Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 519 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c
new file mode 100644
index 000000000..f26882fdc
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c
@@ -0,0 +1,519 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include <linux/sched/clock.h>
+
+#include "i915_drv.h"
+#include "i915_irq.h"
+#include "intel_breadcrumbs.h"
+#include "intel_gt.h"
+#include "intel_gt_irq.h"
+#include "intel_gt_regs.h"
+#include "intel_uncore.h"
+#include "intel_rps.h"
+#include "pxp/intel_pxp_irq.h"
+
+static void guc_irq_handler(struct intel_guc *guc, u16 iir)
+{
+	if (iir & GUC_INTR_GUC2HOST)
+		intel_guc_to_host_event_handler(guc);
+}
+
+static u32
+gen11_gt_engine_identity(struct intel_gt *gt,
+			 const unsigned int bank, const unsigned int bit)
+{
+	void __iomem * const regs = gt->uncore->regs;
+	u32 timeout_ts;
+	u32 ident;
+
+	lockdep_assert_held(gt->irq_lock);
+
+	raw_reg_write(regs, GEN11_IIR_REG_SELECTOR(bank), BIT(bit));
+
+	/*
+	 * NB: Specs do not specify how long to spin wait,
+	 * so we do ~100us as an educated guess.
+	 */
+	timeout_ts = (local_clock() >> 10) + 100;
+	do {
+		ident = raw_reg_read(regs, GEN11_INTR_IDENTITY_REG(bank));
+	} while (!(ident & GEN11_INTR_DATA_VALID) &&
+		 !time_after32(local_clock() >> 10, timeout_ts));
+
+	if (unlikely(!(ident & GEN11_INTR_DATA_VALID))) {
+		DRM_ERROR("INTR_IDENTITY_REG%u:%u 0x%08x not valid!\n",
+			  bank, bit, ident);
+		return 0;
+	}
+
+	raw_reg_write(regs, GEN11_INTR_IDENTITY_REG(bank),
+		      GEN11_INTR_DATA_VALID);
+
+	return ident;
+}
+
+static void
+gen11_other_irq_handler(struct intel_gt *gt, const u8 instance,
+			const u16 iir)
+{
+	struct intel_gt *media_gt = gt->i915->media_gt;
+
+	if (instance == OTHER_GUC_INSTANCE)
+		return guc_irq_handler(&gt->uc.guc, iir);
+	if (instance == OTHER_MEDIA_GUC_INSTANCE && media_gt)
+		return guc_irq_handler(&media_gt->uc.guc, iir);
+
+	if (instance == OTHER_GTPM_INSTANCE)
+		return gen11_rps_irq_handler(&gt->rps, iir);
+	if (instance == OTHER_MEDIA_GTPM_INSTANCE && media_gt)
+		return gen11_rps_irq_handler(&media_gt->rps, iir);
+
+	if (instance == OTHER_KCR_INSTANCE)
+		return intel_pxp_irq_handler(&gt->pxp, iir);
+
+	if (instance == OTHER_GSC_INSTANCE)
+		return intel_gsc_irq_handler(gt, iir);
+
+	WARN_ONCE(1, "unhandled other interrupt instance=0x%x, iir=0x%x\n",
+		  instance, iir);
+}
+
+static void
+gen11_engine_irq_handler(struct intel_gt *gt, const u8 class,
+			 const u8 instance, const u16 iir)
+{
+	struct intel_engine_cs *engine;
+
+	/*
+	 * Platforms with standalone media have their media engines in another
+	 * GT.
+	 */
+	if (MEDIA_VER(gt->i915) >= 13 &&
+	    (class == VIDEO_DECODE_CLASS || class == VIDEO_ENHANCEMENT_CLASS)) {
+		if (!gt->i915->media_gt)
+			goto err;
+
+		gt = gt->i915->media_gt;
+	}
+
+	if (instance <= MAX_ENGINE_INSTANCE)
+		engine = gt->engine_class[class][instance];
+	else
+		engine = NULL;
+
+	if (likely(engine))
+		return intel_engine_cs_irq(engine, iir);
+
+err:
+	WARN_ONCE(1, "unhandled engine interrupt class=0x%x, instance=0x%x\n",
+		  class, instance);
+}
+
+static void
+gen11_gt_identity_handler(struct intel_gt *gt, const u32 identity)
+{
+	const u8 class = GEN11_INTR_ENGINE_CLASS(identity);
+	const u8 instance = GEN11_INTR_ENGINE_INSTANCE(identity);
+	const u16 intr = GEN11_INTR_ENGINE_INTR(identity);
+
+	if (unlikely(!intr))
+		return;
+
+	if (class <= COPY_ENGINE_CLASS || class == COMPUTE_CLASS)
+		return gen11_engine_irq_handler(gt, class, instance, intr);
+
+	if (class == OTHER_CLASS)
+		return gen11_other_irq_handler(gt, instance, intr);
+
+	WARN_ONCE(1, "unknown interrupt class=0x%x, instance=0x%x, intr=0x%x\n",
+		  class, instance, intr);
+}
+
+static void
+gen11_gt_bank_handler(struct intel_gt *gt, const unsigned int bank)
+{
+	void __iomem * const regs = gt->uncore->regs;
+	unsigned long intr_dw;
+	unsigned int bit;
+
+	lockdep_assert_held(gt->irq_lock);
+
+	intr_dw = raw_reg_read(regs, GEN11_GT_INTR_DW(bank));
+
+	for_each_set_bit(bit, &intr_dw, 32) {
+		const u32 ident = gen11_gt_engine_identity(gt, bank, bit);
+
+		gen11_gt_identity_handler(gt, ident);
+	}
+
+	/* Clear must be after shared has been served for engine */
+	raw_reg_write(regs, GEN11_GT_INTR_DW(bank), intr_dw);
+}
+
+void gen11_gt_irq_handler(struct intel_gt *gt, const u32 master_ctl)
+{
+	unsigned int bank;
+
+	spin_lock(gt->irq_lock);
+
+	for (bank = 0; bank < 2; bank++) {
+		if (master_ctl & GEN11_GT_DW_IRQ(bank))
+			gen11_gt_bank_handler(gt, bank);
+	}
+
+	spin_unlock(gt->irq_lock);
+}
+
+bool gen11_gt_reset_one_iir(struct intel_gt *gt,
+			    const unsigned int bank, const unsigned int bit)
+{
+	void __iomem * const regs = gt->uncore->regs;
+	u32 dw;
+
+	lockdep_assert_held(gt->irq_lock);
+
+	dw = raw_reg_read(regs, GEN11_GT_INTR_DW(bank));
+	if (dw & BIT(bit)) {
+		/*
+		 * According to the BSpec, DW_IIR bits cannot be cleared without
+		 * first servicing the Selector & Shared IIR registers.
+		 */
+		gen11_gt_engine_identity(gt, bank, bit);
+
+		/*
+		 * We locked GT INT DW by reading it. If we want to (try
+		 * to) recover from this successfully, we need to clear
+		 * our bit, otherwise we are locking the register for
+		 * everybody.
+		 */
+		raw_reg_write(regs, GEN11_GT_INTR_DW(bank), BIT(bit));
+
+		return true;
+	}
+
+	return false;
+}
+
+void gen11_gt_irq_reset(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+
+	/* Disable RCS, BCS, VCS and VECS class engines. */
+	intel_uncore_write(uncore, GEN11_RENDER_COPY_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_VCS_VECS_INTR_ENABLE,	  0);
+	if (CCS_MASK(gt))
+		intel_uncore_write(uncore, GEN12_CCS_RSVD_INTR_ENABLE, 0);
+	if (HAS_HECI_GSC(gt->i915))
+		intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_ENABLE, 0);
+
+	/* Restore masks irqs on RCS, BCS, VCS and VECS engines. */
+	intel_uncore_write(uncore, GEN11_RCS0_RSVD_INTR_MASK,	~0);
+	intel_uncore_write(uncore, GEN11_BCS_RSVD_INTR_MASK,	~0);
+	if (HAS_ENGINE(gt, BCS1) || HAS_ENGINE(gt, BCS2))
+		intel_uncore_write(uncore, XEHPC_BCS1_BCS2_INTR_MASK, ~0);
+	if (HAS_ENGINE(gt, BCS3) || HAS_ENGINE(gt, BCS4))
+		intel_uncore_write(uncore, XEHPC_BCS3_BCS4_INTR_MASK, ~0);
+	if (HAS_ENGINE(gt, BCS5) || HAS_ENGINE(gt, BCS6))
+		intel_uncore_write(uncore, XEHPC_BCS5_BCS6_INTR_MASK, ~0);
+	if (HAS_ENGINE(gt, BCS7) || HAS_ENGINE(gt, BCS8))
+		intel_uncore_write(uncore, XEHPC_BCS7_BCS8_INTR_MASK, ~0);
+	intel_uncore_write(uncore, GEN11_VCS0_VCS1_INTR_MASK,	~0);
+	intel_uncore_write(uncore, GEN11_VCS2_VCS3_INTR_MASK,	~0);
+	if (HAS_ENGINE(gt, VCS4) || HAS_ENGINE(gt, VCS5))
+		intel_uncore_write(uncore, GEN12_VCS4_VCS5_INTR_MASK,   ~0);
+	if (HAS_ENGINE(gt, VCS6) || HAS_ENGINE(gt, VCS7))
+		intel_uncore_write(uncore, GEN12_VCS6_VCS7_INTR_MASK,   ~0);
+	intel_uncore_write(uncore, GEN11_VECS0_VECS1_INTR_MASK,	~0);
+	if (HAS_ENGINE(gt, VECS2) || HAS_ENGINE(gt, VECS3))
+		intel_uncore_write(uncore, GEN12_VECS2_VECS3_INTR_MASK, ~0);
+	if (HAS_ENGINE(gt, CCS0) || HAS_ENGINE(gt, CCS1))
+		intel_uncore_write(uncore, GEN12_CCS0_CCS1_INTR_MASK, ~0);
+	if (HAS_ENGINE(gt, CCS2) || HAS_ENGINE(gt, CCS3))
+		intel_uncore_write(uncore, GEN12_CCS2_CCS3_INTR_MASK, ~0);
+	if (HAS_HECI_GSC(gt->i915))
+		intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_MASK, ~0);
+
+	intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK,  ~0);
+	intel_uncore_write(uncore, GEN11_GUC_SG_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_GUC_SG_INTR_MASK,  ~0);
+
+	intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_MASK,  ~0);
+}
+
+void gen11_gt_irq_postinstall(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+	u32 irqs = GT_RENDER_USER_INTERRUPT;
+	const u32 gsc_mask = GSC_IRQ_INTF(0) | GSC_IRQ_INTF(1);
+	u32 dmask;
+	u32 smask;
+
+	if (!intel_uc_wants_guc_submission(&gt->uc))
+		irqs |= GT_CS_MASTER_ERROR_INTERRUPT |
+			GT_CONTEXT_SWITCH_INTERRUPT |
+			GT_WAIT_SEMAPHORE_INTERRUPT;
+
+	dmask = irqs << 16 | irqs;
+	smask = irqs << 16;
+
+	BUILD_BUG_ON(irqs & 0xffff0000);
+
+	/* Enable RCS, BCS, VCS and VECS class interrupts. */
+	intel_uncore_write(uncore, GEN11_RENDER_COPY_INTR_ENABLE, dmask);
+	intel_uncore_write(uncore, GEN11_VCS_VECS_INTR_ENABLE, dmask);
+	if (CCS_MASK(gt))
+		intel_uncore_write(uncore, GEN12_CCS_RSVD_INTR_ENABLE, smask);
+	if (HAS_HECI_GSC(gt->i915))
+		intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_ENABLE,
+				   gsc_mask);
+
+	/* Unmask irqs on RCS, BCS, VCS and VECS engines. */
+	intel_uncore_write(uncore, GEN11_RCS0_RSVD_INTR_MASK, ~smask);
+	intel_uncore_write(uncore, GEN11_BCS_RSVD_INTR_MASK, ~smask);
+	if (HAS_ENGINE(gt, BCS1) || HAS_ENGINE(gt, BCS2))
+		intel_uncore_write(uncore, XEHPC_BCS1_BCS2_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, BCS3) || HAS_ENGINE(gt, BCS4))
+		intel_uncore_write(uncore, XEHPC_BCS3_BCS4_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, BCS5) || HAS_ENGINE(gt, BCS6))
+		intel_uncore_write(uncore, XEHPC_BCS5_BCS6_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, BCS7) || HAS_ENGINE(gt, BCS8))
+		intel_uncore_write(uncore, XEHPC_BCS7_BCS8_INTR_MASK, ~dmask);
+	intel_uncore_write(uncore, GEN11_VCS0_VCS1_INTR_MASK, ~dmask);
+	intel_uncore_write(uncore, GEN11_VCS2_VCS3_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, VCS4) || HAS_ENGINE(gt, VCS5))
+		intel_uncore_write(uncore, GEN12_VCS4_VCS5_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, VCS6) || HAS_ENGINE(gt, VCS7))
+		intel_uncore_write(uncore, GEN12_VCS6_VCS7_INTR_MASK, ~dmask);
+	intel_uncore_write(uncore, GEN11_VECS0_VECS1_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, VECS2) || HAS_ENGINE(gt, VECS3))
+		intel_uncore_write(uncore, GEN12_VECS2_VECS3_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, CCS0) || HAS_ENGINE(gt, CCS1))
+		intel_uncore_write(uncore, GEN12_CCS0_CCS1_INTR_MASK, ~dmask);
+	if (HAS_ENGINE(gt, CCS2) || HAS_ENGINE(gt, CCS3))
+		intel_uncore_write(uncore, GEN12_CCS2_CCS3_INTR_MASK, ~dmask);
+	if (HAS_HECI_GSC(gt->i915))
+		intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_MASK, ~gsc_mask);
+
+	/*
+	 * RPS interrupts will get enabled/disabled on demand when RPS itself
+	 * is enabled/disabled.
+	 */
+	gt->pm_ier = 0x0;
+	gt->pm_imr = ~gt->pm_ier;
+	intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK,  ~0);
+
+	/* Same thing for GuC interrupts */
+	intel_uncore_write(uncore, GEN11_GUC_SG_INTR_ENABLE, 0);
+	intel_uncore_write(uncore, GEN11_GUC_SG_INTR_MASK,  ~0);
+}
+
+void gen5_gt_irq_handler(struct intel_gt *gt, u32 gt_iir)
+{
+	if (gt_iir & GT_RENDER_USER_INTERRUPT)
+		intel_engine_cs_irq(gt->engine_class[RENDER_CLASS][0],
+				    gt_iir);
+
+	if (gt_iir & ILK_BSD_USER_INTERRUPT)
+		intel_engine_cs_irq(gt->engine_class[VIDEO_DECODE_CLASS][0],
+				    gt_iir);
+}
+
+static void gen7_parity_error_irq_handler(struct intel_gt *gt, u32 iir)
+{
+	if (!HAS_L3_DPF(gt->i915))
+		return;
+
+	spin_lock(gt->irq_lock);
+	gen5_gt_disable_irq(gt, GT_PARITY_ERROR(gt->i915));
+	spin_unlock(gt->irq_lock);
+
+	if (iir & GT_RENDER_L3_PARITY_ERROR_INTERRUPT_S1)
+		gt->i915->l3_parity.which_slice |= 1 << 1;
+
+	if (iir & GT_RENDER_L3_PARITY_ERROR_INTERRUPT)
+		gt->i915->l3_parity.which_slice |= 1 << 0;
+
+	schedule_work(&gt->i915->l3_parity.error_work);
+}
+
+void gen6_gt_irq_handler(struct intel_gt *gt, u32 gt_iir)
+{
+	if (gt_iir & GT_RENDER_USER_INTERRUPT)
+		intel_engine_cs_irq(gt->engine_class[RENDER_CLASS][0],
+				    gt_iir);
+
+	if (gt_iir & GT_BSD_USER_INTERRUPT)
+		intel_engine_cs_irq(gt->engine_class[VIDEO_DECODE_CLASS][0],
+				    gt_iir >> 12);
+
+	if (gt_iir & GT_BLT_USER_INTERRUPT)
+		intel_engine_cs_irq(gt->engine_class[COPY_ENGINE_CLASS][0],
+				    gt_iir >> 22);
+
+	if (gt_iir & (GT_BLT_CS_ERROR_INTERRUPT |
+		      GT_BSD_CS_ERROR_INTERRUPT |
+		      GT_CS_MASTER_ERROR_INTERRUPT))
+		DRM_DEBUG("Command parser error, gt_iir 0x%08x\n", gt_iir);
+
+	if (gt_iir & GT_PARITY_ERROR(gt->i915))
+		gen7_parity_error_irq_handler(gt, gt_iir);
+}
+
+void gen8_gt_irq_handler(struct intel_gt *gt, u32 master_ctl)
+{
+	void __iomem * const regs = gt->uncore->regs;
+	u32 iir;
+
+	if (master_ctl & (GEN8_GT_RCS_IRQ | GEN8_GT_BCS_IRQ)) {
+		iir = raw_reg_read(regs, GEN8_GT_IIR(0));
+		if (likely(iir)) {
+			intel_engine_cs_irq(gt->engine_class[RENDER_CLASS][0],
+					    iir >> GEN8_RCS_IRQ_SHIFT);
+			intel_engine_cs_irq(gt->engine_class[COPY_ENGINE_CLASS][0],
+					    iir >> GEN8_BCS_IRQ_SHIFT);
+			raw_reg_write(regs, GEN8_GT_IIR(0), iir);
+		}
+	}
+
+	if (master_ctl & (GEN8_GT_VCS0_IRQ | GEN8_GT_VCS1_IRQ)) {
+		iir = raw_reg_read(regs, GEN8_GT_IIR(1));
+		if (likely(iir)) {
+			intel_engine_cs_irq(gt->engine_class[VIDEO_DECODE_CLASS][0],
+					    iir >> GEN8_VCS0_IRQ_SHIFT);
+			intel_engine_cs_irq(gt->engine_class[VIDEO_DECODE_CLASS][1],
+					    iir >> GEN8_VCS1_IRQ_SHIFT);
+			raw_reg_write(regs, GEN8_GT_IIR(1), iir);
+		}
+	}
+
+	if (master_ctl & GEN8_GT_VECS_IRQ) {
+		iir = raw_reg_read(regs, GEN8_GT_IIR(3));
+		if (likely(iir)) {
+			intel_engine_cs_irq(gt->engine_class[VIDEO_ENHANCEMENT_CLASS][0],
+					    iir >> GEN8_VECS_IRQ_SHIFT);
+			raw_reg_write(regs, GEN8_GT_IIR(3), iir);
+		}
+	}
+
+	if (master_ctl & (GEN8_GT_PM_IRQ | GEN8_GT_GUC_IRQ)) {
+		iir = raw_reg_read(regs, GEN8_GT_IIR(2));
+		if (likely(iir)) {
+			gen6_rps_irq_handler(&gt->rps, iir);
+			guc_irq_handler(&gt->uc.guc, iir >> 16);
+			raw_reg_write(regs, GEN8_GT_IIR(2), iir);
+		}
+	}
+}
+
+void gen8_gt_irq_reset(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+
+	GEN8_IRQ_RESET_NDX(uncore, GT, 0);
+	GEN8_IRQ_RESET_NDX(uncore, GT, 1);
+	GEN8_IRQ_RESET_NDX(uncore, GT, 2);
+	GEN8_IRQ_RESET_NDX(uncore, GT, 3);
+}
+
+void gen8_gt_irq_postinstall(struct intel_gt *gt)
+{
+	/* These are interrupts we'll toggle with the ring mask register */
+	const u32 irqs =
+		GT_CS_MASTER_ERROR_INTERRUPT |
+		GT_RENDER_USER_INTERRUPT |
+		GT_CONTEXT_SWITCH_INTERRUPT |
+		GT_WAIT_SEMAPHORE_INTERRUPT;
+	const u32 gt_interrupts[] = {
+		irqs << GEN8_RCS_IRQ_SHIFT | irqs << GEN8_BCS_IRQ_SHIFT,
+		irqs << GEN8_VCS0_IRQ_SHIFT | irqs << GEN8_VCS1_IRQ_SHIFT,
+		0,
+		irqs << GEN8_VECS_IRQ_SHIFT,
+	};
+	struct intel_uncore *uncore = gt->uncore;
+
+	gt->pm_ier = 0x0;
+	gt->pm_imr = ~gt->pm_ier;
+	GEN8_IRQ_INIT_NDX(uncore, GT, 0, ~gt_interrupts[0], gt_interrupts[0]);
+	GEN8_IRQ_INIT_NDX(uncore, GT, 1, ~gt_interrupts[1], gt_interrupts[1]);
+	/*
+	 * RPS interrupts will get enabled/disabled on demand when RPS itself
+	 * is enabled/disabled. Same wil be the case for GuC interrupts.
+	 */
+	GEN8_IRQ_INIT_NDX(uncore, GT, 2, gt->pm_imr, gt->pm_ier);
+	GEN8_IRQ_INIT_NDX(uncore, GT, 3, ~gt_interrupts[3], gt_interrupts[3]);
+}
+
+static void gen5_gt_update_irq(struct intel_gt *gt,
+			       u32 interrupt_mask,
+			       u32 enabled_irq_mask)
+{
+	lockdep_assert_held(gt->irq_lock);
+
+	GEM_BUG_ON(enabled_irq_mask & ~interrupt_mask);
+
+	gt->gt_imr &= ~interrupt_mask;
+	gt->gt_imr |= (~enabled_irq_mask & interrupt_mask);
+	intel_uncore_write(gt->uncore, GTIMR, gt->gt_imr);
+}
+
+void gen5_gt_enable_irq(struct intel_gt *gt, u32 mask)
+{
+	gen5_gt_update_irq(gt, mask, mask);
+	intel_uncore_posting_read_fw(gt->uncore, GTIMR);
+}
+
+void gen5_gt_disable_irq(struct intel_gt *gt, u32 mask)
+{
+	gen5_gt_update_irq(gt, mask, 0);
+}
+
+void gen5_gt_irq_reset(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+
+	GEN3_IRQ_RESET(uncore, GT);
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		GEN3_IRQ_RESET(uncore, GEN6_PM);
+}
+
+void gen5_gt_irq_postinstall(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+	u32 pm_irqs = 0;
+	u32 gt_irqs = 0;
+
+	gt->gt_imr = ~0;
+	if (HAS_L3_DPF(gt->i915)) {
+		/* L3 parity interrupt is always unmasked. */
+		gt->gt_imr = ~GT_PARITY_ERROR(gt->i915);
+		gt_irqs |= GT_PARITY_ERROR(gt->i915);
+	}
+
+	gt_irqs |= GT_RENDER_USER_INTERRUPT;
+	if (GRAPHICS_VER(gt->i915) == 5)
+		gt_irqs |= ILK_BSD_USER_INTERRUPT;
+	else
+		gt_irqs |= GT_BLT_USER_INTERRUPT | GT_BSD_USER_INTERRUPT;
+
+	GEN3_IRQ_INIT(uncore, GT, gt->gt_imr, gt_irqs);
+
+	if (GRAPHICS_VER(gt->i915) >= 6) {
+		/*
+		 * RPS interrupts will get enabled/disabled on demand when RPS
+		 * itself is enabled/disabled.
+		 */
+		if (HAS_ENGINE(gt, VECS0)) {
+			pm_irqs |= PM_VEBOX_USER_INTERRUPT;
+			gt->pm_ier |= PM_VEBOX_USER_INTERRUPT;
+		}
+
+		gt->pm_imr = 0xffffffff;
+		GEN3_IRQ_INIT(uncore, GEN6_PM, gt->pm_imr, pm_irqs);
+	}
+}