51aec8bf16
Top-level handling of standalone media interrupts will be processed as part of the primary GT's interrupt handler (since primary and media GTs share an MMIO space, unlike remote tile setups). When we get down to the point of handling engine interrupts, we need to take care to lookup VCS and VECS engines in the media GT rather than the primary. There are also a couple of additional "other" instance bits that correspond to the media GT's GuC and media GT's power management interrupts; we need to direct those to the media GT instance as well. Bspec: 45605 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220906234934.3655440-15-matthew.d.roper@intel.com Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
47 lines
1 KiB
C
47 lines
1 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#include <drm/drm_managed.h>
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#include "i915_drv.h"
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#include "gt/intel_gt.h"
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#include "gt/intel_sa_media.h"
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int intel_sa_mediagt_setup(struct intel_gt *gt, phys_addr_t phys_addr,
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u32 gsi_offset)
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{
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struct drm_i915_private *i915 = gt->i915;
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struct intel_uncore *uncore;
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uncore = drmm_kzalloc(&i915->drm, sizeof(*uncore), GFP_KERNEL);
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if (!uncore)
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return -ENOMEM;
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uncore->gsi_offset = gsi_offset;
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gt->irq_lock = to_gt(i915)->irq_lock;
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intel_gt_common_init_early(gt);
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intel_uncore_init_early(uncore, gt);
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/*
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* Standalone media shares the general MMIO space with the primary
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* GT. We'll re-use the primary GT's mapping.
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*/
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uncore->regs = i915->uncore.regs;
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if (drm_WARN_ON(&i915->drm, uncore->regs == NULL))
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return -EIO;
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gt->uncore = uncore;
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gt->phys_addr = phys_addr;
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/*
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* For current platforms we can assume there's only a single
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* media GT and cache it for quick lookup.
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*/
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drm_WARN_ON(&i915->drm, i915->media_gt);
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i915->media_gt = gt;
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return 0;
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}
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