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authorJack Steiner <steiner@sgi.com>2009-07-27 09:36:56 -0500
committerIngo Molnar <mingo@elte.hu>2009-08-04 16:18:02 +0200
commitcc5e4fa1bd4d2f56da07f9092281afdcd2374ab9 (patch)
tree6f9e1dea14f08fae73d958f03ded3c924c4be1b4 /arch
parent6c7184b77464261b7d55583a48accbd1350923a3 (diff)
downloadlinux-cc5e4fa1bd4d2f56da07f9092281afdcd2374ab9.tar.bz2
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c31
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 ad3f0a984cab..445c210daf82 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();