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