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. */ 14 struct 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 */ 21 struct 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