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x86, uv, uv3: Update Hub Info for SGI UV3
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This patch updates the UV HUB info for UV3.  The "is_uv3_hub" and
"is_uvx_hub" (UV2 or UV3) functions are added as well as the addresses
and sizes of the MMR regions for UV3.

Signed-off-by: Mike Travis <travis@sgi.com>
Link: http://lkml.kernel.org/r/20130211194508.610723192@gulag1.americas.sgi.com
Acked-by: Russ Anderson <rja@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Mike Travis authored and H. Peter Anvin committed Feb 12, 2013
1 parent 526018b commit 6edbd47
Showing 1 changed file with 36 additions and 8 deletions.
44 changes: 36 additions & 8 deletions arch/x86/include/asm/uv/uv_hub.h
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
*
* SGI UV architectural definitions
*
* Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2007-2013 Silicon Graphics, Inc. All rights reserved.
*/

#ifndef _ASM_X86_UV_UV_HUB_H
Expand Down Expand Up @@ -175,13 +175,31 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
*/
#define UV1_HUB_REVISION_BASE 1
#define UV2_HUB_REVISION_BASE 3
#define UV3_HUB_REVISION_BASE 5

static inline int is_uv1_hub(void)
{
return uv_hub_info->hub_revision < UV2_HUB_REVISION_BASE;
}

static inline int is_uv2_hub(void)
{
return ((uv_hub_info->hub_revision >= UV2_HUB_REVISION_BASE) &&
(uv_hub_info->hub_revision < UV3_HUB_REVISION_BASE));
}

static inline int is_uv3_hub(void)
{
return uv_hub_info->hub_revision >= UV3_HUB_REVISION_BASE;
}

static inline int is_uv_hub(void)
{
return uv_hub_info->hub_revision;
}

/* code common to uv2 and uv3 only */
static inline int is_uvx_hub(void)
{
return uv_hub_info->hub_revision >= UV2_HUB_REVISION_BASE;
}
Expand Down Expand Up @@ -230,14 +248,23 @@ union uvh_apicid {
#define UV2_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
#define UV2_GLOBAL_MMR32_SIZE (32UL * 1024 * 1024)

#define UV_LOCAL_MMR_BASE (is_uv1_hub() ? UV1_LOCAL_MMR_BASE \
: UV2_LOCAL_MMR_BASE)
#define UV_GLOBAL_MMR32_BASE (is_uv1_hub() ? UV1_GLOBAL_MMR32_BASE \
: UV2_GLOBAL_MMR32_BASE)
#define UV_LOCAL_MMR_SIZE (is_uv1_hub() ? UV1_LOCAL_MMR_SIZE : \
UV2_LOCAL_MMR_SIZE)
#define UV3_LOCAL_MMR_BASE 0xfa000000UL
#define UV3_GLOBAL_MMR32_BASE 0xfc000000UL
#define UV3_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
#define UV3_GLOBAL_MMR32_SIZE (32UL * 1024 * 1024)

#define UV_LOCAL_MMR_BASE (is_uv1_hub() ? UV1_LOCAL_MMR_BASE : \
(is_uv2_hub() ? UV2_LOCAL_MMR_BASE : \
UV3_LOCAL_MMR_BASE))
#define UV_GLOBAL_MMR32_BASE (is_uv1_hub() ? UV1_GLOBAL_MMR32_BASE :\
(is_uv2_hub() ? UV2_GLOBAL_MMR32_BASE :\
UV3_GLOBAL_MMR32_BASE))
#define UV_LOCAL_MMR_SIZE (is_uv1_hub() ? UV1_LOCAL_MMR_SIZE : \
(is_uv2_hub() ? UV2_LOCAL_MMR_SIZE : \
UV3_LOCAL_MMR_SIZE))
#define UV_GLOBAL_MMR32_SIZE (is_uv1_hub() ? UV1_GLOBAL_MMR32_SIZE :\
UV2_GLOBAL_MMR32_SIZE)
(is_uv2_hub() ? UV2_GLOBAL_MMR32_SIZE :\
UV3_GLOBAL_MMR32_SIZE))
#define UV_GLOBAL_MMR64_BASE (uv_hub_info->global_mmr_base)

#define UV_GLOBAL_GRU_MMR_BASE 0x4000000
Expand Down Expand Up @@ -599,6 +626,7 @@ static inline void uv_hub_send_ipi(int pnode, int apicid, int vector)
* 1 - UV1 rev 1.0 initial silicon
* 2 - UV1 rev 2.0 production silicon
* 3 - UV2 rev 1.0 initial silicon
* 5 - UV3 rev 1.0 initial silicon
*/
static inline int uv_get_min_hub_revision_id(void)
{
Expand Down

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