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| author | Gabe Black <gabeblack@google.com> | 2019-03-25 18:04:50 -0700 |
|---|---|---|
| committer | Gabe Black <gabeblack@google.com> | 2019-04-14 01:01:47 +0000 |
| commit | 73e14fb3679e1063012b67a33c69473713a12304 (patch) | |
| tree | aea1a0719e681bc2ee5700d6737d655b0af33a6c /src/mem/abstract_mem.hh | |
| parent | b2b9285809c47dc7e757c2747a8a5497087b11ec (diff) | |
| download | gem5-73e14fb3679e1063012b67a33c69473713a12304.tar.xz | |
mem: Maintain a back door into the AbstractMem's backing store.
The backing store pointer is added to the back door when it's set,
assuming that the range isn't interleaved. If it is interleaved, then
there isn't a way to get a flat pointer to the backing store.
Depending on how the backing store is set up, it may be possible to
return a larger backdoor which applies to all interleaved memories at
the same time and to avoid problems with interleaving. I'm leaving this
as a todo.
Change-Id: I0e531c22835ec10954ab39f761b3d87666b59220
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17668
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Diffstat (limited to 'src/mem/abstract_mem.hh')
| -rw-r--r-- | src/mem/abstract_mem.hh | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mem/abstract_mem.hh b/src/mem/abstract_mem.hh index 4dd255f5f..cf9ca7439 100644 --- a/src/mem/abstract_mem.hh +++ b/src/mem/abstract_mem.hh @@ -49,6 +49,7 @@ #ifndef __MEM_ABSTRACT_MEMORY_HH__ #define __MEM_ABSTRACT_MEMORY_HH__ +#include "mem/backdoor.hh" #include "mem/mem_object.hh" #include "params/AbstractMemory.hh" #include "sim/stats.hh" @@ -110,6 +111,9 @@ class AbstractMemory : public MemObject // Pointer to host memory used to implement this memory uint8_t* pmemAddr; + // Backdoor to access this memory. + MemBackdoor backdoor; + // Enable specific memories to be reported to the configuration table const bool confTableReported; |