48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
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// 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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