* [Intel-gfx] [PATCH v3 2/3] drm/i915/irq: split out hotplug irq handling
2023-05-15 10:17 [Intel-gfx] [PATCH v3 1/3] drm/i915/irq: convert gen8_de_irq_handler() to void Jani Nikula
@ 2023-05-15 10:17 ` Jani Nikula
2023-05-15 10:17 ` [Intel-gfx] [PATCH v3 3/3] drm/i915/irq: split out display " Jani Nikula
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jani Nikula @ 2023-05-15 10:17 UTC (permalink / raw)
To: intel-gfx; +Cc: jani.nikula, rodrigo.vivi
Split hotplug irq handling out of i915_irq.[ch] into
display/intel_hotplug_irq.[ch].
The line between the new intel_hotplug_irq.[ch] and the existing
intel_hotplug.[ch] needs further clarification, but the first step is to
move the stuff out of i915_irq.[ch].
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/display/intel_crt.c | 1 +
drivers/gpu/drm/i915/display/intel_dp.c | 1 +
drivers/gpu/drm/i915/display/intel_hotplug.c | 1 +
.../gpu/drm/i915/display/intel_hotplug_irq.c | 1442 ++++++++++++++++
.../gpu/drm/i915/display/intel_hotplug_irq.h | 35 +
drivers/gpu/drm/i915/i915_irq.c | 1504 +----------------
drivers/gpu/drm/i915/i915_irq.h | 12 +-
8 files changed, 1525 insertions(+), 1472 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_hotplug_irq.c
create mode 100644 drivers/gpu/drm/i915/display/intel_hotplug_irq.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 7587fe856e67..7f7569c5f9a9 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -261,6 +261,7 @@ i915-y += \
display/intel_hdcp.o \
display/intel_hdcp_gsc.o \
display/intel_hotplug.o \
+ display/intel_hotplug_irq.o \
display/intel_hti.o \
display/intel_load_detect.o \
display/intel_lpe_audio.o \
diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index f0f4897b3c3c..673c03646696 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -48,6 +48,7 @@
#include "intel_fifo_underrun.h"
#include "intel_gmbus.h"
#include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
#include "intel_load_detect.h"
#include "intel_pch_display.h"
#include "intel_pch_refclk.h"
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 0cc57681dc4d..b35ab251f543 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -68,6 +68,7 @@
#include "intel_hdcp.h"
#include "intel_hdmi.h"
#include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
#include "intel_lspcon.h"
#include "intel_lvds.h"
#include "intel_panel.h"
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index b12900446828..23a5e1a875f1 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -27,6 +27,7 @@
#include "i915_irq.h"
#include "intel_display_types.h"
#include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
/**
* DOC: Hotplug
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
new file mode 100644
index 000000000000..1d7ae49e073e
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
@@ -0,0 +1,1442 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "i915_irq.h"
+#include "i915_reg.h"
+#include "intel_de.h"
+#include "intel_display_types.h"
+#include "intel_dp_aux.h"
+#include "intel_gmbus.h"
+#include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
+
+typedef bool (*long_pulse_detect_func)(enum hpd_pin pin, u32 val);
+typedef u32 (*hotplug_enables_func)(struct intel_encoder *encoder);
+typedef u32 (*hotplug_mask_func)(enum hpd_pin pin);
+
+static const u32 hpd_ilk[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = DE_DP_A_HOTPLUG,
+};
+
+static const u32 hpd_ivb[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = DE_DP_A_HOTPLUG_IVB,
+};
+
+static const u32 hpd_bdw[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
+};
+
+static const u32 hpd_ibx[HPD_NUM_PINS] = {
+ [HPD_CRT] = SDE_CRT_HOTPLUG,
+ [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG,
+ [HPD_PORT_B] = SDE_PORTB_HOTPLUG,
+ [HPD_PORT_C] = SDE_PORTC_HOTPLUG,
+ [HPD_PORT_D] = SDE_PORTD_HOTPLUG,
+};
+
+static const u32 hpd_cpt[HPD_NUM_PINS] = {
+ [HPD_CRT] = SDE_CRT_HOTPLUG_CPT,
+ [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG_CPT,
+ [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT,
+ [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT,
+ [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT,
+};
+
+static const u32 hpd_spt[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = SDE_PORTA_HOTPLUG_SPT,
+ [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT,
+ [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT,
+ [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT,
+ [HPD_PORT_E] = SDE_PORTE_HOTPLUG_SPT,
+};
+
+static const u32 hpd_mask_i915[HPD_NUM_PINS] = {
+ [HPD_CRT] = CRT_HOTPLUG_INT_EN,
+ [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_EN,
+ [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_EN,
+ [HPD_PORT_B] = PORTB_HOTPLUG_INT_EN,
+ [HPD_PORT_C] = PORTC_HOTPLUG_INT_EN,
+ [HPD_PORT_D] = PORTD_HOTPLUG_INT_EN,
+};
+
+static const u32 hpd_status_g4x[HPD_NUM_PINS] = {
+ [HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
+ [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_G4X,
+ [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_G4X,
+ [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS,
+ [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS,
+ [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS,
+};
+
+static const u32 hpd_status_i915[HPD_NUM_PINS] = {
+ [HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
+ [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I915,
+ [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_I915,
+ [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS,
+ [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS,
+ [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS,
+};
+
+static const u32 hpd_bxt[HPD_NUM_PINS] = {
+ [HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
+ [HPD_PORT_B] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_B),
+ [HPD_PORT_C] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_C),
+};
+
+static const u32 hpd_gen11[HPD_NUM_PINS] = {
+ [HPD_PORT_TC1] = GEN11_TC_HOTPLUG(HPD_PORT_TC1) | GEN11_TBT_HOTPLUG(HPD_PORT_TC1),
+ [HPD_PORT_TC2] = GEN11_TC_HOTPLUG(HPD_PORT_TC2) | GEN11_TBT_HOTPLUG(HPD_PORT_TC2),
+ [HPD_PORT_TC3] = GEN11_TC_HOTPLUG(HPD_PORT_TC3) | GEN11_TBT_HOTPLUG(HPD_PORT_TC3),
+ [HPD_PORT_TC4] = GEN11_TC_HOTPLUG(HPD_PORT_TC4) | GEN11_TBT_HOTPLUG(HPD_PORT_TC4),
+ [HPD_PORT_TC5] = GEN11_TC_HOTPLUG(HPD_PORT_TC5) | GEN11_TBT_HOTPLUG(HPD_PORT_TC5),
+ [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_C] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_C),
+ [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),
+ [HPD_PORT_TC5] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC5),
+ [HPD_PORT_TC6] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC6),
+};
+
+static const u32 hpd_sde_dg1[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_C] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_C),
+ [HPD_PORT_D] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_D),
+ [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;
+
+ if (HAS_GMCH(dev_priv)) {
+ if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) ||
+ IS_CHERRYVIEW(dev_priv))
+ hpd->hpd = hpd_status_g4x;
+ else
+ hpd->hpd = hpd_status_i915;
+ return;
+ }
+
+ 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;
+ else if (DISPLAY_VER(dev_priv) == 9)
+ hpd->hpd = NULL; /* no north HPD on SKL */
+ else if (DISPLAY_VER(dev_priv) >= 8)
+ hpd->hpd = hpd_bdw;
+ else if (DISPLAY_VER(dev_priv) >= 7)
+ hpd->hpd = hpd_ivb;
+ else
+ hpd->hpd = hpd_ilk;
+
+ if ((INTEL_PCH_TYPE(dev_priv) < PCH_DG1) &&
+ (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv)))
+ return;
+
+ 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))
+ hpd->pch_hpd = hpd_spt;
+ else if (HAS_PCH_LPT(dev_priv) || HAS_PCH_CPT(dev_priv))
+ hpd->pch_hpd = hpd_cpt;
+ else if (HAS_PCH_IBX(dev_priv))
+ hpd->pch_hpd = hpd_ibx;
+ else
+ MISSING_CASE(INTEL_PCH_TYPE(dev_priv));
+}
+
+/* For display hotplug interrupt */
+void i915_hotplug_interrupt_update_locked(struct drm_i915_private *dev_priv,
+ u32 mask, u32 bits)
+{
+ lockdep_assert_held(&dev_priv->irq_lock);
+ drm_WARN_ON(&dev_priv->drm, bits & ~mask);
+
+ intel_uncore_rmw(&dev_priv->uncore, PORT_HOTPLUG_EN, mask, bits);
+}
+
+/**
+ * i915_hotplug_interrupt_update - update hotplug interrupt enable
+ * @dev_priv: driver private
+ * @mask: bits to update
+ * @bits: bits to enable
+ * NOTE: the HPD enable bits are modified both inside and outside
+ * of an interrupt context. To avoid that read-modify-write cycles
+ * interfer, these bits are protected by a spinlock. Since this
+ * function is usually not called from a context where the lock is
+ * held already, this function acquires the lock itself. A non-locking
+ * version is also available.
+ */
+void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
+ u32 mask,
+ u32 bits)
+{
+ spin_lock_irq(&dev_priv->irq_lock);
+ i915_hotplug_interrupt_update_locked(dev_priv, mask, bits);
+ spin_unlock_irq(&dev_priv->irq_lock);
+}
+
+static bool gen11_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ case HPD_PORT_TC5:
+ case HPD_PORT_TC6:
+ return val & GEN11_HOTPLUG_CTL_LONG_DETECT(pin);
+ default:
+ return false;
+ }
+}
+
+static bool bxt_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_A:
+ return val & PORTA_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_B:
+ return val & PORTB_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_C:
+ return val & PORTC_HOTPLUG_LONG_DETECT;
+ default:
+ return false;
+ }
+}
+
+static bool icp_ddi_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_A:
+ case HPD_PORT_B:
+ case HPD_PORT_C:
+ case HPD_PORT_D:
+ return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(pin);
+ default:
+ return false;
+ }
+}
+
+static bool icp_tc_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ case HPD_PORT_TC5:
+ case HPD_PORT_TC6:
+ return val & ICP_TC_HPD_LONG_DETECT(pin);
+ default:
+ return false;
+ }
+}
+
+static bool spt_port_hotplug2_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_E:
+ return val & PORTE_HOTPLUG_LONG_DETECT;
+ default:
+ return false;
+ }
+}
+
+static bool spt_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_A:
+ return val & PORTA_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_B:
+ return val & PORTB_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_C:
+ return val & PORTC_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_D:
+ return val & PORTD_HOTPLUG_LONG_DETECT;
+ default:
+ return false;
+ }
+}
+
+static bool ilk_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_A:
+ return val & DIGITAL_PORTA_HOTPLUG_LONG_DETECT;
+ default:
+ return false;
+ }
+}
+
+static bool pch_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_B:
+ return val & PORTB_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_C:
+ return val & PORTC_HOTPLUG_LONG_DETECT;
+ case HPD_PORT_D:
+ return val & PORTD_HOTPLUG_LONG_DETECT;
+ default:
+ return false;
+ }
+}
+
+static bool i9xx_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
+{
+ switch (pin) {
+ case HPD_PORT_B:
+ return val & PORTB_HOTPLUG_INT_LONG_PULSE;
+ case HPD_PORT_C:
+ return val & PORTC_HOTPLUG_INT_LONG_PULSE;
+ case HPD_PORT_D:
+ return val & PORTD_HOTPLUG_INT_LONG_PULSE;
+ default:
+ return false;
+ }
+}
+
+/*
+ * Get a bit mask of pins that have triggered, and which ones may be long.
+ * This can be called multiple times with the same masks to accumulate
+ * hotplug detection results from several registers.
+ *
+ * Note that the caller is expected to zero out the masks initially.
+ */
+static void intel_get_hpd_pins(struct drm_i915_private *dev_priv,
+ u32 *pin_mask, u32 *long_mask,
+ u32 hotplug_trigger, u32 dig_hotplug_reg,
+ const u32 hpd[HPD_NUM_PINS],
+ bool long_pulse_detect(enum hpd_pin pin, u32 val))
+{
+ enum hpd_pin pin;
+
+ BUILD_BUG_ON(BITS_PER_TYPE(*pin_mask) < HPD_NUM_PINS);
+
+ for_each_hpd_pin(pin) {
+ if ((hpd[pin] & hotplug_trigger) == 0)
+ continue;
+
+ *pin_mask |= BIT(pin);
+
+ if (long_pulse_detect(pin, dig_hotplug_reg))
+ *long_mask |= BIT(pin);
+ }
+
+ drm_dbg(&dev_priv->drm,
+ "hotplug event received, stat 0x%08x, dig 0x%08x, pins 0x%08x, long 0x%08x\n",
+ hotplug_trigger, dig_hotplug_reg, *pin_mask, *long_mask);
+}
+
+static u32 intel_hpd_enabled_irqs(struct drm_i915_private *dev_priv,
+ const u32 hpd[HPD_NUM_PINS])
+{
+ struct intel_encoder *encoder;
+ u32 enabled_irqs = 0;
+
+ for_each_intel_encoder(&dev_priv->drm, encoder)
+ if (dev_priv->display.hotplug.stats[encoder->hpd_pin].state == HPD_ENABLED)
+ enabled_irqs |= hpd[encoder->hpd_pin];
+
+ return enabled_irqs;
+}
+
+static u32 intel_hpd_hotplug_irqs(struct drm_i915_private *dev_priv,
+ const u32 hpd[HPD_NUM_PINS])
+{
+ struct intel_encoder *encoder;
+ u32 hotplug_irqs = 0;
+
+ for_each_intel_encoder(&dev_priv->drm, encoder)
+ hotplug_irqs |= hpd[encoder->hpd_pin];
+
+ return hotplug_irqs;
+}
+
+static u32 intel_hpd_hotplug_mask(struct drm_i915_private *i915,
+ hotplug_mask_func hotplug_mask)
+{
+ enum hpd_pin pin;
+ u32 hotplug = 0;
+
+ for_each_hpd_pin(pin)
+ hotplug |= hotplug_mask(pin);
+
+ return hotplug;
+}
+
+static u32 intel_hpd_hotplug_enables(struct drm_i915_private *i915,
+ hotplug_enables_func hotplug_enables)
+{
+ struct intel_encoder *encoder;
+ u32 hotplug = 0;
+
+ for_each_intel_encoder(&i915->drm, encoder)
+ hotplug |= hotplug_enables(encoder);
+
+ return hotplug;
+}
+
+u32 i9xx_hpd_irq_ack(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_status = 0, hotplug_status_mask;
+ int i;
+
+ if (IS_G4X(dev_priv) ||
+ IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+ hotplug_status_mask = HOTPLUG_INT_STATUS_G4X |
+ DP_AUX_CHANNEL_MASK_INT_STATUS_G4X;
+ else
+ hotplug_status_mask = HOTPLUG_INT_STATUS_I915;
+
+ /*
+ * We absolutely have to clear all the pending interrupt
+ * bits in PORT_HOTPLUG_STAT. Otherwise the ISR port
+ * interrupt bit won't have an edge, and the i965/g4x
+ * edge triggered IIR will not notice that an interrupt
+ * is still pending. We can't use PORT_HOTPLUG_EN to
+ * guarantee the edge as the act of toggling the enable
+ * bits can itself generate a new hotplug interrupt :(
+ */
+ for (i = 0; i < 10; i++) {
+ u32 tmp = intel_uncore_read(&dev_priv->uncore, PORT_HOTPLUG_STAT) & hotplug_status_mask;
+
+ if (tmp == 0)
+ return hotplug_status;
+
+ hotplug_status |= tmp;
+ intel_uncore_write(&dev_priv->uncore, PORT_HOTPLUG_STAT, hotplug_status);
+ }
+
+ drm_WARN_ONCE(&dev_priv->drm, 1,
+ "PORT_HOTPLUG_STAT did not clear (0x%08x)\n",
+ intel_uncore_read(&dev_priv->uncore, PORT_HOTPLUG_STAT));
+
+ return hotplug_status;
+}
+
+void i9xx_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 hotplug_status)
+{
+ u32 pin_mask = 0, long_mask = 0;
+ u32 hotplug_trigger;
+
+ if (IS_G4X(dev_priv) ||
+ IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+ hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_G4X;
+ else
+ hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_I915;
+
+ if (hotplug_trigger) {
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug_trigger, hotplug_trigger,
+ dev_priv->display.hotplug.hpd,
+ i9xx_port_hotplug_long_detect);
+
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+ }
+
+ if ((IS_G4X(dev_priv) ||
+ IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
+ hotplug_status & DP_AUX_CHANNEL_MASK_INT_STATUS_G4X)
+ intel_dp_aux_irq_handler(dev_priv);
+}
+
+void ibx_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 hotplug_trigger)
+{
+ u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
+
+ /*
+ * Somehow the PCH doesn't seem to really ack the interrupt to the CPU
+ * unless we touch the hotplug register, even if hotplug_trigger is
+ * zero. Not acking leads to "The master control interrupt lied (SDE)!"
+ * errors.
+ */
+ dig_hotplug_reg = intel_uncore_read(&dev_priv->uncore, PCH_PORT_HOTPLUG);
+ if (!hotplug_trigger) {
+ u32 mask = PORTA_HOTPLUG_STATUS_MASK |
+ PORTD_HOTPLUG_STATUS_MASK |
+ PORTC_HOTPLUG_STATUS_MASK |
+ PORTB_HOTPLUG_STATUS_MASK;
+ dig_hotplug_reg &= ~mask;
+ }
+
+ intel_uncore_write(&dev_priv->uncore, PCH_PORT_HOTPLUG, dig_hotplug_reg);
+ if (!hotplug_trigger)
+ return;
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.pch_hpd,
+ pch_port_hotplug_long_detect);
+
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+}
+
+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)
+ intel_dp_aux_irq_handler(i915);
+
+ if (!pin_mask && !trigger_aux)
+ drm_err(&i915->drm,
+ "Unexpected DE HPD/AUX interrupt 0x%08x\n", iir);
+}
+
+void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
+{
+ u32 ddi_hotplug_trigger = pch_iir & SDE_DDI_HOTPLUG_MASK_ICP;
+ u32 tc_hotplug_trigger = pch_iir & SDE_TC_HOTPLUG_MASK_ICP;
+ u32 pin_mask = 0, long_mask = 0;
+
+ if (ddi_hotplug_trigger) {
+ u32 dig_hotplug_reg;
+
+ /* Locking due to DSI native GPIO sequences */
+ spin_lock(&dev_priv->irq_lock);
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_DDI, 0, 0);
+ spin_unlock(&dev_priv->irq_lock);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ ddi_hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.pch_hpd,
+ icp_ddi_port_hotplug_long_detect);
+ }
+
+ if (tc_hotplug_trigger) {
+ u32 dig_hotplug_reg;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_TC, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ tc_hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.pch_hpd,
+ icp_tc_port_hotplug_long_detect);
+ }
+
+ if (pin_mask)
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+
+ if (pch_iir & SDE_GMBUS_ICP)
+ intel_gmbus_irq_handler(dev_priv);
+}
+
+void spt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
+{
+ u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_SPT &
+ ~SDE_PORTE_HOTPLUG_SPT;
+ u32 hotplug2_trigger = pch_iir & SDE_PORTE_HOTPLUG_SPT;
+ u32 pin_mask = 0, long_mask = 0;
+
+ if (hotplug_trigger) {
+ u32 dig_hotplug_reg;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.pch_hpd,
+ spt_port_hotplug_long_detect);
+ }
+
+ if (hotplug2_trigger) {
+ u32 dig_hotplug_reg;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG2, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug2_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.pch_hpd,
+ spt_port_hotplug2_long_detect);
+ }
+
+ if (pin_mask)
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+
+ if (pch_iir & SDE_GMBUS_CPT)
+ intel_gmbus_irq_handler(dev_priv);
+}
+
+void ilk_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 hotplug_trigger)
+{
+ u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, DIGITAL_PORT_HOTPLUG_CNTRL, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.hpd,
+ ilk_port_hotplug_long_detect);
+
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+}
+
+void bxt_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 hotplug_trigger)
+{
+ u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ hotplug_trigger, dig_hotplug_reg,
+ dev_priv->display.hotplug.hpd,
+ bxt_port_hotplug_long_detect);
+
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+}
+
+void gen11_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 iir)
+{
+ u32 pin_mask = 0, long_mask = 0;
+ u32 trigger_tc = iir & GEN11_DE_TC_HOTPLUG_MASK;
+ u32 trigger_tbt = iir & GEN11_DE_TBT_HOTPLUG_MASK;
+
+ if (trigger_tc) {
+ u32 dig_hotplug_reg;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, GEN11_TC_HOTPLUG_CTL, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ trigger_tc, dig_hotplug_reg,
+ dev_priv->display.hotplug.hpd,
+ gen11_port_hotplug_long_detect);
+ }
+
+ if (trigger_tbt) {
+ u32 dig_hotplug_reg;
+
+ dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, GEN11_TBT_HOTPLUG_CTL, 0, 0);
+
+ intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
+ trigger_tbt, dig_hotplug_reg,
+ dev_priv->display.hotplug.hpd,
+ gen11_port_hotplug_long_detect);
+ }
+
+ if (pin_mask)
+ intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
+ else
+ drm_err(&dev_priv->drm,
+ "Unexpected DE HPD interrupt 0x%08x\n", iir);
+}
+
+static u32 ibx_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ return PORTA_HOTPLUG_ENABLE;
+ case HPD_PORT_B:
+ return PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_MASK;
+ case HPD_PORT_C:
+ return PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_MASK;
+ case HPD_PORT_D:
+ return PORTD_HOTPLUG_ENABLE | PORTD_PULSE_DURATION_MASK;
+ default:
+ return 0;
+ }
+}
+
+static u32 ibx_hotplug_enables(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ switch (encoder->hpd_pin) {
+ case HPD_PORT_A:
+ /*
+ * When CPU and PCH are on the same package, port A
+ * HPD must be enabled in both north and south.
+ */
+ return HAS_PCH_LPT_LP(i915) ?
+ PORTA_HOTPLUG_ENABLE : 0;
+ case HPD_PORT_B:
+ return PORTB_HOTPLUG_ENABLE |
+ PORTB_PULSE_DURATION_2ms;
+ case HPD_PORT_C:
+ return PORTC_HOTPLUG_ENABLE |
+ PORTC_PULSE_DURATION_2ms;
+ case HPD_PORT_D:
+ return PORTD_HOTPLUG_ENABLE |
+ PORTD_PULSE_DURATION_2ms;
+ default:
+ return 0;
+ }
+}
+
+static void ibx_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ /*
+ * Enable digital hotplug on the PCH, and configure the DP short pulse
+ * duration to 2ms (which is the minimum in the Display Port spec).
+ * The pulse duration bits are reserved on LPT+.
+ */
+ intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
+ intel_hpd_hotplug_mask(dev_priv, ibx_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, ibx_hotplug_enables));
+}
+
+static void ibx_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
+ ibx_hotplug_mask(encoder->hpd_pin),
+ ibx_hotplug_enables(encoder));
+}
+
+static void ibx_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+
+ ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
+
+ ibx_hpd_detection_setup(dev_priv);
+}
+
+static u32 icp_ddi_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ case HPD_PORT_B:
+ case HPD_PORT_C:
+ case HPD_PORT_D:
+ return SHOTPLUG_CTL_DDI_HPD_ENABLE(hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 icp_ddi_hotplug_enables(struct intel_encoder *encoder)
+{
+ return icp_ddi_hotplug_mask(encoder->hpd_pin);
+}
+
+static u32 icp_tc_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ case HPD_PORT_TC5:
+ case HPD_PORT_TC6:
+ return ICP_TC_HPD_ENABLE(hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 icp_tc_hotplug_enables(struct intel_encoder *encoder)
+{
+ return icp_tc_hotplug_mask(encoder->hpd_pin);
+}
+
+static void icp_ddi_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_DDI,
+ intel_hpd_hotplug_mask(dev_priv, icp_ddi_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, icp_ddi_hotplug_enables));
+}
+
+static void icp_ddi_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, SHOTPLUG_CTL_DDI,
+ icp_ddi_hotplug_mask(encoder->hpd_pin),
+ icp_ddi_hotplug_enables(encoder));
+}
+
+static void icp_tc_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_TC,
+ intel_hpd_hotplug_mask(dev_priv, icp_tc_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, icp_tc_hotplug_enables));
+}
+
+static void icp_tc_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, SHOTPLUG_CTL_TC,
+ icp_tc_hotplug_mask(encoder->hpd_pin),
+ icp_tc_hotplug_enables(encoder));
+}
+
+static void icp_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ icp_ddi_hpd_enable_detection(encoder);
+ icp_tc_hpd_enable_detection(encoder);
+}
+
+static void icp_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+
+ if (INTEL_PCH_TYPE(dev_priv) <= PCH_TGP)
+ intel_uncore_write(&dev_priv->uncore, SHPD_FILTER_CNT, SHPD_FILTER_CNT_500_ADJ);
+
+ ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
+
+ icp_ddi_hpd_detection_setup(dev_priv);
+ icp_tc_hpd_detection_setup(dev_priv);
+}
+
+static u32 gen11_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ case HPD_PORT_TC5:
+ case HPD_PORT_TC6:
+ return GEN11_HOTPLUG_CTL_ENABLE(hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 gen11_hotplug_enables(struct intel_encoder *encoder)
+{
+ return gen11_hotplug_mask(encoder->hpd_pin);
+}
+
+static void dg1_hpd_invert(struct drm_i915_private *i915)
+{
+ u32 val = (INVERT_DDIA_HPD |
+ INVERT_DDIB_HPD |
+ INVERT_DDIC_HPD |
+ INVERT_DDID_HPD);
+ intel_uncore_rmw(&i915->uncore, SOUTH_CHICKEN1, 0, val);
+}
+
+static void dg1_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ dg1_hpd_invert(i915);
+ icp_hpd_enable_detection(encoder);
+}
+
+static void dg1_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ dg1_hpd_invert(dev_priv);
+ icp_hpd_irq_setup(dev_priv);
+}
+
+static void gen11_tc_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ intel_uncore_rmw(&dev_priv->uncore, GEN11_TC_HOTPLUG_CTL,
+ intel_hpd_hotplug_mask(dev_priv, gen11_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, gen11_hotplug_enables));
+}
+
+static void gen11_tc_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, GEN11_TC_HOTPLUG_CTL,
+ gen11_hotplug_mask(encoder->hpd_pin),
+ gen11_hotplug_enables(encoder));
+}
+
+static void gen11_tbt_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ intel_uncore_rmw(&dev_priv->uncore, GEN11_TBT_HOTPLUG_CTL,
+ intel_hpd_hotplug_mask(dev_priv, gen11_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, gen11_hotplug_enables));
+}
+
+static void gen11_tbt_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, GEN11_TBT_HOTPLUG_CTL,
+ gen11_hotplug_mask(encoder->hpd_pin),
+ gen11_hotplug_enables(encoder));
+}
+
+static void gen11_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ gen11_tc_hpd_enable_detection(encoder);
+ gen11_tbt_hpd_enable_detection(encoder);
+
+ if (INTEL_PCH_TYPE(i915) >= PCH_ICP)
+ icp_hpd_enable_detection(encoder);
+}
+
+static void gen11_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+
+ intel_uncore_rmw(&dev_priv->uncore, GEN11_DE_HPD_IMR, hotplug_irqs,
+ ~enabled_irqs & hotplug_irqs);
+ intel_uncore_posting_read(&dev_priv->uncore, GEN11_DE_HPD_IMR);
+
+ gen11_tc_hpd_detection_setup(dev_priv);
+ gen11_tbt_hpd_detection_setup(dev_priv);
+
+ if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
+ icp_hpd_irq_setup(dev_priv);
+}
+
+static u32 mtp_ddi_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ case HPD_PORT_B:
+ return SHOTPLUG_CTL_DDI_HPD_ENABLE(hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 mtp_ddi_hotplug_enables(struct intel_encoder *encoder)
+{
+ return mtp_ddi_hotplug_mask(encoder->hpd_pin);
+}
+
+static u32 mtp_tc_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_TC1:
+ case HPD_PORT_TC2:
+ case HPD_PORT_TC3:
+ case HPD_PORT_TC4:
+ return ICP_TC_HPD_ENABLE(hpd_pin);
+ default:
+ return 0;
+ }
+}
+
+static u32 mtp_tc_hotplug_enables(struct intel_encoder *encoder)
+{
+ return mtp_tc_hotplug_mask(encoder->hpd_pin);
+}
+
+static void mtp_ddi_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
+ intel_hpd_hotplug_mask(i915, mtp_ddi_hotplug_mask),
+ intel_hpd_hotplug_enables(i915, mtp_ddi_hotplug_enables));
+}
+
+static void mtp_ddi_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
+ mtp_ddi_hotplug_mask(encoder->hpd_pin),
+ mtp_ddi_hotplug_enables(encoder));
+}
+
+static void mtp_tc_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ intel_de_rmw(i915, SHOTPLUG_CTL_TC,
+ intel_hpd_hotplug_mask(i915, mtp_tc_hotplug_mask),
+ intel_hpd_hotplug_enables(i915, mtp_tc_hotplug_enables));
+}
+
+static void mtp_tc_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
+ mtp_tc_hotplug_mask(encoder->hpd_pin),
+ mtp_tc_hotplug_enables(encoder));
+}
+
+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_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ mtp_hpd_invert(i915);
+ mtp_ddi_hpd_enable_detection(encoder);
+ mtp_tc_hpd_enable_detection(encoder);
+}
+
+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 bool is_xelpdp_pica_hpd_pin(enum hpd_pin hpd_pin)
+{
+ return hpd_pin >= HPD_PORT_TC1 && hpd_pin <= HPD_PORT_TC4;
+}
+
+static void _xelpdp_pica_hpd_detection_setup(struct drm_i915_private *i915,
+ enum hpd_pin hpd_pin, bool enable)
+{
+ u32 mask = XELPDP_TBT_HOTPLUG_ENABLE |
+ XELPDP_DP_ALT_HOTPLUG_ENABLE;
+
+ if (!is_xelpdp_pica_hpd_pin(hpd_pin))
+ return;
+
+ intel_de_rmw(i915, XELPDP_PORT_HOTPLUG_CTL(hpd_pin),
+ mask, enable ? mask : 0);
+}
+
+static void xelpdp_pica_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ _xelpdp_pica_hpd_detection_setup(i915, encoder->hpd_pin, true);
+}
+
+static void xelpdp_pica_hpd_detection_setup(struct drm_i915_private *i915)
+{
+ struct intel_encoder *encoder;
+ u32 available_pins = 0;
+ enum hpd_pin pin;
+
+ 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_each_hpd_pin(pin)
+ _xelpdp_pica_hpd_detection_setup(i915, pin, available_pins & BIT(pin));
+}
+
+static void xelpdp_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ xelpdp_pica_hpd_enable_detection(encoder);
+ mtp_hpd_enable_detection(encoder);
+}
+
+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_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ return PORTA_HOTPLUG_ENABLE;
+ case HPD_PORT_B:
+ return PORTB_HOTPLUG_ENABLE;
+ case HPD_PORT_C:
+ return PORTC_HOTPLUG_ENABLE;
+ case HPD_PORT_D:
+ return PORTD_HOTPLUG_ENABLE;
+ default:
+ return 0;
+ }
+}
+
+static u32 spt_hotplug_enables(struct intel_encoder *encoder)
+{
+ return spt_hotplug_mask(encoder->hpd_pin);
+}
+
+static u32 spt_hotplug2_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_E:
+ return PORTE_HOTPLUG_ENABLE;
+ default:
+ return 0;
+ }
+}
+
+static u32 spt_hotplug2_enables(struct intel_encoder *encoder)
+{
+ return spt_hotplug2_mask(encoder->hpd_pin);
+}
+
+static void spt_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ /* Display WA #1179 WaHardHangonHotPlug: cnp */
+ if (HAS_PCH_CNP(dev_priv)) {
+ intel_uncore_rmw(&dev_priv->uncore, SOUTH_CHICKEN1, CHASSIS_CLK_REQ_DURATION_MASK,
+ CHASSIS_CLK_REQ_DURATION(0xf));
+ }
+
+ /* Enable digital hotplug on the PCH */
+ intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
+ intel_hpd_hotplug_mask(dev_priv, spt_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, spt_hotplug_enables));
+
+ intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG2,
+ intel_hpd_hotplug_mask(dev_priv, spt_hotplug2_mask),
+ intel_hpd_hotplug_enables(dev_priv, spt_hotplug2_enables));
+}
+
+static void spt_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ /* Display WA #1179 WaHardHangonHotPlug: cnp */
+ if (HAS_PCH_CNP(i915)) {
+ intel_uncore_rmw(&i915->uncore, SOUTH_CHICKEN1,
+ CHASSIS_CLK_REQ_DURATION_MASK,
+ CHASSIS_CLK_REQ_DURATION(0xf));
+ }
+
+ intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
+ spt_hotplug_mask(encoder->hpd_pin),
+ spt_hotplug_enables(encoder));
+
+ intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG2,
+ spt_hotplug2_mask(encoder->hpd_pin),
+ spt_hotplug2_enables(encoder));
+}
+
+static void spt_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP)
+ intel_uncore_write(&dev_priv->uncore, SHPD_FILTER_CNT, SHPD_FILTER_CNT_500_ADJ);
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
+
+ ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
+
+ spt_hpd_detection_setup(dev_priv);
+}
+
+static u32 ilk_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ return DIGITAL_PORTA_HOTPLUG_ENABLE |
+ DIGITAL_PORTA_PULSE_DURATION_MASK;
+ default:
+ return 0;
+ }
+}
+
+static u32 ilk_hotplug_enables(struct intel_encoder *encoder)
+{
+ switch (encoder->hpd_pin) {
+ case HPD_PORT_A:
+ return DIGITAL_PORTA_HOTPLUG_ENABLE |
+ DIGITAL_PORTA_PULSE_DURATION_2ms;
+ default:
+ return 0;
+ }
+}
+
+static void ilk_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ /*
+ * Enable digital hotplug on the CPU, and configure the DP short pulse
+ * duration to 2ms (which is the minimum in the Display Port spec)
+ * The pulse duration bits are reserved on HSW+.
+ */
+ intel_uncore_rmw(&dev_priv->uncore, DIGITAL_PORT_HOTPLUG_CNTRL,
+ intel_hpd_hotplug_mask(dev_priv, ilk_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, ilk_hotplug_enables));
+}
+
+static void ilk_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, DIGITAL_PORT_HOTPLUG_CNTRL,
+ ilk_hotplug_mask(encoder->hpd_pin),
+ ilk_hotplug_enables(encoder));
+
+ ibx_hpd_enable_detection(encoder);
+}
+
+static void ilk_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+
+ if (DISPLAY_VER(dev_priv) >= 8)
+ bdw_update_port_irq(dev_priv, hotplug_irqs, enabled_irqs);
+ else
+ ilk_update_display_irq(dev_priv, hotplug_irqs, enabled_irqs);
+
+ ilk_hpd_detection_setup(dev_priv);
+
+ ibx_hpd_irq_setup(dev_priv);
+}
+
+static u32 bxt_hotplug_mask(enum hpd_pin hpd_pin)
+{
+ switch (hpd_pin) {
+ case HPD_PORT_A:
+ return PORTA_HOTPLUG_ENABLE | BXT_DDIA_HPD_INVERT;
+ case HPD_PORT_B:
+ return PORTB_HOTPLUG_ENABLE | BXT_DDIB_HPD_INVERT;
+ case HPD_PORT_C:
+ return PORTC_HOTPLUG_ENABLE | BXT_DDIC_HPD_INVERT;
+ default:
+ return 0;
+ }
+}
+
+static u32 bxt_hotplug_enables(struct intel_encoder *encoder)
+{
+ u32 hotplug;
+
+ switch (encoder->hpd_pin) {
+ case HPD_PORT_A:
+ hotplug = PORTA_HOTPLUG_ENABLE;
+ if (intel_bios_encoder_hpd_invert(encoder->devdata))
+ hotplug |= BXT_DDIA_HPD_INVERT;
+ return hotplug;
+ case HPD_PORT_B:
+ hotplug = PORTB_HOTPLUG_ENABLE;
+ if (intel_bios_encoder_hpd_invert(encoder->devdata))
+ hotplug |= BXT_DDIB_HPD_INVERT;
+ return hotplug;
+ case HPD_PORT_C:
+ hotplug = PORTC_HOTPLUG_ENABLE;
+ if (intel_bios_encoder_hpd_invert(encoder->devdata))
+ hotplug |= BXT_DDIC_HPD_INVERT;
+ return hotplug;
+ default:
+ return 0;
+ }
+}
+
+static void bxt_hpd_detection_setup(struct drm_i915_private *dev_priv)
+{
+ intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
+ intel_hpd_hotplug_mask(dev_priv, bxt_hotplug_mask),
+ intel_hpd_hotplug_enables(dev_priv, bxt_hotplug_enables));
+}
+
+static void bxt_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
+ bxt_hotplug_mask(encoder->hpd_pin),
+ bxt_hotplug_enables(encoder));
+}
+
+static void bxt_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_irqs, enabled_irqs;
+
+ enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+ hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
+
+ bdw_update_port_irq(dev_priv, hotplug_irqs, enabled_irqs);
+
+ bxt_hpd_detection_setup(dev_priv);
+}
+
+static void i915_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ u32 hotplug_en = hpd_mask_i915[encoder->hpd_pin];
+
+ /* HPD sense and interrupt enable are one and the same */
+ i915_hotplug_interrupt_update(i915, hotplug_en, hotplug_en);
+}
+
+static void i915_hpd_irq_setup(struct drm_i915_private *dev_priv)
+{
+ u32 hotplug_en;
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ /*
+ * Note HDMI and DP share hotplug bits. Enable bits are the same for all
+ * generations.
+ */
+ hotplug_en = intel_hpd_enabled_irqs(dev_priv, hpd_mask_i915);
+ /*
+ * Programming the CRT detection parameters tends to generate a spurious
+ * hotplug event about three seconds later. So just do it once.
+ */
+ if (IS_G4X(dev_priv))
+ hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+ hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
+
+ /* Ignore TV since it's buggy */
+ i915_hotplug_interrupt_update_locked(dev_priv,
+ HOTPLUG_INT_EN_MASK |
+ CRT_HOTPLUG_VOLTAGE_COMPARE_MASK |
+ CRT_HOTPLUG_ACTIVATION_PERIOD_64,
+ hotplug_en);
+}
+
+struct intel_hotplug_funcs {
+ /* Enable HPD sense and interrupts for all present encoders */
+ void (*hpd_irq_setup)(struct drm_i915_private *i915);
+ /* Enable HPD sense for a single encoder */
+ void (*hpd_enable_detection)(struct intel_encoder *encoder);
+};
+
+#define HPD_FUNCS(platform) \
+static const struct intel_hotplug_funcs platform##_hpd_funcs = { \
+ .hpd_irq_setup = platform##_hpd_irq_setup, \
+ .hpd_enable_detection = platform##_hpd_enable_detection, \
+}
+
+HPD_FUNCS(i915);
+HPD_FUNCS(xelpdp);
+HPD_FUNCS(dg1);
+HPD_FUNCS(gen11);
+HPD_FUNCS(bxt);
+HPD_FUNCS(icp);
+HPD_FUNCS(spt);
+HPD_FUNCS(ilk);
+#undef HPD_FUNCS
+
+void intel_hpd_enable_detection(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ if (i915->display.funcs.hotplug)
+ i915->display.funcs.hotplug->hpd_enable_detection(encoder);
+}
+
+void intel_hpd_irq_setup(struct drm_i915_private *i915)
+{
+ if (i915->display_irqs_enabled && i915->display.funcs.hotplug)
+ i915->display.funcs.hotplug->hpd_irq_setup(i915);
+}
+
+void intel_hotplug_irq_init(struct drm_i915_private *i915)
+{
+ intel_hpd_init_pins(i915);
+
+ intel_hpd_init_early(i915);
+
+ if (HAS_GMCH(i915)) {
+ if (I915_HAS_HOTPLUG(i915))
+ i915->display.funcs.hotplug = &i915_hpd_funcs;
+ } else {
+ if (HAS_PCH_DG2(i915))
+ i915->display.funcs.hotplug = &icp_hpd_funcs;
+ else if (HAS_PCH_DG1(i915))
+ i915->display.funcs.hotplug = &dg1_hpd_funcs;
+ else if (DISPLAY_VER(i915) >= 14)
+ i915->display.funcs.hotplug = &xelpdp_hpd_funcs;
+ else if (DISPLAY_VER(i915) >= 11)
+ i915->display.funcs.hotplug = &gen11_hpd_funcs;
+ else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+ i915->display.funcs.hotplug = &bxt_hpd_funcs;
+ else if (INTEL_PCH_TYPE(i915) >= PCH_ICP)
+ i915->display.funcs.hotplug = &icp_hpd_funcs;
+ else if (INTEL_PCH_TYPE(i915) >= PCH_SPT)
+ i915->display.funcs.hotplug = &spt_hpd_funcs;
+ else
+ i915->display.funcs.hotplug = &ilk_hpd_funcs;
+ }
+}
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug_irq.h b/drivers/gpu/drm/i915/display/intel_hotplug_irq.h
new file mode 100644
index 000000000000..e4db752df096
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_hotplug_irq.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_HOTPLUG_IRQ_H__
+#define __INTEL_HOTPLUG_IRQ_H__
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+struct intel_encoder;
+
+u32 i9xx_hpd_irq_ack(struct drm_i915_private *i915);
+
+void i9xx_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_status);
+void ibx_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void ilk_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void gen11_hpd_irq_handler(struct drm_i915_private *i915, u32 iir);
+void bxt_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void xelpdp_pica_irq_handler(struct drm_i915_private *i915, u32 iir);
+void icp_irq_handler(struct drm_i915_private *i915, u32 pch_iir);
+void spt_irq_handler(struct drm_i915_private *i915, u32 pch_iir);
+
+void i915_hotplug_interrupt_update_locked(struct drm_i915_private *i915,
+ u32 mask, u32 bits);
+void i915_hotplug_interrupt_update(struct drm_i915_private *i915,
+ u32 mask, u32 bits);
+
+void intel_hpd_enable_detection(struct intel_encoder *encoder);
+void intel_hpd_irq_setup(struct drm_i915_private *i915);
+
+void intel_hotplug_irq_init(struct drm_i915_private *i915);
+
+#endif /* __INTEL_HOTPLUG_IRQ_H__ */
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 64cc52538206..61f53b283210 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -42,6 +42,7 @@
#include "display/intel_fifo_underrun.h"
#include "display/intel_gmbus.h"
#include "display/intel_hotplug.h"
+#include "display/intel_hotplug_irq.h"
#include "display/intel_lpe_audio.h"
#include "display/intel_psr.h"
#include "display/intel_psr_regs.h"
@@ -84,172 +85,6 @@ static inline void pmu_irq_stats(struct drm_i915_private *i915,
WRITE_ONCE(i915->pmu.irq_count, i915->pmu.irq_count + 1);
}
-typedef bool (*long_pulse_detect_func)(enum hpd_pin pin, u32 val);
-typedef u32 (*hotplug_enables_func)(struct intel_encoder *encoder);
-typedef u32 (*hotplug_mask_func)(enum hpd_pin pin);
-
-static const u32 hpd_ilk[HPD_NUM_PINS] = {
- [HPD_PORT_A] = DE_DP_A_HOTPLUG,
-};
-
-static const u32 hpd_ivb[HPD_NUM_PINS] = {
- [HPD_PORT_A] = DE_DP_A_HOTPLUG_IVB,
-};
-
-static const u32 hpd_bdw[HPD_NUM_PINS] = {
- [HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
-};
-
-static const u32 hpd_ibx[HPD_NUM_PINS] = {
- [HPD_CRT] = SDE_CRT_HOTPLUG,
- [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG,
- [HPD_PORT_B] = SDE_PORTB_HOTPLUG,
- [HPD_PORT_C] = SDE_PORTC_HOTPLUG,
- [HPD_PORT_D] = SDE_PORTD_HOTPLUG,
-};
-
-static const u32 hpd_cpt[HPD_NUM_PINS] = {
- [HPD_CRT] = SDE_CRT_HOTPLUG_CPT,
- [HPD_SDVO_B] = SDE_SDVOB_HOTPLUG_CPT,
- [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT,
- [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT,
- [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT,
-};
-
-static const u32 hpd_spt[HPD_NUM_PINS] = {
- [HPD_PORT_A] = SDE_PORTA_HOTPLUG_SPT,
- [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT,
- [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT,
- [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT,
- [HPD_PORT_E] = SDE_PORTE_HOTPLUG_SPT,
-};
-
-static const u32 hpd_mask_i915[HPD_NUM_PINS] = {
- [HPD_CRT] = CRT_HOTPLUG_INT_EN,
- [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_EN,
- [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_EN,
- [HPD_PORT_B] = PORTB_HOTPLUG_INT_EN,
- [HPD_PORT_C] = PORTC_HOTPLUG_INT_EN,
- [HPD_PORT_D] = PORTD_HOTPLUG_INT_EN,
-};
-
-static const u32 hpd_status_g4x[HPD_NUM_PINS] = {
- [HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
- [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_G4X,
- [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_G4X,
- [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS,
- [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS,
- [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS,
-};
-
-static const u32 hpd_status_i915[HPD_NUM_PINS] = {
- [HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
- [HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I915,
- [HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_I915,
- [HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS,
- [HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS,
- [HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS,
-};
-
-static const u32 hpd_bxt[HPD_NUM_PINS] = {
- [HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
- [HPD_PORT_B] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_B),
- [HPD_PORT_C] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_C),
-};
-
-static const u32 hpd_gen11[HPD_NUM_PINS] = {
- [HPD_PORT_TC1] = GEN11_TC_HOTPLUG(HPD_PORT_TC1) | GEN11_TBT_HOTPLUG(HPD_PORT_TC1),
- [HPD_PORT_TC2] = GEN11_TC_HOTPLUG(HPD_PORT_TC2) | GEN11_TBT_HOTPLUG(HPD_PORT_TC2),
- [HPD_PORT_TC3] = GEN11_TC_HOTPLUG(HPD_PORT_TC3) | GEN11_TBT_HOTPLUG(HPD_PORT_TC3),
- [HPD_PORT_TC4] = GEN11_TC_HOTPLUG(HPD_PORT_TC4) | GEN11_TBT_HOTPLUG(HPD_PORT_TC4),
- [HPD_PORT_TC5] = GEN11_TC_HOTPLUG(HPD_PORT_TC5) | GEN11_TBT_HOTPLUG(HPD_PORT_TC5),
- [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_C] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_C),
- [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),
- [HPD_PORT_TC5] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC5),
- [HPD_PORT_TC6] = SDE_TC_HOTPLUG_ICP(HPD_PORT_TC6),
-};
-
-static const u32 hpd_sde_dg1[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_C] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_C),
- [HPD_PORT_D] = SDE_DDI_HOTPLUG_ICP(HPD_PORT_D),
- [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;
-
- if (HAS_GMCH(dev_priv)) {
- if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) ||
- IS_CHERRYVIEW(dev_priv))
- hpd->hpd = hpd_status_g4x;
- else
- hpd->hpd = hpd_status_i915;
- return;
- }
-
- 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;
- else if (DISPLAY_VER(dev_priv) == 9)
- hpd->hpd = NULL; /* no north HPD on SKL */
- else if (DISPLAY_VER(dev_priv) >= 8)
- hpd->hpd = hpd_bdw;
- else if (DISPLAY_VER(dev_priv) >= 7)
- hpd->hpd = hpd_ivb;
- else
- hpd->hpd = hpd_ilk;
-
- if ((INTEL_PCH_TYPE(dev_priv) < PCH_DG1) &&
- (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv)))
- return;
-
- 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))
- hpd->pch_hpd = hpd_spt;
- else if (HAS_PCH_LPT(dev_priv) || HAS_PCH_CPT(dev_priv))
- hpd->pch_hpd = hpd_cpt;
- else if (HAS_PCH_IBX(dev_priv))
- hpd->pch_hpd = hpd_ibx;
- else
- MISSING_CASE(INTEL_PCH_TYPE(dev_priv));
-}
-
static void
intel_handle_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
{
@@ -344,47 +179,14 @@ static void gen2_irq_init(struct intel_uncore *uncore,
intel_uncore_posting_read16(uncore, GEN2_IMR);
}
-/* For display hotplug interrupt */
-static inline void
-i915_hotplug_interrupt_update_locked(struct drm_i915_private *dev_priv,
- u32 mask,
- u32 bits)
-{
- lockdep_assert_held(&dev_priv->irq_lock);
- drm_WARN_ON(&dev_priv->drm, bits & ~mask);
-
- intel_uncore_rmw(&dev_priv->uncore, PORT_HOTPLUG_EN, mask, bits);
-}
-
-/**
- * i915_hotplug_interrupt_update - update hotplug interrupt enable
- * @dev_priv: driver private
- * @mask: bits to update
- * @bits: bits to enable
- * NOTE: the HPD enable bits are modified both inside and outside
- * of an interrupt context. To avoid that read-modify-write cycles
- * interfer, these bits are protected by a spinlock. Since this
- * function is usually not called from a context where the lock is
- * held already, this function acquires the lock itself. A non-locking
- * version is also available.
- */
-void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
- u32 mask,
- u32 bits)
-{
- spin_lock_irq(&dev_priv->irq_lock);
- i915_hotplug_interrupt_update_locked(dev_priv, mask, bits);
- spin_unlock_irq(&dev_priv->irq_lock);
-}
-
/**
* ilk_update_display_irq - update DEIMR
* @dev_priv: driver private
* @interrupt_mask: mask of interrupt bits to update
* @enabled_irq_mask: mask of interrupt bits to enable
*/
-static void ilk_update_display_irq(struct drm_i915_private *dev_priv,
- u32 interrupt_mask, u32 enabled_irq_mask)
+void ilk_update_display_irq(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask, u32 enabled_irq_mask)
{
u32 new_val;
@@ -419,9 +221,8 @@ void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits)
* @interrupt_mask: mask of interrupt bits to update
* @enabled_irq_mask: mask of interrupt bits to enable
*/
-static void bdw_update_port_irq(struct drm_i915_private *dev_priv,
- u32 interrupt_mask,
- u32 enabled_irq_mask)
+void bdw_update_port_irq(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask, u32 enabled_irq_mask)
{
u32 new_val;
u32 old_val;
@@ -494,9 +295,9 @@ void bdw_disable_pipe_irq(struct drm_i915_private *i915,
* @interrupt_mask: mask of interrupt bits to update
* @enabled_irq_mask: mask of interrupt bits to enable
*/
-static void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
- u32 interrupt_mask,
- u32 enabled_irq_mask)
+void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask,
+ u32 enabled_irq_mask)
{
u32 sdeimr = intel_uncore_read(&dev_priv->uncore, SDEIMR);
sdeimr &= ~interrupt_mask;
@@ -724,209 +525,6 @@ static void ivb_parity_work(struct work_struct *work)
mutex_unlock(&dev_priv->drm.struct_mutex);
}
-static bool gen11_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_TC1:
- case HPD_PORT_TC2:
- case HPD_PORT_TC3:
- case HPD_PORT_TC4:
- case HPD_PORT_TC5:
- case HPD_PORT_TC6:
- return val & GEN11_HOTPLUG_CTL_LONG_DETECT(pin);
- default:
- return false;
- }
-}
-
-static bool bxt_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_A:
- return val & PORTA_HOTPLUG_LONG_DETECT;
- case HPD_PORT_B:
- return val & PORTB_HOTPLUG_LONG_DETECT;
- case HPD_PORT_C:
- return val & PORTC_HOTPLUG_LONG_DETECT;
- default:
- return false;
- }
-}
-
-static bool icp_ddi_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_A:
- case HPD_PORT_B:
- case HPD_PORT_C:
- case HPD_PORT_D:
- return val & SHOTPLUG_CTL_DDI_HPD_LONG_DETECT(pin);
- default:
- return false;
- }
-}
-
-static bool icp_tc_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_TC1:
- case HPD_PORT_TC2:
- case HPD_PORT_TC3:
- case HPD_PORT_TC4:
- case HPD_PORT_TC5:
- case HPD_PORT_TC6:
- return val & ICP_TC_HPD_LONG_DETECT(pin);
- default:
- return false;
- }
-}
-
-static bool spt_port_hotplug2_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_E:
- return val & PORTE_HOTPLUG_LONG_DETECT;
- default:
- return false;
- }
-}
-
-static bool spt_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_A:
- return val & PORTA_HOTPLUG_LONG_DETECT;
- case HPD_PORT_B:
- return val & PORTB_HOTPLUG_LONG_DETECT;
- case HPD_PORT_C:
- return val & PORTC_HOTPLUG_LONG_DETECT;
- case HPD_PORT_D:
- return val & PORTD_HOTPLUG_LONG_DETECT;
- default:
- return false;
- }
-}
-
-static bool ilk_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_A:
- return val & DIGITAL_PORTA_HOTPLUG_LONG_DETECT;
- default:
- return false;
- }
-}
-
-static bool pch_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_B:
- return val & PORTB_HOTPLUG_LONG_DETECT;
- case HPD_PORT_C:
- return val & PORTC_HOTPLUG_LONG_DETECT;
- case HPD_PORT_D:
- return val & PORTD_HOTPLUG_LONG_DETECT;
- default:
- return false;
- }
-}
-
-static bool i9xx_port_hotplug_long_detect(enum hpd_pin pin, u32 val)
-{
- switch (pin) {
- case HPD_PORT_B:
- return val & PORTB_HOTPLUG_INT_LONG_PULSE;
- case HPD_PORT_C:
- return val & PORTC_HOTPLUG_INT_LONG_PULSE;
- case HPD_PORT_D:
- return val & PORTD_HOTPLUG_INT_LONG_PULSE;
- default:
- return false;
- }
-}
-
-/*
- * Get a bit mask of pins that have triggered, and which ones may be long.
- * This can be called multiple times with the same masks to accumulate
- * hotplug detection results from several registers.
- *
- * Note that the caller is expected to zero out the masks initially.
- */
-static void intel_get_hpd_pins(struct drm_i915_private *dev_priv,
- u32 *pin_mask, u32 *long_mask,
- u32 hotplug_trigger, u32 dig_hotplug_reg,
- const u32 hpd[HPD_NUM_PINS],
- bool long_pulse_detect(enum hpd_pin pin, u32 val))
-{
- enum hpd_pin pin;
-
- BUILD_BUG_ON(BITS_PER_TYPE(*pin_mask) < HPD_NUM_PINS);
-
- for_each_hpd_pin(pin) {
- if ((hpd[pin] & hotplug_trigger) == 0)
- continue;
-
- *pin_mask |= BIT(pin);
-
- if (long_pulse_detect(pin, dig_hotplug_reg))
- *long_mask |= BIT(pin);
- }
-
- drm_dbg(&dev_priv->drm,
- "hotplug event received, stat 0x%08x, dig 0x%08x, pins 0x%08x, long 0x%08x\n",
- hotplug_trigger, dig_hotplug_reg, *pin_mask, *long_mask);
-
-}
-
-static u32 intel_hpd_enabled_irqs(struct drm_i915_private *dev_priv,
- const u32 hpd[HPD_NUM_PINS])
-{
- struct intel_encoder *encoder;
- u32 enabled_irqs = 0;
-
- for_each_intel_encoder(&dev_priv->drm, encoder)
- if (dev_priv->display.hotplug.stats[encoder->hpd_pin].state == HPD_ENABLED)
- enabled_irqs |= hpd[encoder->hpd_pin];
-
- return enabled_irqs;
-}
-
-static u32 intel_hpd_hotplug_irqs(struct drm_i915_private *dev_priv,
- const u32 hpd[HPD_NUM_PINS])
-{
- struct intel_encoder *encoder;
- u32 hotplug_irqs = 0;
-
- for_each_intel_encoder(&dev_priv->drm, encoder)
- hotplug_irqs |= hpd[encoder->hpd_pin];
-
- return hotplug_irqs;
-}
-
-static u32 intel_hpd_hotplug_mask(struct drm_i915_private *i915,
- hotplug_mask_func hotplug_mask)
-{
- enum hpd_pin pin;
- u32 hotplug = 0;
-
- for_each_hpd_pin(pin)
- hotplug |= hotplug_mask(pin);
-
- return hotplug;
-}
-
-static u32 intel_hpd_hotplug_enables(struct drm_i915_private *i915,
- hotplug_enables_func hotplug_enables)
-{
- struct intel_encoder *encoder;
- u32 hotplug = 0;
-
- for_each_intel_encoder(&i915->drm, encoder)
- hotplug |= hotplug_enables(encoder);
-
- return hotplug;
-}
-
#if defined(CONFIG_DEBUG_FS)
static void display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
enum pipe pipe,
@@ -1199,71 +797,6 @@ static void valleyview_pipestat_irq_handler(struct drm_i915_private *dev_priv,
intel_gmbus_irq_handler(dev_priv);
}
-static u32 i9xx_hpd_irq_ack(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_status = 0, hotplug_status_mask;
- int i;
-
- if (IS_G4X(dev_priv) ||
- IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- hotplug_status_mask = HOTPLUG_INT_STATUS_G4X |
- DP_AUX_CHANNEL_MASK_INT_STATUS_G4X;
- else
- hotplug_status_mask = HOTPLUG_INT_STATUS_I915;
-
- /*
- * We absolutely have to clear all the pending interrupt
- * bits in PORT_HOTPLUG_STAT. Otherwise the ISR port
- * interrupt bit won't have an edge, and the i965/g4x
- * edge triggered IIR will not notice that an interrupt
- * is still pending. We can't use PORT_HOTPLUG_EN to
- * guarantee the edge as the act of toggling the enable
- * bits can itself generate a new hotplug interrupt :(
- */
- for (i = 0; i < 10; i++) {
- u32 tmp = intel_uncore_read(&dev_priv->uncore, PORT_HOTPLUG_STAT) & hotplug_status_mask;
-
- if (tmp == 0)
- return hotplug_status;
-
- hotplug_status |= tmp;
- intel_uncore_write(&dev_priv->uncore, PORT_HOTPLUG_STAT, hotplug_status);
- }
-
- drm_WARN_ONCE(&dev_priv->drm, 1,
- "PORT_HOTPLUG_STAT did not clear (0x%08x)\n",
- intel_uncore_read(&dev_priv->uncore, PORT_HOTPLUG_STAT));
-
- return hotplug_status;
-}
-
-static void i9xx_hpd_irq_handler(struct drm_i915_private *dev_priv,
- u32 hotplug_status)
-{
- u32 pin_mask = 0, long_mask = 0;
- u32 hotplug_trigger;
-
- if (IS_G4X(dev_priv) ||
- IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_G4X;
- else
- hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_I915;
-
- if (hotplug_trigger) {
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug_trigger, hotplug_trigger,
- dev_priv->display.hotplug.hpd,
- i9xx_port_hotplug_long_detect);
-
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
- }
-
- if ((IS_G4X(dev_priv) ||
- IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
- hotplug_status & DP_AUX_CHANNEL_MASK_INT_STATUS_G4X)
- intel_dp_aux_irq_handler(dev_priv);
-}
-
static irqreturn_t valleyview_irq_handler(int irq, void *arg)
{
struct drm_i915_private *dev_priv = arg;
@@ -1428,38 +961,6 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
return ret;
}
-static void ibx_hpd_irq_handler(struct drm_i915_private *dev_priv,
- u32 hotplug_trigger)
-{
- u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
-
- /*
- * Somehow the PCH doesn't seem to really ack the interrupt to the CPU
- * unless we touch the hotplug register, even if hotplug_trigger is
- * zero. Not acking leads to "The master control interrupt lied (SDE)!"
- * errors.
- */
- dig_hotplug_reg = intel_uncore_read(&dev_priv->uncore, PCH_PORT_HOTPLUG);
- if (!hotplug_trigger) {
- u32 mask = PORTA_HOTPLUG_STATUS_MASK |
- PORTD_HOTPLUG_STATUS_MASK |
- PORTC_HOTPLUG_STATUS_MASK |
- PORTB_HOTPLUG_STATUS_MASK;
- dig_hotplug_reg &= ~mask;
- }
-
- intel_uncore_write(&dev_priv->uncore, PCH_PORT_HOTPLUG, dig_hotplug_reg);
- if (!hotplug_trigger)
- return;
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.pch_hpd,
- pch_port_hotplug_long_detect);
-
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
-}
-
static void ibx_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
{
enum pipe pipe;
@@ -1585,133 +1086,6 @@ static void cpt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
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)
- intel_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;
- u32 tc_hotplug_trigger = pch_iir & SDE_TC_HOTPLUG_MASK_ICP;
- u32 pin_mask = 0, long_mask = 0;
-
- if (ddi_hotplug_trigger) {
- u32 dig_hotplug_reg;
-
- /* Locking due to DSI native GPIO sequences */
- spin_lock(&dev_priv->irq_lock);
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_DDI, 0, 0);
- spin_unlock(&dev_priv->irq_lock);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- ddi_hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.pch_hpd,
- icp_ddi_port_hotplug_long_detect);
- }
-
- if (tc_hotplug_trigger) {
- u32 dig_hotplug_reg;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_TC, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- tc_hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.pch_hpd,
- icp_tc_port_hotplug_long_detect);
- }
-
- if (pin_mask)
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
-
- if (pch_iir & SDE_GMBUS_ICP)
- intel_gmbus_irq_handler(dev_priv);
-}
-
-static void spt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
-{
- u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_SPT &
- ~SDE_PORTE_HOTPLUG_SPT;
- u32 hotplug2_trigger = pch_iir & SDE_PORTE_HOTPLUG_SPT;
- u32 pin_mask = 0, long_mask = 0;
-
- if (hotplug_trigger) {
- u32 dig_hotplug_reg;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.pch_hpd,
- spt_port_hotplug_long_detect);
- }
-
- if (hotplug2_trigger) {
- u32 dig_hotplug_reg;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG2, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug2_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.pch_hpd,
- spt_port_hotplug2_long_detect);
- }
-
- if (pin_mask)
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
-
- if (pch_iir & SDE_GMBUS_CPT)
- intel_gmbus_irq_handler(dev_priv);
-}
-
-static void ilk_hpd_irq_handler(struct drm_i915_private *dev_priv,
- u32 hotplug_trigger)
-{
- u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, DIGITAL_PORT_HOTPLUG_CNTRL, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.hpd,
- ilk_port_hotplug_long_detect);
-
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
-}
-
static void ilk_display_irq_handler(struct drm_i915_private *dev_priv,
u32 de_iir)
{
@@ -1876,56 +1250,6 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
return ret;
}
-static void bxt_hpd_irq_handler(struct drm_i915_private *dev_priv,
- u32 hotplug_trigger)
-{
- u32 dig_hotplug_reg, pin_mask = 0, long_mask = 0;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- hotplug_trigger, dig_hotplug_reg,
- dev_priv->display.hotplug.hpd,
- bxt_port_hotplug_long_detect);
-
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
-}
-
-static void gen11_hpd_irq_handler(struct drm_i915_private *dev_priv, u32 iir)
-{
- u32 pin_mask = 0, long_mask = 0;
- u32 trigger_tc = iir & GEN11_DE_TC_HOTPLUG_MASK;
- u32 trigger_tbt = iir & GEN11_DE_TBT_HOTPLUG_MASK;
-
- if (trigger_tc) {
- u32 dig_hotplug_reg;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, GEN11_TC_HOTPLUG_CTL, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- trigger_tc, dig_hotplug_reg,
- dev_priv->display.hotplug.hpd,
- gen11_port_hotplug_long_detect);
- }
-
- if (trigger_tbt) {
- u32 dig_hotplug_reg;
-
- dig_hotplug_reg = intel_uncore_rmw(&dev_priv->uncore, GEN11_TBT_HOTPLUG_CTL, 0, 0);
-
- intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
- trigger_tbt, dig_hotplug_reg,
- dev_priv->display.hotplug.hpd,
- gen11_port_hotplug_long_detect);
- }
-
- if (pin_mask)
- intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
- else
- drm_err(&dev_priv->drm,
- "Unexpected DE HPD interrupt 0x%08x\n", iir);
-}
-
static u32 gen8_de_port_aux_mask(struct drm_i915_private *dev_priv)
{
u32 mask;
@@ -2933,696 +2257,39 @@ static void cherryview_irq_reset(struct drm_i915_private *dev_priv)
spin_unlock_irq(&dev_priv->irq_lock);
}
-static u32 ibx_hotplug_mask(enum hpd_pin hpd_pin)
+/*
+ * SDEIER is also touched by the interrupt handler to work around missed PCH
+ * interrupts. Hence we can't update it after the interrupt handler is enabled -
+ * instead we unconditionally enable all PCH interrupt sources here, but then
+ * only unmask them as needed with SDEIMR.
+ *
+ * Note that we currently do this after installing the interrupt handler,
+ * but before we enable the master interrupt. That should be sufficient
+ * to avoid races with the irq handler, assuming we have MSI. Shared legacy
+ * interrupts could still race.
+ */
+static void ibx_irq_postinstall(struct drm_i915_private *dev_priv)
{
- switch (hpd_pin) {
- case HPD_PORT_A:
- return PORTA_HOTPLUG_ENABLE;
- case HPD_PORT_B:
- return PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_MASK;
- case HPD_PORT_C:
- return PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_MASK;
- case HPD_PORT_D:
- return PORTD_HOTPLUG_ENABLE | PORTD_PULSE_DURATION_MASK;
- default:
- return 0;
- }
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ u32 mask;
+
+ if (HAS_PCH_NOP(dev_priv))
+ return;
+
+ if (HAS_PCH_IBX(dev_priv))
+ mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
+ else if (HAS_PCH_CPT(dev_priv) || HAS_PCH_LPT(dev_priv))
+ mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
+ else
+ mask = SDE_GMBUS_CPT;
+
+ GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
}
-static u32 ibx_hotplug_enables(struct intel_encoder *encoder)
+static void ilk_irq_postinstall(struct drm_i915_private *dev_priv)
{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- switch (encoder->hpd_pin) {
- case HPD_PORT_A:
- /*
- * When CPU and PCH are on the same package, port A
- * HPD must be enabled in both north and south.
- */
- return HAS_PCH_LPT_LP(i915) ?
- PORTA_HOTPLUG_ENABLE : 0;
- case HPD_PORT_B:
- return PORTB_HOTPLUG_ENABLE |
- PORTB_PULSE_DURATION_2ms;
- case HPD_PORT_C:
- return PORTC_HOTPLUG_ENABLE |
- PORTC_PULSE_DURATION_2ms;
- case HPD_PORT_D:
- return PORTD_HOTPLUG_ENABLE |
- PORTD_PULSE_DURATION_2ms;
- default:
- return 0;
- }
-}
-
-static void ibx_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- /*
- * Enable digital hotplug on the PCH, and configure the DP short pulse
- * duration to 2ms (which is the minimum in the Display Port spec).
- * The pulse duration bits are reserved on LPT+.
- */
- intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
- intel_hpd_hotplug_mask(dev_priv, ibx_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, ibx_hotplug_enables));
-}
-
-static void ibx_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
- ibx_hotplug_mask(encoder->hpd_pin),
- ibx_hotplug_enables(encoder));
-}
-
-static void ibx_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
-
- ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
-
- ibx_hpd_detection_setup(dev_priv);
-}
-
-static u32 icp_ddi_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_A:
- case HPD_PORT_B:
- case HPD_PORT_C:
- case HPD_PORT_D:
- return SHOTPLUG_CTL_DDI_HPD_ENABLE(hpd_pin);
- default:
- return 0;
- }
-}
-
-static u32 icp_ddi_hotplug_enables(struct intel_encoder *encoder)
-{
- return icp_ddi_hotplug_mask(encoder->hpd_pin);
-}
-
-static u32 icp_tc_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_TC1:
- case HPD_PORT_TC2:
- case HPD_PORT_TC3:
- case HPD_PORT_TC4:
- case HPD_PORT_TC5:
- case HPD_PORT_TC6:
- return ICP_TC_HPD_ENABLE(hpd_pin);
- default:
- return 0;
- }
-}
-
-static u32 icp_tc_hotplug_enables(struct intel_encoder *encoder)
-{
- return icp_tc_hotplug_mask(encoder->hpd_pin);
-}
-
-static void icp_ddi_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_DDI,
- intel_hpd_hotplug_mask(dev_priv, icp_ddi_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, icp_ddi_hotplug_enables));
-}
-
-static void icp_ddi_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, SHOTPLUG_CTL_DDI,
- icp_ddi_hotplug_mask(encoder->hpd_pin),
- icp_ddi_hotplug_enables(encoder));
-}
-
-static void icp_tc_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- intel_uncore_rmw(&dev_priv->uncore, SHOTPLUG_CTL_TC,
- intel_hpd_hotplug_mask(dev_priv, icp_tc_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, icp_tc_hotplug_enables));
-}
-
-static void icp_tc_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, SHOTPLUG_CTL_TC,
- icp_tc_hotplug_mask(encoder->hpd_pin),
- icp_tc_hotplug_enables(encoder));
-}
-
-static void icp_hpd_enable_detection(struct intel_encoder *encoder)
-{
- icp_ddi_hpd_enable_detection(encoder);
- icp_tc_hpd_enable_detection(encoder);
-}
-
-static void icp_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
-
- if (INTEL_PCH_TYPE(dev_priv) <= PCH_TGP)
- intel_uncore_write(&dev_priv->uncore, SHPD_FILTER_CNT, SHPD_FILTER_CNT_500_ADJ);
-
- ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
-
- icp_ddi_hpd_detection_setup(dev_priv);
- icp_tc_hpd_detection_setup(dev_priv);
-}
-
-static u32 gen11_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_TC1:
- case HPD_PORT_TC2:
- case HPD_PORT_TC3:
- case HPD_PORT_TC4:
- case HPD_PORT_TC5:
- case HPD_PORT_TC6:
- return GEN11_HOTPLUG_CTL_ENABLE(hpd_pin);
- default:
- return 0;
- }
-}
-
-static u32 gen11_hotplug_enables(struct intel_encoder *encoder)
-{
- return gen11_hotplug_mask(encoder->hpd_pin);
-}
-
-static void dg1_hpd_invert(struct drm_i915_private *i915)
-{
- u32 val = (INVERT_DDIA_HPD |
- INVERT_DDIB_HPD |
- INVERT_DDIC_HPD |
- INVERT_DDID_HPD);
- intel_uncore_rmw(&i915->uncore, SOUTH_CHICKEN1, 0, val);
-}
-
-static void dg1_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- dg1_hpd_invert(i915);
- icp_hpd_enable_detection(encoder);
-}
-
-static void dg1_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- dg1_hpd_invert(dev_priv);
- icp_hpd_irq_setup(dev_priv);
-}
-
-static void gen11_tc_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- intel_uncore_rmw(&dev_priv->uncore, GEN11_TC_HOTPLUG_CTL,
- intel_hpd_hotplug_mask(dev_priv, gen11_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, gen11_hotplug_enables));
-}
-
-static void gen11_tc_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, GEN11_TC_HOTPLUG_CTL,
- gen11_hotplug_mask(encoder->hpd_pin),
- gen11_hotplug_enables(encoder));
-}
-
-static void gen11_tbt_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- intel_uncore_rmw(&dev_priv->uncore, GEN11_TBT_HOTPLUG_CTL,
- intel_hpd_hotplug_mask(dev_priv, gen11_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, gen11_hotplug_enables));
-}
-
-static void gen11_tbt_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, GEN11_TBT_HOTPLUG_CTL,
- gen11_hotplug_mask(encoder->hpd_pin),
- gen11_hotplug_enables(encoder));
-}
-
-static void gen11_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- gen11_tc_hpd_enable_detection(encoder);
- gen11_tbt_hpd_enable_detection(encoder);
-
- if (INTEL_PCH_TYPE(i915) >= PCH_ICP)
- icp_hpd_enable_detection(encoder);
-}
-
-static void gen11_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
-
- intel_uncore_rmw(&dev_priv->uncore, GEN11_DE_HPD_IMR, hotplug_irqs,
- ~enabled_irqs & hotplug_irqs);
- intel_uncore_posting_read(&dev_priv->uncore, GEN11_DE_HPD_IMR);
-
- gen11_tc_hpd_detection_setup(dev_priv);
- gen11_tbt_hpd_detection_setup(dev_priv);
-
- if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
- icp_hpd_irq_setup(dev_priv);
-}
-
-static u32 mtp_ddi_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_A:
- case HPD_PORT_B:
- return SHOTPLUG_CTL_DDI_HPD_ENABLE(hpd_pin);
- default:
- return 0;
- }
-}
-
-static u32 mtp_ddi_hotplug_enables(struct intel_encoder *encoder)
-{
- return mtp_ddi_hotplug_mask(encoder->hpd_pin);
-}
-
-static u32 mtp_tc_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_TC1:
- case HPD_PORT_TC2:
- case HPD_PORT_TC3:
- case HPD_PORT_TC4:
- return ICP_TC_HPD_ENABLE(hpd_pin);
- default:
- return 0;
- }
-}
-
-static u32 mtp_tc_hotplug_enables(struct intel_encoder *encoder)
-{
- return mtp_tc_hotplug_mask(encoder->hpd_pin);
-}
-
-static void mtp_ddi_hpd_detection_setup(struct drm_i915_private *i915)
-{
- intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
- intel_hpd_hotplug_mask(i915, mtp_ddi_hotplug_mask),
- intel_hpd_hotplug_enables(i915, mtp_ddi_hotplug_enables));
-}
-
-static void mtp_ddi_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
- mtp_ddi_hotplug_mask(encoder->hpd_pin),
- mtp_ddi_hotplug_enables(encoder));
-}
-
-static void mtp_tc_hpd_detection_setup(struct drm_i915_private *i915)
-{
- intel_de_rmw(i915, SHOTPLUG_CTL_TC,
- intel_hpd_hotplug_mask(i915, mtp_tc_hotplug_mask),
- intel_hpd_hotplug_enables(i915, mtp_tc_hotplug_enables));
-}
-
-static void mtp_tc_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_de_rmw(i915, SHOTPLUG_CTL_DDI,
- mtp_tc_hotplug_mask(encoder->hpd_pin),
- mtp_tc_hotplug_enables(encoder));
-}
-
-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_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- mtp_hpd_invert(i915);
- mtp_ddi_hpd_enable_detection(encoder);
- mtp_tc_hpd_enable_detection(encoder);
-}
-
-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 bool is_xelpdp_pica_hpd_pin(enum hpd_pin hpd_pin)
-{
- return hpd_pin >= HPD_PORT_TC1 && hpd_pin <= HPD_PORT_TC4;
-}
-
-static void _xelpdp_pica_hpd_detection_setup(struct drm_i915_private *i915,
- enum hpd_pin hpd_pin, bool enable)
-{
- u32 mask = XELPDP_TBT_HOTPLUG_ENABLE |
- XELPDP_DP_ALT_HOTPLUG_ENABLE;
-
- if (!is_xelpdp_pica_hpd_pin(hpd_pin))
- return;
-
- intel_de_rmw(i915, XELPDP_PORT_HOTPLUG_CTL(hpd_pin),
- mask, enable ? mask : 0);
-}
-
-static void xelpdp_pica_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- _xelpdp_pica_hpd_detection_setup(i915, encoder->hpd_pin, true);
-}
-
-static void xelpdp_pica_hpd_detection_setup(struct drm_i915_private *i915)
-{
- struct intel_encoder *encoder;
- u32 available_pins = 0;
- enum hpd_pin pin;
-
- 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_each_hpd_pin(pin)
- _xelpdp_pica_hpd_detection_setup(i915, pin, available_pins & BIT(pin));
-}
-
-static void xelpdp_hpd_enable_detection(struct intel_encoder *encoder)
-{
- xelpdp_pica_hpd_enable_detection(encoder);
- mtp_hpd_enable_detection(encoder);
-}
-
-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_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_A:
- return PORTA_HOTPLUG_ENABLE;
- case HPD_PORT_B:
- return PORTB_HOTPLUG_ENABLE;
- case HPD_PORT_C:
- return PORTC_HOTPLUG_ENABLE;
- case HPD_PORT_D:
- return PORTD_HOTPLUG_ENABLE;
- default:
- return 0;
- }
-}
-
-static u32 spt_hotplug_enables(struct intel_encoder *encoder)
-{
- return spt_hotplug_mask(encoder->hpd_pin);
-}
-
-static u32 spt_hotplug2_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_E:
- return PORTE_HOTPLUG_ENABLE;
- default:
- return 0;
- }
-}
-
-static u32 spt_hotplug2_enables(struct intel_encoder *encoder)
-{
- return spt_hotplug2_mask(encoder->hpd_pin);
-}
-
-static void spt_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- /* Display WA #1179 WaHardHangonHotPlug: cnp */
- if (HAS_PCH_CNP(dev_priv)) {
- intel_uncore_rmw(&dev_priv->uncore, SOUTH_CHICKEN1, CHASSIS_CLK_REQ_DURATION_MASK,
- CHASSIS_CLK_REQ_DURATION(0xf));
- }
-
- /* Enable digital hotplug on the PCH */
- intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
- intel_hpd_hotplug_mask(dev_priv, spt_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, spt_hotplug_enables));
-
- intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG2,
- intel_hpd_hotplug_mask(dev_priv, spt_hotplug2_mask),
- intel_hpd_hotplug_enables(dev_priv, spt_hotplug2_enables));
-}
-
-static void spt_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- /* Display WA #1179 WaHardHangonHotPlug: cnp */
- if (HAS_PCH_CNP(i915)) {
- intel_uncore_rmw(&i915->uncore, SOUTH_CHICKEN1,
- CHASSIS_CLK_REQ_DURATION_MASK,
- CHASSIS_CLK_REQ_DURATION(0xf));
- }
-
- intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
- spt_hotplug_mask(encoder->hpd_pin),
- spt_hotplug_enables(encoder));
-
- intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG2,
- spt_hotplug2_mask(encoder->hpd_pin),
- spt_hotplug2_enables(encoder));
-}
-
-static void spt_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP)
- intel_uncore_write(&dev_priv->uncore, SHPD_FILTER_CNT, SHPD_FILTER_CNT_500_ADJ);
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.pch_hpd);
-
- ibx_display_interrupt_update(dev_priv, hotplug_irqs, enabled_irqs);
-
- spt_hpd_detection_setup(dev_priv);
-}
-
-static u32 ilk_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_A:
- return DIGITAL_PORTA_HOTPLUG_ENABLE |
- DIGITAL_PORTA_PULSE_DURATION_MASK;
- default:
- return 0;
- }
-}
-
-static u32 ilk_hotplug_enables(struct intel_encoder *encoder)
-{
- switch (encoder->hpd_pin) {
- case HPD_PORT_A:
- return DIGITAL_PORTA_HOTPLUG_ENABLE |
- DIGITAL_PORTA_PULSE_DURATION_2ms;
- default:
- return 0;
- }
-}
-
-static void ilk_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- /*
- * Enable digital hotplug on the CPU, and configure the DP short pulse
- * duration to 2ms (which is the minimum in the Display Port spec)
- * The pulse duration bits are reserved on HSW+.
- */
- intel_uncore_rmw(&dev_priv->uncore, DIGITAL_PORT_HOTPLUG_CNTRL,
- intel_hpd_hotplug_mask(dev_priv, ilk_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, ilk_hotplug_enables));
-}
-
-static void ilk_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, DIGITAL_PORT_HOTPLUG_CNTRL,
- ilk_hotplug_mask(encoder->hpd_pin),
- ilk_hotplug_enables(encoder));
-
- ibx_hpd_enable_detection(encoder);
-}
-
-static void ilk_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
-
- if (DISPLAY_VER(dev_priv) >= 8)
- bdw_update_port_irq(dev_priv, hotplug_irqs, enabled_irqs);
- else
- ilk_update_display_irq(dev_priv, hotplug_irqs, enabled_irqs);
-
- ilk_hpd_detection_setup(dev_priv);
-
- ibx_hpd_irq_setup(dev_priv);
-}
-
-static u32 bxt_hotplug_mask(enum hpd_pin hpd_pin)
-{
- switch (hpd_pin) {
- case HPD_PORT_A:
- return PORTA_HOTPLUG_ENABLE | BXT_DDIA_HPD_INVERT;
- case HPD_PORT_B:
- return PORTB_HOTPLUG_ENABLE | BXT_DDIB_HPD_INVERT;
- case HPD_PORT_C:
- return PORTC_HOTPLUG_ENABLE | BXT_DDIC_HPD_INVERT;
- default:
- return 0;
- }
-}
-
-static u32 bxt_hotplug_enables(struct intel_encoder *encoder)
-{
- u32 hotplug;
-
- switch (encoder->hpd_pin) {
- case HPD_PORT_A:
- hotplug = PORTA_HOTPLUG_ENABLE;
- if (intel_bios_encoder_hpd_invert(encoder->devdata))
- hotplug |= BXT_DDIA_HPD_INVERT;
- return hotplug;
- case HPD_PORT_B:
- hotplug = PORTB_HOTPLUG_ENABLE;
- if (intel_bios_encoder_hpd_invert(encoder->devdata))
- hotplug |= BXT_DDIB_HPD_INVERT;
- return hotplug;
- case HPD_PORT_C:
- hotplug = PORTC_HOTPLUG_ENABLE;
- if (intel_bios_encoder_hpd_invert(encoder->devdata))
- hotplug |= BXT_DDIC_HPD_INVERT;
- return hotplug;
- default:
- return 0;
- }
-}
-
-static void bxt_hpd_detection_setup(struct drm_i915_private *dev_priv)
-{
- intel_uncore_rmw(&dev_priv->uncore, PCH_PORT_HOTPLUG,
- intel_hpd_hotplug_mask(dev_priv, bxt_hotplug_mask),
- intel_hpd_hotplug_enables(dev_priv, bxt_hotplug_enables));
-}
-
-static void bxt_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- intel_uncore_rmw(&i915->uncore, PCH_PORT_HOTPLUG,
- bxt_hotplug_mask(encoder->hpd_pin),
- bxt_hotplug_enables(encoder));
-}
-
-static void bxt_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_irqs, enabled_irqs;
-
- enabled_irqs = intel_hpd_enabled_irqs(dev_priv, dev_priv->display.hotplug.hpd);
- hotplug_irqs = intel_hpd_hotplug_irqs(dev_priv, dev_priv->display.hotplug.hpd);
-
- bdw_update_port_irq(dev_priv, hotplug_irqs, enabled_irqs);
-
- bxt_hpd_detection_setup(dev_priv);
-}
-
-/*
- * SDEIER is also touched by the interrupt handler to work around missed PCH
- * interrupts. Hence we can't update it after the interrupt handler is enabled -
- * instead we unconditionally enable all PCH interrupt sources here, but then
- * only unmask them as needed with SDEIMR.
- *
- * Note that we currently do this after installing the interrupt handler,
- * but before we enable the master interrupt. That should be sufficient
- * to avoid races with the irq handler, assuming we have MSI. Shared legacy
- * interrupts could still race.
- */
-static void ibx_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- u32 mask;
-
- if (HAS_PCH_NOP(dev_priv))
- return;
-
- if (HAS_PCH_IBX(dev_priv))
- mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
- else if (HAS_PCH_CPT(dev_priv) || HAS_PCH_LPT(dev_priv))
- mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
- else
- mask = SDE_GMBUS_CPT;
-
- GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
-}
-
-static void ilk_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- u32 display_mask, extra_mask;
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ u32 display_mask, extra_mask;
if (GRAPHICS_VER(dev_priv) >= 7) {
display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE_IVB |
@@ -4257,40 +2924,6 @@ static void i965_irq_postinstall(struct drm_i915_private *dev_priv)
i915_enable_asle_pipestat(dev_priv);
}
-static void i915_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
- u32 hotplug_en = hpd_mask_i915[encoder->hpd_pin];
-
- /* HPD sense and interrupt enable are one and the same */
- i915_hotplug_interrupt_update(i915, hotplug_en, hotplug_en);
-}
-
-static void i915_hpd_irq_setup(struct drm_i915_private *dev_priv)
-{
- u32 hotplug_en;
-
- lockdep_assert_held(&dev_priv->irq_lock);
-
- /* Note HDMI and DP share hotplug bits */
- /* enable bits are the same for all generations */
- hotplug_en = intel_hpd_enabled_irqs(dev_priv, hpd_mask_i915);
- /* Programming the CRT detection parameters tends
- to generate a spurious hotplug event about three
- seconds later. So just do it once.
- */
- if (IS_G4X(dev_priv))
- hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
- hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
-
- /* Ignore TV since it's buggy */
- i915_hotplug_interrupt_update_locked(dev_priv,
- HOTPLUG_INT_EN_MASK |
- CRT_HOTPLUG_VOLTAGE_COMPARE_MASK |
- CRT_HOTPLUG_ACTIVATION_PERIOD_64,
- hotplug_en);
-}
-
static irqreturn_t i965_irq_handler(int irq, void *arg)
{
struct drm_i915_private *dev_priv = arg;
@@ -4350,43 +2983,6 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
return ret;
}
-struct intel_hotplug_funcs {
- /* Enable HPD sense and interrupts for all present encoders */
- void (*hpd_irq_setup)(struct drm_i915_private *i915);
- /* Enable HPD sense for a single encoder */
- void (*hpd_enable_detection)(struct intel_encoder *encoder);
-};
-
-#define HPD_FUNCS(platform) \
-static const struct intel_hotplug_funcs platform##_hpd_funcs = { \
- .hpd_irq_setup = platform##_hpd_irq_setup, \
- .hpd_enable_detection = platform##_hpd_enable_detection, \
-}
-
-HPD_FUNCS(i915);
-HPD_FUNCS(xelpdp);
-HPD_FUNCS(dg1);
-HPD_FUNCS(gen11);
-HPD_FUNCS(bxt);
-HPD_FUNCS(icp);
-HPD_FUNCS(spt);
-HPD_FUNCS(ilk);
-#undef HPD_FUNCS
-
-void intel_hpd_enable_detection(struct intel_encoder *encoder)
-{
- struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
- if (i915->display.funcs.hotplug)
- i915->display.funcs.hotplug->hpd_enable_detection(encoder);
-}
-
-void intel_hpd_irq_setup(struct drm_i915_private *i915)
-{
- if (i915->display_irqs_enabled && i915->display.funcs.hotplug)
- i915->display.funcs.hotplug->hpd_irq_setup(i915);
-}
-
/**
* intel_irq_init - initializes irq support
* @dev_priv: i915 device instance
@@ -4409,10 +3005,6 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
if (!HAS_DISPLAY(dev_priv))
return;
- intel_hpd_init_pins(dev_priv);
-
- intel_hpd_init_early(dev_priv);
-
dev_priv->drm.vblank_disable_immediate = true;
/* Most platforms treat the display irq block as an always-on
@@ -4425,27 +3017,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
dev_priv->display_irqs_enabled = false;
- if (HAS_GMCH(dev_priv)) {
- if (I915_HAS_HOTPLUG(dev_priv))
- dev_priv->display.funcs.hotplug = &i915_hpd_funcs;
- } else {
- if (HAS_PCH_DG2(dev_priv))
- 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))
- dev_priv->display.funcs.hotplug = &bxt_hpd_funcs;
- else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
- dev_priv->display.funcs.hotplug = &icp_hpd_funcs;
- else if (INTEL_PCH_TYPE(dev_priv) >= PCH_SPT)
- dev_priv->display.funcs.hotplug = &spt_hpd_funcs;
- else
- dev_priv->display.funcs.hotplug = &ilk_hpd_funcs;
- }
+ intel_hotplug_irq_init(dev_priv);
}
/**
diff --git a/drivers/gpu/drm/i915/i915_irq.h b/drivers/gpu/drm/i915/i915_irq.h
index dd47e473ba4f..913c854f873d 100644
--- a/drivers/gpu/drm/i915/i915_irq.h
+++ b/drivers/gpu/drm/i915/i915_irq.h
@@ -38,18 +38,18 @@ i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
-void intel_hpd_enable_detection(struct intel_encoder *encoder);
-void intel_hpd_irq_setup(struct drm_i915_private *i915);
-void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
- u32 mask,
- u32 bits);
-
+void ilk_update_display_irq(struct drm_i915_private *i915,
+ u32 interrupt_mask, u32 enabled_irq_mask);
void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits);
void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits);
+void bdw_update_port_irq(struct drm_i915_private *i915,
+ u32 interrupt_mask, u32 enabled_irq_mask);
void bdw_enable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
void bdw_disable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
+void ibx_display_interrupt_update(struct drm_i915_private *i915,
+ u32 interrupt_mask, u32 enabled_irq_mask);
void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits);
void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits);
--
2.39.2
^ permalink raw reply related [flat|nested] 8+ messages in thread* [Intel-gfx] [PATCH v3 3/3] drm/i915/irq: split out display irq handling
2023-05-15 10:17 [Intel-gfx] [PATCH v3 1/3] drm/i915/irq: convert gen8_de_irq_handler() to void Jani Nikula
2023-05-15 10:17 ` [Intel-gfx] [PATCH v3 2/3] drm/i915/irq: split out hotplug irq handling Jani Nikula
@ 2023-05-15 10:17 ` Jani Nikula
2023-05-15 22:00 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [v3,1/3] drm/i915/irq: convert gen8_de_irq_handler() to void Patchwork
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Jani Nikula @ 2023-05-15 10:17 UTC (permalink / raw)
To: intel-gfx; +Cc: jani.nikula, rodrigo.vivi
Split (non-hotplug) display irq handling out of i915_irq.[ch] into
display/intel_display_irq.[ch].
v3:
- Preserve [I915_MAX_PIPES] harder (kernel test robot)
v2:
- Rebase
- Preserve [I915_MAX_PIPES] in functions (kernel test robot)
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/display/i9xx_plane.c | 2 +-
drivers/gpu/drm/i915/display/intel_crtc.c | 2 +-
.../gpu/drm/i915/display/intel_display_irq.c | 1668 +++++++++++++++++
.../gpu/drm/i915/display/intel_display_irq.h | 81 +
.../i915/display/intel_display_power_well.c | 1 +
.../drm/i915/display/intel_fifo_underrun.c | 2 +-
.../gpu/drm/i915/display/intel_hotplug_irq.c | 2 +-
drivers/gpu/drm/i915/display/intel_tv.c | 2 +-
.../drm/i915/display/skl_universal_plane.c | 2 +-
drivers/gpu/drm/i915/gt/intel_rps.c | 1 +
drivers/gpu/drm/i915/i915_irq.c | 1666 +---------------
drivers/gpu/drm/i915/i915_irq.h | 46 +-
13 files changed, 1763 insertions(+), 1713 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_display_irq.c
create mode 100644 drivers/gpu/drm/i915/display/intel_display_irq.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 7f7569c5f9a9..310c692e2fcd 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -239,6 +239,7 @@ i915-y += \
display/intel_cursor.o \
display/intel_display.o \
display/intel_display_driver.o \
+ display/intel_display_irq.o \
display/intel_display_power.o \
display/intel_display_power_map.o \
display/intel_display_power_well.o \
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c
index ecaeb7dc196b..616654adbfb8 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -8,12 +8,12 @@
#include <drm/drm_blend.h>
#include <drm/drm_fourcc.h>
-#include "i915_irq.h"
#include "i915_reg.h"
#include "i9xx_plane.h"
#include "intel_atomic.h"
#include "intel_atomic_plane.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_types.h"
#include "intel_fb.h"
#include "intel_fbc.h"
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index ecae9bf05269..93c3226b98c9 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -11,7 +11,6 @@
#include <drm/drm_plane.h>
#include <drm/drm_vblank_work.h>
-#include "i915_irq.h"
#include "i915_vgpu.h"
#include "i9xx_plane.h"
#include "icl_dsi.h"
@@ -21,6 +20,7 @@
#include "intel_crtc.h"
#include "intel_cursor.h"
#include "intel_display_debugfs.h"
+#include "intel_display_irq.h"
#include "intel_display_trace.h"
#include "intel_display_types.h"
#include "intel_drrs.h"
diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c
new file mode 100644
index 000000000000..0eedd1ebb389
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.c
@@ -0,0 +1,1668 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "i915_irq.h"
+#include "i915_reg.h"
+#include "icl_dsi_regs.h"
+#include "intel_display_irq.h"
+#include "intel_display_types.h"
+#include "intel_hotplug_irq.h"
+#include "intel_psr_regs.h"
+#include "intel_crtc.h"
+#include "intel_display_trace.h"
+#include "intel_dp_aux.h"
+#include "intel_gmbus.h"
+#include "intel_fifo_underrun.h"
+#include "intel_psr.h"
+#include "intel_fdi_regs.h"
+#include "gt/intel_rps.h"
+#include "intel_de.h"
+
+static void
+intel_handle_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
+{
+ struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe);
+
+ drm_crtc_handle_vblank(&crtc->base);
+}
+
+/**
+ * ilk_update_display_irq - update DEIMR
+ * @dev_priv: driver private
+ * @interrupt_mask: mask of interrupt bits to update
+ * @enabled_irq_mask: mask of interrupt bits to enable
+ */
+void ilk_update_display_irq(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask, u32 enabled_irq_mask)
+{
+ u32 new_val;
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+ drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
+
+ new_val = dev_priv->irq_mask;
+ new_val &= ~interrupt_mask;
+ new_val |= (~enabled_irq_mask & interrupt_mask);
+
+ if (new_val != dev_priv->irq_mask &&
+ !drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv))) {
+ dev_priv->irq_mask = new_val;
+ intel_uncore_write(&dev_priv->uncore, DEIMR, dev_priv->irq_mask);
+ intel_uncore_posting_read(&dev_priv->uncore, DEIMR);
+ }
+}
+
+void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits)
+{
+ ilk_update_display_irq(i915, bits, bits);
+}
+
+void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits)
+{
+ ilk_update_display_irq(i915, bits, 0);
+}
+
+/**
+ * bdw_update_port_irq - update DE port interrupt
+ * @dev_priv: driver private
+ * @interrupt_mask: mask of interrupt bits to update
+ * @enabled_irq_mask: mask of interrupt bits to enable
+ */
+void bdw_update_port_irq(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask, u32 enabled_irq_mask)
+{
+ u32 new_val;
+ u32 old_val;
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
+
+ if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
+ return;
+
+ old_val = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PORT_IMR);
+
+ new_val = old_val;
+ new_val &= ~interrupt_mask;
+ new_val |= (~enabled_irq_mask & interrupt_mask);
+
+ if (new_val != old_val) {
+ intel_uncore_write(&dev_priv->uncore, GEN8_DE_PORT_IMR, new_val);
+ intel_uncore_posting_read(&dev_priv->uncore, GEN8_DE_PORT_IMR);
+ }
+}
+
+/**
+ * bdw_update_pipe_irq - update DE pipe interrupt
+ * @dev_priv: driver private
+ * @pipe: pipe whose interrupt to update
+ * @interrupt_mask: mask of interrupt bits to update
+ * @enabled_irq_mask: mask of interrupt bits to enable
+ */
+static void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
+ enum pipe pipe, u32 interrupt_mask,
+ u32 enabled_irq_mask)
+{
+ u32 new_val;
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
+
+ if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
+ return;
+
+ new_val = dev_priv->de_irq_mask[pipe];
+ new_val &= ~interrupt_mask;
+ new_val |= (~enabled_irq_mask & interrupt_mask);
+
+ if (new_val != dev_priv->de_irq_mask[pipe]) {
+ dev_priv->de_irq_mask[pipe] = new_val;
+ intel_uncore_write(&dev_priv->uncore, GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]);
+ intel_uncore_posting_read(&dev_priv->uncore, GEN8_DE_PIPE_IMR(pipe));
+ }
+}
+
+void bdw_enable_pipe_irq(struct drm_i915_private *i915,
+ enum pipe pipe, u32 bits)
+{
+ bdw_update_pipe_irq(i915, pipe, bits, bits);
+}
+
+void bdw_disable_pipe_irq(struct drm_i915_private *i915,
+ enum pipe pipe, u32 bits)
+{
+ bdw_update_pipe_irq(i915, pipe, bits, 0);
+}
+
+/**
+ * ibx_display_interrupt_update - update SDEIMR
+ * @dev_priv: driver private
+ * @interrupt_mask: mask of interrupt bits to update
+ * @enabled_irq_mask: mask of interrupt bits to enable
+ */
+void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
+ u32 interrupt_mask,
+ u32 enabled_irq_mask)
+{
+ u32 sdeimr = intel_uncore_read(&dev_priv->uncore, SDEIMR);
+
+ sdeimr &= ~interrupt_mask;
+ sdeimr |= (~enabled_irq_mask & interrupt_mask);
+
+ drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
+ return;
+
+ intel_uncore_write(&dev_priv->uncore, SDEIMR, sdeimr);
+ intel_uncore_posting_read(&dev_priv->uncore, SDEIMR);
+}
+
+void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits)
+{
+ ibx_display_interrupt_update(i915, bits, bits);
+}
+
+void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits)
+{
+ ibx_display_interrupt_update(i915, bits, 0);
+}
+
+u32 i915_pipestat_enable_mask(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ u32 status_mask = dev_priv->pipestat_irq_mask[pipe];
+ u32 enable_mask = status_mask << 16;
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ if (DISPLAY_VER(dev_priv) < 5)
+ goto out;
+
+ /*
+ * On pipe A we don't support the PSR interrupt yet,
+ * on pipe B and C the same bit MBZ.
+ */
+ if (drm_WARN_ON_ONCE(&dev_priv->drm,
+ status_mask & PIPE_A_PSR_STATUS_VLV))
+ return 0;
+ /*
+ * On pipe B and C we don't support the PSR interrupt yet, on pipe
+ * A the same bit is for perf counters which we don't use either.
+ */
+ if (drm_WARN_ON_ONCE(&dev_priv->drm,
+ status_mask & PIPE_B_PSR_STATUS_VLV))
+ return 0;
+
+ enable_mask &= ~(PIPE_FIFO_UNDERRUN_STATUS |
+ SPRITE0_FLIP_DONE_INT_EN_VLV |
+ SPRITE1_FLIP_DONE_INT_EN_VLV);
+ if (status_mask & SPRITE0_FLIP_DONE_INT_STATUS_VLV)
+ enable_mask |= SPRITE0_FLIP_DONE_INT_EN_VLV;
+ if (status_mask & SPRITE1_FLIP_DONE_INT_STATUS_VLV)
+ enable_mask |= SPRITE1_FLIP_DONE_INT_EN_VLV;
+
+out:
+ drm_WARN_ONCE(&dev_priv->drm,
+ enable_mask & ~PIPESTAT_INT_ENABLE_MASK ||
+ status_mask & ~PIPESTAT_INT_STATUS_MASK,
+ "pipe %c: enable_mask=0x%x, status_mask=0x%x\n",
+ pipe_name(pipe), enable_mask, status_mask);
+
+ return enable_mask;
+}
+
+void i915_enable_pipestat(struct drm_i915_private *dev_priv,
+ enum pipe pipe, u32 status_mask)
+{
+ i915_reg_t reg = PIPESTAT(pipe);
+ u32 enable_mask;
+
+ drm_WARN_ONCE(&dev_priv->drm, status_mask & ~PIPESTAT_INT_STATUS_MASK,
+ "pipe %c: status_mask=0x%x\n",
+ pipe_name(pipe), status_mask);
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+ drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv));
+
+ if ((dev_priv->pipestat_irq_mask[pipe] & status_mask) == status_mask)
+ return;
+
+ dev_priv->pipestat_irq_mask[pipe] |= status_mask;
+ enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
+
+ intel_uncore_write(&dev_priv->uncore, reg, enable_mask | status_mask);
+ intel_uncore_posting_read(&dev_priv->uncore, reg);
+}
+
+void i915_disable_pipestat(struct drm_i915_private *dev_priv,
+ enum pipe pipe, u32 status_mask)
+{
+ i915_reg_t reg = PIPESTAT(pipe);
+ u32 enable_mask;
+
+ drm_WARN_ONCE(&dev_priv->drm, status_mask & ~PIPESTAT_INT_STATUS_MASK,
+ "pipe %c: status_mask=0x%x\n",
+ pipe_name(pipe), status_mask);
+
+ lockdep_assert_held(&dev_priv->irq_lock);
+ drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv));
+
+ if ((dev_priv->pipestat_irq_mask[pipe] & status_mask) == 0)
+ return;
+
+ dev_priv->pipestat_irq_mask[pipe] &= ~status_mask;
+ enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
+
+ intel_uncore_write(&dev_priv->uncore, reg, enable_mask | status_mask);
+ intel_uncore_posting_read(&dev_priv->uncore, reg);
+}
+
+static bool i915_has_asle(struct drm_i915_private *dev_priv)
+{
+ if (!dev_priv->display.opregion.asle)
+ return false;
+
+ return IS_PINEVIEW(dev_priv) || IS_MOBILE(dev_priv);
+}
+
+/**
+ * i915_enable_asle_pipestat - enable ASLE pipestat for OpRegion
+ * @dev_priv: i915 device private
+ */
+void i915_enable_asle_pipestat(struct drm_i915_private *dev_priv)
+{
+ if (!i915_has_asle(dev_priv))
+ return;
+
+ spin_lock_irq(&dev_priv->irq_lock);
+
+ i915_enable_pipestat(dev_priv, PIPE_B, PIPE_LEGACY_BLC_EVENT_STATUS);
+ if (DISPLAY_VER(dev_priv) >= 4)
+ i915_enable_pipestat(dev_priv, PIPE_A,
+ PIPE_LEGACY_BLC_EVENT_STATUS);
+
+ spin_unlock_irq(&dev_priv->irq_lock);
+}
+
+#if defined(CONFIG_DEBUG_FS)
+static void display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
+ enum pipe pipe,
+ u32 crc0, u32 crc1,
+ u32 crc2, u32 crc3,
+ u32 crc4)
+{
+ struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe);
+ struct intel_pipe_crc *pipe_crc = &crtc->pipe_crc;
+ u32 crcs[5] = { crc0, crc1, crc2, crc3, crc4 };
+
+ trace_intel_pipe_crc(crtc, crcs);
+
+ spin_lock(&pipe_crc->lock);
+ /*
+ * For some not yet identified reason, the first CRC is
+ * bonkers. So let's just wait for the next vblank and read
+ * out the buggy result.
+ *
+ * On GEN8+ sometimes the second CRC is bonkers as well, so
+ * don't trust that one either.
+ */
+ if (pipe_crc->skipped <= 0 ||
+ (DISPLAY_VER(dev_priv) >= 8 && pipe_crc->skipped == 1)) {
+ pipe_crc->skipped++;
+ spin_unlock(&pipe_crc->lock);
+ return;
+ }
+ spin_unlock(&pipe_crc->lock);
+
+ drm_crtc_add_crc_entry(&crtc->base, true,
+ drm_crtc_accurate_vblank_count(&crtc->base),
+ crcs);
+}
+#else
+static inline void
+display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
+ enum pipe pipe,
+ u32 crc0, u32 crc1,
+ u32 crc2, u32 crc3,
+ u32 crc4) {}
+#endif
+
+static void flip_done_handler(struct drm_i915_private *i915,
+ enum pipe pipe)
+{
+ struct intel_crtc *crtc = intel_crtc_for_pipe(i915, pipe);
+ struct drm_crtc_state *crtc_state = crtc->base.state;
+ struct drm_pending_vblank_event *e = crtc_state->event;
+ struct drm_device *dev = &i915->drm;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev->event_lock, irqflags);
+
+ crtc_state->event = NULL;
+
+ drm_crtc_send_vblank_event(&crtc->base, e);
+
+ spin_unlock_irqrestore(&dev->event_lock, irqflags);
+}
+
+static void hsw_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ display_pipe_crc_irq_handler(dev_priv, pipe,
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_1_IVB(pipe)),
+ 0, 0, 0, 0);
+}
+
+static void ivb_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ display_pipe_crc_irq_handler(dev_priv, pipe,
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_1_IVB(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_2_IVB(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_3_IVB(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_4_IVB(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_5_IVB(pipe)));
+}
+
+static void i9xx_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
+{
+ u32 res1, res2;
+
+ if (DISPLAY_VER(dev_priv) >= 3)
+ res1 = intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RES1_I915(pipe));
+ else
+ res1 = 0;
+
+ if (DISPLAY_VER(dev_priv) >= 5 || IS_G4X(dev_priv))
+ res2 = intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RES2_G4X(pipe));
+ else
+ res2 = 0;
+
+ display_pipe_crc_irq_handler(dev_priv, pipe,
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RED(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_GREEN(pipe)),
+ intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_BLUE(pipe)),
+ res1, res2);
+}
+
+void i9xx_pipestat_irq_reset(struct drm_i915_private *dev_priv)
+{
+ enum pipe pipe;
+
+ for_each_pipe(dev_priv, pipe) {
+ intel_uncore_write(&dev_priv->uncore, PIPESTAT(pipe),
+ PIPESTAT_INT_STATUS_MASK |
+ PIPE_FIFO_UNDERRUN_STATUS);
+
+ dev_priv->pipestat_irq_mask[pipe] = 0;
+ }
+}
+
+void i9xx_pipestat_irq_ack(struct drm_i915_private *dev_priv,
+ u32 iir, u32 pipe_stats[I915_MAX_PIPES])
+{
+ enum pipe pipe;
+
+ spin_lock(&dev_priv->irq_lock);
+
+ if (!dev_priv->display_irqs_enabled) {
+ spin_unlock(&dev_priv->irq_lock);
+ return;
+ }
+
+ for_each_pipe(dev_priv, pipe) {
+ i915_reg_t reg;
+ u32 status_mask, enable_mask, iir_bit = 0;
+
+ /*
+ * PIPESTAT bits get signalled even when the interrupt is
+ * disabled with the mask bits, and some of the status bits do
+ * not generate interrupts at all (like the underrun bit). Hence
+ * we need to be careful that we only handle what we want to
+ * handle.
+ */
+
+ /* fifo underruns are filterered in the underrun handler. */
+ status_mask = PIPE_FIFO_UNDERRUN_STATUS;
+
+ switch (pipe) {
+ default:
+ case PIPE_A:
+ iir_bit = I915_DISPLAY_PIPE_A_EVENT_INTERRUPT;
+ break;
+ case PIPE_B:
+ iir_bit = I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
+ break;
+ case PIPE_C:
+ iir_bit = I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
+ break;
+ }
+ if (iir & iir_bit)
+ status_mask |= dev_priv->pipestat_irq_mask[pipe];
+
+ if (!status_mask)
+ continue;
+
+ reg = PIPESTAT(pipe);
+ pipe_stats[pipe] = intel_uncore_read(&dev_priv->uncore, reg) & status_mask;
+ enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
+
+ /*
+ * Clear the PIPE*STAT regs before the IIR
+ *
+ * Toggle the enable bits to make sure we get an
+ * edge in the ISR pipe event bit if we don't clear
+ * all the enabled status bits. Otherwise the edge
+ * triggered IIR on i965/g4x wouldn't notice that
+ * an interrupt is still pending.
+ */
+ if (pipe_stats[pipe]) {
+ intel_uncore_write(&dev_priv->uncore, reg, pipe_stats[pipe]);
+ intel_uncore_write(&dev_priv->uncore, reg, enable_mask);
+ }
+ }
+ spin_unlock(&dev_priv->irq_lock);
+}
+
+void i8xx_pipestat_irq_handler(struct drm_i915_private *dev_priv,
+ u16 iir, u32 pipe_stats[I915_MAX_PIPES])
+{
+ enum pipe pipe;
+
+ for_each_pipe(dev_priv, pipe) {
+ if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS)
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
+ i9xx_pipe_crc_irq_handler(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+ }
+}
+
+void i915_pipestat_irq_handler(struct drm_i915_private *dev_priv,
+ u32 iir, u32 pipe_stats[I915_MAX_PIPES])
+{
+ bool blc_event = false;
+ enum pipe pipe;
+
+ for_each_pipe(dev_priv, pipe) {
+ if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS)
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS)
+ blc_event = true;
+
+ if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
+ i9xx_pipe_crc_irq_handler(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+ }
+
+ if (blc_event || (iir & I915_ASLE_INTERRUPT))
+ intel_opregion_asle_intr(dev_priv);
+}
+
+void i965_pipestat_irq_handler(struct drm_i915_private *dev_priv,
+ u32 iir, u32 pipe_stats[I915_MAX_PIPES])
+{
+ bool blc_event = false;
+ enum pipe pipe;
+
+ for_each_pipe(dev_priv, pipe) {
+ if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS)
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS)
+ blc_event = true;
+
+ if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
+ i9xx_pipe_crc_irq_handler(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+ }
+
+ if (blc_event || (iir & I915_ASLE_INTERRUPT))
+ intel_opregion_asle_intr(dev_priv);
+
+ if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS)
+ intel_gmbus_irq_handler(dev_priv);
+}
+
+void valleyview_pipestat_irq_handler(struct drm_i915_private *dev_priv,
+ u32 pipe_stats[I915_MAX_PIPES])
+{
+ enum pipe pipe;
+
+ for_each_pipe(dev_priv, pipe) {
+ if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS)
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PLANE_FLIP_DONE_INT_STATUS_VLV)
+ flip_done_handler(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
+ i9xx_pipe_crc_irq_handler(dev_priv, pipe);
+
+ if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+ }
+
+ if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS)
+ intel_gmbus_irq_handler(dev_priv);
+}
+
+static void ibx_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
+{
+ enum pipe pipe;
+ u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK;
+
+ ibx_hpd_irq_handler(dev_priv, hotplug_trigger);
+
+ if (pch_iir & SDE_AUDIO_POWER_MASK) {
+ int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK) >>
+ SDE_AUDIO_POWER_SHIFT);
+ drm_dbg(&dev_priv->drm, "PCH audio power change on port %d\n",
+ port_name(port));
+ }
+
+ if (pch_iir & SDE_AUX_MASK)
+ intel_dp_aux_irq_handler(dev_priv);
+
+ if (pch_iir & SDE_GMBUS)
+ intel_gmbus_irq_handler(dev_priv);
+
+ if (pch_iir & SDE_AUDIO_HDCP_MASK)
+ drm_dbg(&dev_priv->drm, "PCH HDCP audio interrupt\n");
+
+ if (pch_iir & SDE_AUDIO_TRANS_MASK)
+ drm_dbg(&dev_priv->drm, "PCH transcoder audio interrupt\n");
+
+ if (pch_iir & SDE_POISON)
+ drm_err(&dev_priv->drm, "PCH poison interrupt\n");
+
+ if (pch_iir & SDE_FDI_MASK) {
+ for_each_pipe(dev_priv, pipe)
+ drm_dbg(&dev_priv->drm, " pipe %c FDI IIR: 0x%08x\n",
+ pipe_name(pipe),
+ intel_uncore_read(&dev_priv->uncore, FDI_RX_IIR(pipe)));
+ }
+
+ if (pch_iir & (SDE_TRANSB_CRC_DONE | SDE_TRANSA_CRC_DONE))
+ drm_dbg(&dev_priv->drm, "PCH transcoder CRC done interrupt\n");
+
+ if (pch_iir & (SDE_TRANSB_CRC_ERR | SDE_TRANSA_CRC_ERR))
+ drm_dbg(&dev_priv->drm,
+ "PCH transcoder CRC error interrupt\n");
+
+ if (pch_iir & SDE_TRANSA_FIFO_UNDER)
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);
+
+ if (pch_iir & SDE_TRANSB_FIFO_UNDER)
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);
+}
+
+static void ivb_err_int_handler(struct drm_i915_private *dev_priv)
+{
+ u32 err_int = intel_uncore_read(&dev_priv->uncore, GEN7_ERR_INT);
+ enum pipe pipe;
+
+ if (err_int & ERR_INT_POISON)
+ drm_err(&dev_priv->drm, "Poison interrupt\n");
+
+ for_each_pipe(dev_priv, pipe) {
+ if (err_int & ERR_INT_FIFO_UNDERRUN(pipe))
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+
+ if (err_int & ERR_INT_PIPE_CRC_DONE(pipe)) {
+ if (IS_IVYBRIDGE(dev_priv))
+ ivb_pipe_crc_irq_handler(dev_priv, pipe);
+ else
+ hsw_pipe_crc_irq_handler(dev_priv, pipe);
+ }
+ }
+
+ intel_uncore_write(&dev_priv->uncore, GEN7_ERR_INT, err_int);
+}
+
+static void cpt_serr_int_handler(struct drm_i915_private *dev_priv)
+{
+ u32 serr_int = intel_uncore_read(&dev_priv->uncore, SERR_INT);
+ enum pipe pipe;
+
+ if (serr_int & SERR_INT_POISON)
+ drm_err(&dev_priv->drm, "PCH poison interrupt\n");
+
+ for_each_pipe(dev_priv, pipe)
+ if (serr_int & SERR_INT_TRANS_FIFO_UNDERRUN(pipe))
+ intel_pch_fifo_underrun_irq_handler(dev_priv, pipe);
+
+ intel_uncore_write(&dev_priv->uncore, SERR_INT, serr_int);
+}
+
+static void cpt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
+{
+ enum pipe pipe;
+ u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT;
+
+ ibx_hpd_irq_handler(dev_priv, hotplug_trigger);
+
+ if (pch_iir & SDE_AUDIO_POWER_MASK_CPT) {
+ int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK_CPT) >>
+ SDE_AUDIO_POWER_SHIFT_CPT);
+ drm_dbg(&dev_priv->drm, "PCH audio power change on port %c\n",
+ port_name(port));
+ }
+
+ if (pch_iir & SDE_AUX_MASK_CPT)
+ intel_dp_aux_irq_handler(dev_priv);
+
+ if (pch_iir & SDE_GMBUS_CPT)
+ intel_gmbus_irq_handler(dev_priv);
+
+ if (pch_iir & SDE_AUDIO_CP_REQ_CPT)
+ drm_dbg(&dev_priv->drm, "Audio CP request interrupt\n");
+
+ if (pch_iir & SDE_AUDIO_CP_CHG_CPT)
+ drm_dbg(&dev_priv->drm, "Audio CP change interrupt\n");
+
+ if (pch_iir & SDE_FDI_MASK_CPT) {
+ for_each_pipe(dev_priv, pipe)
+ drm_dbg(&dev_priv->drm, " pipe %c FDI IIR: 0x%08x\n",
+ pipe_name(pipe),
+ intel_uncore_read(&dev_priv->uncore, FDI_RX_IIR(pipe)));
+ }
+
+ if (pch_iir & SDE_ERROR_CPT)
+ cpt_serr_int_handler(dev_priv);
+}
+
+void ilk_display_irq_handler(struct drm_i915_private *dev_priv, u32 de_iir)
+{
+ enum pipe pipe;
+ u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG;
+
+ if (hotplug_trigger)
+ ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
+
+ if (de_iir & DE_AUX_CHANNEL_A)
+ intel_dp_aux_irq_handler(dev_priv);
+
+ if (de_iir & DE_GSE)
+ intel_opregion_asle_intr(dev_priv);
+
+ if (de_iir & DE_POISON)
+ drm_err(&dev_priv->drm, "Poison interrupt\n");
+
+ for_each_pipe(dev_priv, pipe) {
+ if (de_iir & DE_PIPE_VBLANK(pipe))
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (de_iir & DE_PLANE_FLIP_DONE(pipe))
+ flip_done_handler(dev_priv, pipe);
+
+ if (de_iir & DE_PIPE_FIFO_UNDERRUN(pipe))
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+
+ if (de_iir & DE_PIPE_CRC_DONE(pipe))
+ i9xx_pipe_crc_irq_handler(dev_priv, pipe);
+ }
+
+ /* check event from PCH */
+ if (de_iir & DE_PCH_EVENT) {
+ u32 pch_iir = intel_uncore_read(&dev_priv->uncore, SDEIIR);
+
+ if (HAS_PCH_CPT(dev_priv))
+ cpt_irq_handler(dev_priv, pch_iir);
+ else
+ ibx_irq_handler(dev_priv, pch_iir);
+
+ /* should clear PCH hotplug event before clear CPU irq */
+ intel_uncore_write(&dev_priv->uncore, SDEIIR, pch_iir);
+ }
+
+ if (DISPLAY_VER(dev_priv) == 5 && de_iir & DE_PCU_EVENT)
+ gen5_rps_irq_handler(&to_gt(dev_priv)->rps);
+}
+
+void ivb_display_irq_handler(struct drm_i915_private *dev_priv, u32 de_iir)
+{
+ enum pipe pipe;
+ u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG_IVB;
+
+ if (hotplug_trigger)
+ ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
+
+ if (de_iir & DE_ERR_INT_IVB)
+ ivb_err_int_handler(dev_priv);
+
+ if (de_iir & DE_AUX_CHANNEL_A_IVB)
+ intel_dp_aux_irq_handler(dev_priv);
+
+ if (de_iir & DE_GSE_IVB)
+ intel_opregion_asle_intr(dev_priv);
+
+ for_each_pipe(dev_priv, pipe) {
+ if (de_iir & DE_PIPE_VBLANK_IVB(pipe))
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (de_iir & DE_PLANE_FLIP_DONE_IVB(pipe))
+ flip_done_handler(dev_priv, pipe);
+ }
+
+ /* check event from PCH */
+ if (!HAS_PCH_NOP(dev_priv) && (de_iir & DE_PCH_EVENT_IVB)) {
+ u32 pch_iir = intel_uncore_read(&dev_priv->uncore, SDEIIR);
+
+ cpt_irq_handler(dev_priv, pch_iir);
+
+ /* clear PCH hotplug event before clear CPU irq */
+ intel_uncore_write(&dev_priv->uncore, SDEIIR, pch_iir);
+ }
+}
+
+static u32 gen8_de_port_aux_mask(struct drm_i915_private *dev_priv)
+{
+ u32 mask;
+
+ if (DISPLAY_VER(dev_priv) >= 14)
+ return TGL_DE_PORT_AUX_DDIA |
+ TGL_DE_PORT_AUX_DDIB;
+ else if (DISPLAY_VER(dev_priv) >= 13)
+ return TGL_DE_PORT_AUX_DDIA |
+ TGL_DE_PORT_AUX_DDIB |
+ TGL_DE_PORT_AUX_DDIC |
+ XELPD_DE_PORT_AUX_DDID |
+ XELPD_DE_PORT_AUX_DDIE |
+ TGL_DE_PORT_AUX_USBC1 |
+ TGL_DE_PORT_AUX_USBC2 |
+ TGL_DE_PORT_AUX_USBC3 |
+ TGL_DE_PORT_AUX_USBC4;
+ else if (DISPLAY_VER(dev_priv) >= 12)
+ return TGL_DE_PORT_AUX_DDIA |
+ TGL_DE_PORT_AUX_DDIB |
+ TGL_DE_PORT_AUX_DDIC |
+ TGL_DE_PORT_AUX_USBC1 |
+ TGL_DE_PORT_AUX_USBC2 |
+ TGL_DE_PORT_AUX_USBC3 |
+ TGL_DE_PORT_AUX_USBC4 |
+ TGL_DE_PORT_AUX_USBC5 |
+ TGL_DE_PORT_AUX_USBC6;
+
+ mask = GEN8_AUX_CHANNEL_A;
+ if (DISPLAY_VER(dev_priv) >= 9)
+ mask |= GEN9_AUX_CHANNEL_B |
+ GEN9_AUX_CHANNEL_C |
+ GEN9_AUX_CHANNEL_D;
+
+ if (DISPLAY_VER(dev_priv) == 11) {
+ mask |= ICL_AUX_CHANNEL_F;
+ mask |= ICL_AUX_CHANNEL_E;
+ }
+
+ return mask;
+}
+
+static u32 gen8_de_pipe_fault_mask(struct drm_i915_private *dev_priv)
+{
+ if (DISPLAY_VER(dev_priv) >= 13 || HAS_D12_PLANE_MINIMIZATION(dev_priv))
+ return RKL_DE_PIPE_IRQ_FAULT_ERRORS;
+ else if (DISPLAY_VER(dev_priv) >= 11)
+ return GEN11_DE_PIPE_IRQ_FAULT_ERRORS;
+ else if (DISPLAY_VER(dev_priv) >= 9)
+ return GEN9_DE_PIPE_IRQ_FAULT_ERRORS;
+ else
+ return GEN8_DE_PIPE_IRQ_FAULT_ERRORS;
+}
+
+static void
+gen8_de_misc_irq_handler(struct drm_i915_private *dev_priv, u32 iir)
+{
+ bool found = false;
+
+ if (iir & GEN8_DE_MISC_GSE) {
+ intel_opregion_asle_intr(dev_priv);
+ found = true;
+ }
+
+ if (iir & GEN8_DE_EDP_PSR) {
+ struct intel_encoder *encoder;
+ u32 psr_iir;
+ i915_reg_t iir_reg;
+
+ for_each_intel_encoder_with_psr(&dev_priv->drm, encoder) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ if (DISPLAY_VER(dev_priv) >= 12)
+ iir_reg = TRANS_PSR_IIR(intel_dp->psr.transcoder);
+ else
+ iir_reg = EDP_PSR_IIR;
+
+ psr_iir = intel_uncore_rmw(&dev_priv->uncore, iir_reg, 0, 0);
+
+ if (psr_iir)
+ found = true;
+
+ intel_psr_irq_handler(intel_dp, psr_iir);
+
+ /* prior GEN12 only have one EDP PSR */
+ if (DISPLAY_VER(dev_priv) < 12)
+ break;
+ }
+ }
+
+ if (!found)
+ drm_err(&dev_priv->drm, "Unexpected DE Misc interrupt\n");
+}
+
+static void gen11_dsi_te_interrupt_handler(struct drm_i915_private *dev_priv,
+ u32 te_trigger)
+{
+ enum pipe pipe = INVALID_PIPE;
+ enum transcoder dsi_trans;
+ enum port port;
+ u32 val, tmp;
+
+ /*
+ * Incase of dual link, TE comes from DSI_1
+ * this is to check if dual link is enabled
+ */
+ val = intel_uncore_read(&dev_priv->uncore, TRANS_DDI_FUNC_CTL2(TRANSCODER_DSI_0));
+ val &= PORT_SYNC_MODE_ENABLE;
+
+ /*
+ * if dual link is enabled, then read DSI_0
+ * transcoder registers
+ */
+ port = ((te_trigger & DSI1_TE && val) || (te_trigger & DSI0_TE)) ?
+ PORT_A : PORT_B;
+ dsi_trans = (port == PORT_A) ? TRANSCODER_DSI_0 : TRANSCODER_DSI_1;
+
+ /* Check if DSI configured in command mode */
+ val = intel_uncore_read(&dev_priv->uncore, DSI_TRANS_FUNC_CONF(dsi_trans));
+ val = val & OP_MODE_MASK;
+
+ if (val != CMD_MODE_NO_GATE && val != CMD_MODE_TE_GATE) {
+ drm_err(&dev_priv->drm, "DSI trancoder not configured in command mode\n");
+ return;
+ }
+
+ /* Get PIPE for handling VBLANK event */
+ val = intel_uncore_read(&dev_priv->uncore, TRANS_DDI_FUNC_CTL(dsi_trans));
+ switch (val & TRANS_DDI_EDP_INPUT_MASK) {
+ case TRANS_DDI_EDP_INPUT_A_ON:
+ pipe = PIPE_A;
+ break;
+ case TRANS_DDI_EDP_INPUT_B_ONOFF:
+ pipe = PIPE_B;
+ break;
+ case TRANS_DDI_EDP_INPUT_C_ONOFF:
+ pipe = PIPE_C;
+ break;
+ default:
+ drm_err(&dev_priv->drm, "Invalid PIPE\n");
+ return;
+ }
+
+ intel_handle_vblank(dev_priv, pipe);
+
+ /* clear TE in dsi IIR */
+ port = (te_trigger & DSI1_TE) ? PORT_B : PORT_A;
+ tmp = intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_IDENT_REG(port), 0, 0);
+}
+
+static u32 gen8_de_pipe_flip_done_mask(struct drm_i915_private *i915)
+{
+ if (DISPLAY_VER(i915) >= 9)
+ return GEN9_PIPE_PLANE1_FLIP_DONE;
+ else
+ return GEN8_PIPE_PRIMARY_FLIP_DONE;
+}
+
+u32 gen8_de_pipe_underrun_mask(struct drm_i915_private *dev_priv)
+{
+ u32 mask = GEN8_PIPE_FIFO_UNDERRUN;
+
+ if (DISPLAY_VER(dev_priv) >= 13)
+ mask |= XELPD_PIPE_SOFT_UNDERRUN |
+ XELPD_PIPE_HARD_UNDERRUN;
+
+ 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);
+}
+
+void gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
+{
+ u32 iir;
+ enum pipe pipe;
+
+ drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_DISPLAY(dev_priv));
+
+ if (master_ctl & GEN8_DE_MISC_IRQ) {
+ iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_MISC_IIR);
+ if (iir) {
+ intel_uncore_write(&dev_priv->uncore, GEN8_DE_MISC_IIR, iir);
+ gen8_de_misc_irq_handler(dev_priv, iir);
+ } else {
+ drm_err_ratelimited(&dev_priv->drm,
+ "The master control interrupt lied (DE MISC)!\n");
+ }
+ }
+
+ if (DISPLAY_VER(dev_priv) >= 11 && (master_ctl & GEN11_DE_HPD_IRQ)) {
+ iir = intel_uncore_read(&dev_priv->uncore, GEN11_DE_HPD_IIR);
+ if (iir) {
+ intel_uncore_write(&dev_priv->uncore, GEN11_DE_HPD_IIR, iir);
+ gen11_hpd_irq_handler(dev_priv, iir);
+ } else {
+ drm_err_ratelimited(&dev_priv->drm,
+ "The master control interrupt lied, (DE HPD)!\n");
+ }
+ }
+
+ if (master_ctl & GEN8_DE_PORT_IRQ) {
+ iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PORT_IIR);
+ if (iir) {
+ bool found = false;
+
+ intel_uncore_write(&dev_priv->uncore, GEN8_DE_PORT_IIR, iir);
+
+ if (iir & gen8_de_port_aux_mask(dev_priv)) {
+ intel_dp_aux_irq_handler(dev_priv);
+ found = true;
+ }
+
+ if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) {
+ u32 hotplug_trigger = iir & BXT_DE_PORT_HOTPLUG_MASK;
+
+ if (hotplug_trigger) {
+ bxt_hpd_irq_handler(dev_priv, hotplug_trigger);
+ found = true;
+ }
+ } else if (IS_BROADWELL(dev_priv)) {
+ u32 hotplug_trigger = iir & BDW_DE_PORT_HOTPLUG_MASK;
+
+ if (hotplug_trigger) {
+ ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
+ found = true;
+ }
+ }
+
+ if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) &&
+ (iir & BXT_DE_PORT_GMBUS)) {
+ intel_gmbus_irq_handler(dev_priv);
+ found = true;
+ }
+
+ if (DISPLAY_VER(dev_priv) >= 11) {
+ u32 te_trigger = iir & (DSI0_TE | DSI1_TE);
+
+ if (te_trigger) {
+ gen11_dsi_te_interrupt_handler(dev_priv, te_trigger);
+ found = true;
+ }
+ }
+
+ if (!found)
+ drm_err_ratelimited(&dev_priv->drm,
+ "Unexpected DE Port interrupt\n");
+ } else {
+ drm_err_ratelimited(&dev_priv->drm,
+ "The master control interrupt lied (DE PORT)!\n");
+ }
+ }
+
+ for_each_pipe(dev_priv, pipe) {
+ u32 fault_errors;
+
+ if (!(master_ctl & GEN8_DE_PIPE_IRQ(pipe)))
+ continue;
+
+ iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PIPE_IIR(pipe));
+ if (!iir) {
+ drm_err_ratelimited(&dev_priv->drm,
+ "The master control interrupt lied (DE PIPE)!\n");
+ continue;
+ }
+
+ intel_uncore_write(&dev_priv->uncore, GEN8_DE_PIPE_IIR(pipe), iir);
+
+ if (iir & GEN8_PIPE_VBLANK)
+ intel_handle_vblank(dev_priv, pipe);
+
+ if (iir & gen8_de_pipe_flip_done_mask(dev_priv))
+ flip_done_handler(dev_priv, pipe);
+
+ if (iir & GEN8_PIPE_CDCLK_CRC_DONE)
+ hsw_pipe_crc_irq_handler(dev_priv, pipe);
+
+ if (iir & gen8_de_pipe_underrun_mask(dev_priv))
+ intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
+
+ fault_errors = iir & gen8_de_pipe_fault_mask(dev_priv);
+ if (fault_errors)
+ drm_err_ratelimited(&dev_priv->drm,
+ "Fault errors on pipe %c: 0x%08x\n",
+ pipe_name(pipe),
+ fault_errors);
+ }
+
+ 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.
+ */
+ gen8_read_and_ack_pch_irqs(dev_priv, &iir, &pica_iir);
+ if (iir) {
+ 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)
+ spt_irq_handler(dev_priv, iir);
+ else
+ cpt_irq_handler(dev_priv, iir);
+ } else {
+ /*
+ * Like on previous PCH there seems to be something
+ * fishy going on with forwarding PCH interrupts.
+ */
+ drm_dbg(&dev_priv->drm,
+ "The master control interrupt lied (SDE)!\n");
+ }
+ }
+}
+
+u32 gen11_gu_misc_irq_ack(struct drm_i915_private *i915, const u32 master_ctl)
+{
+ void __iomem * const regs = i915->uncore.regs;
+ u32 iir;
+
+ if (!(master_ctl & GEN11_GU_MISC_IRQ))
+ return 0;
+
+ iir = raw_reg_read(regs, GEN11_GU_MISC_IIR);
+ if (likely(iir))
+ raw_reg_write(regs, GEN11_GU_MISC_IIR, iir);
+
+ return iir;
+}
+
+void gen11_gu_misc_irq_handler(struct drm_i915_private *i915, const u32 iir)
+{
+ if (iir & GEN11_GU_MISC_GSE)
+ intel_opregion_asle_intr(i915);
+}
+
+void gen11_display_irq_handler(struct drm_i915_private *i915)
+{
+ void __iomem * const regs = i915->uncore.regs;
+ const u32 disp_ctl = raw_reg_read(regs, GEN11_DISPLAY_INT_CTL);
+
+ disable_rpm_wakeref_asserts(&i915->runtime_pm);
+ /*
+ * GEN11_DISPLAY_INT_CTL has same format as GEN8_MASTER_IRQ
+ * for the display related bits.
+ */
+ raw_reg_write(regs, GEN11_DISPLAY_INT_CTL, 0x0);
+ gen8_de_irq_handler(i915, disp_ctl);
+ raw_reg_write(regs, GEN11_DISPLAY_INT_CTL,
+ GEN11_DISPLAY_IRQ_ENABLE);
+
+ enable_rpm_wakeref_asserts(&i915->runtime_pm);
+}
+
+/* Called from drm generic code, passed 'crtc' which
+ * we use as a pipe index
+ */
+int i8xx_enable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ i915_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_STATUS);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+
+ return 0;
+}
+
+int i915gm_enable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+
+ /*
+ * Vblank interrupts fail to wake the device up from C2+.
+ * Disabling render clock gating during C-states avoids
+ * the problem. There is a small power cost so we do this
+ * only when vblank interrupts are actually enabled.
+ */
+ if (dev_priv->vblank_enabled++ == 0)
+ intel_uncore_write(&dev_priv->uncore, SCPD0, _MASKED_BIT_ENABLE(CSTATE_RENDER_CLOCK_GATE_DISABLE));
+
+ return i8xx_enable_vblank(crtc);
+}
+
+int i965_enable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ i915_enable_pipestat(dev_priv, pipe,
+ PIPE_START_VBLANK_INTERRUPT_STATUS);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+
+ return 0;
+}
+
+int ilk_enable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+ u32 bit = DISPLAY_VER(dev_priv) >= 7 ?
+ DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ ilk_enable_display_irq(dev_priv, bit);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+
+ /* Even though there is no DMC, frame counter can get stuck when
+ * PSR is active as no frames are generated.
+ */
+ if (HAS_PSR(dev_priv))
+ drm_crtc_vblank_restore(crtc);
+
+ return 0;
+}
+
+static bool gen11_dsi_configure_te(struct intel_crtc *intel_crtc,
+ bool enable)
+{
+ struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
+ enum port port;
+
+ if (!(intel_crtc->mode_flags &
+ (I915_MODE_FLAG_DSI_USE_TE1 | I915_MODE_FLAG_DSI_USE_TE0)))
+ return false;
+
+ /* for dual link cases we consider TE from slave */
+ if (intel_crtc->mode_flags & I915_MODE_FLAG_DSI_USE_TE1)
+ port = PORT_B;
+ else
+ port = PORT_A;
+
+ intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_MASK_REG(port), DSI_TE_EVENT,
+ enable ? 0 : DSI_TE_EVENT);
+
+ intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_IDENT_REG(port), 0, 0);
+
+ return true;
+}
+
+int bdw_enable_vblank(struct drm_crtc *_crtc)
+{
+ struct intel_crtc *crtc = to_intel_crtc(_crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum pipe pipe = crtc->pipe;
+ unsigned long irqflags;
+
+ if (gen11_dsi_configure_te(crtc, true))
+ return 0;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ bdw_enable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+
+ /* Even if there is no DMC, frame counter can get stuck when
+ * PSR is active as no frames are generated, so check only for PSR.
+ */
+ if (HAS_PSR(dev_priv))
+ drm_crtc_vblank_restore(&crtc->base);
+
+ return 0;
+}
+
+/* Called from drm generic code, passed 'crtc' which
+ * we use as a pipe index
+ */
+void i8xx_disable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ i915_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_STATUS);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+void i915gm_disable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+
+ i8xx_disable_vblank(crtc);
+
+ if (--dev_priv->vblank_enabled == 0)
+ intel_uncore_write(&dev_priv->uncore, SCPD0, _MASKED_BIT_DISABLE(CSTATE_RENDER_CLOCK_GATE_DISABLE));
+}
+
+void i965_disable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ i915_disable_pipestat(dev_priv, pipe,
+ PIPE_START_VBLANK_INTERRUPT_STATUS);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+void ilk_disable_vblank(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+ enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ unsigned long irqflags;
+ u32 bit = DISPLAY_VER(dev_priv) >= 7 ?
+ DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ ilk_disable_display_irq(dev_priv, bit);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+void bdw_disable_vblank(struct drm_crtc *_crtc)
+{
+ struct intel_crtc *crtc = to_intel_crtc(_crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum pipe pipe = crtc->pipe;
+ unsigned long irqflags;
+
+ if (gen11_dsi_configure_te(crtc, false))
+ return;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+
+ if (IS_CHERRYVIEW(dev_priv))
+ intel_uncore_write(uncore, DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
+ else
+ intel_uncore_write(uncore, DPINVGTT, DPINVGTT_STATUS_MASK_VLV);
+
+ i915_hotplug_interrupt_update_locked(dev_priv, 0xffffffff, 0);
+ intel_uncore_rmw(uncore, PORT_HOTPLUG_STAT, 0, 0);
+
+ i9xx_pipestat_irq_reset(dev_priv);
+
+ GEN3_IRQ_RESET(uncore, VLV_);
+ dev_priv->irq_mask = ~0u;
+}
+
+void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+
+ u32 pipestat_mask;
+ u32 enable_mask;
+ enum pipe pipe;
+
+ pipestat_mask = PIPE_CRC_DONE_INTERRUPT_STATUS;
+
+ i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
+ for_each_pipe(dev_priv, pipe)
+ i915_enable_pipestat(dev_priv, pipe, pipestat_mask);
+
+ enable_mask = I915_DISPLAY_PORT_INTERRUPT |
+ I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
+ I915_LPE_PIPE_A_INTERRUPT |
+ I915_LPE_PIPE_B_INTERRUPT;
+
+ if (IS_CHERRYVIEW(dev_priv))
+ enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT |
+ I915_LPE_PIPE_C_INTERRUPT;
+
+ drm_WARN_ON(&dev_priv->drm, dev_priv->irq_mask != ~0u);
+
+ dev_priv->irq_mask = ~enable_mask;
+
+ GEN3_IRQ_INIT(uncore, VLV_, dev_priv->irq_mask, enable_mask);
+}
+
+void gen8_display_irq_reset(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ enum pipe pipe;
+
+ if (!HAS_DISPLAY(dev_priv))
+ return;
+
+ intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff);
+ intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff);
+
+ for_each_pipe(dev_priv, pipe)
+ if (intel_display_power_is_enabled(dev_priv,
+ POWER_DOMAIN_PIPE(pipe)))
+ GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
+
+ GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_);
+ GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_);
+}
+
+void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ enum pipe pipe;
+ u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
+ BIT(TRANSCODER_C) | BIT(TRANSCODER_D);
+
+ if (!HAS_DISPLAY(dev_priv))
+ return;
+
+ intel_uncore_write(uncore, GEN11_DISPLAY_INT_CTL, 0);
+
+ if (DISPLAY_VER(dev_priv) >= 12) {
+ enum transcoder trans;
+
+ for_each_cpu_transcoder_masked(dev_priv, trans, trans_mask) {
+ enum intel_display_power_domain domain;
+
+ domain = POWER_DOMAIN_TRANSCODER(trans);
+ if (!intel_display_power_is_enabled(dev_priv, domain))
+ continue;
+
+ intel_uncore_write(uncore, TRANS_PSR_IMR(trans), 0xffffffff);
+ intel_uncore_write(uncore, TRANS_PSR_IIR(trans), 0xffffffff);
+ }
+ } else {
+ intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff);
+ intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff);
+ }
+
+ for_each_pipe(dev_priv, pipe)
+ if (intel_display_power_is_enabled(dev_priv,
+ POWER_DOMAIN_PIPE(pipe)))
+ GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
+
+ GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_);
+ GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_);
+
+ 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);
+}
+
+void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
+ u8 pipe_mask)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ u32 extra_ier = GEN8_PIPE_VBLANK |
+ gen8_de_pipe_underrun_mask(dev_priv) |
+ gen8_de_pipe_flip_done_mask(dev_priv);
+ enum pipe pipe;
+
+ spin_lock_irq(&dev_priv->irq_lock);
+
+ if (!intel_irqs_enabled(dev_priv)) {
+ spin_unlock_irq(&dev_priv->irq_lock);
+ return;
+ }
+
+ for_each_pipe_masked(dev_priv, pipe, pipe_mask)
+ GEN8_IRQ_INIT_NDX(uncore, DE_PIPE, pipe,
+ dev_priv->de_irq_mask[pipe],
+ ~dev_priv->de_irq_mask[pipe] | extra_ier);
+
+ spin_unlock_irq(&dev_priv->irq_lock);
+}
+
+void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
+ u8 pipe_mask)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ enum pipe pipe;
+
+ spin_lock_irq(&dev_priv->irq_lock);
+
+ if (!intel_irqs_enabled(dev_priv)) {
+ spin_unlock_irq(&dev_priv->irq_lock);
+ return;
+ }
+
+ for_each_pipe_masked(dev_priv, pipe, pipe_mask)
+ GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
+
+ spin_unlock_irq(&dev_priv->irq_lock);
+
+ /* make sure we're done processing display irqs */
+ intel_synchronize_irq(dev_priv);
+}
+
+/*
+ * SDEIER is also touched by the interrupt handler to work around missed PCH
+ * interrupts. Hence we can't update it after the interrupt handler is enabled -
+ * instead we unconditionally enable all PCH interrupt sources here, but then
+ * only unmask them as needed with SDEIMR.
+ *
+ * Note that we currently do this after installing the interrupt handler,
+ * but before we enable the master interrupt. That should be sufficient
+ * to avoid races with the irq handler, assuming we have MSI. Shared legacy
+ * interrupts could still race.
+ */
+void ibx_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ u32 mask;
+
+ if (HAS_PCH_NOP(dev_priv))
+ return;
+
+ if (HAS_PCH_IBX(dev_priv))
+ mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
+ else if (HAS_PCH_CPT(dev_priv) || HAS_PCH_LPT(dev_priv))
+ mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
+ else
+ mask = SDE_GMBUS_CPT;
+
+ GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
+}
+
+void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv)
+{
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ if (dev_priv->display_irqs_enabled)
+ return;
+
+ dev_priv->display_irqs_enabled = true;
+
+ if (intel_irqs_enabled(dev_priv)) {
+ vlv_display_irq_reset(dev_priv);
+ vlv_display_irq_postinstall(dev_priv);
+ }
+}
+
+void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv)
+{
+ lockdep_assert_held(&dev_priv->irq_lock);
+
+ if (!dev_priv->display_irqs_enabled)
+ return;
+
+ dev_priv->display_irqs_enabled = false;
+
+ if (intel_irqs_enabled(dev_priv))
+ vlv_display_irq_reset(dev_priv);
+}
+
+void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+
+ u32 de_pipe_masked = gen8_de_pipe_fault_mask(dev_priv) |
+ GEN8_PIPE_CDCLK_CRC_DONE;
+ u32 de_pipe_enables;
+ u32 de_port_masked = gen8_de_port_aux_mask(dev_priv);
+ u32 de_port_enables;
+ u32 de_misc_masked = GEN8_DE_EDP_PSR;
+ u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
+ BIT(TRANSCODER_C) | BIT(TRANSCODER_D);
+ enum pipe pipe;
+
+ if (!HAS_DISPLAY(dev_priv))
+ return;
+
+ if (DISPLAY_VER(dev_priv) <= 10)
+ de_misc_masked |= GEN8_DE_MISC_GSE;
+
+ if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
+ de_port_masked |= BXT_DE_PORT_GMBUS;
+
+ if (DISPLAY_VER(dev_priv) >= 11) {
+ enum port port;
+
+ if (intel_bios_is_dsi_present(dev_priv, &port))
+ de_port_masked |= DSI0_TE | DSI1_TE;
+ }
+
+ de_pipe_enables = de_pipe_masked |
+ GEN8_PIPE_VBLANK |
+ gen8_de_pipe_underrun_mask(dev_priv) |
+ gen8_de_pipe_flip_done_mask(dev_priv);
+
+ de_port_enables = de_port_masked;
+ if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
+ de_port_enables |= BXT_DE_PORT_HOTPLUG_MASK;
+ else if (IS_BROADWELL(dev_priv))
+ de_port_enables |= BDW_DE_PORT_HOTPLUG_MASK;
+
+ if (DISPLAY_VER(dev_priv) >= 12) {
+ enum transcoder trans;
+
+ for_each_cpu_transcoder_masked(dev_priv, trans, trans_mask) {
+ enum intel_display_power_domain domain;
+
+ domain = POWER_DOMAIN_TRANSCODER(trans);
+ if (!intel_display_power_is_enabled(dev_priv, domain))
+ continue;
+
+ gen3_assert_iir_is_zero(uncore, TRANS_PSR_IIR(trans));
+ }
+ } else {
+ gen3_assert_iir_is_zero(uncore, EDP_PSR_IIR);
+ }
+
+ for_each_pipe(dev_priv, pipe) {
+ dev_priv->de_irq_mask[pipe] = ~de_pipe_masked;
+
+ if (intel_display_power_is_enabled(dev_priv,
+ POWER_DOMAIN_PIPE(pipe)))
+ GEN8_IRQ_INIT_NDX(uncore, DE_PIPE, pipe,
+ dev_priv->de_irq_mask[pipe],
+ de_pipe_enables);
+ }
+
+ 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 (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;
+
+ GEN3_IRQ_INIT(uncore, GEN11_DE_HPD_, ~de_hpd_masked,
+ de_hpd_enables);
+ }
+}
+
+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);
+}
+
+void icp_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ struct intel_uncore *uncore = &dev_priv->uncore;
+ u32 mask = SDE_GMBUS_ICP;
+
+ GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
+}
+
+void gen11_de_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ if (!HAS_DISPLAY(dev_priv))
+ return;
+
+ gen8_de_irq_postinstall(dev_priv);
+
+ intel_uncore_write(&dev_priv->uncore, GEN11_DISPLAY_INT_CTL,
+ GEN11_DISPLAY_IRQ_ENABLE);
+}
+
diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.h b/drivers/gpu/drm/i915/display/intel_display_irq.h
new file mode 100644
index 000000000000..874893f4f16d
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_DISPLAY_IRQ_H__
+#define __INTEL_DISPLAY_IRQ_H__
+
+#include <linux/types.h>
+
+#include "intel_display_limits.h"
+
+enum pipe;
+struct drm_i915_private;
+struct drm_crtc;
+
+void valleyview_enable_display_irqs(struct drm_i915_private *i915);
+void valleyview_disable_display_irqs(struct drm_i915_private *i915);
+
+void ilk_update_display_irq(struct drm_i915_private *i915,
+ u32 interrupt_mask, u32 enabled_irq_mask);
+void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits);
+void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits);
+
+void bdw_update_port_irq(struct drm_i915_private *i915, u32 interrupt_mask, u32 enabled_irq_mask);
+void bdw_enable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
+void bdw_disable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
+
+void ibx_display_interrupt_update(struct drm_i915_private *i915,
+ u32 interrupt_mask, u32 enabled_irq_mask);
+void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits);
+void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits);
+
+void gen8_irq_power_well_post_enable(struct drm_i915_private *i915, u8 pipe_mask);
+void gen8_irq_power_well_pre_disable(struct drm_i915_private *i915, u8 pipe_mask);
+u32 gen8_de_pipe_underrun_mask(struct drm_i915_private *i915);
+
+int i8xx_enable_vblank(struct drm_crtc *crtc);
+int i915gm_enable_vblank(struct drm_crtc *crtc);
+int i965_enable_vblank(struct drm_crtc *crtc);
+int ilk_enable_vblank(struct drm_crtc *crtc);
+int bdw_enable_vblank(struct drm_crtc *crtc);
+void i8xx_disable_vblank(struct drm_crtc *crtc);
+void i915gm_disable_vblank(struct drm_crtc *crtc);
+void i965_disable_vblank(struct drm_crtc *crtc);
+void ilk_disable_vblank(struct drm_crtc *crtc);
+void bdw_disable_vblank(struct drm_crtc *crtc);
+
+void ivb_display_irq_handler(struct drm_i915_private *i915, u32 de_iir);
+void ilk_display_irq_handler(struct drm_i915_private *i915, u32 de_iir);
+void gen8_de_irq_handler(struct drm_i915_private *i915, u32 master_ctl);
+void gen11_display_irq_handler(struct drm_i915_private *i915);
+
+u32 gen11_gu_misc_irq_ack(struct drm_i915_private *i915, const u32 master_ctl);
+void gen11_gu_misc_irq_handler(struct drm_i915_private *i915, const u32 iir);
+
+void vlv_display_irq_reset(struct drm_i915_private *i915);
+void gen8_display_irq_reset(struct drm_i915_private *i915);
+void gen11_display_irq_reset(struct drm_i915_private *i915);
+
+void ibx_irq_postinstall(struct drm_i915_private *i915);
+void vlv_display_irq_postinstall(struct drm_i915_private *i915);
+void icp_irq_postinstall(struct drm_i915_private *i915);
+void gen8_de_irq_postinstall(struct drm_i915_private *i915);
+void mtp_irq_postinstall(struct drm_i915_private *i915);
+void gen11_de_irq_postinstall(struct drm_i915_private *i915);
+
+u32 i915_pipestat_enable_mask(struct drm_i915_private *i915, enum pipe pipe);
+void i915_enable_pipestat(struct drm_i915_private *i915, enum pipe pipe, u32 status_mask);
+void i915_disable_pipestat(struct drm_i915_private *i915, enum pipe pipe, u32 status_mask);
+void i915_enable_asle_pipestat(struct drm_i915_private *i915);
+void i9xx_pipestat_irq_reset(struct drm_i915_private *i915);
+
+void i9xx_pipestat_irq_ack(struct drm_i915_private *i915, u32 iir, u32 pipe_stats[I915_MAX_PIPES]);
+
+void i915_pipestat_irq_handler(struct drm_i915_private *i915, u32 iir, u32 pipe_stats[I915_MAX_PIPES]);
+void i965_pipestat_irq_handler(struct drm_i915_private *i915, u32 iir, u32 pipe_stats[I915_MAX_PIPES]);
+void valleyview_pipestat_irq_handler(struct drm_i915_private *i915, u32 pipe_stats[I915_MAX_PIPES]);
+void i8xx_pipestat_irq_handler(struct drm_i915_private *i915, u16 iir, u32 pipe_stats[I915_MAX_PIPES]);
+
+#endif /* __INTEL_DISPLAY_IRQ_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 41eabdf3e871..916009894d89 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -11,6 +11,7 @@
#include "intel_combo_phy_regs.h"
#include "intel_crt.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_power_well.h"
#include "intel_display_types.h"
#include "intel_dkl_phy.h"
diff --git a/drivers/gpu/drm/i915/display/intel_fifo_underrun.c b/drivers/gpu/drm/i915/display/intel_fifo_underrun.c
index e7f77a225739..09a7fa6c0c37 100644
--- a/drivers/gpu/drm/i915/display/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/display/intel_fifo_underrun.c
@@ -27,8 +27,8 @@
#include "i915_drv.h"
#include "i915_reg.h"
-#include "i915_irq.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_trace.h"
#include "intel_display_types.h"
#include "intel_fbc.h"
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
index 1d7ae49e073e..f95fa793fabb 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c
@@ -4,9 +4,9 @@
*/
#include "i915_drv.h"
-#include "i915_irq.h"
#include "i915_reg.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_types.h"
#include "intel_dp_aux.h"
#include "intel_gmbus.h"
diff --git a/drivers/gpu/drm/i915/display/intel_tv.c b/drivers/gpu/drm/i915/display/intel_tv.c
index 96fe4a280077..36b479b46b60 100644
--- a/drivers/gpu/drm/i915/display/intel_tv.c
+++ b/drivers/gpu/drm/i915/display/intel_tv.c
@@ -35,11 +35,11 @@
#include <drm/drm_edid.h>
#include "i915_drv.h"
-#include "i915_irq.h"
#include "i915_reg.h"
#include "intel_connector.h"
#include "intel_crtc.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_types.h"
#include "intel_dpll.h"
#include "intel_hotplug.h"
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index f6f760e59c9e..110401aab038 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -9,10 +9,10 @@
#include <drm/drm_fourcc.h>
#include "i915_drv.h"
-#include "i915_irq.h"
#include "i915_reg.h"
#include "intel_atomic_plane.h"
#include "intel_de.h"
+#include "intel_display_irq.h"
#include "intel_display_types.h"
#include "intel_fb.h"
#include "intel_fbc.h"
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 80968e49e2c3..e68a99205599 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -8,6 +8,7 @@
#include <drm/i915_drm.h>
#include "display/intel_display.h"
+#include "display/intel_display_irq.h"
#include "i915_drv.h"
#include "i915_irq.h"
#include "i915_reg.h"
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 61f53b283210..82fbabcdd7a5 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -33,18 +33,11 @@
#include <drm/drm_drv.h>
-#include "display/icl_dsi_regs.h"
-#include "display/intel_de.h"
-#include "display/intel_display_trace.h"
+#include "display/intel_display_irq.h"
#include "display/intel_display_types.h"
-#include "display/intel_dp_aux.h"
-#include "display/intel_fdi_regs.h"
-#include "display/intel_fifo_underrun.h"
-#include "display/intel_gmbus.h"
#include "display/intel_hotplug.h"
#include "display/intel_hotplug_irq.h"
#include "display/intel_lpe_audio.h"
-#include "display/intel_psr.h"
#include "display/intel_psr_regs.h"
#include "gt/intel_breadcrumbs.h"
@@ -85,14 +78,6 @@ static inline void pmu_irq_stats(struct drm_i915_private *i915,
WRITE_ONCE(i915->pmu.irq_count, i915->pmu.irq_count + 1);
}
-static void
-intel_handle_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
-{
- struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe);
-
- drm_crtc_handle_vblank(&crtc->base);
-}
-
void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
i915_reg_t iir, i915_reg_t ier)
{
@@ -125,7 +110,7 @@ static void gen2_irq_reset(struct intel_uncore *uncore)
/*
* We should clear IMR at preinstall/uninstall, and just check at postinstall.
*/
-static void gen3_assert_iir_is_zero(struct intel_uncore *uncore, i915_reg_t reg)
+void gen3_assert_iir_is_zero(struct intel_uncore *uncore, i915_reg_t reg)
{
u32 val = intel_uncore_read(uncore, reg);
@@ -179,268 +164,6 @@ static void gen2_irq_init(struct intel_uncore *uncore,
intel_uncore_posting_read16(uncore, GEN2_IMR);
}
-/**
- * ilk_update_display_irq - update DEIMR
- * @dev_priv: driver private
- * @interrupt_mask: mask of interrupt bits to update
- * @enabled_irq_mask: mask of interrupt bits to enable
- */
-void ilk_update_display_irq(struct drm_i915_private *dev_priv,
- u32 interrupt_mask, u32 enabled_irq_mask)
-{
- u32 new_val;
-
- lockdep_assert_held(&dev_priv->irq_lock);
- drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
-
- new_val = dev_priv->irq_mask;
- new_val &= ~interrupt_mask;
- new_val |= (~enabled_irq_mask & interrupt_mask);
-
- if (new_val != dev_priv->irq_mask &&
- !drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv))) {
- dev_priv->irq_mask = new_val;
- intel_uncore_write(&dev_priv->uncore, DEIMR, dev_priv->irq_mask);
- intel_uncore_posting_read(&dev_priv->uncore, DEIMR);
- }
-}
-
-void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits)
-{
- ilk_update_display_irq(i915, bits, bits);
-}
-
-void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits)
-{
- ilk_update_display_irq(i915, bits, 0);
-}
-
-/**
- * bdw_update_port_irq - update DE port interrupt
- * @dev_priv: driver private
- * @interrupt_mask: mask of interrupt bits to update
- * @enabled_irq_mask: mask of interrupt bits to enable
- */
-void bdw_update_port_irq(struct drm_i915_private *dev_priv,
- u32 interrupt_mask, u32 enabled_irq_mask)
-{
- u32 new_val;
- u32 old_val;
-
- lockdep_assert_held(&dev_priv->irq_lock);
-
- drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
-
- if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
- return;
-
- old_val = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PORT_IMR);
-
- new_val = old_val;
- new_val &= ~interrupt_mask;
- new_val |= (~enabled_irq_mask & interrupt_mask);
-
- if (new_val != old_val) {
- intel_uncore_write(&dev_priv->uncore, GEN8_DE_PORT_IMR, new_val);
- intel_uncore_posting_read(&dev_priv->uncore, GEN8_DE_PORT_IMR);
- }
-}
-
-/**
- * bdw_update_pipe_irq - update DE pipe interrupt
- * @dev_priv: driver private
- * @pipe: pipe whose interrupt to update
- * @interrupt_mask: mask of interrupt bits to update
- * @enabled_irq_mask: mask of interrupt bits to enable
- */
-static void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
- enum pipe pipe, u32 interrupt_mask,
- u32 enabled_irq_mask)
-{
- u32 new_val;
-
- lockdep_assert_held(&dev_priv->irq_lock);
-
- drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
-
- if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
- return;
-
- new_val = dev_priv->de_irq_mask[pipe];
- new_val &= ~interrupt_mask;
- new_val |= (~enabled_irq_mask & interrupt_mask);
-
- if (new_val != dev_priv->de_irq_mask[pipe]) {
- dev_priv->de_irq_mask[pipe] = new_val;
- intel_uncore_write(&dev_priv->uncore, GEN8_DE_PIPE_IMR(pipe), dev_priv->de_irq_mask[pipe]);
- intel_uncore_posting_read(&dev_priv->uncore, GEN8_DE_PIPE_IMR(pipe));
- }
-}
-
-void bdw_enable_pipe_irq(struct drm_i915_private *i915,
- enum pipe pipe, u32 bits)
-{
- bdw_update_pipe_irq(i915, pipe, bits, bits);
-}
-
-void bdw_disable_pipe_irq(struct drm_i915_private *i915,
- enum pipe pipe, u32 bits)
-{
- bdw_update_pipe_irq(i915, pipe, bits, 0);
-}
-
-/**
- * ibx_display_interrupt_update - update SDEIMR
- * @dev_priv: driver private
- * @interrupt_mask: mask of interrupt bits to update
- * @enabled_irq_mask: mask of interrupt bits to enable
- */
-void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
- u32 interrupt_mask,
- u32 enabled_irq_mask)
-{
- u32 sdeimr = intel_uncore_read(&dev_priv->uncore, SDEIMR);
- sdeimr &= ~interrupt_mask;
- sdeimr |= (~enabled_irq_mask & interrupt_mask);
-
- drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask);
-
- lockdep_assert_held(&dev_priv->irq_lock);
-
- if (drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv)))
- return;
-
- intel_uncore_write(&dev_priv->uncore, SDEIMR, sdeimr);
- intel_uncore_posting_read(&dev_priv->uncore, SDEIMR);
-}
-
-void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits)
-{
- ibx_display_interrupt_update(i915, bits, bits);
-}
-
-void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits)
-{
- ibx_display_interrupt_update(i915, bits, 0);
-}
-
-u32 i915_pipestat_enable_mask(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- u32 status_mask = dev_priv->pipestat_irq_mask[pipe];
- u32 enable_mask = status_mask << 16;
-
- lockdep_assert_held(&dev_priv->irq_lock);
-
- if (DISPLAY_VER(dev_priv) < 5)
- goto out;
-
- /*
- * On pipe A we don't support the PSR interrupt yet,
- * on pipe B and C the same bit MBZ.
- */
- if (drm_WARN_ON_ONCE(&dev_priv->drm,
- status_mask & PIPE_A_PSR_STATUS_VLV))
- return 0;
- /*
- * On pipe B and C we don't support the PSR interrupt yet, on pipe
- * A the same bit is for perf counters which we don't use either.
- */
- if (drm_WARN_ON_ONCE(&dev_priv->drm,
- status_mask & PIPE_B_PSR_STATUS_VLV))
- return 0;
-
- enable_mask &= ~(PIPE_FIFO_UNDERRUN_STATUS |
- SPRITE0_FLIP_DONE_INT_EN_VLV |
- SPRITE1_FLIP_DONE_INT_EN_VLV);
- if (status_mask & SPRITE0_FLIP_DONE_INT_STATUS_VLV)
- enable_mask |= SPRITE0_FLIP_DONE_INT_EN_VLV;
- if (status_mask & SPRITE1_FLIP_DONE_INT_STATUS_VLV)
- enable_mask |= SPRITE1_FLIP_DONE_INT_EN_VLV;
-
-out:
- drm_WARN_ONCE(&dev_priv->drm,
- enable_mask & ~PIPESTAT_INT_ENABLE_MASK ||
- status_mask & ~PIPESTAT_INT_STATUS_MASK,
- "pipe %c: enable_mask=0x%x, status_mask=0x%x\n",
- pipe_name(pipe), enable_mask, status_mask);
-
- return enable_mask;
-}
-
-void i915_enable_pipestat(struct drm_i915_private *dev_priv,
- enum pipe pipe, u32 status_mask)
-{
- i915_reg_t reg = PIPESTAT(pipe);
- u32 enable_mask;
-
- drm_WARN_ONCE(&dev_priv->drm, status_mask & ~PIPESTAT_INT_STATUS_MASK,
- "pipe %c: status_mask=0x%x\n",
- pipe_name(pipe), status_mask);
-
- lockdep_assert_held(&dev_priv->irq_lock);
- drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv));
-
- if ((dev_priv->pipestat_irq_mask[pipe] & status_mask) == status_mask)
- return;
-
- dev_priv->pipestat_irq_mask[pipe] |= status_mask;
- enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
-
- intel_uncore_write(&dev_priv->uncore, reg, enable_mask | status_mask);
- intel_uncore_posting_read(&dev_priv->uncore, reg);
-}
-
-void i915_disable_pipestat(struct drm_i915_private *dev_priv,
- enum pipe pipe, u32 status_mask)
-{
- i915_reg_t reg = PIPESTAT(pipe);
- u32 enable_mask;
-
- drm_WARN_ONCE(&dev_priv->drm, status_mask & ~PIPESTAT_INT_STATUS_MASK,
- "pipe %c: status_mask=0x%x\n",
- pipe_name(pipe), status_mask);
-
- lockdep_assert_held(&dev_priv->irq_lock);
- drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv));
-
- if ((dev_priv->pipestat_irq_mask[pipe] & status_mask) == 0)
- return;
-
- dev_priv->pipestat_irq_mask[pipe] &= ~status_mask;
- enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
-
- intel_uncore_write(&dev_priv->uncore, reg, enable_mask | status_mask);
- intel_uncore_posting_read(&dev_priv->uncore, reg);
-}
-
-static bool i915_has_asle(struct drm_i915_private *dev_priv)
-{
- if (!dev_priv->display.opregion.asle)
- return false;
-
- return IS_PINEVIEW(dev_priv) || IS_MOBILE(dev_priv);
-}
-
-/**
- * i915_enable_asle_pipestat - enable ASLE pipestat for OpRegion
- * @dev_priv: i915 device private
- */
-static void i915_enable_asle_pipestat(struct drm_i915_private *dev_priv)
-{
- if (!i915_has_asle(dev_priv))
- return;
-
- spin_lock_irq(&dev_priv->irq_lock);
-
- i915_enable_pipestat(dev_priv, PIPE_B, PIPE_LEGACY_BLC_EVENT_STATUS);
- if (DISPLAY_VER(dev_priv) >= 4)
- i915_enable_pipestat(dev_priv, PIPE_A,
- PIPE_LEGACY_BLC_EVENT_STATUS);
-
- spin_unlock_irq(&dev_priv->irq_lock);
-}
-
/**
* ivb_parity_work - Workqueue called when a parity error interrupt
* occurred.
@@ -525,278 +248,6 @@ static void ivb_parity_work(struct work_struct *work)
mutex_unlock(&dev_priv->drm.struct_mutex);
}
-#if defined(CONFIG_DEBUG_FS)
-static void display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
- enum pipe pipe,
- u32 crc0, u32 crc1,
- u32 crc2, u32 crc3,
- u32 crc4)
-{
- struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe);
- struct intel_pipe_crc *pipe_crc = &crtc->pipe_crc;
- u32 crcs[5] = { crc0, crc1, crc2, crc3, crc4 };
-
- trace_intel_pipe_crc(crtc, crcs);
-
- spin_lock(&pipe_crc->lock);
- /*
- * For some not yet identified reason, the first CRC is
- * bonkers. So let's just wait for the next vblank and read
- * out the buggy result.
- *
- * On GEN8+ sometimes the second CRC is bonkers as well, so
- * don't trust that one either.
- */
- if (pipe_crc->skipped <= 0 ||
- (DISPLAY_VER(dev_priv) >= 8 && pipe_crc->skipped == 1)) {
- pipe_crc->skipped++;
- spin_unlock(&pipe_crc->lock);
- return;
- }
- spin_unlock(&pipe_crc->lock);
-
- drm_crtc_add_crc_entry(&crtc->base, true,
- drm_crtc_accurate_vblank_count(&crtc->base),
- crcs);
-}
-#else
-static inline void
-display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
- enum pipe pipe,
- u32 crc0, u32 crc1,
- u32 crc2, u32 crc3,
- u32 crc4) {}
-#endif
-
-static void flip_done_handler(struct drm_i915_private *i915,
- enum pipe pipe)
-{
- struct intel_crtc *crtc = intel_crtc_for_pipe(i915, pipe);
- struct drm_crtc_state *crtc_state = crtc->base.state;
- struct drm_pending_vblank_event *e = crtc_state->event;
- struct drm_device *dev = &i915->drm;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev->event_lock, irqflags);
-
- crtc_state->event = NULL;
-
- drm_crtc_send_vblank_event(&crtc->base, e);
-
- spin_unlock_irqrestore(&dev->event_lock, irqflags);
-}
-
-static void hsw_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- display_pipe_crc_irq_handler(dev_priv, pipe,
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_1_IVB(pipe)),
- 0, 0, 0, 0);
-}
-
-static void ivb_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- display_pipe_crc_irq_handler(dev_priv, pipe,
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_1_IVB(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_2_IVB(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_3_IVB(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_4_IVB(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_5_IVB(pipe)));
-}
-
-static void i9xx_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
- enum pipe pipe)
-{
- u32 res1, res2;
-
- if (DISPLAY_VER(dev_priv) >= 3)
- res1 = intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RES1_I915(pipe));
- else
- res1 = 0;
-
- if (DISPLAY_VER(dev_priv) >= 5 || IS_G4X(dev_priv))
- res2 = intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RES2_G4X(pipe));
- else
- res2 = 0;
-
- display_pipe_crc_irq_handler(dev_priv, pipe,
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_RED(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_GREEN(pipe)),
- intel_uncore_read(&dev_priv->uncore, PIPE_CRC_RES_BLUE(pipe)),
- res1, res2);
-}
-
-static void i9xx_pipestat_irq_reset(struct drm_i915_private *dev_priv)
-{
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- intel_uncore_write(&dev_priv->uncore, PIPESTAT(pipe),
- PIPESTAT_INT_STATUS_MASK |
- PIPE_FIFO_UNDERRUN_STATUS);
-
- dev_priv->pipestat_irq_mask[pipe] = 0;
- }
-}
-
-static void i9xx_pipestat_irq_ack(struct drm_i915_private *dev_priv,
- u32 iir, u32 pipe_stats[I915_MAX_PIPES])
-{
- enum pipe pipe;
-
- spin_lock(&dev_priv->irq_lock);
-
- if (!dev_priv->display_irqs_enabled) {
- spin_unlock(&dev_priv->irq_lock);
- return;
- }
-
- for_each_pipe(dev_priv, pipe) {
- i915_reg_t reg;
- u32 status_mask, enable_mask, iir_bit = 0;
-
- /*
- * PIPESTAT bits get signalled even when the interrupt is
- * disabled with the mask bits, and some of the status bits do
- * not generate interrupts at all (like the underrun bit). Hence
- * we need to be careful that we only handle what we want to
- * handle.
- */
-
- /* fifo underruns are filterered in the underrun handler. */
- status_mask = PIPE_FIFO_UNDERRUN_STATUS;
-
- switch (pipe) {
- default:
- case PIPE_A:
- iir_bit = I915_DISPLAY_PIPE_A_EVENT_INTERRUPT;
- break;
- case PIPE_B:
- iir_bit = I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
- break;
- case PIPE_C:
- iir_bit = I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
- break;
- }
- if (iir & iir_bit)
- status_mask |= dev_priv->pipestat_irq_mask[pipe];
-
- if (!status_mask)
- continue;
-
- reg = PIPESTAT(pipe);
- pipe_stats[pipe] = intel_uncore_read(&dev_priv->uncore, reg) & status_mask;
- enable_mask = i915_pipestat_enable_mask(dev_priv, pipe);
-
- /*
- * Clear the PIPE*STAT regs before the IIR
- *
- * Toggle the enable bits to make sure we get an
- * edge in the ISR pipe event bit if we don't clear
- * all the enabled status bits. Otherwise the edge
- * triggered IIR on i965/g4x wouldn't notice that
- * an interrupt is still pending.
- */
- if (pipe_stats[pipe]) {
- intel_uncore_write(&dev_priv->uncore, reg, pipe_stats[pipe]);
- intel_uncore_write(&dev_priv->uncore, reg, enable_mask);
- }
- }
- spin_unlock(&dev_priv->irq_lock);
-}
-
-static void i8xx_pipestat_irq_handler(struct drm_i915_private *dev_priv,
- u16 iir, u32 pipe_stats[I915_MAX_PIPES])
-{
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS)
- intel_handle_vblank(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
- i9xx_pipe_crc_irq_handler(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
- }
-}
-
-static void i915_pipestat_irq_handler(struct drm_i915_private *dev_priv,
- u32 iir, u32 pipe_stats[I915_MAX_PIPES])
-{
- bool blc_event = false;
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- if (pipe_stats[pipe] & PIPE_VBLANK_INTERRUPT_STATUS)
- intel_handle_vblank(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS)
- blc_event = true;
-
- if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
- i9xx_pipe_crc_irq_handler(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
- }
-
- if (blc_event || (iir & I915_ASLE_INTERRUPT))
- intel_opregion_asle_intr(dev_priv);
-}
-
-static void i965_pipestat_irq_handler(struct drm_i915_private *dev_priv,
- u32 iir, u32 pipe_stats[I915_MAX_PIPES])
-{
- bool blc_event = false;
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS)
- intel_handle_vblank(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_LEGACY_BLC_EVENT_STATUS)
- blc_event = true;
-
- if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
- i9xx_pipe_crc_irq_handler(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
- }
-
- if (blc_event || (iir & I915_ASLE_INTERRUPT))
- intel_opregion_asle_intr(dev_priv);
-
- if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS)
- intel_gmbus_irq_handler(dev_priv);
-}
-
-static void valleyview_pipestat_irq_handler(struct drm_i915_private *dev_priv,
- u32 pipe_stats[I915_MAX_PIPES])
-{
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS)
- intel_handle_vblank(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PLANE_FLIP_DONE_INT_STATUS_VLV)
- flip_done_handler(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
- i9xx_pipe_crc_irq_handler(dev_priv, pipe);
-
- if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
- }
-
- if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS)
- intel_gmbus_irq_handler(dev_priv);
-}
-
static irqreturn_t valleyview_irq_handler(int irq, void *arg)
{
struct drm_i915_private *dev_priv = arg;
@@ -961,217 +412,6 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
return ret;
}
-static void ibx_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
-{
- enum pipe pipe;
- u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK;
-
- ibx_hpd_irq_handler(dev_priv, hotplug_trigger);
-
- if (pch_iir & SDE_AUDIO_POWER_MASK) {
- int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK) >>
- SDE_AUDIO_POWER_SHIFT);
- drm_dbg(&dev_priv->drm, "PCH audio power change on port %d\n",
- port_name(port));
- }
-
- if (pch_iir & SDE_AUX_MASK)
- intel_dp_aux_irq_handler(dev_priv);
-
- if (pch_iir & SDE_GMBUS)
- intel_gmbus_irq_handler(dev_priv);
-
- if (pch_iir & SDE_AUDIO_HDCP_MASK)
- drm_dbg(&dev_priv->drm, "PCH HDCP audio interrupt\n");
-
- if (pch_iir & SDE_AUDIO_TRANS_MASK)
- drm_dbg(&dev_priv->drm, "PCH transcoder audio interrupt\n");
-
- if (pch_iir & SDE_POISON)
- drm_err(&dev_priv->drm, "PCH poison interrupt\n");
-
- if (pch_iir & SDE_FDI_MASK) {
- for_each_pipe(dev_priv, pipe)
- drm_dbg(&dev_priv->drm, " pipe %c FDI IIR: 0x%08x\n",
- pipe_name(pipe),
- intel_uncore_read(&dev_priv->uncore, FDI_RX_IIR(pipe)));
- }
-
- if (pch_iir & (SDE_TRANSB_CRC_DONE | SDE_TRANSA_CRC_DONE))
- drm_dbg(&dev_priv->drm, "PCH transcoder CRC done interrupt\n");
-
- if (pch_iir & (SDE_TRANSB_CRC_ERR | SDE_TRANSA_CRC_ERR))
- drm_dbg(&dev_priv->drm,
- "PCH transcoder CRC error interrupt\n");
-
- if (pch_iir & SDE_TRANSA_FIFO_UNDER)
- intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);
-
- if (pch_iir & SDE_TRANSB_FIFO_UNDER)
- intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);
-}
-
-static void ivb_err_int_handler(struct drm_i915_private *dev_priv)
-{
- u32 err_int = intel_uncore_read(&dev_priv->uncore, GEN7_ERR_INT);
- enum pipe pipe;
-
- if (err_int & ERR_INT_POISON)
- drm_err(&dev_priv->drm, "Poison interrupt\n");
-
- for_each_pipe(dev_priv, pipe) {
- if (err_int & ERR_INT_FIFO_UNDERRUN(pipe))
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
-
- if (err_int & ERR_INT_PIPE_CRC_DONE(pipe)) {
- if (IS_IVYBRIDGE(dev_priv))
- ivb_pipe_crc_irq_handler(dev_priv, pipe);
- else
- hsw_pipe_crc_irq_handler(dev_priv, pipe);
- }
- }
-
- intel_uncore_write(&dev_priv->uncore, GEN7_ERR_INT, err_int);
-}
-
-static void cpt_serr_int_handler(struct drm_i915_private *dev_priv)
-{
- u32 serr_int = intel_uncore_read(&dev_priv->uncore, SERR_INT);
- enum pipe pipe;
-
- if (serr_int & SERR_INT_POISON)
- drm_err(&dev_priv->drm, "PCH poison interrupt\n");
-
- for_each_pipe(dev_priv, pipe)
- if (serr_int & SERR_INT_TRANS_FIFO_UNDERRUN(pipe))
- intel_pch_fifo_underrun_irq_handler(dev_priv, pipe);
-
- intel_uncore_write(&dev_priv->uncore, SERR_INT, serr_int);
-}
-
-static void cpt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
-{
- enum pipe pipe;
- u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT;
-
- ibx_hpd_irq_handler(dev_priv, hotplug_trigger);
-
- if (pch_iir & SDE_AUDIO_POWER_MASK_CPT) {
- int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK_CPT) >>
- SDE_AUDIO_POWER_SHIFT_CPT);
- drm_dbg(&dev_priv->drm, "PCH audio power change on port %c\n",
- port_name(port));
- }
-
- if (pch_iir & SDE_AUX_MASK_CPT)
- intel_dp_aux_irq_handler(dev_priv);
-
- if (pch_iir & SDE_GMBUS_CPT)
- intel_gmbus_irq_handler(dev_priv);
-
- if (pch_iir & SDE_AUDIO_CP_REQ_CPT)
- drm_dbg(&dev_priv->drm, "Audio CP request interrupt\n");
-
- if (pch_iir & SDE_AUDIO_CP_CHG_CPT)
- drm_dbg(&dev_priv->drm, "Audio CP change interrupt\n");
-
- if (pch_iir & SDE_FDI_MASK_CPT) {
- for_each_pipe(dev_priv, pipe)
- drm_dbg(&dev_priv->drm, " pipe %c FDI IIR: 0x%08x\n",
- pipe_name(pipe),
- intel_uncore_read(&dev_priv->uncore, FDI_RX_IIR(pipe)));
- }
-
- if (pch_iir & SDE_ERROR_CPT)
- cpt_serr_int_handler(dev_priv);
-}
-
-static void ilk_display_irq_handler(struct drm_i915_private *dev_priv,
- u32 de_iir)
-{
- enum pipe pipe;
- u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG;
-
- if (hotplug_trigger)
- ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
-
- if (de_iir & DE_AUX_CHANNEL_A)
- intel_dp_aux_irq_handler(dev_priv);
-
- if (de_iir & DE_GSE)
- intel_opregion_asle_intr(dev_priv);
-
- if (de_iir & DE_POISON)
- drm_err(&dev_priv->drm, "Poison interrupt\n");
-
- for_each_pipe(dev_priv, pipe) {
- if (de_iir & DE_PIPE_VBLANK(pipe))
- intel_handle_vblank(dev_priv, pipe);
-
- if (de_iir & DE_PLANE_FLIP_DONE(pipe))
- flip_done_handler(dev_priv, pipe);
-
- if (de_iir & DE_PIPE_FIFO_UNDERRUN(pipe))
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
-
- if (de_iir & DE_PIPE_CRC_DONE(pipe))
- i9xx_pipe_crc_irq_handler(dev_priv, pipe);
- }
-
- /* check event from PCH */
- if (de_iir & DE_PCH_EVENT) {
- u32 pch_iir = intel_uncore_read(&dev_priv->uncore, SDEIIR);
-
- if (HAS_PCH_CPT(dev_priv))
- cpt_irq_handler(dev_priv, pch_iir);
- else
- ibx_irq_handler(dev_priv, pch_iir);
-
- /* should clear PCH hotplug event before clear CPU irq */
- intel_uncore_write(&dev_priv->uncore, SDEIIR, pch_iir);
- }
-
- if (DISPLAY_VER(dev_priv) == 5 && de_iir & DE_PCU_EVENT)
- gen5_rps_irq_handler(&to_gt(dev_priv)->rps);
-}
-
-static void ivb_display_irq_handler(struct drm_i915_private *dev_priv,
- u32 de_iir)
-{
- enum pipe pipe;
- u32 hotplug_trigger = de_iir & DE_DP_A_HOTPLUG_IVB;
-
- if (hotplug_trigger)
- ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
-
- if (de_iir & DE_ERR_INT_IVB)
- ivb_err_int_handler(dev_priv);
-
- if (de_iir & DE_AUX_CHANNEL_A_IVB)
- intel_dp_aux_irq_handler(dev_priv);
-
- if (de_iir & DE_GSE_IVB)
- intel_opregion_asle_intr(dev_priv);
-
- for_each_pipe(dev_priv, pipe) {
- if (de_iir & DE_PIPE_VBLANK_IVB(pipe))
- intel_handle_vblank(dev_priv, pipe);
-
- if (de_iir & DE_PLANE_FLIP_DONE_IVB(pipe))
- flip_done_handler(dev_priv, pipe);
- }
-
- /* check event from PCH */
- if (!HAS_PCH_NOP(dev_priv) && (de_iir & DE_PCH_EVENT_IVB)) {
- u32 pch_iir = intel_uncore_read(&dev_priv->uncore, SDEIIR);
-
- cpt_irq_handler(dev_priv, pch_iir);
-
- /* clear PCH hotplug event before clear CPU irq */
- intel_uncore_write(&dev_priv->uncore, SDEIIR, pch_iir);
- }
-}
-
/*
* To handle irqs with the minimum potential races with fresh interrupts, we:
* 1 - Disable Master Interrupt Control.
@@ -1246,353 +486,8 @@ static irqreturn_t ilk_irq_handler(int irq, void *arg)
/* IRQs are synced during runtime_suspend, we don't require a wakeref */
enable_rpm_wakeref_asserts(&i915->runtime_pm);
-
- return ret;
-}
-
-static u32 gen8_de_port_aux_mask(struct drm_i915_private *dev_priv)
-{
- u32 mask;
-
- if (DISPLAY_VER(dev_priv) >= 14)
- return TGL_DE_PORT_AUX_DDIA |
- TGL_DE_PORT_AUX_DDIB;
- else if (DISPLAY_VER(dev_priv) >= 13)
- return TGL_DE_PORT_AUX_DDIA |
- TGL_DE_PORT_AUX_DDIB |
- TGL_DE_PORT_AUX_DDIC |
- XELPD_DE_PORT_AUX_DDID |
- XELPD_DE_PORT_AUX_DDIE |
- TGL_DE_PORT_AUX_USBC1 |
- TGL_DE_PORT_AUX_USBC2 |
- TGL_DE_PORT_AUX_USBC3 |
- TGL_DE_PORT_AUX_USBC4;
- else if (DISPLAY_VER(dev_priv) >= 12)
- return TGL_DE_PORT_AUX_DDIA |
- TGL_DE_PORT_AUX_DDIB |
- TGL_DE_PORT_AUX_DDIC |
- TGL_DE_PORT_AUX_USBC1 |
- TGL_DE_PORT_AUX_USBC2 |
- TGL_DE_PORT_AUX_USBC3 |
- TGL_DE_PORT_AUX_USBC4 |
- TGL_DE_PORT_AUX_USBC5 |
- TGL_DE_PORT_AUX_USBC6;
-
-
- mask = GEN8_AUX_CHANNEL_A;
- if (DISPLAY_VER(dev_priv) >= 9)
- mask |= GEN9_AUX_CHANNEL_B |
- GEN9_AUX_CHANNEL_C |
- GEN9_AUX_CHANNEL_D;
-
- if (DISPLAY_VER(dev_priv) == 11) {
- mask |= ICL_AUX_CHANNEL_F;
- mask |= ICL_AUX_CHANNEL_E;
- }
-
- return mask;
-}
-
-static u32 gen8_de_pipe_fault_mask(struct drm_i915_private *dev_priv)
-{
- if (DISPLAY_VER(dev_priv) >= 13 || HAS_D12_PLANE_MINIMIZATION(dev_priv))
- return RKL_DE_PIPE_IRQ_FAULT_ERRORS;
- else if (DISPLAY_VER(dev_priv) >= 11)
- return GEN11_DE_PIPE_IRQ_FAULT_ERRORS;
- else if (DISPLAY_VER(dev_priv) >= 9)
- return GEN9_DE_PIPE_IRQ_FAULT_ERRORS;
- else
- return GEN8_DE_PIPE_IRQ_FAULT_ERRORS;
-}
-
-static void
-gen8_de_misc_irq_handler(struct drm_i915_private *dev_priv, u32 iir)
-{
- bool found = false;
-
- if (iir & GEN8_DE_MISC_GSE) {
- intel_opregion_asle_intr(dev_priv);
- found = true;
- }
-
- if (iir & GEN8_DE_EDP_PSR) {
- struct intel_encoder *encoder;
- u32 psr_iir;
- i915_reg_t iir_reg;
-
- for_each_intel_encoder_with_psr(&dev_priv->drm, encoder) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- if (DISPLAY_VER(dev_priv) >= 12)
- iir_reg = TRANS_PSR_IIR(intel_dp->psr.transcoder);
- else
- iir_reg = EDP_PSR_IIR;
-
- psr_iir = intel_uncore_rmw(&dev_priv->uncore, iir_reg, 0, 0);
-
- if (psr_iir)
- found = true;
-
- intel_psr_irq_handler(intel_dp, psr_iir);
-
- /* prior GEN12 only have one EDP PSR */
- if (DISPLAY_VER(dev_priv) < 12)
- break;
- }
- }
-
- if (!found)
- drm_err(&dev_priv->drm, "Unexpected DE Misc interrupt\n");
-}
-
-static void gen11_dsi_te_interrupt_handler(struct drm_i915_private *dev_priv,
- u32 te_trigger)
-{
- enum pipe pipe = INVALID_PIPE;
- enum transcoder dsi_trans;
- enum port port;
- u32 val, tmp;
-
- /*
- * Incase of dual link, TE comes from DSI_1
- * this is to check if dual link is enabled
- */
- val = intel_uncore_read(&dev_priv->uncore, TRANS_DDI_FUNC_CTL2(TRANSCODER_DSI_0));
- val &= PORT_SYNC_MODE_ENABLE;
-
- /*
- * if dual link is enabled, then read DSI_0
- * transcoder registers
- */
- port = ((te_trigger & DSI1_TE && val) || (te_trigger & DSI0_TE)) ?
- PORT_A : PORT_B;
- dsi_trans = (port == PORT_A) ? TRANSCODER_DSI_0 : TRANSCODER_DSI_1;
-
- /* Check if DSI configured in command mode */
- val = intel_uncore_read(&dev_priv->uncore, DSI_TRANS_FUNC_CONF(dsi_trans));
- val = val & OP_MODE_MASK;
-
- if (val != CMD_MODE_NO_GATE && val != CMD_MODE_TE_GATE) {
- drm_err(&dev_priv->drm, "DSI trancoder not configured in command mode\n");
- return;
- }
-
- /* Get PIPE for handling VBLANK event */
- val = intel_uncore_read(&dev_priv->uncore, TRANS_DDI_FUNC_CTL(dsi_trans));
- switch (val & TRANS_DDI_EDP_INPUT_MASK) {
- case TRANS_DDI_EDP_INPUT_A_ON:
- pipe = PIPE_A;
- break;
- case TRANS_DDI_EDP_INPUT_B_ONOFF:
- pipe = PIPE_B;
- break;
- case TRANS_DDI_EDP_INPUT_C_ONOFF:
- pipe = PIPE_C;
- break;
- default:
- drm_err(&dev_priv->drm, "Invalid PIPE\n");
- return;
- }
-
- intel_handle_vblank(dev_priv, pipe);
-
- /* clear TE in dsi IIR */
- port = (te_trigger & DSI1_TE) ? PORT_B : PORT_A;
- tmp = intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_IDENT_REG(port), 0, 0);
-}
-
-static u32 gen8_de_pipe_flip_done_mask(struct drm_i915_private *i915)
-{
- if (DISPLAY_VER(i915) >= 9)
- return GEN9_PIPE_PLANE1_FLIP_DONE;
- else
- return GEN8_PIPE_PRIMARY_FLIP_DONE;
-}
-
-u32 gen8_de_pipe_underrun_mask(struct drm_i915_private *dev_priv)
-{
- u32 mask = GEN8_PIPE_FIFO_UNDERRUN;
-
- if (DISPLAY_VER(dev_priv) >= 13)
- mask |= XELPD_PIPE_SOFT_UNDERRUN |
- XELPD_PIPE_HARD_UNDERRUN;
-
- 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 void gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
-{
- u32 iir;
- enum pipe pipe;
-
- drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_DISPLAY(dev_priv));
-
- if (master_ctl & GEN8_DE_MISC_IRQ) {
- iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_MISC_IIR);
- if (iir) {
- intel_uncore_write(&dev_priv->uncore, GEN8_DE_MISC_IIR, iir);
- gen8_de_misc_irq_handler(dev_priv, iir);
- } else {
- drm_err_ratelimited(&dev_priv->drm,
- "The master control interrupt lied (DE MISC)!\n");
- }
- }
-
- if (DISPLAY_VER(dev_priv) >= 11 && (master_ctl & GEN11_DE_HPD_IRQ)) {
- iir = intel_uncore_read(&dev_priv->uncore, GEN11_DE_HPD_IIR);
- if (iir) {
- intel_uncore_write(&dev_priv->uncore, GEN11_DE_HPD_IIR, iir);
- gen11_hpd_irq_handler(dev_priv, iir);
- } else {
- drm_err_ratelimited(&dev_priv->drm,
- "The master control interrupt lied, (DE HPD)!\n");
- }
- }
-
- if (master_ctl & GEN8_DE_PORT_IRQ) {
- iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PORT_IIR);
- if (iir) {
- bool found = false;
-
- intel_uncore_write(&dev_priv->uncore, GEN8_DE_PORT_IIR, iir);
-
- if (iir & gen8_de_port_aux_mask(dev_priv)) {
- intel_dp_aux_irq_handler(dev_priv);
- found = true;
- }
-
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) {
- u32 hotplug_trigger = iir & BXT_DE_PORT_HOTPLUG_MASK;
-
- if (hotplug_trigger) {
- bxt_hpd_irq_handler(dev_priv, hotplug_trigger);
- found = true;
- }
- } else if (IS_BROADWELL(dev_priv)) {
- u32 hotplug_trigger = iir & BDW_DE_PORT_HOTPLUG_MASK;
-
- if (hotplug_trigger) {
- ilk_hpd_irq_handler(dev_priv, hotplug_trigger);
- found = true;
- }
- }
-
- if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) &&
- (iir & BXT_DE_PORT_GMBUS)) {
- intel_gmbus_irq_handler(dev_priv);
- found = true;
- }
-
- if (DISPLAY_VER(dev_priv) >= 11) {
- u32 te_trigger = iir & (DSI0_TE | DSI1_TE);
-
- if (te_trigger) {
- gen11_dsi_te_interrupt_handler(dev_priv, te_trigger);
- found = true;
- }
- }
-
- if (!found)
- drm_err_ratelimited(&dev_priv->drm,
- "Unexpected DE Port interrupt\n");
- }
- else
- drm_err_ratelimited(&dev_priv->drm,
- "The master control interrupt lied (DE PORT)!\n");
- }
-
- for_each_pipe(dev_priv, pipe) {
- u32 fault_errors;
-
- if (!(master_ctl & GEN8_DE_PIPE_IRQ(pipe)))
- continue;
-
- iir = intel_uncore_read(&dev_priv->uncore, GEN8_DE_PIPE_IIR(pipe));
- if (!iir) {
- drm_err_ratelimited(&dev_priv->drm,
- "The master control interrupt lied (DE PIPE)!\n");
- continue;
- }
-
- intel_uncore_write(&dev_priv->uncore, GEN8_DE_PIPE_IIR(pipe), iir);
-
- if (iir & GEN8_PIPE_VBLANK)
- intel_handle_vblank(dev_priv, pipe);
-
- if (iir & gen8_de_pipe_flip_done_mask(dev_priv))
- flip_done_handler(dev_priv, pipe);
-
- if (iir & GEN8_PIPE_CDCLK_CRC_DONE)
- hsw_pipe_crc_irq_handler(dev_priv, pipe);
-
- if (iir & gen8_de_pipe_underrun_mask(dev_priv))
- intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
-
- fault_errors = iir & gen8_de_pipe_fault_mask(dev_priv);
- if (fault_errors)
- drm_err_ratelimited(&dev_priv->drm,
- "Fault errors on pipe %c: 0x%08x\n",
- pipe_name(pipe),
- fault_errors);
- }
-
- 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.
- */
- gen8_read_and_ack_pch_irqs(dev_priv, &iir, &pica_iir);
- if (iir) {
- 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)
- spt_irq_handler(dev_priv, iir);
- else
- cpt_irq_handler(dev_priv, iir);
- } else {
- /*
- * Like on previous PCH there seems to be something
- * fishy going on with forwarding PCH interrupts.
- */
- drm_dbg(&dev_priv->drm,
- "The master control interrupt lied (SDE)!\n");
- }
- }
+
+ return ret;
}
static inline u32 gen8_master_intr_disable(void __iomem * const regs)
@@ -1645,29 +540,6 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
-static u32
-gen11_gu_misc_irq_ack(struct drm_i915_private *i915, const u32 master_ctl)
-{
- void __iomem * const regs = i915->uncore.regs;
- u32 iir;
-
- if (!(master_ctl & GEN11_GU_MISC_IRQ))
- return 0;
-
- iir = raw_reg_read(regs, GEN11_GU_MISC_IIR);
- if (likely(iir))
- raw_reg_write(regs, GEN11_GU_MISC_IIR, iir);
-
- return iir;
-}
-
-static void
-gen11_gu_misc_irq_handler(struct drm_i915_private *i915, const u32 iir)
-{
- if (iir & GEN11_GU_MISC_GSE)
- intel_opregion_asle_intr(i915);
-}
-
static inline u32 gen11_master_intr_disable(void __iomem * const regs)
{
raw_reg_write(regs, GEN11_GFX_MSTR_IRQ, 0);
@@ -1686,25 +558,6 @@ static inline void gen11_master_intr_enable(void __iomem * const regs)
raw_reg_write(regs, GEN11_GFX_MSTR_IRQ, GEN11_MASTER_IRQ);
}
-static void
-gen11_display_irq_handler(struct drm_i915_private *i915)
-{
- void __iomem * const regs = i915->uncore.regs;
- const u32 disp_ctl = raw_reg_read(regs, GEN11_DISPLAY_INT_CTL);
-
- disable_rpm_wakeref_asserts(&i915->runtime_pm);
- /*
- * GEN11_DISPLAY_INT_CTL has same format as GEN8_MASTER_IRQ
- * for the display related bits.
- */
- raw_reg_write(regs, GEN11_DISPLAY_INT_CTL, 0x0);
- gen8_de_irq_handler(i915, disp_ctl);
- raw_reg_write(regs, GEN11_DISPLAY_INT_CTL,
- GEN11_DISPLAY_IRQ_ENABLE);
-
- enable_rpm_wakeref_asserts(&i915->runtime_pm);
-}
-
static irqreturn_t gen11_irq_handler(int irq, void *arg)
{
struct drm_i915_private *i915 = arg;
@@ -1806,184 +659,6 @@ static irqreturn_t dg1_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
-/* Called from drm generic code, passed 'crtc' which
- * we use as a pipe index
- */
-int i8xx_enable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- i915_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_STATUS);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-
- return 0;
-}
-
-int i915gm_enable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
-
- /*
- * Vblank interrupts fail to wake the device up from C2+.
- * Disabling render clock gating during C-states avoids
- * the problem. There is a small power cost so we do this
- * only when vblank interrupts are actually enabled.
- */
- if (dev_priv->vblank_enabled++ == 0)
- intel_uncore_write(&dev_priv->uncore, SCPD0, _MASKED_BIT_ENABLE(CSTATE_RENDER_CLOCK_GATE_DISABLE));
-
- return i8xx_enable_vblank(crtc);
-}
-
-int i965_enable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- i915_enable_pipestat(dev_priv, pipe,
- PIPE_START_VBLANK_INTERRUPT_STATUS);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-
- return 0;
-}
-
-int ilk_enable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
- u32 bit = DISPLAY_VER(dev_priv) >= 7 ?
- DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- ilk_enable_display_irq(dev_priv, bit);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-
- /* Even though there is no DMC, frame counter can get stuck when
- * PSR is active as no frames are generated.
- */
- if (HAS_PSR(dev_priv))
- drm_crtc_vblank_restore(crtc);
-
- return 0;
-}
-
-static bool gen11_dsi_configure_te(struct intel_crtc *intel_crtc,
- bool enable)
-{
- struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
- enum port port;
-
- if (!(intel_crtc->mode_flags &
- (I915_MODE_FLAG_DSI_USE_TE1 | I915_MODE_FLAG_DSI_USE_TE0)))
- return false;
-
- /* for dual link cases we consider TE from slave */
- if (intel_crtc->mode_flags & I915_MODE_FLAG_DSI_USE_TE1)
- port = PORT_B;
- else
- port = PORT_A;
-
- intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_MASK_REG(port), DSI_TE_EVENT,
- enable ? 0 : DSI_TE_EVENT);
-
- intel_uncore_rmw(&dev_priv->uncore, DSI_INTR_IDENT_REG(port), 0, 0);
-
- return true;
-}
-
-int bdw_enable_vblank(struct drm_crtc *_crtc)
-{
- struct intel_crtc *crtc = to_intel_crtc(_crtc);
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum pipe pipe = crtc->pipe;
- unsigned long irqflags;
-
- if (gen11_dsi_configure_te(crtc, true))
- return 0;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- bdw_enable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-
- /* Even if there is no DMC, frame counter can get stuck when
- * PSR is active as no frames are generated, so check only for PSR.
- */
- if (HAS_PSR(dev_priv))
- drm_crtc_vblank_restore(&crtc->base);
-
- return 0;
-}
-
-/* Called from drm generic code, passed 'crtc' which
- * we use as a pipe index
- */
-void i8xx_disable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- i915_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_STATUS);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-}
-
-void i915gm_disable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
-
- i8xx_disable_vblank(crtc);
-
- if (--dev_priv->vblank_enabled == 0)
- intel_uncore_write(&dev_priv->uncore, SCPD0, _MASKED_BIT_DISABLE(CSTATE_RENDER_CLOCK_GATE_DISABLE));
-}
-
-void i965_disable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- i915_disable_pipestat(dev_priv, pipe,
- PIPE_START_VBLANK_INTERRUPT_STATUS);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-}
-
-void ilk_disable_vblank(struct drm_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
- unsigned long irqflags;
- u32 bit = DISPLAY_VER(dev_priv) >= 7 ?
- DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- ilk_disable_display_irq(dev_priv, bit);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-}
-
-void bdw_disable_vblank(struct drm_crtc *_crtc)
-{
- struct intel_crtc *crtc = to_intel_crtc(_crtc);
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum pipe pipe = crtc->pipe;
- unsigned long irqflags;
-
- if (gen11_dsi_configure_te(crtc, false))
- return;
-
- spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
-}
-
static void ibx_irq_reset(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
@@ -1997,55 +672,6 @@ static void ibx_irq_reset(struct drm_i915_private *dev_priv)
intel_uncore_write(&dev_priv->uncore, SERR_INT, 0xffffffff);
}
-static void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
-
- if (IS_CHERRYVIEW(dev_priv))
- intel_uncore_write(uncore, DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
- else
- intel_uncore_write(uncore, DPINVGTT, DPINVGTT_STATUS_MASK_VLV);
-
- i915_hotplug_interrupt_update_locked(dev_priv, 0xffffffff, 0);
- intel_uncore_rmw(uncore, PORT_HOTPLUG_STAT, 0, 0);
-
- i9xx_pipestat_irq_reset(dev_priv);
-
- GEN3_IRQ_RESET(uncore, VLV_);
- dev_priv->irq_mask = ~0u;
-}
-
-static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
-
- u32 pipestat_mask;
- u32 enable_mask;
- enum pipe pipe;
-
- pipestat_mask = PIPE_CRC_DONE_INTERRUPT_STATUS;
-
- i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
- for_each_pipe(dev_priv, pipe)
- i915_enable_pipestat(dev_priv, pipe, pipestat_mask);
-
- enable_mask = I915_DISPLAY_PORT_INTERRUPT |
- I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
- I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |
- I915_LPE_PIPE_A_INTERRUPT |
- I915_LPE_PIPE_B_INTERRUPT;
-
- if (IS_CHERRYVIEW(dev_priv))
- enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT |
- I915_LPE_PIPE_C_INTERRUPT;
-
- drm_WARN_ON(&dev_priv->drm, dev_priv->irq_mask != ~0u);
-
- dev_priv->irq_mask = ~enable_mask;
-
- GEN3_IRQ_INIT(uncore, VLV_, dev_priv->irq_mask, enable_mask);
-}
-
/* drm_dma.h hooks
*/
static void ilk_irq_reset(struct drm_i915_private *dev_priv)
@@ -2081,26 +707,6 @@ static void valleyview_irq_reset(struct drm_i915_private *dev_priv)
spin_unlock_irq(&dev_priv->irq_lock);
}
-static void gen8_display_irq_reset(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- enum pipe pipe;
-
- if (!HAS_DISPLAY(dev_priv))
- return;
-
- intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff);
- intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff);
-
- for_each_pipe(dev_priv, pipe)
- if (intel_display_power_is_enabled(dev_priv,
- POWER_DOMAIN_PIPE(pipe)))
- GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
-
- GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_);
- GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_);
-}
-
static void gen8_irq_reset(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
@@ -2116,53 +722,6 @@ static void gen8_irq_reset(struct drm_i915_private *dev_priv)
}
-static void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- enum pipe pipe;
- u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
- BIT(TRANSCODER_C) | BIT(TRANSCODER_D);
-
- if (!HAS_DISPLAY(dev_priv))
- return;
-
- intel_uncore_write(uncore, GEN11_DISPLAY_INT_CTL, 0);
-
- if (DISPLAY_VER(dev_priv) >= 12) {
- enum transcoder trans;
-
- for_each_cpu_transcoder_masked(dev_priv, trans, trans_mask) {
- enum intel_display_power_domain domain;
-
- domain = POWER_DOMAIN_TRANSCODER(trans);
- if (!intel_display_power_is_enabled(dev_priv, domain))
- continue;
-
- intel_uncore_write(uncore, TRANS_PSR_IMR(trans), 0xffffffff);
- intel_uncore_write(uncore, TRANS_PSR_IIR(trans), 0xffffffff);
- }
- } else {
- intel_uncore_write(uncore, EDP_PSR_IMR, 0xffffffff);
- intel_uncore_write(uncore, EDP_PSR_IIR, 0xffffffff);
- }
-
- for_each_pipe(dev_priv, pipe)
- if (intel_display_power_is_enabled(dev_priv,
- POWER_DOMAIN_PIPE(pipe)))
- GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
-
- GEN3_IRQ_RESET(uncore, GEN8_DE_PORT_);
- GEN3_IRQ_RESET(uncore, GEN8_DE_MISC_);
-
- 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);
-}
-
static void gen11_irq_reset(struct drm_i915_private *dev_priv)
{
struct intel_gt *gt = to_gt(dev_priv);
@@ -2194,52 +753,6 @@ static void dg1_irq_reset(struct drm_i915_private *dev_priv)
GEN3_IRQ_RESET(uncore, GEN8_PCU_);
}
-void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
- u8 pipe_mask)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- u32 extra_ier = GEN8_PIPE_VBLANK |
- gen8_de_pipe_underrun_mask(dev_priv) |
- gen8_de_pipe_flip_done_mask(dev_priv);
- enum pipe pipe;
-
- spin_lock_irq(&dev_priv->irq_lock);
-
- if (!intel_irqs_enabled(dev_priv)) {
- spin_unlock_irq(&dev_priv->irq_lock);
- return;
- }
-
- for_each_pipe_masked(dev_priv, pipe, pipe_mask)
- GEN8_IRQ_INIT_NDX(uncore, DE_PIPE, pipe,
- dev_priv->de_irq_mask[pipe],
- ~dev_priv->de_irq_mask[pipe] | extra_ier);
-
- spin_unlock_irq(&dev_priv->irq_lock);
-}
-
-void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
- u8 pipe_mask)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- enum pipe pipe;
-
- spin_lock_irq(&dev_priv->irq_lock);
-
- if (!intel_irqs_enabled(dev_priv)) {
- spin_unlock_irq(&dev_priv->irq_lock);
- return;
- }
-
- for_each_pipe_masked(dev_priv, pipe, pipe_mask)
- GEN8_IRQ_RESET_NDX(uncore, DE_PIPE, pipe);
-
- spin_unlock_irq(&dev_priv->irq_lock);
-
- /* make sure we're done processing display irqs */
- intel_synchronize_irq(dev_priv);
-}
-
static void cherryview_irq_reset(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
@@ -2257,35 +770,6 @@ static void cherryview_irq_reset(struct drm_i915_private *dev_priv)
spin_unlock_irq(&dev_priv->irq_lock);
}
-/*
- * SDEIER is also touched by the interrupt handler to work around missed PCH
- * interrupts. Hence we can't update it after the interrupt handler is enabled -
- * instead we unconditionally enable all PCH interrupt sources here, but then
- * only unmask them as needed with SDEIMR.
- *
- * Note that we currently do this after installing the interrupt handler,
- * but before we enable the master interrupt. That should be sufficient
- * to avoid races with the irq handler, assuming we have MSI. Shared legacy
- * interrupts could still race.
- */
-static void ibx_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
- u32 mask;
-
- if (HAS_PCH_NOP(dev_priv))
- return;
-
- if (HAS_PCH_IBX(dev_priv))
- mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
- else if (HAS_PCH_CPT(dev_priv) || HAS_PCH_LPT(dev_priv))
- mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
- else
- mask = SDE_GMBUS_CPT;
-
- GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
-}
-
static void ilk_irq_postinstall(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
@@ -2329,35 +813,6 @@ static void ilk_irq_postinstall(struct drm_i915_private *dev_priv)
display_mask | extra_mask);
}
-void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv)
-{
- lockdep_assert_held(&dev_priv->irq_lock);
-
- if (dev_priv->display_irqs_enabled)
- return;
-
- dev_priv->display_irqs_enabled = true;
-
- if (intel_irqs_enabled(dev_priv)) {
- vlv_display_irq_reset(dev_priv);
- vlv_display_irq_postinstall(dev_priv);
- }
-}
-
-void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv)
-{
- lockdep_assert_held(&dev_priv->irq_lock);
-
- if (!dev_priv->display_irqs_enabled)
- return;
-
- dev_priv->display_irqs_enabled = false;
-
- if (intel_irqs_enabled(dev_priv))
- vlv_display_irq_reset(dev_priv);
-}
-
-
static void valleyview_irq_postinstall(struct drm_i915_private *dev_priv)
{
gen5_gt_irq_postinstall(to_gt(dev_priv));
@@ -2371,108 +826,6 @@ static void valleyview_irq_postinstall(struct drm_i915_private *dev_priv)
intel_uncore_posting_read(&dev_priv->uncore, VLV_MASTER_IER);
}
-static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- struct intel_uncore *uncore = &dev_priv->uncore;
-
- u32 de_pipe_masked = gen8_de_pipe_fault_mask(dev_priv) |
- GEN8_PIPE_CDCLK_CRC_DONE;
- u32 de_pipe_enables;
- u32 de_port_masked = gen8_de_port_aux_mask(dev_priv);
- u32 de_port_enables;
- u32 de_misc_masked = GEN8_DE_EDP_PSR;
- u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
- BIT(TRANSCODER_C) | BIT(TRANSCODER_D);
- enum pipe pipe;
-
- if (!HAS_DISPLAY(dev_priv))
- return;
-
- if (DISPLAY_VER(dev_priv) <= 10)
- de_misc_masked |= GEN8_DE_MISC_GSE;
-
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
- de_port_masked |= BXT_DE_PORT_GMBUS;
-
- if (DISPLAY_VER(dev_priv) >= 11) {
- enum port port;
-
- if (intel_bios_is_dsi_present(dev_priv, &port))
- de_port_masked |= DSI0_TE | DSI1_TE;
- }
-
- de_pipe_enables = de_pipe_masked |
- GEN8_PIPE_VBLANK |
- gen8_de_pipe_underrun_mask(dev_priv) |
- gen8_de_pipe_flip_done_mask(dev_priv);
-
- de_port_enables = de_port_masked;
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
- de_port_enables |= BXT_DE_PORT_HOTPLUG_MASK;
- else if (IS_BROADWELL(dev_priv))
- de_port_enables |= BDW_DE_PORT_HOTPLUG_MASK;
-
- if (DISPLAY_VER(dev_priv) >= 12) {
- enum transcoder trans;
-
- for_each_cpu_transcoder_masked(dev_priv, trans, trans_mask) {
- enum intel_display_power_domain domain;
-
- domain = POWER_DOMAIN_TRANSCODER(trans);
- if (!intel_display_power_is_enabled(dev_priv, domain))
- continue;
-
- gen3_assert_iir_is_zero(uncore, TRANS_PSR_IIR(trans));
- }
- } else {
- gen3_assert_iir_is_zero(uncore, EDP_PSR_IIR);
- }
-
- for_each_pipe(dev_priv, pipe) {
- dev_priv->de_irq_mask[pipe] = ~de_pipe_masked;
-
- if (intel_display_power_is_enabled(dev_priv,
- POWER_DOMAIN_PIPE(pipe)))
- GEN8_IRQ_INIT_NDX(uncore, DE_PIPE, pipe,
- dev_priv->de_irq_mask[pipe],
- de_pipe_enables);
- }
-
- 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 (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;
-
- GEN3_IRQ_INIT(uncore, GEN11_DE_HPD_, ~de_hpd_masked,
- de_hpd_enables);
- }
-}
-
-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;
- u32 mask = SDE_GMBUS_ICP;
-
- GEN3_IRQ_INIT(uncore, SDE, ~mask, 0xffffffff);
-}
-
static void gen8_irq_postinstall(struct drm_i915_private *dev_priv)
{
if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
@@ -2486,17 +839,6 @@ static void gen8_irq_postinstall(struct drm_i915_private *dev_priv)
gen8_master_intr_enable(dev_priv->uncore.regs);
}
-static void gen11_de_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- if (!HAS_DISPLAY(dev_priv))
- return;
-
- gen8_de_irq_postinstall(dev_priv);
-
- intel_uncore_write(&dev_priv->uncore, GEN11_DISPLAY_INT_CTL,
- GEN11_DISPLAY_IRQ_ENABLE);
-}
-
static void gen11_irq_postinstall(struct drm_i915_private *dev_priv)
{
struct intel_gt *gt = to_gt(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_irq.h b/drivers/gpu/drm/i915/i915_irq.h
index 913c854f873d..e665a1b007dc 100644
--- a/drivers/gpu/drm/i915/i915_irq.h
+++ b/drivers/gpu/drm/i915/i915_irq.h
@@ -25,34 +25,6 @@ void intel_irq_fini(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);
void intel_irq_uninstall(struct drm_i915_private *dev_priv);
-u32 i915_pipestat_enable_mask(struct drm_i915_private *dev_priv,
- enum pipe pipe);
-void
-i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
- u32 status_mask);
-
-void
-i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
- u32 status_mask);
-
-void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
-void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
-
-void ilk_update_display_irq(struct drm_i915_private *i915,
- u32 interrupt_mask, u32 enabled_irq_mask);
-void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits);
-void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits);
-
-void bdw_update_port_irq(struct drm_i915_private *i915,
- u32 interrupt_mask, u32 enabled_irq_mask);
-void bdw_enable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
-void bdw_disable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
-
-void ibx_display_interrupt_update(struct drm_i915_private *i915,
- u32 interrupt_mask, u32 enabled_irq_mask);
-void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits);
-void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits);
-
void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv);
@@ -68,23 +40,7 @@ bool intel_irqs_enabled(struct drm_i915_private *dev_priv);
void intel_synchronize_irq(struct drm_i915_private *i915);
void intel_synchronize_hardirq(struct drm_i915_private *i915);
-void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
- u8 pipe_mask);
-void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
- u8 pipe_mask);
-u32 gen8_de_pipe_underrun_mask(struct drm_i915_private *dev_priv);
-
-
-int i8xx_enable_vblank(struct drm_crtc *crtc);
-int i915gm_enable_vblank(struct drm_crtc *crtc);
-int i965_enable_vblank(struct drm_crtc *crtc);
-int ilk_enable_vblank(struct drm_crtc *crtc);
-int bdw_enable_vblank(struct drm_crtc *crtc);
-void i8xx_disable_vblank(struct drm_crtc *crtc);
-void i915gm_disable_vblank(struct drm_crtc *crtc);
-void i965_disable_vblank(struct drm_crtc *crtc);
-void ilk_disable_vblank(struct drm_crtc *crtc);
-void bdw_disable_vblank(struct drm_crtc *crtc);
+void gen3_assert_iir_is_zero(struct intel_uncore *uncore, i915_reg_t reg);
void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
i915_reg_t iir, i915_reg_t ier);
--
2.39.2
^ permalink raw reply related [flat|nested] 8+ messages in thread