iCE40/nextpnr - clone of git://git.panaceas.org/iCE40/nextpnr

	Commit message (Collapse)	Author	Age	Files	Lines
*	Update pybind11 to version 2.6.1	Miodrag Milanovic	2021-01-02	3	-26/+157
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*	Add pybind11 2.5 source	Miodrag Milanovic	2020-07-23	4	-0/+713

#ifndef __X86_32_PAGE_H__ #define __X86_32_PAGE_H__ #define L1_PAGETABLE_SHIFT 12 #define L2_PAGETABLE_SHIFT 21 #define L3_PAGETABLE_SHIFT 30 #define PAGE_SHIFT L1_PAGETABLE_SHIFT #define SUPERPAGE_SHIFT L2_PAGETABLE_SHIFT #define ROOT_PAGETABLE_SHIFT L3_PAGETABLE_SHIFT #define PAGETABLE_ORDER 9 #define L1_PAGETABLE_ENTRIES (1<<PAGETABLE_ORDER) #define L2_PAGETABLE_ENTRIES (1<<PAGETABLE_ORDER) #define L3_PAGETABLE_ENTRIES 4 #define ROOT_PAGETABLE_ENTRIES L3_PAGETABLE_ENTRIES #define SUPERPAGE_ORDER PAGETABLE_ORDER /* * Architecturally, physical addresses may be up to 52 bits. However, the * page-frame number (pfn) of a 52-bit address will not fit into a 32-bit * word. Instead we treat bits 44-51 of a pte as flag bits which are never * allowed to be set by a guest kernel. This 'limits' us to addressing 16TB * of physical memory on a 32-bit PAE system. */ #define PADDR_BITS 44 #define PADDR_MASK ((1ULL << PADDR_BITS)-1) #define __PAGE_OFFSET (0xFF000000) #define __XEN_VIRT_START __PAGE_OFFSET #define VADDR_BITS 32 #define VADDR_MASK (~0UL) #define is_canonical_address(x) 1 /* Given a virtual address, get an entry offset into a linear page table. */ #define l1_linear_offset(_a) ((_a) >> L1_PAGETABLE_SHIFT) #define l2_linear_offset(_a) ((_a) >> L2_PAGETABLE_SHIFT) #ifndef __ASSEMBLY__ #include <xen/config.h> #include <asm/types.h> #define __mfn_valid(mfn) ({ \ unsigned long __m_f_n = (mfn); \ likely(__m_f_n < max_page) && \ likely(test_bit(pfn_to_pdx(__m_f_n) / PDX_GROUP_COUNT, pdx_group_valid)); \ }) #define max_pdx max_page #define pfn_to_pdx(pfn) (pfn) #define pdx_to_pfn(pdx) (pdx) #define virt_to_pdx(va) virt_to_mfn(va) #define pdx_to_virt(pdx) mfn_to_virt(pdx) #define pfn_to_sdx(pfn) ((pfn)>>(SUPERPAGE_SHIFT-PAGE_SHIFT)) #define sdx_to_pfn(sdx) ((sdx)<<(SUPERPAGE_SHIFT-PAGE_SHIFT)) static inline unsigned long __virt_to_maddr(unsigned long va) { ASSERT(va >= DIRECTMAP_VIRT_START && va < DIRECTMAP_VIRT_END); return va - DIRECTMAP_VIRT_START; } static inline void *__maddr_to_virt(unsigned long ma) { ASSERT(ma < DIRECTMAP_VIRT_END - DIRECTMAP_VIRT_START); return (void *)(ma + DIRECTMAP_VIRT_START); } /* read access (should only be used for debug printk's) */ typedef u64 intpte_t; #define PRIpte "016llx" typedef struct { intpte_t l1; } l1_pgentry_t; typedef struct { intpte_t l2; } l2_pgentry_t; typedef struct { intpte_t l3; } l3_pgentry_t; typedef l3_pgentry_t root_pgentry_t; extern unsigned int PAGE_HYPERVISOR; extern unsigned int PAGE_HYPERVISOR_NOCACHE; #endif #define pte_read_atomic(ptep) atomic_read64(ptep) #define pte_write_atomic(ptep, pte) atomic_write64(ptep, pte) #define pte_write(ptep, pte) do { \ u32 *__ptep_words = (u32 *)(ptep); \ atomic_write32(&__ptep_words[0], 0); \ wmb(); \ atomic_write32(&__ptep_words[1], (pte) >> 32); \ wmb(); \ atomic_write32(&__ptep_words[0], (pte) >> 0); \ } while ( 0 ) /* root table */ #define root_get_pfn l3e_get_pfn #define root_get_flags l3e_get_flags #define root_get_intpte l3e_get_intpte #define root_empty l3e_empty #define root_from_paddr l3e_from_paddr #define PGT_root_page_table PGT_l3_page_table /* misc */ #define is_guest_l1_slot(s) (1) #define is_guest_l2_slot(d,t,s) \ ( !((t) & PGT_pae_xen_l2) || \ ((s) < (L2_PAGETABLE_FIRST_XEN_SLOT & (L2_PAGETABLE_ENTRIES - 1))) ) #define is_guest_l3_slot(s) (1) /* * PTE pfn and flags: * 32-bit pfn = (pte[43:12]) * 32-bit flags = (pte[63:44],pte[11:0]) */ /* Extract flags into 32-bit integer, or turn 32-bit flags into a pte mask. */ #define get_pte_flags(x) (((int)((x) >> 32) & ~0xFFF) | ((int)(x) & 0xFFF)) #define put_pte_flags(x) (((intpte_t)((x) & ~0xFFF) << 32) | ((x) & 0xFFF)) /* Bit 31 of a 32-bit flag mask. This corresponds to bit 63 of a pte.*/ #define _PAGE_NX_BIT (1U<<31) #endif /* __X86_32_PAGE_H__ */ /* * Local variables: * mode: C * c-set-style: "BSD" * c-basic-offset: 4 * tab-width: 4 * indent-tabs-mode: nil * End: */