[HPD_PORT_TC6] = GEN11_TC_HOTPLUG(HPD_PORT_TC6) | GEN11_TBT_HOTPLUG(HPD_PORT_TC6),
};
+static const u32 hpd_xelpdp[HPD_NUM_PINS] = {
+ [HPD_PORT_TC1] = XELPDP_TBT_HOTPLUG(HPD_PORT_TC1) | XELPDP_DP_ALT_HOTPLUG(HPD_PORT_TC1),
+ [HPD_PORT_TC2] = XELPDP_TBT_HOTPLUG(HPD_PORT_TC2) | XELPDP_DP_ALT_HOTPLUG(HPD_PORT_TC2),
+ [HPD_PORT_TC3] = XELPDP_TBT_HOTPLUG(HPD_PORT_TC3) | XELPDP_DP_ALT_HOTPLUG(HPD_PORT_TC3),
+ [HPD_PORT_TC4] = XELPDP_TBT_HOTPLUG(HPD_PORT_TC4) | XELPDP_DP_ALT_HOTPLUG(HPD_PORT_TC4),
+};
+
static const u32 hpd_icp[HPD_NUM_PINS] = {
[HPD_PORT_A] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_A),
[HPD_PORT_B] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_B),
[HPD_PORT_TC1] = SDE_TC_HOTPLUG_DG2(HPD_PORT_TC1),
};
+static const u32 hpd_mtp[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_A),
+ [HPD_PORT_B] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_B),
+ [HPD_PORT_TC1] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC1),
+ [HPD_PORT_TC2] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC2),
+ [HPD_PORT_TC3] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC3),
+ [HPD_PORT_TC4] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC4),
+};
+
static void intel_hpd_init_pins(struct drm_i915_private *dev_priv)
{
struct intel_hotplug *hpd = &dev_priv->display.hotplug;
return;
}
- if (DISPLAY_VER(dev_priv) >= 11)
+ if (DISPLAY_VER(dev_priv) >= 14)
+ hpd->hpd = hpd_xelpdp;
+ else if (DISPLAY_VER(dev_priv) >= 11)
hpd->hpd = hpd_gen11;
else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
hpd->hpd = hpd_bxt;
if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1)
hpd->pch_hpd = hpd_sde_dg1;
+ else if (INTEL_PCH_TYPE(dev_priv) >= PCH_MTP)
+ hpd->pch_hpd = hpd_mtp;
else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
hpd->pch_hpd = hpd_icp;
else if (HAS_PCH_CNP(dev_priv) || HAS_PCH_SPT(dev_priv))
cpt_serr_int_handler(dev_priv);
}
+static void xelpdp_pica_irq_handler(struct drm_i915_private *i915, u32 iir)
+{
+ enum hpd_pin pin;
+ u32 hotplug_trigger = iir & (XELPDP_DP_ALT_HOTPLUG_MASK | XELPDP_TBT_HOTPLUG_MASK);
+ u32 trigger_aux = iir & XELPDP_AUX_TC_MASK;
+ u32 pin_mask = 0, long_mask = 0;
+
+ for (pin = HPD_PORT_TC1; pin <= HPD_PORT_TC4; pin++) {
+ u32 val;
+
+ if (!(i915->display.hotplug.hpd[pin] & hotplug_trigger))
+ continue;
+
+ pin_mask |= BIT(pin);
+
+ val = intel_de_read(i915, XELPDP_PORT_HOTPLUG_CTL(pin));
+ intel_de_write(i915, XELPDP_PORT_HOTPLUG_CTL(pin), val);
+
+ if (val & (XELPDP_DP_ALT_HPD_LONG_DETECT | XELPDP_TBT_HPD_LONG_DETECT))
+ long_mask |= BIT(pin);
+ }
+
+ if (pin_mask) {
+ drm_dbg(&i915->drm,
+ "pica hotplug event received, stat 0x%08x, pins 0x%08x, long 0x%08x\n",
+ hotplug_trigger, pin_mask, long_mask);
+
+ intel_hpd_irq_handler(i915, pin_mask, long_mask);
+ }
+
+ if (trigger_aux)
+ dp_aux_irq_handler(i915);
+
+ if (!pin_mask && !trigger_aux)
+ drm_err(&i915->drm,
+ "Unexpected DE HPD/AUX interrupt 0x%08x\n", iir);
+}
+
static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
{
u32 ddi_hotplug_trigger = pch_iir & SDE_DDI_HOTPLUG_MASK_ICP;
return mask;
}
+static void gen8_read_and_ack_pch_irqs(struct drm_i915_private *i915, u32 *pch_iir, u32 *pica_iir)
+{
+ u32 pica_ier = 0;
+
+ *pica_iir = 0;
+ *pch_iir = intel_de_read(i915, SDEIIR);
+ if (!*pch_iir)
+ return;
+
+ /**
+ * PICA IER must be disabled/re-enabled around clearing PICA IIR and
+ * SDEIIR, to avoid losing PICA IRQs and to ensure that such IRQs set
+ * their flags both in the PICA and SDE IIR.
+ */
+ if (*pch_iir & SDE_PICAINTERRUPT) {
+ drm_WARN_ON(&i915->drm, INTEL_PCH_TYPE(i915) < PCH_MTP);
+
+ pica_ier = intel_de_rmw(i915, PICAINTERRUPT_IER, ~0, 0);
+ *pica_iir = intel_de_read(i915, PICAINTERRUPT_IIR);
+ intel_de_write(i915, PICAINTERRUPT_IIR, *pica_iir);
+ }
+
+ intel_de_write(i915, SDEIIR, *pch_iir);
+
+ if (pica_ier)
+ intel_de_write(i915, PICAINTERRUPT_IER, pica_ier);
+}
+
static irqreturn_t
gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
{
if (HAS_PCH_SPLIT(dev_priv) && !HAS_PCH_NOP(dev_priv) &&
master_ctl & GEN8_DE_PCH_IRQ) {
+ u32 pica_iir;
+
/*
* FIXME(BDW): Assume for now that the new interrupt handling
* scheme also closed the SDE interrupt handling race we've seen
* on older pch-split platforms. But this needs testing.
*/
- iir = intel_uncore_read(&dev_priv->uncore, SDEIIR);
+ gen8_read_and_ack_pch_irqs(dev_priv, &iir, &pica_iir);
if (iir) {
- intel_uncore_write(&dev_priv->uncore, SDEIIR, iir);
ret = IRQ_HANDLED;
+ if (pica_iir)
+ xelpdp_pica_irq_handler(dev_priv, pica_iir);
+
if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
icp_irq_handler(dev_priv, iir);
else if (INTEL_PCH_TYPE(dev_priv) >= PCH_SPT)
GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_);
GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_);
- GEN3_IRQ_RESET(uncore, GEN11_DE_HPD_);
+
+ if (DISPLAY_VER(dev_priv) >= 14)
+ GEN3_IRQ_RESET(uncore, PICAINTERRUPT_);
+ else
+ GEN3_IRQ_RESET(uncore, GEN11_DE_HPD_);
if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
GEN3_IRQ_RESET(uncore, SDE);
icp_hpd_irq_setup(dev_priv);
}
+static u32 mtp_ddi_hotplug_enables(struct intel_encoder *encoder)
+{
+ switch (encoder->hpd_pin) {
+ case HPD_PORT_A:
+ case HPD_PORT_B:
+ return SHOTPLUG_CTL_DDI_HPD_ENABLE(encoder->hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 mtp_tc_hotplug_enables(struct intel_encoder *encoder)
+{
+ switch (encoder->hpd_pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ return ICP_TC_HPD_ENABLE(encoder->hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static void mtp_ddi_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
+ (SHOTPLUG_CTL_DDI_HPD_ENABLE(HPD_PORT_A) |
+ SHOTPLUG_CTL_DDI_HPD_ENABLE(HPD_PORT_B)),
+ intel_hpd_hotplug_enables(i915, mtp_ddi_hotplug_enables));
+}
+
+static void mtp_tc_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ intel_de_rmw(i915, SHOTPLUG_CTL_TC,
+ (ICP_TC_HPD_ENABLE(HPD_PORT_TC1) |
+ ICP_TC_HPD_ENABLE(HPD_PORT_TC2) |
+ ICP_TC_HPD_ENABLE(HPD_PORT_TC3) |
+ ICP_TC_HPD_ENABLE(HPD_PORT_TC4)),
+ intel_hpd_hotplug_enables(i915, mtp_tc_hotplug_enables));
+}
+
+static void mtp_hpd_invert(struct drm_i915_private *i915)
+{
+ u32 val = (INVERT_DDIA_HPD |
+ INVERT_DDIB_HPD |
+ INVERT_DDIC_HPD |
+ INVERT_TC1_HPD |
+ INVERT_TC2_HPD |
+ INVERT_TC3_HPD |
+ INVERT_TC4_HPD |
+ INVERT_DDID_HPD_MTP |
+ INVERT_DDIE_HPD);
+ intel_de_rmw(i915, SOUTH_CHICKEN1, 0, val);
+}
+
+static void mtp_hpd_irq_setup(struct drm_i915_private *i915)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(i915, i915->display.hotplug.pch_hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(i915, i915->display.hotplug.pch_hpd);
+
+ intel_de_write(i915, SHPD_FILTER_CNT, SHPD_FILTER_CNT_500_ADJ);
+
+ mtp_hpd_invert(i915);
+ ibx_display_interrupt_update(i915, hotplug_irqs, enabled_irqs);
+
+ mtp_ddi_hpd_detection_setup(i915);
+ mtp_tc_hpd_detection_setup(i915);
+}
+
+static void xelpdp_pica_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ struct intel_encoder *encoder;
+ enum hpd_pin pin;
+ u32 available_pins = 0;
+
+ BUILD_BUG_ON(BITS_PER_TYPE(available_pins) < HPD_NUM_PINS);
+
+ for_each_intel_encoder(&i915->drm, encoder)
+ available_pins |= BIT(encoder->hpd_pin);
+
+ for (pin = HPD_PORT_TC1; pin <= HPD_PORT_TC4; pin++) {
+ u32 mask = XELPDP_TBT_HOTPLUG_ENABLE |
+ XELPDP_DP_ALT_HOTPLUG_ENABLE;
+
+ intel_de_rmw(i915, XELPDP_PORT_HOTPLUG_CTL(pin),
+ mask,
+ available_pins & BIT(pin) ? mask : 0);
+ }
+}
+
+static void xelpdp_hpd_irq_setup(struct drm_i915_private *i915)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(i915, i915->display.hotplug.hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(i915, i915->display.hotplug.hpd);
+
+ intel_de_rmw(i915, PICAINTERRUPT_IMR, hotplug_irqs,
+ ~enabled_irqs & hotplug_irqs);
+ intel_uncore_posting_read(&i915->uncore, PICAINTERRUPT_IMR);
+
+ xelpdp_pica_hpd_detection_setup(i915);
+
+ if (INTEL_PCH_TYPE(i915) >= PCH_MTP)
+ mtp_hpd_irq_setup(i915);
+}
+
static u32 spt_hotplug_enables(struct intel_encoder *encoder)
{
switch (encoder->hpd_pin) {
GEN3_IRQ_INIT(uncore, GEN8_DE_PORT_, ~de_port_masked, de_port_enables);
GEN3_IRQ_INIT(uncore, GEN8_DE_MISC_, ~de_misc_masked, de_misc_masked);
- if (DISPLAY_VER(dev_priv) >= 11) {
+ if (IS_DISPLAY_VER(dev_priv, 11, 13)) {
u32 de_hpd_masked = 0;
u32 de_hpd_enables = GEN11_DE_TC_HOTPLUG_MASK |
GEN11_DE_TBT_HOTPLUG_MASK;
}
}
+static void mtp_irq_postinstall(struct drm_i915_private *i915)
+{
+ struct intel_uncore *uncore = &i915->uncore;
+ u32 sde_mask = SDE_GMBUS_ICP | SDE_PICAINTERRUPT;
+ u32 de_hpd_mask = XELPDP_AUX_TC_MASK;
+ u32 de_hpd_enables = de_hpd_mask | XELPDP_DP_ALT_HOTPLUG_MASK |
+ XELPDP_TBT_HOTPLUG_MASK;
+
+ GEN3_IRQ_INIT(uncore, PICAINTERRUPT_, ~de_hpd_mask,
+ de_hpd_enables);
+
+ GEN3_IRQ_INIT(uncore, SDE, ~sde_mask, 0xffffffff);
+}
+
static void icp_irq_postinstall(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
GEN3_IRQ_INIT(uncore, GEN11_GU_MISC_, ~gu_misc_masked, gu_misc_masked);
if (HAS_DISPLAY(dev_priv)) {
- icp_irq_postinstall(dev_priv);
+ if (DISPLAY_VER(dev_priv) >= 14)
+ mtp_irq_postinstall(dev_priv);
+ else
+ icp_irq_postinstall(dev_priv);
+
gen8_de_irq_postinstall(dev_priv);
intel_uncore_write(&dev_priv->uncore, GEN11_DISPLAY_INT_CTL,
GEN11_DISPLAY_IRQ_ENABLE);
}
HPD_FUNCS(i915);
+HPD_FUNCS(xelpdp);
HPD_FUNCS(dg1);
HPD_FUNCS(gen11);
HPD_FUNCS(bxt);
dev_priv->display.funcs.hotplug = &icp_hpd_funcs;
else if (HAS_PCH_DG1(dev_priv))
dev_priv->display.funcs.hotplug = &dg1_hpd_funcs;
+ else if (DISPLAY_VER(dev_priv) >= 14)
+ dev_priv->display.funcs.hotplug = &xelpdp_hpd_funcs;
else if (DISPLAY_VER(dev_priv) >= 11)
dev_priv->display.funcs.hotplug = &gen11_hpd_funcs;
else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
#define GEN11_HOTPLUG_CTL_SHORT_DETECT(hpd_pin) (1 << (_HPD_PIN_TC(hpd_pin) * 4))
#define GEN11_HOTPLUG_CTL_NO_DETECT(hpd_pin) (0 << (_HPD_PIN_TC(hpd_pin) * 4))
+#define PICAINTERRUPT_ISR _MMIO(0x16FE50)
+#define PICAINTERRUPT_IMR _MMIO(0x16FE54)
+#define PICAINTERRUPT_IIR _MMIO(0x16FE58)
+#define PICAINTERRUPT_IER _MMIO(0x16FE5C)
+
+#define XELPDP_DP_ALT_HOTPLUG(hpd_pin) REG_BIT(16 + _HPD_PIN_TC(hpd_pin))
+#define XELPDP_DP_ALT_HOTPLUG_MASK REG_GENMASK(19, 16)
+
+#define XELPDP_AUX_TC(hpd_pin) REG_BIT(8 + _HPD_PIN_TC(hpd_pin))
+#define XELPDP_AUX_TC_MASK REG_GENMASK(11, 8)
+
+#define XELPDP_TBT_HOTPLUG(hpd_pin) REG_BIT(_HPD_PIN_TC(hpd_pin))
+#define XELPDP_TBT_HOTPLUG_MASK REG_GENMASK(3, 0)
+
+#define XELPDP_PORT_HOTPLUG_CTL(hpd_pin) _MMIO(0x16F270 + (_HPD_PIN_TC(hpd_pin) * 0x200))
+#define XELPDP_TBT_HOTPLUG_ENABLE REG_BIT(6)
+#define XELPDP_TBT_HPD_LONG_DETECT REG_BIT(5)
+#define XELPDP_TBT_HPD_SHORT_DETECT REG_BIT(4)
+#define XELPDP_DP_ALT_HOTPLUG_ENABLE REG_BIT(2)
+#define XELPDP_DP_ALT_HPD_LONG_DETECT REG_BIT(1)
+#define XELPDP_DP_ALT_HPD_SHORT_DETECT REG_BIT(0)
+
#define ILK_DISPLAY_CHICKEN2 _MMIO(0x42004)
/* Required on all Ironlake and Sandybridge according to the B-Spec. */
#define ILK_ELPIN_409_SELECT (1 << 25)
SDE_FDI_RXB_CPT | \
SDE_FDI_RXA_CPT)
-/* south display engine interrupt: ICP/TGP */
+/* south display engine interrupt: ICP/TGP/MTP */
+#define SDE_PICAINTERRUPT REG_BIT(31)
#define SDE_GMBUS_ICP (1 << 23)
#define SDE_TC_HOTPLUG_ICP(hpd_pin) REG_BIT(24 + _HPD_PIN_TC(hpd_pin))
#define SDE_TC_HOTPLUG_DG2(hpd_pin) REG_BIT(25 + _HPD_PIN_TC(hpd_pin)) /* sigh */
#define SOUTH_CHICKEN1 _MMIO(0xc2000)
#define FDIA_PHASE_SYNC_SHIFT_OVR 19
#define FDIA_PHASE_SYNC_SHIFT_EN 18
+#define INVERT_DDIE_HPD REG_BIT(28)
+#define INVERT_DDID_HPD_MTP REG_BIT(27)
+#define INVERT_TC4_HPD REG_BIT(26)
+#define INVERT_TC3_HPD REG_BIT(25)
+#define INVERT_TC2_HPD REG_BIT(24)
+#define INVERT_TC1_HPD REG_BIT(23)
#define INVERT_DDID_HPD (1 << 18)
#define INVERT_DDIC_HPD (1 << 17)
#define INVERT_DDIB_HPD (1 << 16)
projects / users / hch / xfs.git / commitdiff