Gustavo Romero d0ffdee8ff powerpc/tm: Save and restore AMR on treclaim and trechkpt ... Althought AMR is stashed in the checkpoint area, currently we don't save it to the per thread checkpoint struct after a treclaim and so we don't restore it either from that struct when we trechkpt. As a consequence when the transaction is later rolled back the kernel space AMR value when the trechkpt was done appears in userspace. That commit saves and restores AMR accordingly on treclaim and trechkpt. Since AMR value is also used in kernel space in other functions, it also takes care of stashing kernel live AMR into the stack before treclaim and before trechkpt, restoring it later, just before returning from tm_reclaim and __tm_recheckpoint. Is also fixes two nonrelated comments about CR and MSR. Signed-off-by: Gustavo Romero <gromero@linux.ibm.com> Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200919150025.9609-1-gromero@linux.ibm.com		2020-10-06 23:22:25 +11:00
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asm	powerpc/tm: Save and restore AMR on treclaim and trechkpt	2020-10-06 23:22:25 +11:00
uapi/asm	powerpc/watchpoint/ptrace: Introduce PPC_DEBUG_FEATURE_DATA_BP_ARCH_31	2020-09-15 22:13:20 +10:00