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/* SPDX-License-Identifier: MIT
*
* Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
*/
#include "priv.h"
#include <nvhw/drf.h>
#include <nvhw/ref/gb100/dev_hshub_base.h>
static void
gb100_fb_sysmem_flush_page_init(struct nvkm_fb *fb)
{
const u32 addr_hi = upper_32_bits(fb->sysmem.flush_page_addr);
const u32 addr_lo = lower_32_bits(fb->sysmem.flush_page_addr);
const u32 hshub = DRF_LO(NV_PFB_HSHUB0);
struct nvkm_device *device = fb->subdev.device;
nvkm_wr32(device, hshub + NV_PFB_HSHUB_PCIE_FLUSH_SYSMEM_ADDR_HI, addr_hi);
nvkm_wr32(device, hshub + NV_PFB_HSHUB_PCIE_FLUSH_SYSMEM_ADDR_LO, addr_lo);
nvkm_wr32(device, hshub + NV_PFB_HSHUB_EG_PCIE_FLUSH_SYSMEM_ADDR_HI, addr_hi);
nvkm_wr32(device, hshub + NV_PFB_HSHUB_EG_PCIE_FLUSH_SYSMEM_ADDR_LO, addr_lo);
}
static const struct nvkm_fb_func
gb100_fb = {
.sysmem.flush_page_init = gb100_fb_sysmem_flush_page_init,
.vidmem.size = ga102_fb_vidmem_size,
};
int
gb100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
{
return r535_fb_new(&gb100_fb, device, type, inst, pfb);
}
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