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During system boot, the system-font is loaded by [[NS]] to LINEAR-memory(in the original 0x14000000 vmem region) which always gets allocated at SYSTEM_memregion+0. Due to it being located there, all of this is GPU accessible. The [[BCFNT]] is loaded from the font title for the system region into that memory. During loading, the font-data is modified: the magic-num at fontdata+0 is changed from "CFNT" to "CFNU", and all file offsets are converted to addresses in this allocated linearmem. Processes can get the sharedmem_handle+vaddr for mapping the sharedmem for this via [[NS and APT Services|APT:GetSharedFont]].
During system boot, the system-font is loaded by [[NS]] to LINEAR-memory(in the original 0x14000000 vmem region) which always gets allocated at SYSTEM_memregion+0. Due to it being located there, all of this is GPU accessible. The [[BCFNT]] is loaded from the font title for the system region into that memory. During loading, the font-data is modified: the magic-num at fontdata+0 is changed from "CFNT" to "CFNU", and all file offsets are converted to addresses in this allocated linearmem. Processes can get the sharedmem_handle+vaddr for mapping the sharedmem for this via [[NS and APT Services|APT:GetSharedFont]].
With font-data title-version v0 for USA/EUR/JPN, the size of this entire sharedmem is 0x332000-bytes.
Shared mem structure:
Shared mem structure: