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x86/platform/uv: Introduce helper function uv_pnode_to_socket.

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Add and use uv_pnode_to_socket() function, which parallels other
helper functions in here, and will enable avoiding duplicate code
in an upcoming patch.

Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20230519190752.3297140-3-steve.wahl%40hpe.com
This commit is contained in:
Steve Wahl
2023-05-19 14:07:46 -05:00
committed by Dave Hansen
parent fd27bea340
commit 8c646cee0a
1 changed files with 9 additions and 3 deletions
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12
arch/x86/include/asm/uv/uv_hub.h
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@@ -519,18 +519,24 @@ static inline int uv_socket_to_node(int socket)
return _uv_socket_to_node(socket, uv_hub_info->socket_to_node);
}
static inline int uv_pnode_to_socket(int pnode)
{
unsigned short *p2s = uv_hub_info->pnode_to_socket;
return p2s ? p2s[pnode - uv_hub_info->min_pnode] : pnode;
}
/* pnode, offset --> socket virtual */
static inline void *uv_pnode_offset_to_vaddr(int pnode, unsigned long offset)
{
unsigned int m_val = uv_hub_info->m_val;
unsigned long base;
unsigned short sockid, node, *p2s;
unsigned short sockid, node;
if (m_val)
return __va(((unsigned long)pnode << m_val) | offset);
p2s = uv_hub_info->pnode_to_socket;
sockid = p2s ? p2s[pnode - uv_hub_info->min_pnode] : pnode;
sockid = uv_pnode_to_socket(pnode);
node = uv_socket_to_node(sockid);
/* limit address of previous socket is our base, except node 0 is 0 */