#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"
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)
{
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;
* @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;
* @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;
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,
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;
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;
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)
{
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;
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 |
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;
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
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
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);
}
/**
projects / linux-2.6-microblaze.git / blobdiff