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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
 * Adapted for the alpha wildfire architecture Jan 2001.
 */
#ifndef _ASM_MMZONE_H_
#define _ASM_MMZONE_H_

#include <asm/smp.h>

struct bootmem_data_t; /* stupid forward decl. */

/*
 * Following are macros that are specific to this numa platform.
 */

extern pg_data_t node_data[];

#define alpha_pa_to_nid(pa)		\
        (alpha_mv.pa_to_nid 		\
	 ? alpha_mv.pa_to_nid(pa)	\
	 : (0))
#define node_mem_start(nid)		\
        (alpha_mv.node_mem_start 	\
	 ? alpha_mv.node_mem_start(nid) \
	 : (0UL))
#define node_mem_size(nid)		\
        (alpha_mv.node_mem_size 	\
	 ? alpha_mv.node_mem_size(nid) 	\
	 : ((nid) ? (0UL) : (~0UL)))

#define pa_to_nid(pa)		alpha_pa_to_nid(pa)
#define NODE_DATA(nid)		(&node_data[(nid)])

#define node_localnr(pfn, nid)	((pfn) - NODE_DATA(nid)->node_start_pfn)

#if 1
#define PLAT_NODE_DATA_LOCALNR(p, n)	\
	(((p) >> PAGE_SHIFT) - PLAT_NODE_DATA(n)->gendata.node_start_pfn)
#else
static inline unsigned long
PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
{
	unsigned long temp;
	temp = p >> PAGE_SHIFT;
	return temp - PLAT_NODE_DATA(n)->gendata.node_start_pfn;
}
#endif

#ifdef CONFIG_DISCONTIGMEM

/*
 * Following are macros that each numa implementation must define.
 */

/*
 * Given a kernel address, find the home node of the underlying memory.
 */
#define kvaddr_to_nid(kaddr)	pa_to_nid(__pa(kaddr))

/*
 * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
 * and returns the kaddr corresponding to first physical page in the
 * node's mem_map.
 */
#define LOCAL_BASE_ADDR(kaddr)						  \
    ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn  \
			 << PAGE_SHIFT))

/* XXX: FIXME -- nyc */
#define kern_addr_valid(kaddr)	(0)

#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)

#define pmd_page(pmd)		(pfn_to_page(pmd_val(pmd) >> 32))
#define pgd_page(pgd)		(pfn_to_page(pgd_val(pgd) >> 32))
#define pte_pfn(pte)		(pte_val(pte) >> 32)

#define mk_pte(page, pgprot)						     \
({								 	     \
	pte_t pte;                                                           \
	unsigned long pfn;                                                   \
									     \
	pfn = page_to_pfn(page) << 32; \
	pte_val(pte) = pfn | pgprot_val(pgprot);			     \
									     \
	pte;								     \
})

#define pte_page(x)							\
({									\
       	unsigned long kvirt;						\
	struct page * __xx;						\
									\
	kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT));	\
	__xx = virt_to_page(kvirt);					\
									\
	__xx;                                                           \
})

#define page_to_pa(page)						\
	(page_to_pfn(page) << PAGE_SHIFT)

#define pfn_to_nid(pfn)		pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
#define pfn_valid(pfn)							\
	(((pfn) - node_start_pfn(pfn_to_nid(pfn))) <			\
	 node_spanned_pages(pfn_to_nid(pfn)))					\

#define virt_addr_valid(kaddr)	pfn_valid((__pa(kaddr) >> PAGE_SHIFT))

#endif /* CONFIG_DISCONTIGMEM */

#endif /* _ASM_MMZONE_H_ */

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Name Type Size Permission Actions
Kbuild File 320 B 0644
a.out-core.h File 2.41 KB 0644
a.out.h File 574 B 0644
agp.h File 457 B 0644
agp_backend.h File 948 B 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 405 B 0644
atomic.h File 9.15 KB 0644
barrier.h File 2.17 KB 0644
bitops.h File 8.83 KB 0644
bug.h File 571 B 0644
bugs.h File 294 B 0644
cache.h File 507 B 0644
cacheflush.h File 2.68 KB 0644
checksum.h File 1.93 KB 0644
cmpxchg.h File 1.67 KB 0644
compiler.h File 498 B 0644
console.h File 1.06 KB 0644
core_apecs.h File 16.91 KB 0644
core_cia.h File 15.43 KB 0644
core_irongate.h File 6.63 KB 0644
core_lca.h File 11.36 KB 0644
core_marvel.h File 9.15 KB 0644
core_mcpcia.h File 11.45 KB 0644
core_polaris.h File 2.92 KB 0644
core_t2.h File 19.13 KB 0644
core_titan.h File 11.2 KB 0644
core_tsunami.h File 8.29 KB 0644
core_wildfire.h File 8.45 KB 0644
delay.h File 264 B 0644
device.h File 129 B 0644
div64.h File 31 B 0644
dma-mapping.h File 276 B 0644
dma.h File 12.37 KB 0644
elf.h File 5.71 KB 0644
emergency-restart.h File 149 B 0644
err_common.h File 3.24 KB 0644
err_ev6.h File 116 B 0644
err_ev7.h File 4.37 KB 0644
extable.h File 1.42 KB 0644
floppy.h File 3.07 KB 0644
fpu.h File 1.78 KB 0644
ftrace.h File 12 B 0644
futex.h File 1.97 KB 0644
gct.h File 1.02 KB 0644
hardirq.h File 223 B 0644
hw_irq.h File 302 B 0644
hwrpb.h File 6.9 KB 0644
io.h File 15.03 KB 0644
io_trivial.h File 3.07 KB 0644
irq.h File 2.31 KB 0644
irq_regs.h File 34 B 0644
irqflags.h File 1.17 KB 0644
jensen.h File 8.39 KB 0644
kdebug.h File 32 B 0644
kmap_types.h File 265 B 0644
linkage.h File 256 B 0644
local.h File 2.59 KB 0644
local64.h File 33 B 0644
machvec.h File 3.68 KB 0644
mc146818rtc.h File 680 B 0644
mce.h File 4.04 KB 0644
mmu.h File 203 B 0644
mmu_context.h File 7.09 KB 0644
mmzone.h File 2.98 KB 0644
module.h File 329 B 0644
page.h File 2.46 KB 0644
pal.h File 5.01 KB 0644
param.h File 284 B 0644
parport.h File 536 B 0644
pci.h File 2.87 KB 0644
percpu.h File 527 B 0644
perf_event.h File 105 B 0644
pgalloc.h File 1.82 KB 0644
pgtable.h File 13.17 KB 0644
processor.h File 2.07 KB 0644
ptrace.h File 754 B 0644
rwsem.h File 4.62 KB 0644
segment.h File 132 B 0644
serial.h File 1.01 KB 0644
sfp-machine.h File 2.86 KB 0644
shmparam.h File 191 B 0644
signal.h File 627 B 0644
smp.h File 1.34 KB 0644
socket.h File 310 B 0644
special_insns.h File 925 B 0644
spinlock.h File 2.85 KB 0644
spinlock_types.h File 413 B 0644
string.h File 2.42 KB 0644
switch_to.h File 406 B 0644
syscall.h File 235 B 0644
termios.h File 2.98 KB 0644
thread_info.h File 3.63 KB 0644
timex.h File 827 B 0644
tlb.h File 473 B 0644
tlbflush.h File 3.37 KB 0644
topology.h File 957 B 0644
types.h File 143 B 0644
uaccess.h File 9.56 KB 0644
ucontext.h File 348 B 0644
unaligned.h File 340 B 0644
unistd.h File 494 B 0644
user.h File 2.14 KB 0644
vga.h File 2 KB 0644
word-at-a-time.h File 1.34 KB 0644
wrperfmon.h File 2.56 KB 0644
xchg.h File 5.74 KB 0644
xor.h File 21.71 KB 0644