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Opened on Sep 20, 2011 at 4:08:20 PM
Closed on Oct 6, 2011 at 3:47:11 PM
#1920 closed defect (fixed)
sparc64: memory mapping fixes
| Reported by: | Gedare Bloom | Owned by: | Joel Sherrill |
|---|---|---|---|
| Priority: | normal | Milestone: | 4.11 |
| Component: | bsps | Version: | 4.11 |
| Severity: | normal | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: |
Description
This patch fixes BSP memory to support more than 4 MB of RAM. We manually install (identity) TLB mappings and do not support MMU traps. In the future I would look to refactor the manual entries into a more generic trap-based solution. This patch installs enough mappings for 12MB of RAM and makes adjustments to the linkcmds to reflect what is available. A fix is made to install the TLB mappings before the stack is accessed so that if it is located at a high address it will be mapped. This patch also corrects the layout of memory so that the workspace does not overlap with the heap.
Attachments (2)
Change History (4)
Changed on Sep 20, 2011 at 4:08:20 PM by Gedare Bloom
| Attachment: | sparc64-memory.diff added |
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Changed on Sep 20, 2011 at 4:08:50 PM by Gedare Bloom
| Attachment: | sparc64-memory.ChangeLog added |
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changelog
comment:1 Changed on Oct 6, 2011 at 3:47:11 PM by Joel Sherrill
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Committed. Thanks.
comment:2 Changed on Nov 24, 2014 at 6:58:28 PM by Gedare Bloom
| Version: | HEAD → 4.11 |
|---|
Replace Version=HEAD with Version=4.11 for the tickets with Milestone >= 4.11
Fix BSP to support more than 4 MB of RAM.