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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#include <linux/fb.h>
#include "intel_fbdev_fb.h"
#include "xe_bo.h"
#include "xe_ttm_stolen_mgr.h"
#include "xe_wa.h"
#include <generated/xe_wa_oob.h>
struct drm_gem_object *intel_fbdev_fb_bo_create(struct drm_device *drm, int size)
{
struct xe_device *xe = to_xe_device(drm);
struct xe_bo *obj;
obj = ERR_PTR(-ENODEV);
if (!IS_DGFX(xe) && !XE_GT_WA(xe_root_mmio_gt(xe), 22019338487_display)) {
obj = xe_bo_create_pin_map_novm(xe, xe_device_get_root_tile(xe),
size,
ttm_bo_type_kernel, XE_BO_FLAG_SCANOUT |
XE_BO_FLAG_STOLEN |
XE_BO_FLAG_GGTT, false);
if (!IS_ERR(obj))
drm_info(&xe->drm, "Allocated fbdev into stolen\n");
else
drm_info(&xe->drm, "Allocated fbdev into stolen failed: %li\n", PTR_ERR(obj));
}
if (IS_ERR(obj)) {
obj = xe_bo_create_pin_map_novm(xe, xe_device_get_root_tile(xe), size,
ttm_bo_type_kernel, XE_BO_FLAG_SCANOUT |
XE_BO_FLAG_VRAM_IF_DGFX(xe_device_get_root_tile(xe)) |
XE_BO_FLAG_GGTT, false);
}
if (IS_ERR(obj)) {
drm_err(&xe->drm, "failed to allocate framebuffer (%pe)\n", obj);
return ERR_PTR(-ENOMEM);
}
return &obj->ttm.base;
}
void intel_fbdev_fb_bo_destroy(struct drm_gem_object *obj)
{
xe_bo_unpin_map_no_vm(gem_to_xe_bo(obj));
}
int intel_fbdev_fb_fill_info(struct drm_device *drm, struct fb_info *info,
struct drm_gem_object *_obj, struct i915_vma *vma)
{
struct xe_bo *obj = gem_to_xe_bo(_obj);
struct pci_dev *pdev = to_pci_dev(drm->dev);
if (!(obj->flags & XE_BO_FLAG_SYSTEM)) {
if (obj->flags & XE_BO_FLAG_STOLEN)
info->fix.smem_start = xe_ttm_stolen_io_offset(obj, 0);
else
info->fix.smem_start =
pci_resource_start(pdev, 2) +
xe_bo_addr(obj, 0, XE_PAGE_SIZE);
info->fix.smem_len = obj->ttm.base.size;
} else {
/* XXX: Pure fiction, as the BO may not be physically accessible.. */
info->fix.smem_start = 0;
info->fix.smem_len = obj->ttm.base.size;
}
XE_WARN_ON(iosys_map_is_null(&obj->vmap));
info->screen_base = obj->vmap.vaddr_iomem;
info->screen_size = obj->ttm.base.size;
return 0;
}
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