| 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 | |
| 12 | int 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 re-use 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 |