powerpc/book3e: Use way 3 for linear mapping bolted entry

An erratum on A2 can lead to the bolted entry we insert for the linear
mapping being evicted, to avoid that write the bolted entry to way 3.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent ca1769f7
...@@ -864,8 +864,9 @@ have_hes: ...@@ -864,8 +864,9 @@ have_hes:
* that will have to be made dependent on whether we are running under * that will have to be made dependent on whether we are running under
* a hypervisor I suppose. * a hypervisor I suppose.
*/ */
ori r3,r3,MAS0_HES | MAS0_WQ_ALLWAYS ori r11,r3,MAS0_WQ_ALLWAYS
mtspr SPRN_MAS0,r3 oris r11,r11,MAS0_ESEL(3)@h /* Use way 3: workaround A2 erratum 376 */
mtspr SPRN_MAS0,r11
lis r3,(MAS1_VALID | MAS1_IPROT)@h lis r3,(MAS1_VALID | MAS1_IPROT)@h
ori r3,r3,BOOK3E_PAGESZ_1GB << MAS1_TSIZE_SHIFT ori r3,r3,BOOK3E_PAGESZ_1GB << MAS1_TSIZE_SHIFT
mtspr SPRN_MAS1,r3 mtspr SPRN_MAS1,r3
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment