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authorKartik K. Agaram <vc@akkartik.com>2021-03-03 22:09:50 -0800
committerKartik K. Agaram <vc@akkartik.com>2021-03-03 22:21:03 -0800
commit71e4f3812982dba2efb471283d310224e8db363e (patch)
treeea111a1acb8b8845dbda39c0e1b4bac1d198143b /tools/iso/kernel.soso/vmm.h
parentc6b928be29ac8cdb4e4d6e1eaa20420ff03e5a4c (diff)
downloadmu-71e4f3812982dba2efb471283d310224e8db363e.tar.gz
7842 - new directory organization
Baremetal is now the default build target and therefore has its sources
at the top-level. Baremetal programs build using the phase-2 Mu toolchain
that requires a Linux kernel. This phase-2 codebase which used to be at
the top-level is now under the linux/ directory. Finally, the phase-2 toolchain,
while self-hosting, has a way to bootstrap from a C implementation, which
is now stored in linux/bootstrap. The bootstrap C implementation uses some
literate programming tools that are now in linux/bootstrap/tools.

So the whole thing has gotten inverted. Each directory should build one
artifact and include the main sources (along with standard library). Tools
used for building it are relegated to sub-directories, even though those
tools are often useful in their own right, and have had lots of interesting
programs written using them.

A couple of things have gotten dropped in this process:
  - I had old ways to run on just a Linux kernel, or with a Soso kernel.
    No more.
  - I had some old tooling for running a single test at the cursor. I haven't
    used that lately. Maybe I'll bring it back one day.

The reorg isn't done yet. Still to do:
  - redo documentation everywhere. All the README files, all other markdown,
    particularly vocabulary.md.
  - clean up how-to-run comments at the start of programs everywhere
  - rethink what to do with the html/ directory. Do we even want to keep
    supporting it?

In spite of these shortcomings, all the scripts at the top-level, linux/
and linux/bootstrap are working. The names of the scripts also feel reasonable.
This is a good milestone to take stock at.
Diffstat (limited to 'tools/iso/kernel.soso/vmm.h')
-rw-r--r--tools/iso/kernel.soso/vmm.h48
1 files changed, 0 insertions, 48 deletions
diff --git a/tools/iso/kernel.soso/vmm.h b/tools/iso/kernel.soso/vmm.h
deleted file mode 100644
index f7955afb..00000000
--- a/tools/iso/kernel.soso/vmm.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#ifndef VMM_H
-#define VMM_H
-
-#include "common.h"
-
-typedef struct Process Process;
-typedef struct List List;
-
-extern uint32 *gKernelPageDirectory;
-
-extern uint8 gKernelPageHeapBitmap[];
-
-
-#define SET_PAGEFRAME_USED(bitmap, pageIndex)	bitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8))
-#define SET_PAGEFRAME_UNUSED(bitmap, p_addr)	bitmap[((uint32) p_addr/PAGESIZE_4M)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4M)%8))
-#define IS_PAGEFRAME_USED(bitmap, pageIndex)	(bitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8)))
-
-#define SET_PAGEHEAP_USED(pageIndex)	gKernelPageHeapBitmap[((uint32) pageIndex)/8] |= (1 << (((uint32) pageIndex)%8))
-#define SET_PAGEHEAP_UNUSED(p_addr)	gKernelPageHeapBitmap[((uint32) p_addr/PAGESIZE_4K)/8] &= ~(1 << (((uint32) p_addr/PAGESIZE_4K)%8))
-#define IS_PAGEHEAP_USED(pageIndex)	(gKernelPageHeapBitmap[((uint32) pageIndex)/8] & (1 << (((uint32) pageIndex)%8)))
-
-char* getPageFrame4M();
-void releasePageFrame4M(uint32 p_addr);
-
-uint32 *getPdFromReservedArea4K();
-void releasePdFromReservedArea4K(uint32 *);
-
-void initializeMemory(uint32 high_mem);
-
-uint32 *createPd();
-void destroyPd(uint32 *);
-uint32 *copyPd(uint32* pd);
-
-BOOL addPageToPd(uint32* pd, char *v_addr, char *p_addr, int flags);
-BOOL removePageFromPd(uint32* pd, char *v_addr, BOOL releasePageFrame);
-
-void enablePaging();
-void disablePaging();
-
-uint32 getTotalPageCount();
-uint32 getUsedPageCount();
-uint32 getFreePageCount();
-
-void initializeProcessMmap(Process* process);
-void* mapMemory(Process* process, uint32 nBytes, uint32 pAddress, List* pAddressList);
-BOOL unmapMemory(Process* process, uint32 nBytes, uint32 vAddress);
-
-#endif // VMM_H