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Viewing changes to arch/x86/include/asm/uv/uv_hub.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-04kado7d1u2er2rl
Tags: 3.2.0-16.25
Add new lowlatency kernel flavour

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Lines of Context:
arch/x86/include/asm/uv/uv_hub.h
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/* UV global physical address --> socket phys RAM */
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static inline unsigned long uv_gpa_to_soc_phys_ram(unsigned long gpa)
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{
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        unsigned long paddr = gpa & uv_hub_info->gpa_mask;
 
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        unsigned long paddr;
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        unsigned long remap_base = uv_hub_info->lowmem_remap_base;
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        unsigned long remap_top =  uv_hub_info->lowmem_remap_top;
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        gpa = ((gpa << uv_hub_info->m_shift) >> uv_hub_info->m_shift) |
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                ((gpa >> uv_hub_info->n_lshift) << uv_hub_info->m_val);
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        gpa = gpa & uv_hub_info->gpa_mask;
 
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        paddr = gpa & uv_hub_info->gpa_mask;
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        if (paddr >= remap_base && paddr < remap_base + remap_top)
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                paddr -= remap_base;
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        return paddr;