On 1/29/25 07:30, Helge Deller wrote:
Subject: [PATCH] target/hppa: Implement space register hashing for 64-bit HP-UX
The Linux kernel turns space-register hashing off unconditionally at
bootup. That code was provided by HP at the beginning of the PA-RISC
Linux porting effort, and I don't know
Richard, thanks for your feedback!
Can you please review the updated patch below which includes your
suggestions.
Additionally I've successfully tested it.
Thanks in advance,
Helge
-
Subject: [PATCH] target/hppa: Implement space register hashing for 64-bit HP-UX
The Linux kernel t
On 1/28/25 20:07, Helge Deller wrote:
What I'm not sure about is gva_offset_mask in those hunks and where you
said I can't read from env:
...
@@ -4635,6 +4641,7 @@ static void hppa_tr_init_disas_context(DisasContextBase
*dcbase, CPUState *cs)
ctx->tb_flags = ctx->base.tb->flags;
ct
* Richard Henderson :
> On 1/28/25 17:52, Richard Henderson wrote:
> > On 1/28/25 14:45, del...@kernel.org wrote:
> > > + if (ctx->is_pa20 && (a->dr == 2)) {
> > > + /* Exit TB to recalculate gva_offset_mask on %dr2 */
> > > + ctx->base.is_jmp = DISAS_IAQ_N_STALE_EXIT;
> > > + }
On 1/28/25 17:52, Richard Henderson wrote:
On 1/28/25 14:45, del...@kernel.org wrote:
+ if (ctx->is_pa20 && (a->dr == 2)) {
+ /* Exit TB to recalculate gva_offset_mask on %dr2 */
+ ctx->base.is_jmp = DISAS_IAQ_N_STALE_EXIT;
+ }
Where does this update happen? I think you've
On 1/28/25 14:45, del...@kernel.org wrote:
+if (ctx->is_pa20 && (a->dr == 2)) {
+/* Exit TB to recalculate gva_offset_mask on %dr2 */
+ctx->base.is_jmp = DISAS_IAQ_N_STALE_EXIT;
+}
Where does this update happen? I think you've missed that step.
r~
On 1/28/25 14:45, del...@kernel.org wrote:
@@ -4635,6 +4640,7 @@ static void hppa_tr_init_disas_context(DisasContextBase
*dcbase, CPUState *cs)
ctx->tb_flags = ctx->base.tb->flags;
ctx->is_pa20 = hppa_is_pa20(cpu_env(cs));
ctx->psw_xb = ctx->tb_flags & (PSW_X | PSW_B);
+ctx
From: Helge Deller
The Linux kernel turns space-register hashing off unconditionally at
bootup. That code was provided by HP at the beginning of the PA-RISC
Linux porting effort, and I don't know why it was decided then why Linux
should not use space register hashing.
32-bit HP-UX versions seem
