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drm/i915: Introduce Jasper Lake PCH

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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@intel.com>
Cc: James Ausmus <james.ausmus@intel.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015162854.30546-1-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2019-10-15 09:28:54 -07:00
parent fcb9bba47f
commit 943682e3bd
3 changed files with 32 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
drivers/gpu/drm/i915/i915_irq.c
View file

@ -2248,12 +2248,19 @@ 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);
tc_port_hotplug_long_detect = icp_tc_port_hotplug_long_detect;
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;
@ -3383,6 +3390,19 @@ 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;
@ -4314,7 +4334,9 @@ 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;

6
drivers/gpu/drm/i915/intel_pch.c
View file

@ -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;
}

5
drivers/gpu/drm/i915/intel_pch.h
View file

@ -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)