_PCH_JSP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_JSP)
#define HAS_PCH_MCC(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_MCC)
#define HAS_PCH_TGP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_TGP)
#define HAS_PCH_ICP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_ICP)
--
2.21.0
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