diff options
| author | Robin Holt <holt@sgi.com> | 2009-10-15 17:40:00 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-16 08:18:34 +0200 |
| commit | 036ed8ba61b72c19dc5759446d4fe0844aa88255 (patch) | |
| tree | 956331ab7308de6c96e5c5b01806f26a8f91f59b /arch/x86/kernel/tlb_uv.c | |
| parent | a5912f6b3e20c137172460e6d4dd180866c00963 (diff) | |
| download | lwn-036ed8ba61b72c19dc5759446d4fe0844aa88255.tar.gz lwn-036ed8ba61b72c19dc5759446d4fe0844aa88255.zip | |
x86, UV: Fix information in __uv_hub_info structure
A few parts of the uv_hub_info structure are initialized
incorrectly.
- n_val is being loaded with m_val.
- gpa_mask is initialized with a bytes instead of an unsigned long.
- Handle the case where none of the alias registers are used.
Lastly I converted the bau over to using the uv_hub_info->m_val
which is the correct value.
Without this patch, booting a large configuration hits a
problem where the upper bits of the gnode affect the pnode
and the bau will not operate.
Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Jack Steiner <steiner@sgi.com>
Cc: Cliff Whickman <cpw@sgi.com>
Cc: stable@kernel.org
LKML-Reference: <20091015224946.396355000@alcatraz.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/tlb_uv.c')
| -rw-r--r-- | arch/x86/kernel/tlb_uv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 503c1f2e8835..f99fb6acfe34 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -843,8 +843,8 @@ static int __init uv_bau_init(void) GFP_KERNEL, cpu_to_node(cur_cpu)); uv_bau_retry_limit = 1; - uv_nshift = uv_hub_info->n_val; - uv_mmask = (1UL << uv_hub_info->n_val) - 1; + uv_nshift = uv_hub_info->m_val; + uv_mmask = (1UL << uv_hub_info->m_val) - 1; nblades = uv_num_possible_blades(); uv_bau_table_bases = (struct bau_control **) |