asm/uv/uv_hub.h

23  *	M       - The low M bits of a physical address represent the offset
28  * 	N	- Number of bits in the node portion of a socket physical
31  * 	NASID   - network ID of a router, Mbrick or Cbrick. Nasid values of
33  * 		  equal to 0. Most addressing macros that target UV hub chips
34  * 		  right shift the NASID by 1 to exclude the always-zero bit.
37  *	GNODE   - NASID right shifted by 1 bit. Most mmrs contain gnodes instead
40  * 	PNODE   - the low N bits of the GNODE. The PNODE is the most useful variant
45  *  +--------------------------------+---------------------+
47  *  +--------------------------------+---------------------+
48  *          |<-------53 - M bits --->|<--------M bits ----->
50  *	M - number of node offset bits (35 .. 40)
53  *  Memory/UV-HUB Processor Socket Address Format:
54  *  +----------------+---------------+---------------------+
56  *  +----------------+---------------+---------------------+
57  *                   <--- N bits --->|<--------M bits ----->
59  *	M - number of node offset bits (35 .. 40)
60  *	N - number of PNODE bits (0 .. 10)
73  * This value is also the value of the maximum number of non-router NASIDs
93  * frequently referenced and are kept in the per-cpu data areas of each cpu.
117  * 	in this file - not by other kernel code.
118  * 		n -  NASID (full 15-bit global nasid)
119  * 		g -  GNODE (full 15-bit global nasid, right shifted 1)
120  * 		p -  PNODE (local part of nsids, right shifted 1)
122 #define UV_NASID_TO_PNODE(n)		(((n) >> 1) & uv_hub_info->pnode_mask)
123 #define UV_PNODE_TO_NASID(p)		(((p) << 1) | uv_hub_info->gnode_upper)
127 #define UV_GLOBAL_MMR64_BASE		(uv_hub_info->global_mmr_base)
144 /* socket phys RAM --> UV global physical address */
147 	if (paddr < uv_hub_info->lowmem_remap_top)  in uv_soc_phys_ram_to_gpa()
148 		paddr += uv_hub_info->lowmem_remap_base;  in uv_soc_phys_ram_to_gpa()
149 	return paddr | uv_hub_info->gnode_upper;  in uv_soc_phys_ram_to_gpa()
153 /* socket virtual --> UV global physical address */
156 	return __pa(v) | uv_hub_info->gnode_upper;  in uv_gpa()
159 /* socket virtual --> UV global physical address */
165 /* UV global physical address --> socket virtual */
168 	return __va(gpa & uv_hub_info->gpa_mask);  in uv_va()
171 /* pnode, offset --> socket virtual */
174 	return __va(((unsigned long)pnode << uv_hub_info->m_val) | offset);  in uv_pnode_offset_to_vaddr()
248 /* Blade-local cpu number of current cpu. Numbered 0 .. <# cpus on the blade> */
254 /* Blade number of current cpu. Numnbered 0 .. <#blades -1> */