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* [PATCH] x86, UV: Delete mapping of MMR rangs mapped by BIOS
@ 2009-07-27 14:36 ` Jack Steiner
  0 siblings, 0 replies; 3+ messages in thread
From: Jack Steiner @ 2009-07-27 14:36 UTC (permalink / raw)
  To: mingo, tglx; +Cc: linux-mm, linux-kernel

The UV BIOS has added additional MMR ranges that
are mapped via EFI virtual mode mappings. These ranges
should be deleted from ranges mapped by uv_system_init().


Signed-off-by: Jack Steiner <steiner@sgi.com>

---
 arch/x86/kernel/apic/x2apic_uv_x.c |   31 +------------------------------
 1 file changed, 1 insertion(+), 30 deletions(-)

Index: linux/arch/x86/kernel/apic/x2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c	2009-07-23 09:44:41.000000000 -0500
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c	2009-07-23 09:45:34.000000000 -0500
@@ -363,12 +363,6 @@ static __init void get_lowmem_redirect(u
 	panic("get_lowmem_redirect: no match!");
 }
 
-static __init void map_low_mmrs(void)
-{
-	init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE);
-	init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE);
-}
-
 enum map_type {map_wb, map_uc};
 
 static __init void map_high(char *id, unsigned long base, int shift,
@@ -396,26 +390,6 @@ static __init void map_gru_high(int max_
 		map_high("GRU", gru.s.base, shift, max_pnode, map_wb);
 }
 
-static __init void map_config_high(int max_pnode)
-{
-	union uvh_rh_gam_cfg_overlay_config_mmr_u cfg;
-	int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR);
-	if (cfg.s.enable)
-		map_high("CONFIG", cfg.s.base, shift, max_pnode, map_uc);
-}
-
-static __init void map_mmr_high(int max_pnode)
-{
-	union uvh_rh_gam_mmr_overlay_config_mmr_u mmr;
-	int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR);
-	if (mmr.s.enable)
-		map_high("MMR", mmr.s.base, shift, max_pnode, map_uc);
-}
-
 static __init void map_mmioh_high(int max_pnode)
 {
 	union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh;
@@ -567,8 +541,6 @@ void __init uv_system_init(void)
 	unsigned long mmr_base, present, paddr;
 	unsigned short pnode_mask;
 
-	map_low_mmrs();
-
 	m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
 	m_val = m_n_config.s.m_skt;
 	n_val = m_n_config.s.n_skt;
@@ -668,11 +640,10 @@ void __init uv_system_init(void)
 		pnode = (paddr >> m_val) & pnode_mask;
 		blade = boot_pnode_to_blade(pnode);
 		uv_node_to_blade[nid] = blade;
+		max_pnode = max(pnode, max_pnode);
 	}
 
 	map_gru_high(max_pnode);
-	map_mmr_high(max_pnode);
-	map_config_high(max_pnode);
 	map_mmioh_high(max_pnode);
 
 	uv_cpu_init();

^ permalink raw reply	[flat|nested] 3+ messages in thread
* [PATCH] x86, UV: Delete mapping of MMR rangs mapped by BIOS
@ 2009-07-27 14:36 ` Jack Steiner
  0 siblings, 0 replies; 3+ messages in thread
From: Jack Steiner @ 2009-07-27 14:36 UTC (permalink / raw)
  To: mingo, tglx; +Cc: linux-mm, linux-kernel

The UV BIOS has added additional MMR ranges that
are mapped via EFI virtual mode mappings. These ranges
should be deleted from ranges mapped by uv_system_init().


Signed-off-by: Jack Steiner <steiner@sgi.com>

---
 arch/x86/kernel/apic/x2apic_uv_x.c |   31 +------------------------------
 1 file changed, 1 insertion(+), 30 deletions(-)

Index: linux/arch/x86/kernel/apic/x2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c	2009-07-23 09:44:41.000000000 -0500
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c	2009-07-23 09:45:34.000000000 -0500
@@ -363,12 +363,6 @@ static __init void get_lowmem_redirect(u
 	panic("get_lowmem_redirect: no match!");
 }
 
-static __init void map_low_mmrs(void)
-{
-	init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE);
-	init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE);
-}
-
 enum map_type {map_wb, map_uc};
 
 static __init void map_high(char *id, unsigned long base, int shift,
@@ -396,26 +390,6 @@ static __init void map_gru_high(int max_
 		map_high("GRU", gru.s.base, shift, max_pnode, map_wb);
 }
 
-static __init void map_config_high(int max_pnode)
-{
-	union uvh_rh_gam_cfg_overlay_config_mmr_u cfg;
-	int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR);
-	if (cfg.s.enable)
-		map_high("CONFIG", cfg.s.base, shift, max_pnode, map_uc);
-}
-
-static __init void map_mmr_high(int max_pnode)
-{
-	union uvh_rh_gam_mmr_overlay_config_mmr_u mmr;
-	int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR);
-	if (mmr.s.enable)
-		map_high("MMR", mmr.s.base, shift, max_pnode, map_uc);
-}
-
 static __init void map_mmioh_high(int max_pnode)
 {
 	union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh;
@@ -567,8 +541,6 @@ void __init uv_system_init(void)
 	unsigned long mmr_base, present, paddr;
 	unsigned short pnode_mask;
 
-	map_low_mmrs();
-
 	m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
 	m_val = m_n_config.s.m_skt;
 	n_val = m_n_config.s.n_skt;
@@ -668,11 +640,10 @@ void __init uv_system_init(void)
 		pnode = (paddr >> m_val) & pnode_mask;
 		blade = boot_pnode_to_blade(pnode);
 		uv_node_to_blade[nid] = blade;
+		max_pnode = max(pnode, max_pnode);
 	}
 
 	map_gru_high(max_pnode);
-	map_mmr_high(max_pnode);
-	map_config_high(max_pnode);
 	map_mmioh_high(max_pnode);
 
 	uv_cpu_init();

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^ permalink raw reply	[flat|nested] 3+ messages in thread
* [tip:x86/urgent] x86, UV: Delete mapping of MMR rangs mapped by BIOS
  2009-07-27 14:36 ` Jack Steiner
  (?)
@ 2009-08-04 15:31 ` tip-bot for Jack Steiner
  -1 siblings, 0 replies; 3+ messages in thread
From: tip-bot for Jack Steiner @ 2009-08-04 15:31 UTC (permalink / raw)
  To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, steiner, tglx, mingo

Commit-ID:  cc5e4fa1bd4d2f56da07f9092281afdcd2374ab9
Gitweb:     http://git.kernel.org/tip/cc5e4fa1bd4d2f56da07f9092281afdcd2374ab9
Author:     Jack Steiner <steiner@sgi.com>
AuthorDate: Mon, 27 Jul 2009 09:36:56 -0500
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 4 Aug 2009 16:18:02 +0200

x86, UV: Delete mapping of MMR rangs mapped by BIOS

The UV BIOS has added additional MMR ranges that are mapped via
EFI virtual mode mappings. These ranges should be deleted from
ranges mapped by uv_system_init().

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
LKML-Reference: <20090727143656.GA7698@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 arch/x86/kernel/apic/x2apic_uv_x.c |   31 +------------------------------
 1 files changed, 1 insertions(+), 30 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index ad3f0a9..445c210 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -362,12 +362,6 @@ static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
 	BUG();
 }
 
-static __init void map_low_mmrs(void)
-{
-	init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE);
-	init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE);
-}
-
 enum map_type {map_wb, map_uc};
 
 static __init void map_high(char *id, unsigned long base, int shift,
@@ -395,26 +389,6 @@ static __init void map_gru_high(int max_pnode)
 		map_high("GRU", gru.s.base, shift, max_pnode, map_wb);
 }
 
-static __init void map_config_high(int max_pnode)
-{
-	union uvh_rh_gam_cfg_overlay_config_mmr_u cfg;
-	int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR);
-	if (cfg.s.enable)
-		map_high("CONFIG", cfg.s.base, shift, max_pnode, map_uc);
-}
-
-static __init void map_mmr_high(int max_pnode)
-{
-	union uvh_rh_gam_mmr_overlay_config_mmr_u mmr;
-	int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT;
-
-	mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR);
-	if (mmr.s.enable)
-		map_high("MMR", mmr.s.base, shift, max_pnode, map_uc);
-}
-
 static __init void map_mmioh_high(int max_pnode)
 {
 	union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh;
@@ -566,8 +540,6 @@ void __init uv_system_init(void)
 	unsigned long mmr_base, present, paddr;
 	unsigned short pnode_mask;
 
-	map_low_mmrs();
-
 	m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
 	m_val = m_n_config.s.m_skt;
 	n_val = m_n_config.s.n_skt;
@@ -667,11 +639,10 @@ void __init uv_system_init(void)
 		pnode = (paddr >> m_val) & pnode_mask;
 		blade = boot_pnode_to_blade(pnode);
 		uv_node_to_blade[nid] = blade;
+		max_pnode = max(pnode, max_pnode);
 	}
 
 	map_gru_high(max_pnode);
-	map_mmr_high(max_pnode);
-	map_config_high(max_pnode);
 	map_mmioh_high(max_pnode);
 
 	uv_cpu_init();

^ permalink raw reply related	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-08-04 15:32 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-07-27 14:36 [PATCH] x86, UV: Delete mapping of MMR rangs mapped by BIOS Jack Steiner
2009-07-27 14:36 ` Jack Steiner
2009-08-04 15:31 ` [tip:x86/urgent] " tip-bot for Jack Steiner

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