1// SPDX-License-Identifier: MIT
2/*
3 * Copyright © 2021 Intel Corporation
4 */
5
6#include <drm/drm_managed.h>
7
8#include "i915_drv.h"
9#include "gt/intel_gt.h"
10#include "gt/intel_sa_media.h"
11
12int intel_sa_mediagt_setup(struct intel_gt *gt, phys_addr_t phys_addr,
13 u32 gsi_offset)
14{
15 struct drm_i915_private *i915 = gt->i915;
16 struct intel_uncore *uncore;
17
18 uncore = drmm_kzalloc(dev: &i915->drm, size: sizeof(*uncore), GFP_KERNEL);
19 if (!uncore)
20 return -ENOMEM;
21
22 uncore->gsi_offset = gsi_offset;
23
24 gt->irq_lock = to_gt(i915)->irq_lock;
25 intel_gt_common_init_early(gt);
26 intel_uncore_init_early(uncore, gt);
27
28 /*
29 * Standalone media shares the general MMIO space with the primary
30 * GT. We'll reuse the primary GT's mapping.
31 */
32 uncore->regs = intel_uncore_regs(uncore: &i915->uncore);
33 if (drm_WARN_ON(&i915->drm, uncore->regs == NULL))
34 return -EIO;
35
36 gt->uncore = uncore;
37 gt->phys_addr = phys_addr;
38
39 /*
40 * For current platforms we can assume there's only a single
41 * media GT and cache it for quick lookup.
42 */
43 drm_WARN_ON(&i915->drm, i915->media_gt);
44 i915->media_gt = gt;
45
46 return 0;
47}
48