1/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
2/* Copyright (c) 2023 Imagination Technologies Ltd. */
3
4#ifndef PVR_FW_MIPS_H
5#define PVR_FW_MIPS_H
6
7#include "pvr_rogue_mips.h"
8
9#include <asm/page.h>
10#include <linux/math.h>
11#include <linux/types.h>
12
13/* Forward declaration from pvr_gem.h. */
14struct pvr_gem_object;
15
16#define PVR_MIPS_PT_PAGE_COUNT DIV_ROUND_UP(ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES * ROGUE_MIPSFW_PAGE_SIZE_4K, PAGE_SIZE)
17
18/**
19 * struct pvr_fw_mips_data - MIPS-specific data
20 */
21struct pvr_fw_mips_data {
22 /**
23 * @pt_pages: Pages containing MIPS pagetable.
24 */
25 struct page *pt_pages[PVR_MIPS_PT_PAGE_COUNT];
26
27 /** @pt: Pointer to CPU mapping of MIPS pagetable. */
28 u32 *pt;
29
30 /** @pt_dma_addr: DMA mappings of MIPS pagetable. */
31 dma_addr_t pt_dma_addr[PVR_MIPS_PT_PAGE_COUNT];
32
33 /** @boot_code_dma_addr: DMA address of MIPS boot code. */
34 dma_addr_t boot_code_dma_addr;
35
36 /** @boot_data_dma_addr: DMA address of MIPS boot data. */
37 dma_addr_t boot_data_dma_addr;
38
39 /** @exception_code_dma_addr: DMA address of MIPS exception code. */
40 dma_addr_t exception_code_dma_addr;
41
42 /** @cache_policy: Cache policy for this processor. */
43 u32 cache_policy;
44
45 /** @pfn_mask: PFN mask for MIPS pagetable. */
46 u32 pfn_mask;
47};
48
49#endif /* PVR_FW_MIPS_H */
50

source code of linux/drivers/gpu/drm/imagination/pvr_fw_mips.h