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x86/platform/uv: Update UV5 MMR references in UV GRU 

Make modifications to the GRU mappings to accommodate changes for UV5.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lkml.kernel.org/r/20201005203929.148656-10-mike.travis@hpe.com
This commit is contained in:
Mike Travis 2020-10-05 15:39:25 -05:00 committed by Borislav Petkov
parent 8540b2cf0d
commit a74a7e992c
1 changed files with 24 additions and 6 deletions
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30
arch/x86/kernel/apic/x2apic_uv_x.c
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@ -82,6 +82,9 @@ static unsigned long __init uv_early_read_mmr(unsigned long addr)
static inline bool is_GRU_range(u64 start, u64 end)
{
if (!gru_start_paddr)
return false;
return start >= gru_start_paddr && end <= gru_end_paddr;
}
@ -909,13 +912,24 @@ static __init void map_high(char *id, unsigned long base, int pshift, int bshift
static __init void map_gru_high(int max_pnode)
{
union uvh_rh_gam_gru_overlay_config_u gru;
int shift = UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT;
unsigned long mask = UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK;
unsigned long base;
unsigned long mask, base;
int shift;
if (UVH_RH_GAM_GRU_OVERLAY_CONFIG) {
gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG);
shift = UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT;
mask = UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK;
} else if (UVH_RH10_GAM_GRU_OVERLAY_CONFIG) {
gru.v = uv_read_local_mmr(UVH_RH10_GAM_GRU_OVERLAY_CONFIG);
shift = UVH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT;
mask = UVH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_MASK;
} else {
pr_err("UV: GRU unavailable (no MMR)\n");
return;
}
gru.v = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG);
if (!gru.s.enable) {
pr_info("UV: GRU disabled\n");
pr_info("UV: GRU disabled (by BIOS)\n");
return;
}
@ -1288,7 +1302,11 @@ static void __init uv_init_hub_info(struct uv_hub_info_s *hi)
/* Show system specific info: */
pr_info("UV: N:%d M:%d m_shift:%d n_lshift:%d\n", hi->n_val, hi->m_val, hi->m_shift, hi->n_lshift);
pr_info("UV: gpa_mask/shift:0x%lx/%d pnode_mask:0x%x apic_pns:%d\n", hi->gpa_mask, hi->gpa_shift, hi->pnode_mask, hi->apic_pnode_shift);
pr_info("UV: mmr_base/shift:0x%lx/%ld gru_base/shift:0x%lx/%ld\n", hi->global_mmr_base, hi->global_mmr_shift, hi->global_gru_base, hi->global_gru_shift);
pr_info("UV: mmr_base/shift:0x%lx/%ld\n", hi->global_mmr_base, hi->global_mmr_shift);
if (hi->global_gru_base)
pr_info("UV: gru_base/shift:0x%lx/%ld\n",
hi->global_gru_base, hi->global_gru_shift);
pr_info("UV: gnode_upper:0x%lx gnode_extra:0x%x\n", hi->gnode_upper, hi->gnode_extra);
}