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Revert "Merging in 1.0.2."

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This reverts commit 50cf3276e7.
This commit is contained in:
Geoffrey Challen
2017-01-09 22:52:13 -05:00
parent 50cf3276e7
commit e318e3171e
118 changed files with 3158 additions and 1350 deletions
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20
kern/include/cpu.h
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@@ -35,6 +35,7 @@
#include <threadlist.h>
#include <machine/vm.h> /* for TLBSHOOTDOWN_MAX */
extern unsigned num_cpus;
/*
* Per-cpu structure
@@ -74,21 +75,24 @@ struct cpu {
* Accessed by other cpus.
* Protected by the IPI lock.
*
* TLB shootdown requests made to this CPU are queued in
* c_shootdown[], with c_numshootdown holding the number of
* requests. TLBSHOOTDOWN_MAX is the maximum number that can
* be queued at once, which is machine-dependent.
* If c_numshootdown is -1 (TLBSHOOTDOWN_ALL), all mappings
* should be invalidated. This is used if more than
* TLBSHOOTDOWN_MAX mappings are going to be invalidated at
* once. TLBSHOOTDOWN_MAX is MD and chosen based on when it
* becomes more efficient just to flush the whole TLB.
*
* The contents of struct tlbshootdown are also machine-
* dependent and might reasonably be either an address space
* and vaddr pair, or a paddr, or something else.
* struct tlbshootdown is machine-dependent and might
* reasonably be either an address space and vaddr pair, or a
* paddr, or something else.
*/
uint32_t c_ipi_pending; /* One bit for each IPI number */
struct tlbshootdown c_shootdown[TLBSHOOTDOWN_MAX];
unsigned c_numshootdown;
int c_numshootdown;
struct spinlock c_ipi_lock;
};
#define TLBSHOOTDOWN_ALL (-1)
/*
* Initialization functions.
*