Lines Matching full:wb
19 WB Write-back (cacheable)
24 System memory typically uses the WB attribute. The UC attribute is
34 support either WB or UC access to main memory, while others support
35 only WB access.
82 and WB regions.
100 mappings may be either WB or UC. If the region being mapped
163 WB, we should use that (granules that are partially reserved
166 If the granule contains non-WB memory, but we can cover the
182 succeed. It may create either WB or UC user mappings, depending
191 0x00000-0x9FFFF WB only
193 0xC0000-0xFFFFF WB only
197 so it is safe to use WB mappings.
201 WB-only memory, but since UC is non-speculative, the processor will
202 never generate an uncacheable reference to the WB-only areas unless
209 same attributes, we can allow the mmap (and we will prefer WB if
213 If EFI reports the range as partly WB and partly UC (as on sx[12]000
226 0x00000-0xFFFFF WB only (no VGA MMIO hole)
236 at 0xA0000 prevents use of a WB granule. The UC mapping causes
239 We should use WB page table mappings to avoid covering the VGA