* [PATCH 01/26] ppc: Add a POWER10 DD2 CPU
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-20 13:40 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 02/26] ppc/pnv: Change the POWER10 machine to support DD2 only Cédric Le Goater
` (26 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The POWER10 DD2 CPU adds an extra LPCR[HAIL] bit. DD1 doesn't have
HAIL but since it does not break the modeling and that we don't plan
to support DD1, modify the LPCR mask of all the POWER10 family.
Setting the HAIL bit is a requirement to support the scv instruction
on PowerNV POWER10 platforms since glibc-2.33.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
target/ppc/cpu-models.h | 1 +
target/ppc/cpu-models.c | 4 +++-
target/ppc/cpu_init.c | 3 +++
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
index fc5e21728d7e..095259275941 100644
--- a/target/ppc/cpu-models.h
+++ b/target/ppc/cpu-models.h
@@ -375,6 +375,7 @@ enum {
CPU_POWERPC_POWER9_DD20 = 0x004E1200,
CPU_POWERPC_POWER10_BASE = 0x00800000,
CPU_POWERPC_POWER10_DD1 = 0x00800100,
+ CPU_POWERPC_POWER10_DD20 = 0x00800200,
CPU_POWERPC_970_v22 = 0x00390202,
CPU_POWERPC_970FX_v10 = 0x00391100,
CPU_POWERPC_970FX_v20 = 0x003C0200,
diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
index 87e4228614b0..4baa111713b0 100644
--- a/target/ppc/cpu-models.c
+++ b/target/ppc/cpu-models.c
@@ -776,6 +776,8 @@
"POWER9 v2.0")
POWERPC_DEF("power10_v1.0", CPU_POWERPC_POWER10_DD1, POWER10,
"POWER10 v1.0")
+ POWERPC_DEF("power10_v2.0", CPU_POWERPC_POWER10_DD20, POWER10,
+ "POWER10 v2.0")
#endif /* defined (TARGET_PPC64) */
/***************************************************************************/
@@ -952,7 +954,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
{ "power8", "power8_v2.0" },
{ "power8nvl", "power8nvl_v1.0" },
{ "power9", "power9_v2.0" },
- { "power10", "power10_v1.0" },
+ { "power10", "power10_v2.0" },
#endif
/* Generic PowerPCs */
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 505a0ed6ac09..66deb18a6b65 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -8270,6 +8270,9 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
LPCR_DEE | LPCR_OEE))
| LPCR_MER | LPCR_GTSE | LPCR_TC |
LPCR_HEIC | LPCR_LPES0 | LPCR_HVICE | LPCR_HDICE;
+ /* DD2 adds an extra HAIL bit */
+ pcc->lpcr_mask |= LPCR_HAIL;
+
pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
pcc->mmu_model = POWERPC_MMU_3_00;
#if defined(CONFIG_SOFTMMU)
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 01/26] ppc: Add a POWER10 DD2 CPU
2021-08-09 13:45 ` [PATCH 01/26] ppc: Add a POWER10 DD2 CPU Cédric Le Goater
@ 2021-08-20 13:40 ` Greg Kurz
2021-08-30 7:10 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: Greg Kurz @ 2021-08-20 13:40 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:22 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> The POWER10 DD2 CPU adds an extra LPCR[HAIL] bit. DD1 doesn't have
> HAIL but since it does not break the modeling and that we don't plan
> to support DD1, modify the LPCR mask of all the POWER10 family.
>
Maybe consider dropping DD1 at some point then ?
Anyway,
Reviewed-by: Greg Kurz <groug@kaod.org>
> Setting the HAIL bit is a requirement to support the scv instruction
> on PowerNV POWER10 platforms since glibc-2.33.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> target/ppc/cpu-models.h | 1 +
> target/ppc/cpu-models.c | 4 +++-
> target/ppc/cpu_init.c | 3 +++
> 3 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
> index fc5e21728d7e..095259275941 100644
> --- a/target/ppc/cpu-models.h
> +++ b/target/ppc/cpu-models.h
> @@ -375,6 +375,7 @@ enum {
> CPU_POWERPC_POWER9_DD20 = 0x004E1200,
> CPU_POWERPC_POWER10_BASE = 0x00800000,
> CPU_POWERPC_POWER10_DD1 = 0x00800100,
> + CPU_POWERPC_POWER10_DD20 = 0x00800200,
> CPU_POWERPC_970_v22 = 0x00390202,
> CPU_POWERPC_970FX_v10 = 0x00391100,
> CPU_POWERPC_970FX_v20 = 0x003C0200,
> diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
> index 87e4228614b0..4baa111713b0 100644
> --- a/target/ppc/cpu-models.c
> +++ b/target/ppc/cpu-models.c
> @@ -776,6 +776,8 @@
> "POWER9 v2.0")
> POWERPC_DEF("power10_v1.0", CPU_POWERPC_POWER10_DD1, POWER10,
> "POWER10 v1.0")
> + POWERPC_DEF("power10_v2.0", CPU_POWERPC_POWER10_DD20, POWER10,
> + "POWER10 v2.0")
> #endif /* defined (TARGET_PPC64) */
>
> /***************************************************************************/
> @@ -952,7 +954,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
> { "power8", "power8_v2.0" },
> { "power8nvl", "power8nvl_v1.0" },
> { "power9", "power9_v2.0" },
> - { "power10", "power10_v1.0" },
> + { "power10", "power10_v2.0" },
> #endif
>
> /* Generic PowerPCs */
> diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
> index 505a0ed6ac09..66deb18a6b65 100644
> --- a/target/ppc/cpu_init.c
> +++ b/target/ppc/cpu_init.c
> @@ -8270,6 +8270,9 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
> LPCR_DEE | LPCR_OEE))
> | LPCR_MER | LPCR_GTSE | LPCR_TC |
> LPCR_HEIC | LPCR_LPES0 | LPCR_HVICE | LPCR_HDICE;
> + /* DD2 adds an extra HAIL bit */
> + pcc->lpcr_mask |= LPCR_HAIL;
> +
> pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
> pcc->mmu_model = POWERPC_MMU_3_00;
> #if defined(CONFIG_SOFTMMU)
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 01/26] ppc: Add a POWER10 DD2 CPU
2021-08-20 13:40 ` Greg Kurz
@ 2021-08-30 7:10 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:10 UTC (permalink / raw)
To: Greg Kurz; +Cc: qemu-ppc, qemu-devel, David Gibson
On 8/20/21 3:40 PM, Greg Kurz wrote:
> On Mon, 9 Aug 2021 15:45:22 +0200
> Cédric Le Goater <clg@kaod.org> wrote:
>
>> The POWER10 DD2 CPU adds an extra LPCR[HAIL] bit. DD1 doesn't have
>> HAIL but since it does not break the modeling and that we don't plan
>> to support DD1, modify the LPCR mask of all the POWER10 family.
>>
>
> Maybe consider dropping DD1 at some point then ?
Sure. I will send a little series addressing all your comments since
the initial patches have been merged.
Thanks,
C.
>
> Anyway,
>
> Reviewed-by: Greg Kurz <groug@kaod.org>
>
>> Setting the HAIL bit is a requirement to support the scv instruction
>> on PowerNV POWER10 platforms since glibc-2.33.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> target/ppc/cpu-models.h | 1 +
>> target/ppc/cpu-models.c | 4 +++-
>> target/ppc/cpu_init.c | 3 +++
>> 3 files changed, 7 insertions(+), 1 deletion(-)
>>
>> diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
>> index fc5e21728d7e..095259275941 100644
>> --- a/target/ppc/cpu-models.h
>> +++ b/target/ppc/cpu-models.h
>> @@ -375,6 +375,7 @@ enum {
>> CPU_POWERPC_POWER9_DD20 = 0x004E1200,
>> CPU_POWERPC_POWER10_BASE = 0x00800000,
>> CPU_POWERPC_POWER10_DD1 = 0x00800100,
>> + CPU_POWERPC_POWER10_DD20 = 0x00800200,
>> CPU_POWERPC_970_v22 = 0x00390202,
>> CPU_POWERPC_970FX_v10 = 0x00391100,
>> CPU_POWERPC_970FX_v20 = 0x003C0200,
>> diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
>> index 87e4228614b0..4baa111713b0 100644
>> --- a/target/ppc/cpu-models.c
>> +++ b/target/ppc/cpu-models.c
>> @@ -776,6 +776,8 @@
>> "POWER9 v2.0")
>> POWERPC_DEF("power10_v1.0", CPU_POWERPC_POWER10_DD1, POWER10,
>> "POWER10 v1.0")
>> + POWERPC_DEF("power10_v2.0", CPU_POWERPC_POWER10_DD20, POWER10,
>> + "POWER10 v2.0")
>> #endif /* defined (TARGET_PPC64) */
>>
>> /***************************************************************************/
>> @@ -952,7 +954,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
>> { "power8", "power8_v2.0" },
>> { "power8nvl", "power8nvl_v1.0" },
>> { "power9", "power9_v2.0" },
>> - { "power10", "power10_v1.0" },
>> + { "power10", "power10_v2.0" },
>> #endif
>>
>> /* Generic PowerPCs */
>> diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
>> index 505a0ed6ac09..66deb18a6b65 100644
>> --- a/target/ppc/cpu_init.c
>> +++ b/target/ppc/cpu_init.c
>> @@ -8270,6 +8270,9 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
>> LPCR_DEE | LPCR_OEE))
>> | LPCR_MER | LPCR_GTSE | LPCR_TC |
>> LPCR_HEIC | LPCR_LPES0 | LPCR_HVICE | LPCR_HDICE;
>> + /* DD2 adds an extra HAIL bit */
>> + pcc->lpcr_mask |= LPCR_HAIL;
>> +
>> pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
>> pcc->mmu_model = POWERPC_MMU_3_00;
>> #if defined(CONFIG_SOFTMMU)
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 02/26] ppc/pnv: Change the POWER10 machine to support DD2 only
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
2021-08-09 13:45 ` [PATCH 01/26] ppc: Add a POWER10 DD2 CPU Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-20 13:41 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 03/26] ppc/pnv: powerpc_excp: Do not discard HDECR exception when entering power-saving mode Cédric Le Goater
` (25 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
There is no need to keep the DD1 chip model as it will never be
publicly available.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/pnv.h | 2 +-
hw/ppc/pnv.c | 2 +-
hw/ppc/pnv_core.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index d69cee17b232..3fec7c87d82d 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -170,7 +170,7 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER8NVL,
DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9,
TYPE_PNV_CHIP_POWER9)
-#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v1.0")
+#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v2.0")
DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
TYPE_PNV_CHIP_POWER10)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index d16dd2d0801d..b122251d1a5d 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1916,7 +1916,7 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
static const char compat[] = "qemu,powernv10\0ibm,powernv";
mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
- mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v1.0");
+ mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v2.0");
pmc->compat = compat;
pmc->compat_size = sizeof(compat);
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 8c2a15a0fb2f..4de8414df212 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -347,7 +347,7 @@ static const TypeInfo pnv_core_infos[] = {
DEFINE_PNV_CORE_TYPE(power8, "power8_v2.0"),
DEFINE_PNV_CORE_TYPE(power8, "power8nvl_v1.0"),
DEFINE_PNV_CORE_TYPE(power9, "power9_v2.0"),
- DEFINE_PNV_CORE_TYPE(power10, "power10_v1.0"),
+ DEFINE_PNV_CORE_TYPE(power10, "power10_v2.0"),
};
DEFINE_TYPES(pnv_core_infos)
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 02/26] ppc/pnv: Change the POWER10 machine to support DD2 only
2021-08-09 13:45 ` [PATCH 02/26] ppc/pnv: Change the POWER10 machine to support DD2 only Cédric Le Goater
@ 2021-08-20 13:41 ` Greg Kurz
0 siblings, 0 replies; 49+ messages in thread
From: Greg Kurz @ 2021-08-20 13:41 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:23 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> There is no need to keep the DD1 chip model as it will never be
> publicly available.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
Reviewed-by: Greg Kurz <groug@kaod.org>
> include/hw/ppc/pnv.h | 2 +-
> hw/ppc/pnv.c | 2 +-
> hw/ppc/pnv_core.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index d69cee17b232..3fec7c87d82d 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -170,7 +170,7 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER8NVL,
> DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9,
> TYPE_PNV_CHIP_POWER9)
>
> -#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v1.0")
> +#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v2.0")
> DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
> TYPE_PNV_CHIP_POWER10)
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index d16dd2d0801d..b122251d1a5d 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1916,7 +1916,7 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
> static const char compat[] = "qemu,powernv10\0ibm,powernv";
>
> mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
> - mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v1.0");
> + mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power10_v2.0");
>
> pmc->compat = compat;
> pmc->compat_size = sizeof(compat);
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index 8c2a15a0fb2f..4de8414df212 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -347,7 +347,7 @@ static const TypeInfo pnv_core_infos[] = {
> DEFINE_PNV_CORE_TYPE(power8, "power8_v2.0"),
> DEFINE_PNV_CORE_TYPE(power8, "power8nvl_v1.0"),
> DEFINE_PNV_CORE_TYPE(power9, "power9_v2.0"),
> - DEFINE_PNV_CORE_TYPE(power10, "power10_v1.0"),
> + DEFINE_PNV_CORE_TYPE(power10, "power10_v2.0"),
> };
>
> DEFINE_TYPES(pnv_core_infos)
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 03/26] ppc/pnv: powerpc_excp: Do not discard HDECR exception when entering power-saving mode
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
2021-08-09 13:45 ` [PATCH 01/26] ppc: Add a POWER10 DD2 CPU Cédric Le Goater
2021-08-09 13:45 ` [PATCH 02/26] ppc/pnv: Change the POWER10 machine to support DD2 only Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id Cédric Le Goater
` (24 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The Hypervisor Decrementer exception should not be generated while the
CPU is in power-saving mode (see cpu_ppc_hdecr_excp()). However,
discarding the exception before entering the power-saving mode is
wrong since we would loose a previously generated HDEC.
Fixes: 4b236b621bf0 ("ppc: Initial HDEC support")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
This fixes CPU hard lockups when doing intensive I/Os on the machine.
target/ppc/excp_helper.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index a79a0ed465e5..7b6ac16eef72 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -1211,12 +1211,6 @@ void helper_pminsn(CPUPPCState *env, powerpc_pm_insn_t insn)
cs = env_cpu(env);
cs->halted = 1;
- /*
- * The architecture specifies that HDEC interrupts are discarded
- * in PM states
- */
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
-
/* Condition for waking up at 0x100 */
env->resume_as_sreset = (insn != PPC_PM_STOP) ||
(env->spr[SPR_PSSCR] & PSSCR_EC);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (2 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 03/26] ppc/pnv: powerpc_excp: Do not discard HDECR exception when entering power-saving mode Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-20 13:51 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 05/26] ppc/pnv: Distribute RAM among the chips Cédric Le Goater
` (23 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
When the QEMU PowerNV machine was introduced, multi chip support
modeled a two socket system with dual chip modules as found on some P8
Tuleta systems (8286-42A). But this is hardly used and not relevant
for QEMU. Use a simple index instead.
With this change, we can now increase the max socket number to 16 as
found on high end systems.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/pnv.h | 33 +++++++--------------------------
hw/ppc/pnv.c | 11 ++++++-----
2 files changed, 13 insertions(+), 31 deletions(-)
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index 3fec7c87d82d..aa08d79d24de 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -174,25 +174,6 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9,
DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
TYPE_PNV_CHIP_POWER10)
-/*
- * This generates a HW chip id depending on an index, as found on a
- * two socket system with dual chip modules :
- *
- * 0x0, 0x1, 0x10, 0x11
- *
- * 4 chips should be the maximum
- *
- * TODO: use a machine property to define the chip ids
- */
-#define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
-
-/*
- * Converts back a HW chip id to an index. This is useful to calculate
- * the MMIO addresses of some controllers which depend on the chip id.
- */
-#define PNV_CHIP_INDEX(chip) \
- (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
-
PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
#define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv")
@@ -256,11 +237,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
#define PNV_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
#define PNV_OCC_COMMON_AREA_BASE 0x7fff800000ull
#define PNV_OCC_SENSOR_BASE(chip) (PNV_OCC_COMMON_AREA_BASE + \
- PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
+ PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
#define PNV_HOMER_SIZE 0x0000000000400000ull
#define PNV_HOMER_BASE(chip) \
- (0x7ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV_HOMER_SIZE)
+ (0x7ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV_HOMER_SIZE)
/*
@@ -279,16 +260,16 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
*/
#define PNV_ICP_SIZE 0x0000000000100000ull
#define PNV_ICP_BASE(chip) \
- (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
+ (0x0003ffff80000000ull + (uint64_t) (chip)->chip_id * PNV_ICP_SIZE)
#define PNV_PSIHB_SIZE 0x0000000000100000ull
#define PNV_PSIHB_BASE(chip) \
- (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
+ (0x0003fffe80000000ull + (uint64_t)(chip)->chip_id * PNV_PSIHB_SIZE)
#define PNV_PSIHB_FSP_SIZE 0x0000000100000000ull
#define PNV_PSIHB_FSP_BASE(chip) \
- (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
+ (0x0003ffe000000000ull + (uint64_t)(chip)->chip_id * \
PNV_PSIHB_FSP_SIZE)
/*
@@ -324,11 +305,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
#define PNV9_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
#define PNV9_OCC_COMMON_AREA_BASE 0x203fff800000ull
#define PNV9_OCC_SENSOR_BASE(chip) (PNV9_OCC_COMMON_AREA_BASE + \
- PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
+ PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
#define PNV9_HOMER_SIZE 0x0000000000400000ull
#define PNV9_HOMER_BASE(chip) \
- (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE)
+ (0x203ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV9_HOMER_SIZE)
/*
* POWER10 MMIO base addresses - 16TB stride per chip
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index b122251d1a5d..025f01c55744 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -809,9 +809,10 @@ static void pnv_init(MachineState *machine)
* TODO: should we decide on how many chips we can create based
* on #cores and Venice vs. Murano vs. Naples chip type etc...,
*/
- if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 4) {
+ if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 16) {
error_report("invalid number of chips: '%d'", pnv->num_chips);
- error_printf("Try '-smp sockets=N'. Valid values are : 1, 2 or 4.\n");
+ error_printf(
+ "Try '-smp sockets=N'. Valid values are : 1, 2, 4, 8 and 16.\n");
exit(1);
}
@@ -819,6 +820,7 @@ static void pnv_init(MachineState *machine)
for (i = 0; i < pnv->num_chips; i++) {
char chip_name[32];
Object *chip = OBJECT(qdev_new(chip_typename));
+ int chip_id = i;
pnv->chips[i] = PNV_CHIP(chip);
@@ -831,10 +833,9 @@ static void pnv_init(MachineState *machine)
&error_fatal);
}
- snprintf(chip_name, sizeof(chip_name), "chip[%d]", PNV_CHIP_HWID(i));
+ snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
object_property_add_child(OBJECT(pnv), chip_name, chip);
- object_property_set_int(chip, "chip-id", PNV_CHIP_HWID(i),
- &error_fatal);
+ object_property_set_int(chip, "chip-id", chip_id, &error_fatal);
object_property_set_int(chip, "nr-cores", machine->smp.cores,
&error_fatal);
object_property_set_int(chip, "nr-threads", machine->smp.threads,
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id
2021-08-09 13:45 ` [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id Cédric Le Goater
@ 2021-08-20 13:51 ` Greg Kurz
2021-08-30 7:11 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: Greg Kurz @ 2021-08-20 13:51 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:25 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> When the QEMU PowerNV machine was introduced, multi chip support
> modeled a two socket system with dual chip modules as found on some P8
> Tuleta systems (8286-42A). But this is hardly used and not relevant
> for QEMU. Use a simple index instead.
>
Makes sense.
> With this change, we can now increase the max socket number to 16 as
> found on high end systems.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> include/hw/ppc/pnv.h | 33 +++++++--------------------------
> hw/ppc/pnv.c | 11 ++++++-----
> 2 files changed, 13 insertions(+), 31 deletions(-)
>
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index 3fec7c87d82d..aa08d79d24de 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -174,25 +174,6 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9,
> DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
> TYPE_PNV_CHIP_POWER10)
>
> -/*
> - * This generates a HW chip id depending on an index, as found on a
> - * two socket system with dual chip modules :
> - *
> - * 0x0, 0x1, 0x10, 0x11
> - *
> - * 4 chips should be the maximum
> - *
> - * TODO: use a machine property to define the chip ids
> - */
> -#define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
> -
> -/*
> - * Converts back a HW chip id to an index. This is useful to calculate
> - * the MMIO addresses of some controllers which depend on the chip id.
> - */
> -#define PNV_CHIP_INDEX(chip) \
> - (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
> -
> PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
>
> #define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv")
> @@ -256,11 +237,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
> #define PNV_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
> #define PNV_OCC_COMMON_AREA_BASE 0x7fff800000ull
> #define PNV_OCC_SENSOR_BASE(chip) (PNV_OCC_COMMON_AREA_BASE + \
> - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
> + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
>
> #define PNV_HOMER_SIZE 0x0000000000400000ull
> #define PNV_HOMER_BASE(chip) \
> - (0x7ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV_HOMER_SIZE)
> + (0x7ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV_HOMER_SIZE)
>
>
> /*
> @@ -279,16 +260,16 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
> */
> #define PNV_ICP_SIZE 0x0000000000100000ull
> #define PNV_ICP_BASE(chip) \
> - (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
> + (0x0003ffff80000000ull + (uint64_t) (chip)->chip_id * PNV_ICP_SIZE)
>
>
> #define PNV_PSIHB_SIZE 0x0000000000100000ull
> #define PNV_PSIHB_BASE(chip) \
> - (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
> + (0x0003fffe80000000ull + (uint64_t)(chip)->chip_id * PNV_PSIHB_SIZE)
>
> #define PNV_PSIHB_FSP_SIZE 0x0000000100000000ull
> #define PNV_PSIHB_FSP_BASE(chip) \
> - (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
> + (0x0003ffe000000000ull + (uint64_t)(chip)->chip_id * \
> PNV_PSIHB_FSP_SIZE)
>
> /*
> @@ -324,11 +305,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
> #define PNV9_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
> #define PNV9_OCC_COMMON_AREA_BASE 0x203fff800000ull
> #define PNV9_OCC_SENSOR_BASE(chip) (PNV9_OCC_COMMON_AREA_BASE + \
> - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
> + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
>
> #define PNV9_HOMER_SIZE 0x0000000000400000ull
> #define PNV9_HOMER_BASE(chip) \
> - (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE)
> + (0x203ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV9_HOMER_SIZE)
>
> /*
> * POWER10 MMIO base addresses - 16TB stride per chip
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index b122251d1a5d..025f01c55744 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -809,9 +809,10 @@ static void pnv_init(MachineState *machine)
> * TODO: should we decide on how many chips we can create based
> * on #cores and Venice vs. Murano vs. Naples chip type etc...,
> */
> - if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 4) {
> + if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 16) {
> error_report("invalid number of chips: '%d'", pnv->num_chips);
> - error_printf("Try '-smp sockets=N'. Valid values are : 1, 2 or 4.\n");
> + error_printf(
> + "Try '-smp sockets=N'. Valid values are : 1, 2, 4, 8 and 16.\n");
> exit(1);
> }
>
> @@ -819,6 +820,7 @@ static void pnv_init(MachineState *machine)
> for (i = 0; i < pnv->num_chips; i++) {
> char chip_name[32];
> Object *chip = OBJECT(qdev_new(chip_typename));
> + int chip_id = i;
>
> pnv->chips[i] = PNV_CHIP(chip);
>
> @@ -831,10 +833,9 @@ static void pnv_init(MachineState *machine)
> &error_fatal);
> }
>
> - snprintf(chip_name, sizeof(chip_name), "chip[%d]", PNV_CHIP_HWID(i));
> + snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
I'd rather pass directly the i variable. It is clear enough this is
the index of the chip in pnv->chips[]. No need for an intermediate
variable IMHO.
Anyway,
Reviewed-by: Greg Kurz <groug@kaod.org>
> object_property_add_child(OBJECT(pnv), chip_name, chip);
> - object_property_set_int(chip, "chip-id", PNV_CHIP_HWID(i),
> - &error_fatal);
> + object_property_set_int(chip, "chip-id", chip_id, &error_fatal);
> object_property_set_int(chip, "nr-cores", machine->smp.cores,
> &error_fatal);
> object_property_set_int(chip, "nr-threads", machine->smp.threads,
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id
2021-08-20 13:51 ` Greg Kurz
@ 2021-08-30 7:11 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:11 UTC (permalink / raw)
To: Greg Kurz; +Cc: qemu-ppc, qemu-devel, David Gibson
On 8/20/21 3:51 PM, Greg Kurz wrote:
> On Mon, 9 Aug 2021 15:45:25 +0200
> Cédric Le Goater <clg@kaod.org> wrote:
>
>> When the QEMU PowerNV machine was introduced, multi chip support
>> modeled a two socket system with dual chip modules as found on some P8
>> Tuleta systems (8286-42A). But this is hardly used and not relevant
>> for QEMU. Use a simple index instead.
>>
>
> Makes sense.
>
>> With this change, we can now increase the max socket number to 16 as
>> found on high end systems.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> include/hw/ppc/pnv.h | 33 +++++++--------------------------
>> hw/ppc/pnv.c | 11 ++++++-----
>> 2 files changed, 13 insertions(+), 31 deletions(-)
>>
>> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
>> index 3fec7c87d82d..aa08d79d24de 100644
>> --- a/include/hw/ppc/pnv.h
>> +++ b/include/hw/ppc/pnv.h
>> @@ -174,25 +174,6 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9,
>> DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10,
>> TYPE_PNV_CHIP_POWER10)
>>
>> -/*
>> - * This generates a HW chip id depending on an index, as found on a
>> - * two socket system with dual chip modules :
>> - *
>> - * 0x0, 0x1, 0x10, 0x11
>> - *
>> - * 4 chips should be the maximum
>> - *
>> - * TODO: use a machine property to define the chip ids
>> - */
>> -#define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
>> -
>> -/*
>> - * Converts back a HW chip id to an index. This is useful to calculate
>> - * the MMIO addresses of some controllers which depend on the chip id.
>> - */
>> -#define PNV_CHIP_INDEX(chip) \
>> - (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
>> -
>> PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
>>
>> #define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv")
>> @@ -256,11 +237,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
>> #define PNV_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
>> #define PNV_OCC_COMMON_AREA_BASE 0x7fff800000ull
>> #define PNV_OCC_SENSOR_BASE(chip) (PNV_OCC_COMMON_AREA_BASE + \
>> - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
>> + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
>>
>> #define PNV_HOMER_SIZE 0x0000000000400000ull
>> #define PNV_HOMER_BASE(chip) \
>> - (0x7ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV_HOMER_SIZE)
>> + (0x7ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV_HOMER_SIZE)
>>
>>
>> /*
>> @@ -279,16 +260,16 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
>> */
>> #define PNV_ICP_SIZE 0x0000000000100000ull
>> #define PNV_ICP_BASE(chip) \
>> - (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
>> + (0x0003ffff80000000ull + (uint64_t) (chip)->chip_id * PNV_ICP_SIZE)
>>
>>
>> #define PNV_PSIHB_SIZE 0x0000000000100000ull
>> #define PNV_PSIHB_BASE(chip) \
>> - (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
>> + (0x0003fffe80000000ull + (uint64_t)(chip)->chip_id * PNV_PSIHB_SIZE)
>>
>> #define PNV_PSIHB_FSP_SIZE 0x0000000100000000ull
>> #define PNV_PSIHB_FSP_BASE(chip) \
>> - (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
>> + (0x0003ffe000000000ull + (uint64_t)(chip)->chip_id * \
>> PNV_PSIHB_FSP_SIZE)
>>
>> /*
>> @@ -324,11 +305,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
>> #define PNV9_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
>> #define PNV9_OCC_COMMON_AREA_BASE 0x203fff800000ull
>> #define PNV9_OCC_SENSOR_BASE(chip) (PNV9_OCC_COMMON_AREA_BASE + \
>> - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip)))
>> + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
>>
>> #define PNV9_HOMER_SIZE 0x0000000000400000ull
>> #define PNV9_HOMER_BASE(chip) \
>> - (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE)
>> + (0x203ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV9_HOMER_SIZE)
>>
>> /*
>> * POWER10 MMIO base addresses - 16TB stride per chip
>> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
>> index b122251d1a5d..025f01c55744 100644
>> --- a/hw/ppc/pnv.c
>> +++ b/hw/ppc/pnv.c
>> @@ -809,9 +809,10 @@ static void pnv_init(MachineState *machine)
>> * TODO: should we decide on how many chips we can create based
>> * on #cores and Venice vs. Murano vs. Naples chip type etc...,
>> */
>> - if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 4) {
>> + if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 16) {
>> error_report("invalid number of chips: '%d'", pnv->num_chips);
>> - error_printf("Try '-smp sockets=N'. Valid values are : 1, 2 or 4.\n");
>> + error_printf(
>> + "Try '-smp sockets=N'. Valid values are : 1, 2, 4, 8 and 16.\n");
>> exit(1);
>> }
>>
>> @@ -819,6 +820,7 @@ static void pnv_init(MachineState *machine)
>> for (i = 0; i < pnv->num_chips; i++) {
>> char chip_name[32];
>> Object *chip = OBJECT(qdev_new(chip_typename));
>> + int chip_id = i;
>>
>> pnv->chips[i] = PNV_CHIP(chip);
>>
>> @@ -831,10 +833,9 @@ static void pnv_init(MachineState *machine)
>> &error_fatal);
>> }
>>
>> - snprintf(chip_name, sizeof(chip_name), "chip[%d]", PNV_CHIP_HWID(i));
>> + snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
>
> I'd rather pass directly the i variable. It is clear enough this is
> the index of the chip in pnv->chips[]. No need for an intermediate
> variable IMHO.
Yes. I will address that in a follow-up series.
Thanks,
C.
> Anyway,
>
> Reviewed-by: Greg Kurz <groug@kaod.org>
>
>> object_property_add_child(OBJECT(pnv), chip_name, chip);
>> - object_property_set_int(chip, "chip-id", PNV_CHIP_HWID(i),
>> - &error_fatal);
>> + object_property_set_int(chip, "chip-id", chip_id, &error_fatal);
>> object_property_set_int(chip, "nr-cores", machine->smp.cores,
>> &error_fatal);
>> object_property_set_int(chip, "nr-threads", machine->smp.threads,
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 05/26] ppc/pnv: Distribute RAM among the chips
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (3 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 04/26] ppc/pnv: Use a simple incrementing index for the chip-id Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-20 14:08 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10 Cédric Le Goater
` (22 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
But always give the first 1GB to chip 0 as skiboot requires it.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/ppc/pnv.c | 33 +++++++++++++++++++++++++--------
1 file changed, 25 insertions(+), 8 deletions(-)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 025f01c55744..2f5358b70c95 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -710,6 +710,23 @@ static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
pnv_psi_pic_print_info(&chip10->psi, mon);
}
+/* Always give the first 1GB to chip 0 else we won't boot */
+static uint64_t pnv_chip_get_ram_size(PnvMachineState *pnv, int chip_id)
+{
+ MachineState *machine = MACHINE(pnv);
+ uint64_t ram_per_chip;
+
+ assert(machine->ram_size >= 1 * GiB);
+
+ ram_per_chip = machine->ram_size / pnv->num_chips;
+ if (ram_per_chip >= 1 * GiB) {
+ return QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
+ }
+
+ ram_per_chip = (machine->ram_size - 1 * GiB) / (pnv->num_chips - 1);
+ return chip_id == 0 ? 1 * GiB : QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
+}
+
static void pnv_init(MachineState *machine)
{
const char *bios_name = machine->firmware ?: FW_FILE_NAME;
@@ -717,6 +734,7 @@ static void pnv_init(MachineState *machine)
MachineClass *mc = MACHINE_GET_CLASS(machine);
char *fw_filename;
long fw_size;
+ uint64_t chip_ram_start = 0;
int i;
char *chip_typename;
DriveInfo *pnor = drive_get(IF_MTD, 0, 0);
@@ -821,17 +839,16 @@ static void pnv_init(MachineState *machine)
char chip_name[32];
Object *chip = OBJECT(qdev_new(chip_typename));
int chip_id = i;
+ uint64_t chip_ram_size = pnv_chip_get_ram_size(pnv, chip_id);
pnv->chips[i] = PNV_CHIP(chip);
- /*
- * TODO: put all the memory in one node on chip 0 until we find a
- * way to specify different ranges for each chip
- */
- if (i == 0) {
- object_property_set_int(chip, "ram-size", machine->ram_size,
- &error_fatal);
- }
+ /* Distribute RAM among the chips */
+ object_property_set_int(chip, "ram-start", chip_ram_start,
+ &error_fatal);
+ object_property_set_int(chip, "ram-size", chip_ram_size,
+ &error_fatal);
+ chip_ram_start += chip_ram_size;
snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
object_property_add_child(OBJECT(pnv), chip_name, chip);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 05/26] ppc/pnv: Distribute RAM among the chips
2021-08-09 13:45 ` [PATCH 05/26] ppc/pnv: Distribute RAM among the chips Cédric Le Goater
@ 2021-08-20 14:08 ` Greg Kurz
2021-08-30 7:14 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: Greg Kurz @ 2021-08-20 14:08 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:26 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> But always give the first 1GB to chip 0 as skiboot requires it.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> hw/ppc/pnv.c | 33 +++++++++++++++++++++++++--------
> 1 file changed, 25 insertions(+), 8 deletions(-)
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 025f01c55744..2f5358b70c95 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -710,6 +710,23 @@ static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
> pnv_psi_pic_print_info(&chip10->psi, mon);
> }
>
> +/* Always give the first 1GB to chip 0 else we won't boot */
> +static uint64_t pnv_chip_get_ram_size(PnvMachineState *pnv, int chip_id)
> +{
> + MachineState *machine = MACHINE(pnv);
> + uint64_t ram_per_chip;
> +
> + assert(machine->ram_size >= 1 * GiB);
> +
> + ram_per_chip = machine->ram_size / pnv->num_chips;
> + if (ram_per_chip >= 1 * GiB) {
> + return QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
> + }
> +
So this is only reached if pnv->num_chips is >= 2, since
a single chip would have ram_per_chip == machine->ram_size
and thus take the return branch above.
Maybe worth making it clear with an assert() ?
> + ram_per_chip = (machine->ram_size - 1 * GiB) / (pnv->num_chips - 1);
Suggesting that because I was looking for a potential divide by zero ^^
> + return chip_id == 0 ? 1 * GiB : QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
> +}
> +
> static void pnv_init(MachineState *machine)
> {
> const char *bios_name = machine->firmware ?: FW_FILE_NAME;
> @@ -717,6 +734,7 @@ static void pnv_init(MachineState *machine)
> MachineClass *mc = MACHINE_GET_CLASS(machine);
> char *fw_filename;
> long fw_size;
> + uint64_t chip_ram_start = 0;
> int i;
> char *chip_typename;
> DriveInfo *pnor = drive_get(IF_MTD, 0, 0);
> @@ -821,17 +839,16 @@ static void pnv_init(MachineState *machine)
> char chip_name[32];
> Object *chip = OBJECT(qdev_new(chip_typename));
> int chip_id = i;
> + uint64_t chip_ram_size = pnv_chip_get_ram_size(pnv, chip_id);
>
> pnv->chips[i] = PNV_CHIP(chip);
>
> - /*
> - * TODO: put all the memory in one node on chip 0 until we find a
> - * way to specify different ranges for each chip
> - */
> - if (i == 0) {
> - object_property_set_int(chip, "ram-size", machine->ram_size,
> - &error_fatal);
> - }
> + /* Distribute RAM among the chips */
> + object_property_set_int(chip, "ram-start", chip_ram_start,
> + &error_fatal);
> + object_property_set_int(chip, "ram-size", chip_ram_size,
> + &error_fatal);
Not really related but failing to set either of these looks
like it should never happen so I'd rather pass &error_abort
for debugging purpose.
Anyway,
Reviewed-by: Greg Kurz <groug@kaod.org>
> + chip_ram_start += chip_ram_size;
>
> snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
> object_property_add_child(OBJECT(pnv), chip_name, chip);
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 05/26] ppc/pnv: Distribute RAM among the chips
2021-08-20 14:08 ` Greg Kurz
@ 2021-08-30 7:14 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:14 UTC (permalink / raw)
To: Greg Kurz; +Cc: qemu-ppc, qemu-devel, David Gibson
On 8/20/21 4:08 PM, Greg Kurz wrote:
> On Mon, 9 Aug 2021 15:45:26 +0200
> Cédric Le Goater <clg@kaod.org> wrote:
>
>> But always give the first 1GB to chip 0 as skiboot requires it.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> hw/ppc/pnv.c | 33 +++++++++++++++++++++++++--------
>> 1 file changed, 25 insertions(+), 8 deletions(-)
>>
>> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
>> index 025f01c55744..2f5358b70c95 100644
>> --- a/hw/ppc/pnv.c
>> +++ b/hw/ppc/pnv.c
>> @@ -710,6 +710,23 @@ static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
>> pnv_psi_pic_print_info(&chip10->psi, mon);
>> }
>>
>> +/* Always give the first 1GB to chip 0 else we won't boot */
>> +static uint64_t pnv_chip_get_ram_size(PnvMachineState *pnv, int chip_id)
>> +{
>> + MachineState *machine = MACHINE(pnv);
>> + uint64_t ram_per_chip;
>> +
>> + assert(machine->ram_size >= 1 * GiB);
>> +
>> + ram_per_chip = machine->ram_size / pnv->num_chips;
>> + if (ram_per_chip >= 1 * GiB) {
>> + return QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
>> + }
>> +
>
> So this is only reached if pnv->num_chips is >= 2, since
> a single chip would have ram_per_chip == machine->ram_size
> and thus take the return branch above.
>
> Maybe worth making it clear with an assert() ?
>
>> + ram_per_chip = (machine->ram_size - 1 * GiB) / (pnv->num_chips - 1);
>
> Suggesting that because I was looking for a potential divide by zero ^^
yes.
>
>> + return chip_id == 0 ? 1 * GiB : QEMU_ALIGN_DOWN(ram_per_chip, 1 * MiB);
>> +}
>> +
>> static void pnv_init(MachineState *machine)
>> {
>> const char *bios_name = machine->firmware ?: FW_FILE_NAME;
>> @@ -717,6 +734,7 @@ static void pnv_init(MachineState *machine)
>> MachineClass *mc = MACHINE_GET_CLASS(machine);
>> char *fw_filename;
>> long fw_size;
>> + uint64_t chip_ram_start = 0;
>> int i;
>> char *chip_typename;
>> DriveInfo *pnor = drive_get(IF_MTD, 0, 0);
>> @@ -821,17 +839,16 @@ static void pnv_init(MachineState *machine)
>> char chip_name[32];
>> Object *chip = OBJECT(qdev_new(chip_typename));
>> int chip_id = i;
>> + uint64_t chip_ram_size = pnv_chip_get_ram_size(pnv, chip_id);
>>
>> pnv->chips[i] = PNV_CHIP(chip);
>>
>> - /*
>> - * TODO: put all the memory in one node on chip 0 until we find a
>> - * way to specify different ranges for each chip
>> - */
>> - if (i == 0) {
>> - object_property_set_int(chip, "ram-size", machine->ram_size,
>> - &error_fatal);
>> - }
>> + /* Distribute RAM among the chips */
>> + object_property_set_int(chip, "ram-start", chip_ram_start,
>> + &error_fatal);
>> + object_property_set_int(chip, "ram-size", chip_ram_size,
>> + &error_fatal);
>
> Not really related but failing to set either of these looks
> like it should never happen so I'd rather pass &error_abort
> for debugging purpose.
All the other object_property_set* calls are using &error_fatal in this
routine (not the link ones). I rather be consistent and use the same error.
But we can change all of it one day it necessary.
Thanks,
C.
>
> Anyway,
>
> Reviewed-by: Greg Kurz <groug@kaod.org>
>
>> + chip_ram_start += chip_ram_size;
>>
>> snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id);
>> object_property_add_child(OBJECT(pnv), chip_name, chip);
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (4 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 05/26] ppc/pnv: Distribute RAM among the chips Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-20 14:12 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 07/26] ppc/xive: Export PQ get/set routines Cédric Le Goater
` (21 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/ppc/pnv_xscom.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index be7018e8ac59..faa488e3117a 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -284,6 +284,8 @@ int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
_FDT(xscom_offset);
g_free(name);
_FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,chip-id", chip->chip_id)));
+ _FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,primary-topology-index",
+ chip->chip_id)));
_FDT((fdt_setprop_cell(fdt, xscom_offset, "#address-cells", 1)));
_FDT((fdt_setprop_cell(fdt, xscom_offset, "#size-cells", 1)));
_FDT((fdt_setprop(fdt, xscom_offset, "reg", reg, sizeof(reg))));
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10
2021-08-09 13:45 ` [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10 Cédric Le Goater
@ 2021-08-20 14:12 ` Greg Kurz
2021-08-30 7:15 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: Greg Kurz @ 2021-08-20 14:12 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:27 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
Maybe add a short description of its purpose in the changelog
for the records ? What's the difference with "ibm,chip-id" ?
> ---
> hw/ppc/pnv_xscom.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
> index be7018e8ac59..faa488e3117a 100644
> --- a/hw/ppc/pnv_xscom.c
> +++ b/hw/ppc/pnv_xscom.c
> @@ -284,6 +284,8 @@ int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
> _FDT(xscom_offset);
> g_free(name);
> _FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,chip-id", chip->chip_id)));
> + _FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,primary-topology-index",
> + chip->chip_id)));
> _FDT((fdt_setprop_cell(fdt, xscom_offset, "#address-cells", 1)));
> _FDT((fdt_setprop_cell(fdt, xscom_offset, "#size-cells", 1)));
> _FDT((fdt_setprop(fdt, xscom_offset, "reg", reg, sizeof(reg))));
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10
2021-08-20 14:12 ` Greg Kurz
@ 2021-08-30 7:15 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:15 UTC (permalink / raw)
To: Greg Kurz; +Cc: qemu-ppc, qemu-devel, David Gibson
On 8/20/21 4:12 PM, Greg Kurz wrote:
> On Mon, 9 Aug 2021 15:45:27 +0200
> Cédric Le Goater <clg@kaod.org> wrote:
>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>
> Maybe add a short description of its purpose in the changelog
> for the records ? What's the difference with "ibm,chip-id" ?
yep. I will add a comment.
Thanks,
C.
>> ---
>> hw/ppc/pnv_xscom.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
>> index be7018e8ac59..faa488e3117a 100644
>> --- a/hw/ppc/pnv_xscom.c
>> +++ b/hw/ppc/pnv_xscom.c
>> @@ -284,6 +284,8 @@ int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
>> _FDT(xscom_offset);
>> g_free(name);
>> _FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,chip-id", chip->chip_id)));
>> + _FDT((fdt_setprop_cell(fdt, xscom_offset, "ibm,primary-topology-index",
>> + chip->chip_id)));
>> _FDT((fdt_setprop_cell(fdt, xscom_offset, "#address-cells", 1)));
>> _FDT((fdt_setprop_cell(fdt, xscom_offset, "#size-cells", 1)));
>> _FDT((fdt_setprop(fdt, xscom_offset, "reg", reg, sizeof(reg))));
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 07/26] ppc/xive: Export PQ get/set routines
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (5 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 06/26] ppc/pnv: add a chip topology index for POWER10 Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 08/26] ppc/xive: Export xive_presenter_notify() Cédric Le Goater
` (20 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
These will be shared with the XIVE2 router.
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive.h | 4 ++++
hw/intc/spapr_xive_kvm.c | 8 ++++----
hw/intc/xive.c | 6 +++---
3 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 445eccfe6b73..7e25c25bfda2 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -261,6 +261,10 @@ static inline hwaddr xive_source_esb_mgmt(XiveSource *xsrc, int srcno)
#define XIVE_ESB_QUEUED (XIVE_ESB_VAL_P | XIVE_ESB_VAL_Q)
#define XIVE_ESB_OFF XIVE_ESB_VAL_Q
+bool xive_esb_trigger(uint8_t *pq);
+bool xive_esb_eoi(uint8_t *pq);
+uint8_t xive_esb_set(uint8_t *pq, uint8_t value);
+
/*
* "magic" Event State Buffer (ESB) MMIO offsets.
*
diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c
index c00833116071..3e534b9685bf 100644
--- a/hw/intc/spapr_xive_kvm.c
+++ b/hw/intc/spapr_xive_kvm.c
@@ -297,7 +297,7 @@ static uint8_t xive_esb_read(XiveSource *xsrc, int srcno, uint32_t offset)
return xive_esb_rw(xsrc, srcno, offset, 0, 0) & 0x3;
}
-static void xive_esb_trigger(XiveSource *xsrc, int srcno)
+static void kvmppc_xive_esb_trigger(XiveSource *xsrc, int srcno)
{
uint64_t *addr = xsrc->esb_mmap + xive_source_esb_page(xsrc, srcno);
@@ -322,7 +322,7 @@ uint64_t kvmppc_xive_esb_rw(XiveSource *xsrc, int srcno, uint32_t offset,
offset == XIVE_ESB_LOAD_EOI) {
xive_esb_read(xsrc, srcno, XIVE_ESB_SET_PQ_00);
if (xsrc->status[srcno] & XIVE_STATUS_ASSERTED) {
- xive_esb_trigger(xsrc, srcno);
+ kvmppc_xive_esb_trigger(xsrc, srcno);
}
return 0;
} else {
@@ -366,7 +366,7 @@ void kvmppc_xive_source_set_irq(void *opaque, int srcno, int val)
}
}
- xive_esb_trigger(xsrc, srcno);
+ kvmppc_xive_esb_trigger(xsrc, srcno);
}
/*
@@ -533,7 +533,7 @@ static void kvmppc_xive_change_state_handler(void *opaque, bool running,
* generate a trigger.
*/
if (pq == XIVE_ESB_RESET && old_pq == XIVE_ESB_QUEUED) {
- xive_esb_trigger(xsrc, i);
+ kvmppc_xive_esb_trigger(xsrc, i);
}
}
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index eeb4e62ba954..5ec61ec14e68 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -816,7 +816,7 @@ void xive_tctx_destroy(XiveTCTX *tctx)
* XIVE ESB helpers
*/
-static uint8_t xive_esb_set(uint8_t *pq, uint8_t value)
+uint8_t xive_esb_set(uint8_t *pq, uint8_t value)
{
uint8_t old_pq = *pq & 0x3;
@@ -826,7 +826,7 @@ static uint8_t xive_esb_set(uint8_t *pq, uint8_t value)
return old_pq;
}
-static bool xive_esb_trigger(uint8_t *pq)
+bool xive_esb_trigger(uint8_t *pq)
{
uint8_t old_pq = *pq & 0x3;
@@ -846,7 +846,7 @@ static bool xive_esb_trigger(uint8_t *pq)
}
}
-static bool xive_esb_eoi(uint8_t *pq)
+bool xive_esb_eoi(uint8_t *pq)
{
uint8_t old_pq = *pq & 0x3;
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 08/26] ppc/xive: Export xive_presenter_notify()
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (6 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 07/26] ppc/xive: Export PQ get/set routines Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework Cédric Le Goater
` (19 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
It's generic enough to be used from the XIVE2 router and avoid more
duplication.
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive.h | 4 ++++
hw/intc/xive.c | 8 ++++----
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 7e25c25bfda2..db7641165484 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -408,6 +408,10 @@ int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
uint8_t format,
uint8_t nvt_blk, uint32_t nvt_idx,
bool cam_ignore, uint32_t logic_serv);
+bool xive_presenter_notify(XiveFabric *xfb, uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint8_t priority,
+ uint32_t logic_serv);
/*
* XIVE Fabric (Interface between Interrupt Controller and Machine)
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 5ec61ec14e68..b817ee8e3704 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -1514,10 +1514,10 @@ int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
*
* The parameters represent what is sent on the PowerBus
*/
-static bool xive_presenter_notify(XiveFabric *xfb, uint8_t format,
- uint8_t nvt_blk, uint32_t nvt_idx,
- bool cam_ignore, uint8_t priority,
- uint32_t logic_serv)
+bool xive_presenter_notify(XiveFabric *xfb, uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint8_t priority,
+ uint32_t logic_serv)
{
XiveFabricClass *xfc = XIVE_FABRIC_GET_CLASS(xfb);
XiveTCTXMatch match = { .tctx = NULL, .ring = 0 };
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (7 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 08/26] ppc/xive: Export xive_presenter_notify() Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-10 6:06 ` David Gibson
2021-08-23 15:15 ` Greg Kurz
2021-08-09 13:45 ` [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine Cédric Le Goater
` (18 subsequent siblings)
27 siblings, 2 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The XIVE2 interrupt controller of the POWER10 processor as the same
logic as on POWER9 but its SW interface has been largely reworked. The
interrupt controller has a new register interface, different BARs,
extra VSDs. These will be described when we add the device model for
the baremetal machine.
The XIVE internal structures for the EAS, END, NVT have different
layouts which is a problem for the current core XIVE framework. To
avoid adding too much complexity in the XIVE models, a new XIVE2 core
framework is introduced. It duplicates the models which are closely
linked to the XIVE internal structures : Xive2Router and
Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX
models, as they are more generic.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive2.h | 84 +++++
include/hw/ppc/xive2_regs.h | 198 +++++++++++
hw/intc/xive2.c | 672 ++++++++++++++++++++++++++++++++++++
hw/intc/meson.build | 4 +-
4 files changed, 956 insertions(+), 2 deletions(-)
create mode 100644 include/hw/ppc/xive2.h
create mode 100644 include/hw/ppc/xive2_regs.h
create mode 100644 hw/intc/xive2.c
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
new file mode 100644
index 000000000000..a14f430a09f7
--- /dev/null
+++ b/include/hw/ppc/xive2.h
@@ -0,0 +1,84 @@
+/*
+ * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
+ *
+ * Copyright (c) 2019-2021, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef PPC_XIVE2_H
+#define PPC_XIVE2_H
+
+#include "hw/ppc/xive2_regs.h"
+
+/*
+ * XIVE2 Router (POWER10)
+ */
+typedef struct Xive2Router {
+ SysBusDevice parent;
+
+ XiveFabric *xfb;
+} Xive2Router;
+
+#define TYPE_XIVE2_ROUTER TYPE_XIVE_ROUTER "2"
+#define XIVE2_ROUTER(obj) \
+ OBJECT_CHECK(Xive2Router, (obj), TYPE_XIVE2_ROUTER)
+#define XIVE2_ROUTER_CLASS(klass) \
+ OBJECT_CLASS_CHECK(Xive2RouterClass, (klass), TYPE_XIVE2_ROUTER)
+#define XIVE2_ROUTER_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
+
+typedef struct Xive2RouterClass {
+ SysBusDeviceClass parent;
+
+ /* XIVE table accessors */
+ int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ Xive2Eas *eas);
+ int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end);
+ int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end, uint8_t word_number);
+ int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp);
+ int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp, uint8_t word_number);
+ uint8_t (*get_block_id)(Xive2Router *xrtr);
+} Xive2RouterClass;
+
+int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ Xive2Eas *eas);
+int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end);
+int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end, uint8_t word_number);
+int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp);
+int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp, uint8_t word_number);
+
+void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
+
+/*
+ * XIVE2 END ESBs (POWER10)
+ */
+
+#define TYPE_XIVE2_END_SOURCE TYPE_XIVE_END_SOURCE "2"
+#define XIVE2_END_SOURCE(obj) \
+ OBJECT_CHECK(Xive2EndSource, (obj), TYPE_XIVE2_END_SOURCE)
+
+typedef struct Xive2EndSource {
+ DeviceState parent;
+
+ uint32_t nr_ends;
+
+ /* ESB memory region */
+ uint32_t esb_shift;
+ MemoryRegion esb_mmio;
+
+ Xive2Router *xrtr;
+} Xive2EndSource;
+
+
+#endif /* PPC_XIVE2_H */
diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
new file mode 100644
index 000000000000..f4827f4c6d54
--- /dev/null
+++ b/include/hw/ppc/xive2_regs.h
@@ -0,0 +1,198 @@
+/*
+ * QEMU PowerPC XIVE2 internal structure definitions (POWER10)
+ *
+ * Copyright (c) 2019-2021, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#ifndef PPC_XIVE2_REGS_H
+#define PPC_XIVE2_REGS_H
+
+/*
+ * Thread Interrupt Management Area (TIMA)
+ *
+ * In Gen1 mode (P9 compat mode) word 2 is the same. However in Gen2
+ * mode (P10), the CAM line is slightly different as the VP space was
+ * increased.
+ */
+#define TM2_QW0W2_VU PPC_BIT32(0)
+#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
+#define TM2_QW1W2_VO PPC_BIT32(0)
+#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
+#define TM2_QW2W2_VP PPC_BIT32(0)
+#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
+#define TM2_QW3W2_VT PPC_BIT32(0)
+#define TM2_QW3W2_LP PPC_BIT32(6)
+#define TM2_QW3W2_LE PPC_BIT32(7)
+
+/*
+ * Event Assignment Structure (EAS)
+ */
+
+typedef struct Xive2Eas {
+ uint64_t w;
+#define EAS2_VALID PPC_BIT(0)
+#define EAS2_END_BLOCK PPC_BITMASK(4, 7) /* Destination EQ block# */
+#define EAS2_END_INDEX PPC_BITMASK(8, 31) /* Destination EQ index */
+#define EAS2_MASKED PPC_BIT(32) /* Masked */
+#define EAS2_END_DATA PPC_BITMASK(33, 63) /* written to the EQ */
+} Xive2Eas;
+
+#define xive2_eas_is_valid(eas) (be64_to_cpu((eas)->w) & EAS2_VALID)
+#define xive2_eas_is_masked(eas) (be64_to_cpu((eas)->w) & EAS2_MASKED)
+
+void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon);
+
+/*
+ * Event Notifification Descriptor (END)
+ */
+
+typedef struct Xive2End {
+ uint32_t w0;
+#define END2_W0_VALID PPC_BIT32(0) /* "v" bit */
+#define END2_W0_ENQUEUE PPC_BIT32(5) /* "q" bit */
+#define END2_W0_UCOND_NOTIFY PPC_BIT32(6) /* "n" bit */
+#define END2_W0_SILENT_ESCALATE PPC_BIT32(7) /* "s" bit */
+#define END2_W0_BACKLOG PPC_BIT32(8) /* "b" bit */
+#define END2_W0_PRECL_ESC_CTL PPC_BIT32(9) /* "p" bit */
+#define END2_W0_UNCOND_ESCALATE PPC_BIT32(10) /* "u" bit */
+#define END2_W0_ESCALATE_CTL PPC_BIT32(11) /* "e" bit */
+#define END2_W0_ADAPTIVE_ESC PPC_BIT32(12) /* "a" bit */
+#define END2_W0_ESCALATE_END PPC_BIT32(13) /* "N" bit */
+#define END2_W0_FIRMWARE1 PPC_BIT32(16) /* Owned by FW */
+#define END2_W0_FIRMWARE2 PPC_BIT32(17) /* Owned by FW */
+#define END2_W0_AEC_SIZE PPC_BITMASK32(18, 19)
+#define END2_W0_AEG_SIZE PPC_BITMASK32(20, 23)
+#define END2_W0_EQ_VG_PREDICT PPC_BITMASK32(24, 31) /* Owned by HW */
+ uint32_t w1;
+#define END2_W1_ESn PPC_BITMASK32(0, 1)
+#define END2_W1_ESn_P PPC_BIT32(0)
+#define END2_W1_ESn_Q PPC_BIT32(1)
+#define END2_W1_ESe PPC_BITMASK32(2, 3)
+#define END2_W1_ESe_P PPC_BIT32(2)
+#define END2_W1_ESe_Q PPC_BIT32(3)
+#define END2_W1_GEN_FLIPPED PPC_BIT32(8)
+#define END2_W1_GENERATION PPC_BIT32(9)
+#define END2_W1_PAGE_OFF PPC_BITMASK32(10, 31)
+ uint32_t w2;
+#define END2_W2_RESERVED PPC_BITMASK32(4, 7)
+#define END2_W2_EQ_ADDR_HI PPC_BITMASK32(8, 31)
+ uint32_t w3;
+#define END2_W3_EQ_ADDR_LO PPC_BITMASK32(0, 24)
+#define END2_W3_QSIZE PPC_BITMASK32(28, 31)
+ uint32_t w4;
+#define END2_W4_END_BLOCK PPC_BITMASK32(4, 7)
+#define END2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31)
+#define END2_W4_ESB_BLOCK PPC_BITMASK32(0, 3)
+#define END2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31)
+ uint32_t w5;
+#define END2_W5_ESC_END_DATA PPC_BITMASK32(1, 31)
+ uint32_t w6;
+#define END2_W6_FORMAT_BIT PPC_BIT32(0)
+#define END2_W6_IGNORE PPC_BIT32(1)
+#define END2_W6_VP_BLOCK PPC_BITMASK32(4, 7)
+#define END2_W6_VP_OFFSET PPC_BITMASK32(8, 31)
+#define END2_W6_VP_OFFSET_GEN1 PPC_BITMASK32(13, 31)
+ uint32_t w7;
+#define END2_W7_TOPO PPC_BITMASK32(0, 3) /* Owned by HW */
+#define END2_W7_F0_PRIORITY PPC_BITMASK32(8, 15)
+#define END2_W7_F1_LOG_SERVER_ID PPC_BITMASK32(4, 31)
+} Xive2End;
+
+#define xive2_end_is_valid(end) (be32_to_cpu((end)->w0) & END2_W0_VALID)
+#define xive2_end_is_enqueue(end) (be32_to_cpu((end)->w0) & END2_W0_ENQUEUE)
+#define xive2_end_is_notify(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_UCOND_NOTIFY)
+#define xive2_end_is_backlog(end) (be32_to_cpu((end)->w0) & END2_W0_BACKLOG)
+#define xive2_end_is_escalate(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_CTL)
+#define xive2_end_is_uncond_escalation(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_UNCOND_ESCALATE)
+#define xive2_end_is_silent_escalation(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_SILENT_ESCALATE)
+#define xive2_end_is_escalate_end(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_END)
+#define xive2_end_is_firmware1(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE1)
+#define xive2_end_is_firmware2(end) \
+ (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE2)
+
+static inline uint64_t xive2_end_qaddr(Xive2End *end)
+{
+ return ((uint64_t) be32_to_cpu(end->w2) & END2_W2_EQ_ADDR_HI) << 32 |
+ (be32_to_cpu(end->w3) & END2_W3_EQ_ADDR_LO);
+}
+
+void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon);
+void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
+ Monitor *mon);
+void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
+ Monitor *mon);
+
+/*
+ * Notification Virtual Processor (NVP)
+ */
+typedef struct Xive2Nvp {
+ uint32_t w0;
+#define NVP2_W0_VALID PPC_BIT32(0)
+#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
+ uint32_t w1;
+ uint32_t w2;
+#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
+ uint32_t w3;
+ uint32_t w4;
+#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
+#define NVP2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31) /* N:0 */
+#define NVP2_W4_ESC_END_BLOCK PPC_BITMASK32(4, 7) /* N:1 */
+#define NVP2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31) /* N:1 */
+ uint32_t w5;
+#define NVP2_W5_PSIZE PPC_BITMASK32(0, 1)
+#define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7)
+#define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31)
+ uint32_t w6;
+ uint32_t w7;
+} Xive2Nvp;
+
+#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
+
+/*
+ * The VP number space in a block is defined by the END2_W6_VP_OFFSET
+ * field of the XIVE END. When running in Gen1 mode (P9 compat mode),
+ * the VP space is reduced to (1 << 19) VPs per block
+ */
+#define XIVE2_NVP_SHIFT 24
+#define XIVE2_NVP_COUNT (1 << XIVE2_NVP_SHIFT)
+
+static inline uint32_t xive2_nvp_cam_line(uint8_t nvp_blk, uint32_t nvp_idx)
+{
+ return (nvp_blk << XIVE2_NVP_SHIFT) | nvp_idx;
+}
+
+static inline uint32_t xive2_nvp_idx(uint32_t cam_line)
+{
+ return cam_line & ((1 << XIVE2_NVP_SHIFT) - 1);
+}
+
+static inline uint32_t xive2_nvp_blk(uint32_t cam_line)
+{
+ return (cam_line >> XIVE2_NVP_SHIFT) & 0xf;
+}
+
+/*
+ * Notification Virtual Group or Crowd (NVG/NVC)
+ */
+typedef struct Xive2Nvgc {
+ uint32_t w0;
+#define NVGC2_W0_VALID PPC_BIT32(0)
+ uint32_t w1;
+ uint32_t w2;
+ uint32_t w3;
+ uint32_t w4;
+ uint32_t w5;
+ uint32_t w6;
+ uint32_t w7;
+} Xive2Nvgc;
+
+#endif /* PPC_XIVE2_REGS_H */
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
new file mode 100644
index 000000000000..b1c216b10006
--- /dev/null
+++ b/hw/intc/xive2.c
@@ -0,0 +1,672 @@
+/*
+ * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
+ *
+ * Copyright (c) 2019-2021, IBM Corporation..
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qapi/error.h"
+#include "target/ppc/cpu.h"
+#include "sysemu/cpus.h"
+#include "sysemu/dma.h"
+#include "hw/qdev-properties.h"
+#include "monitor/monitor.h"
+#include "hw/ppc/xive.h"
+#include "hw/ppc/xive2.h"
+#include "hw/ppc/xive2_regs.h"
+
+static uint8_t priority_to_ipb(uint8_t priority)
+{
+ return priority > XIVE_PRIORITY_MAX ?
+ 0 : 1 << (XIVE_PRIORITY_MAX - priority);
+}
+
+void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon)
+{
+ if (!xive2_eas_is_valid(eas)) {
+ return;
+ }
+
+ monitor_printf(mon, " %08x %s end:%02x/%04x data:%08x\n",
+ lisn, xive2_eas_is_masked(eas) ? "M" : " ",
+ (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
+ (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
+ (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
+}
+
+void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
+ Monitor *mon)
+{
+ uint64_t qaddr_base = xive2_end_qaddr(end);
+ uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
+ uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
+ uint32_t qentries = 1 << (qsize + 10);
+ int i;
+
+ /*
+ * print out the [ (qindex - (width - 1)) .. (qindex + 1)] window
+ */
+ monitor_printf(mon, " [ ");
+ qindex = (qindex - (width - 1)) & (qentries - 1);
+ for (i = 0; i < width; i++) {
+ uint64_t qaddr = qaddr_base + (qindex << 2);
+ uint32_t qdata = -1;
+
+ if (dma_memory_read(&address_space_memory, qaddr, &qdata,
+ sizeof(qdata))) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to read EQ @0x%"
+ HWADDR_PRIx "\n", qaddr);
+ return;
+ }
+ monitor_printf(mon, "%s%08x ", i == width - 1 ? "^" : "",
+ be32_to_cpu(qdata));
+ qindex = (qindex + 1) & (qentries - 1);
+ }
+ monitor_printf(mon, "]");
+}
+
+void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon)
+{
+ uint64_t qaddr_base = xive2_end_qaddr(end);
+ uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
+ uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
+ uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
+ uint32_t qentries = 1 << (qsize + 10);
+
+ uint32_t nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end->w6);
+ uint32_t nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end->w6);
+ uint8_t priority = xive_get_field32(END2_W7_F0_PRIORITY, end->w7);
+ uint8_t pq;
+
+ if (!xive2_end_is_valid(end)) {
+ return;
+ }
+
+ pq = xive_get_field32(END2_W1_ESn, end->w1);
+
+ monitor_printf(mon,
+ " %08x %c%c %c%c%c%c%c%c%c%c%c%c prio:%d nvp:%02x/%04x",
+ end_idx,
+ pq & XIVE_ESB_VAL_P ? 'P' : '-',
+ pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
+ xive2_end_is_valid(end) ? 'v' : '-',
+ xive2_end_is_enqueue(end) ? 'q' : '-',
+ xive2_end_is_notify(end) ? 'n' : '-',
+ xive2_end_is_backlog(end) ? 'b' : '-',
+ xive2_end_is_escalate(end) ? 'e' : '-',
+ xive2_end_is_escalate_end(end) ? 'N' : '-',
+ xive2_end_is_uncond_escalation(end) ? 'u' : '-',
+ xive2_end_is_silent_escalation(end) ? 's' : '-',
+ xive2_end_is_firmware1(end) ? 'f' : '-',
+ xive2_end_is_firmware2(end) ? 'F' : '-',
+ priority, nvp_blk, nvp_idx);
+
+ if (qaddr_base) {
+ monitor_printf(mon, " eq:@%08"PRIx64"% 6d/%5d ^%d",
+ qaddr_base, qindex, qentries, qgen);
+ xive2_end_queue_pic_print_info(end, 6, mon);
+ }
+ monitor_printf(mon, "\n");
+}
+
+void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
+ Monitor *mon)
+{
+ Xive2Eas *eas = (Xive2Eas *) &end->w4;
+ uint8_t pq;
+
+ if (!xive2_end_is_escalate(end)) {
+ return;
+ }
+
+ pq = xive_get_field32(END2_W1_ESe, end->w1);
+
+ monitor_printf(mon, " %08x %c%c %c%c end:%02x/%04x data:%08x\n",
+ end_idx,
+ pq & XIVE_ESB_VAL_P ? 'P' : '-',
+ pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
+ xive2_eas_is_valid(eas) ? 'v' : ' ',
+ xive2_eas_is_masked(eas) ? 'M' : ' ',
+ (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
+ (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
+ (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
+}
+
+static void xive2_end_enqueue(Xive2End *end, uint32_t data)
+{
+ uint64_t qaddr_base = xive2_end_qaddr(end);
+ uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
+ uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
+ uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
+
+ uint64_t qaddr = qaddr_base + (qindex << 2);
+ uint32_t qdata = cpu_to_be32((qgen << 31) | (data & 0x7fffffff));
+ uint32_t qentries = 1 << (qsize + 10);
+
+ if (dma_memory_write(&address_space_memory, qaddr, &qdata, sizeof(qdata))) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to write END data @0x%"
+ HWADDR_PRIx "\n", qaddr);
+ return;
+ }
+
+ qindex = (qindex + 1) & (qentries - 1);
+ if (qindex == 0) {
+ qgen ^= 1;
+ end->w1 = xive_set_field32(END2_W1_GENERATION, end->w1, qgen);
+
+ /* TODO(PowerNV): reset GF bit on a cache watch operation */
+ end->w1 = xive_set_field32(END2_W1_GEN_FLIPPED, end->w1, qgen);
+ }
+ end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
+}
+/*
+ * XIVE Router (aka. Virtualization Controller or IVRE)
+ */
+
+int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ Xive2Eas *eas)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
+}
+
+int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_end(xrtr, end_blk, end_idx, end);
+}
+
+int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
+ Xive2End *end, uint8_t word_number)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->write_end(xrtr, end_blk, end_idx, end, word_number);
+}
+
+int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_nvp(xrtr, nvp_blk, nvp_idx, nvp);
+}
+
+int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp, uint8_t word_number)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number);
+}
+
+static int xive2_router_get_block_id(Xive2Router *xrtr)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_block_id(xrtr);
+}
+
+static void xive2_router_realize(DeviceState *dev, Error **errp)
+{
+ Xive2Router *xrtr = XIVE2_ROUTER(dev);
+
+ assert(xrtr->xfb);
+}
+
+/*
+ * Notification using the END ESe/ESn bit (Event State Buffer for
+ * escalation and notification). Profide futher coalescing in the
+ * Router.
+ */
+static bool xive2_router_end_es_notify(Xive2Router *xrtr, uint8_t end_blk,
+ uint32_t end_idx, Xive2End *end,
+ uint32_t end_esmask)
+{
+ uint8_t pq = xive_get_field32(end_esmask, end->w1);
+ bool notify = xive_esb_trigger(&pq);
+
+ if (pq != xive_get_field32(end_esmask, end->w1)) {
+ end->w1 = xive_set_field32(end_esmask, end->w1, pq);
+ xive2_router_write_end(xrtr, end_blk, end_idx, end, 1);
+ }
+
+ /* ESe/n[Q]=1 : end of notification */
+ return notify;
+}
+
+/*
+ * An END trigger can come from an event trigger (IPI or HW) or from
+ * another chip. We don't model the PowerBus but the END trigger
+ * message has the same parameters than in the function below.
+ */
+static void xive2_router_end_notify(Xive2Router *xrtr, uint8_t end_blk,
+ uint32_t end_idx, uint32_t end_data)
+{
+ Xive2End end;
+ uint8_t priority;
+ uint8_t format;
+ bool found;
+ Xive2Nvp nvp;
+ uint8_t nvp_blk;
+ uint32_t nvp_idx;
+
+ /* END cache lookup */
+ if (xive2_router_get_end(xrtr, end_blk, end_idx, &end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
+ end_idx);
+ return;
+ }
+
+ if (!xive2_end_is_valid(&end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
+ end_blk, end_idx);
+ return;
+ }
+
+ if (xive2_end_is_enqueue(&end)) {
+ xive2_end_enqueue(&end, end_data);
+ /* Enqueuing event data modifies the EQ toggle and index */
+ xive2_router_write_end(xrtr, end_blk, end_idx, &end, 1);
+ }
+
+ /*
+ * When the END is silent, we skip the notification part.
+ */
+ if (xive2_end_is_silent_escalation(&end)) {
+ goto do_escalation;
+ }
+
+ /*
+ * The W7 format depends on the F bit in W6. It defines the type
+ * of the notification :
+ *
+ * F=0 : single or multiple NVP notification
+ * F=1 : User level Event-Based Branch (EBB) notification, no
+ * priority
+ */
+ format = xive_get_field32(END2_W6_FORMAT_BIT, end.w6);
+ priority = xive_get_field32(END2_W7_F0_PRIORITY, end.w7);
+
+ /* The END is masked */
+ if (format == 0 && priority == 0xff) {
+ return;
+ }
+
+ /*
+ * Check the END ESn (Event State Buffer for notification) for
+ * even futher coalescing in the Router
+ */
+ if (!xive2_end_is_notify(&end)) {
+ /* ESn[Q]=1 : end of notification */
+ if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
+ &end, END2_W1_ESn)) {
+ return;
+ }
+ }
+
+ /*
+ * Follows IVPE notification
+ */
+ nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end.w6);
+ nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end.w6);
+
+ /* NVP cache lookup */
+ if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: no NVP %x/%x\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (!xive2_nvp_is_valid(&nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is invalid\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ found = xive_presenter_notify(xrtr->xfb, format, nvp_blk, nvp_idx,
+ xive_get_field32(END2_W6_IGNORE, end.w7),
+ priority,
+ xive_get_field32(END2_W7_F1_LOG_SERVER_ID, end.w7));
+
+ /* TODO: Auto EOI. */
+
+ if (found) {
+ return;
+ }
+
+ /*
+ * If no matching NVP is dispatched on a HW thread :
+ * - specific VP: update the NVP structure if backlog is activated
+ * - logical server : forward request to IVPE (not supported)
+ */
+ if (xive2_end_is_backlog(&end)) {
+ uint8_t ipb;
+
+ if (format == 1) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "XIVE: END %x/%x invalid config: F1 & backlog\n",
+ end_blk, end_idx);
+ return;
+ }
+
+ /*
+ * Record the IPB in the associated NVP structure for later
+ * use. The presenter will resend the interrupt when the vCPU
+ * is dispatched again on a HW thread.
+ */
+ ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2) |
+ priority_to_ipb(priority);
+ nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, ipb);
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
+
+ /*
+ * On HW, follows a "Broadcast Backlog" to IVPEs
+ */
+ }
+
+do_escalation:
+ /*
+ * If activated, escalate notification using the ESe PQ bits and
+ * the EAS in w4-5
+ */
+ if (!xive2_end_is_escalate(&end)) {
+ return;
+ }
+
+ /*
+ * Check the END ESe (Event State Buffer for escalation) for even
+ * futher coalescing in the Router
+ */
+ if (!xive2_end_is_uncond_escalation(&end)) {
+ /* ESe[Q]=1 : end of escalation notification */
+ if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
+ &end, END2_W1_ESe)) {
+ return;
+ }
+ }
+
+ /*
+ * The END trigger becomes an Escalation trigger
+ */
+ xive2_router_end_notify(xrtr,
+ xive_get_field32(END2_W4_END_BLOCK, end.w4),
+ xive_get_field32(END2_W4_ESC_END_INDEX, end.w4),
+ xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
+}
+
+void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
+{
+ Xive2Router *xrtr = XIVE2_ROUTER(xn);
+ uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
+ uint32_t eas_idx = XIVE_EAS_INDEX(lisn);
+ Xive2Eas eas;
+
+ /* EAS cache lookup */
+ if (xive2_router_get_eas(xrtr, eas_blk, eas_idx, &eas)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Unknown LISN %x\n", lisn);
+ return;
+ }
+
+ if (!xive2_eas_is_valid(&eas)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
+ return;
+ }
+
+ if (xive2_eas_is_masked(&eas)) {
+ /* Notification completed */
+ return;
+ }
+
+ /*
+ * The event trigger becomes an END trigger
+ */
+ xive2_router_end_notify(xrtr,
+ xive_get_field64(EAS2_END_BLOCK, eas.w),
+ xive_get_field64(EAS2_END_INDEX, eas.w),
+ xive_get_field64(EAS2_END_DATA, eas.w));
+}
+
+static Property xive2_router_properties[] = {
+ DEFINE_PROP_LINK("xive-fabric", Xive2Router, xfb,
+ TYPE_XIVE_FABRIC, XiveFabric *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void xive2_router_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
+
+ dc->desc = "XIVE2 Router Engine";
+ device_class_set_props(dc, xive2_router_properties);
+ /* Parent is SysBusDeviceClass. No need to call its realize hook */
+ dc->realize = xive2_router_realize;
+ xnc->notify = xive2_router_notify;
+}
+
+static const TypeInfo xive2_router_info = {
+ .name = TYPE_XIVE2_ROUTER,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .abstract = true,
+ .instance_size = sizeof(Xive2Router),
+ .class_size = sizeof(Xive2RouterClass),
+ .class_init = xive2_router_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_XIVE_NOTIFIER },
+ { TYPE_XIVE_PRESENTER },
+ { }
+ }
+};
+
+static inline bool addr_is_even(hwaddr addr, uint32_t shift)
+{
+ return !((addr >> shift) & 1);
+}
+
+static uint64_t xive2_end_source_read(void *opaque, hwaddr addr, unsigned size)
+{
+ Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
+ uint32_t offset = addr & 0xFFF;
+ uint8_t end_blk;
+ uint32_t end_idx;
+ Xive2End end;
+ uint32_t end_esmask;
+ uint8_t pq;
+ uint64_t ret;
+
+ /*
+ * The block id should be deduced from the load address on the END
+ * ESB MMIO but our model only supports a single block per XIVE chip.
+ */
+ end_blk = xive2_router_get_block_id(xsrc->xrtr);
+ end_idx = addr >> (xsrc->esb_shift + 1);
+
+ if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
+ end_idx);
+ return -1;
+ }
+
+ if (!xive2_end_is_valid(&end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
+ end_blk, end_idx);
+ return -1;
+ }
+
+ end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
+ END2_W1_ESe;
+ pq = xive_get_field32(end_esmask, end.w1);
+
+ switch (offset) {
+ case XIVE_ESB_LOAD_EOI ... XIVE_ESB_LOAD_EOI + 0x7FF:
+ ret = xive_esb_eoi(&pq);
+
+ /* Forward the source event notification for routing ?? */
+ break;
+
+ case XIVE_ESB_GET ... XIVE_ESB_GET + 0x3FF:
+ ret = pq;
+ break;
+
+ case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
+ case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
+ case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
+ case XIVE_ESB_SET_PQ_11 ... XIVE_ESB_SET_PQ_11 + 0x0FF:
+ ret = xive_esb_set(&pq, (offset >> 8) & 0x3);
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB load addr %d\n",
+ offset);
+ return -1;
+ }
+
+ if (pq != xive_get_field32(end_esmask, end.w1)) {
+ end.w1 = xive_set_field32(end_esmask, end.w1, pq);
+ xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
+ }
+
+ return ret;
+}
+
+static void xive2_end_source_write(void *opaque, hwaddr addr,
+ uint64_t value, unsigned size)
+{
+ Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
+ uint32_t offset = addr & 0xFFF;
+ uint8_t end_blk;
+ uint32_t end_idx;
+ Xive2End end;
+ uint32_t end_esmask;
+ uint8_t pq;
+ bool notify = false;
+
+ /*
+ * The block id should be deduced from the load address on the END
+ * ESB MMIO but our model only supports a single block per XIVE chip.
+ */
+ end_blk = xive2_router_get_block_id(xsrc->xrtr);
+ end_idx = addr >> (xsrc->esb_shift + 1);
+
+ if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
+ end_idx);
+ return;
+ }
+
+ if (!xive2_end_is_valid(&end)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
+ end_blk, end_idx);
+ return;
+ }
+
+ end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
+ END2_W1_ESe;
+ pq = xive_get_field32(end_esmask, end.w1);
+
+ switch (offset) {
+ case 0 ... 0x3FF:
+ notify = xive_esb_trigger(&pq);
+ break;
+
+ case XIVE_ESB_STORE_EOI ... XIVE_ESB_STORE_EOI + 0x3FF:
+ /* TODO: can we check StoreEOI availability from the router ? */
+ notify = xive_esb_eoi(&pq);
+ break;
+
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
+ offset);
+ return;
+ }
+
+ if (pq != xive_get_field32(end_esmask, end.w1)) {
+ end.w1 = xive_set_field32(end_esmask, end.w1, pq);
+ xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
+ }
+
+ /* TODO: Forward the source event notification for routing */
+ if (notify) {
+ ;
+ }
+}
+
+static const MemoryRegionOps xive2_end_source_ops = {
+ .read = xive2_end_source_read,
+ .write = xive2_end_source_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static void xive2_end_source_realize(DeviceState *dev, Error **errp)
+{
+ Xive2EndSource *xsrc = XIVE2_END_SOURCE(dev);
+
+ assert(xsrc->xrtr);
+
+ if (!xsrc->nr_ends) {
+ error_setg(errp, "Number of interrupt needs to be greater than 0");
+ return;
+ }
+
+ if (xsrc->esb_shift != XIVE_ESB_4K &&
+ xsrc->esb_shift != XIVE_ESB_64K) {
+ error_setg(errp, "Invalid ESB shift setting");
+ return;
+ }
+
+ /*
+ * Each END is assigned an even/odd pair of MMIO pages, the even page
+ * manages the ESn field while the odd page manages the ESe field.
+ */
+ memory_region_init_io(&xsrc->esb_mmio, OBJECT(xsrc),
+ &xive2_end_source_ops, xsrc, "xive.end",
+ (1ull << (xsrc->esb_shift + 1)) * xsrc->nr_ends);
+}
+
+static Property xive2_end_source_properties[] = {
+ DEFINE_PROP_UINT32("nr-ends", Xive2EndSource, nr_ends, 0),
+ DEFINE_PROP_UINT32("shift", Xive2EndSource, esb_shift, XIVE_ESB_64K),
+ DEFINE_PROP_LINK("xive", Xive2EndSource, xrtr, TYPE_XIVE2_ROUTER,
+ Xive2Router *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void xive2_end_source_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "XIVE END Source";
+ device_class_set_props(dc, xive2_end_source_properties);
+ dc->realize = xive2_end_source_realize;
+}
+
+static const TypeInfo xive2_end_source_info = {
+ .name = TYPE_XIVE2_END_SOURCE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(Xive2EndSource),
+ .class_init = xive2_end_source_class_init,
+};
+
+static void xive2_register_types(void)
+{
+ type_register_static(&xive2_router_info);
+ type_register_static(&xive2_end_source_info);
+}
+
+type_init(xive2_register_types)
diff --git a/hw/intc/meson.build b/hw/intc/meson.build
index 6e52a166e38a..42af518f1c48 100644
--- a/hw/intc/meson.build
+++ b/hw/intc/meson.build
@@ -39,7 +39,7 @@ specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_intc.c'))
specific_ss.add(when: 'CONFIG_OMPIC', if_true: files('ompic.c'))
specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_OPENPIC'],
if_true: files('openpic_kvm.c'))
-specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c'))
+specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c', 'pnv_xive2.c'))
specific_ss.add(when: 'CONFIG_PPC_UIC', if_true: files('ppc-uic.c'))
specific_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_ic.c', 'bcm2836_control.c'))
specific_ss.add(when: 'CONFIG_RX_ICU', if_true: files('rx_icu.c'))
@@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
-specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
+specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c', 'xive2.c'))
specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
if_true: files('xics_kvm.c'))
specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('xics_spapr.c', 'spapr_xive.c'))
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework
2021-08-09 13:45 ` [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework Cédric Le Goater
@ 2021-08-10 6:06 ` David Gibson
2021-08-10 13:04 ` Cédric Le Goater
2021-08-23 15:15 ` Greg Kurz
1 sibling, 1 reply; 49+ messages in thread
From: David Gibson @ 2021-08-10 6:06 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 39327 bytes --]
On Mon, Aug 09, 2021 at 03:45:30PM +0200, Cédric Le Goater wrote:
> The XIVE2 interrupt controller of the POWER10 processor as the same
> logic as on POWER9 but its SW interface has been largely reworked. The
> interrupt controller has a new register interface, different BARs,
> extra VSDs. These will be described when we add the device model for
> the baremetal machine.
>
> The XIVE internal structures for the EAS, END, NVT have different
> layouts which is a problem for the current core XIVE framework. To
> avoid adding too much complexity in the XIVE models, a new XIVE2 core
> framework is introduced. It duplicates the models which are closely
> linked to the XIVE internal structures : Xive2Router and
> Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX
> models, as they are more generic.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> include/hw/ppc/xive2.h | 84 +++++
> include/hw/ppc/xive2_regs.h | 198 +++++++++++
> hw/intc/xive2.c | 672 ++++++++++++++++++++++++++++++++++++
> hw/intc/meson.build | 4 +-
> 4 files changed, 956 insertions(+), 2 deletions(-)
> create mode 100644 include/hw/ppc/xive2.h
> create mode 100644 include/hw/ppc/xive2_regs.h
> create mode 100644 hw/intc/xive2.c
>
> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
> new file mode 100644
> index 000000000000..a14f430a09f7
> --- /dev/null
> +++ b/include/hw/ppc/xive2.h
> @@ -0,0 +1,84 @@
> +/*
> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation.
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + *
> + */
> +
> +#ifndef PPC_XIVE2_H
> +#define PPC_XIVE2_H
> +
> +#include "hw/ppc/xive2_regs.h"
> +
> +/*
> + * XIVE2 Router (POWER10)
> + */
> +typedef struct Xive2Router {
> + SysBusDevice parent;
> +
> + XiveFabric *xfb;
> +} Xive2Router;
> +
> +#define TYPE_XIVE2_ROUTER TYPE_XIVE_ROUTER "2"
> +#define XIVE2_ROUTER(obj) \
> + OBJECT_CHECK(Xive2Router, (obj), TYPE_XIVE2_ROUTER)
> +#define XIVE2_ROUTER_CLASS(klass) \
> + OBJECT_CLASS_CHECK(Xive2RouterClass, (klass), TYPE_XIVE2_ROUTER)
> +#define XIVE2_ROUTER_GET_CLASS(obj) \
> + OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
> +
> +typedef struct Xive2RouterClass {
> + SysBusDeviceClass parent;
> +
> + /* XIVE table accessors */
> + int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas);
> + int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end);
> + int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number);
> + int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp);
> + int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number);
> + uint8_t (*get_block_id)(Xive2Router *xrtr);
> +} Xive2RouterClass;
> +
> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas);
> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end);
> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number);
> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp);
> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number);
> +
> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
> +
> +/*
> + * XIVE2 END ESBs (POWER10)
> + */
> +
> +#define TYPE_XIVE2_END_SOURCE TYPE_XIVE_END_SOURCE "2"
> +#define XIVE2_END_SOURCE(obj) \
> + OBJECT_CHECK(Xive2EndSource, (obj), TYPE_XIVE2_END_SOURCE)
> +
> +typedef struct Xive2EndSource {
> + DeviceState parent;
> +
> + uint32_t nr_ends;
> +
> + /* ESB memory region */
> + uint32_t esb_shift;
> + MemoryRegion esb_mmio;
> +
> + Xive2Router *xrtr;
> +} Xive2EndSource;
> +
> +
> +#endif /* PPC_XIVE2_H */
> diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
> new file mode 100644
> index 000000000000..f4827f4c6d54
> --- /dev/null
> +++ b/include/hw/ppc/xive2_regs.h
> @@ -0,0 +1,198 @@
> +/*
> + * QEMU PowerPC XIVE2 internal structure definitions (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation.
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + */
> +
> +#ifndef PPC_XIVE2_REGS_H
> +#define PPC_XIVE2_REGS_H
> +
> +/*
> + * Thread Interrupt Management Area (TIMA)
> + *
> + * In Gen1 mode (P9 compat mode) word 2 is the same. However in Gen2
> + * mode (P10), the CAM line is slightly different as the VP space was
> + * increased.
> + */
> +#define TM2_QW0W2_VU PPC_BIT32(0)
> +#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
> +#define TM2_QW1W2_VO PPC_BIT32(0)
> +#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
> +#define TM2_QW2W2_VP PPC_BIT32(0)
> +#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
> +#define TM2_QW3W2_VT PPC_BIT32(0)
> +#define TM2_QW3W2_LP PPC_BIT32(6)
> +#define TM2_QW3W2_LE PPC_BIT32(7)
> +
> +/*
> + * Event Assignment Structure (EAS)
> + */
> +
> +typedef struct Xive2Eas {
> + uint64_t w;
> +#define EAS2_VALID PPC_BIT(0)
> +#define EAS2_END_BLOCK PPC_BITMASK(4, 7) /* Destination EQ block# */
> +#define EAS2_END_INDEX PPC_BITMASK(8, 31) /* Destination EQ index */
> +#define EAS2_MASKED PPC_BIT(32) /* Masked */
> +#define EAS2_END_DATA PPC_BITMASK(33, 63) /* written to the EQ */
> +} Xive2Eas;
> +
> +#define xive2_eas_is_valid(eas) (be64_to_cpu((eas)->w) & EAS2_VALID)
> +#define xive2_eas_is_masked(eas) (be64_to_cpu((eas)->w) & EAS2_MASKED)
> +
> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon);
> +
> +/*
> + * Event Notifification Descriptor (END)
> + */
> +
> +typedef struct Xive2End {
> + uint32_t w0;
> +#define END2_W0_VALID PPC_BIT32(0) /* "v" bit */
> +#define END2_W0_ENQUEUE PPC_BIT32(5) /* "q" bit */
> +#define END2_W0_UCOND_NOTIFY PPC_BIT32(6) /* "n" bit */
> +#define END2_W0_SILENT_ESCALATE PPC_BIT32(7) /* "s" bit */
> +#define END2_W0_BACKLOG PPC_BIT32(8) /* "b" bit */
> +#define END2_W0_PRECL_ESC_CTL PPC_BIT32(9) /* "p" bit */
> +#define END2_W0_UNCOND_ESCALATE PPC_BIT32(10) /* "u" bit */
> +#define END2_W0_ESCALATE_CTL PPC_BIT32(11) /* "e" bit */
> +#define END2_W0_ADAPTIVE_ESC PPC_BIT32(12) /* "a" bit */
> +#define END2_W0_ESCALATE_END PPC_BIT32(13) /* "N" bit */
> +#define END2_W0_FIRMWARE1 PPC_BIT32(16) /* Owned by FW */
> +#define END2_W0_FIRMWARE2 PPC_BIT32(17) /* Owned by FW */
> +#define END2_W0_AEC_SIZE PPC_BITMASK32(18, 19)
> +#define END2_W0_AEG_SIZE PPC_BITMASK32(20, 23)
> +#define END2_W0_EQ_VG_PREDICT PPC_BITMASK32(24, 31) /* Owned by HW */
> + uint32_t w1;
> +#define END2_W1_ESn PPC_BITMASK32(0, 1)
> +#define END2_W1_ESn_P PPC_BIT32(0)
> +#define END2_W1_ESn_Q PPC_BIT32(1)
> +#define END2_W1_ESe PPC_BITMASK32(2, 3)
> +#define END2_W1_ESe_P PPC_BIT32(2)
> +#define END2_W1_ESe_Q PPC_BIT32(3)
> +#define END2_W1_GEN_FLIPPED PPC_BIT32(8)
> +#define END2_W1_GENERATION PPC_BIT32(9)
> +#define END2_W1_PAGE_OFF PPC_BITMASK32(10, 31)
> + uint32_t w2;
> +#define END2_W2_RESERVED PPC_BITMASK32(4, 7)
> +#define END2_W2_EQ_ADDR_HI PPC_BITMASK32(8, 31)
> + uint32_t w3;
> +#define END2_W3_EQ_ADDR_LO PPC_BITMASK32(0, 24)
> +#define END2_W3_QSIZE PPC_BITMASK32(28, 31)
> + uint32_t w4;
> +#define END2_W4_END_BLOCK PPC_BITMASK32(4, 7)
> +#define END2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31)
> +#define END2_W4_ESB_BLOCK PPC_BITMASK32(0, 3)
> +#define END2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31)
> + uint32_t w5;
> +#define END2_W5_ESC_END_DATA PPC_BITMASK32(1, 31)
> + uint32_t w6;
> +#define END2_W6_FORMAT_BIT PPC_BIT32(0)
> +#define END2_W6_IGNORE PPC_BIT32(1)
> +#define END2_W6_VP_BLOCK PPC_BITMASK32(4, 7)
> +#define END2_W6_VP_OFFSET PPC_BITMASK32(8, 31)
> +#define END2_W6_VP_OFFSET_GEN1 PPC_BITMASK32(13, 31)
> + uint32_t w7;
> +#define END2_W7_TOPO PPC_BITMASK32(0, 3) /* Owned by HW */
> +#define END2_W7_F0_PRIORITY PPC_BITMASK32(8, 15)
> +#define END2_W7_F1_LOG_SERVER_ID PPC_BITMASK32(4, 31)
> +} Xive2End;
> +
> +#define xive2_end_is_valid(end) (be32_to_cpu((end)->w0) & END2_W0_VALID)
> +#define xive2_end_is_enqueue(end) (be32_to_cpu((end)->w0) & END2_W0_ENQUEUE)
> +#define xive2_end_is_notify(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_UCOND_NOTIFY)
> +#define xive2_end_is_backlog(end) (be32_to_cpu((end)->w0) & END2_W0_BACKLOG)
> +#define xive2_end_is_escalate(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_CTL)
> +#define xive2_end_is_uncond_escalation(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_UNCOND_ESCALATE)
> +#define xive2_end_is_silent_escalation(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_SILENT_ESCALATE)
> +#define xive2_end_is_escalate_end(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_END)
> +#define xive2_end_is_firmware1(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE1)
> +#define xive2_end_is_firmware2(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE2)
> +
> +static inline uint64_t xive2_end_qaddr(Xive2End *end)
> +{
> + return ((uint64_t) be32_to_cpu(end->w2) & END2_W2_EQ_ADDR_HI) << 32 |
> + (be32_to_cpu(end->w3) & END2_W3_EQ_ADDR_LO);
> +}
> +
> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon);
> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
> + Monitor *mon);
> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
> + Monitor *mon);
> +
> +/*
> + * Notification Virtual Processor (NVP)
> + */
> +typedef struct Xive2Nvp {
> + uint32_t w0;
> +#define NVP2_W0_VALID PPC_BIT32(0)
> +#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
> + uint32_t w1;
> + uint32_t w2;
> +#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
> + uint32_t w3;
> + uint32_t w4;
> +#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
> +#define NVP2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31) /* N:0 */
> +#define NVP2_W4_ESC_END_BLOCK PPC_BITMASK32(4, 7) /* N:1 */
> +#define NVP2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31) /* N:1 */
> + uint32_t w5;
> +#define NVP2_W5_PSIZE PPC_BITMASK32(0, 1)
> +#define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7)
> +#define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31)
> + uint32_t w6;
> + uint32_t w7;
> +} Xive2Nvp;
> +
> +#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
> +
> +/*
> + * The VP number space in a block is defined by the END2_W6_VP_OFFSET
> + * field of the XIVE END. When running in Gen1 mode (P9 compat mode),
> + * the VP space is reduced to (1 << 19) VPs per block
> + */
> +#define XIVE2_NVP_SHIFT 24
> +#define XIVE2_NVP_COUNT (1 << XIVE2_NVP_SHIFT)
> +
> +static inline uint32_t xive2_nvp_cam_line(uint8_t nvp_blk, uint32_t nvp_idx)
> +{
> + return (nvp_blk << XIVE2_NVP_SHIFT) | nvp_idx;
> +}
> +
> +static inline uint32_t xive2_nvp_idx(uint32_t cam_line)
> +{
> + return cam_line & ((1 << XIVE2_NVP_SHIFT) - 1);
> +}
> +
> +static inline uint32_t xive2_nvp_blk(uint32_t cam_line)
> +{
> + return (cam_line >> XIVE2_NVP_SHIFT) & 0xf;
> +}
> +
> +/*
> + * Notification Virtual Group or Crowd (NVG/NVC)
> + */
> +typedef struct Xive2Nvgc {
> + uint32_t w0;
> +#define NVGC2_W0_VALID PPC_BIT32(0)
> + uint32_t w1;
> + uint32_t w2;
> + uint32_t w3;
> + uint32_t w4;
> + uint32_t w5;
> + uint32_t w6;
> + uint32_t w7;
> +} Xive2Nvgc;
> +
> +#endif /* PPC_XIVE2_REGS_H */
> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
> new file mode 100644
> index 000000000000..b1c216b10006
> --- /dev/null
> +++ b/hw/intc/xive2.c
> @@ -0,0 +1,672 @@
> +/*
> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation..
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qemu/log.h"
> +#include "qemu/module.h"
> +#include "qapi/error.h"
> +#include "target/ppc/cpu.h"
> +#include "sysemu/cpus.h"
> +#include "sysemu/dma.h"
> +#include "hw/qdev-properties.h"
> +#include "monitor/monitor.h"
> +#include "hw/ppc/xive.h"
> +#include "hw/ppc/xive2.h"
> +#include "hw/ppc/xive2_regs.h"
> +
> +static uint8_t priority_to_ipb(uint8_t priority)
> +{
> + return priority > XIVE_PRIORITY_MAX ?
> + 0 : 1 << (XIVE_PRIORITY_MAX - priority);
> +}
This is identical to the XIVE1 version, couldn't you share it by
putting it in a header?
> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon)
> +{
> + if (!xive2_eas_is_valid(eas)) {
> + return;
> + }
> +
> + monitor_printf(mon, " %08x %s end:%02x/%04x data:%08x\n",
> + lisn, xive2_eas_is_masked(eas) ? "M" : " ",
> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
> +}
> +
> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
> + Monitor *mon)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qentries = 1 << (qsize + 10);
> + int i;
> +
> + /*
> + * print out the [ (qindex - (width - 1)) .. (qindex + 1)] window
> + */
> + monitor_printf(mon, " [ ");
> + qindex = (qindex - (width - 1)) & (qentries - 1);
> + for (i = 0; i < width; i++) {
> + uint64_t qaddr = qaddr_base + (qindex << 2);
> + uint32_t qdata = -1;
> +
> + if (dma_memory_read(&address_space_memory, qaddr, &qdata,
> + sizeof(qdata))) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to read EQ @0x%"
> + HWADDR_PRIx "\n", qaddr);
> + return;
> + }
> + monitor_printf(mon, "%s%08x ", i == width - 1 ? "^" : "",
> + be32_to_cpu(qdata));
> + qindex = (qindex + 1) & (qentries - 1);
> + }
> + monitor_printf(mon, "]");
> +}
> +
> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qentries = 1 << (qsize + 10);
> +
> + uint32_t nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end->w6);
> + uint32_t nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end->w6);
> + uint8_t priority = xive_get_field32(END2_W7_F0_PRIORITY, end->w7);
> + uint8_t pq;
> +
> + if (!xive2_end_is_valid(end)) {
> + return;
> + }
> +
> + pq = xive_get_field32(END2_W1_ESn, end->w1);
> +
> + monitor_printf(mon,
> + " %08x %c%c %c%c%c%c%c%c%c%c%c%c prio:%d nvp:%02x/%04x",
> + end_idx,
> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
> + xive2_end_is_valid(end) ? 'v' : '-',
> + xive2_end_is_enqueue(end) ? 'q' : '-',
> + xive2_end_is_notify(end) ? 'n' : '-',
> + xive2_end_is_backlog(end) ? 'b' : '-',
> + xive2_end_is_escalate(end) ? 'e' : '-',
> + xive2_end_is_escalate_end(end) ? 'N' : '-',
> + xive2_end_is_uncond_escalation(end) ? 'u' : '-',
> + xive2_end_is_silent_escalation(end) ? 's' : '-',
> + xive2_end_is_firmware1(end) ? 'f' : '-',
> + xive2_end_is_firmware2(end) ? 'F' : '-',
> + priority, nvp_blk, nvp_idx);
> +
> + if (qaddr_base) {
> + monitor_printf(mon, " eq:@%08"PRIx64"% 6d/%5d ^%d",
> + qaddr_base, qindex, qentries, qgen);
> + xive2_end_queue_pic_print_info(end, 6, mon);
> + }
> + monitor_printf(mon, "\n");
> +}
> +
> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
> + Monitor *mon)
> +{
> + Xive2Eas *eas = (Xive2Eas *) &end->w4;
> + uint8_t pq;
> +
> + if (!xive2_end_is_escalate(end)) {
> + return;
> + }
> +
> + pq = xive_get_field32(END2_W1_ESe, end->w1);
> +
> + monitor_printf(mon, " %08x %c%c %c%c end:%02x/%04x data:%08x\n",
> + end_idx,
> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
> + xive2_eas_is_valid(eas) ? 'v' : ' ',
> + xive2_eas_is_masked(eas) ? 'M' : ' ',
> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
> +}
> +
> +static void xive2_end_enqueue(Xive2End *end, uint32_t data)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
> +
> + uint64_t qaddr = qaddr_base + (qindex << 2);
> + uint32_t qdata = cpu_to_be32((qgen << 31) | (data & 0x7fffffff));
> + uint32_t qentries = 1 << (qsize + 10);
> +
> + if (dma_memory_write(&address_space_memory, qaddr, &qdata, sizeof(qdata))) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to write END data @0x%"
> + HWADDR_PRIx "\n", qaddr);
> + return;
> + }
> +
> + qindex = (qindex + 1) & (qentries - 1);
> + if (qindex == 0) {
> + qgen ^= 1;
> + end->w1 = xive_set_field32(END2_W1_GENERATION, end->w1, qgen);
> +
> + /* TODO(PowerNV): reset GF bit on a cache watch operation */
> + end->w1 = xive_set_field32(END2_W1_GEN_FLIPPED, end->w1, qgen);
> + }
> + end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
> +}
> +/*
> + * XIVE Router (aka. Virtualization Controller or IVRE)
> + */
> +
> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
> +}
> +
> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_end(xrtr, end_blk, end_idx, end);
> +}
> +
> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->write_end(xrtr, end_blk, end_idx, end, word_number);
> +}
> +
> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_nvp(xrtr, nvp_blk, nvp_idx, nvp);
> +}
> +
> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number);
> +}
> +
> +static int xive2_router_get_block_id(Xive2Router *xrtr)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_block_id(xrtr);
> +}
> +
> +static void xive2_router_realize(DeviceState *dev, Error **errp)
> +{
> + Xive2Router *xrtr = XIVE2_ROUTER(dev);
> +
> + assert(xrtr->xfb);
> +}
> +
> +/*
> + * Notification using the END ESe/ESn bit (Event State Buffer for
> + * escalation and notification). Profide futher coalescing in the
> + * Router.
> + */
> +static bool xive2_router_end_es_notify(Xive2Router *xrtr, uint8_t end_blk,
> + uint32_t end_idx, Xive2End *end,
> + uint32_t end_esmask)
> +{
> + uint8_t pq = xive_get_field32(end_esmask, end->w1);
> + bool notify = xive_esb_trigger(&pq);
> +
> + if (pq != xive_get_field32(end_esmask, end->w1)) {
> + end->w1 = xive_set_field32(end_esmask, end->w1, pq);
> + xive2_router_write_end(xrtr, end_blk, end_idx, end, 1);
> + }
> +
> + /* ESe/n[Q]=1 : end of notification */
> + return notify;
> +}
> +
> +/*
> + * An END trigger can come from an event trigger (IPI or HW) or from
> + * another chip. We don't model the PowerBus but the END trigger
> + * message has the same parameters than in the function below.
> + */
> +static void xive2_router_end_notify(Xive2Router *xrtr, uint8_t end_blk,
> + uint32_t end_idx, uint32_t end_data)
> +{
> + Xive2End end;
> + uint8_t priority;
> + uint8_t format;
> + bool found;
> + Xive2Nvp nvp;
> + uint8_t nvp_blk;
> + uint32_t nvp_idx;
> +
> + /* END cache lookup */
> + if (xive2_router_get_end(xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + if (xive2_end_is_enqueue(&end)) {
> + xive2_end_enqueue(&end, end_data);
> + /* Enqueuing event data modifies the EQ toggle and index */
> + xive2_router_write_end(xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + /*
> + * When the END is silent, we skip the notification part.
> + */
> + if (xive2_end_is_silent_escalation(&end)) {
> + goto do_escalation;
> + }
> +
> + /*
> + * The W7 format depends on the F bit in W6. It defines the type
> + * of the notification :
> + *
> + * F=0 : single or multiple NVP notification
> + * F=1 : User level Event-Based Branch (EBB) notification, no
> + * priority
> + */
> + format = xive_get_field32(END2_W6_FORMAT_BIT, end.w6);
> + priority = xive_get_field32(END2_W7_F0_PRIORITY, end.w7);
> +
> + /* The END is masked */
> + if (format == 0 && priority == 0xff) {
> + return;
> + }
> +
> + /*
> + * Check the END ESn (Event State Buffer for notification) for
> + * even futher coalescing in the Router
> + */
> + if (!xive2_end_is_notify(&end)) {
> + /* ESn[Q]=1 : end of notification */
> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
> + &end, END2_W1_ESn)) {
> + return;
> + }
> + }
> +
> + /*
> + * Follows IVPE notification
> + */
> + nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end.w6);
> + nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end.w6);
> +
> + /* NVP cache lookup */
> + if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: no NVP %x/%x\n",
> + nvp_blk, nvp_idx);
> + return;
> + }
> +
> + if (!xive2_nvp_is_valid(&nvp)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is invalid\n",
> + nvp_blk, nvp_idx);
> + return;
> + }
> +
> + found = xive_presenter_notify(xrtr->xfb, format, nvp_blk, nvp_idx,
> + xive_get_field32(END2_W6_IGNORE, end.w7),
> + priority,
> + xive_get_field32(END2_W7_F1_LOG_SERVER_ID, end.w7));
> +
> + /* TODO: Auto EOI. */
> +
> + if (found) {
> + return;
> + }
> +
> + /*
> + * If no matching NVP is dispatched on a HW thread :
> + * - specific VP: update the NVP structure if backlog is activated
> + * - logical server : forward request to IVPE (not supported)
> + */
> + if (xive2_end_is_backlog(&end)) {
> + uint8_t ipb;
> +
> + if (format == 1) {
> + qemu_log_mask(LOG_GUEST_ERROR,
> + "XIVE: END %x/%x invalid config: F1 & backlog\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + /*
> + * Record the IPB in the associated NVP structure for later
> + * use. The presenter will resend the interrupt when the vCPU
> + * is dispatched again on a HW thread.
> + */
> + ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2) |
> + priority_to_ipb(priority);
> + nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, ipb);
> + xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
> +
> + /*
> + * On HW, follows a "Broadcast Backlog" to IVPEs
> + */
> + }
> +
> +do_escalation:
> + /*
> + * If activated, escalate notification using the ESe PQ bits and
> + * the EAS in w4-5
> + */
> + if (!xive2_end_is_escalate(&end)) {
> + return;
> + }
> +
> + /*
> + * Check the END ESe (Event State Buffer for escalation) for even
> + * futher coalescing in the Router
> + */
> + if (!xive2_end_is_uncond_escalation(&end)) {
> + /* ESe[Q]=1 : end of escalation notification */
> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
> + &end, END2_W1_ESe)) {
> + return;
> + }
> + }
> +
> + /*
> + * The END trigger becomes an Escalation trigger
> + */
> + xive2_router_end_notify(xrtr,
> + xive_get_field32(END2_W4_END_BLOCK, end.w4),
> + xive_get_field32(END2_W4_ESC_END_INDEX, end.w4),
> + xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
> +}
> +
> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
> +{
> + Xive2Router *xrtr = XIVE2_ROUTER(xn);
> + uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
> + uint32_t eas_idx = XIVE_EAS_INDEX(lisn);
> + Xive2Eas eas;
> +
> + /* EAS cache lookup */
> + if (xive2_router_get_eas(xrtr, eas_blk, eas_idx, &eas)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Unknown LISN %x\n", lisn);
> + return;
> + }
> +
> + if (!xive2_eas_is_valid(&eas)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
> + return;
> + }
> +
> + if (xive2_eas_is_masked(&eas)) {
> + /* Notification completed */
> + return;
> + }
> +
> + /*
> + * The event trigger becomes an END trigger
> + */
> + xive2_router_end_notify(xrtr,
> + xive_get_field64(EAS2_END_BLOCK, eas.w),
> + xive_get_field64(EAS2_END_INDEX, eas.w),
> + xive_get_field64(EAS2_END_DATA, eas.w));
> +}
> +
> +static Property xive2_router_properties[] = {
> + DEFINE_PROP_LINK("xive-fabric", Xive2Router, xfb,
> + TYPE_XIVE_FABRIC, XiveFabric *),
> + DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void xive2_router_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> + XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
> +
> + dc->desc = "XIVE2 Router Engine";
> + device_class_set_props(dc, xive2_router_properties);
> + /* Parent is SysBusDeviceClass. No need to call its realize hook */
> + dc->realize = xive2_router_realize;
> + xnc->notify = xive2_router_notify;
> +}
> +
> +static const TypeInfo xive2_router_info = {
> + .name = TYPE_XIVE2_ROUTER,
> + .parent = TYPE_SYS_BUS_DEVICE,
> + .abstract = true,
> + .instance_size = sizeof(Xive2Router),
> + .class_size = sizeof(Xive2RouterClass),
> + .class_init = xive2_router_class_init,
> + .interfaces = (InterfaceInfo[]) {
> + { TYPE_XIVE_NOTIFIER },
> + { TYPE_XIVE_PRESENTER },
> + { }
> + }
> +};
> +
> +static inline bool addr_is_even(hwaddr addr, uint32_t shift)
> +{
> + return !((addr >> shift) & 1);
> +}
> +
> +static uint64_t xive2_end_source_read(void *opaque, hwaddr addr, unsigned size)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
> + uint32_t offset = addr & 0xFFF;
> + uint8_t end_blk;
> + uint32_t end_idx;
> + Xive2End end;
> + uint32_t end_esmask;
> + uint8_t pq;
> + uint64_t ret;
> +
> + /*
> + * The block id should be deduced from the load address on the END
> + * ESB MMIO but our model only supports a single block per XIVE chip.
> + */
> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
> + end_idx = addr >> (xsrc->esb_shift + 1);
> +
> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return -1;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return -1;
> + }
> +
> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
> + END2_W1_ESe;
> + pq = xive_get_field32(end_esmask, end.w1);
> +
> + switch (offset) {
> + case XIVE_ESB_LOAD_EOI ... XIVE_ESB_LOAD_EOI + 0x7FF:
> + ret = xive_esb_eoi(&pq);
> +
> + /* Forward the source event notification for routing ?? */
> + break;
> +
> + case XIVE_ESB_GET ... XIVE_ESB_GET + 0x3FF:
> + ret = pq;
> + break;
> +
> + case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
> + case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
> + case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
> + case XIVE_ESB_SET_PQ_11 ... XIVE_ESB_SET_PQ_11 + 0x0FF:
> + ret = xive_esb_set(&pq, (offset >> 8) & 0x3);
> + break;
> + default:
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB load addr %d\n",
> + offset);
> + return -1;
> + }
> +
> + if (pq != xive_get_field32(end_esmask, end.w1)) {
> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + return ret;
> +}
> +
> +static void xive2_end_source_write(void *opaque, hwaddr addr,
> + uint64_t value, unsigned size)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
> + uint32_t offset = addr & 0xFFF;
> + uint8_t end_blk;
> + uint32_t end_idx;
> + Xive2End end;
> + uint32_t end_esmask;
> + uint8_t pq;
> + bool notify = false;
> +
> + /*
> + * The block id should be deduced from the load address on the END
> + * ESB MMIO but our model only supports a single block per XIVE chip.
> + */
> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
> + end_idx = addr >> (xsrc->esb_shift + 1);
> +
> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
> + END2_W1_ESe;
> + pq = xive_get_field32(end_esmask, end.w1);
> +
> + switch (offset) {
> + case 0 ... 0x3FF:
> + notify = xive_esb_trigger(&pq);
> + break;
> +
> + case XIVE_ESB_STORE_EOI ... XIVE_ESB_STORE_EOI + 0x3FF:
> + /* TODO: can we check StoreEOI availability from the router ? */
> + notify = xive_esb_eoi(&pq);
> + break;
> +
> + default:
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
> + offset);
> + return;
> + }
> +
> + if (pq != xive_get_field32(end_esmask, end.w1)) {
> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + /* TODO: Forward the source event notification for routing */
> + if (notify) {
> + ;
> + }
> +}
> +
> +static const MemoryRegionOps xive2_end_source_ops = {
> + .read = xive2_end_source_read,
> + .write = xive2_end_source_write,
> + .endianness = DEVICE_BIG_ENDIAN,
> + .valid = {
> + .min_access_size = 8,
> + .max_access_size = 8,
> + },
> + .impl = {
> + .min_access_size = 8,
> + .max_access_size = 8,
> + },
> +};
> +
> +static void xive2_end_source_realize(DeviceState *dev, Error **errp)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(dev);
> +
> + assert(xsrc->xrtr);
> +
> + if (!xsrc->nr_ends) {
> + error_setg(errp, "Number of interrupt needs to be greater than 0");
> + return;
> + }
> +
> + if (xsrc->esb_shift != XIVE_ESB_4K &&
> + xsrc->esb_shift != XIVE_ESB_64K) {
> + error_setg(errp, "Invalid ESB shift setting");
> + return;
> + }
> +
> + /*
> + * Each END is assigned an even/odd pair of MMIO pages, the even page
> + * manages the ESn field while the odd page manages the ESe field.
> + */
> + memory_region_init_io(&xsrc->esb_mmio, OBJECT(xsrc),
> + &xive2_end_source_ops, xsrc, "xive.end",
> + (1ull << (xsrc->esb_shift + 1)) * xsrc->nr_ends);
> +}
> +
> +static Property xive2_end_source_properties[] = {
> + DEFINE_PROP_UINT32("nr-ends", Xive2EndSource, nr_ends, 0),
> + DEFINE_PROP_UINT32("shift", Xive2EndSource, esb_shift, XIVE_ESB_64K),
> + DEFINE_PROP_LINK("xive", Xive2EndSource, xrtr, TYPE_XIVE2_ROUTER,
> + Xive2Router *),
> + DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void xive2_end_source_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> +
> + dc->desc = "XIVE END Source";
> + device_class_set_props(dc, xive2_end_source_properties);
> + dc->realize = xive2_end_source_realize;
> +}
> +
> +static const TypeInfo xive2_end_source_info = {
> + .name = TYPE_XIVE2_END_SOURCE,
> + .parent = TYPE_DEVICE,
> + .instance_size = sizeof(Xive2EndSource),
> + .class_init = xive2_end_source_class_init,
> +};
> +
> +static void xive2_register_types(void)
> +{
> + type_register_static(&xive2_router_info);
> + type_register_static(&xive2_end_source_info);
> +}
> +
> +type_init(xive2_register_types)
> diff --git a/hw/intc/meson.build b/hw/intc/meson.build
> index 6e52a166e38a..42af518f1c48 100644
> --- a/hw/intc/meson.build
> +++ b/hw/intc/meson.build
> @@ -39,7 +39,7 @@ specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_intc.c'))
> specific_ss.add(when: 'CONFIG_OMPIC', if_true: files('ompic.c'))
> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_OPENPIC'],
> if_true: files('openpic_kvm.c'))
> -specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c'))
> +specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c', 'pnv_xive2.c'))
> specific_ss.add(when: 'CONFIG_PPC_UIC', if_true: files('ppc-uic.c'))
> specific_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_ic.c', 'bcm2836_control.c'))
> specific_ss.add(when: 'CONFIG_RX_ICU', if_true: files('rx_icu.c'))
> @@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
> specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
> specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
> specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
> -specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
> +specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c', 'xive2.c'))
> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
> if_true: files('xics_kvm.c'))
> specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('xics_spapr.c', 'spapr_xive.c'))
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework
2021-08-10 6:06 ` David Gibson
@ 2021-08-10 13:04 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-10 13:04 UTC (permalink / raw)
To: David Gibson; +Cc: qemu-ppc, Greg Kurz, qemu-devel
On 8/10/21 8:06 AM, David Gibson wrote:
> On Mon, Aug 09, 2021 at 03:45:30PM +0200, Cédric Le Goater wrote:
>> The XIVE2 interrupt controller of the POWER10 processor as the same
>> logic as on POWER9 but its SW interface has been largely reworked. The
>> interrupt controller has a new register interface, different BARs,
>> extra VSDs. These will be described when we add the device model for
>> the baremetal machine.
>>
>> The XIVE internal structures for the EAS, END, NVT have different
>> layouts which is a problem for the current core XIVE framework. To
>> avoid adding too much complexity in the XIVE models, a new XIVE2 core
>> framework is introduced. It duplicates the models which are closely
>> linked to the XIVE internal structures : Xive2Router and
>> Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX
>> models, as they are more generic.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> include/hw/ppc/xive2.h | 84 +++++
>> include/hw/ppc/xive2_regs.h | 198 +++++++++++
>> hw/intc/xive2.c | 672 ++++++++++++++++++++++++++++++++++++
>> hw/intc/meson.build | 4 +-
>> 4 files changed, 956 insertions(+), 2 deletions(-)
>> create mode 100644 include/hw/ppc/xive2.h
>> create mode 100644 include/hw/ppc/xive2_regs.h
>> create mode 100644 hw/intc/xive2.c
>>
>> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
>> new file mode 100644
>> index 000000000000..a14f430a09f7
>> --- /dev/null
>> +++ b/include/hw/ppc/xive2.h
>> @@ -0,0 +1,84 @@
>> +/*
>> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation.
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + *
>> + */
>> +
>> +#ifndef PPC_XIVE2_H
>> +#define PPC_XIVE2_H
>> +
>> +#include "hw/ppc/xive2_regs.h"
>> +
>> +/*
>> + * XIVE2 Router (POWER10)
>> + */
>> +typedef struct Xive2Router {
>> + SysBusDevice parent;
>> +
>> + XiveFabric *xfb;
>> +} Xive2Router;
>> +
>> +#define TYPE_XIVE2_ROUTER TYPE_XIVE_ROUTER "2"
>> +#define XIVE2_ROUTER(obj) \
>> + OBJECT_CHECK(Xive2Router, (obj), TYPE_XIVE2_ROUTER)
>> +#define XIVE2_ROUTER_CLASS(klass) \
>> + OBJECT_CLASS_CHECK(Xive2RouterClass, (klass), TYPE_XIVE2_ROUTER)
>> +#define XIVE2_ROUTER_GET_CLASS(obj) \
>> + OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
>> +
>> +typedef struct Xive2RouterClass {
>> + SysBusDeviceClass parent;
>> +
>> + /* XIVE table accessors */
>> + int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas);
>> + int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end);
>> + int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number);
>> + int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp);
>> + int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number);
>> + uint8_t (*get_block_id)(Xive2Router *xrtr);
>> +} Xive2RouterClass;
>> +
>> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas);
>> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end);
>> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number);
>> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp);
>> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number);
>> +
>> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
>> +
>> +/*
>> + * XIVE2 END ESBs (POWER10)
>> + */
>> +
>> +#define TYPE_XIVE2_END_SOURCE TYPE_XIVE_END_SOURCE "2"
>> +#define XIVE2_END_SOURCE(obj) \
>> + OBJECT_CHECK(Xive2EndSource, (obj), TYPE_XIVE2_END_SOURCE)
>> +
>> +typedef struct Xive2EndSource {
>> + DeviceState parent;
>> +
>> + uint32_t nr_ends;
>> +
>> + /* ESB memory region */
>> + uint32_t esb_shift;
>> + MemoryRegion esb_mmio;
>> +
>> + Xive2Router *xrtr;
>> +} Xive2EndSource;
>> +
>> +
>> +#endif /* PPC_XIVE2_H */
>> diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
>> new file mode 100644
>> index 000000000000..f4827f4c6d54
>> --- /dev/null
>> +++ b/include/hw/ppc/xive2_regs.h
>> @@ -0,0 +1,198 @@
>> +/*
>> + * QEMU PowerPC XIVE2 internal structure definitions (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation.
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + */
>> +
>> +#ifndef PPC_XIVE2_REGS_H
>> +#define PPC_XIVE2_REGS_H
>> +
>> +/*
>> + * Thread Interrupt Management Area (TIMA)
>> + *
>> + * In Gen1 mode (P9 compat mode) word 2 is the same. However in Gen2
>> + * mode (P10), the CAM line is slightly different as the VP space was
>> + * increased.
>> + */
>> +#define TM2_QW0W2_VU PPC_BIT32(0)
>> +#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
>> +#define TM2_QW1W2_VO PPC_BIT32(0)
>> +#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
>> +#define TM2_QW2W2_VP PPC_BIT32(0)
>> +#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
>> +#define TM2_QW3W2_VT PPC_BIT32(0)
>> +#define TM2_QW3W2_LP PPC_BIT32(6)
>> +#define TM2_QW3W2_LE PPC_BIT32(7)
>> +
>> +/*
>> + * Event Assignment Structure (EAS)
>> + */
>> +
>> +typedef struct Xive2Eas {
>> + uint64_t w;
>> +#define EAS2_VALID PPC_BIT(0)
>> +#define EAS2_END_BLOCK PPC_BITMASK(4, 7) /* Destination EQ block# */
>> +#define EAS2_END_INDEX PPC_BITMASK(8, 31) /* Destination EQ index */
>> +#define EAS2_MASKED PPC_BIT(32) /* Masked */
>> +#define EAS2_END_DATA PPC_BITMASK(33, 63) /* written to the EQ */
>> +} Xive2Eas;
>> +
>> +#define xive2_eas_is_valid(eas) (be64_to_cpu((eas)->w) & EAS2_VALID)
>> +#define xive2_eas_is_masked(eas) (be64_to_cpu((eas)->w) & EAS2_MASKED)
>> +
>> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon);
>> +
>> +/*
>> + * Event Notifification Descriptor (END)
>> + */
>> +
>> +typedef struct Xive2End {
>> + uint32_t w0;
>> +#define END2_W0_VALID PPC_BIT32(0) /* "v" bit */
>> +#define END2_W0_ENQUEUE PPC_BIT32(5) /* "q" bit */
>> +#define END2_W0_UCOND_NOTIFY PPC_BIT32(6) /* "n" bit */
>> +#define END2_W0_SILENT_ESCALATE PPC_BIT32(7) /* "s" bit */
>> +#define END2_W0_BACKLOG PPC_BIT32(8) /* "b" bit */
>> +#define END2_W0_PRECL_ESC_CTL PPC_BIT32(9) /* "p" bit */
>> +#define END2_W0_UNCOND_ESCALATE PPC_BIT32(10) /* "u" bit */
>> +#define END2_W0_ESCALATE_CTL PPC_BIT32(11) /* "e" bit */
>> +#define END2_W0_ADAPTIVE_ESC PPC_BIT32(12) /* "a" bit */
>> +#define END2_W0_ESCALATE_END PPC_BIT32(13) /* "N" bit */
>> +#define END2_W0_FIRMWARE1 PPC_BIT32(16) /* Owned by FW */
>> +#define END2_W0_FIRMWARE2 PPC_BIT32(17) /* Owned by FW */
>> +#define END2_W0_AEC_SIZE PPC_BITMASK32(18, 19)
>> +#define END2_W0_AEG_SIZE PPC_BITMASK32(20, 23)
>> +#define END2_W0_EQ_VG_PREDICT PPC_BITMASK32(24, 31) /* Owned by HW */
>> + uint32_t w1;
>> +#define END2_W1_ESn PPC_BITMASK32(0, 1)
>> +#define END2_W1_ESn_P PPC_BIT32(0)
>> +#define END2_W1_ESn_Q PPC_BIT32(1)
>> +#define END2_W1_ESe PPC_BITMASK32(2, 3)
>> +#define END2_W1_ESe_P PPC_BIT32(2)
>> +#define END2_W1_ESe_Q PPC_BIT32(3)
>> +#define END2_W1_GEN_FLIPPED PPC_BIT32(8)
>> +#define END2_W1_GENERATION PPC_BIT32(9)
>> +#define END2_W1_PAGE_OFF PPC_BITMASK32(10, 31)
>> + uint32_t w2;
>> +#define END2_W2_RESERVED PPC_BITMASK32(4, 7)
>> +#define END2_W2_EQ_ADDR_HI PPC_BITMASK32(8, 31)
>> + uint32_t w3;
>> +#define END2_W3_EQ_ADDR_LO PPC_BITMASK32(0, 24)
>> +#define END2_W3_QSIZE PPC_BITMASK32(28, 31)
>> + uint32_t w4;
>> +#define END2_W4_END_BLOCK PPC_BITMASK32(4, 7)
>> +#define END2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31)
>> +#define END2_W4_ESB_BLOCK PPC_BITMASK32(0, 3)
>> +#define END2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31)
>> + uint32_t w5;
>> +#define END2_W5_ESC_END_DATA PPC_BITMASK32(1, 31)
>> + uint32_t w6;
>> +#define END2_W6_FORMAT_BIT PPC_BIT32(0)
>> +#define END2_W6_IGNORE PPC_BIT32(1)
>> +#define END2_W6_VP_BLOCK PPC_BITMASK32(4, 7)
>> +#define END2_W6_VP_OFFSET PPC_BITMASK32(8, 31)
>> +#define END2_W6_VP_OFFSET_GEN1 PPC_BITMASK32(13, 31)
>> + uint32_t w7;
>> +#define END2_W7_TOPO PPC_BITMASK32(0, 3) /* Owned by HW */
>> +#define END2_W7_F0_PRIORITY PPC_BITMASK32(8, 15)
>> +#define END2_W7_F1_LOG_SERVER_ID PPC_BITMASK32(4, 31)
>> +} Xive2End;
>> +
>> +#define xive2_end_is_valid(end) (be32_to_cpu((end)->w0) & END2_W0_VALID)
>> +#define xive2_end_is_enqueue(end) (be32_to_cpu((end)->w0) & END2_W0_ENQUEUE)
>> +#define xive2_end_is_notify(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_UCOND_NOTIFY)
>> +#define xive2_end_is_backlog(end) (be32_to_cpu((end)->w0) & END2_W0_BACKLOG)
>> +#define xive2_end_is_escalate(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_CTL)
>> +#define xive2_end_is_uncond_escalation(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_UNCOND_ESCALATE)
>> +#define xive2_end_is_silent_escalation(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_SILENT_ESCALATE)
>> +#define xive2_end_is_escalate_end(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_END)
>> +#define xive2_end_is_firmware1(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE1)
>> +#define xive2_end_is_firmware2(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE2)
>> +
>> +static inline uint64_t xive2_end_qaddr(Xive2End *end)
>> +{
>> + return ((uint64_t) be32_to_cpu(end->w2) & END2_W2_EQ_ADDR_HI) << 32 |
>> + (be32_to_cpu(end->w3) & END2_W3_EQ_ADDR_LO);
>> +}
>> +
>> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon);
>> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
>> + Monitor *mon);
>> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
>> + Monitor *mon);
>> +
>> +/*
>> + * Notification Virtual Processor (NVP)
>> + */
>> +typedef struct Xive2Nvp {
>> + uint32_t w0;
>> +#define NVP2_W0_VALID PPC_BIT32(0)
>> +#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
>> + uint32_t w1;
>> + uint32_t w2;
>> +#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
>> + uint32_t w3;
>> + uint32_t w4;
>> +#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
>> +#define NVP2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31) /* N:0 */
>> +#define NVP2_W4_ESC_END_BLOCK PPC_BITMASK32(4, 7) /* N:1 */
>> +#define NVP2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31) /* N:1 */
>> + uint32_t w5;
>> +#define NVP2_W5_PSIZE PPC_BITMASK32(0, 1)
>> +#define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7)
>> +#define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31)
>> + uint32_t w6;
>> + uint32_t w7;
>> +} Xive2Nvp;
>> +
>> +#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
>> +
>> +/*
>> + * The VP number space in a block is defined by the END2_W6_VP_OFFSET
>> + * field of the XIVE END. When running in Gen1 mode (P9 compat mode),
>> + * the VP space is reduced to (1 << 19) VPs per block
>> + */
>> +#define XIVE2_NVP_SHIFT 24
>> +#define XIVE2_NVP_COUNT (1 << XIVE2_NVP_SHIFT)
>> +
>> +static inline uint32_t xive2_nvp_cam_line(uint8_t nvp_blk, uint32_t nvp_idx)
>> +{
>> + return (nvp_blk << XIVE2_NVP_SHIFT) | nvp_idx;
>> +}
>> +
>> +static inline uint32_t xive2_nvp_idx(uint32_t cam_line)
>> +{
>> + return cam_line & ((1 << XIVE2_NVP_SHIFT) - 1);
>> +}
>> +
>> +static inline uint32_t xive2_nvp_blk(uint32_t cam_line)
>> +{
>> + return (cam_line >> XIVE2_NVP_SHIFT) & 0xf;
>> +}
>> +
>> +/*
>> + * Notification Virtual Group or Crowd (NVG/NVC)
>> + */
>> +typedef struct Xive2Nvgc {
>> + uint32_t w0;
>> +#define NVGC2_W0_VALID PPC_BIT32(0)
>> + uint32_t w1;
>> + uint32_t w2;
>> + uint32_t w3;
>> + uint32_t w4;
>> + uint32_t w5;
>> + uint32_t w6;
>> + uint32_t w7;
>> +} Xive2Nvgc;
>> +
>> +#endif /* PPC_XIVE2_REGS_H */
>> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
>> new file mode 100644
>> index 000000000000..b1c216b10006
>> --- /dev/null
>> +++ b/hw/intc/xive2.c
>> @@ -0,0 +1,672 @@
>> +/*
>> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation..
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + */
>> +
>> +#include "qemu/osdep.h"
>> +#include "qemu/log.h"
>> +#include "qemu/module.h"
>> +#include "qapi/error.h"
>> +#include "target/ppc/cpu.h"
>> +#include "sysemu/cpus.h"
>> +#include "sysemu/dma.h"
>> +#include "hw/qdev-properties.h"
>> +#include "monitor/monitor.h"
>> +#include "hw/ppc/xive.h"
>> +#include "hw/ppc/xive2.h"
>> +#include "hw/ppc/xive2_regs.h"
>> +
>> +static uint8_t priority_to_ipb(uint8_t priority)
>> +{
>> + return priority > XIVE_PRIORITY_MAX ?
>> + 0 : 1 << (XIVE_PRIORITY_MAX - priority);
>> +}
>
> This is identical to the XIVE1 version, couldn't you share it by
> putting it in a header?
yes. done in v2. I also exported xive_tctx_word2() which is duplicated
in patch 10.
Thanks,
C.
>
>> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon)
>> +{
>> + if (!xive2_eas_is_valid(eas)) {
>> + return;
>> + }
>> +
>> + monitor_printf(mon, " %08x %s end:%02x/%04x data:%08x\n",
>> + lisn, xive2_eas_is_masked(eas) ? "M" : " ",
>> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
>> +}
>> +
>> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
>> + Monitor *mon)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qentries = 1 << (qsize + 10);
>> + int i;
>> +
>> + /*
>> + * print out the [ (qindex - (width - 1)) .. (qindex + 1)] window
>> + */
>> + monitor_printf(mon, " [ ");
>> + qindex = (qindex - (width - 1)) & (qentries - 1);
>> + for (i = 0; i < width; i++) {
>> + uint64_t qaddr = qaddr_base + (qindex << 2);
>> + uint32_t qdata = -1;
>> +
>> + if (dma_memory_read(&address_space_memory, qaddr, &qdata,
>> + sizeof(qdata))) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to read EQ @0x%"
>> + HWADDR_PRIx "\n", qaddr);
>> + return;
>> + }
>> + monitor_printf(mon, "%s%08x ", i == width - 1 ? "^" : "",
>> + be32_to_cpu(qdata));
>> + qindex = (qindex + 1) & (qentries - 1);
>> + }
>> + monitor_printf(mon, "]");
>> +}
>> +
>> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qentries = 1 << (qsize + 10);
>> +
>> + uint32_t nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end->w6);
>> + uint32_t nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end->w6);
>> + uint8_t priority = xive_get_field32(END2_W7_F0_PRIORITY, end->w7);
>> + uint8_t pq;
>> +
>> + if (!xive2_end_is_valid(end)) {
>> + return;
>> + }
>> +
>> + pq = xive_get_field32(END2_W1_ESn, end->w1);
>> +
>> + monitor_printf(mon,
>> + " %08x %c%c %c%c%c%c%c%c%c%c%c%c prio:%d nvp:%02x/%04x",
>> + end_idx,
>> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
>> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
>> + xive2_end_is_valid(end) ? 'v' : '-',
>> + xive2_end_is_enqueue(end) ? 'q' : '-',
>> + xive2_end_is_notify(end) ? 'n' : '-',
>> + xive2_end_is_backlog(end) ? 'b' : '-',
>> + xive2_end_is_escalate(end) ? 'e' : '-',
>> + xive2_end_is_escalate_end(end) ? 'N' : '-',
>> + xive2_end_is_uncond_escalation(end) ? 'u' : '-',
>> + xive2_end_is_silent_escalation(end) ? 's' : '-',
>> + xive2_end_is_firmware1(end) ? 'f' : '-',
>> + xive2_end_is_firmware2(end) ? 'F' : '-',
>> + priority, nvp_blk, nvp_idx);
>> +
>> + if (qaddr_base) {
>> + monitor_printf(mon, " eq:@%08"PRIx64"% 6d/%5d ^%d",
>> + qaddr_base, qindex, qentries, qgen);
>> + xive2_end_queue_pic_print_info(end, 6, mon);
>> + }
>> + monitor_printf(mon, "\n");
>> +}
>> +
>> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
>> + Monitor *mon)
>> +{
>> + Xive2Eas *eas = (Xive2Eas *) &end->w4;
>> + uint8_t pq;
>> +
>> + if (!xive2_end_is_escalate(end)) {
>> + return;
>> + }
>> +
>> + pq = xive_get_field32(END2_W1_ESe, end->w1);
>> +
>> + monitor_printf(mon, " %08x %c%c %c%c end:%02x/%04x data:%08x\n",
>> + end_idx,
>> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
>> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
>> + xive2_eas_is_valid(eas) ? 'v' : ' ',
>> + xive2_eas_is_masked(eas) ? 'M' : ' ',
>> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
>> +}
>> +
>> +static void xive2_end_enqueue(Xive2End *end, uint32_t data)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
>> +
>> + uint64_t qaddr = qaddr_base + (qindex << 2);
>> + uint32_t qdata = cpu_to_be32((qgen << 31) | (data & 0x7fffffff));
>> + uint32_t qentries = 1 << (qsize + 10);
>> +
>> + if (dma_memory_write(&address_space_memory, qaddr, &qdata, sizeof(qdata))) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to write END data @0x%"
>> + HWADDR_PRIx "\n", qaddr);
>> + return;
>> + }
>> +
>> + qindex = (qindex + 1) & (qentries - 1);
>> + if (qindex == 0) {
>> + qgen ^= 1;
>> + end->w1 = xive_set_field32(END2_W1_GENERATION, end->w1, qgen);
>> +
>> + /* TODO(PowerNV): reset GF bit on a cache watch operation */
>> + end->w1 = xive_set_field32(END2_W1_GEN_FLIPPED, end->w1, qgen);
>> + }
>> + end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
>> +}
>> +/*
>> + * XIVE Router (aka. Virtualization Controller or IVRE)
>> + */
>> +
>> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
>> +}
>> +
>> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_end(xrtr, end_blk, end_idx, end);
>> +}
>> +
>> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->write_end(xrtr, end_blk, end_idx, end, word_number);
>> +}
>> +
>> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_nvp(xrtr, nvp_blk, nvp_idx, nvp);
>> +}
>> +
>> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number);
>> +}
>> +
>> +static int xive2_router_get_block_id(Xive2Router *xrtr)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_block_id(xrtr);
>> +}
>> +
>> +static void xive2_router_realize(DeviceState *dev, Error **errp)
>> +{
>> + Xive2Router *xrtr = XIVE2_ROUTER(dev);
>> +
>> + assert(xrtr->xfb);
>> +}
>> +
>> +/*
>> + * Notification using the END ESe/ESn bit (Event State Buffer for
>> + * escalation and notification). Profide futher coalescing in the
>> + * Router.
>> + */
>> +static bool xive2_router_end_es_notify(Xive2Router *xrtr, uint8_t end_blk,
>> + uint32_t end_idx, Xive2End *end,
>> + uint32_t end_esmask)
>> +{
>> + uint8_t pq = xive_get_field32(end_esmask, end->w1);
>> + bool notify = xive_esb_trigger(&pq);
>> +
>> + if (pq != xive_get_field32(end_esmask, end->w1)) {
>> + end->w1 = xive_set_field32(end_esmask, end->w1, pq);
>> + xive2_router_write_end(xrtr, end_blk, end_idx, end, 1);
>> + }
>> +
>> + /* ESe/n[Q]=1 : end of notification */
>> + return notify;
>> +}
>> +
>> +/*
>> + * An END trigger can come from an event trigger (IPI or HW) or from
>> + * another chip. We don't model the PowerBus but the END trigger
>> + * message has the same parameters than in the function below.
>> + */
>> +static void xive2_router_end_notify(Xive2Router *xrtr, uint8_t end_blk,
>> + uint32_t end_idx, uint32_t end_data)
>> +{
>> + Xive2End end;
>> + uint8_t priority;
>> + uint8_t format;
>> + bool found;
>> + Xive2Nvp nvp;
>> + uint8_t nvp_blk;
>> + uint32_t nvp_idx;
>> +
>> + /* END cache lookup */
>> + if (xive2_router_get_end(xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + if (xive2_end_is_enqueue(&end)) {
>> + xive2_end_enqueue(&end, end_data);
>> + /* Enqueuing event data modifies the EQ toggle and index */
>> + xive2_router_write_end(xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + /*
>> + * When the END is silent, we skip the notification part.
>> + */
>> + if (xive2_end_is_silent_escalation(&end)) {
>> + goto do_escalation;
>> + }
>> +
>> + /*
>> + * The W7 format depends on the F bit in W6. It defines the type
>> + * of the notification :
>> + *
>> + * F=0 : single or multiple NVP notification
>> + * F=1 : User level Event-Based Branch (EBB) notification, no
>> + * priority
>> + */
>> + format = xive_get_field32(END2_W6_FORMAT_BIT, end.w6);
>> + priority = xive_get_field32(END2_W7_F0_PRIORITY, end.w7);
>> +
>> + /* The END is masked */
>> + if (format == 0 && priority == 0xff) {
>> + return;
>> + }
>> +
>> + /*
>> + * Check the END ESn (Event State Buffer for notification) for
>> + * even futher coalescing in the Router
>> + */
>> + if (!xive2_end_is_notify(&end)) {
>> + /* ESn[Q]=1 : end of notification */
>> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
>> + &end, END2_W1_ESn)) {
>> + return;
>> + }
>> + }
>> +
>> + /*
>> + * Follows IVPE notification
>> + */
>> + nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end.w6);
>> + nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end.w6);
>> +
>> + /* NVP cache lookup */
>> + if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: no NVP %x/%x\n",
>> + nvp_blk, nvp_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_nvp_is_valid(&nvp)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is invalid\n",
>> + nvp_blk, nvp_idx);
>> + return;
>> + }
>> +
>> + found = xive_presenter_notify(xrtr->xfb, format, nvp_blk, nvp_idx,
>> + xive_get_field32(END2_W6_IGNORE, end.w7),
>> + priority,
>> + xive_get_field32(END2_W7_F1_LOG_SERVER_ID, end.w7));
>> +
>> + /* TODO: Auto EOI. */
>> +
>> + if (found) {
>> + return;
>> + }
>> +
>> + /*
>> + * If no matching NVP is dispatched on a HW thread :
>> + * - specific VP: update the NVP structure if backlog is activated
>> + * - logical server : forward request to IVPE (not supported)
>> + */
>> + if (xive2_end_is_backlog(&end)) {
>> + uint8_t ipb;
>> +
>> + if (format == 1) {
>> + qemu_log_mask(LOG_GUEST_ERROR,
>> + "XIVE: END %x/%x invalid config: F1 & backlog\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + /*
>> + * Record the IPB in the associated NVP structure for later
>> + * use. The presenter will resend the interrupt when the vCPU
>> + * is dispatched again on a HW thread.
>> + */
>> + ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2) |
>> + priority_to_ipb(priority);
>> + nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, ipb);
>> + xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
>> +
>> + /*
>> + * On HW, follows a "Broadcast Backlog" to IVPEs
>> + */
>> + }
>> +
>> +do_escalation:
>> + /*
>> + * If activated, escalate notification using the ESe PQ bits and
>> + * the EAS in w4-5
>> + */
>> + if (!xive2_end_is_escalate(&end)) {
>> + return;
>> + }
>> +
>> + /*
>> + * Check the END ESe (Event State Buffer for escalation) for even
>> + * futher coalescing in the Router
>> + */
>> + if (!xive2_end_is_uncond_escalation(&end)) {
>> + /* ESe[Q]=1 : end of escalation notification */
>> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
>> + &end, END2_W1_ESe)) {
>> + return;
>> + }
>> + }
>> +
>> + /*
>> + * The END trigger becomes an Escalation trigger
>> + */
>> + xive2_router_end_notify(xrtr,
>> + xive_get_field32(END2_W4_END_BLOCK, end.w4),
>> + xive_get_field32(END2_W4_ESC_END_INDEX, end.w4),
>> + xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
>> +}
>> +
>> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
>> +{
>> + Xive2Router *xrtr = XIVE2_ROUTER(xn);
>> + uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
>> + uint32_t eas_idx = XIVE_EAS_INDEX(lisn);
>> + Xive2Eas eas;
>> +
>> + /* EAS cache lookup */
>> + if (xive2_router_get_eas(xrtr, eas_blk, eas_idx, &eas)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Unknown LISN %x\n", lisn);
>> + return;
>> + }
>> +
>> + if (!xive2_eas_is_valid(&eas)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
>> + return;
>> + }
>> +
>> + if (xive2_eas_is_masked(&eas)) {
>> + /* Notification completed */
>> + return;
>> + }
>> +
>> + /*
>> + * The event trigger becomes an END trigger
>> + */
>> + xive2_router_end_notify(xrtr,
>> + xive_get_field64(EAS2_END_BLOCK, eas.w),
>> + xive_get_field64(EAS2_END_INDEX, eas.w),
>> + xive_get_field64(EAS2_END_DATA, eas.w));
>> +}
>> +
>> +static Property xive2_router_properties[] = {
>> + DEFINE_PROP_LINK("xive-fabric", Xive2Router, xfb,
>> + TYPE_XIVE_FABRIC, XiveFabric *),
>> + DEFINE_PROP_END_OF_LIST(),
>> +};
>> +
>> +static void xive2_router_class_init(ObjectClass *klass, void *data)
>> +{
>> + DeviceClass *dc = DEVICE_CLASS(klass);
>> + XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
>> +
>> + dc->desc = "XIVE2 Router Engine";
>> + device_class_set_props(dc, xive2_router_properties);
>> + /* Parent is SysBusDeviceClass. No need to call its realize hook */
>> + dc->realize = xive2_router_realize;
>> + xnc->notify = xive2_router_notify;
>> +}
>> +
>> +static const TypeInfo xive2_router_info = {
>> + .name = TYPE_XIVE2_ROUTER,
>> + .parent = TYPE_SYS_BUS_DEVICE,
>> + .abstract = true,
>> + .instance_size = sizeof(Xive2Router),
>> + .class_size = sizeof(Xive2RouterClass),
>> + .class_init = xive2_router_class_init,
>> + .interfaces = (InterfaceInfo[]) {
>> + { TYPE_XIVE_NOTIFIER },
>> + { TYPE_XIVE_PRESENTER },
>> + { }
>> + }
>> +};
>> +
>> +static inline bool addr_is_even(hwaddr addr, uint32_t shift)
>> +{
>> + return !((addr >> shift) & 1);
>> +}
>> +
>> +static uint64_t xive2_end_source_read(void *opaque, hwaddr addr, unsigned size)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
>> + uint32_t offset = addr & 0xFFF;
>> + uint8_t end_blk;
>> + uint32_t end_idx;
>> + Xive2End end;
>> + uint32_t end_esmask;
>> + uint8_t pq;
>> + uint64_t ret;
>> +
>> + /*
>> + * The block id should be deduced from the load address on the END
>> + * ESB MMIO but our model only supports a single block per XIVE chip.
>> + */
>> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
>> + end_idx = addr >> (xsrc->esb_shift + 1);
>> +
>> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return -1;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return -1;
>> + }
>> +
>> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
>> + END2_W1_ESe;
>> + pq = xive_get_field32(end_esmask, end.w1);
>> +
>> + switch (offset) {
>> + case XIVE_ESB_LOAD_EOI ... XIVE_ESB_LOAD_EOI + 0x7FF:
>> + ret = xive_esb_eoi(&pq);
>> +
>> + /* Forward the source event notification for routing ?? */
>> + break;
>> +
>> + case XIVE_ESB_GET ... XIVE_ESB_GET + 0x3FF:
>> + ret = pq;
>> + break;
>> +
>> + case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_11 ... XIVE_ESB_SET_PQ_11 + 0x0FF:
>> + ret = xive_esb_set(&pq, (offset >> 8) & 0x3);
>> + break;
>> + default:
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB load addr %d\n",
>> + offset);
>> + return -1;
>> + }
>> +
>> + if (pq != xive_get_field32(end_esmask, end.w1)) {
>> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
>> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +static void xive2_end_source_write(void *opaque, hwaddr addr,
>> + uint64_t value, unsigned size)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
>> + uint32_t offset = addr & 0xFFF;
>> + uint8_t end_blk;
>> + uint32_t end_idx;
>> + Xive2End end;
>> + uint32_t end_esmask;
>> + uint8_t pq;
>> + bool notify = false;
>> +
>> + /*
>> + * The block id should be deduced from the load address on the END
>> + * ESB MMIO but our model only supports a single block per XIVE chip.
>> + */
>> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
>> + end_idx = addr >> (xsrc->esb_shift + 1);
>> +
>> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
>> + END2_W1_ESe;
>> + pq = xive_get_field32(end_esmask, end.w1);
>> +
>> + switch (offset) {
>> + case 0 ... 0x3FF:
>> + notify = xive_esb_trigger(&pq);
>> + break;
>> +
>> + case XIVE_ESB_STORE_EOI ... XIVE_ESB_STORE_EOI + 0x3FF:
>> + /* TODO: can we check StoreEOI availability from the router ? */
>> + notify = xive_esb_eoi(&pq);
>> + break;
>> +
>> + default:
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
>> + offset);
>> + return;
>> + }
>> +
>> + if (pq != xive_get_field32(end_esmask, end.w1)) {
>> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
>> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + /* TODO: Forward the source event notification for routing */
>> + if (notify) {
>> + ;
>> + }
>> +}
>> +
>> +static const MemoryRegionOps xive2_end_source_ops = {
>> + .read = xive2_end_source_read,
>> + .write = xive2_end_source_write,
>> + .endianness = DEVICE_BIG_ENDIAN,
>> + .valid = {
>> + .min_access_size = 8,
>> + .max_access_size = 8,
>> + },
>> + .impl = {
>> + .min_access_size = 8,
>> + .max_access_size = 8,
>> + },
>> +};
>> +
>> +static void xive2_end_source_realize(DeviceState *dev, Error **errp)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(dev);
>> +
>> + assert(xsrc->xrtr);
>> +
>> + if (!xsrc->nr_ends) {
>> + error_setg(errp, "Number of interrupt needs to be greater than 0");
>> + return;
>> + }
>> +
>> + if (xsrc->esb_shift != XIVE_ESB_4K &&
>> + xsrc->esb_shift != XIVE_ESB_64K) {
>> + error_setg(errp, "Invalid ESB shift setting");
>> + return;
>> + }
>> +
>> + /*
>> + * Each END is assigned an even/odd pair of MMIO pages, the even page
>> + * manages the ESn field while the odd page manages the ESe field.
>> + */
>> + memory_region_init_io(&xsrc->esb_mmio, OBJECT(xsrc),
>> + &xive2_end_source_ops, xsrc, "xive.end",
>> + (1ull << (xsrc->esb_shift + 1)) * xsrc->nr_ends);
>> +}
>> +
>> +static Property xive2_end_source_properties[] = {
>> + DEFINE_PROP_UINT32("nr-ends", Xive2EndSource, nr_ends, 0),
>> + DEFINE_PROP_UINT32("shift", Xive2EndSource, esb_shift, XIVE_ESB_64K),
>> + DEFINE_PROP_LINK("xive", Xive2EndSource, xrtr, TYPE_XIVE2_ROUTER,
>> + Xive2Router *),
>> + DEFINE_PROP_END_OF_LIST(),
>> +};
>> +
>> +static void xive2_end_source_class_init(ObjectClass *klass, void *data)
>> +{
>> + DeviceClass *dc = DEVICE_CLASS(klass);
>> +
>> + dc->desc = "XIVE END Source";
>> + device_class_set_props(dc, xive2_end_source_properties);
>> + dc->realize = xive2_end_source_realize;
>> +}
>> +
>> +static const TypeInfo xive2_end_source_info = {
>> + .name = TYPE_XIVE2_END_SOURCE,
>> + .parent = TYPE_DEVICE,
>> + .instance_size = sizeof(Xive2EndSource),
>> + .class_init = xive2_end_source_class_init,
>> +};
>> +
>> +static void xive2_register_types(void)
>> +{
>> + type_register_static(&xive2_router_info);
>> + type_register_static(&xive2_end_source_info);
>> +}
>> +
>> +type_init(xive2_register_types)
>> diff --git a/hw/intc/meson.build b/hw/intc/meson.build
>> index 6e52a166e38a..42af518f1c48 100644
>> --- a/hw/intc/meson.build
>> +++ b/hw/intc/meson.build
>> @@ -39,7 +39,7 @@ specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_intc.c'))
>> specific_ss.add(when: 'CONFIG_OMPIC', if_true: files('ompic.c'))
>> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_OPENPIC'],
>> if_true: files('openpic_kvm.c'))
>> -specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c'))
>> +specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c', 'pnv_xive2.c'))
>> specific_ss.add(when: 'CONFIG_PPC_UIC', if_true: files('ppc-uic.c'))
>> specific_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_ic.c', 'bcm2836_control.c'))
>> specific_ss.add(when: 'CONFIG_RX_ICU', if_true: files('rx_icu.c'))
>> @@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
>> specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
>> specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
>> specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
>> -specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
>> +specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c', 'xive2.c'))
>> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
>> if_true: files('xics_kvm.c'))
>> specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('xics_spapr.c', 'spapr_xive.c'))
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework
2021-08-09 13:45 ` [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework Cédric Le Goater
2021-08-10 6:06 ` David Gibson
@ 2021-08-23 15:15 ` Greg Kurz
2021-08-30 7:17 ` Cédric Le Goater
1 sibling, 1 reply; 49+ messages in thread
From: Greg Kurz @ 2021-08-23 15:15 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, qemu-devel, David Gibson
On Mon, 9 Aug 2021 15:45:30 +0200
Cédric Le Goater <clg@kaod.org> wrote:
> The XIVE2 interrupt controller of the POWER10 processor as the same
> logic as on POWER9 but its SW interface has been largely reworked. The
> interrupt controller has a new register interface, different BARs,
> extra VSDs. These will be described when we add the device model for
> the baremetal machine.
>
> The XIVE internal structures for the EAS, END, NVT have different
> layouts which is a problem for the current core XIVE framework. To
> avoid adding too much complexity in the XIVE models, a new XIVE2 core
> framework is introduced. It duplicates the models which are closely
> linked to the XIVE internal structures : Xive2Router and
> Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX
> models, as they are more generic.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
I had a quick look only. Please find a few remarks below.
> include/hw/ppc/xive2.h | 84 +++++
> include/hw/ppc/xive2_regs.h | 198 +++++++++++
> hw/intc/xive2.c | 672 ++++++++++++++++++++++++++++++++++++
> hw/intc/meson.build | 4 +-
> 4 files changed, 956 insertions(+), 2 deletions(-)
> create mode 100644 include/hw/ppc/xive2.h
> create mode 100644 include/hw/ppc/xive2_regs.h
> create mode 100644 hw/intc/xive2.c
>
> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
> new file mode 100644
> index 000000000000..a14f430a09f7
> --- /dev/null
> +++ b/include/hw/ppc/xive2.h
> @@ -0,0 +1,84 @@
> +/*
> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation.
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + *
> + */
> +
> +#ifndef PPC_XIVE2_H
> +#define PPC_XIVE2_H
> +
> +#include "hw/ppc/xive2_regs.h"
> +
> +/*
> + * XIVE2 Router (POWER10)
> + */
> +typedef struct Xive2Router {
> + SysBusDevice parent;
> +
> + XiveFabric *xfb;
> +} Xive2Router;
> +
> +#define TYPE_XIVE2_ROUTER TYPE_XIVE_ROUTER "2"
Hmm... this produces "xive-router2". It would seem better to define
it as "xive2-router" IMHO.
> +#define XIVE2_ROUTER(obj) \
> + OBJECT_CHECK(Xive2Router, (obj), TYPE_XIVE2_ROUTER)
> +#define XIVE2_ROUTER_CLASS(klass) \
> + OBJECT_CLASS_CHECK(Xive2RouterClass, (klass), TYPE_XIVE2_ROUTER)
> +#define XIVE2_ROUTER_GET_CLASS(obj) \
> + OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
> +
It seems this could be abbreviated to :
OBJECT_DECLARE_TYPE(Xive2Router, Xive2RouterClass, XIVE2_ROUTER);
> +typedef struct Xive2RouterClass {
> + SysBusDeviceClass parent;
> +
> + /* XIVE table accessors */
> + int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas);
> + int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end);
> + int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number);
> + int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp);
> + int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number);
> + uint8_t (*get_block_id)(Xive2Router *xrtr);
> +} Xive2RouterClass;
> +
> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas);
> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end);
> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number);
> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp);
> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number);
> +
> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
> +
> +/*
> + * XIVE2 END ESBs (POWER10)
> + */
> +
> +#define TYPE_XIVE2_END_SOURCE TYPE_XIVE_END_SOURCE "2"
Samre remark as with Xive2Router.
> +#define XIVE2_END_SOURCE(obj) \
> + OBJECT_CHECK(Xive2EndSource, (obj), TYPE_XIVE2_END_SOURCE)
> +
This could be:
OBJECT_DECLARE_SIMPLE_TYPE(Xive2EndSource, XIVE2_END_SOURCE);
> +typedef struct Xive2EndSource {
> + DeviceState parent;
> +
> + uint32_t nr_ends;
> +
> + /* ESB memory region */
> + uint32_t esb_shift;
> + MemoryRegion esb_mmio;
> +
> + Xive2Router *xrtr;
> +} Xive2EndSource;
> +
> +
> +#endif /* PPC_XIVE2_H */
> diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
> new file mode 100644
> index 000000000000..f4827f4c6d54
> --- /dev/null
> +++ b/include/hw/ppc/xive2_regs.h
> @@ -0,0 +1,198 @@
> +/*
> + * QEMU PowerPC XIVE2 internal structure definitions (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation.
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + */
> +
> +#ifndef PPC_XIVE2_REGS_H
> +#define PPC_XIVE2_REGS_H
> +
> +/*
> + * Thread Interrupt Management Area (TIMA)
> + *
> + * In Gen1 mode (P9 compat mode) word 2 is the same. However in Gen2
> + * mode (P10), the CAM line is slightly different as the VP space was
> + * increased.
> + */
> +#define TM2_QW0W2_VU PPC_BIT32(0)
> +#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
> +#define TM2_QW1W2_VO PPC_BIT32(0)
> +#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
> +#define TM2_QW2W2_VP PPC_BIT32(0)
> +#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
> +#define TM2_QW3W2_VT PPC_BIT32(0)
> +#define TM2_QW3W2_LP PPC_BIT32(6)
> +#define TM2_QW3W2_LE PPC_BIT32(7)
> +
> +/*
> + * Event Assignment Structure (EAS)
> + */
> +
> +typedef struct Xive2Eas {
> + uint64_t w;
> +#define EAS2_VALID PPC_BIT(0)
> +#define EAS2_END_BLOCK PPC_BITMASK(4, 7) /* Destination EQ block# */
> +#define EAS2_END_INDEX PPC_BITMASK(8, 31) /* Destination EQ index */
> +#define EAS2_MASKED PPC_BIT(32) /* Masked */
> +#define EAS2_END_DATA PPC_BITMASK(33, 63) /* written to the EQ */
> +} Xive2Eas;
> +
> +#define xive2_eas_is_valid(eas) (be64_to_cpu((eas)->w) & EAS2_VALID)
> +#define xive2_eas_is_masked(eas) (be64_to_cpu((eas)->w) & EAS2_MASKED)
> +
> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon);
> +
> +/*
> + * Event Notifification Descriptor (END)
> + */
> +
> +typedef struct Xive2End {
> + uint32_t w0;
> +#define END2_W0_VALID PPC_BIT32(0) /* "v" bit */
> +#define END2_W0_ENQUEUE PPC_BIT32(5) /* "q" bit */
> +#define END2_W0_UCOND_NOTIFY PPC_BIT32(6) /* "n" bit */
> +#define END2_W0_SILENT_ESCALATE PPC_BIT32(7) /* "s" bit */
> +#define END2_W0_BACKLOG PPC_BIT32(8) /* "b" bit */
> +#define END2_W0_PRECL_ESC_CTL PPC_BIT32(9) /* "p" bit */
> +#define END2_W0_UNCOND_ESCALATE PPC_BIT32(10) /* "u" bit */
> +#define END2_W0_ESCALATE_CTL PPC_BIT32(11) /* "e" bit */
> +#define END2_W0_ADAPTIVE_ESC PPC_BIT32(12) /* "a" bit */
> +#define END2_W0_ESCALATE_END PPC_BIT32(13) /* "N" bit */
> +#define END2_W0_FIRMWARE1 PPC_BIT32(16) /* Owned by FW */
> +#define END2_W0_FIRMWARE2 PPC_BIT32(17) /* Owned by FW */
> +#define END2_W0_AEC_SIZE PPC_BITMASK32(18, 19)
> +#define END2_W0_AEG_SIZE PPC_BITMASK32(20, 23)
> +#define END2_W0_EQ_VG_PREDICT PPC_BITMASK32(24, 31) /* Owned by HW */
> + uint32_t w1;
> +#define END2_W1_ESn PPC_BITMASK32(0, 1)
> +#define END2_W1_ESn_P PPC_BIT32(0)
> +#define END2_W1_ESn_Q PPC_BIT32(1)
> +#define END2_W1_ESe PPC_BITMASK32(2, 3)
> +#define END2_W1_ESe_P PPC_BIT32(2)
> +#define END2_W1_ESe_Q PPC_BIT32(3)
> +#define END2_W1_GEN_FLIPPED PPC_BIT32(8)
> +#define END2_W1_GENERATION PPC_BIT32(9)
> +#define END2_W1_PAGE_OFF PPC_BITMASK32(10, 31)
> + uint32_t w2;
> +#define END2_W2_RESERVED PPC_BITMASK32(4, 7)
> +#define END2_W2_EQ_ADDR_HI PPC_BITMASK32(8, 31)
> + uint32_t w3;
> +#define END2_W3_EQ_ADDR_LO PPC_BITMASK32(0, 24)
> +#define END2_W3_QSIZE PPC_BITMASK32(28, 31)
> + uint32_t w4;
> +#define END2_W4_END_BLOCK PPC_BITMASK32(4, 7)
> +#define END2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31)
> +#define END2_W4_ESB_BLOCK PPC_BITMASK32(0, 3)
> +#define END2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31)
> + uint32_t w5;
> +#define END2_W5_ESC_END_DATA PPC_BITMASK32(1, 31)
> + uint32_t w6;
> +#define END2_W6_FORMAT_BIT PPC_BIT32(0)
> +#define END2_W6_IGNORE PPC_BIT32(1)
> +#define END2_W6_VP_BLOCK PPC_BITMASK32(4, 7)
> +#define END2_W6_VP_OFFSET PPC_BITMASK32(8, 31)
> +#define END2_W6_VP_OFFSET_GEN1 PPC_BITMASK32(13, 31)
> + uint32_t w7;
> +#define END2_W7_TOPO PPC_BITMASK32(0, 3) /* Owned by HW */
> +#define END2_W7_F0_PRIORITY PPC_BITMASK32(8, 15)
> +#define END2_W7_F1_LOG_SERVER_ID PPC_BITMASK32(4, 31)
> +} Xive2End;
> +
> +#define xive2_end_is_valid(end) (be32_to_cpu((end)->w0) & END2_W0_VALID)
> +#define xive2_end_is_enqueue(end) (be32_to_cpu((end)->w0) & END2_W0_ENQUEUE)
> +#define xive2_end_is_notify(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_UCOND_NOTIFY)
> +#define xive2_end_is_backlog(end) (be32_to_cpu((end)->w0) & END2_W0_BACKLOG)
> +#define xive2_end_is_escalate(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_CTL)
> +#define xive2_end_is_uncond_escalation(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_UNCOND_ESCALATE)
> +#define xive2_end_is_silent_escalation(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_SILENT_ESCALATE)
> +#define xive2_end_is_escalate_end(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_END)
> +#define xive2_end_is_firmware1(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE1)
> +#define xive2_end_is_firmware2(end) \
> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE2)
> +
> +static inline uint64_t xive2_end_qaddr(Xive2End *end)
> +{
> + return ((uint64_t) be32_to_cpu(end->w2) & END2_W2_EQ_ADDR_HI) << 32 |
> + (be32_to_cpu(end->w3) & END2_W3_EQ_ADDR_LO);
> +}
> +
> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon);
> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
> + Monitor *mon);
> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
> + Monitor *mon);
> +
> +/*
> + * Notification Virtual Processor (NVP)
> + */
> +typedef struct Xive2Nvp {
> + uint32_t w0;
> +#define NVP2_W0_VALID PPC_BIT32(0)
> +#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
> + uint32_t w1;
> + uint32_t w2;
> +#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
> + uint32_t w3;
> + uint32_t w4;
> +#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
> +#define NVP2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31) /* N:0 */
> +#define NVP2_W4_ESC_END_BLOCK PPC_BITMASK32(4, 7) /* N:1 */
> +#define NVP2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31) /* N:1 */
> + uint32_t w5;
> +#define NVP2_W5_PSIZE PPC_BITMASK32(0, 1)
> +#define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7)
> +#define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31)
> + uint32_t w6;
> + uint32_t w7;
> +} Xive2Nvp;
> +
> +#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
> +
> +/*
> + * The VP number space in a block is defined by the END2_W6_VP_OFFSET
> + * field of the XIVE END. When running in Gen1 mode (P9 compat mode),
> + * the VP space is reduced to (1 << 19) VPs per block
> + */
> +#define XIVE2_NVP_SHIFT 24
> +#define XIVE2_NVP_COUNT (1 << XIVE2_NVP_SHIFT)
> +
> +static inline uint32_t xive2_nvp_cam_line(uint8_t nvp_blk, uint32_t nvp_idx)
> +{
> + return (nvp_blk << XIVE2_NVP_SHIFT) | nvp_idx;
> +}
> +
> +static inline uint32_t xive2_nvp_idx(uint32_t cam_line)
> +{
> + return cam_line & ((1 << XIVE2_NVP_SHIFT) - 1);
> +}
> +
> +static inline uint32_t xive2_nvp_blk(uint32_t cam_line)
> +{
> + return (cam_line >> XIVE2_NVP_SHIFT) & 0xf;
> +}
> +
> +/*
> + * Notification Virtual Group or Crowd (NVG/NVC)
> + */
> +typedef struct Xive2Nvgc {
> + uint32_t w0;
> +#define NVGC2_W0_VALID PPC_BIT32(0)
> + uint32_t w1;
> + uint32_t w2;
> + uint32_t w3;
> + uint32_t w4;
> + uint32_t w5;
> + uint32_t w6;
> + uint32_t w7;
> +} Xive2Nvgc;
> +
> +#endif /* PPC_XIVE2_REGS_H */
> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
> new file mode 100644
> index 000000000000..b1c216b10006
> --- /dev/null
> +++ b/hw/intc/xive2.c
> @@ -0,0 +1,672 @@
> +/*
> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
> + *
> + * Copyright (c) 2019-2021, IBM Corporation..
> + *
> + * This code is licensed under the GPL version 2 or later. See the
> + * COPYING file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qemu/log.h"
> +#include "qemu/module.h"
> +#include "qapi/error.h"
> +#include "target/ppc/cpu.h"
> +#include "sysemu/cpus.h"
> +#include "sysemu/dma.h"
> +#include "hw/qdev-properties.h"
> +#include "monitor/monitor.h"
> +#include "hw/ppc/xive.h"
> +#include "hw/ppc/xive2.h"
> +#include "hw/ppc/xive2_regs.h"
> +
> +static uint8_t priority_to_ipb(uint8_t priority)
> +{
> + return priority > XIVE_PRIORITY_MAX ?
> + 0 : 1 << (XIVE_PRIORITY_MAX - priority);
> +}
> +
> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon)
> +{
> + if (!xive2_eas_is_valid(eas)) {
> + return;
> + }
> +
> + monitor_printf(mon, " %08x %s end:%02x/%04x data:%08x\n",
> + lisn, xive2_eas_is_masked(eas) ? "M" : " ",
> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
> +}
> +
> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
> + Monitor *mon)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qentries = 1 << (qsize + 10);
> + int i;
> +
> + /*
> + * print out the [ (qindex - (width - 1)) .. (qindex + 1)] window
> + */
> + monitor_printf(mon, " [ ");
> + qindex = (qindex - (width - 1)) & (qentries - 1);
> + for (i = 0; i < width; i++) {
> + uint64_t qaddr = qaddr_base + (qindex << 2);
> + uint32_t qdata = -1;
> +
> + if (dma_memory_read(&address_space_memory, qaddr, &qdata,
> + sizeof(qdata))) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to read EQ @0x%"
> + HWADDR_PRIx "\n", qaddr);
> + return;
> + }
> + monitor_printf(mon, "%s%08x ", i == width - 1 ? "^" : "",
> + be32_to_cpu(qdata));
> + qindex = (qindex + 1) & (qentries - 1);
> + }
> + monitor_printf(mon, "]");
> +}
> +
> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qentries = 1 << (qsize + 10);
> +
> + uint32_t nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end->w6);
> + uint32_t nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end->w6);
> + uint8_t priority = xive_get_field32(END2_W7_F0_PRIORITY, end->w7);
> + uint8_t pq;
> +
> + if (!xive2_end_is_valid(end)) {
> + return;
> + }
> +
> + pq = xive_get_field32(END2_W1_ESn, end->w1);
> +
> + monitor_printf(mon,
> + " %08x %c%c %c%c%c%c%c%c%c%c%c%c prio:%d nvp:%02x/%04x",
> + end_idx,
> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
> + xive2_end_is_valid(end) ? 'v' : '-',
> + xive2_end_is_enqueue(end) ? 'q' : '-',
> + xive2_end_is_notify(end) ? 'n' : '-',
> + xive2_end_is_backlog(end) ? 'b' : '-',
> + xive2_end_is_escalate(end) ? 'e' : '-',
> + xive2_end_is_escalate_end(end) ? 'N' : '-',
> + xive2_end_is_uncond_escalation(end) ? 'u' : '-',
> + xive2_end_is_silent_escalation(end) ? 's' : '-',
> + xive2_end_is_firmware1(end) ? 'f' : '-',
> + xive2_end_is_firmware2(end) ? 'F' : '-',
> + priority, nvp_blk, nvp_idx);
> +
> + if (qaddr_base) {
> + monitor_printf(mon, " eq:@%08"PRIx64"% 6d/%5d ^%d",
> + qaddr_base, qindex, qentries, qgen);
> + xive2_end_queue_pic_print_info(end, 6, mon);
> + }
> + monitor_printf(mon, "\n");
> +}
> +
> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
> + Monitor *mon)
> +{
> + Xive2Eas *eas = (Xive2Eas *) &end->w4;
> + uint8_t pq;
> +
> + if (!xive2_end_is_escalate(end)) {
> + return;
> + }
> +
> + pq = xive_get_field32(END2_W1_ESe, end->w1);
> +
> + monitor_printf(mon, " %08x %c%c %c%c end:%02x/%04x data:%08x\n",
> + end_idx,
> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
> + xive2_eas_is_valid(eas) ? 'v' : ' ',
> + xive2_eas_is_masked(eas) ? 'M' : ' ',
> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
> +}
> +
> +static void xive2_end_enqueue(Xive2End *end, uint32_t data)
> +{
> + uint64_t qaddr_base = xive2_end_qaddr(end);
> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
> +
> + uint64_t qaddr = qaddr_base + (qindex << 2);
> + uint32_t qdata = cpu_to_be32((qgen << 31) | (data & 0x7fffffff));
> + uint32_t qentries = 1 << (qsize + 10);
> +
> + if (dma_memory_write(&address_space_memory, qaddr, &qdata, sizeof(qdata))) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to write END data @0x%"
> + HWADDR_PRIx "\n", qaddr);
> + return;
> + }
> +
> + qindex = (qindex + 1) & (qentries - 1);
> + if (qindex == 0) {
> + qgen ^= 1;
> + end->w1 = xive_set_field32(END2_W1_GENERATION, end->w1, qgen);
> +
> + /* TODO(PowerNV): reset GF bit on a cache watch operation */
> + end->w1 = xive_set_field32(END2_W1_GEN_FLIPPED, end->w1, qgen);
> + }
> + end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
> +}
> +/*
> + * XIVE Router (aka. Virtualization Controller or IVRE)
> + */
> +
> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
> + Xive2Eas *eas)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
> +}
> +
> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_end(xrtr, end_blk, end_idx, end);
> +}
> +
> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
> + Xive2End *end, uint8_t word_number)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->write_end(xrtr, end_blk, end_idx, end, word_number);
> +}
> +
> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_nvp(xrtr, nvp_blk, nvp_idx, nvp);
> +}
> +
> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
> + Xive2Nvp *nvp, uint8_t word_number)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number);
> +}
> +
> +static int xive2_router_get_block_id(Xive2Router *xrtr)
> +{
> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
> +
> + return xrc->get_block_id(xrtr);
> +}
> +
> +static void xive2_router_realize(DeviceState *dev, Error **errp)
> +{
> + Xive2Router *xrtr = XIVE2_ROUTER(dev);
> +
> + assert(xrtr->xfb);
> +}
> +
> +/*
> + * Notification using the END ESe/ESn bit (Event State Buffer for
> + * escalation and notification). Profide futher coalescing in the
> + * Router.
> + */
> +static bool xive2_router_end_es_notify(Xive2Router *xrtr, uint8_t end_blk,
> + uint32_t end_idx, Xive2End *end,
> + uint32_t end_esmask)
> +{
> + uint8_t pq = xive_get_field32(end_esmask, end->w1);
> + bool notify = xive_esb_trigger(&pq);
> +
> + if (pq != xive_get_field32(end_esmask, end->w1)) {
> + end->w1 = xive_set_field32(end_esmask, end->w1, pq);
> + xive2_router_write_end(xrtr, end_blk, end_idx, end, 1);
> + }
> +
> + /* ESe/n[Q]=1 : end of notification */
> + return notify;
> +}
> +
> +/*
> + * An END trigger can come from an event trigger (IPI or HW) or from
> + * another chip. We don't model the PowerBus but the END trigger
> + * message has the same parameters than in the function below.
> + */
> +static void xive2_router_end_notify(Xive2Router *xrtr, uint8_t end_blk,
> + uint32_t end_idx, uint32_t end_data)
> +{
> + Xive2End end;
> + uint8_t priority;
> + uint8_t format;
> + bool found;
> + Xive2Nvp nvp;
> + uint8_t nvp_blk;
> + uint32_t nvp_idx;
> +
> + /* END cache lookup */
> + if (xive2_router_get_end(xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + if (xive2_end_is_enqueue(&end)) {
> + xive2_end_enqueue(&end, end_data);
> + /* Enqueuing event data modifies the EQ toggle and index */
> + xive2_router_write_end(xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + /*
> + * When the END is silent, we skip the notification part.
> + */
> + if (xive2_end_is_silent_escalation(&end)) {
> + goto do_escalation;
> + }
> +
> + /*
> + * The W7 format depends on the F bit in W6. It defines the type
> + * of the notification :
> + *
> + * F=0 : single or multiple NVP notification
> + * F=1 : User level Event-Based Branch (EBB) notification, no
> + * priority
> + */
> + format = xive_get_field32(END2_W6_FORMAT_BIT, end.w6);
> + priority = xive_get_field32(END2_W7_F0_PRIORITY, end.w7);
> +
> + /* The END is masked */
> + if (format == 0 && priority == 0xff) {
> + return;
> + }
> +
> + /*
> + * Check the END ESn (Event State Buffer for notification) for
> + * even futher coalescing in the Router
> + */
> + if (!xive2_end_is_notify(&end)) {
> + /* ESn[Q]=1 : end of notification */
> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
> + &end, END2_W1_ESn)) {
> + return;
> + }
> + }
> +
> + /*
> + * Follows IVPE notification
> + */
> + nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end.w6);
> + nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end.w6);
> +
> + /* NVP cache lookup */
> + if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: no NVP %x/%x\n",
> + nvp_blk, nvp_idx);
> + return;
> + }
> +
> + if (!xive2_nvp_is_valid(&nvp)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is invalid\n",
> + nvp_blk, nvp_idx);
> + return;
> + }
> +
> + found = xive_presenter_notify(xrtr->xfb, format, nvp_blk, nvp_idx,
> + xive_get_field32(END2_W6_IGNORE, end.w7),
> + priority,
> + xive_get_field32(END2_W7_F1_LOG_SERVER_ID, end.w7));
> +
> + /* TODO: Auto EOI. */
> +
> + if (found) {
> + return;
> + }
> +
> + /*
> + * If no matching NVP is dispatched on a HW thread :
> + * - specific VP: update the NVP structure if backlog is activated
> + * - logical server : forward request to IVPE (not supported)
> + */
> + if (xive2_end_is_backlog(&end)) {
> + uint8_t ipb;
> +
> + if (format == 1) {
> + qemu_log_mask(LOG_GUEST_ERROR,
> + "XIVE: END %x/%x invalid config: F1 & backlog\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + /*
> + * Record the IPB in the associated NVP structure for later
> + * use. The presenter will resend the interrupt when the vCPU
> + * is dispatched again on a HW thread.
> + */
> + ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2) |
> + priority_to_ipb(priority);
> + nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, ipb);
> + xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
> +
> + /*
> + * On HW, follows a "Broadcast Backlog" to IVPEs
> + */
> + }
> +
> +do_escalation:
> + /*
> + * If activated, escalate notification using the ESe PQ bits and
> + * the EAS in w4-5
> + */
> + if (!xive2_end_is_escalate(&end)) {
> + return;
> + }
> +
> + /*
> + * Check the END ESe (Event State Buffer for escalation) for even
> + * futher coalescing in the Router
> + */
> + if (!xive2_end_is_uncond_escalation(&end)) {
> + /* ESe[Q]=1 : end of escalation notification */
> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
> + &end, END2_W1_ESe)) {
> + return;
> + }
> + }
> +
> + /*
> + * The END trigger becomes an Escalation trigger
> + */
> + xive2_router_end_notify(xrtr,
> + xive_get_field32(END2_W4_END_BLOCK, end.w4),
> + xive_get_field32(END2_W4_ESC_END_INDEX, end.w4),
> + xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
> +}
> +
> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
> +{
> + Xive2Router *xrtr = XIVE2_ROUTER(xn);
> + uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
> + uint32_t eas_idx = XIVE_EAS_INDEX(lisn);
> + Xive2Eas eas;
> +
> + /* EAS cache lookup */
> + if (xive2_router_get_eas(xrtr, eas_blk, eas_idx, &eas)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Unknown LISN %x\n", lisn);
> + return;
> + }
> +
> + if (!xive2_eas_is_valid(&eas)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
> + return;
> + }
> +
> + if (xive2_eas_is_masked(&eas)) {
> + /* Notification completed */
> + return;
> + }
> +
> + /*
> + * The event trigger becomes an END trigger
> + */
> + xive2_router_end_notify(xrtr,
> + xive_get_field64(EAS2_END_BLOCK, eas.w),
> + xive_get_field64(EAS2_END_INDEX, eas.w),
> + xive_get_field64(EAS2_END_DATA, eas.w));
> +}
> +
> +static Property xive2_router_properties[] = {
> + DEFINE_PROP_LINK("xive-fabric", Xive2Router, xfb,
> + TYPE_XIVE_FABRIC, XiveFabric *),
> + DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void xive2_router_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> + XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
> +
> + dc->desc = "XIVE2 Router Engine";
> + device_class_set_props(dc, xive2_router_properties);
> + /* Parent is SysBusDeviceClass. No need to call its realize hook */
> + dc->realize = xive2_router_realize;
> + xnc->notify = xive2_router_notify;
> +}
> +
> +static const TypeInfo xive2_router_info = {
> + .name = TYPE_XIVE2_ROUTER,
> + .parent = TYPE_SYS_BUS_DEVICE,
> + .abstract = true,
> + .instance_size = sizeof(Xive2Router),
> + .class_size = sizeof(Xive2RouterClass),
> + .class_init = xive2_router_class_init,
> + .interfaces = (InterfaceInfo[]) {
> + { TYPE_XIVE_NOTIFIER },
> + { TYPE_XIVE_PRESENTER },
> + { }
> + }
> +};
> +
All this type definition and registration boilerplate can
benefit from the OBJECT_DEFINE_TYPE macro family.
> +static inline bool addr_is_even(hwaddr addr, uint32_t shift)
> +{
> + return !((addr >> shift) & 1);
> +}
> +
> +static uint64_t xive2_end_source_read(void *opaque, hwaddr addr, unsigned size)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
> + uint32_t offset = addr & 0xFFF;
> + uint8_t end_blk;
> + uint32_t end_idx;
> + Xive2End end;
> + uint32_t end_esmask;
> + uint8_t pq;
> + uint64_t ret;
> +
> + /*
> + * The block id should be deduced from the load address on the END
> + * ESB MMIO but our model only supports a single block per XIVE chip.
> + */
> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
> + end_idx = addr >> (xsrc->esb_shift + 1);
> +
> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return -1;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return -1;
> + }
> +
> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
> + END2_W1_ESe;
> + pq = xive_get_field32(end_esmask, end.w1);
> +
> + switch (offset) {
> + case XIVE_ESB_LOAD_EOI ... XIVE_ESB_LOAD_EOI + 0x7FF:
> + ret = xive_esb_eoi(&pq);
> +
> + /* Forward the source event notification for routing ?? */
> + break;
> +
> + case XIVE_ESB_GET ... XIVE_ESB_GET + 0x3FF:
> + ret = pq;
> + break;
> +
> + case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
> + case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
> + case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
> + case XIVE_ESB_SET_PQ_11 ... XIVE_ESB_SET_PQ_11 + 0x0FF:
> + ret = xive_esb_set(&pq, (offset >> 8) & 0x3);
> + break;
> + default:
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB load addr %d\n",
> + offset);
> + return -1;
> + }
> +
> + if (pq != xive_get_field32(end_esmask, end.w1)) {
> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + return ret;
> +}
> +
> +static void xive2_end_source_write(void *opaque, hwaddr addr,
> + uint64_t value, unsigned size)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
> + uint32_t offset = addr & 0xFFF;
> + uint8_t end_blk;
> + uint32_t end_idx;
> + Xive2End end;
> + uint32_t end_esmask;
> + uint8_t pq;
> + bool notify = false;
> +
> + /*
> + * The block id should be deduced from the load address on the END
> + * ESB MMIO but our model only supports a single block per XIVE chip.
> + */
> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
> + end_idx = addr >> (xsrc->esb_shift + 1);
> +
> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
> + end_idx);
> + return;
> + }
> +
> + if (!xive2_end_is_valid(&end)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
> + end_blk, end_idx);
> + return;
> + }
> +
> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
> + END2_W1_ESe;
> + pq = xive_get_field32(end_esmask, end.w1);
> +
> + switch (offset) {
> + case 0 ... 0x3FF:
> + notify = xive_esb_trigger(&pq);
> + break;
> +
> + case XIVE_ESB_STORE_EOI ... XIVE_ESB_STORE_EOI + 0x3FF:
> + /* TODO: can we check StoreEOI availability from the router ? */
> + notify = xive_esb_eoi(&pq);
> + break;
> +
> + default:
> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
> + offset);
> + return;
> + }
> +
> + if (pq != xive_get_field32(end_esmask, end.w1)) {
> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
> + }
> +
> + /* TODO: Forward the source event notification for routing */
> + if (notify) {
> + ;
> + }
> +}
> +
> +static const MemoryRegionOps xive2_end_source_ops = {
> + .read = xive2_end_source_read,
> + .write = xive2_end_source_write,
> + .endianness = DEVICE_BIG_ENDIAN,
> + .valid = {
> + .min_access_size = 8,
> + .max_access_size = 8,
> + },
> + .impl = {
> + .min_access_size = 8,
> + .max_access_size = 8,
> + },
> +};
> +
> +static void xive2_end_source_realize(DeviceState *dev, Error **errp)
> +{
> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(dev);
> +
> + assert(xsrc->xrtr);
> +
> + if (!xsrc->nr_ends) {
> + error_setg(errp, "Number of interrupt needs to be greater than 0");
> + return;
> + }
> +
> + if (xsrc->esb_shift != XIVE_ESB_4K &&
> + xsrc->esb_shift != XIVE_ESB_64K) {
> + error_setg(errp, "Invalid ESB shift setting");
> + return;
> + }
> +
> + /*
> + * Each END is assigned an even/odd pair of MMIO pages, the even page
> + * manages the ESn field while the odd page manages the ESe field.
> + */
> + memory_region_init_io(&xsrc->esb_mmio, OBJECT(xsrc),
> + &xive2_end_source_ops, xsrc, "xive.end",
> + (1ull << (xsrc->esb_shift + 1)) * xsrc->nr_ends);
> +}
> +
> +static Property xive2_end_source_properties[] = {
> + DEFINE_PROP_UINT32("nr-ends", Xive2EndSource, nr_ends, 0),
> + DEFINE_PROP_UINT32("shift", Xive2EndSource, esb_shift, XIVE_ESB_64K),
> + DEFINE_PROP_LINK("xive", Xive2EndSource, xrtr, TYPE_XIVE2_ROUTER,
> + Xive2Router *),
> + DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void xive2_end_source_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> +
> + dc->desc = "XIVE END Source";
> + device_class_set_props(dc, xive2_end_source_properties);
> + dc->realize = xive2_end_source_realize;
> +}
> +
> +static const TypeInfo xive2_end_source_info = {
> + .name = TYPE_XIVE2_END_SOURCE,
> + .parent = TYPE_DEVICE,
> + .instance_size = sizeof(Xive2EndSource),
> + .class_init = xive2_end_source_class_init,
> +};
> +
> +static void xive2_register_types(void)
> +{
> + type_register_static(&xive2_router_info);
> + type_register_static(&xive2_end_source_info);
> +}
> +
> +type_init(xive2_register_types)
> diff --git a/hw/intc/meson.build b/hw/intc/meson.build
> index 6e52a166e38a..42af518f1c48 100644
> --- a/hw/intc/meson.build
> +++ b/hw/intc/meson.build
> @@ -39,7 +39,7 @@ specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_intc.c'))
> specific_ss.add(when: 'CONFIG_OMPIC', if_true: files('ompic.c'))
> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_OPENPIC'],
> if_true: files('openpic_kvm.c'))
> -specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c'))
> +specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c', 'pnv_xive2.c'))
> specific_ss.add(when: 'CONFIG_PPC_UIC', if_true: files('ppc-uic.c'))
> specific_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_ic.c', 'bcm2836_control.c'))
> specific_ss.add(when: 'CONFIG_RX_ICU', if_true: files('rx_icu.c'))
> @@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
> specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
> specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
> specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
> -specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
> +specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c', 'xive2.c'))
> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
> if_true: files('xics_kvm.c'))
> specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('xics_spapr.c', 'spapr_xive.c'))
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework
2021-08-23 15:15 ` Greg Kurz
@ 2021-08-30 7:17 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:17 UTC (permalink / raw)
To: Greg Kurz; +Cc: qemu-ppc, qemu-devel, David Gibson
On 8/23/21 5:15 PM, Greg Kurz wrote:
> On Mon, 9 Aug 2021 15:45:30 +0200
> Cédric Le Goater <clg@kaod.org> wrote:
>
>> The XIVE2 interrupt controller of the POWER10 processor as the same
>> logic as on POWER9 but its SW interface has been largely reworked. The
>> interrupt controller has a new register interface, different BARs,
>> extra VSDs. These will be described when we add the device model for
>> the baremetal machine.
>>
>> The XIVE internal structures for the EAS, END, NVT have different
>> layouts which is a problem for the current core XIVE framework. To
>> avoid adding too much complexity in the XIVE models, a new XIVE2 core
>> framework is introduced. It duplicates the models which are closely
>> linked to the XIVE internal structures : Xive2Router and
>> Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX
>> models, as they are more generic.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>
> I had a quick look only. Please find a few remarks below.
>
>> include/hw/ppc/xive2.h | 84 +++++
>> include/hw/ppc/xive2_regs.h | 198 +++++++++++
>> hw/intc/xive2.c | 672 ++++++++++++++++++++++++++++++++++++
>> hw/intc/meson.build | 4 +-
>> 4 files changed, 956 insertions(+), 2 deletions(-)
>> create mode 100644 include/hw/ppc/xive2.h
>> create mode 100644 include/hw/ppc/xive2_regs.h
>> create mode 100644 hw/intc/xive2.c
>>
>> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
>> new file mode 100644
>> index 000000000000..a14f430a09f7
>> --- /dev/null
>> +++ b/include/hw/ppc/xive2.h
>> @@ -0,0 +1,84 @@
>> +/*
>> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation.
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + *
>> + */
>> +
>> +#ifndef PPC_XIVE2_H
>> +#define PPC_XIVE2_H
>> +
>> +#include "hw/ppc/xive2_regs.h"
>> +
>> +/*
>> + * XIVE2 Router (POWER10)
>> + */
>> +typedef struct Xive2Router {
>> + SysBusDevice parent;
>> +
>> + XiveFabric *xfb;
>> +} Xive2Router;
>> +
>> +#define TYPE_XIVE2_ROUTER TYPE_XIVE_ROUTER "2"
>
> Hmm... this produces "xive-router2". It would seem better to define
> it as "xive2-router" IMHO.
Yes. I will fix.
>
>> +#define XIVE2_ROUTER(obj) \
>> + OBJECT_CHECK(Xive2Router, (obj), TYPE_XIVE2_ROUTER)
>> +#define XIVE2_ROUTER_CLASS(klass) \
>> + OBJECT_CLASS_CHECK(Xive2RouterClass, (klass), TYPE_XIVE2_ROUTER)
>> +#define XIVE2_ROUTER_GET_CLASS(obj) \
>> + OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
>> +
>
> It seems this could be abbreviated to :
>
> OBJECT_DECLARE_TYPE(Xive2Router, Xive2RouterClass, XIVE2_ROUTER);
>
yes.
>> +typedef struct Xive2RouterClass {
>> + SysBusDeviceClass parent;
>> +
>> + /* XIVE table accessors */
>> + int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas);
>> + int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end);
>> + int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number);
>> + int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp);
>> + int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number);
>> + uint8_t (*get_block_id)(Xive2Router *xrtr);
>> +} Xive2RouterClass;
>> +
>> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas);
>> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end);
>> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number);
>> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp);
>> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number);
>> +
>> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
>> +
>> +/*
>> + * XIVE2 END ESBs (POWER10)
>> + */
>> +
>> +#define TYPE_XIVE2_END_SOURCE TYPE_XIVE_END_SOURCE "2"
>
> Samre remark as with Xive2Router.
>
>> +#define XIVE2_END_SOURCE(obj) \
>> + OBJECT_CHECK(Xive2EndSource, (obj), TYPE_XIVE2_END_SOURCE)
>> +
>
> This could be:
>
> OBJECT_DECLARE_SIMPLE_TYPE(Xive2EndSource, XIVE2_END_SOURCE);
Indeed.
Thanks,
C.
>> +typedef struct Xive2EndSource {
>> + DeviceState parent;
>> +
>> + uint32_t nr_ends;
>> +
>> + /* ESB memory region */
>> + uint32_t esb_shift;
>> + MemoryRegion esb_mmio;
>> +
>> + Xive2Router *xrtr;
>> +} Xive2EndSource;
>> +
>> +
>> +#endif /* PPC_XIVE2_H */
>> diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
>> new file mode 100644
>> index 000000000000..f4827f4c6d54
>> --- /dev/null
>> +++ b/include/hw/ppc/xive2_regs.h
>> @@ -0,0 +1,198 @@
>> +/*
>> + * QEMU PowerPC XIVE2 internal structure definitions (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation.
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + */
>> +
>> +#ifndef PPC_XIVE2_REGS_H
>> +#define PPC_XIVE2_REGS_H
>> +
>> +/*
>> + * Thread Interrupt Management Area (TIMA)
>> + *
>> + * In Gen1 mode (P9 compat mode) word 2 is the same. However in Gen2
>> + * mode (P10), the CAM line is slightly different as the VP space was
>> + * increased.
>> + */
>> +#define TM2_QW0W2_VU PPC_BIT32(0)
>> +#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
>> +#define TM2_QW1W2_VO PPC_BIT32(0)
>> +#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
>> +#define TM2_QW2W2_VP PPC_BIT32(0)
>> +#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
>> +#define TM2_QW3W2_VT PPC_BIT32(0)
>> +#define TM2_QW3W2_LP PPC_BIT32(6)
>> +#define TM2_QW3W2_LE PPC_BIT32(7)
>> +
>> +/*
>> + * Event Assignment Structure (EAS)
>> + */
>> +
>> +typedef struct Xive2Eas {
>> + uint64_t w;
>> +#define EAS2_VALID PPC_BIT(0)
>> +#define EAS2_END_BLOCK PPC_BITMASK(4, 7) /* Destination EQ block# */
>> +#define EAS2_END_INDEX PPC_BITMASK(8, 31) /* Destination EQ index */
>> +#define EAS2_MASKED PPC_BIT(32) /* Masked */
>> +#define EAS2_END_DATA PPC_BITMASK(33, 63) /* written to the EQ */
>> +} Xive2Eas;
>> +
>> +#define xive2_eas_is_valid(eas) (be64_to_cpu((eas)->w) & EAS2_VALID)
>> +#define xive2_eas_is_masked(eas) (be64_to_cpu((eas)->w) & EAS2_MASKED)
>> +
>> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon);
>> +
>> +/*
>> + * Event Notifification Descriptor (END)
>> + */
>> +
>> +typedef struct Xive2End {
>> + uint32_t w0;
>> +#define END2_W0_VALID PPC_BIT32(0) /* "v" bit */
>> +#define END2_W0_ENQUEUE PPC_BIT32(5) /* "q" bit */
>> +#define END2_W0_UCOND_NOTIFY PPC_BIT32(6) /* "n" bit */
>> +#define END2_W0_SILENT_ESCALATE PPC_BIT32(7) /* "s" bit */
>> +#define END2_W0_BACKLOG PPC_BIT32(8) /* "b" bit */
>> +#define END2_W0_PRECL_ESC_CTL PPC_BIT32(9) /* "p" bit */
>> +#define END2_W0_UNCOND_ESCALATE PPC_BIT32(10) /* "u" bit */
>> +#define END2_W0_ESCALATE_CTL PPC_BIT32(11) /* "e" bit */
>> +#define END2_W0_ADAPTIVE_ESC PPC_BIT32(12) /* "a" bit */
>> +#define END2_W0_ESCALATE_END PPC_BIT32(13) /* "N" bit */
>> +#define END2_W0_FIRMWARE1 PPC_BIT32(16) /* Owned by FW */
>> +#define END2_W0_FIRMWARE2 PPC_BIT32(17) /* Owned by FW */
>> +#define END2_W0_AEC_SIZE PPC_BITMASK32(18, 19)
>> +#define END2_W0_AEG_SIZE PPC_BITMASK32(20, 23)
>> +#define END2_W0_EQ_VG_PREDICT PPC_BITMASK32(24, 31) /* Owned by HW */
>> + uint32_t w1;
>> +#define END2_W1_ESn PPC_BITMASK32(0, 1)
>> +#define END2_W1_ESn_P PPC_BIT32(0)
>> +#define END2_W1_ESn_Q PPC_BIT32(1)
>> +#define END2_W1_ESe PPC_BITMASK32(2, 3)
>> +#define END2_W1_ESe_P PPC_BIT32(2)
>> +#define END2_W1_ESe_Q PPC_BIT32(3)
>> +#define END2_W1_GEN_FLIPPED PPC_BIT32(8)
>> +#define END2_W1_GENERATION PPC_BIT32(9)
>> +#define END2_W1_PAGE_OFF PPC_BITMASK32(10, 31)
>> + uint32_t w2;
>> +#define END2_W2_RESERVED PPC_BITMASK32(4, 7)
>> +#define END2_W2_EQ_ADDR_HI PPC_BITMASK32(8, 31)
>> + uint32_t w3;
>> +#define END2_W3_EQ_ADDR_LO PPC_BITMASK32(0, 24)
>> +#define END2_W3_QSIZE PPC_BITMASK32(28, 31)
>> + uint32_t w4;
>> +#define END2_W4_END_BLOCK PPC_BITMASK32(4, 7)
>> +#define END2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31)
>> +#define END2_W4_ESB_BLOCK PPC_BITMASK32(0, 3)
>> +#define END2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31)
>> + uint32_t w5;
>> +#define END2_W5_ESC_END_DATA PPC_BITMASK32(1, 31)
>> + uint32_t w6;
>> +#define END2_W6_FORMAT_BIT PPC_BIT32(0)
>> +#define END2_W6_IGNORE PPC_BIT32(1)
>> +#define END2_W6_VP_BLOCK PPC_BITMASK32(4, 7)
>> +#define END2_W6_VP_OFFSET PPC_BITMASK32(8, 31)
>> +#define END2_W6_VP_OFFSET_GEN1 PPC_BITMASK32(13, 31)
>> + uint32_t w7;
>> +#define END2_W7_TOPO PPC_BITMASK32(0, 3) /* Owned by HW */
>> +#define END2_W7_F0_PRIORITY PPC_BITMASK32(8, 15)
>> +#define END2_W7_F1_LOG_SERVER_ID PPC_BITMASK32(4, 31)
>> +} Xive2End;
>> +
>> +#define xive2_end_is_valid(end) (be32_to_cpu((end)->w0) & END2_W0_VALID)
>> +#define xive2_end_is_enqueue(end) (be32_to_cpu((end)->w0) & END2_W0_ENQUEUE)
>> +#define xive2_end_is_notify(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_UCOND_NOTIFY)
>> +#define xive2_end_is_backlog(end) (be32_to_cpu((end)->w0) & END2_W0_BACKLOG)
>> +#define xive2_end_is_escalate(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_CTL)
>> +#define xive2_end_is_uncond_escalation(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_UNCOND_ESCALATE)
>> +#define xive2_end_is_silent_escalation(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_SILENT_ESCALATE)
>> +#define xive2_end_is_escalate_end(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_ESCALATE_END)
>> +#define xive2_end_is_firmware1(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE1)
>> +#define xive2_end_is_firmware2(end) \
>> + (be32_to_cpu((end)->w0) & END2_W0_FIRMWARE2)
>> +
>> +static inline uint64_t xive2_end_qaddr(Xive2End *end)
>> +{
>> + return ((uint64_t) be32_to_cpu(end->w2) & END2_W2_EQ_ADDR_HI) << 32 |
>> + (be32_to_cpu(end->w3) & END2_W3_EQ_ADDR_LO);
>> +}
>> +
>> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon);
>> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
>> + Monitor *mon);
>> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
>> + Monitor *mon);
>> +
>> +/*
>> + * Notification Virtual Processor (NVP)
>> + */
>> +typedef struct Xive2Nvp {
>> + uint32_t w0;
>> +#define NVP2_W0_VALID PPC_BIT32(0)
>> +#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
>> + uint32_t w1;
>> + uint32_t w2;
>> +#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
>> + uint32_t w3;
>> + uint32_t w4;
>> +#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
>> +#define NVP2_W4_ESC_ESB_INDEX PPC_BITMASK32(4, 31) /* N:0 */
>> +#define NVP2_W4_ESC_END_BLOCK PPC_BITMASK32(4, 7) /* N:1 */
>> +#define NVP2_W4_ESC_END_INDEX PPC_BITMASK32(8, 31) /* N:1 */
>> + uint32_t w5;
>> +#define NVP2_W5_PSIZE PPC_BITMASK32(0, 1)
>> +#define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7)
>> +#define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31)
>> + uint32_t w6;
>> + uint32_t w7;
>> +} Xive2Nvp;
>> +
>> +#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
>> +
>> +/*
>> + * The VP number space in a block is defined by the END2_W6_VP_OFFSET
>> + * field of the XIVE END. When running in Gen1 mode (P9 compat mode),
>> + * the VP space is reduced to (1 << 19) VPs per block
>> + */
>> +#define XIVE2_NVP_SHIFT 24
>> +#define XIVE2_NVP_COUNT (1 << XIVE2_NVP_SHIFT)
>> +
>> +static inline uint32_t xive2_nvp_cam_line(uint8_t nvp_blk, uint32_t nvp_idx)
>> +{
>> + return (nvp_blk << XIVE2_NVP_SHIFT) | nvp_idx;
>> +}
>> +
>> +static inline uint32_t xive2_nvp_idx(uint32_t cam_line)
>> +{
>> + return cam_line & ((1 << XIVE2_NVP_SHIFT) - 1);
>> +}
>> +
>> +static inline uint32_t xive2_nvp_blk(uint32_t cam_line)
>> +{
>> + return (cam_line >> XIVE2_NVP_SHIFT) & 0xf;
>> +}
>> +
>> +/*
>> + * Notification Virtual Group or Crowd (NVG/NVC)
>> + */
>> +typedef struct Xive2Nvgc {
>> + uint32_t w0;
>> +#define NVGC2_W0_VALID PPC_BIT32(0)
>> + uint32_t w1;
>> + uint32_t w2;
>> + uint32_t w3;
>> + uint32_t w4;
>> + uint32_t w5;
>> + uint32_t w6;
>> + uint32_t w7;
>> +} Xive2Nvgc;
>> +
>> +#endif /* PPC_XIVE2_REGS_H */
>> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
>> new file mode 100644
>> index 000000000000..b1c216b10006
>> --- /dev/null
>> +++ b/hw/intc/xive2.c
>> @@ -0,0 +1,672 @@
>> +/*
>> + * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
>> + *
>> + * Copyright (c) 2019-2021, IBM Corporation..
>> + *
>> + * This code is licensed under the GPL version 2 or later. See the
>> + * COPYING file in the top-level directory.
>> + */
>> +
>> +#include "qemu/osdep.h"
>> +#include "qemu/log.h"
>> +#include "qemu/module.h"
>> +#include "qapi/error.h"
>> +#include "target/ppc/cpu.h"
>> +#include "sysemu/cpus.h"
>> +#include "sysemu/dma.h"
>> +#include "hw/qdev-properties.h"
>> +#include "monitor/monitor.h"
>> +#include "hw/ppc/xive.h"
>> +#include "hw/ppc/xive2.h"
>> +#include "hw/ppc/xive2_regs.h"
>> +
>> +static uint8_t priority_to_ipb(uint8_t priority)
>> +{
>> + return priority > XIVE_PRIORITY_MAX ?
>> + 0 : 1 << (XIVE_PRIORITY_MAX - priority);
>> +}
>> +
>> +void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, Monitor *mon)
>> +{
>> + if (!xive2_eas_is_valid(eas)) {
>> + return;
>> + }
>> +
>> + monitor_printf(mon, " %08x %s end:%02x/%04x data:%08x\n",
>> + lisn, xive2_eas_is_masked(eas) ? "M" : " ",
>> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
>> +}
>> +
>> +void xive2_end_queue_pic_print_info(Xive2End *end, uint32_t width,
>> + Monitor *mon)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qentries = 1 << (qsize + 10);
>> + int i;
>> +
>> + /*
>> + * print out the [ (qindex - (width - 1)) .. (qindex + 1)] window
>> + */
>> + monitor_printf(mon, " [ ");
>> + qindex = (qindex - (width - 1)) & (qentries - 1);
>> + for (i = 0; i < width; i++) {
>> + uint64_t qaddr = qaddr_base + (qindex << 2);
>> + uint32_t qdata = -1;
>> +
>> + if (dma_memory_read(&address_space_memory, qaddr, &qdata,
>> + sizeof(qdata))) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to read EQ @0x%"
>> + HWADDR_PRIx "\n", qaddr);
>> + return;
>> + }
>> + monitor_printf(mon, "%s%08x ", i == width - 1 ? "^" : "",
>> + be32_to_cpu(qdata));
>> + qindex = (qindex + 1) & (qentries - 1);
>> + }
>> + monitor_printf(mon, "]");
>> +}
>> +
>> +void xive2_end_pic_print_info(Xive2End *end, uint32_t end_idx, Monitor *mon)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qentries = 1 << (qsize + 10);
>> +
>> + uint32_t nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end->w6);
>> + uint32_t nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end->w6);
>> + uint8_t priority = xive_get_field32(END2_W7_F0_PRIORITY, end->w7);
>> + uint8_t pq;
>> +
>> + if (!xive2_end_is_valid(end)) {
>> + return;
>> + }
>> +
>> + pq = xive_get_field32(END2_W1_ESn, end->w1);
>> +
>> + monitor_printf(mon,
>> + " %08x %c%c %c%c%c%c%c%c%c%c%c%c prio:%d nvp:%02x/%04x",
>> + end_idx,
>> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
>> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
>> + xive2_end_is_valid(end) ? 'v' : '-',
>> + xive2_end_is_enqueue(end) ? 'q' : '-',
>> + xive2_end_is_notify(end) ? 'n' : '-',
>> + xive2_end_is_backlog(end) ? 'b' : '-',
>> + xive2_end_is_escalate(end) ? 'e' : '-',
>> + xive2_end_is_escalate_end(end) ? 'N' : '-',
>> + xive2_end_is_uncond_escalation(end) ? 'u' : '-',
>> + xive2_end_is_silent_escalation(end) ? 's' : '-',
>> + xive2_end_is_firmware1(end) ? 'f' : '-',
>> + xive2_end_is_firmware2(end) ? 'F' : '-',
>> + priority, nvp_blk, nvp_idx);
>> +
>> + if (qaddr_base) {
>> + monitor_printf(mon, " eq:@%08"PRIx64"% 6d/%5d ^%d",
>> + qaddr_base, qindex, qentries, qgen);
>> + xive2_end_queue_pic_print_info(end, 6, mon);
>> + }
>> + monitor_printf(mon, "\n");
>> +}
>> +
>> +void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
>> + Monitor *mon)
>> +{
>> + Xive2Eas *eas = (Xive2Eas *) &end->w4;
>> + uint8_t pq;
>> +
>> + if (!xive2_end_is_escalate(end)) {
>> + return;
>> + }
>> +
>> + pq = xive_get_field32(END2_W1_ESe, end->w1);
>> +
>> + monitor_printf(mon, " %08x %c%c %c%c end:%02x/%04x data:%08x\n",
>> + end_idx,
>> + pq & XIVE_ESB_VAL_P ? 'P' : '-',
>> + pq & XIVE_ESB_VAL_Q ? 'Q' : '-',
>> + xive2_eas_is_valid(eas) ? 'v' : ' ',
>> + xive2_eas_is_masked(eas) ? 'M' : ' ',
>> + (uint8_t) xive_get_field64(EAS2_END_BLOCK, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_INDEX, eas->w),
>> + (uint32_t) xive_get_field64(EAS2_END_DATA, eas->w));
>> +}
>> +
>> +static void xive2_end_enqueue(Xive2End *end, uint32_t data)
>> +{
>> + uint64_t qaddr_base = xive2_end_qaddr(end);
>> + uint32_t qsize = xive_get_field32(END2_W3_QSIZE, end->w3);
>> + uint32_t qindex = xive_get_field32(END2_W1_PAGE_OFF, end->w1);
>> + uint32_t qgen = xive_get_field32(END2_W1_GENERATION, end->w1);
>> +
>> + uint64_t qaddr = qaddr_base + (qindex << 2);
>> + uint32_t qdata = cpu_to_be32((qgen << 31) | (data & 0x7fffffff));
>> + uint32_t qentries = 1 << (qsize + 10);
>> +
>> + if (dma_memory_write(&address_space_memory, qaddr, &qdata, sizeof(qdata))) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to write END data @0x%"
>> + HWADDR_PRIx "\n", qaddr);
>> + return;
>> + }
>> +
>> + qindex = (qindex + 1) & (qentries - 1);
>> + if (qindex == 0) {
>> + qgen ^= 1;
>> + end->w1 = xive_set_field32(END2_W1_GENERATION, end->w1, qgen);
>> +
>> + /* TODO(PowerNV): reset GF bit on a cache watch operation */
>> + end->w1 = xive_set_field32(END2_W1_GEN_FLIPPED, end->w1, qgen);
>> + }
>> + end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
>> +}
>> +/*
>> + * XIVE Router (aka. Virtualization Controller or IVRE)
>> + */
>> +
>> +int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
>> + Xive2Eas *eas)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
>> +}
>> +
>> +int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_end(xrtr, end_blk, end_idx, end);
>> +}
>> +
>> +int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
>> + Xive2End *end, uint8_t word_number)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->write_end(xrtr, end_blk, end_idx, end, word_number);
>> +}
>> +
>> +int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_nvp(xrtr, nvp_blk, nvp_idx, nvp);
>> +}
>> +
>> +int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>> + Xive2Nvp *nvp, uint8_t word_number)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number);
>> +}
>> +
>> +static int xive2_router_get_block_id(Xive2Router *xrtr)
>> +{
>> + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
>> +
>> + return xrc->get_block_id(xrtr);
>> +}
>> +
>> +static void xive2_router_realize(DeviceState *dev, Error **errp)
>> +{
>> + Xive2Router *xrtr = XIVE2_ROUTER(dev);
>> +
>> + assert(xrtr->xfb);
>> +}
>> +
>> +/*
>> + * Notification using the END ESe/ESn bit (Event State Buffer for
>> + * escalation and notification). Profide futher coalescing in the
>> + * Router.
>> + */
>> +static bool xive2_router_end_es_notify(Xive2Router *xrtr, uint8_t end_blk,
>> + uint32_t end_idx, Xive2End *end,
>> + uint32_t end_esmask)
>> +{
>> + uint8_t pq = xive_get_field32(end_esmask, end->w1);
>> + bool notify = xive_esb_trigger(&pq);
>> +
>> + if (pq != xive_get_field32(end_esmask, end->w1)) {
>> + end->w1 = xive_set_field32(end_esmask, end->w1, pq);
>> + xive2_router_write_end(xrtr, end_blk, end_idx, end, 1);
>> + }
>> +
>> + /* ESe/n[Q]=1 : end of notification */
>> + return notify;
>> +}
>> +
>> +/*
>> + * An END trigger can come from an event trigger (IPI or HW) or from
>> + * another chip. We don't model the PowerBus but the END trigger
>> + * message has the same parameters than in the function below.
>> + */
>> +static void xive2_router_end_notify(Xive2Router *xrtr, uint8_t end_blk,
>> + uint32_t end_idx, uint32_t end_data)
>> +{
>> + Xive2End end;
>> + uint8_t priority;
>> + uint8_t format;
>> + bool found;
>> + Xive2Nvp nvp;
>> + uint8_t nvp_blk;
>> + uint32_t nvp_idx;
>> +
>> + /* END cache lookup */
>> + if (xive2_router_get_end(xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + if (xive2_end_is_enqueue(&end)) {
>> + xive2_end_enqueue(&end, end_data);
>> + /* Enqueuing event data modifies the EQ toggle and index */
>> + xive2_router_write_end(xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + /*
>> + * When the END is silent, we skip the notification part.
>> + */
>> + if (xive2_end_is_silent_escalation(&end)) {
>> + goto do_escalation;
>> + }
>> +
>> + /*
>> + * The W7 format depends on the F bit in W6. It defines the type
>> + * of the notification :
>> + *
>> + * F=0 : single or multiple NVP notification
>> + * F=1 : User level Event-Based Branch (EBB) notification, no
>> + * priority
>> + */
>> + format = xive_get_field32(END2_W6_FORMAT_BIT, end.w6);
>> + priority = xive_get_field32(END2_W7_F0_PRIORITY, end.w7);
>> +
>> + /* The END is masked */
>> + if (format == 0 && priority == 0xff) {
>> + return;
>> + }
>> +
>> + /*
>> + * Check the END ESn (Event State Buffer for notification) for
>> + * even futher coalescing in the Router
>> + */
>> + if (!xive2_end_is_notify(&end)) {
>> + /* ESn[Q]=1 : end of notification */
>> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
>> + &end, END2_W1_ESn)) {
>> + return;
>> + }
>> + }
>> +
>> + /*
>> + * Follows IVPE notification
>> + */
>> + nvp_blk = xive_get_field32(END2_W6_VP_BLOCK, end.w6);
>> + nvp_idx = xive_get_field32(END2_W6_VP_OFFSET, end.w6);
>> +
>> + /* NVP cache lookup */
>> + if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: no NVP %x/%x\n",
>> + nvp_blk, nvp_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_nvp_is_valid(&nvp)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is invalid\n",
>> + nvp_blk, nvp_idx);
>> + return;
>> + }
>> +
>> + found = xive_presenter_notify(xrtr->xfb, format, nvp_blk, nvp_idx,
>> + xive_get_field32(END2_W6_IGNORE, end.w7),
>> + priority,
>> + xive_get_field32(END2_W7_F1_LOG_SERVER_ID, end.w7));
>> +
>> + /* TODO: Auto EOI. */
>> +
>> + if (found) {
>> + return;
>> + }
>> +
>> + /*
>> + * If no matching NVP is dispatched on a HW thread :
>> + * - specific VP: update the NVP structure if backlog is activated
>> + * - logical server : forward request to IVPE (not supported)
>> + */
>> + if (xive2_end_is_backlog(&end)) {
>> + uint8_t ipb;
>> +
>> + if (format == 1) {
>> + qemu_log_mask(LOG_GUEST_ERROR,
>> + "XIVE: END %x/%x invalid config: F1 & backlog\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + /*
>> + * Record the IPB in the associated NVP structure for later
>> + * use. The presenter will resend the interrupt when the vCPU
>> + * is dispatched again on a HW thread.
>> + */
>> + ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2) |
>> + priority_to_ipb(priority);
>> + nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, ipb);
>> + xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
>> +
>> + /*
>> + * On HW, follows a "Broadcast Backlog" to IVPEs
>> + */
>> + }
>> +
>> +do_escalation:
>> + /*
>> + * If activated, escalate notification using the ESe PQ bits and
>> + * the EAS in w4-5
>> + */
>> + if (!xive2_end_is_escalate(&end)) {
>> + return;
>> + }
>> +
>> + /*
>> + * Check the END ESe (Event State Buffer for escalation) for even
>> + * futher coalescing in the Router
>> + */
>> + if (!xive2_end_is_uncond_escalation(&end)) {
>> + /* ESe[Q]=1 : end of escalation notification */
>> + if (!xive2_router_end_es_notify(xrtr, end_blk, end_idx,
>> + &end, END2_W1_ESe)) {
>> + return;
>> + }
>> + }
>> +
>> + /*
>> + * The END trigger becomes an Escalation trigger
>> + */
>> + xive2_router_end_notify(xrtr,
>> + xive_get_field32(END2_W4_END_BLOCK, end.w4),
>> + xive_get_field32(END2_W4_ESC_END_INDEX, end.w4),
>> + xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
>> +}
>> +
>> +void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
>> +{
>> + Xive2Router *xrtr = XIVE2_ROUTER(xn);
>> + uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
>> + uint32_t eas_idx = XIVE_EAS_INDEX(lisn);
>> + Xive2Eas eas;
>> +
>> + /* EAS cache lookup */
>> + if (xive2_router_get_eas(xrtr, eas_blk, eas_idx, &eas)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Unknown LISN %x\n", lisn);
>> + return;
>> + }
>> +
>> + if (!xive2_eas_is_valid(&eas)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
>> + return;
>> + }
>> +
>> + if (xive2_eas_is_masked(&eas)) {
>> + /* Notification completed */
>> + return;
>> + }
>> +
>> + /*
>> + * The event trigger becomes an END trigger
>> + */
>> + xive2_router_end_notify(xrtr,
>> + xive_get_field64(EAS2_END_BLOCK, eas.w),
>> + xive_get_field64(EAS2_END_INDEX, eas.w),
>> + xive_get_field64(EAS2_END_DATA, eas.w));
>> +}
>> +
>> +static Property xive2_router_properties[] = {
>> + DEFINE_PROP_LINK("xive-fabric", Xive2Router, xfb,
>> + TYPE_XIVE_FABRIC, XiveFabric *),
>> + DEFINE_PROP_END_OF_LIST(),
>> +};
>> +
>> +static void xive2_router_class_init(ObjectClass *klass, void *data)
>> +{
>> + DeviceClass *dc = DEVICE_CLASS(klass);
>> + XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
>> +
>> + dc->desc = "XIVE2 Router Engine";
>> + device_class_set_props(dc, xive2_router_properties);
>> + /* Parent is SysBusDeviceClass. No need to call its realize hook */
>> + dc->realize = xive2_router_realize;
>> + xnc->notify = xive2_router_notify;
>> +}
>> +
>> +static const TypeInfo xive2_router_info = {
>> + .name = TYPE_XIVE2_ROUTER,
>> + .parent = TYPE_SYS_BUS_DEVICE,
>> + .abstract = true,
>> + .instance_size = sizeof(Xive2Router),
>> + .class_size = sizeof(Xive2RouterClass),
>> + .class_init = xive2_router_class_init,
>> + .interfaces = (InterfaceInfo[]) {
>> + { TYPE_XIVE_NOTIFIER },
>> + { TYPE_XIVE_PRESENTER },
>> + { }
>> + }
>> +};
>> +
>
> All this type definition and registration boilerplate can
> benefit from the OBJECT_DEFINE_TYPE macro family.
>
>> +static inline bool addr_is_even(hwaddr addr, uint32_t shift)
>> +{
>> + return !((addr >> shift) & 1);
>> +}
>> +
>> +static uint64_t xive2_end_source_read(void *opaque, hwaddr addr, unsigned size)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
>> + uint32_t offset = addr & 0xFFF;
>> + uint8_t end_blk;
>> + uint32_t end_idx;
>> + Xive2End end;
>> + uint32_t end_esmask;
>> + uint8_t pq;
>> + uint64_t ret;
>> +
>> + /*
>> + * The block id should be deduced from the load address on the END
>> + * ESB MMIO but our model only supports a single block per XIVE chip.
>> + */
>> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
>> + end_idx = addr >> (xsrc->esb_shift + 1);
>> +
>> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return -1;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return -1;
>> + }
>> +
>> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
>> + END2_W1_ESe;
>> + pq = xive_get_field32(end_esmask, end.w1);
>> +
>> + switch (offset) {
>> + case XIVE_ESB_LOAD_EOI ... XIVE_ESB_LOAD_EOI + 0x7FF:
>> + ret = xive_esb_eoi(&pq);
>> +
>> + /* Forward the source event notification for routing ?? */
>> + break;
>> +
>> + case XIVE_ESB_GET ... XIVE_ESB_GET + 0x3FF:
>> + ret = pq;
>> + break;
>> +
>> + case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
>> + case XIVE_ESB_SET_PQ_11 ... XIVE_ESB_SET_PQ_11 + 0x0FF:
>> + ret = xive_esb_set(&pq, (offset >> 8) & 0x3);
>> + break;
>> + default:
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB load addr %d\n",
>> + offset);
>> + return -1;
>> + }
>> +
>> + if (pq != xive_get_field32(end_esmask, end.w1)) {
>> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
>> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +static void xive2_end_source_write(void *opaque, hwaddr addr,
>> + uint64_t value, unsigned size)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(opaque);
>> + uint32_t offset = addr & 0xFFF;
>> + uint8_t end_blk;
>> + uint32_t end_idx;
>> + Xive2End end;
>> + uint32_t end_esmask;
>> + uint8_t pq;
>> + bool notify = false;
>> +
>> + /*
>> + * The block id should be deduced from the load address on the END
>> + * ESB MMIO but our model only supports a single block per XIVE chip.
>> + */
>> + end_blk = xive2_router_get_block_id(xsrc->xrtr);
>> + end_idx = addr >> (xsrc->esb_shift + 1);
>> +
>> + if (xive2_router_get_end(xsrc->xrtr, end_blk, end_idx, &end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No END %x/%x\n", end_blk,
>> + end_idx);
>> + return;
>> + }
>> +
>> + if (!xive2_end_is_valid(&end)) {
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: END %x/%x is invalid\n",
>> + end_blk, end_idx);
>> + return;
>> + }
>> +
>> + end_esmask = addr_is_even(addr, xsrc->esb_shift) ? END2_W1_ESn :
>> + END2_W1_ESe;
>> + pq = xive_get_field32(end_esmask, end.w1);
>> +
>> + switch (offset) {
>> + case 0 ... 0x3FF:
>> + notify = xive_esb_trigger(&pq);
>> + break;
>> +
>> + case XIVE_ESB_STORE_EOI ... XIVE_ESB_STORE_EOI + 0x3FF:
>> + /* TODO: can we check StoreEOI availability from the router ? */
>> + notify = xive_esb_eoi(&pq);
>> + break;
>> +
>> + default:
>> + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
>> + offset);
>> + return;
>> + }
>> +
>> + if (pq != xive_get_field32(end_esmask, end.w1)) {
>> + end.w1 = xive_set_field32(end_esmask, end.w1, pq);
>> + xive2_router_write_end(xsrc->xrtr, end_blk, end_idx, &end, 1);
>> + }
>> +
>> + /* TODO: Forward the source event notification for routing */
>> + if (notify) {
>> + ;
>> + }
>> +}
>> +
>> +static const MemoryRegionOps xive2_end_source_ops = {
>> + .read = xive2_end_source_read,
>> + .write = xive2_end_source_write,
>> + .endianness = DEVICE_BIG_ENDIAN,
>> + .valid = {
>> + .min_access_size = 8,
>> + .max_access_size = 8,
>> + },
>> + .impl = {
>> + .min_access_size = 8,
>> + .max_access_size = 8,
>> + },
>> +};
>> +
>> +static void xive2_end_source_realize(DeviceState *dev, Error **errp)
>> +{
>> + Xive2EndSource *xsrc = XIVE2_END_SOURCE(dev);
>> +
>> + assert(xsrc->xrtr);
>> +
>> + if (!xsrc->nr_ends) {
>> + error_setg(errp, "Number of interrupt needs to be greater than 0");
>> + return;
>> + }
>> +
>> + if (xsrc->esb_shift != XIVE_ESB_4K &&
>> + xsrc->esb_shift != XIVE_ESB_64K) {
>> + error_setg(errp, "Invalid ESB shift setting");
>> + return;
>> + }
>> +
>> + /*
>> + * Each END is assigned an even/odd pair of MMIO pages, the even page
>> + * manages the ESn field while the odd page manages the ESe field.
>> + */
>> + memory_region_init_io(&xsrc->esb_mmio, OBJECT(xsrc),
>> + &xive2_end_source_ops, xsrc, "xive.end",
>> + (1ull << (xsrc->esb_shift + 1)) * xsrc->nr_ends);
>> +}
>> +
>> +static Property xive2_end_source_properties[] = {
>> + DEFINE_PROP_UINT32("nr-ends", Xive2EndSource, nr_ends, 0),
>> + DEFINE_PROP_UINT32("shift", Xive2EndSource, esb_shift, XIVE_ESB_64K),
>> + DEFINE_PROP_LINK("xive", Xive2EndSource, xrtr, TYPE_XIVE2_ROUTER,
>> + Xive2Router *),
>> + DEFINE_PROP_END_OF_LIST(),
>> +};
>> +
>> +static void xive2_end_source_class_init(ObjectClass *klass, void *data)
>> +{
>> + DeviceClass *dc = DEVICE_CLASS(klass);
>> +
>> + dc->desc = "XIVE END Source";
>> + device_class_set_props(dc, xive2_end_source_properties);
>> + dc->realize = xive2_end_source_realize;
>> +}
>> +
>> +static const TypeInfo xive2_end_source_info = {
>> + .name = TYPE_XIVE2_END_SOURCE,
>> + .parent = TYPE_DEVICE,
>> + .instance_size = sizeof(Xive2EndSource),
>> + .class_init = xive2_end_source_class_init,
>> +};
>> +
>> +static void xive2_register_types(void)
>> +{
>> + type_register_static(&xive2_router_info);
>> + type_register_static(&xive2_end_source_info);
>> +}
>> +
>> +type_init(xive2_register_types)
>> diff --git a/hw/intc/meson.build b/hw/intc/meson.build
>> index 6e52a166e38a..42af518f1c48 100644
>> --- a/hw/intc/meson.build
>> +++ b/hw/intc/meson.build
>> @@ -39,7 +39,7 @@ specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_intc.c'))
>> specific_ss.add(when: 'CONFIG_OMPIC', if_true: files('ompic.c'))
>> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_OPENPIC'],
>> if_true: files('openpic_kvm.c'))
>> -specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c'))
>> +specific_ss.add(when: 'CONFIG_POWERNV', if_true: files('xics_pnv.c', 'pnv_xive.c', 'pnv_xive2.c'))
>> specific_ss.add(when: 'CONFIG_PPC_UIC', if_true: files('ppc-uic.c'))
>> specific_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_ic.c', 'bcm2836_control.c'))
>> specific_ss.add(when: 'CONFIG_RX_ICU', if_true: files('rx_icu.c'))
>> @@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true: files('s390_flic_kvm.c'))
>> specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
>> specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
>> specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
>> -specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
>> +specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c', 'xive2.c'))
>> specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
>> if_true: files('xics_kvm.c'))
>> specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('xics_spapr.c', 'spapr_xive.c'))
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (8 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 09/26] ppc/xive2: Introduce a XIVE2 core framework Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-25 6:01 ` David Gibson
2021-08-09 13:45 ` [PATCH 11/26] ppc/pnv: Add a XIVE2 controller to the POWER10 chip Cédric Le Goater
` (17 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The VP space is larger in XIVE2 (P10), 24 bits instead of 19bits on
XIVE (P9), and the CAM line can use a 7bits or 8bits thread id.
For now, we only use 7bits thread ids, same as P9, but because of the
change of the size of the VP space, the CAM matching routine is
different between P9 and P10. It is easier to duplicate the whole
routine than to add extra handlers in xive_presenter_tctx_match() used
for P9.
We might come with a better solution later on, after we have added
some more support for the XIVE2 controller.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive2.h | 9 +++++
hw/intc/xive2.c | 87 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 96 insertions(+)
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index a14f430a09f7..8a74fa7e4c7e 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -60,6 +60,15 @@ int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
+/*
+ * XIVE2 Presenter (POWER10)
+ */
+
+int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
+ uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint32_t logic_serv);
+
/*
* XIVE2 END ESBs (POWER10)
*/
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index b1c216b10006..55400628467b 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -20,6 +20,11 @@
#include "hw/ppc/xive2.h"
#include "hw/ppc/xive2_regs.h"
+static inline uint32_t xive_tctx_word2(uint8_t *ring)
+{
+ return *((uint32_t *) &ring[TM_WORD2]);
+}
+
static uint8_t priority_to_ipb(uint8_t priority)
{
return priority > XIVE_PRIORITY_MAX ?
@@ -215,6 +220,88 @@ static int xive2_router_get_block_id(Xive2Router *xrtr)
return xrc->get_block_id(xrtr);
}
+/*
+ * Encode the HW CAM line with 7bit or 8bit thread id. The thread id
+ * width and block id width is configurable at the IC level.
+ *
+ * chipid << 24 | 0000 0000 0000 0000 1 threadid (7Bit)
+ * chipid << 24 | 0000 0000 0000 0001 threadid (8Bit)
+ */
+static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx)
+{
+ Xive2Router *xrtr = XIVE2_ROUTER(xptr);
+ CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
+ uint32_t pir = env->spr_cb[SPR_PIR].default_value;
+ uint8_t blk = xive2_router_get_block_id(xrtr);
+ uint8_t tid_shift = 7;
+ uint8_t tid_mask = (1 << tid_shift) - 1;
+
+ return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask));
+}
+
+/*
+ * The thread context register words are in big-endian format.
+ */
+int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
+ uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint32_t logic_serv)
+{
+ uint32_t cam = xive2_nvp_cam_line(nvt_blk, nvt_idx);
+ uint32_t qw3w2 = xive_tctx_word2(&tctx->regs[TM_QW3_HV_PHYS]);
+ uint32_t qw2w2 = xive_tctx_word2(&tctx->regs[TM_QW2_HV_POOL]);
+ uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
+ uint32_t qw0w2 = xive_tctx_word2(&tctx->regs[TM_QW0_USER]);
+
+ /*
+ * TODO (PowerNV): ignore mode. The low order bits of the NVT
+ * identifier are ignored in the "CAM" match.
+ */
+
+ if (format == 0) {
+ if (cam_ignore == true) {
+ /*
+ * F=0 & i=1: Logical server notification (bits ignored at
+ * the end of the NVT identifier)
+ */
+ qemu_log_mask(LOG_UNIMP, "XIVE: no support for LS NVT %x/%x\n",
+ nvt_blk, nvt_idx);
+ return -1;
+ }
+
+ /* F=0 & i=0: Specific NVT notification */
+
+ /* PHYS ring */
+ if ((be32_to_cpu(qw3w2) & TM2_QW3W2_VT) &&
+ cam == xive2_tctx_hw_cam_line(xptr, tctx)) {
+ return TM_QW3_HV_PHYS;
+ }
+
+ /* HV POOL ring */
+ if ((be32_to_cpu(qw2w2) & TM2_QW2W2_VP) &&
+ cam == xive_get_field32(TM2_QW2W2_POOL_CAM, qw2w2)) {
+ return TM_QW2_HV_POOL;
+ }
+
+ /* OS ring */
+ if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
+ cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) {
+ return TM_QW1_OS;
+ }
+ } else {
+ /* F=1 : User level Event-Based Branch (EBB) notification */
+
+ /* USER ring */
+ if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
+ (cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) &&
+ (be32_to_cpu(qw0w2) & TM2_QW0W2_VU) &&
+ (logic_serv == xive_get_field32(TM2_QW0W2_LOGIC_SERV, qw0w2))) {
+ return TM_QW0_USER;
+ }
+ }
+ return -1;
+}
+
static void xive2_router_realize(DeviceState *dev, Error **errp)
{
Xive2Router *xrtr = XIVE2_ROUTER(dev);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine
2021-08-09 13:45 ` [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine Cédric Le Goater
@ 2021-08-25 6:01 ` David Gibson
2021-08-30 7:15 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: David Gibson @ 2021-08-25 6:01 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 5733 bytes --]
On Mon, Aug 09, 2021 at 03:45:31PM +0200, Cédric Le Goater wrote:
> The VP space is larger in XIVE2 (P10), 24 bits instead of 19bits on
> XIVE (P9), and the CAM line can use a 7bits or 8bits thread id.
>
> For now, we only use 7bits thread ids, same as P9, but because of the
> change of the size of the VP space, the CAM matching routine is
> different between P9 and P10. It is easier to duplicate the whole
> routine than to add extra handlers in xive_presenter_tctx_match() used
> for P9.
>
> We might come with a better solution later on, after we have added
> some more support for the XIVE2 controller.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> include/hw/ppc/xive2.h | 9 +++++
> hw/intc/xive2.c | 87 ++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 96 insertions(+)
>
> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
> index a14f430a09f7..8a74fa7e4c7e 100644
> --- a/include/hw/ppc/xive2.h
> +++ b/include/hw/ppc/xive2.h
> @@ -60,6 +60,15 @@ int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>
> void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
>
> +/*
> + * XIVE2 Presenter (POWER10)
> + */
> +
> +int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
> + uint8_t format,
> + uint8_t nvt_blk, uint32_t nvt_idx,
> + bool cam_ignore, uint32_t logic_serv);
> +
> /*
> * XIVE2 END ESBs (POWER10)
> */
> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
> index b1c216b10006..55400628467b 100644
> --- a/hw/intc/xive2.c
> +++ b/hw/intc/xive2.c
> @@ -20,6 +20,11 @@
> #include "hw/ppc/xive2.h"
> #include "hw/ppc/xive2_regs.h"
>
> +static inline uint32_t xive_tctx_word2(uint8_t *ring)
> +{
> + return *((uint32_t *) &ring[TM_WORD2]);
> +}
> +
> static uint8_t priority_to_ipb(uint8_t priority)
> {
> return priority > XIVE_PRIORITY_MAX ?
> @@ -215,6 +220,88 @@ static int xive2_router_get_block_id(Xive2Router *xrtr)
> return xrc->get_block_id(xrtr);
> }
>
> +/*
> + * Encode the HW CAM line with 7bit or 8bit thread id. The thread id
> + * width and block id width is configurable at the IC level.
> + *
> + * chipid << 24 | 0000 0000 0000 0000 1 threadid (7Bit)
> + * chipid << 24 | 0000 0000 0000 0001 threadid (8Bit)
> + */
> +static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx)
> +{
> + Xive2Router *xrtr = XIVE2_ROUTER(xptr);
> + CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
> + uint32_t pir = env->spr_cb[SPR_PIR].default_value;
> + uint8_t blk = xive2_router_get_block_id(xrtr);
> + uint8_t tid_shift = 7;
> + uint8_t tid_mask = (1 << tid_shift) - 1;
> +
> + return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask));
> +}
> +
> +/*
> + * The thread context register words are in big-endian format.
> + */
> +int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
> + uint8_t format,
> + uint8_t nvt_blk, uint32_t nvt_idx,
> + bool cam_ignore, uint32_t logic_serv)
> +{
> + uint32_t cam = xive2_nvp_cam_line(nvt_blk, nvt_idx);
> + uint32_t qw3w2 = xive_tctx_word2(&tctx->regs[TM_QW3_HV_PHYS]);
> + uint32_t qw2w2 = xive_tctx_word2(&tctx->regs[TM_QW2_HV_POOL]);
> + uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
> + uint32_t qw0w2 = xive_tctx_word2(&tctx->regs[TM_QW0_USER]);
> +
> + /*
> + * TODO (PowerNV): ignore mode. The low order bits of the NVT
> + * identifier are ignored in the "CAM" match.
> + */
> +
> + if (format == 0) {
> + if (cam_ignore == true) {
> + /*
> + * F=0 & i=1: Logical server notification (bits ignored at
> + * the end of the NVT identifier)
> + */
> + qemu_log_mask(LOG_UNIMP, "XIVE: no support for LS NVT %x/%x\n",
> + nvt_blk, nvt_idx);
> + return -1;
You seem to have copied a small indentation error here from
xive_presenter_tctx_match().
> + }
> +
> + /* F=0 & i=0: Specific NVT notification */
> +
> + /* PHYS ring */
> + if ((be32_to_cpu(qw3w2) & TM2_QW3W2_VT) &&
> + cam == xive2_tctx_hw_cam_line(xptr, tctx)) {
> + return TM_QW3_HV_PHYS;
> + }
> +
> + /* HV POOL ring */
> + if ((be32_to_cpu(qw2w2) & TM2_QW2W2_VP) &&
> + cam == xive_get_field32(TM2_QW2W2_POOL_CAM, qw2w2)) {
> + return TM_QW2_HV_POOL;
> + }
> +
> + /* OS ring */
> + if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
> + cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) {
> + return TM_QW1_OS;
> + }
> + } else {
> + /* F=1 : User level Event-Based Branch (EBB) notification */
> +
> + /* USER ring */
> + if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
> + (cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) &&
> + (be32_to_cpu(qw0w2) & TM2_QW0W2_VU) &&
> + (logic_serv == xive_get_field32(TM2_QW0W2_LOGIC_SERV, qw0w2))) {
> + return TM_QW0_USER;
> + }
> + }
> + return -1;
> +}
> +
> static void xive2_router_realize(DeviceState *dev, Error **errp)
> {
> Xive2Router *xrtr = XIVE2_ROUTER(dev);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine
2021-08-25 6:01 ` David Gibson
@ 2021-08-30 7:15 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-30 7:15 UTC (permalink / raw)
To: David Gibson; +Cc: qemu-ppc, Greg Kurz, qemu-devel
On 8/25/21 8:01 AM, David Gibson wrote:
> On Mon, Aug 09, 2021 at 03:45:31PM +0200, Cédric Le Goater wrote:
>> The VP space is larger in XIVE2 (P10), 24 bits instead of 19bits on
>> XIVE (P9), and the CAM line can use a 7bits or 8bits thread id.
>>
>> For now, we only use 7bits thread ids, same as P9, but because of the
>> change of the size of the VP space, the CAM matching routine is
>> different between P9 and P10. It is easier to duplicate the whole
>> routine than to add extra handlers in xive_presenter_tctx_match() used
>> for P9.
>>
>> We might come with a better solution later on, after we have added
>> some more support for the XIVE2 controller.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> include/hw/ppc/xive2.h | 9 +++++
>> hw/intc/xive2.c | 87 ++++++++++++++++++++++++++++++++++++++++++
>> 2 files changed, 96 insertions(+)
>>
>> diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
>> index a14f430a09f7..8a74fa7e4c7e 100644
>> --- a/include/hw/ppc/xive2.h
>> +++ b/include/hw/ppc/xive2.h
>> @@ -60,6 +60,15 @@ int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
>>
>> void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
>>
>> +/*
>> + * XIVE2 Presenter (POWER10)
>> + */
>> +
>> +int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
>> + uint8_t format,
>> + uint8_t nvt_blk, uint32_t nvt_idx,
>> + bool cam_ignore, uint32_t logic_serv);
>> +
>> /*
>> * XIVE2 END ESBs (POWER10)
>> */
>> diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
>> index b1c216b10006..55400628467b 100644
>> --- a/hw/intc/xive2.c
>> +++ b/hw/intc/xive2.c
>> @@ -20,6 +20,11 @@
>> #include "hw/ppc/xive2.h"
>> #include "hw/ppc/xive2_regs.h"
>>
>> +static inline uint32_t xive_tctx_word2(uint8_t *ring)
>> +{
>> + return *((uint32_t *) &ring[TM_WORD2]);
>> +}
>> +
>> static uint8_t priority_to_ipb(uint8_t priority)
>> {
>> return priority > XIVE_PRIORITY_MAX ?
>> @@ -215,6 +220,88 @@ static int xive2_router_get_block_id(Xive2Router *xrtr)
>> return xrc->get_block_id(xrtr);
>> }
>>
>> +/*
>> + * Encode the HW CAM line with 7bit or 8bit thread id. The thread id
>> + * width and block id width is configurable at the IC level.
>> + *
>> + * chipid << 24 | 0000 0000 0000 0000 1 threadid (7Bit)
>> + * chipid << 24 | 0000 0000 0000 0001 threadid (8Bit)
>> + */
>> +static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx)
>> +{
>> + Xive2Router *xrtr = XIVE2_ROUTER(xptr);
>> + CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
>> + uint32_t pir = env->spr_cb[SPR_PIR].default_value;
>> + uint8_t blk = xive2_router_get_block_id(xrtr);
>> + uint8_t tid_shift = 7;
>> + uint8_t tid_mask = (1 << tid_shift) - 1;
>> +
>> + return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask));
>> +}
>> +
>> +/*
>> + * The thread context register words are in big-endian format.
>> + */
>> +int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
>> + uint8_t format,
>> + uint8_t nvt_blk, uint32_t nvt_idx,
>> + bool cam_ignore, uint32_t logic_serv)
>> +{
>> + uint32_t cam = xive2_nvp_cam_line(nvt_blk, nvt_idx);
>> + uint32_t qw3w2 = xive_tctx_word2(&tctx->regs[TM_QW3_HV_PHYS]);
>> + uint32_t qw2w2 = xive_tctx_word2(&tctx->regs[TM_QW2_HV_POOL]);
>> + uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
>> + uint32_t qw0w2 = xive_tctx_word2(&tctx->regs[TM_QW0_USER]);
>> +
>> + /*
>> + * TODO (PowerNV): ignore mode. The low order bits of the NVT
>> + * identifier are ignored in the "CAM" match.
>> + */
>> +
>> + if (format == 0) {
>> + if (cam_ignore == true) {
>> + /*
>> + * F=0 & i=1: Logical server notification (bits ignored at
>> + * the end of the NVT identifier)
>> + */
>> + qemu_log_mask(LOG_UNIMP, "XIVE: no support for LS NVT %x/%x\n",
>> + nvt_blk, nvt_idx);
>> + return -1;
>
> You seem to have copied a small indentation error here from
> xive_presenter_tctx_match().
Indeed.
Thanks,
C.
>> + }
>> +
>> + /* F=0 & i=0: Specific NVT notification */
>> +
>> + /* PHYS ring */
>> + if ((be32_to_cpu(qw3w2) & TM2_QW3W2_VT) &&
>> + cam == xive2_tctx_hw_cam_line(xptr, tctx)) {
>> + return TM_QW3_HV_PHYS;
>> + }
>> +
>> + /* HV POOL ring */
>> + if ((be32_to_cpu(qw2w2) & TM2_QW2W2_VP) &&
>> + cam == xive_get_field32(TM2_QW2W2_POOL_CAM, qw2w2)) {
>> + return TM_QW2_HV_POOL;
>> + }
>> +
>> + /* OS ring */
>> + if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
>> + cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) {
>> + return TM_QW1_OS;
>> + }
>> + } else {
>> + /* F=1 : User level Event-Based Branch (EBB) notification */
>> +
>> + /* USER ring */
>> + if ((be32_to_cpu(qw1w2) & TM2_QW1W2_VO) &&
>> + (cam == xive_get_field32(TM2_QW1W2_OS_CAM, qw1w2)) &&
>> + (be32_to_cpu(qw0w2) & TM2_QW0W2_VU) &&
>> + (logic_serv == xive_get_field32(TM2_QW0W2_LOGIC_SERV, qw0w2))) {
>> + return TM_QW0_USER;
>> + }
>> + }
>> + return -1;
>> +}
>> +
>> static void xive2_router_realize(DeviceState *dev, Error **errp)
>> {
>> Xive2Router *xrtr = XIVE2_ROUTER(dev);
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 11/26] ppc/pnv: Add a XIVE2 controller to the POWER10 chip.
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (9 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 10/26] ppc/xive2: Introduce a presenter matching routine Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10 Cédric Le Goater
` (16 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The XIVE2 interrupt controller of the POWER10 processor follows the
same logic than on POWER9 but the HW interface has been largely
reviewed. It has a new register interface, different BARs, extra
VSDs, new layout for the XIVE2 structures, and a set of new features
which are described below.
This is a model of the POWER10 XIVE2 interrupt controller for the
PowerNV machine. It focuses primarily on the needs of the skiboot
firmware but some initial hypervisor support is implemented for KVM
use (escalation).
Support for new features will be implemented in time and will require
new support from the OS.
* XIVE2 BARS
The interrupt controller BARs have a different layout outlined below.
Each sub-engine has now own its range and the indirect TIMA access was
replaced with a set of pages, one per CPU, under the IC BAR:
- IC BAR (Interrupt Controller)
. 4 pages, one per sub-engine
. 128 indirect TIMA pages
- TM BAR (Thread Interrupt Management Area)
. 4 pages
- ESB BAR (ESB pages for IPIs)
. up to 1TB
- END BAR (ESB pages for ENDs)
. up to 2TB
- NVC BAR (Notification Virtual Crowd)
. up to 128
- NVPG BAR (Notification Virtual Process and Group)
. up to 1TB
- Direct mapped Thread Context Area (reads & writes)
OPAL does not use the grouping and crowd capability.
* Virtual Structure Tables
XIVE2 adds new tables types and also changes the field layout of the END
and NVP Virtualization Structure Descriptors.
- EAS
- END new layout
- NVT was splitted in :
. NVP (Processor), 32B
. NVG (Group), 32B
. NVC (Crowd == P9 block group) 32B
- IC for remote configuration
- SYNC for cache injection
- ERQ for event input queue
The setup is slighly different on XIVE2 because the indexing has changed
for some of the tables, block ID or the chip topology ID can be used.
* XIVE2 features
SCOM and MMIO registers have a new layout and XIVE2 adds a new global
capability and configuration registers.
The lowlevel hardware offers a set of new features among which :
- a configurable number of priorities : 1 - 8
- StoreEOI with load-after-store ordering is activated by default
- Gen2 TIMA layout
- A P9-compat mode, or Gen1, TIMA toggle bit for SW compatibility
- increase to 24bit for VP number
Other features will have some impact on the Hypervisor and guest OS
when activated, but this is not required for initial support of the
controller.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/intc/pnv_xive2_regs.h | 428 ++++++++
include/hw/ppc/pnv.h | 22 +
include/hw/ppc/pnv_xive.h | 75 ++
include/hw/ppc/pnv_xscom.h | 3 +
hw/intc/pnv_xive2.c | 2027 ++++++++++++++++++++++++++++++++++++
hw/ppc/pnv.c | 85 +-
6 files changed, 2637 insertions(+), 3 deletions(-)
create mode 100644 hw/intc/pnv_xive2_regs.h
create mode 100644 hw/intc/pnv_xive2.c
diff --git a/hw/intc/pnv_xive2_regs.h b/hw/intc/pnv_xive2_regs.h
new file mode 100644
index 000000000000..084fccc8d3e9
--- /dev/null
+++ b/hw/intc/pnv_xive2_regs.h
@@ -0,0 +1,428 @@
+/*
+ * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
+ *
+ * Copyright (c) 2019-2021, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#ifndef PPC_PNV_XIVE2_REGS_H
+#define PPC_PNV_XIVE2_REGS_H
+
+/*
+ * CQ Common Queue (PowerBus bridge) Registers
+ */
+
+/* XIVE2 Capabilities */
+#define X_CQ_XIVE_CAP 0x02
+#define CQ_XIVE_CAP 0x010
+#define CQ_XIVE_CAP_VERSION PPC_BITMASK(0, 3)
+/* 4:6 reserved */
+#define CQ_XIVE_CAP_USER_INT_PRIO PPC_BITMASK(8, 9)
+#define CQ_XIVE_CAP_USER_INT_PRIO_1 0
+#define CQ_XIVE_CAP_USER_INT_PRIO_1_2 1
+#define CQ_XIVE_CAP_USER_INT_PRIO_1_4 2
+#define CQ_XIVE_CAP_USER_INT_PRIO_1_8 3
+#define CQ_XIVE_CAP_VP_INT_PRIO PPC_BITMASK(10, 11)
+#define CQ_XIVE_CAP_VP_INT_PRIO_1_8 0
+#define CQ_XIVE_CAP_VP_INT_PRIO_2_8 1
+#define CQ_XIVE_CAP_VP_INT_PRIO_4_8 2
+#define CQ_XIVE_CAP_VP_INT_PRIO_8 3
+#define CQ_XIVE_CAP_BLOCK_ID_WIDTH PPC_BITMASK(12, 13)
+
+/* XIVE2 Configuration */
+#define X_CQ_XIVE_CFG 0x03
+#define CQ_XIVE_CFG 0x018
+
+/* 0:7 reserved */
+#define CQ_XIVE_CFG_USER_INT_PRIO PPC_BITMASK(8, 9)
+#define CQ_XIVE_CFG_VP_INT_PRIO PPC_BITMASK(10, 11)
+#define CQ_XIVE_CFG_INT_PRIO_1 0
+#define CQ_XIVE_CFG_INT_PRIO_2 1
+#define CQ_XIVE_CFG_INT_PRIO_4 2
+#define CQ_XIVE_CFG_INT_PRIO_8 3
+#define CQ_XIVE_CFG_BLOCK_ID_WIDTH PPC_BITMASK(12, 13)
+#define CQ_XIVE_CFG_BLOCK_ID_4BITS 0
+#define CQ_XIVE_CFG_BLOCK_ID_5BITS 1
+#define CQ_XIVE_CFG_BLOCK_ID_6BITS 2
+#define CQ_XIVE_CFG_BLOCK_ID_7BITS 3
+#define CQ_XIVE_CFG_HYP_HARD_RANGE PPC_BITMASK(14, 15)
+#define CQ_XIVE_CFG_THREADID_7BITS 0
+#define CQ_XIVE_CFG_THREADID_8BITS 1
+#define CQ_XIVE_CFG_THREADID_9BITS 2
+#define CQ_XIVE_CFG_THREADID_10BITs 3
+#define CQ_XIVE_CFG_HYP_HARD_BLKID_OVERRIDE PPC_BIT(16)
+#define CQ_XIVE_CFG_HYP_HARD_BLOCK_ID PPC_BITMASK(17, 23)
+
+/* Interrupt Controller Base Address Register - 512 pages (32M) */
+#define X_CQ_IC_BAR 0x08
+#define CQ_IC_BAR 0x040
+#define CQ_IC_BAR_VALID PPC_BIT(0)
+#define CQ_IC_BAR_64K PPC_BIT(1)
+/* 2:7 reserved */
+#define CQ_IC_BAR_ADDR PPC_BITMASK(8, 42)
+/* 43:63 reserved */
+
+/* Thread Management Base Address Register - 4 pages */
+#define X_CQ_TM_BAR 0x09
+#define CQ_TM_BAR 0x048
+#define CQ_TM_BAR_VALID PPC_BIT(0)
+#define CQ_TM_BAR_64K PPC_BIT(1)
+#define CQ_TM_BAR_ADDR PPC_BITMASK(8, 49)
+
+/* ESB Base Address Register */
+#define X_CQ_ESB_BAR 0x0A
+#define CQ_ESB_BAR 0x050
+#define CQ_BAR_VALID PPC_BIT(0)
+#define CQ_BAR_64K PPC_BIT(1)
+/* 2:7 reserved */
+#define CQ_BAR_ADDR PPC_BITMASK(8, 39)
+#define CQ_BAR_SET_DIV PPC_BITMASK(56, 58)
+#define CQ_BAR_RANGE PPC_BITMASK(59, 63)
+ /* 0 (16M) - 16 (16T) */
+
+/* END Base Address Register */
+#define X_CQ_END_BAR 0x0B
+#define CQ_END_BAR 0x058
+
+/* NVPG Base Address Register */
+#define X_CQ_NVPG_BAR 0x0C
+#define CQ_NVPG_BAR 0x060
+
+/* NVC Base Address Register */
+#define X_CQ_NVC_BAR 0x0D
+#define CQ_NVC_BAR 0x068
+
+/* Table Address Register */
+#define X_CQ_TAR 0x0E
+#define CQ_TAR 0x070
+#define CQ_TAR_AUTOINC PPC_BIT(0)
+#define CQ_TAR_SELECT PPC_BITMASK(12, 15)
+#define CQ_TAR_ESB 0 /* 0 - 15 */
+#define CQ_TAR_END 2 /* 0 - 15 */
+#define CQ_TAR_NVPG 3 /* 0 - 15 */
+#define CQ_TAR_NVC 5 /* 0 - 15 */
+#define CQ_TAR_ENTRY_SELECT PPC_BITMASK(28, 31)
+
+/* Table Data Register */
+#define X_CQ_TDR 0x0F
+#define CQ_TDR 0x078
+/* for the NVPG, NVC, ESB, END Set Translation Tables */
+#define CQ_TDR_VALID PPC_BIT(0)
+#define CQ_TDR_BLOCK_ID PPC_BITMASK(60, 63)
+
+/*
+ * Processor Cores Enabled for MsgSnd
+ * Identifies which of the 32 possible core chiplets are enabled and
+ * available to receive the MsgSnd command
+ */
+#define X_CQ_MSGSND 0x10
+#define CQ_MSGSND 0x080
+
+/* Interrupt Unit Reset Control */
+#define X_CQ_RST_CTL 0x12
+#define CQ_RST_CTL 0x090
+#define CQ_RST_SYNC_RESET PPC_BIT(0) /* Write Only */
+#define CQ_RST_QUIESCE_PB PPC_BIT(1) /* RW */
+#define CQ_RST_MASTER_IDLE PPC_BIT(2) /* Read Only */
+#define CQ_RST_SAVE_IDLE PPC_BIT(3) /* Read Only */
+#define CQ_RST_PB_BAR_RESET PPC_BIT(4) /* Write Only */
+
+/* PowerBus General Configuration */
+#define X_CQ_CFG_PB_GEN 0x14
+#define CQ_CFG_PB_GEN 0x0A0
+#define CQ_CFG_PB_GEN_PB_INIT PPC_BIT(45)
+
+/*
+ * FIR
+ * (And-Mask)
+ * (Or-Mask)
+ */
+#define X_CQ_FIR 0x30
+#define X_CQ_FIR_AND 0x31
+#define X_CQ_FIR_OR 0x32
+#define CQ_FIR 0x180
+#define CQ_FIR_AND 0x188
+#define CQ_FIR_OR 0x190
+#define CQ_FIR_PB_RCMDX_CI_ERR1 PPC_BIT(19)
+#define CQ_FIR_VC_INFO_ERROR_0_2 PPC_BITMASK(61, 63)
+
+/*
+ * FIR Mask
+ * (And-Mask)
+ * (Or-Mask)
+ */
+#define X_CQ_FIRMASK 0x33
+#define X_CQ_FIRMASK_AND 0x34
+#define X_CQ_FIRMASK_OR 0x35
+#define CQ_FIRMASK 0x198
+#define CQ_FIRMASK_AND 0x1A0
+#define CQ_FIRMASK_OR 0x1A8
+
+/*
+ * VC0
+ */
+
+/* VSD table address */
+#define X_VC_VSD_TABLE_ADDR 0x100
+#define VC_VSD_TABLE_ADDR 0x000
+#define VC_VSD_TABLE_AUTOINC PPC_BIT(0)
+#define VC_VSD_TABLE_SELECT PPC_BITMASK(12, 15)
+#define VC_VSD_TABLE_ADDRESS PPC_BITMASK(28, 31)
+
+/* VSD table data */
+#define X_VC_VSD_TABLE_DATA 0x101
+#define VC_VSD_TABLE_DATA 0x008
+
+/* AIB AT macro indirect kill */
+#define X_VC_AT_MACRO_KILL 0x102
+#define VC_AT_MACRO_KILL 0x010
+#define VC_AT_MACRO_KILL_VALID PPC_BIT(0)
+#define VC_AT_MACRO_KILL_VSD PPC_BITMASK(12, 15)
+#define VC_AT_MACRO_KILL_BLOCK_ID PPC_BITMASK(28, 31)
+#define VC_AT_MACRO_KILL_OFFSET PPC_BITMASK(48, 60)
+
+/* AIB AT macro indirect kill mask (same bit definitions) */
+#define X_VC_AT_MACRO_KILL_MASK 0x103
+#define VC_AT_MACRO_KILL_MASK 0x018
+
+/* Remote IRQs and ERQs configuration [n] (n = 0:6) */
+#define X_VC_QUEUES_CFG_REM0 0x117
+
+#define VC_QUEUES_CFG_REM0 0x0B8
+#define VC_QUEUES_CFG_REM1 0x0C0
+#define VC_QUEUES_CFG_REM2 0x0C8
+#define VC_QUEUES_CFG_REM3 0x0D0
+#define VC_QUEUES_CFG_REM4 0x0D8
+#define VC_QUEUES_CFG_REM5 0x0E0
+#define VC_QUEUES_CFG_REM6 0x0E8
+#define VC_QUEUES_CFG_MEMB_EN PPC_BIT(38)
+#define VC_QUEUES_CFG_MEMB_SZ PPC_BITMASK(42, 47)
+
+/*
+ * VC1
+ */
+
+/* ESBC cache flush control trigger */
+#define X_VC_ESBC_FLUSH_CTRL 0x140
+#define VC_ESBC_FLUSH_CTRL 0x200
+#define VC_ESBC_FLUSH_CTRL_POLL_VALID PPC_BIT(0)
+#define VC_ESBC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2)
+
+/* ESBC cache flush poll trigger */
+#define X_VC_ESBC_FLUSH_POLL 0x141
+#define VC_ESBC_FLUSH_POLL 0x208
+#define VC_ESBC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(0, 3)
+#define VC_ESBC_FLUSH_POLL_OFFSET PPC_BITMASK(4, 31) /* 28-bit */
+#define VC_ESBC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(32, 35)
+#define VC_ESBC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(36, 63) /* 28-bit */
+
+/* EASC flush control register */
+#define X_VC_EASC_FLUSH_CTRL 0x160
+#define VC_EASC_FLUSH_CTRL 0x300
+#define VC_EASC_FLUSH_CTRL_POLL_VALID PPC_BIT(0)
+#define VC_EASC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2)
+
+/* EASC flush poll register */
+#define X_VC_EASC_FLUSH_POLL 0x161
+#define VC_EASC_FLUSH_POLL 0x308
+#define VC_EASC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(0, 3)
+#define VC_EASC_FLUSH_POLL_OFFSET PPC_BITMASK(4, 31) /* 28-bit */
+#define VC_EASC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(32, 35)
+#define VC_EASC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(36, 63) /* 28-bit */
+
+/*
+ * VC2
+ */
+
+/* ENDC flush control register */
+#define X_VC_ENDC_FLUSH_CTRL 0x180
+#define VC_ENDC_FLUSH_CTRL 0x400
+#define VC_ENDC_FLUSH_CTRL_POLL_VALID PPC_BIT(0)
+#define VC_ENDC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2)
+#define VC_ENDC_FLUSH_CTRL_WANT_INVALIDATE PPC_BIT(3)
+#define VC_ENDC_FLUSH_CTRL_INJECT_INVALIDATE PPC_BIT(7)
+
+/* ENDC flush poll register */
+#define X_VC_ENDC_FLUSH_POLL 0x181
+#define VC_ENDC_FLUSH_POLL 0x408
+#define VC_ENDC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(4, 7)
+#define VC_ENDC_FLUSH_POLL_OFFSET PPC_BITMASK(8, 31) /* 24-bit */
+#define VC_ENDC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(36, 39)
+#define VC_ENDC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(40, 63) /* 24-bit */
+
+/* ENDC Sync done */
+#define X_VC_ENDC_SYNC_DONE 0x184
+#define VC_ENDC_SYNC_DONE 0x420
+#define VC_ENDC_SYNC_POLL_DONE PPC_BITMASK(0, 6)
+#define VC_ENDC_SYNC_QUEUE_IPI PPC_BIT(0)
+#define VC_ENDC_SYNC_QUEUE_HWD PPC_BIT(1)
+#define VC_ENDC_SYNC_QUEUE_NXC PPC_BIT(2)
+#define VC_ENDC_SYNC_QUEUE_INT PPC_BIT(3)
+#define VC_ENDC_SYNC_QUEUE_OS PPC_BIT(4)
+#define VC_ENDC_SYNC_QUEUE_POOL PPC_BIT(5)
+#define VC_ENDC_SYNC_QUEUE_HARD PPC_BIT(6)
+#define VC_QUEUE_COUNT 7
+
+/* ENDC cache watch specification 0 */
+#define X_VC_ENDC_WATCH0_SPEC 0x1A0
+#define VC_ENDC_WATCH0_SPEC 0x500
+#define VC_ENDC_WATCH_CONFLICT PPC_BIT(0)
+#define VC_ENDC_WATCH_FULL PPC_BIT(8)
+#define VC_ENDC_WATCH_BLOCK_ID PPC_BITMASK(28, 31)
+#define VC_ENDC_WATCH_INDEX PPC_BITMASK(40, 63)
+
+/* ENDC cache watch data 0 */
+#define X_VC_ENDC_WATCH0_DATA0 0x1A4
+#define X_VC_ENDC_WATCH0_DATA1 0x1A5
+#define X_VC_ENDC_WATCH0_DATA2 0x1A6
+#define X_VC_ENDC_WATCH0_DATA3 0x1A7
+
+#define VC_ENDC_WATCH0_DATA0 0x520
+#define VC_ENDC_WATCH0_DATA1 0x528
+#define VC_ENDC_WATCH0_DATA2 0x530
+#define VC_ENDC_WATCH0_DATA3 0x538
+
+/*
+ * PC LSB1
+ */
+
+/* VSD table address register */
+#define X_PC_VSD_TABLE_ADDR 0x200
+#define PC_VSD_TABLE_ADDR 0x000
+#define PC_VSD_TABLE_AUTOINC PPC_BIT(0)
+#define PC_VSD_TABLE_SELECT PPC_BITMASK(12, 15)
+#define PC_VSD_TABLE_ADDRESS PPC_BITMASK(28, 31)
+
+/* VSD table data register */
+#define X_PC_VSD_TABLE_DATA 0x201
+#define PC_VSD_TABLE_DATA 0x008
+
+/* AT indirect kill register */
+#define X_PC_AT_KILL 0x202
+#define PC_AT_KILL 0x010
+#define PC_AT_KILL_VALID PPC_BIT(0)
+#define PC_AT_KILL_VSD_TYPE PPC_BITMASK(24, 27)
+/* Only NVP, NVG, NVC */
+#define PC_AT_KILL_BLOCK_ID PPC_BITMASK(28, 31)
+#define PC_AT_KILL_OFFSET PPC_BITMASK(48, 60)
+
+/* AT indirect kill mask register */
+#define X_PC_AT_KILL_MASK 0x203
+#define PC_AT_KILL_MASK 0x018
+#define PC_AT_KILL_MASK_VSD_TYPE PPC_BITMASK(24, 27)
+#define PC_AT_KILL_MASK_BLOCK_ID PPC_BITMASK(28, 31)
+#define PC_AT_KILL_MASK_OFFSET PPC_BITMASK(48, 60)
+
+/*
+ * PC LSB2
+ */
+
+/* NxC Cache flush control */
+#define X_PC_NXC_FLUSH_CTRL 0x280
+#define PC_NXC_FLUSH_CTRL 0x400
+#define PC_NXC_FLUSH_CTRL_POLL_VALID PPC_BIT(0)
+#define PC_NXC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2)
+#define PC_NXC_FLUSH_CTRL_WANT_INVALIDATE PPC_BIT(3)
+#define PC_NXC_FLUSH_CTRL_INJECT_INVALIDATE PPC_BIT(7)
+
+/* NxC Cache flush poll */
+#define X_PC_NXC_FLUSH_POLL 0x281
+#define PC_NXC_FLUSH_POLL 0x408
+#define PC_NXC_FLUSH_POLL_NXC_TYPE PPC_BITMASK(2, 3)
+#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVP 0
+#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVG 2
+#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVC 3
+#define PC_NXC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(4, 7)
+#define PC_NXC_FLUSH_POLL_OFFSET PPC_BITMASK(8, 31) /* 24-bit */
+#define PC_NXC_FLUSH_POLL_NXC_TYPE_MASK PPC_BITMASK(34, 35) /* 0: Ign */
+#define PC_NXC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(36, 39)
+#define PC_NXC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(40, 63) /* 24-bit */
+
+/* NxC Cache Watch 0 Specification */
+#define X_PC_NXC_WATCH0_SPEC 0x2A0
+#define PC_NXC_WATCH0_SPEC 0x500
+#define PC_NXC_WATCH_CONFLICT PPC_BIT(0)
+#define PC_NXC_WATCH_FULL PPC_BIT(8)
+#define PC_NXC_WATCH_NXC_TYPE PPC_BITMASK(26, 27)
+#define PC_NXC_WATCH_NXC_NVP 0
+#define PC_NXC_WATCH_NXC_NVG 2
+#define PC_NXC_WATCH_NXC_NVC 3
+#define PC_NXC_WATCH_BLOCK_ID PPC_BITMASK(28, 31)
+#define PC_NXC_WATCH_INDEX PPC_BITMASK(40, 63)
+
+/* NxC Cache Watch 0 Data */
+#define X_PC_NXC_WATCH0_DATA0 0x2A4
+#define X_PC_NXC_WATCH0_DATA1 0x2A5
+#define X_PC_NXC_WATCH0_DATA2 0x2A6
+#define X_PC_NXC_WATCH0_DATA3 0x2A7
+
+#define PC_NXC_WATCH0_DATA0 0x520
+#define PC_NXC_WATCH0_DATA1 0x528
+#define PC_NXC_WATCH0_DATA2 0x530
+#define PC_NXC_WATCH0_DATA3 0x538
+
+/*
+ * TCTXT Registers
+ */
+
+/* Physical Thread Enable0 register */
+#define X_TCTXT_EN0 0x300
+#define TCTXT_EN0 0x000
+
+/* Physical Thread Enable0 Set register */
+#define X_TCTXT_EN0_SET 0x302
+#define TCTXT_EN0_SET 0x010
+
+/* Physical Thread Enable0 Reset register */
+#define X_TCTXT_EN0_RESET 0x303
+#define TCTXT_EN0_RESET 0x018
+
+/* Physical Thread Enable1 register */
+#define X_TCTXT_EN1 0x304
+#define TCTXT_EN1 0x020
+
+/* Physical Thread Enable1 Set register */
+#define X_TCTXT_EN1_SET 0x306
+#define TCTXT_EN1_SET 0x030
+
+/* Physical Thread Enable1 Reset register */
+#define X_TCTXT_EN1_RESET 0x307
+#define TCTXT_EN1_RESET 0x038
+
+/*
+ * VSD Tables
+ */
+#define VST_ESB 0
+#define VST_EAS 1 /* No used by PC */
+#define VST_END 2
+#define VST_NVP 3
+#define VST_NVG 4
+#define VST_NVC 5
+#define VST_IC 6 /* No used by PC */
+#define VST_SYNC 7
+#define VST_ERQ 8 /* No used by PC */
+
+/*
+ * Bits in a VSD entry.
+ *
+ * Note: the address is naturally aligned, we don't use a PPC_BITMASK,
+ * but just a mask to apply to the address before OR'ing it in.
+ *
+ * Note: VSD_FIRMWARE is a SW bit ! It hijacks an unused bit in the
+ * VSD and is only meant to be used in indirect mode !
+ */
+#define VSD_MODE PPC_BITMASK(0, 1)
+#define VSD_MODE_SHARED 1
+#define VSD_MODE_EXCLUSIVE 2
+#define VSD_MODE_FORWARD 3
+#define VSD_FIRMWARE PPC_BIT(2) /* Read warning */
+#define VSD_FIRMWARE2 PPC_BIT(3) /* unused */
+#define VSD_RESERVED PPC_BITMASK(4, 7) /* P10 reserved */
+#define VSD_ADDRESS_MASK 0x00fffffffffff000ull
+#define VSD_MIGRATION_REG PPC_BITMASK(52, 55)
+#define VSD_INDIRECT PPC_BIT(56)
+#define VSD_TSIZE PPC_BITMASK(59, 63)
+
+#endif /* PPC_PNV_XIVE2_REGS_H */
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index aa08d79d24de..b773b09f9f8e 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -124,10 +124,14 @@ struct Pnv10Chip {
PnvChip parent_obj;
/*< public >*/
+ PnvXive2 xive;
Pnv9Psi psi;
PnvLpcController lpc;
};
+#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
+#define PNV10_PIR2CHIP(pir) (((pir) >> 8) & 0x7f)
+
struct PnvChipClass {
/*< private >*/
SysBusDeviceClass parent_class;
@@ -323,10 +327,28 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
#define PNV10_LPCM_SIZE 0x0000000100000000ull
#define PNV10_LPCM_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030000000000ull)
+#define PNV10_XIVE2_IC_SIZE 0x0000000002000000ull
+#define PNV10_XIVE2_IC_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030200000000ull)
+
#define PNV10_PSIHB_ESB_SIZE 0x0000000000100000ull
#define PNV10_PSIHB_ESB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030202000000ull)
#define PNV10_PSIHB_SIZE 0x0000000000100000ull
#define PNV10_PSIHB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030203000000ull)
+#define PNV10_XIVE2_TM_SIZE 0x0000000000040000ull
+#define PNV10_XIVE2_TM_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030203180000ull)
+
+#define PNV10_XIVE2_NVC_SIZE 0x0000000008000000ull
+#define PNV10_XIVE2_NVC_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030208000000ull)
+
+#define PNV10_XIVE2_NVPG_SIZE 0x0000010000000000ull
+#define PNV10_XIVE2_NVPG_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006040000000000ull)
+
+#define PNV10_XIVE2_ESB_SIZE 0x0000010000000000ull
+#define PNV10_XIVE2_ESB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006050000000000ull)
+
+#define PNV10_XIVE2_END_SIZE 0x0000020000000000ull
+#define PNV10_XIVE2_END_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006060000000000ull)
+
#endif /* PPC_PNV_H */
diff --git a/include/hw/ppc/pnv_xive.h b/include/hw/ppc/pnv_xive.h
index 7928e279639a..ba5cf8bdb101 100644
--- a/include/hw/ppc/pnv_xive.h
+++ b/include/hw/ppc/pnv_xive.h
@@ -12,6 +12,7 @@
#include "hw/ppc/xive.h"
#include "qom/object.h"
+#include "hw/ppc/xive2.h"
struct PnvChip;
@@ -95,4 +96,78 @@ struct PnvXiveClass {
void pnv_xive_pic_print_info(PnvXive *xive, Monitor *mon);
+/*
+ * XIVE2 interrupt controller (POWER10)
+ */
+#define TYPE_PNV_XIVE2 TYPE_PNV_XIVE "2"
+#define PNV_XIVE2(obj) OBJECT_CHECK(PnvXive2, (obj), TYPE_PNV_XIVE2)
+#define PNV_XIVE2_CLASS(klass) \
+ OBJECT_CLASS_CHECK(PnvXive2Class, (klass), TYPE_PNV_XIVE2)
+#define PNV_XIVE2_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(PnvXive2Class, (obj), TYPE_PNV_XIVE2)
+
+typedef struct PnvXive2 {
+ Xive2Router parent_obj;
+
+ /* Owning chip */
+ struct PnvChip *chip;
+
+ /* XSCOM addresses giving access to the controller registers */
+ MemoryRegion xscom_regs;
+
+ MemoryRegion ic_mmio;
+ MemoryRegion ic_mmios[8];
+ MemoryRegion esb_mmio;
+ MemoryRegion end_mmio;
+ MemoryRegion nvc_mmio;
+ MemoryRegion nvpg_mmio;
+ MemoryRegion tm_mmio;
+
+ /* Shortcut values for the Main MMIO regions */
+ hwaddr ic_base;
+ uint32_t ic_shift;
+ hwaddr esb_base;
+ uint32_t esb_shift;
+ hwaddr end_base;
+ uint32_t end_shift;
+ hwaddr nvc_base;
+ uint32_t nvc_shift;
+ hwaddr nvpg_base;
+ uint32_t nvpg_shift;
+ hwaddr tm_base;
+ uint32_t tm_shift;
+
+ /* Interrupt controller registers */
+ uint64_t cq_regs[0x40];
+ uint64_t vc_regs[0x100];
+ uint64_t pc_regs[0x100];
+ uint64_t tctxt_regs[0x30];
+
+ /* To change default behavior */
+ uint64_t capabilities;
+ uint64_t config;
+
+ /* Our XIVE source objects for IPIs and ENDs */
+ XiveSource ipi_source;
+ Xive2EndSource end_source;
+
+ /*
+ * Virtual Structure Descriptor tables
+ * These are in a SRAM protected by ECC.
+ */
+ uint64_t vsds[9][XIVE_BLOCK_MAX];
+
+ /* Translation tables */
+ uint64_t tables[8][XIVE_BLOCK_MAX];
+
+} PnvXive2;
+
+typedef struct PnvXive2Class {
+ Xive2RouterClass parent_class;
+
+ DeviceRealize parent_realize;
+} PnvXive2Class;
+
+void pnv_xive2_pic_print_info(PnvXive2 *xive, Monitor *mon);
+
#endif /* PPC_PNV_XIVE_H */
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 2ff9f7a8d6fe..188da874a4b0 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -131,6 +131,9 @@ struct PnvXScomInterfaceClass {
#define PNV10_XSCOM_PSIHB_BASE 0x3011D00
#define PNV10_XSCOM_PSIHB_SIZE 0x100
+#define PNV10_XSCOM_XIVE2_BASE 0x2010800
+#define PNV10_XSCOM_XIVE2_SIZE 0x400
+
void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
uint64_t xscom_base, uint64_t xscom_size,
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
new file mode 100644
index 000000000000..b9abd022cf08
--- /dev/null
+++ b/hw/intc/pnv_xive2.c
@@ -0,0 +1,2027 @@
+/*
+ * QEMU PowerPC XIVE2 interrupt controller model (POWER10)
+ *
+ * Copyright (c) 2019-2021, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qapi/error.h"
+#include "target/ppc/cpu.h"
+#include "sysemu/cpus.h"
+#include "sysemu/dma.h"
+#include "monitor/monitor.h"
+#include "hw/ppc/fdt.h"
+#include "hw/ppc/pnv.h"
+#include "hw/ppc/pnv_core.h"
+#include "hw/ppc/pnv_xscom.h"
+#include "hw/ppc/xive2.h"
+#include "hw/ppc/pnv_xive.h"
+#include "hw/ppc/xive_regs.h"
+#include "hw/ppc/xive2_regs.h"
+#include "hw/ppc/ppc.h"
+#include "hw/qdev-properties.h"
+#include "sysemu/reset.h"
+
+#include <libfdt.h>
+
+#include "pnv_xive2_regs.h"
+
+#undef XIVE2_DEBUG
+
+/*
+ * Virtual structures table (VST)
+ */
+#define SBE_PER_BYTE 4
+
+typedef struct XiveVstInfo {
+ const char *name;
+ uint32_t size;
+ uint32_t max_blocks;
+} XiveVstInfo;
+
+static const XiveVstInfo vst_infos[] = {
+
+ [VST_EAS] = { "EAT", sizeof(Xive2Eas), 16 },
+ [VST_ESB] = { "ESB", 1, 16 },
+ [VST_END] = { "ENDT", sizeof(Xive2End), 16 },
+
+ [VST_NVP] = { "NVPT", sizeof(Xive2Nvp), 16 },
+ [VST_NVG] = { "NVGT", sizeof(Xive2Nvgc), 16 },
+ [VST_NVC] = { "NVCT", sizeof(Xive2Nvgc), 16 },
+
+ [VST_IC] = { "IC", 1 /* ? */ , 16 }, /* Topology # */
+ [VST_SYNC] = { "SYNC", 1 /* ? */ , 16 }, /* Topology # */
+
+ /*
+ * This table contains the backing store pages for the interrupt
+ * fifos of the VC sub-engine in case of overflow.
+ *
+ * 0 - IPI,
+ * 1 - HWD,
+ * 2 - NxC,
+ * 3 - INT,
+ * 4 - OS-Queue,
+ * 5 - Pool-Queue,
+ * 6 - Hard-Queue
+ */
+ [VST_ERQ] = { "ERQ", 1, VC_QUEUE_COUNT },
+};
+
+#define xive2_error(xive, fmt, ...) \
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE[%x] - " fmt "\n", \
+ (xive)->chip->chip_id, ## __VA_ARGS__);
+
+/*
+ * QEMU version of the GETFIELD/SETFIELD macros
+ *
+ * TODO: It might be better to use the existing extract64() and
+ * deposit64() but this means that all the register definitions will
+ * change and become incompatible with the ones found in skiboot.
+ *
+ * Keep it as it is for now until we find a common ground.
+ */
+static inline uint64_t GETFIELD(uint64_t mask, uint64_t word)
+{
+ return (word & mask) >> ctz64(mask);
+}
+
+static inline uint64_t SETFIELD(uint64_t mask, uint64_t word,
+ uint64_t value)
+{
+ return (word & ~mask) | ((value << ctz64(mask)) & mask);
+}
+
+/*
+ * TODO: Document block id override
+ */
+static uint32_t pnv_xive2_block_id(PnvXive2 *xive)
+{
+ uint8_t blk = xive->chip->chip_id;
+ uint64_t cfg_val = xive->cq_regs[CQ_XIVE_CFG >> 3];
+
+ if (cfg_val & CQ_XIVE_CFG_HYP_HARD_BLKID_OVERRIDE) {
+ blk = GETFIELD(CQ_XIVE_CFG_HYP_HARD_BLOCK_ID, cfg_val);
+ }
+
+ return blk;
+}
+
+/*
+ * Remote access to controllers. HW uses MMIOs. For now, a simple scan
+ * of the chips is good enough.
+ *
+ * TODO: Block scope support
+ */
+static PnvXive2 *pnv_xive2_get_remote(uint8_t blk)
+{
+ PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
+ int i;
+
+ for (i = 0; i < pnv->num_chips; i++) {
+ Pnv10Chip *chip10 = PNV10_CHIP(pnv->chips[i]);
+ PnvXive2 *xive = &chip10->xive;
+
+ if (pnv_xive2_block_id(xive) == blk) {
+ return xive;
+ }
+ }
+ return NULL;
+}
+
+/*
+ * VST accessors for ESB, EAT, ENDT, NVP
+ *
+ * Indirect VST tables are arrays of VSDs pointing to a page (of same
+ * size). Each page is a direct VST table.
+ */
+
+#define XIVE_VSD_SIZE 8
+
+/* Indirect page size can be 4K, 64K, 2M, 16M. */
+static uint64_t pnv_xive2_vst_page_size_allowed(uint32_t page_shift)
+{
+ return page_shift == 12 || page_shift == 16 ||
+ page_shift == 21 || page_shift == 24;
+}
+
+static uint64_t pnv_xive2_vst_addr_direct(PnvXive2 *xive, uint32_t type,
+ uint64_t vsd, uint32_t idx)
+{
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t vst_addr = vsd & VSD_ADDRESS_MASK;
+ uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12);
+ uint32_t idx_max;
+
+ idx_max = vst_tsize / info->size - 1;
+ if (idx > idx_max) {
+#ifdef XIVE2_DEBUG
+ xive2_error(xive, "VST: %s entry %x out of range [ 0 .. %x ] !?",
+ info->name, idx, idx_max);
+#endif
+ return 0;
+ }
+
+ return vst_addr + idx * info->size;
+}
+
+static uint64_t pnv_xive2_vst_addr_indirect(PnvXive2 *xive, uint32_t type,
+ uint64_t vsd, uint32_t idx)
+{
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t vsd_addr;
+ uint32_t vsd_idx;
+ uint32_t page_shift;
+ uint32_t vst_per_page;
+
+ /* Get the page size of the indirect table. */
+ vsd_addr = vsd & VSD_ADDRESS_MASK;
+ vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+
+ if (!(vsd & VSD_ADDRESS_MASK)) {
+ xive2_error(xive, "VST: invalid %s entry %x !?", info->name, idx);
+ return 0;
+ }
+
+ page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
+
+ if (!pnv_xive2_vst_page_size_allowed(page_shift)) {
+ xive2_error(xive, "VST: invalid %s page shift %d", info->name,
+ page_shift);
+ return 0;
+ }
+
+ vst_per_page = (1ull << page_shift) / info->size;
+ vsd_idx = idx / vst_per_page;
+
+ /* Load the VSD we are looking for, if not already done */
+ if (vsd_idx) {
+ vsd_addr = vsd_addr + vsd_idx * XIVE_VSD_SIZE;
+ vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+
+ if (!(vsd & VSD_ADDRESS_MASK)) {
+ xive2_error(xive, "VST: invalid %s entry %x !?", info->name, idx);
+ return 0;
+ }
+
+ /*
+ * Check that the pages have a consistent size across the
+ * indirect table
+ */
+ if (page_shift != GETFIELD(VSD_TSIZE, vsd) + 12) {
+ xive2_error(xive, "VST: %s entry %x indirect page size differ !?",
+ info->name, idx);
+ return 0;
+ }
+ }
+
+ return pnv_xive2_vst_addr_direct(xive, type, vsd, (idx % vst_per_page));
+}
+
+static uint64_t pnv_xive2_vst_addr(PnvXive2 *xive, uint32_t type, uint8_t blk,
+ uint32_t idx)
+{
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t vsd;
+
+ if (blk >= info->max_blocks) {
+ xive2_error(xive, "VST: invalid block id %d for VST %s %d !?",
+ blk, info->name, idx);
+ return 0;
+ }
+
+ vsd = xive->vsds[type][blk];
+
+ /* Remote VST access */
+ if (GETFIELD(VSD_MODE, vsd) == VSD_MODE_FORWARD) {
+ xive = pnv_xive2_get_remote(blk);
+
+ return xive ? pnv_xive2_vst_addr(xive, type, blk, idx) : 0;
+ }
+
+ if (VSD_INDIRECT & vsd) {
+ return pnv_xive2_vst_addr_indirect(xive, type, vsd, idx);
+ }
+
+ return pnv_xive2_vst_addr_direct(xive, type, vsd, idx);
+}
+
+static int pnv_xive2_vst_read(PnvXive2 *xive, uint32_t type, uint8_t blk,
+ uint32_t idx, void *data)
+{
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t addr = pnv_xive2_vst_addr(xive, type, blk, idx);
+
+ if (!addr) {
+ return -1;
+ }
+
+ cpu_physical_memory_read(addr, data, info->size);
+ return 0;
+}
+
+#define XIVE_VST_WORD_ALL -1
+
+static int pnv_xive2_vst_write(PnvXive2 *xive, uint32_t type, uint8_t blk,
+ uint32_t idx, void *data, uint32_t word_number)
+{
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t addr = pnv_xive2_vst_addr(xive, type, blk, idx);
+
+ if (!addr) {
+ return -1;
+ }
+
+ if (word_number == XIVE_VST_WORD_ALL) {
+ cpu_physical_memory_write(addr, data, info->size);
+ } else {
+ cpu_physical_memory_write(addr + word_number * 4,
+ data + word_number * 4, 4);
+ }
+ return 0;
+}
+
+static int pnv_xive2_get_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ Xive2End *end)
+{
+ return pnv_xive2_vst_read(PNV_XIVE2(xrtr), VST_END, blk, idx, end);
+}
+
+static int pnv_xive2_write_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ Xive2End *end, uint8_t word_number)
+{
+ return pnv_xive2_vst_write(PNV_XIVE2(xrtr), VST_END, blk, idx, end,
+ word_number);
+}
+
+static int pnv_xive2_end_update(PnvXive2 *xive)
+{
+ uint8_t blk = GETFIELD(VC_ENDC_WATCH_BLOCK_ID,
+ xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]);
+ uint32_t idx = GETFIELD(VC_ENDC_WATCH_INDEX,
+ xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]);
+ int i;
+ uint64_t endc_watch[4];
+
+ for (i = 0; i < ARRAY_SIZE(endc_watch); i++) {
+ endc_watch[i] =
+ cpu_to_be64(xive->vc_regs[(VC_ENDC_WATCH0_DATA0 >> 3) + i]);
+ }
+
+ return pnv_xive2_vst_write(xive, VST_END, blk, idx, endc_watch,
+ XIVE_VST_WORD_ALL);
+}
+
+static void pnv_xive2_end_cache_load(PnvXive2 *xive)
+{
+ uint8_t blk = GETFIELD(VC_ENDC_WATCH_BLOCK_ID,
+ xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]);
+ uint32_t idx = GETFIELD(VC_ENDC_WATCH_INDEX,
+ xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]);
+ uint64_t endc_watch[4] = { 0 };
+ int i;
+
+ if (pnv_xive2_vst_read(xive, VST_END, blk, idx, endc_watch)) {
+ xive2_error(xive, "VST: no END entry %x/%x !?", blk, idx);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(endc_watch); i++) {
+ xive->vc_regs[(VC_ENDC_WATCH0_DATA0 >> 3) + i] =
+ be64_to_cpu(endc_watch[i]);
+ }
+}
+
+static int pnv_xive2_get_nvp(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ Xive2Nvp *nvp)
+{
+ return pnv_xive2_vst_read(PNV_XIVE2(xrtr), VST_NVP, blk, idx, nvp);
+}
+
+static int pnv_xive2_write_nvp(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ Xive2Nvp *nvp, uint8_t word_number)
+{
+ return pnv_xive2_vst_write(PNV_XIVE2(xrtr), VST_NVP, blk, idx, nvp,
+ word_number);
+}
+
+static int pnv_xive2_nvp_update(PnvXive2 *xive)
+{
+ uint8_t blk = GETFIELD(PC_NXC_WATCH_BLOCK_ID,
+ xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]);
+ uint32_t idx = GETFIELD(PC_NXC_WATCH_INDEX,
+ xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]);
+ int i;
+ uint64_t nxc_watch[4];
+
+ for (i = 0; i < ARRAY_SIZE(nxc_watch); i++) {
+ nxc_watch[i] =
+ cpu_to_be64(xive->pc_regs[(PC_NXC_WATCH0_DATA0 >> 3) + i]);
+ }
+
+ return pnv_xive2_vst_write(xive, VST_NVP, blk, idx, nxc_watch,
+ XIVE_VST_WORD_ALL);
+}
+
+static void pnv_xive2_nvp_cache_load(PnvXive2 *xive)
+{
+ uint8_t blk = GETFIELD(PC_NXC_WATCH_BLOCK_ID,
+ xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]);
+ uint32_t idx = GETFIELD(PC_NXC_WATCH_INDEX,
+ xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]);
+ uint64_t nxc_watch[4] = { 0 };
+ int i;
+
+ if (pnv_xive2_vst_read(xive, VST_NVP, blk, idx, nxc_watch)) {
+ xive2_error(xive, "VST: no NVP entry %x/%x !?", blk, idx);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(nxc_watch); i++) {
+ xive->pc_regs[(PC_NXC_WATCH0_DATA0 >> 3) + i] =
+ be64_to_cpu(nxc_watch[i]);
+ }
+}
+
+static int pnv_xive2_get_eas(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ Xive2Eas *eas)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+
+ if (pnv_xive2_block_id(xive) != blk) {
+ xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ return pnv_xive2_vst_read(xive, VST_EAS, blk, idx, eas);
+}
+
+static bool pnv_xive2_is_cpu_enabled(PnvXive2 *xive, PowerPCCPU *cpu)
+{
+ int pir = ppc_cpu_pir(cpu);
+ uint32_t fc = PNV10_PIR2FUSEDCORE(pir);
+ uint64_t reg = fc < 8 ? TCTXT_EN0 : TCTXT_EN1;
+ uint32_t bit = pir & 0x3f;
+
+ return xive->tctxt_regs[reg >> 3] & PPC_BIT(bit);
+}
+
+static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint8_t priority,
+ uint32_t logic_serv, XiveTCTXMatch *match)
+{
+ PnvXive2 *xive = PNV_XIVE2(xptr);
+ PnvChip *chip = xive->chip;
+ int count = 0;
+ int i, j;
+
+ for (i = 0; i < chip->nr_cores; i++) {
+ PnvCore *pc = chip->cores[i];
+ CPUCore *cc = CPU_CORE(pc);
+
+ for (j = 0; j < cc->nr_threads; j++) {
+ PowerPCCPU *cpu = pc->threads[j];
+ XiveTCTX *tctx;
+ int ring;
+
+ if (!pnv_xive2_is_cpu_enabled(xive, cpu)) {
+ continue;
+ }
+
+ tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+ ring = xive2_presenter_tctx_match(xptr, tctx, format, nvt_blk,
+ nvt_idx, cam_ignore,
+ logic_serv);
+
+ /*
+ * Save the context and follow on to catch duplicates,
+ * that we don't support yet.
+ */
+ if (ring != -1) {
+ if (match->tctx) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a "
+ "thread context NVT %x/%x\n",
+ nvt_blk, nvt_idx);
+ return false;
+ }
+
+ match->ring = ring;
+ match->tctx = tctx;
+ count++;
+ }
+ }
+ }
+
+ return count;
+}
+
+static uint8_t pnv_xive2_get_block_id(Xive2Router *xrtr)
+{
+ return pnv_xive2_block_id(PNV_XIVE2(xrtr));
+}
+
+/*
+ * The TIMA MMIO space is shared among the chips and to identify the
+ * chip from which the access is being done, we extract the chip id
+ * from the PIR.
+ */
+static PnvXive2 *pnv_xive2_tm_get_xive(PowerPCCPU *cpu)
+{
+ int pir = ppc_cpu_pir(cpu);
+ XivePresenter *xptr = XIVE_TCTX(pnv_cpu_state(cpu)->intc)->xptr;
+ PnvXive2 *xive = PNV_XIVE2(xptr);
+
+ if (!pnv_xive2_is_cpu_enabled(xive, cpu)) {
+ xive2_error(xive, "IC: CPU %x is not enabled", pir);
+ }
+ return xive;
+}
+
+/*
+ * The internal sources of the interrupt controller have no knowledge
+ * of the XIVE2 chip on which they reside. Encode the block id in the
+ * source interrupt number before forwarding the source event
+ * notification to the Router. This is required on a multichip system.
+ */
+static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno)
+{
+ PnvXive2 *xive = PNV_XIVE2(xn);
+ uint8_t blk = pnv_xive2_block_id(xive);
+
+ xive2_router_notify(xn, XIVE_EAS(blk, srcno));
+}
+
+/*
+ * Set Translation Tables
+ *
+ * TODO add support for multiple sets
+ */
+static int pnv_xive2_stt_set_data(PnvXive2 *xive, uint64_t val)
+{
+ uint8_t tsel = GETFIELD(CQ_TAR_SELECT, xive->cq_regs[CQ_TAR >> 3]);
+ uint8_t entry = GETFIELD(CQ_TAR_ENTRY_SELECT,
+ xive->cq_regs[CQ_TAR >> 3]);
+
+ switch (tsel) {
+ case CQ_TAR_NVPG:
+ case CQ_TAR_ESB:
+ case CQ_TAR_END:
+ xive->tables[tsel][entry] = val;
+ break;
+ default:
+ xive2_error(xive, "IC: unsupported table %d", tsel);
+ return -1;
+ }
+
+ if (xive->cq_regs[CQ_TAR >> 3] & CQ_TAR_AUTOINC) {
+ xive->cq_regs[CQ_TAR >> 3] = SETFIELD(CQ_TAR_ENTRY_SELECT,
+ xive->cq_regs[CQ_TAR >> 3], ++entry);
+ }
+
+ return 0;
+}
+/*
+ * Virtual Structure Tables (VST) configuration
+ */
+static void pnv_xive2_vst_set_exclusive(PnvXive2 *xive, uint8_t type,
+ uint8_t blk, uint64_t vsd)
+{
+ Xive2EndSource *end_xsrc = &xive->end_source;
+ XiveSource *xsrc = &xive->ipi_source;
+ const XiveVstInfo *info = &vst_infos[type];
+ uint32_t page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
+ uint64_t vst_tsize = 1ull << page_shift;
+ uint64_t vst_addr = vsd & VSD_ADDRESS_MASK;
+
+ /* Basic checks */
+
+ if (VSD_INDIRECT & vsd) {
+ if (!pnv_xive2_vst_page_size_allowed(page_shift)) {
+ xive2_error(xive, "VST: invalid %s page shift %d", info->name,
+ page_shift);
+ return;
+ }
+ }
+
+ if (!QEMU_IS_ALIGNED(vst_addr, 1ull << page_shift)) {
+ xive2_error(xive, "VST: %s table address 0x%"PRIx64
+ " is not aligned with page shift %d",
+ info->name, vst_addr, page_shift);
+ return;
+ }
+
+ /* Record the table configuration (in SRAM on HW) */
+ xive->vsds[type][blk] = vsd;
+
+ /* Now tune the models with the configuration provided by the FW */
+
+ switch (type) {
+ case VST_ESB:
+ /*
+ * Backing store pages for the source PQ bits. The model does
+ * not use these PQ bits backed in RAM because the XiveSource
+ * model has its own.
+ *
+ * If the table is direct, we can compute the number of PQ
+ * entries provisioned by FW (such as skiboot) and resize the
+ * ESB window accordingly.
+ */
+ if (!(VSD_INDIRECT & vsd)) {
+ memory_region_set_size(&xsrc->esb_mmio, vst_tsize * SBE_PER_BYTE
+ * (1ull << xsrc->esb_shift));
+ }
+
+ memory_region_add_subregion(&xive->esb_mmio, 0, &xsrc->esb_mmio);
+ break;
+
+ case VST_EAS: /* Nothing to be done */
+ break;
+
+ case VST_END:
+ /*
+ * Backing store pages for the END.
+ */
+ if (!(VSD_INDIRECT & vsd)) {
+ memory_region_set_size(&end_xsrc->esb_mmio, (vst_tsize / info->size)
+ * (1ull << end_xsrc->esb_shift));
+ }
+ memory_region_add_subregion(&xive->end_mmio, 0, &end_xsrc->esb_mmio);
+ break;
+
+ case VST_NVP: /* Not modeled */
+ case VST_NVG: /* Not modeled */
+ case VST_NVC: /* Not modeled */
+ case VST_IC: /* Not modeled */
+ case VST_SYNC: /* Not modeled */
+ case VST_ERQ: /* Not modeled */
+ break;
+
+ default:
+ g_assert_not_reached();
+ }
+}
+
+/*
+ * Both PC and VC sub-engines are configured as each use the Virtual
+ * Structure Tables
+ */
+static void pnv_xive2_vst_set_data(PnvXive2 *xive, uint64_t vsd)
+{
+ uint8_t mode = GETFIELD(VSD_MODE, vsd);
+ uint8_t type = GETFIELD(VC_VSD_TABLE_SELECT,
+ xive->vc_regs[VC_VSD_TABLE_ADDR >> 3]);
+ uint8_t blk = GETFIELD(VC_VSD_TABLE_ADDRESS,
+ xive->vc_regs[VC_VSD_TABLE_ADDR >> 3]);
+ uint64_t vst_addr = vsd & VSD_ADDRESS_MASK;
+
+ if (type > VST_ERQ) {
+ xive2_error(xive, "VST: invalid table type %d", type);
+ return;
+ }
+
+ if (blk >= vst_infos[type].max_blocks) {
+ xive2_error(xive, "VST: invalid block id %d for"
+ " %s table", blk, vst_infos[type].name);
+ return;
+ }
+
+ if (!vst_addr) {
+ xive2_error(xive, "VST: invalid %s table address",
+ vst_infos[type].name);
+ return;
+ }
+
+ switch (mode) {
+ case VSD_MODE_FORWARD:
+ xive->vsds[type][blk] = vsd;
+ break;
+
+ case VSD_MODE_EXCLUSIVE:
+ pnv_xive2_vst_set_exclusive(xive, type, blk, vsd);
+ break;
+
+ default:
+ xive2_error(xive, "VST: unsupported table mode %d", mode);
+ return;
+ }
+}
+
+/*
+ * MMIO handlers
+ */
+
+
+/*
+ * IC BAR layout
+ *
+ * Page 0: Internal CQ register accesses (reads & writes)
+ * Page 1: Internal PC register accesses (reads & writes)
+ * Page 2: Internal VC register accesses (reads & writes)
+ * Page 3: Internal TCTXT (TIMA) reg accesses (read & writes)
+ * Page 4: Notify Port page (writes only, w/data),
+ * Page 5: Reserved
+ * Page 6: Sync Poll page (writes only, dataless)
+ * Page 7: Sync Inject page (writes only, dataless)
+ * Page 8: LSI Trigger page (writes only, dataless)
+ * Page 9: LSI SB Management page (reads & writes dataless)
+ * Pages 10-255: Reserved
+ * Pages 256-383: Direct mapped Thread Context Area (reads & writes)
+ * covering the 128 threads in P10.
+ * Pages 384-511: Reserved
+ */
+typedef struct PnvXive2Region {
+ const char *name;
+ uint32_t pgoff;
+ uint32_t pgsize;
+ const MemoryRegionOps *ops;
+} PnvXive2Region;
+
+static const MemoryRegionOps pnv_xive2_ic_cq_ops;
+static const MemoryRegionOps pnv_xive2_ic_pc_ops;
+static const MemoryRegionOps pnv_xive2_ic_vc_ops;
+static const MemoryRegionOps pnv_xive2_ic_tctxt_ops;
+static const MemoryRegionOps pnv_xive2_ic_notify_ops;
+static const MemoryRegionOps pnv_xive2_ic_sync_ops;
+static const MemoryRegionOps pnv_xive2_ic_lsi_ops;
+static const MemoryRegionOps pnv_xive2_ic_tm_indirect_ops;
+
+/* 512 pages. 4K: 2M range, 64K: 32M range */
+static const PnvXive2Region pnv_xive2_ic_regions[] = {
+ { "xive-ic-cq", 0, 1, &pnv_xive2_ic_cq_ops },
+ { "xive-ic-vc", 1, 1, &pnv_xive2_ic_vc_ops },
+ { "xive-ic-pc", 2, 1, &pnv_xive2_ic_pc_ops },
+ { "xive-ic-tctxt", 3, 1, &pnv_xive2_ic_tctxt_ops },
+ { "xive-ic-notify", 4, 1, &pnv_xive2_ic_notify_ops },
+ /* page 5 reserved */
+ { "xive-ic-sync", 6, 2, &pnv_xive2_ic_sync_ops },
+ { "xive-ic-lsi", 8, 2, &pnv_xive2_ic_lsi_ops },
+ /* pages 10-255 reserved */
+ { "xive-ic-tm-indirect", 256, 128, &pnv_xive2_ic_tm_indirect_ops },
+ /* pages 384-511 reserved */
+};
+
+/*
+ * CQ operations
+ */
+
+static uint64_t pnv_xive2_ic_cq_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t reg = offset >> 3;
+ uint64_t val = 0;
+
+ switch (offset) {
+ case CQ_XIVE_CAP: /* Set at reset */
+ case CQ_XIVE_CFG:
+ val = xive->cq_regs[reg];
+ break;
+ case CQ_MSGSND: /* TODO check the #cores of the machine */
+ val = 0xffffffff00000000;
+ break;
+ case CQ_CFG_PB_GEN:
+ val = CQ_CFG_PB_GEN_PB_INIT; /* TODO: fix CQ_CFG_PB_GEN default value */
+ break;
+ default:
+ xive2_error(xive, "CQ: invalid read @%"HWADDR_PRIx, offset);
+ }
+
+ return val;
+}
+
+static uint64_t pnv_xive2_bar_size(uint64_t val)
+{
+ return 1ull << (GETFIELD(CQ_BAR_RANGE, val) + 24);
+}
+
+static void pnv_xive2_ic_cq_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ MemoryRegion *sysmem = get_system_memory();
+ uint32_t reg = offset >> 3;
+ int i;
+
+ switch (offset) {
+ case CQ_XIVE_CFG:
+ case CQ_RST_CTL: /* TODO: reset all BARs */
+ break;
+
+ case CQ_IC_BAR:
+ xive->ic_shift = val & CQ_IC_BAR_64K ? 16 : 12;
+ if (!(val & CQ_IC_BAR_VALID)) {
+ xive->ic_base = 0;
+ if (xive->cq_regs[reg] & CQ_IC_BAR_VALID) {
+ for (i = 0; i < ARRAY_SIZE(xive->ic_mmios); i++) {
+ memory_region_del_subregion(&xive->ic_mmio,
+ &xive->ic_mmios[i]);
+ }
+ memory_region_del_subregion(sysmem, &xive->ic_mmio);
+ }
+ } else {
+ xive->ic_base = val & ~(CQ_IC_BAR_VALID | CQ_IC_BAR_64K);
+ if (!(xive->cq_regs[reg] & CQ_IC_BAR_VALID)) {
+ for (i = 0; i < ARRAY_SIZE(xive->ic_mmios); i++) {
+ memory_region_add_subregion(&xive->ic_mmio,
+ pnv_xive2_ic_regions[i].pgoff << xive->ic_shift,
+ &xive->ic_mmios[i]);
+ }
+ memory_region_add_subregion(sysmem, xive->ic_base,
+ &xive->ic_mmio);
+ }
+ }
+ break;
+
+ case CQ_TM_BAR:
+ xive->tm_shift = val & CQ_TM_BAR_64K ? 16 : 12;
+ if (!(val & CQ_TM_BAR_VALID)) {
+ xive->tm_base = 0;
+ if (xive->cq_regs[reg] & CQ_TM_BAR_VALID) {
+ memory_region_del_subregion(sysmem, &xive->tm_mmio);
+ }
+ } else {
+ xive->tm_base = val & ~(CQ_TM_BAR_VALID | CQ_TM_BAR_64K);
+ if (!(xive->cq_regs[reg] & CQ_TM_BAR_VALID)) {
+ memory_region_add_subregion(sysmem, xive->tm_base,
+ &xive->tm_mmio);
+ }
+ }
+ break;
+
+ case CQ_ESB_BAR:
+ xive->esb_shift = val & CQ_BAR_64K ? 16 : 12;
+ if (!(val & CQ_BAR_VALID)) {
+ xive->esb_base = 0;
+ if (xive->cq_regs[reg] & CQ_BAR_VALID) {
+ memory_region_del_subregion(sysmem, &xive->esb_mmio);
+ }
+ } else {
+ xive->esb_base = val & CQ_BAR_ADDR;
+ if (!(xive->cq_regs[reg] & CQ_BAR_VALID)) {
+ memory_region_set_size(&xive->esb_mmio,
+ pnv_xive2_bar_size(val));
+ memory_region_add_subregion(sysmem, xive->esb_base,
+ &xive->esb_mmio);
+ }
+ }
+ break;
+
+ case CQ_END_BAR:
+ xive->end_shift = val & CQ_BAR_64K ? 16 : 12;
+ if (!(val & CQ_BAR_VALID)) {
+ xive->end_base = 0;
+ if (xive->cq_regs[reg] & CQ_BAR_VALID) {
+ memory_region_del_subregion(sysmem, &xive->end_mmio);
+ }
+ } else {
+ xive->end_base = val & CQ_BAR_ADDR;
+ if (!(xive->cq_regs[reg] & CQ_BAR_VALID)) {
+ memory_region_set_size(&xive->end_mmio,
+ pnv_xive2_bar_size(val));
+ memory_region_add_subregion(sysmem, xive->end_base,
+ &xive->end_mmio);
+ }
+ }
+ break;
+
+ case CQ_NVC_BAR:
+ xive->nvc_shift = val & CQ_BAR_64K ? 16 : 12;
+ if (!(val & CQ_BAR_VALID)) {
+ xive->nvc_base = 0;
+ if (xive->cq_regs[reg] & CQ_BAR_VALID) {
+ memory_region_del_subregion(sysmem, &xive->nvc_mmio);
+ }
+ } else {
+ xive->nvc_base = val & CQ_BAR_ADDR;
+ if (!(xive->cq_regs[reg] & CQ_BAR_VALID)) {
+ memory_region_set_size(&xive->nvc_mmio,
+ pnv_xive2_bar_size(val));
+ memory_region_add_subregion(sysmem, xive->nvc_base,
+ &xive->nvc_mmio);
+ }
+ }
+ break;
+
+ case CQ_NVPG_BAR:
+ xive->nvpg_shift = val & CQ_BAR_64K ? 16 : 12;
+ if (!(val & CQ_BAR_VALID)) {
+ xive->nvpg_base = 0;
+ if (xive->cq_regs[reg] & CQ_BAR_VALID) {
+ memory_region_del_subregion(sysmem, &xive->nvpg_mmio);
+ }
+ } else {
+ xive->nvpg_base = val & CQ_BAR_ADDR;
+ if (!(xive->cq_regs[reg] & CQ_BAR_VALID)) {
+ memory_region_set_size(&xive->nvpg_mmio,
+ pnv_xive2_bar_size(val));
+ memory_region_add_subregion(sysmem, xive->nvpg_base,
+ &xive->nvpg_mmio);
+ }
+ }
+ break;
+
+ case CQ_TAR: /* Set Translation Table Address */
+ break;
+ case CQ_TDR: /* Set Translation Table Data */
+ pnv_xive2_stt_set_data(xive, val);
+ break;
+ case CQ_FIRMASK_OR: /* FIR error reporting */
+ break;
+ default:
+ xive2_error(xive, "CQ: invalid write 0x%"HWADDR_PRIx, offset);
+ return;
+ }
+
+ xive->cq_regs[reg] = val;
+}
+
+static const MemoryRegionOps pnv_xive2_ic_cq_ops = {
+ .read = pnv_xive2_ic_cq_read,
+ .write = pnv_xive2_ic_cq_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_xive2_ic_vc_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint64_t val = 0;
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+ /*
+ * VSD table settings.
+ */
+ case VC_VSD_TABLE_ADDR:
+ case VC_VSD_TABLE_DATA:
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * ESB cache updates (not modeled)
+ */
+ case VC_ESBC_FLUSH_CTRL:
+ xive->vc_regs[reg] &= ~VC_ESBC_FLUSH_CTRL_POLL_VALID;
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * EAS cache updates (not modeled)
+ */
+ case VC_EASC_FLUSH_CTRL:
+ xive->vc_regs[reg] &= ~VC_EASC_FLUSH_CTRL_POLL_VALID;
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * END cache updates
+ */
+ case VC_ENDC_WATCH0_SPEC:
+ xive->vc_regs[reg] &= ~(VC_ENDC_WATCH_FULL | VC_ENDC_WATCH_CONFLICT);
+ val = xive->vc_regs[reg];
+ break;
+
+ case VC_ENDC_WATCH0_DATA0:
+ /*
+ * Load DATA registers from cache with data requested by the
+ * SPEC register
+ */
+ pnv_xive2_end_cache_load(xive);
+ val = xive->vc_regs[reg];
+ break;
+
+ case VC_ENDC_WATCH0_DATA1 ... VC_ENDC_WATCH0_DATA3:
+ val = xive->vc_regs[reg];
+ break;
+
+ case VC_ENDC_FLUSH_CTRL:
+ xive->vc_regs[reg] &= ~VC_ENDC_FLUSH_CTRL_POLL_VALID;
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * Indirect invalidation
+ */
+ case VC_AT_MACRO_KILL_MASK:
+ val = xive->vc_regs[reg];
+ break;
+
+ case VC_AT_MACRO_KILL:
+ xive->vc_regs[reg] &= ~VC_AT_MACRO_KILL_VALID;
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * Interrupt fifo overflow in memory backing store (Not modeled)
+ */
+ case VC_QUEUES_CFG_REM0 ... VC_QUEUES_CFG_REM6:
+ val = xive->vc_regs[reg];
+ break;
+
+ /*
+ * Synchronisation
+ */
+ case VC_ENDC_SYNC_DONE:
+ val = VC_ENDC_SYNC_POLL_DONE;
+ break;
+ default:
+ xive2_error(xive, "VC: invalid read @%"HWADDR_PRIx, offset);
+ }
+
+ return val;
+}
+
+static void pnv_xive2_ic_vc_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+ /*
+ * VSD table settings.
+ */
+ case VC_VSD_TABLE_ADDR:
+ break;
+ case VC_VSD_TABLE_DATA:
+ pnv_xive2_vst_set_data(xive, val);
+ break;
+
+ /*
+ * ESB cache updates (not modeled)
+ */
+ /* case VC_ESBC_FLUSH_CTRL: */
+ case VC_ESBC_FLUSH_POLL:
+ xive->vc_regs[VC_ESBC_FLUSH_CTRL >> 3] |= VC_ESBC_FLUSH_CTRL_POLL_VALID;
+ /* ESB update */
+ break;
+
+ /*
+ * EAS cache updates (not modeled)
+ */
+ /* case VC_EASC_FLUSH_CTRL: */
+ case VC_EASC_FLUSH_POLL:
+ xive->vc_regs[VC_EASC_FLUSH_CTRL >> 3] |= VC_EASC_FLUSH_CTRL_POLL_VALID;
+ /* EAS update */
+ break;
+
+ /*
+ * END cache updates
+ */
+ case VC_ENDC_WATCH0_SPEC:
+ val &= ~VC_ENDC_WATCH_CONFLICT; /* HW will set this bit */
+ break;
+
+ case VC_ENDC_WATCH0_DATA1 ... VC_ENDC_WATCH0_DATA3:
+ break;
+ case VC_ENDC_WATCH0_DATA0:
+ /* writing to DATA0 triggers the cache write */
+ xive->vc_regs[reg] = val;
+ pnv_xive2_end_update(xive);
+ break;
+
+
+ /* case VC_ENDC_FLUSH_CTRL: */
+ case VC_ENDC_FLUSH_POLL:
+ xive->vc_regs[VC_ENDC_FLUSH_CTRL >> 3] |= VC_ENDC_FLUSH_CTRL_POLL_VALID;
+ break;
+
+ /*
+ * Indirect invalidation
+ */
+ case VC_AT_MACRO_KILL:
+ case VC_AT_MACRO_KILL_MASK:
+ break;
+
+ /*
+ * Interrupt fifo overflow in memory backing store (Not modeled)
+ */
+ case VC_QUEUES_CFG_REM0 ... VC_QUEUES_CFG_REM6:
+ break;
+
+ /*
+ * Synchronisation
+ */
+ case VC_ENDC_SYNC_DONE:
+ break;
+
+ default:
+ xive2_error(xive, "VC: invalid write @%"HWADDR_PRIx, offset);
+ return;
+ }
+
+ xive->vc_regs[reg] = val;
+}
+
+static const MemoryRegionOps pnv_xive2_ic_vc_ops = {
+ .read = pnv_xive2_ic_vc_read,
+ .write = pnv_xive2_ic_vc_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_xive2_ic_pc_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint64_t val = -1;
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+ /*
+ * VSD table settings.
+ */
+ case PC_VSD_TABLE_ADDR:
+ case PC_VSD_TABLE_DATA:
+ val = xive->pc_regs[reg];
+ break;
+
+ /*
+ * cache updates
+ */
+ case PC_NXC_WATCH0_SPEC:
+ xive->pc_regs[reg] &= ~(PC_NXC_WATCH_FULL | PC_NXC_WATCH_CONFLICT);
+ val = xive->pc_regs[reg];
+ break;
+
+ case PC_NXC_WATCH0_DATA0:
+ /*
+ * Load DATA registers from cache with data requested by the
+ * SPEC register
+ */
+ pnv_xive2_nvp_cache_load(xive);
+ val = xive->pc_regs[reg];
+ break;
+
+ case PC_NXC_WATCH0_DATA1 ... PC_NXC_WATCH0_DATA3:
+ val = xive->pc_regs[reg];
+ break;
+
+ case PC_NXC_FLUSH_CTRL:
+ xive->pc_regs[reg] &= ~PC_NXC_FLUSH_CTRL_POLL_VALID;
+ val = xive->pc_regs[reg];
+ break;
+
+ /*
+ * Indirect invalidation
+ */
+ case PC_AT_KILL:
+ xive->pc_regs[reg] &= ~PC_AT_KILL_VALID;
+ val = xive->pc_regs[reg];
+ break;
+
+ default:
+ xive2_error(xive, "PC: invalid read @%"HWADDR_PRIx, offset);
+ }
+
+ return val;
+}
+
+static void pnv_xive2_ic_pc_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+
+ /*
+ * VSD table settings. Only taken into account in the VC
+ * sub-engine because the Xive2Router model combines both VC and PC
+ * sub-engines
+ */
+ case PC_VSD_TABLE_ADDR:
+ case PC_VSD_TABLE_DATA:
+ break;
+
+ /*
+ * cache updates
+ */
+ case PC_NXC_WATCH0_SPEC:
+ val &= ~PC_NXC_WATCH_CONFLICT; /* HW will set this bit */
+ break;
+
+ case PC_NXC_WATCH0_DATA1 ... PC_NXC_WATCH0_DATA3:
+ break;
+ case PC_NXC_WATCH0_DATA0:
+ /* writing to DATA0 triggers the cache write */
+ xive->pc_regs[reg] = val;
+ pnv_xive2_nvp_update(xive);
+ break;
+
+ /* case PC_NXC_FLUSH_CTRL: */
+ case PC_NXC_FLUSH_POLL:
+ xive->pc_regs[PC_NXC_FLUSH_CTRL >> 3] |= PC_NXC_FLUSH_CTRL_POLL_VALID;
+ break;
+
+ /*
+ * Indirect invalidation
+ */
+ case PC_AT_KILL:
+ case PC_AT_KILL_MASK:
+ break;
+
+ default:
+ xive2_error(xive, "PC: invalid write @%"HWADDR_PRIx, offset);
+ return;
+ }
+
+ xive->pc_regs[reg] = val;
+}
+
+static const MemoryRegionOps pnv_xive2_ic_pc_ops = {
+ .read = pnv_xive2_ic_pc_read,
+ .write = pnv_xive2_ic_pc_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+
+static uint64_t pnv_xive2_ic_tctxt_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint64_t val = -1;
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+ /*
+ * XIVE2 hardware thread enablement
+ */
+ case TCTXT_EN0:
+ case TCTXT_EN1:
+ val = xive->tctxt_regs[reg];
+ break;
+
+ case TCTXT_EN0_SET:
+ case TCTXT_EN0_RESET:
+ val = xive->tctxt_regs[TCTXT_EN0 >> 3];
+ break;
+ case TCTXT_EN1_SET:
+ case TCTXT_EN1_RESET:
+ val = xive->tctxt_regs[TCTXT_EN1 >> 3];
+ break;
+ default:
+ xive2_error(xive, "TCTXT: invalid read @%"HWADDR_PRIx, offset);
+ }
+
+ return val;
+}
+
+static void pnv_xive2_ic_tctxt_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t reg = offset >> 3;
+
+ switch (offset) {
+ /*
+ * XIVE2 hardware thread enablement
+ */
+ case TCTXT_EN0: /* Physical Thread Enable */
+ case TCTXT_EN1: /* Physical Thread Enable (fused core) */
+ break;
+
+ case TCTXT_EN0_SET:
+ xive->tctxt_regs[TCTXT_EN0 >> 3] |= val;
+ break;
+ case TCTXT_EN1_SET:
+ xive->tctxt_regs[TCTXT_EN1 >> 3] |= val;
+ break;
+ case TCTXT_EN0_RESET:
+ xive->tctxt_regs[TCTXT_EN0 >> 3] &= ~val;
+ break;
+ case TCTXT_EN1_RESET:
+ xive->tctxt_regs[TCTXT_EN1 >> 3] &= ~val;
+ break;
+
+ default:
+ xive2_error(xive, "TCTXT: invalid write @%"HWADDR_PRIx, offset);
+ return;
+ }
+
+ xive->pc_regs[reg] = val;
+}
+
+static const MemoryRegionOps pnv_xive2_ic_tctxt_ops = {
+ .read = pnv_xive2_ic_tctxt_read,
+ .write = pnv_xive2_ic_tctxt_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * Redirect XSCOM to MMIO handlers
+ */
+static uint64_t pnv_xive2_xscom_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint64_t val = -1;
+ uint32_t xscom_reg = offset >> 3;
+ uint32_t mmio_offset = (xscom_reg & 0xFF) << 3;
+
+ switch (xscom_reg) {
+ case 0x000 ... 0x0FF:
+ val = pnv_xive2_ic_cq_read(opaque, mmio_offset, size);
+ break;
+ case 0x100 ... 0x1FF:
+ val = pnv_xive2_ic_vc_read(opaque, mmio_offset, size);
+ break;
+ case 0x200 ... 0x2FF:
+ val = pnv_xive2_ic_pc_read(opaque, mmio_offset, size);
+ break;
+ case 0x300 ... 0x3FF:
+ val = pnv_xive2_ic_tctxt_read(opaque, mmio_offset, size);
+ break;
+ default:
+ xive2_error(xive, "XSCOM: invalid read @%"HWADDR_PRIx, offset);
+ }
+
+ return val;
+}
+
+static void pnv_xive2_xscom_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t xscom_reg = offset >> 3;
+ uint32_t mmio_offset = (xscom_reg & 0xFF) << 3;
+
+ switch (xscom_reg) {
+ case 0x000 ... 0x0FF:
+ pnv_xive2_ic_cq_write(opaque, mmio_offset, val, size);
+ break;
+ case 0x100 ... 0x1FF:
+ pnv_xive2_ic_vc_write(opaque, mmio_offset, val, size);
+ break;
+ case 0x200 ... 0x2FF:
+ pnv_xive2_ic_pc_write(opaque, mmio_offset, val, size);
+ break;
+ case 0x300 ... 0x3FF:
+ pnv_xive2_ic_tctxt_write(opaque, mmio_offset, val, size);
+ break;
+ default:
+ xive2_error(xive, "XSCOM: invalid write @%"HWADDR_PRIx, offset);
+ }
+}
+
+static const MemoryRegionOps pnv_xive2_xscom_ops = {
+ .read = pnv_xive2_xscom_read,
+ .write = pnv_xive2_xscom_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * Notify port page. The layout is compatible between 4K and 64K pages :
+ *
+ * Page 1 Notify page (writes only)
+ * 0x000 - 0x7FF IPI interrupt (NPU)
+ * 0x800 - 0xFFF HW interrupt triggers (PSI, PHB)
+ */
+
+static void pnv_xive2_ic_hw_trigger(PnvXive2 *xive, hwaddr addr,
+ uint64_t val)
+{
+ uint8_t blk;
+ uint32_t idx;
+
+ if (val & XIVE_TRIGGER_END) {
+ xive2_error(xive, "IC: END trigger at @0x%"HWADDR_PRIx" data 0x%"PRIx64,
+ addr, val);
+ return;
+ }
+
+ /*
+ * Forward the source event notification directly to the Router.
+ * The source interrupt number should already be correctly encoded
+ * with the chip block id by the sending device (PHB, PSI).
+ */
+ blk = XIVE_EAS_BLOCK(val);
+ idx = XIVE_EAS_INDEX(val);
+
+ xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx));
+}
+
+static void pnv_xive2_ic_notify_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ /* VC: IPI triggers */
+ switch (offset) {
+ case 0x000 ... 0x7FF:
+ /* TODO: check IPI notify sub-page routing */
+ pnv_xive2_ic_hw_trigger(opaque, offset, val);
+ break;
+
+ /* VC: HW triggers */
+ case 0x800 ... 0xFFF:
+ pnv_xive2_ic_hw_trigger(opaque, offset, val);
+ break;
+
+ default:
+ xive2_error(xive, "NOTIFY: invalid write @%"HWADDR_PRIx, offset);
+ }
+}
+
+static uint64_t pnv_xive2_ic_notify_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ /* loads are invalid */
+ xive2_error(xive, "NOTIFY: invalid read @%"HWADDR_PRIx, offset);
+ return -1;
+}
+
+static const MemoryRegionOps pnv_xive2_ic_notify_ops = {
+ .read = pnv_xive2_ic_notify_read,
+ .write = pnv_xive2_ic_notify_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_xive2_ic_lsi_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "LSI: invalid read @%"HWADDR_PRIx, offset);
+ return -1;
+}
+
+static void pnv_xive2_ic_lsi_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "LSI: invalid write @%"HWADDR_PRIx, offset);
+}
+
+static const MemoryRegionOps pnv_xive2_ic_lsi_ops = {
+ .read = pnv_xive2_ic_lsi_read,
+ .write = pnv_xive2_ic_lsi_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * Sync MMIO page (write only)
+ */
+#define PNV_XIVE2_SYNC_IPI 0x000
+#define PNV_XIVE2_SYNC_HW 0x080
+#define PNV_XIVE2_SYNC_NxC 0x100
+#define PNV_XIVE2_SYNC_INT 0x180
+#define PNV_XIVE2_SYNC_OS_ESC 0x200
+#define PNV_XIVE2_SYNC_POOL_ESC 0x280
+#define PNV_XIVE2_SYNC_HARD_ESC 0x300
+
+static uint64_t pnv_xive2_ic_sync_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ /* loads are invalid */
+ xive2_error(xive, "SYNC: invalid read @%"HWADDR_PRIx, offset);
+ return -1;
+}
+
+static void pnv_xive2_ic_sync_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ switch (offset) {
+ case PNV_XIVE2_SYNC_IPI:
+ case PNV_XIVE2_SYNC_HW:
+ case PNV_XIVE2_SYNC_NxC:
+ case PNV_XIVE2_SYNC_INT:
+ case PNV_XIVE2_SYNC_OS_ESC:
+ case PNV_XIVE2_SYNC_POOL_ESC:
+ case PNV_XIVE2_SYNC_HARD_ESC:
+ break;
+ default:
+ xive2_error(xive, "SYNC: invalid write @%"HWADDR_PRIx, offset);
+ }
+}
+
+static const MemoryRegionOps pnv_xive2_ic_sync_ops = {
+ .read = pnv_xive2_ic_sync_read,
+ .write = pnv_xive2_ic_sync_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * When the TM direct pages of the IC controller are accessed, the
+ * target HW thread is deduced from the page offset.
+ */
+static XiveTCTX *pnv_xive2_get_indirect_tctx(PnvXive2 *xive, uint32_t pir)
+{
+ PnvChip *chip = xive->chip;
+ PowerPCCPU *cpu = NULL;
+
+ cpu = pnv_chip_find_cpu(chip, pir);
+ if (!cpu) {
+ xive2_error(xive, "IC: invalid PIR %x for indirect access", pir);
+ return NULL;
+ }
+
+ if (!pnv_xive2_is_cpu_enabled(xive, cpu)) {
+ xive2_error(xive, "IC: CPU %x is not enabled", pir);
+ }
+
+ return XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+}
+
+static uint64_t pnv_xive2_ic_tm_indirect_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t pir = offset >> xive->ic_shift;
+ XiveTCTX *tctx = pnv_xive2_get_indirect_tctx(xive, pir);
+ uint64_t val = -1;
+
+ if (tctx) {
+ val = xive_tctx_tm_read(NULL, tctx, offset, size);
+ }
+
+ return val;
+}
+
+static void pnv_xive2_ic_tm_indirect_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+ uint32_t pir = offset >> xive->ic_shift;
+ XiveTCTX *tctx = pnv_xive2_get_indirect_tctx(xive, pir);
+
+ if (tctx) {
+ xive_tctx_tm_write(NULL, tctx, offset, val, size);
+ }
+}
+
+static const MemoryRegionOps pnv_xive2_ic_tm_indirect_ops = {
+ .read = pnv_xive2_ic_tm_indirect_read,
+ .write = pnv_xive2_ic_tm_indirect_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * TIMA ops
+ */
+
+static void pnv_xive2_tm_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
+ PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
+ XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+ /* Other TM ops are the same as XIVE1 */
+ xive_tctx_tm_write(XIVE_PRESENTER(xive), tctx, offset, value, size);
+}
+
+static uint64_t pnv_xive2_tm_read(void *opaque, hwaddr offset, unsigned size)
+{
+ PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
+ PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
+ XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+
+ /* Other TM ops are the same as XIVE1 */
+ return xive_tctx_tm_read(XIVE_PRESENTER(xive), tctx, offset, size);
+}
+
+static const MemoryRegionOps pnv_xive2_tm_ops = {
+ .read = pnv_xive2_tm_read,
+ .write = pnv_xive2_tm_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_xive2_nvc_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "NVC: invalid read @%"HWADDR_PRIx, offset);
+ return -1;
+}
+
+static void pnv_xive2_nvc_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "NVC: invalid write @%"HWADDR_PRIx, offset);
+}
+
+static const MemoryRegionOps pnv_xive2_nvc_ops = {
+ .read = pnv_xive2_nvc_read,
+ .write = pnv_xive2_nvc_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_xive2_nvpg_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "NVPG: invalid read @%"HWADDR_PRIx, offset);
+ return -1;
+}
+
+static void pnv_xive2_nvpg_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ PnvXive2 *xive = PNV_XIVE2(opaque);
+
+ xive2_error(xive, "NVPG: invalid write @%"HWADDR_PRIx, offset);
+}
+
+static const MemoryRegionOps pnv_xive2_nvpg_ops = {
+ .read = pnv_xive2_nvpg_read,
+ .write = pnv_xive2_nvpg_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+/*
+ * POWER10 default capabilities: 0x2000120076f00000
+ */
+#define PNV_XIVE2_CAPABILITIES 0x2000120076f00000
+
+/*
+ * POWER10 default configuration: 0x0030000033000000
+ *
+ * 8bits thread id was dropped for P10
+ */
+#define PNV_XIVE2_CONFIGURATION 0x0030000033000000
+
+static void pnv_xive2_reset(void *dev)
+{
+ PnvXive2 *xive = PNV_XIVE2(dev);
+ XiveSource *xsrc = &xive->ipi_source;
+ Xive2EndSource *end_xsrc = &xive->end_source;
+
+ xive->cq_regs[CQ_XIVE_CAP >> 3] = xive->capabilities;
+ xive->cq_regs[CQ_XIVE_CFG >> 3] = xive->config;
+
+ /* HW hardwires the #Topology of the chip in the block field */
+ xive->cq_regs[CQ_XIVE_CFG >> 3] |=
+ SETFIELD(CQ_XIVE_CFG_HYP_HARD_BLOCK_ID, 0ull, xive->chip->chip_id);
+
+ /* Set default page size to 64k */
+ xive->ic_shift = xive->esb_shift = xive->end_shift = 16;
+ xive->nvc_shift = xive->nvpg_shift = xive->tm_shift = 16;
+
+ /* Clear source MMIOs */
+ if (memory_region_is_mapped(&xsrc->esb_mmio)) {
+ memory_region_del_subregion(&xive->esb_mmio, &xsrc->esb_mmio);
+ }
+
+ if (memory_region_is_mapped(&end_xsrc->esb_mmio)) {
+ memory_region_del_subregion(&xive->end_mmio, &end_xsrc->esb_mmio);
+ }
+}
+
+/*
+ * Maximum number of IRQs and ENDs supported by HW. Will be tuned by
+ * software.
+ */
+#define PNV_XIVE2_NR_IRQS (PNV10_XIVE2_ESB_SIZE / (1ull << XIVE_ESB_64K_2PAGE))
+#define PNV_XIVE2_NR_ENDS (PNV10_XIVE2_END_SIZE / (1ull << XIVE_ESB_64K_2PAGE))
+
+static void pnv_xive2_realize(DeviceState *dev, Error **errp)
+{
+ PnvXive2 *xive = PNV_XIVE2(dev);
+ PnvXive2Class *pxc = PNV_XIVE2_GET_CLASS(dev);
+ XiveSource *xsrc = &xive->ipi_source;
+ Xive2EndSource *end_xsrc = &xive->end_source;
+ Error *local_err = NULL;
+ int i;
+
+ pxc->parent_realize(dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ assert(xive->chip);
+
+ /*
+ * The XiveSource and Xive2EndSource objects are realized with the
+ * maximum allowed HW configuration. The ESB MMIO regions will be
+ * resized dynamically when the controller is configured by the FW
+ * to limit accesses to resources not provisioned.
+ */
+ object_property_set_int(OBJECT(xsrc), "flags", XIVE_SRC_STORE_EOI,
+ &error_fatal);
+ object_property_set_int(OBJECT(xsrc), "nr-irqs", PNV_XIVE2_NR_IRQS,
+ &error_fatal);
+ object_property_set_link(OBJECT(xsrc), "xive", OBJECT(xive),
+ &error_fatal);
+ qdev_realize(DEVICE(xsrc), NULL, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ object_property_set_int(OBJECT(end_xsrc), "nr-ends", PNV_XIVE2_NR_ENDS,
+ &error_fatal);
+ object_property_set_link(OBJECT(end_xsrc), "xive", OBJECT(xive),
+ &error_abort);
+ qdev_realize(DEVICE(end_xsrc), NULL, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* XSCOM region, used for initial configuration of the BARs */
+ memory_region_init_io(&xive->xscom_regs, OBJECT(dev),
+ &pnv_xive2_xscom_ops, xive, "xscom-xive",
+ PNV10_XSCOM_XIVE2_SIZE << 3);
+
+ /* Interrupt controller MMIO regions */
+ xive->ic_shift = 16;
+ memory_region_init(&xive->ic_mmio, OBJECT(dev), "xive-ic",
+ PNV10_XIVE2_IC_SIZE);
+
+ for (i = 0; i < ARRAY_SIZE(xive->ic_mmios); i++) {
+ memory_region_init_io(&xive->ic_mmios[i], OBJECT(dev),
+ pnv_xive2_ic_regions[i].ops, xive,
+ pnv_xive2_ic_regions[i].name,
+ pnv_xive2_ic_regions[i].pgsize << xive->ic_shift);
+ }
+
+ /*
+ * VC MMIO regions.
+ */
+ xive->esb_shift = 16;
+ xive->end_shift = 16;
+ memory_region_init(&xive->esb_mmio, OBJECT(xive), "xive-esb",
+ PNV10_XIVE2_ESB_SIZE);
+ memory_region_init(&xive->end_mmio, OBJECT(xive), "xive-end",
+ PNV10_XIVE2_END_SIZE);
+
+ /* Presenter Controller MMIO region (not modeled) */
+ xive->nvc_shift = 16;
+ xive->nvpg_shift = 16;
+ memory_region_init_io(&xive->nvc_mmio, OBJECT(dev),
+ &pnv_xive2_nvc_ops, xive,
+ "xive-nvc", PNV10_XIVE2_NVC_SIZE);
+
+ memory_region_init_io(&xive->nvpg_mmio, OBJECT(dev),
+ &pnv_xive2_nvpg_ops, xive,
+ "xive-nvpg", PNV10_XIVE2_NVPG_SIZE);
+
+ /* Thread Interrupt Management Area (Direct) */
+ xive->tm_shift = 16;
+ memory_region_init_io(&xive->tm_mmio, OBJECT(dev), &pnv_xive2_tm_ops,
+ xive, "xive-tima", PNV10_XIVE2_TM_SIZE);
+
+ qemu_register_reset(pnv_xive2_reset, dev);
+}
+
+static Property pnv_xive2_properties[] = {
+ DEFINE_PROP_UINT64("ic-bar", PnvXive2, ic_base, 0),
+ DEFINE_PROP_UINT64("esb-bar", PnvXive2, esb_base, 0),
+ DEFINE_PROP_UINT64("end-bar", PnvXive2, end_base, 0),
+ DEFINE_PROP_UINT64("nvc-bar", PnvXive2, nvc_base, 0),
+ DEFINE_PROP_UINT64("nvpg-bar", PnvXive2, nvpg_base, 0),
+ DEFINE_PROP_UINT64("tm-bar", PnvXive2, tm_base, 0),
+ DEFINE_PROP_UINT64("capabilities", PnvXive2, capabilities,
+ PNV_XIVE2_CAPABILITIES),
+ DEFINE_PROP_UINT64("config", PnvXive2, config,
+ PNV_XIVE2_CONFIGURATION),
+ DEFINE_PROP_LINK("chip", PnvXive2, chip, TYPE_PNV_CHIP, PnvChip *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void pnv_xive2_instance_init(Object *obj)
+{
+ PnvXive2 *xive = PNV_XIVE2(obj);
+
+ object_initialize_child(obj, "ipi_source", &xive->ipi_source,
+ TYPE_XIVE_SOURCE);
+ object_initialize_child(obj, "end_source", &xive->end_source,
+ TYPE_XIVE2_END_SOURCE);
+}
+
+static int pnv_xive2_dt_xscom(PnvXScomInterface *dev, void *fdt,
+ int xscom_offset)
+{
+ const char compat_p10[] = "ibm,power10-xive-x";
+ char *name;
+ int offset;
+ uint32_t reg[] = {
+ cpu_to_be32(PNV10_XSCOM_XIVE2_BASE),
+ cpu_to_be32(PNV10_XSCOM_XIVE2_SIZE)
+ };
+
+ name = g_strdup_printf("xive@%x", PNV10_XSCOM_XIVE2_BASE);
+ offset = fdt_add_subnode(fdt, xscom_offset, name);
+ _FDT(offset);
+ g_free(name);
+
+ _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));
+ _FDT(fdt_setprop(fdt, offset, "compatible", compat_p10,
+ sizeof(compat_p10)));
+ return 0;
+}
+
+static void pnv_xive2_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass);
+ Xive2RouterClass *xrc = XIVE2_ROUTER_CLASS(klass);
+ XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
+ XivePresenterClass *xpc = XIVE_PRESENTER_CLASS(klass);
+ PnvXive2Class *pxc = PNV_XIVE2_CLASS(klass);
+
+ xdc->dt_xscom = pnv_xive2_dt_xscom;
+
+ dc->desc = "PowerNV XIVE2 Interrupt Controller (POWER10)";
+ device_class_set_parent_realize(dc, pnv_xive2_realize,
+ &pxc->parent_realize);
+ device_class_set_props(dc, pnv_xive2_properties);
+
+ xrc->get_eas = pnv_xive2_get_eas;
+ xrc->get_end = pnv_xive2_get_end;
+ xrc->write_end = pnv_xive2_write_end;
+ xrc->get_nvp = pnv_xive2_get_nvp;
+ xrc->write_nvp = pnv_xive2_write_nvp;
+ xrc->get_block_id = pnv_xive2_get_block_id;
+
+ xnc->notify = pnv_xive2_notify;
+
+ xpc->match_nvt = pnv_xive2_match_nvt;
+};
+
+static const TypeInfo pnv_xive2_info = {
+ .name = TYPE_PNV_XIVE2,
+ .parent = TYPE_XIVE2_ROUTER,
+ .instance_init = pnv_xive2_instance_init,
+ .instance_size = sizeof(PnvXive2),
+ .class_init = pnv_xive2_class_init,
+ .class_size = sizeof(PnvXive2Class),
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_PNV_XSCOM_INTERFACE },
+ { }
+ }
+};
+
+static void pnv_xive2_register_types(void)
+{
+ type_register_static(&pnv_xive2_info);
+}
+
+type_init(pnv_xive2_register_types)
+
+static void xive2_nvp_pic_print_info(Xive2Nvp *nvp, uint32_t nvp_idx,
+ Monitor *mon)
+{
+ uint8_t eq_blk = xive_get_field32(NVP2_W5_VP_END_BLOCK, nvp->w5);
+ uint32_t eq_idx = xive_get_field32(NVP2_W5_VP_END_INDEX, nvp->w5);
+
+ if (!xive2_nvp_is_valid(nvp)) {
+ return;
+ }
+
+ monitor_printf(mon, " %08x end:%02x/%04x IPB:%02x\n",
+ nvp_idx, eq_blk, eq_idx,
+ xive_get_field32(NVP2_W2_IPB, nvp->w2));
+}
+
+/*
+ * If the table is direct, we can compute the number of PQ entries
+ * provisioned by FW.
+ */
+static uint32_t pnv_xive2_nr_esbs(PnvXive2 *xive)
+{
+ uint8_t blk = pnv_xive2_block_id(xive);
+ uint64_t vsd = xive->vsds[VST_ESB][blk];
+ uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12);
+
+ return VSD_INDIRECT & vsd ? 0 : vst_tsize * SBE_PER_BYTE;
+}
+
+/*
+ * Compute the number of entries per indirect subpage.
+ */
+static uint64_t pnv_xive2_vst_per_subpage(PnvXive2 *xive, uint32_t type)
+{
+ uint8_t blk = pnv_xive2_block_id(xive);
+ uint64_t vsd = xive->vsds[type][blk];
+ const XiveVstInfo *info = &vst_infos[type];
+ uint64_t vsd_addr;
+ uint32_t page_shift;
+
+ /* For direct tables, fake a valid value */
+ if (!(VSD_INDIRECT & vsd)) {
+ return 1;
+ }
+
+ /* Get the page size of the indirect table. */
+ vsd_addr = vsd & VSD_ADDRESS_MASK;
+ vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+
+ if (!(vsd & VSD_ADDRESS_MASK)) {
+#ifdef XIVE2_DEBUG
+ xive2_error(xive, "VST: invalid %s entry!?", info->name);
+#endif
+ return 0;
+ }
+
+ page_shift = GETFIELD(VSD_TSIZE, vsd) + 12;
+
+ if (!pnv_xive2_vst_page_size_allowed(page_shift)) {
+ xive2_error(xive, "VST: invalid %s page shift %d", info->name,
+ page_shift);
+ return 0;
+ }
+
+ return (1ull << page_shift) / info->size;
+}
+
+void pnv_xive2_pic_print_info(PnvXive2 *xive, Monitor *mon)
+{
+ Xive2Router *xrtr = XIVE2_ROUTER(xive);
+ uint8_t blk = pnv_xive2_block_id(xive);
+ uint8_t chip_id = xive->chip->chip_id;
+ uint32_t srcno0 = XIVE_EAS(blk, 0);
+ uint32_t nr_esbs = pnv_xive2_nr_esbs(xive);
+ Xive2Eas eas;
+ Xive2End end;
+ Xive2Nvp nvp;
+ int i;
+ uint64_t xive_nvp_per_subpage;
+
+ monitor_printf(mon, "XIVE[%x] Source %08x .. %08x\n", blk, srcno0,
+ srcno0 + nr_esbs - 1);
+ xive_source_pic_print_info(&xive->ipi_source, srcno0, mon);
+
+ monitor_printf(mon, "XIVE[%x] EAT %08x .. %08x\n", blk, srcno0,
+ srcno0 + nr_esbs - 1);
+ for (i = 0; i < nr_esbs; i++) {
+ if (xive2_router_get_eas(xrtr, blk, i, &eas)) {
+ break;
+ }
+ if (!xive2_eas_is_masked(&eas)) {
+ xive2_eas_pic_print_info(&eas, i, mon);
+ }
+ }
+
+ monitor_printf(mon, "XIVE[%x] #%d END Escalation EAT\n", chip_id, blk);
+ i = 0;
+ while (!xive2_router_get_end(xrtr, blk, i, &end)) {
+ xive2_end_eas_pic_print_info(&end, i++, mon);
+ }
+
+ monitor_printf(mon, "XIVE[%x] #%d ENDT\n", chip_id, blk);
+ i = 0;
+ while (!xive2_router_get_end(xrtr, blk, i, &end)) {
+ xive2_end_pic_print_info(&end, i++, mon);
+ }
+
+ monitor_printf(mon, "XIVE[%x] #%d NVPT %08x .. %08x\n", chip_id, blk,
+ 0, XIVE2_NVP_COUNT - 1);
+ xive_nvp_per_subpage = pnv_xive2_vst_per_subpage(xive, VST_NVP);
+ for (i = 0; i < XIVE2_NVP_COUNT; i += xive_nvp_per_subpage) {
+ while (!xive2_router_get_nvp(xrtr, blk, i, &nvp)) {
+ xive2_nvp_pic_print_info(&nvp, i++, mon);
+ }
+ }
+}
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 2f5358b70c95..28c928b3985a 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -707,6 +707,7 @@ static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
{
Pnv10Chip *chip10 = PNV10_CHIP(chip);
+ pnv_xive2_pic_print_info(&chip10->xive, mon);
pnv_psi_pic_print_info(&chip10->psi, mon);
}
@@ -1023,27 +1024,45 @@ static void pnv_chip_power9_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
static void pnv_chip_power10_intc_create(PnvChip *chip, PowerPCCPU *cpu,
Error **errp)
{
+ Pnv10Chip *chip10 = PNV10_CHIP(chip);
+ Error *local_err = NULL;
+ Object *obj;
PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
- /* Will be defined when the interrupt controller is */
- pnv_cpu->intc = NULL;
+ /*
+ * The core creates its interrupt presenter but the XIVE2 interrupt
+ * controller object is initialized afterwards. Hopefully, it's
+ * only used at runtime.
+ */
+ obj = xive_tctx_create(OBJECT(cpu), XIVE_PRESENTER(&chip10->xive),
+ &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ pnv_cpu->intc = obj;
}
static void pnv_chip_power10_intc_reset(PnvChip *chip, PowerPCCPU *cpu)
{
- ;
+ PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
+
+ xive_tctx_reset(XIVE_TCTX(pnv_cpu->intc));
}
static void pnv_chip_power10_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
{
PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
+ xive_tctx_destroy(XIVE_TCTX(pnv_cpu->intc));
pnv_cpu->intc = NULL;
}
static void pnv_chip_power10_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
Monitor *mon)
{
+ xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon);
}
/*
@@ -1578,6 +1597,9 @@ static void pnv_chip_power10_instance_init(Object *obj)
{
Pnv10Chip *chip10 = PNV10_CHIP(obj);
+ object_initialize_child(obj, "xive", &chip10->xive, TYPE_PNV_XIVE2);
+ object_property_add_alias(obj, "xive-fabric", OBJECT(&chip10->xive),
+ "xive-fabric");
object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
}
@@ -1603,6 +1625,27 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
return;
}
+ /* XIVE2 interrupt controller (POWER10) */
+ object_property_set_int(OBJECT(&chip10->xive), "ic-bar",
+ PNV10_XIVE2_IC_BASE(chip), &error_fatal);
+ object_property_set_int(OBJECT(&chip10->xive), "esb-bar",
+ PNV10_XIVE2_ESB_BASE(chip), &error_fatal);
+ object_property_set_int(OBJECT(&chip10->xive), "end-bar",
+ PNV10_XIVE2_END_BASE(chip), &error_fatal);
+ object_property_set_int(OBJECT(&chip10->xive), "nvpg-bar",
+ PNV10_XIVE2_NVPG_BASE(chip), &error_fatal);
+ object_property_set_int(OBJECT(&chip10->xive), "nvc-bar",
+ PNV10_XIVE2_NVC_BASE(chip), &error_fatal);
+ object_property_set_int(OBJECT(&chip10->xive), "tm-bar",
+ PNV10_XIVE2_TM_BASE(chip), &error_fatal);
+ object_property_set_link(OBJECT(&chip10->xive), "chip", OBJECT(chip),
+ &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(&chip10->xive), errp)) {
+ return;
+ }
+ pnv_xscom_add_subregion(chip, PNV10_XSCOM_XIVE2_BASE,
+ &chip10->xive.xscom_regs);
+
/* Processor Service Interface (PSI) Host Bridge */
object_property_set_int(OBJECT(&chip10->psi), "bar",
PNV10_PSIHB_BASE(chip), &error_fatal);
@@ -1891,6 +1934,35 @@ static int pnv_match_nvt(XiveFabric *xfb, uint8_t format,
return total_count;
}
+static int pnv10_xive_match_nvt(XiveFabric *xfb, uint8_t format,
+ uint8_t nvt_blk, uint32_t nvt_idx,
+ bool cam_ignore, uint8_t priority,
+ uint32_t logic_serv,
+ XiveTCTXMatch *match)
+{
+ PnvMachineState *pnv = PNV_MACHINE(xfb);
+ int total_count = 0;
+ int i;
+
+ for (i = 0; i < pnv->num_chips; i++) {
+ Pnv10Chip *chip10 = PNV10_CHIP(pnv->chips[i]);
+ XivePresenter *xptr = XIVE_PRESENTER(&chip10->xive);
+ XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr);
+ int count;
+
+ count = xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore,
+ priority, logic_serv, match);
+
+ if (count < 0) {
+ return count;
+ }
+
+ total_count += count;
+ }
+
+ return total_count;
+}
+
static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -1931,6 +2003,7 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc);
+ XiveFabricClass *xfc = XIVE_FABRIC_CLASS(oc);
static const char compat[] = "qemu,powernv10\0ibm,powernv";
mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
@@ -1939,6 +2012,8 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
pmc->compat = compat;
pmc->compat_size = sizeof(compat);
pmc->dt_power_mgt = pnv_dt_power_mgt;
+
+ xfc->match_nvt = pnv10_xive_match_nvt;
}
static bool pnv_machine_get_hb(Object *obj, Error **errp)
@@ -2050,6 +2125,10 @@ static const TypeInfo types[] = {
.name = MACHINE_TYPE_NAME("powernv10"),
.parent = TYPE_PNV_MACHINE,
.class_init = pnv_machine_power10_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_XIVE_FABRIC },
+ { },
+ },
},
{
.name = MACHINE_TYPE_NAME("powernv9"),
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (10 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 11/26] ppc/pnv: Add a XIVE2 controller to the POWER10 chip Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-25 6:06 ` David Gibson
2021-08-09 13:45 ` [PATCH 13/26] ppc/pnv: Add POWER10 quads Cédric Le Goater
` (15 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Our OCC model is very mininal and POWER10 can simply reuse the OCC
model we introduced for POWER9.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/pnv.h | 1 +
include/hw/ppc/pnv_occ.h | 2 ++
include/hw/ppc/pnv_xscom.h | 3 +++
hw/ppc/pnv.c | 10 ++++++++++
hw/ppc/pnv_occ.c | 16 ++++++++++++++++
5 files changed, 32 insertions(+)
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index b773b09f9f8e..a299fbc7f25c 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -127,6 +127,7 @@ struct Pnv10Chip {
PnvXive2 xive;
Pnv9Psi psi;
PnvLpcController lpc;
+ PnvOCC occ;
};
#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h
index b78185aecaf2..f982ba002481 100644
--- a/include/hw/ppc/pnv_occ.h
+++ b/include/hw/ppc/pnv_occ.h
@@ -32,6 +32,8 @@ DECLARE_INSTANCE_CHECKER(PnvOCC, PNV8_OCC,
#define TYPE_PNV9_OCC TYPE_PNV_OCC "-POWER9"
DECLARE_INSTANCE_CHECKER(PnvOCC, PNV9_OCC,
TYPE_PNV9_OCC)
+#define TYPE_PNV10_OCC TYPE_PNV_OCC "-POWER10"
+DECLARE_INSTANCE_CHECKER(PnvOCC, PNV10_OCC, TYPE_PNV10_OCC)
#define PNV_OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000
#define PNV_OCC_SENSOR_DATA_BLOCK_SIZE 0x00025800
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 188da874a4b0..151df15378d1 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -131,6 +131,9 @@ struct PnvXScomInterfaceClass {
#define PNV10_XSCOM_PSIHB_BASE 0x3011D00
#define PNV10_XSCOM_PSIHB_SIZE 0x100
+#define PNV10_XSCOM_OCC_BASE PNV9_XSCOM_OCC_BASE
+#define PNV10_XSCOM_OCC_SIZE PNV9_XSCOM_OCC_SIZE
+
#define PNV10_XSCOM_XIVE2_BASE 0x2010800
#define PNV10_XSCOM_XIVE2_SIZE 0x400
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 28c928b3985a..f75d90e61fa8 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1602,6 +1602,7 @@ static void pnv_chip_power10_instance_init(Object *obj)
"xive-fabric");
object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
+ object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
}
static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
@@ -1667,6 +1668,15 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
chip->fw_mr = &chip10->lpc.isa_fw;
chip->dt_isa_nodename = g_strdup_printf("/lpcm-opb@%" PRIx64 "/lpc@0",
(uint64_t) PNV10_LPCM_BASE(chip));
+
+ /* Create the simplified OCC model */
+ object_property_set_link(OBJECT(&chip10->occ), "psi", OBJECT(&chip10->psi),
+ &error_abort);
+ if (!qdev_realize(DEVICE(&chip10->occ), NULL, errp)) {
+ return;
+ }
+ pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
+ &chip10->occ.xscom_regs);
}
static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c
index 5a716c256edc..4ed66f5e1fcc 100644
--- a/hw/ppc/pnv_occ.c
+++ b/hw/ppc/pnv_occ.c
@@ -236,7 +236,9 @@ static const MemoryRegionOps pnv_occ_power9_xscom_ops = {
static void pnv_occ_power9_class_init(ObjectClass *klass, void *data)
{
PnvOCCClass *poc = PNV_OCC_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->desc = "PowerNV OCC Controller (POWER9)";
poc->xscom_size = PNV9_XSCOM_OCC_SIZE;
poc->xscom_ops = &pnv_occ_power9_xscom_ops;
poc->psi_irq = PSIHB9_IRQ_OCC;
@@ -249,6 +251,19 @@ static const TypeInfo pnv_occ_power9_type_info = {
.class_init = pnv_occ_power9_class_init,
};
+static void pnv_occ_power10_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "PowerNV OCC Controller (POWER10)";
+}
+
+static const TypeInfo pnv_occ_power10_type_info = {
+ .name = TYPE_PNV10_OCC,
+ .parent = TYPE_PNV9_OCC,
+ .class_init = pnv_occ_power10_class_init,
+};
+
static void pnv_occ_realize(DeviceState *dev, Error **errp)
{
PnvOCC *occ = PNV_OCC(dev);
@@ -297,6 +312,7 @@ static void pnv_occ_register_types(void)
type_register_static(&pnv_occ_type_info);
type_register_static(&pnv_occ_power8_type_info);
type_register_static(&pnv_occ_power9_type_info);
+ type_register_static(&pnv_occ_power10_type_info);
}
type_init(pnv_occ_register_types);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10
2021-08-09 13:45 ` [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10 Cédric Le Goater
@ 2021-08-25 6:06 ` David Gibson
0 siblings, 0 replies; 49+ messages in thread
From: David Gibson @ 2021-08-25 6:06 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 5249 bytes --]
On Mon, Aug 09, 2021 at 03:45:33PM +0200, Cédric Le Goater wrote:
> Our OCC model is very mininal and POWER10 can simply reuse the OCC
> model we introduced for POWER9.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> include/hw/ppc/pnv.h | 1 +
> include/hw/ppc/pnv_occ.h | 2 ++
> include/hw/ppc/pnv_xscom.h | 3 +++
> hw/ppc/pnv.c | 10 ++++++++++
> hw/ppc/pnv_occ.c | 16 ++++++++++++++++
> 5 files changed, 32 insertions(+)
>
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index b773b09f9f8e..a299fbc7f25c 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -127,6 +127,7 @@ struct Pnv10Chip {
> PnvXive2 xive;
> Pnv9Psi psi;
> PnvLpcController lpc;
> + PnvOCC occ;
> };
>
> #define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
> diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h
> index b78185aecaf2..f982ba002481 100644
> --- a/include/hw/ppc/pnv_occ.h
> +++ b/include/hw/ppc/pnv_occ.h
> @@ -32,6 +32,8 @@ DECLARE_INSTANCE_CHECKER(PnvOCC, PNV8_OCC,
> #define TYPE_PNV9_OCC TYPE_PNV_OCC "-POWER9"
> DECLARE_INSTANCE_CHECKER(PnvOCC, PNV9_OCC,
> TYPE_PNV9_OCC)
> +#define TYPE_PNV10_OCC TYPE_PNV_OCC "-POWER10"
> +DECLARE_INSTANCE_CHECKER(PnvOCC, PNV10_OCC, TYPE_PNV10_OCC)
>
> #define PNV_OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000
> #define PNV_OCC_SENSOR_DATA_BLOCK_SIZE 0x00025800
> diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
> index 188da874a4b0..151df15378d1 100644
> --- a/include/hw/ppc/pnv_xscom.h
> +++ b/include/hw/ppc/pnv_xscom.h
> @@ -131,6 +131,9 @@ struct PnvXScomInterfaceClass {
> #define PNV10_XSCOM_PSIHB_BASE 0x3011D00
> #define PNV10_XSCOM_PSIHB_SIZE 0x100
>
> +#define PNV10_XSCOM_OCC_BASE PNV9_XSCOM_OCC_BASE
> +#define PNV10_XSCOM_OCC_SIZE PNV9_XSCOM_OCC_SIZE
> +
> #define PNV10_XSCOM_XIVE2_BASE 0x2010800
> #define PNV10_XSCOM_XIVE2_SIZE 0x400
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 28c928b3985a..f75d90e61fa8 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1602,6 +1602,7 @@ static void pnv_chip_power10_instance_init(Object *obj)
> "xive-fabric");
> object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
> object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
> + object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
> }
>
> static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> @@ -1667,6 +1668,15 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> chip->fw_mr = &chip10->lpc.isa_fw;
> chip->dt_isa_nodename = g_strdup_printf("/lpcm-opb@%" PRIx64 "/lpc@0",
> (uint64_t) PNV10_LPCM_BASE(chip));
> +
> + /* Create the simplified OCC model */
> + object_property_set_link(OBJECT(&chip10->occ), "psi", OBJECT(&chip10->psi),
> + &error_abort);
> + if (!qdev_realize(DEVICE(&chip10->occ), NULL, errp)) {
> + return;
> + }
> + pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
> + &chip10->occ.xscom_regs);
> }
>
> static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
> diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c
> index 5a716c256edc..4ed66f5e1fcc 100644
> --- a/hw/ppc/pnv_occ.c
> +++ b/hw/ppc/pnv_occ.c
> @@ -236,7 +236,9 @@ static const MemoryRegionOps pnv_occ_power9_xscom_ops = {
> static void pnv_occ_power9_class_init(ObjectClass *klass, void *data)
> {
> PnvOCCClass *poc = PNV_OCC_CLASS(klass);
> + DeviceClass *dc = DEVICE_CLASS(klass);
>
> + dc->desc = "PowerNV OCC Controller (POWER9)";
> poc->xscom_size = PNV9_XSCOM_OCC_SIZE;
> poc->xscom_ops = &pnv_occ_power9_xscom_ops;
> poc->psi_irq = PSIHB9_IRQ_OCC;
> @@ -249,6 +251,19 @@ static const TypeInfo pnv_occ_power9_type_info = {
> .class_init = pnv_occ_power9_class_init,
> };
>
> +static void pnv_occ_power10_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> +
> + dc->desc = "PowerNV OCC Controller (POWER10)";
> +}
> +
> +static const TypeInfo pnv_occ_power10_type_info = {
> + .name = TYPE_PNV10_OCC,
> + .parent = TYPE_PNV9_OCC,
> + .class_init = pnv_occ_power10_class_init,
> +};
> +
> static void pnv_occ_realize(DeviceState *dev, Error **errp)
> {
> PnvOCC *occ = PNV_OCC(dev);
> @@ -297,6 +312,7 @@ static void pnv_occ_register_types(void)
> type_register_static(&pnv_occ_type_info);
> type_register_static(&pnv_occ_power8_type_info);
> type_register_static(&pnv_occ_power9_type_info);
> + type_register_static(&pnv_occ_power10_type_info);
> }
>
> type_init(pnv_occ_register_types);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 13/26] ppc/pnv: Add POWER10 quads
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (11 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10 Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-25 6:09 ` David Gibson
2021-08-09 13:45 ` [PATCH 14/26] ppc/pnv: Add model for POWER10 PHB5 PCIe Host bridge Cédric Le Goater
` (14 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Still needs some refinements on the XSCOM registers.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/pnv.h | 3 +++
hw/ppc/pnv.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+)
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index a299fbc7f25c..13495423283a 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -128,6 +128,9 @@ struct Pnv10Chip {
Pnv9Psi psi;
PnvLpcController lpc;
PnvOCC occ;
+
+ uint32_t nr_quads;
+ PnvQuad *quads;
};
#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index f75d90e61fa8..f670d97c5f91 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1605,6 +1605,34 @@ static void pnv_chip_power10_instance_init(Object *obj)
object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
}
+
+static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
+{
+ PnvChip *chip = PNV_CHIP(chip10);
+ int i;
+
+ chip10->nr_quads = DIV_ROUND_UP(chip->nr_cores, 4);
+ chip10->quads = g_new0(PnvQuad, chip10->nr_quads);
+
+ for (i = 0; i < chip10->nr_quads; i++) {
+ char eq_name[32];
+ PnvQuad *eq = &chip10->quads[i];
+ PnvCore *pnv_core = chip->cores[i * 4];
+ int core_id = CPU_CORE(pnv_core)->core_id;
+
+ snprintf(eq_name, sizeof(eq_name), "eq[%d]", core_id);
+ object_initialize_child_with_props(OBJECT(chip), eq_name, eq,
+ sizeof(*eq), TYPE_PNV_QUAD,
+ &error_fatal, NULL);
+
+ object_property_set_int(OBJECT(eq), "id", core_id, &error_fatal);
+ qdev_realize(DEVICE(eq), NULL, &error_fatal);
+
+ pnv_xscom_add_subregion(chip, PNV10_XSCOM_EQ_BASE(eq->id),
+ &eq->xscom_regs);
+ }
+}
+
static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
{
PnvChipClass *pcc = PNV_CHIP_GET_CLASS(dev);
@@ -1626,6 +1654,12 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
return;
}
+ pnv_chip_power10_quad_realize(chip10, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
/* XIVE2 interrupt controller (POWER10) */
object_property_set_int(OBJECT(&chip10->xive), "ic-bar",
PNV10_XIVE2_IC_BASE(chip), &error_fatal);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 13/26] ppc/pnv: Add POWER10 quads
2021-08-09 13:45 ` [PATCH 13/26] ppc/pnv: Add POWER10 quads Cédric Le Goater
@ 2021-08-25 6:09 ` David Gibson
2021-08-31 13:45 ` Cédric Le Goater
0 siblings, 1 reply; 49+ messages in thread
From: David Gibson @ 2021-08-25 6:09 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 3091 bytes --]
On Mon, Aug 09, 2021 at 03:45:34PM +0200, Cédric Le Goater wrote:
> Still needs some refinements on the XSCOM registers.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> include/hw/ppc/pnv.h | 3 +++
> hw/ppc/pnv.c | 34 ++++++++++++++++++++++++++++++++++
> 2 files changed, 37 insertions(+)
>
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index a299fbc7f25c..13495423283a 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -128,6 +128,9 @@ struct Pnv10Chip {
> Pnv9Psi psi;
> PnvLpcController lpc;
> PnvOCC occ;
> +
> + uint32_t nr_quads;
> + PnvQuad *quads;
> };
>
> #define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index f75d90e61fa8..f670d97c5f91 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1605,6 +1605,34 @@ static void pnv_chip_power10_instance_init(Object *obj)
> object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
> }
>
> +
> +static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
> +{
> + PnvChip *chip = PNV_CHIP(chip10);
> + int i;
> +
> + chip10->nr_quads = DIV_ROUND_UP(chip->nr_cores, 4);
> + chip10->quads = g_new0(PnvQuad, chip10->nr_quads);
> +
> + for (i = 0; i < chip10->nr_quads; i++) {
> + char eq_name[32];
> + PnvQuad *eq = &chip10->quads[i];
> + PnvCore *pnv_core = chip->cores[i * 4];
> + int core_id = CPU_CORE(pnv_core)->core_id;
> +
> + snprintf(eq_name, sizeof(eq_name), "eq[%d]", core_id);
> + object_initialize_child_with_props(OBJECT(chip), eq_name, eq,
> + sizeof(*eq), TYPE_PNV_QUAD,
> + &error_fatal, NULL);
> +
> + object_property_set_int(OBJECT(eq), "id", core_id, &error_fatal);
"id" might not be a good name for this, since "id" on QOM objects is
nearly always the (usually) user assigned name - which is a string.
> + qdev_realize(DEVICE(eq), NULL, &error_fatal);
> +
> + pnv_xscom_add_subregion(chip, PNV10_XSCOM_EQ_BASE(eq->id),
> + &eq->xscom_regs);
> + }
> +}
> +
> static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> {
> PnvChipClass *pcc = PNV_CHIP_GET_CLASS(dev);
> @@ -1626,6 +1654,12 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> return;
> }
>
> + pnv_chip_power10_quad_realize(chip10, &local_err);
> + if (local_err) {
> + error_propagate(errp, local_err);
> + return;
> + }
> +
> /* XIVE2 interrupt controller (POWER10) */
> object_property_set_int(OBJECT(&chip10->xive), "ic-bar",
> PNV10_XIVE2_IC_BASE(chip), &error_fatal);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 13/26] ppc/pnv: Add POWER10 quads
2021-08-25 6:09 ` David Gibson
@ 2021-08-31 13:45 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-31 13:45 UTC (permalink / raw)
To: David Gibson; +Cc: qemu-ppc, Greg Kurz, qemu-devel
On 8/25/21 8:09 AM, David Gibson wrote:
> On Mon, Aug 09, 2021 at 03:45:34PM +0200, Cédric Le Goater wrote:
>> Still needs some refinements on the XSCOM registers.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> include/hw/ppc/pnv.h | 3 +++
>> hw/ppc/pnv.c | 34 ++++++++++++++++++++++++++++++++++
>> 2 files changed, 37 insertions(+)
>>
>> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
>> index a299fbc7f25c..13495423283a 100644
>> --- a/include/hw/ppc/pnv.h
>> +++ b/include/hw/ppc/pnv.h
>> @@ -128,6 +128,9 @@ struct Pnv10Chip {
>> Pnv9Psi psi;
>> PnvLpcController lpc;
>> PnvOCC occ;
>> +
>> + uint32_t nr_quads;
>> + PnvQuad *quads;
>> };
>>
>> #define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
>> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
>> index f75d90e61fa8..f670d97c5f91 100644
>> --- a/hw/ppc/pnv.c
>> +++ b/hw/ppc/pnv.c
>> @@ -1605,6 +1605,34 @@ static void pnv_chip_power10_instance_init(Object *obj)
>> object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
>> }
>>
>> +
>> +static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
>> +{
>> + PnvChip *chip = PNV_CHIP(chip10);
>> + int i;
>> +
>> + chip10->nr_quads = DIV_ROUND_UP(chip->nr_cores, 4);
>> + chip10->quads = g_new0(PnvQuad, chip10->nr_quads);
>> +
>> + for (i = 0; i < chip10->nr_quads; i++) {
>> + char eq_name[32];
>> + PnvQuad *eq = &chip10->quads[i];
>> + PnvCore *pnv_core = chip->cores[i * 4];
>> + int core_id = CPU_CORE(pnv_core)->core_id;
>> +
>> + snprintf(eq_name, sizeof(eq_name), "eq[%d]", core_id);
>> + object_initialize_child_with_props(OBJECT(chip), eq_name, eq,
>> + sizeof(*eq), TYPE_PNV_QUAD,
>> + &error_fatal, NULL);
>> +
>> + object_property_set_int(OBJECT(eq), "id", core_id, &error_fatal);
>
> "id" might not be a good name for this, since "id" on QOM objects is
> nearly always the (usually) user assigned name - which is a string.
I will change PnvQuad before resending.
Thanks,
C.
>
>> + qdev_realize(DEVICE(eq), NULL, &error_fatal);
>> +
>> + pnv_xscom_add_subregion(chip, PNV10_XSCOM_EQ_BASE(eq->id),
>> + &eq->xscom_regs);
>> + }
>> +}
>> +
>> static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
>> {
>> PnvChipClass *pcc = PNV_CHIP_GET_CLASS(dev);
>> @@ -1626,6 +1654,12 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
>> return;
>> }
>>
>> + pnv_chip_power10_quad_realize(chip10, &local_err);
>> + if (local_err) {
>> + error_propagate(errp, local_err);
>> + return;
>> + }
>> +
>> /* XIVE2 interrupt controller (POWER10) */
>> object_property_set_int(OBJECT(&chip10->xive), "ic-bar",
>> PNV10_XIVE2_IC_BASE(chip), &error_fatal);
>
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 14/26] ppc/pnv: Add model for POWER10 PHB5 PCIe Host bridge
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (12 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 13/26] ppc/pnv: Add POWER10 quads Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 15/26] ppc/pnv: Add a HOMER model to POWER10 Cédric Le Goater
` (13 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
PHB4 and PHB5 are very similar. Use the PHB4 models with some minor
adjustements in a subclass for P10.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/pci-host/pnv_phb4.h | 11 ++++
include/hw/ppc/pnv.h | 3 ++
include/hw/ppc/pnv_xscom.h | 6 +++
hw/pci-host/pnv_phb4_pec.c | 44 ++++++++++++++++
hw/ppc/pnv.c | 95 +++++++++++++++++++++++++++++++++-
5 files changed, 158 insertions(+), 1 deletion(-)
diff --git a/include/hw/pci-host/pnv_phb4.h b/include/hw/pci-host/pnv_phb4.h
index 27556ae53425..78ae74349299 100644
--- a/include/hw/pci-host/pnv_phb4.h
+++ b/include/hw/pci-host/pnv_phb4.h
@@ -221,4 +221,15 @@ struct PnvPhb4PecClass {
int stk_compat_size;
};
+/*
+ * POWER10 definitions
+ */
+
+#define PNV_PHB5_VERSION 0x000000a500000001ull
+#define PNV_PHB5_DEVICE_ID 0x0652
+
+#define TYPE_PNV_PHB5_PEC "pnv-phb5-pec"
+#define PNV_PHB5_PEC(obj) \
+ OBJECT_CHECK(PnvPhb4PecState, (obj), TYPE_PNV_PHB5_PEC)
+
#endif /* PCI_HOST_PNV_PHB4_H */
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index 13495423283a..f44b9947d00e 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -131,6 +131,9 @@ struct Pnv10Chip {
uint32_t nr_quads;
PnvQuad *quads;
+
+#define PNV10_CHIP_MAX_PEC 2
+ PnvPhb4PecState pecs[PNV10_CHIP_MAX_PEC];
};
#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 151df15378d1..75db33d46af6 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -137,6 +137,12 @@ struct PnvXScomInterfaceClass {
#define PNV10_XSCOM_XIVE2_BASE 0x2010800
#define PNV10_XSCOM_XIVE2_SIZE 0x400
+#define PNV10_XSCOM_PEC_NEST_BASE 0x3011800 /* index goes downwards ... */
+#define PNV10_XSCOM_PEC_NEST_SIZE 0x100
+
+#define PNV10_XSCOM_PEC_PCI_BASE 0x8010800 /* index goes upwards ... */
+#define PNV10_XSCOM_PEC_PCI_SIZE 0x200
+
void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset,
uint64_t xscom_base, uint64_t xscom_size,
diff --git a/hw/pci-host/pnv_phb4_pec.c b/hw/pci-host/pnv_phb4_pec.c
index 741ddc90ed8d..ab13311ef4c7 100644
--- a/hw/pci-host/pnv_phb4_pec.c
+++ b/hw/pci-host/pnv_phb4_pec.c
@@ -584,9 +584,53 @@ static const TypeInfo pnv_pec_stk_type_info = {
}
};
+/*
+ * POWER10 definitions
+ */
+
+static uint32_t pnv_phb5_pec_xscom_pci_base(PnvPhb4PecState *pec)
+{
+ return PNV10_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
+}
+
+static uint32_t pnv_phb5_pec_xscom_nest_base(PnvPhb4PecState *pec)
+{
+ /* index goes down ... */
+ return PNV10_XSCOM_PEC_NEST_BASE - 0x1000000 * pec->index;
+}
+
+static void pnv_phb5_pec_class_init(ObjectClass *klass, void *data)
+{
+ PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
+ static const char compat[] = "ibm,power10-pbcq";
+ static const char stk_compat[] = "ibm,power10-phb-stack";
+
+ pecc->xscom_nest_base = pnv_phb5_pec_xscom_nest_base;
+ pecc->xscom_pci_base = pnv_phb5_pec_xscom_pci_base;
+ pecc->xscom_nest_size = PNV10_XSCOM_PEC_NEST_SIZE;
+ pecc->xscom_pci_size = PNV10_XSCOM_PEC_PCI_SIZE;
+ pecc->compat = compat;
+ pecc->compat_size = sizeof(compat);
+ pecc->stk_compat = stk_compat;
+ pecc->stk_compat_size = sizeof(stk_compat);
+}
+
+static const TypeInfo pnv_phb5_pec_type_info = {
+ .name = TYPE_PNV_PHB5_PEC,
+ .parent = TYPE_PNV_PHB4_PEC,
+ .instance_size = sizeof(PnvPhb4PecState),
+ .class_init = pnv_phb5_pec_class_init,
+ .class_size = sizeof(PnvPhb4PecClass),
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_PNV_XSCOM_INTERFACE },
+ { }
+ }
+};
+
static void pnv_pec_register_types(void)
{
type_register_static(&pnv_pec_type_info);
+ type_register_static(&pnv_phb5_pec_type_info);
type_register_static(&pnv_pec_stk_type_info);
}
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index f670d97c5f91..125466023148 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -706,9 +706,17 @@ static void pnv_ipmi_bt_init(ISABus *bus, IPMIBmc *bmc, uint32_t irq)
static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon)
{
Pnv10Chip *chip10 = PNV10_CHIP(chip);
+ int i, j;
pnv_xive2_pic_print_info(&chip10->xive, mon);
pnv_psi_pic_print_info(&chip10->psi, mon);
+
+ for (i = 0; i < PNV10_CHIP_MAX_PEC; i++) {
+ PnvPhb4PecState *pec = &chip10->pecs[i];
+ for (j = 0; j < pec->num_stacks; j++) {
+ pnv_phb4_pic_print_info(&pec->stacks[j].phb, mon);
+ }
+ }
}
/* Always give the first 1GB to chip 0 else we won't boot */
@@ -1595,7 +1603,10 @@ static void pnv_chip_power9_class_init(ObjectClass *klass, void *data)
static void pnv_chip_power10_instance_init(Object *obj)
{
+ PnvChip *chip = PNV_CHIP(obj);
Pnv10Chip *chip10 = PNV10_CHIP(obj);
+ PnvChipClass *pcc = PNV_CHIP_GET_CLASS(obj);
+ int i;
object_initialize_child(obj, "xive", &chip10->xive, TYPE_PNV_XIVE2);
object_property_add_alias(obj, "xive-fabric", OBJECT(&chip10->xive),
@@ -1603,8 +1614,17 @@ static void pnv_chip_power10_instance_init(Object *obj)
object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
-}
+ for (i = 0; i < PNV10_CHIP_MAX_PEC; i++) {
+ object_initialize_child(obj, "pec[*]", &chip10->pecs[i],
+ TYPE_PNV_PHB5_PEC);
+ }
+
+ /*
+ * Number of PHBs is the chip default
+ */
+ chip->num_phbs = pcc->num_phbs;
+}
static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
{
@@ -1633,6 +1653,71 @@ static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
}
}
+static void pnv_chip_power10_phb_realize(PnvChip *chip, Error **errp)
+{
+ Pnv10Chip *chip10 = PNV10_CHIP(chip);
+ int i, j;
+ int phb_id = 0;
+
+ for (i = 0; i < PNV10_CHIP_MAX_PEC; i++) {
+ PnvPhb4PecState *pec = &chip10->pecs[i];
+ PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
+ uint32_t pec_nest_base;
+ uint32_t pec_pci_base;
+
+ object_property_set_int(OBJECT(pec), "index", i, &error_fatal);
+ /*
+ * PEC0 -> 3 stacks
+ * PEC1 -> 3 stacks
+ */
+ object_property_set_int(OBJECT(pec), "num-stacks", 3,
+ &error_fatal);
+ object_property_set_int(OBJECT(pec), "chip-id", chip->chip_id,
+ &error_fatal);
+ object_property_set_link(OBJECT(pec), "system-memory",
+ OBJECT(get_system_memory()), &error_abort);
+ if (!qdev_realize(DEVICE(pec), NULL, errp)) {
+ return;
+ }
+
+ pec_nest_base = pecc->xscom_nest_base(pec);
+ pec_pci_base = pecc->xscom_pci_base(pec);
+
+ pnv_xscom_add_subregion(chip, pec_nest_base, &pec->nest_regs_mr);
+ pnv_xscom_add_subregion(chip, pec_pci_base, &pec->pci_regs_mr);
+
+ for (j = 0; j < pec->num_stacks && phb_id < chip->num_phbs;
+ j++, phb_id++) {
+ PnvPhb4PecStack *stack = &pec->stacks[j];
+ Object *obj = OBJECT(&stack->phb);
+
+ object_property_set_int(obj, "index", phb_id, &error_fatal);
+ object_property_set_int(obj, "chip-id", chip->chip_id,
+ &error_fatal);
+ object_property_set_int(obj, "version", PNV_PHB5_VERSION,
+ &error_fatal);
+ object_property_set_int(obj, "device-id", PNV_PHB5_DEVICE_ID,
+ &error_fatal);
+ object_property_set_link(obj, "stack", OBJECT(stack), &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(obj), errp)) {
+ return;
+ }
+
+ /* Populate the XSCOM address space. */
+ pnv_xscom_add_subregion(chip,
+ pec_nest_base + 0x40 * (stack->stack_no + 1),
+ &stack->nest_regs_mr);
+ pnv_xscom_add_subregion(chip,
+ pec_pci_base + 0x40 * (stack->stack_no + 1),
+ &stack->pci_regs_mr);
+ pnv_xscom_add_subregion(chip,
+ pec_pci_base + PNV9_XSCOM_PEC_PCI_STK0 +
+ 0x40 * stack->stack_no,
+ &stack->phb_regs_mr);
+ }
+ }
+}
+
static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
{
PnvChipClass *pcc = PNV_CHIP_GET_CLASS(dev);
@@ -1711,6 +1796,13 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
}
pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
&chip10->occ.xscom_regs);
+
+ /* PHBs */
+ pnv_chip_power10_phb_realize(chip, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
}
static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
@@ -1737,6 +1829,7 @@ static void pnv_chip_power10_class_init(ObjectClass *klass, void *data)
k->xscom_core_base = pnv_chip_power10_xscom_core_base;
k->xscom_pcba = pnv_chip_power10_xscom_pcba;
dc->desc = "PowerNV Chip POWER10";
+ k->num_phbs = 6;
device_class_set_parent_realize(dc, pnv_chip_power10_realize,
&k->parent_realize);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 15/26] ppc/pnv: Add a HOMER model to POWER10
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (13 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 14/26] ppc/pnv: Add model for POWER10 PHB5 PCIe Host bridge Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-25 6:12 ` David Gibson
2021-08-09 13:45 ` [PATCH 16/26] ppc/psi: Add support for StoreEOI and 64k ESB pages (POWER10) Cédric Le Goater
` (12 subsequent siblings)
27 siblings, 1 reply; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/pnv.h | 10 ++++++
include/hw/ppc/pnv_homer.h | 3 ++
include/hw/ppc/pnv_xscom.h | 3 ++
hw/ppc/pnv.c | 20 ++++++++++++
hw/ppc/pnv_homer.c | 64 ++++++++++++++++++++++++++++++++++++++
5 files changed, 100 insertions(+)
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index f44b9947d00e..3ea2d798eed1 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -128,6 +128,7 @@ struct Pnv10Chip {
Pnv9Psi psi;
PnvLpcController lpc;
PnvOCC occ;
+ PnvHomer homer;
uint32_t nr_quads;
PnvQuad *quads;
@@ -358,4 +359,13 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
#define PNV10_XIVE2_END_SIZE 0x0000020000000000ull
#define PNV10_XIVE2_END_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006060000000000ull)
+#define PNV10_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
+#define PNV10_OCC_COMMON_AREA_BASE 0x300fff800000ull
+#define PNV10_OCC_SENSOR_BASE(chip) (PNV10_OCC_COMMON_AREA_BASE + \
+ PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
+
+#define PNV10_HOMER_SIZE 0x0000000000400000ull
+#define PNV10_HOMER_BASE(chip) \
+ (0x300ffd800000ll + ((uint64_t)(chip)->chip_id) * PNV10_HOMER_SIZE)
+
#endif /* PPC_PNV_H */
diff --git a/include/hw/ppc/pnv_homer.h b/include/hw/ppc/pnv_homer.h
index 1889e3083c57..07e8b193116e 100644
--- a/include/hw/ppc/pnv_homer.h
+++ b/include/hw/ppc/pnv_homer.h
@@ -32,6 +32,9 @@ DECLARE_INSTANCE_CHECKER(PnvHomer, PNV8_HOMER,
#define TYPE_PNV9_HOMER TYPE_PNV_HOMER "-POWER9"
DECLARE_INSTANCE_CHECKER(PnvHomer, PNV9_HOMER,
TYPE_PNV9_HOMER)
+#define TYPE_PNV10_HOMER TYPE_PNV_HOMER "-POWER10"
+DECLARE_INSTANCE_CHECKER(PnvHomer, PNV10_HOMER,
+ TYPE_PNV10_HOMER)
struct PnvHomer {
DeviceState parent;
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 75db33d46af6..7c7440de0c40 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -134,6 +134,9 @@ struct PnvXScomInterfaceClass {
#define PNV10_XSCOM_OCC_BASE PNV9_XSCOM_OCC_BASE
#define PNV10_XSCOM_OCC_SIZE PNV9_XSCOM_OCC_SIZE
+#define PNV10_XSCOM_PBA_BASE 0x01010CDA
+#define PNV10_XSCOM_PBA_SIZE 0x40
+
#define PNV10_XSCOM_XIVE2_BASE 0x2010800
#define PNV10_XSCOM_XIVE2_SIZE 0x400
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 125466023148..2d7eade23ccc 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1614,6 +1614,7 @@ static void pnv_chip_power10_instance_init(Object *obj)
object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
+ object_initialize_child(obj, "homer", &chip10->homer, TYPE_PNV10_HOMER);
for (i = 0; i < PNV10_CHIP_MAX_PEC; i++) {
object_initialize_child(obj, "pec[*]", &chip10->pecs[i],
@@ -1797,6 +1798,25 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
&chip10->occ.xscom_regs);
+ /* OCC SRAM model */
+ memory_region_add_subregion(get_system_memory(),
+ PNV10_OCC_SENSOR_BASE(chip),
+ &chip10->occ.sram_regs);
+
+ /* HOMER */
+ object_property_set_link(OBJECT(&chip10->homer), "chip", OBJECT(chip),
+ &error_abort);
+ if (!qdev_realize(DEVICE(&chip10->homer), NULL, errp)) {
+ return;
+ }
+ /* Homer Xscom region */
+ pnv_xscom_add_subregion(chip, PNV10_XSCOM_PBA_BASE,
+ &chip10->homer.pba_regs);
+
+ /* Homer mmio region */
+ memory_region_add_subregion(get_system_memory(), PNV10_HOMER_BASE(chip),
+ &chip10->homer.regs);
+
/* PHBs */
pnv_chip_power10_phb_realize(chip, &local_err);
if (local_err) {
diff --git a/hw/ppc/pnv_homer.c b/hw/ppc/pnv_homer.c
index 9a262629b73a..ea73919e54ca 100644
--- a/hw/ppc/pnv_homer.c
+++ b/hw/ppc/pnv_homer.c
@@ -332,6 +332,69 @@ static const TypeInfo pnv_homer_power9_type_info = {
.class_init = pnv_homer_power9_class_init,
};
+static uint64_t pnv_homer_power10_pba_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ PnvHomer *homer = PNV_HOMER(opaque);
+ PnvChip *chip = homer->chip;
+ uint32_t reg = addr >> 3;
+ uint64_t val = 0;
+
+ switch (reg) {
+ case PBA_BAR0:
+ val = PNV10_HOMER_BASE(chip);
+ break;
+ case PBA_BARMASK0: /* P10 homer region mask */
+ val = (PNV10_HOMER_SIZE - 1) & 0x300000;
+ break;
+ case PBA_BAR2: /* P10 occ common area */
+ val = PNV10_OCC_COMMON_AREA_BASE;
+ break;
+ case PBA_BARMASK2: /* P10 occ common area size */
+ val = (PNV10_OCC_COMMON_AREA_SIZE - 1) & 0x700000;
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP, "PBA: read to unimplemented register: Ox%"
+ HWADDR_PRIx "\n", addr >> 3);
+ }
+ return val;
+}
+
+static void pnv_homer_power10_pba_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ qemu_log_mask(LOG_UNIMP, "PBA: write to unimplemented register: Ox%"
+ HWADDR_PRIx "\n", addr >> 3);
+}
+
+static const MemoryRegionOps pnv_homer_power10_pba_ops = {
+ .read = pnv_homer_power10_pba_read,
+ .write = pnv_homer_power10_pba_write,
+ .valid.min_access_size = 8,
+ .valid.max_access_size = 8,
+ .impl.min_access_size = 8,
+ .impl.max_access_size = 8,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static void pnv_homer_power10_class_init(ObjectClass *klass, void *data)
+{
+ PnvHomerClass *homer = PNV_HOMER_CLASS(klass);
+
+ homer->pba_size = PNV10_XSCOM_PBA_SIZE;
+ homer->pba_ops = &pnv_homer_power10_pba_ops;
+ homer->homer_size = PNV10_HOMER_SIZE;
+ homer->homer_ops = &pnv_power9_homer_ops; /* TODO */
+ homer->core_max_base = PNV9_CORE_MAX_BASE;
+}
+
+static const TypeInfo pnv_homer_power10_type_info = {
+ .name = TYPE_PNV10_HOMER,
+ .parent = TYPE_PNV_HOMER,
+ .instance_size = sizeof(PnvHomer),
+ .class_init = pnv_homer_power10_class_init,
+};
+
static void pnv_homer_realize(DeviceState *dev, Error **errp)
{
PnvHomer *homer = PNV_HOMER(dev);
@@ -377,6 +440,7 @@ static void pnv_homer_register_types(void)
type_register_static(&pnv_homer_type_info);
type_register_static(&pnv_homer_power8_type_info);
type_register_static(&pnv_homer_power9_type_info);
+ type_register_static(&pnv_homer_power10_type_info);
}
type_init(pnv_homer_register_types);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 15/26] ppc/pnv: Add a HOMER model to POWER10
2021-08-09 13:45 ` [PATCH 15/26] ppc/pnv: Add a HOMER model to POWER10 Cédric Le Goater
@ 2021-08-25 6:12 ` David Gibson
0 siblings, 0 replies; 49+ messages in thread
From: David Gibson @ 2021-08-25 6:12 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 7752 bytes --]
On Mon, Aug 09, 2021 at 03:45:36PM +0200, Cédric Le Goater wrote:
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> include/hw/ppc/pnv.h | 10 ++++++
> include/hw/ppc/pnv_homer.h | 3 ++
> include/hw/ppc/pnv_xscom.h | 3 ++
> hw/ppc/pnv.c | 20 ++++++++++++
> hw/ppc/pnv_homer.c | 64 ++++++++++++++++++++++++++++++++++++++
> 5 files changed, 100 insertions(+)
>
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index f44b9947d00e..3ea2d798eed1 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -128,6 +128,7 @@ struct Pnv10Chip {
> Pnv9Psi psi;
> PnvLpcController lpc;
> PnvOCC occ;
> + PnvHomer homer;
>
> uint32_t nr_quads;
> PnvQuad *quads;
> @@ -358,4 +359,13 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor);
> #define PNV10_XIVE2_END_SIZE 0x0000020000000000ull
> #define PNV10_XIVE2_END_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006060000000000ull)
>
> +#define PNV10_OCC_COMMON_AREA_SIZE 0x0000000000800000ull
> +#define PNV10_OCC_COMMON_AREA_BASE 0x300fff800000ull
> +#define PNV10_OCC_SENSOR_BASE(chip) (PNV10_OCC_COMMON_AREA_BASE + \
> + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id))
> +
> +#define PNV10_HOMER_SIZE 0x0000000000400000ull
> +#define PNV10_HOMER_BASE(chip) \
> + (0x300ffd800000ll + ((uint64_t)(chip)->chip_id) * PNV10_HOMER_SIZE)
> +
> #endif /* PPC_PNV_H */
> diff --git a/include/hw/ppc/pnv_homer.h b/include/hw/ppc/pnv_homer.h
> index 1889e3083c57..07e8b193116e 100644
> --- a/include/hw/ppc/pnv_homer.h
> +++ b/include/hw/ppc/pnv_homer.h
> @@ -32,6 +32,9 @@ DECLARE_INSTANCE_CHECKER(PnvHomer, PNV8_HOMER,
> #define TYPE_PNV9_HOMER TYPE_PNV_HOMER "-POWER9"
> DECLARE_INSTANCE_CHECKER(PnvHomer, PNV9_HOMER,
> TYPE_PNV9_HOMER)
> +#define TYPE_PNV10_HOMER TYPE_PNV_HOMER "-POWER10"
> +DECLARE_INSTANCE_CHECKER(PnvHomer, PNV10_HOMER,
> + TYPE_PNV10_HOMER)
>
> struct PnvHomer {
> DeviceState parent;
> diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
> index 75db33d46af6..7c7440de0c40 100644
> --- a/include/hw/ppc/pnv_xscom.h
> +++ b/include/hw/ppc/pnv_xscom.h
> @@ -134,6 +134,9 @@ struct PnvXScomInterfaceClass {
> #define PNV10_XSCOM_OCC_BASE PNV9_XSCOM_OCC_BASE
> #define PNV10_XSCOM_OCC_SIZE PNV9_XSCOM_OCC_SIZE
>
> +#define PNV10_XSCOM_PBA_BASE 0x01010CDA
> +#define PNV10_XSCOM_PBA_SIZE 0x40
> +
> #define PNV10_XSCOM_XIVE2_BASE 0x2010800
> #define PNV10_XSCOM_XIVE2_SIZE 0x400
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 125466023148..2d7eade23ccc 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1614,6 +1614,7 @@ static void pnv_chip_power10_instance_init(Object *obj)
> object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
> object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
> object_initialize_child(obj, "occ", &chip10->occ, TYPE_PNV10_OCC);
> + object_initialize_child(obj, "homer", &chip10->homer, TYPE_PNV10_HOMER);
>
> for (i = 0; i < PNV10_CHIP_MAX_PEC; i++) {
> object_initialize_child(obj, "pec[*]", &chip10->pecs[i],
> @@ -1797,6 +1798,25 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
> &chip10->occ.xscom_regs);
>
> + /* OCC SRAM model */
> + memory_region_add_subregion(get_system_memory(),
> + PNV10_OCC_SENSOR_BASE(chip),
> + &chip10->occ.sram_regs);
> +
> + /* HOMER */
> + object_property_set_link(OBJECT(&chip10->homer), "chip", OBJECT(chip),
> + &error_abort);
> + if (!qdev_realize(DEVICE(&chip10->homer), NULL, errp)) {
> + return;
> + }
> + /* Homer Xscom region */
> + pnv_xscom_add_subregion(chip, PNV10_XSCOM_PBA_BASE,
> + &chip10->homer.pba_regs);
> +
> + /* Homer mmio region */
> + memory_region_add_subregion(get_system_memory(), PNV10_HOMER_BASE(chip),
> + &chip10->homer.regs);
> +
> /* PHBs */
> pnv_chip_power10_phb_realize(chip, &local_err);
> if (local_err) {
> diff --git a/hw/ppc/pnv_homer.c b/hw/ppc/pnv_homer.c
> index 9a262629b73a..ea73919e54ca 100644
> --- a/hw/ppc/pnv_homer.c
> +++ b/hw/ppc/pnv_homer.c
> @@ -332,6 +332,69 @@ static const TypeInfo pnv_homer_power9_type_info = {
> .class_init = pnv_homer_power9_class_init,
> };
>
> +static uint64_t pnv_homer_power10_pba_read(void *opaque, hwaddr addr,
> + unsigned size)
> +{
> + PnvHomer *homer = PNV_HOMER(opaque);
> + PnvChip *chip = homer->chip;
> + uint32_t reg = addr >> 3;
> + uint64_t val = 0;
> +
> + switch (reg) {
> + case PBA_BAR0:
> + val = PNV10_HOMER_BASE(chip);
> + break;
> + case PBA_BARMASK0: /* P10 homer region mask */
> + val = (PNV10_HOMER_SIZE - 1) & 0x300000;
> + break;
> + case PBA_BAR2: /* P10 occ common area */
> + val = PNV10_OCC_COMMON_AREA_BASE;
> + break;
> + case PBA_BARMASK2: /* P10 occ common area size */
> + val = (PNV10_OCC_COMMON_AREA_SIZE - 1) & 0x700000;
> + break;
> + default:
> + qemu_log_mask(LOG_UNIMP, "PBA: read to unimplemented register: Ox%"
> + HWADDR_PRIx "\n", addr >> 3);
> + }
> + return val;
> +}
> +
> +static void pnv_homer_power10_pba_write(void *opaque, hwaddr addr,
> + uint64_t val, unsigned size)
> +{
> + qemu_log_mask(LOG_UNIMP, "PBA: write to unimplemented register: Ox%"
> + HWADDR_PRIx "\n", addr >> 3);
> +}
> +
> +static const MemoryRegionOps pnv_homer_power10_pba_ops = {
> + .read = pnv_homer_power10_pba_read,
> + .write = pnv_homer_power10_pba_write,
> + .valid.min_access_size = 8,
> + .valid.max_access_size = 8,
> + .impl.min_access_size = 8,
> + .impl.max_access_size = 8,
> + .endianness = DEVICE_BIG_ENDIAN,
> +};
> +
> +static void pnv_homer_power10_class_init(ObjectClass *klass, void *data)
> +{
> + PnvHomerClass *homer = PNV_HOMER_CLASS(klass);
> +
> + homer->pba_size = PNV10_XSCOM_PBA_SIZE;
> + homer->pba_ops = &pnv_homer_power10_pba_ops;
> + homer->homer_size = PNV10_HOMER_SIZE;
> + homer->homer_ops = &pnv_power9_homer_ops; /* TODO */
> + homer->core_max_base = PNV9_CORE_MAX_BASE;
> +}
> +
> +static const TypeInfo pnv_homer_power10_type_info = {
> + .name = TYPE_PNV10_HOMER,
> + .parent = TYPE_PNV_HOMER,
> + .instance_size = sizeof(PnvHomer),
> + .class_init = pnv_homer_power10_class_init,
> +};
> +
> static void pnv_homer_realize(DeviceState *dev, Error **errp)
> {
> PnvHomer *homer = PNV_HOMER(dev);
> @@ -377,6 +440,7 @@ static void pnv_homer_register_types(void)
> type_register_static(&pnv_homer_type_info);
> type_register_static(&pnv_homer_power8_type_info);
> type_register_static(&pnv_homer_power9_type_info);
> + type_register_static(&pnv_homer_power10_type_info);
> }
>
> type_init(pnv_homer_register_types);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* [PATCH 16/26] ppc/psi: Add support for StoreEOI and 64k ESB pages (POWER10)
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (14 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 15/26] ppc/pnv: Add a HOMER model to POWER10 Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 17/26] ppc/xive2: Add support for notification injection on ESB pages Cédric Le Goater
` (11 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
POWER10 adds support for StoreEOI operation and 64K ESB pages on PSIHB
to be consistent with the other interrupt sources of the system.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/ppc/pnv.c | 6 ++++++
hw/ppc/pnv_psi.c | 30 ++++++++++++++++++++++++------
2 files changed, 30 insertions(+), 6 deletions(-)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 2d7eade23ccc..836147d81e1c 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1519,6 +1519,9 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
/* Processor Service Interface (PSI) Host Bridge */
object_property_set_int(OBJECT(&chip9->psi), "bar", PNV9_PSIHB_BASE(chip),
&error_fatal);
+ /* This is the only device with 4k ESB pages */
+ object_property_set_int(OBJECT(&chip9->psi), "shift", XIVE_ESB_4K,
+ &error_fatal);
if (!qdev_realize(DEVICE(&chip9->psi), NULL, errp)) {
return;
}
@@ -1770,6 +1773,9 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
/* Processor Service Interface (PSI) Host Bridge */
object_property_set_int(OBJECT(&chip10->psi), "bar",
PNV10_PSIHB_BASE(chip), &error_fatal);
+ /* PSI can now be configured to use 64k ESB pages on POWER10 */
+ object_property_set_int(OBJECT(&chip10->psi), "shift", XIVE_ESB_64K,
+ &error_fatal);
if (!qdev_realize(DEVICE(&chip10->psi), NULL, errp)) {
return;
}
diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index cd9a2c5952a6..737486046d5a 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -601,7 +601,6 @@ static const TypeInfo pnv_psi_power8_info = {
#define PSIHB9_IRQ_METHOD PPC_BIT(0)
#define PSIHB9_IRQ_RESET PPC_BIT(1)
#define PSIHB9_ESB_CI_BASE 0x60
-#define PSIHB9_ESB_CI_64K PPC_BIT(1)
#define PSIHB9_ESB_CI_ADDR_MASK PPC_BITMASK(8, 47)
#define PSIHB9_ESB_CI_VALID PPC_BIT(63)
#define PSIHB9_ESB_NOTIF_ADDR 0x68
@@ -646,6 +645,14 @@ static const TypeInfo pnv_psi_power8_info = {
#define PSIHB9_IRQ_STAT_DIO PPC_BIT(12)
#define PSIHB9_IRQ_STAT_PSU PPC_BIT(13)
+/* P10 register extensions */
+
+#define PSIHB10_CR PSIHB9_CR
+#define PSIHB10_CR_STORE_EOI PPC_BIT(12)
+
+#define PSIHB10_ESB_CI_BASE PSIHB9_ESB_CI_BASE
+#define PSIHB10_ESB_CI_64K PPC_BIT(1)
+
static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno)
{
PnvPsi *psi = PNV_PSI(xf);
@@ -704,6 +711,13 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
switch (addr) {
case PSIHB9_CR:
+ if (val & PSIHB10_CR_STORE_EOI) {
+ psi9->source.esb_flags |= XIVE_SRC_STORE_EOI;
+ } else {
+ psi9->source.esb_flags &= ~XIVE_SRC_STORE_EOI;
+ }
+ break;
+
case PSIHB9_SEMR:
/* FSP stuff */
break;
@@ -715,15 +729,20 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
break;
case PSIHB9_ESB_CI_BASE:
+ if (val & PSIHB10_ESB_CI_64K) {
+ psi9->source.esb_shift = XIVE_ESB_64K;
+ } else {
+ psi9->source.esb_shift = XIVE_ESB_4K;
+ }
if (!(val & PSIHB9_ESB_CI_VALID)) {
if (psi->regs[reg] & PSIHB9_ESB_CI_VALID) {
memory_region_del_subregion(sysmem, &psi9->source.esb_mmio);
}
} else {
if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) {
- memory_region_add_subregion(sysmem,
- val & ~PSIHB9_ESB_CI_VALID,
- &psi9->source.esb_mmio);
+ hwaddr addr = val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K);
+ memory_region_add_subregion(sysmem, addr,
+ &psi9->source.esb_mmio);
}
}
psi->regs[reg] = val;
@@ -831,6 +850,7 @@ static void pnv_psi_power9_instance_init(Object *obj)
Pnv9Psi *psi = PNV9_PSI(obj);
object_initialize_child(obj, "source", &psi->source, TYPE_XIVE_SOURCE);
+ object_property_add_alias(obj, "shift", OBJECT(&psi->source), "shift");
}
static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
@@ -839,8 +859,6 @@ static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
XiveSource *xsrc = &PNV9_PSI(psi)->source;
int i;
- /* This is the only device with 4k ESB pages */
- object_property_set_int(OBJECT(xsrc), "shift", XIVE_ESB_4K, &error_fatal);
object_property_set_int(OBJECT(xsrc), "nr-irqs", PSIHB9_NUM_IRQS,
&error_fatal);
object_property_set_link(OBJECT(xsrc), "xive", OBJECT(psi), &error_abort);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 17/26] ppc/xive2: Add support for notification injection on ESB pages
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (15 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 16/26] ppc/psi: Add support for StoreEOI and 64k ESB pages (POWER10) Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 18/26] ppc/xive: Add support for PQ state bits offload Cédric Le Goater
` (10 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
This is an internal offset used to inject triggers when the PQ state
bits are not controlled locally. Such as for LSIs when the PHB5 are
using the Address-Based Interrupt Trigger mode and on the END.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive.h | 1 +
hw/intc/xive.c | 9 +++++++++
hw/intc/xive2.c | 10 ++++++++++
3 files changed, 20 insertions(+)
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index db7641165484..33a52963cb12 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -278,6 +278,7 @@ uint8_t xive_esb_set(uint8_t *pq, uint8_t value);
#define XIVE_ESB_STORE_EOI 0x400 /* Store */
#define XIVE_ESB_LOAD_EOI 0x000 /* Load */
#define XIVE_ESB_GET 0x800 /* Load */
+#define XIVE_ESB_INJECT 0x800 /* Store */
#define XIVE_ESB_SET_PQ_00 0xc00 /* Load */
#define XIVE_ESB_SET_PQ_01 0xd00 /* Load */
#define XIVE_ESB_SET_PQ_10 0xe00 /* Load */
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index b817ee8e3704..5ecd0bb21c31 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -1077,6 +1077,15 @@ static void xive_source_esb_write(void *opaque, hwaddr addr,
notify = xive_source_esb_eoi(xsrc, srcno);
break;
+ /*
+ * This is an internal offset used to inject triggers when the PQ
+ * state bits are not controlled locally. Such as for LSIs when
+ * under ABT mode.
+ */
+ case XIVE_ESB_INJECT ... XIVE_ESB_INJECT + 0x3FF:
+ notify = true;
+ break;
+
case XIVE_ESB_SET_PQ_00 ... XIVE_ESB_SET_PQ_00 + 0x0FF:
case XIVE_ESB_SET_PQ_01 ... XIVE_ESB_SET_PQ_01 + 0x0FF:
case XIVE_ESB_SET_PQ_10 ... XIVE_ESB_SET_PQ_10 + 0x0FF:
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 55400628467b..775b9199a5b1 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -669,6 +669,16 @@ static void xive2_end_source_write(void *opaque, hwaddr addr,
notify = xive_esb_eoi(&pq);
break;
+ case XIVE_ESB_INJECT ... XIVE_ESB_INJECT + 0x3FF:
+ if (end_esmask == END2_W1_ESe) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "XIVE: END %x/%x can not EQ inject on ESe\n",
+ end_blk, end_idx);
+ return;
+ }
+ notify = true;
+ break;
+
default:
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid END ESB write addr %d\n",
offset);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 18/26] ppc/xive: Add support for PQ state bits offload
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (16 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 17/26] ppc/xive2: Add support for notification injection on ESB pages Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 19/26] ppc/pnv: Add support for PQ offload on PHB5 Cédric Le Goater
` (9 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The trigger message coming from a HW source contains a special bit
informing the XIVE interrupt controller that the PQ bits have been
checked at the source or not. Depending on the value, the IC can
perform the check and the state transition locally using its own PQ
state bits.
The following changes add new accessors to the XiveRouter required to
query and update the PQ state bits. This only applies to the PowerNV
machine. sPAPR accessors are provided but the pSeries machine should
not be concerned by such complex configuration for the moment.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive.h | 8 +++++--
include/hw/ppc/xive2.h | 6 +++++-
hw/intc/pnv_xive.c | 37 +++++++++++++++++++++++++++++---
hw/intc/pnv_xive2.c | 37 +++++++++++++++++++++++++++++---
hw/intc/spapr_xive.c | 25 ++++++++++++++++++++++
hw/intc/xive.c | 48 ++++++++++++++++++++++++++++++++++++------
hw/intc/xive2.c | 42 +++++++++++++++++++++++++++++++++++-
hw/pci-host/pnv_phb4.c | 9 ++++++--
hw/ppc/pnv_psi.c | 8 +++++--
9 files changed, 199 insertions(+), 21 deletions(-)
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 33a52963cb12..ef5992c6f05b 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -160,7 +160,7 @@ DECLARE_CLASS_CHECKERS(XiveNotifierClass, XIVE_NOTIFIER,
struct XiveNotifierClass {
InterfaceClass parent;
- void (*notify)(XiveNotifier *xn, uint32_t lisn);
+ void (*notify)(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
};
/*
@@ -357,6 +357,10 @@ struct XiveRouterClass {
/* XIVE table accessors */
int (*get_eas)(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
XiveEAS *eas);
+ int (*get_pq)(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq);
+ int (*set_pq)(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq);
int (*get_end)(XiveRouter *xrtr, uint8_t end_blk, uint32_t end_idx,
XiveEND *end);
int (*write_end)(XiveRouter *xrtr, uint8_t end_blk, uint32_t end_idx,
@@ -378,7 +382,7 @@ int xive_router_get_nvt(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
XiveNVT *nvt);
int xive_router_write_nvt(XiveRouter *xrtr, uint8_t nvt_blk, uint32_t nvt_idx,
XiveNVT *nvt, uint8_t word_number);
-void xive_router_notify(XiveNotifier *xn, uint32_t lisn);
+void xive_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
/*
* XIVE Presenter
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index 8a74fa7e4c7e..082222d978bb 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -36,6 +36,10 @@ typedef struct Xive2RouterClass {
/* XIVE table accessors */
int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
Xive2Eas *eas);
+ int (*get_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq);
+ int (*set_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq);
int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end);
int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
@@ -58,7 +62,7 @@ int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp, uint8_t word_number);
-void xive2_router_notify(XiveNotifier *xn, uint32_t lisn);
+void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
/*
* XIVE2 Presenter (POWER10)
diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c
index ad43483612e5..5022f85350f4 100644
--- a/hw/intc/pnv_xive.c
+++ b/hw/intc/pnv_xive.c
@@ -393,6 +393,34 @@ static int pnv_xive_get_eas(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
return pnv_xive_vst_read(xive, VST_TSEL_IVT, blk, idx, eas);
}
+static int pnv_xive_get_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive *xive = PNV_XIVE(xrtr);
+
+ if (pnv_xive_block_id(xive) != blk) {
+ xive_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_get(&xive->ipi_source, idx);
+ return 0;
+}
+
+static int pnv_xive_set_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive *xive = PNV_XIVE(xrtr);
+
+ if (pnv_xive_block_id(xive) != blk) {
+ xive_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_set(&xive->ipi_source, idx, *pq);
+ return 0;
+}
+
/*
* One bit per thread id. The first register PC_THREAD_EN_REG0 covers
* the first cores 0-15 (normal) of the chip or 0-7 (fused). The
@@ -489,12 +517,12 @@ static PnvXive *pnv_xive_tm_get_xive(PowerPCCPU *cpu)
* event notification to the Router. This is required on a multichip
* system.
*/
-static void pnv_xive_notify(XiveNotifier *xn, uint32_t srcno)
+static void pnv_xive_notify(XiveNotifier *xn, uint32_t srcno, bool pq_checked)
{
PnvXive *xive = PNV_XIVE(xn);
uint8_t blk = pnv_xive_block_id(xive);
- xive_router_notify(xn, XIVE_EAS(blk, srcno));
+ xive_router_notify(xn, XIVE_EAS(blk, srcno), pq_checked);
}
/*
@@ -1336,7 +1364,8 @@ static void pnv_xive_ic_hw_trigger(PnvXive *xive, hwaddr addr, uint64_t val)
blk = XIVE_EAS_BLOCK(val);
idx = XIVE_EAS_INDEX(val);
- xive_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx));
+ xive_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx),
+ !!(val & XIVE_TRIGGER_PQ));
}
static void pnv_xive_ic_notify_write(void *opaque, hwaddr addr, uint64_t val,
@@ -1956,6 +1985,8 @@ static void pnv_xive_class_init(ObjectClass *klass, void *data)
device_class_set_props(dc, pnv_xive_properties);
xrc->get_eas = pnv_xive_get_eas;
+ xrc->get_pq = pnv_xive_get_pq;
+ xrc->set_pq = pnv_xive_set_pq;
xrc->get_end = pnv_xive_get_end;
xrc->write_end = pnv_xive_write_end;
xrc->get_nvt = pnv_xive_get_nvt;
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index b9abd022cf08..186ab66e105d 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -284,6 +284,34 @@ static int pnv_xive2_vst_write(PnvXive2 *xive, uint32_t type, uint8_t blk,
return 0;
}
+static int pnv_xive2_get_pq(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+
+ if (pnv_xive2_block_id(xive) != blk) {
+ xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_get(&xive->ipi_source, idx);
+ return 0;
+}
+
+static int pnv_xive2_set_pq(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+
+ if (pnv_xive2_block_id(xive) != blk) {
+ xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_set(&xive->ipi_source, idx, *pq);
+ return 0;
+}
+
static int pnv_xive2_get_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
Xive2End *end)
{
@@ -486,12 +514,12 @@ static PnvXive2 *pnv_xive2_tm_get_xive(PowerPCCPU *cpu)
* source interrupt number before forwarding the source event
* notification to the Router. This is required on a multichip system.
*/
-static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno)
+static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno, bool pq_checked)
{
PnvXive2 *xive = PNV_XIVE2(xn);
uint8_t blk = pnv_xive2_block_id(xive);
- xive2_router_notify(xn, XIVE_EAS(blk, srcno));
+ xive2_router_notify(xn, XIVE_EAS(blk, srcno), pq_checked);
}
/*
@@ -1380,7 +1408,8 @@ static void pnv_xive2_ic_hw_trigger(PnvXive2 *xive, hwaddr addr,
blk = XIVE_EAS_BLOCK(val);
idx = XIVE_EAS_INDEX(val);
- xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx));
+ xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx),
+ !!(val & XIVE_TRIGGER_PQ));
}
static void pnv_xive2_ic_notify_write(void *opaque, hwaddr offset,
@@ -1879,6 +1908,8 @@ static void pnv_xive2_class_init(ObjectClass *klass, void *data)
device_class_set_props(dc, pnv_xive2_properties);
xrc->get_eas = pnv_xive2_get_eas;
+ xrc->get_pq = pnv_xive2_get_pq;
+ xrc->set_pq = pnv_xive2_set_pq;
xrc->get_end = pnv_xive2_get_end;
xrc->write_end = pnv_xive2_write_end;
xrc->get_nvp = pnv_xive2_get_nvp;
diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 89cfa018f598..d203f98fc766 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -480,6 +480,29 @@ static uint8_t spapr_xive_get_block_id(XiveRouter *xrtr)
return SPAPR_XIVE_BLOCK_ID;
}
+static int spapr_xive_get_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ SpaprXive *xive = SPAPR_XIVE(xrtr);
+
+ assert(SPAPR_XIVE_BLOCK_ID == blk);
+
+ *pq = xive_source_esb_get(&xive->source, idx);
+ return 0;
+}
+
+static int spapr_xive_set_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ SpaprXive *xive = SPAPR_XIVE(xrtr);
+
+ assert(SPAPR_XIVE_BLOCK_ID == blk);
+
+ *pq = xive_source_esb_set(&xive->source, idx, *pq);
+ return 0;
+}
+
+
static const VMStateDescription vmstate_spapr_xive_end = {
.name = TYPE_SPAPR_XIVE "/end",
.version_id = 1,
@@ -788,6 +811,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
dc->vmsd = &vmstate_spapr_xive;
xrc->get_eas = spapr_xive_get_eas;
+ xrc->get_pq = spapr_xive_get_pq;
+ xrc->set_pq = spapr_xive_set_pq;
xrc->get_end = spapr_xive_get_end;
xrc->write_end = spapr_xive_write_end;
xrc->get_nvt = spapr_xive_get_nvt;
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 5ecd0bb21c31..7ac0c1816c86 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -954,7 +954,7 @@ static void xive_source_notify(XiveSource *xsrc, int srcno)
XiveNotifierClass *xnc = XIVE_NOTIFIER_GET_CLASS(xsrc->xive);
if (xnc->notify) {
- xnc->notify(xsrc->xive, srcno);
+ xnc->notify(xsrc->xive, srcno, true);
}
}
@@ -1385,6 +1385,24 @@ int xive_router_get_eas(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
}
+static
+int xive_router_get_pq(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
+static
+int xive_router_set_pq(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->set_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
int xive_router_get_end(XiveRouter *xrtr, uint8_t end_blk, uint32_t end_idx,
XiveEND *end)
{
@@ -1734,7 +1752,7 @@ do_escalation:
xive_get_field32(END_W5_ESC_END_DATA, end.w5));
}
-void xive_router_notify(XiveNotifier *xn, uint32_t lisn)
+void xive_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked)
{
XiveRouter *xrtr = XIVE_ROUTER(xn);
uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
@@ -1747,11 +1765,27 @@ void xive_router_notify(XiveNotifier *xn, uint32_t lisn)
return;
}
- /*
- * The IVRE checks the State Bit Cache at this point. We skip the
- * SBC lookup because the state bits of the sources are modeled
- * internally in QEMU.
- */
+ if (!pq_checked) {
+ bool notify;
+ uint8_t pq;
+
+ /* PQ cache lookup */
+ if (xive_router_get_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ notify = xive_esb_trigger(&pq);
+
+ if (xive_router_set_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ if (!notify) {
+ return;
+ }
+ }
if (!xive_eas_is_valid(&eas)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid LISN %x\n", lisn);
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 775b9199a5b1..8243391e8c09 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -181,6 +181,24 @@ int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
}
+static
+int xive2_router_get_pq(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
+static
+int xive2_router_set_pq(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->set_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end)
{
@@ -490,7 +508,7 @@ do_escalation:
xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
}
-void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
+void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked)
{
Xive2Router *xrtr = XIVE2_ROUTER(xn);
uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
@@ -503,6 +521,28 @@ void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
return;
}
+ if (!pq_checked) {
+ bool notify;
+ uint8_t pq;
+
+ /* PQ cache lookup */
+ if (xive2_router_get_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ notify = xive_esb_trigger(&pq);
+
+ if (xive2_router_set_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ if (!notify) {
+ return;
+ }
+ }
+
if (!xive2_eas_is_valid(&eas)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
return;
diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 5c375a9f285d..3edd5845ebde 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1250,14 +1250,19 @@ static const char *pnv_phb4_root_bus_path(PCIHostState *host_bridge,
return phb->bus_path;
}
-static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno)
+static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno,
+ bool pq_checked)
{
PnvPHB4 *phb = PNV_PHB4(xf);
uint64_t notif_port = phb->regs[PHB_INT_NOTIFY_ADDR >> 3];
uint32_t offset = phb->regs[PHB_INT_NOTIFY_INDEX >> 3];
- uint64_t data = XIVE_TRIGGER_PQ | offset | srcno;
+ uint64_t data = offset | srcno;
MemTxResult result;
+ if (pq_checked) {
+ data |= XIVE_TRIGGER_PQ;
+ }
+
trace_pnv_phb4_xive_notify(notif_port, data);
address_space_stq_be(&address_space_memory, notif_port, data,
diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 737486046d5a..466fb7979887 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -653,7 +653,7 @@ static const TypeInfo pnv_psi_power8_info = {
#define PSIHB10_ESB_CI_BASE PSIHB9_ESB_CI_BASE
#define PSIHB10_ESB_CI_64K PPC_BIT(1)
-static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno)
+static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno, bool pq_checked)
{
PnvPsi *psi = PNV_PSI(xf);
uint64_t notif_port = psi->regs[PSIHB_REG(PSIHB9_ESB_NOTIF_ADDR)];
@@ -662,9 +662,13 @@ static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno)
uint32_t offset =
(psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT);
- uint64_t data = XIVE_TRIGGER_PQ | offset | srcno;
+ uint64_t data = offset | srcno;
MemTxResult result;
+ if (pq_checked) {
+ data |= XIVE_TRIGGER_PQ;
+ }
+
if (!valid) {
return;
}
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 19/26] ppc/pnv: Add support for PQ offload on PHB5
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (17 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 18/26] ppc/xive: Add support for PQ state bits offload Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 20/26] ppc/pnv: Add support for PHB5 "Address-based trigger" mode Cédric Le Goater
` (8 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The PQ_disable configuration bit disables the check done on the PQ
state bits when processing new MSI interrupts. When bit 9 is enabled,
the PHB forwards any MSI trigger to the XIVE interrupt controller
without checking the PQ state bits. The XIVE IC knows from the trigger
message that the PQ bits have not been checked and performs the check
locally.
This configuration bit only applies to MSIs and LSIs are still checked
on the PHB to handle the assertion level.
PQ_disable enablement is a requirement for StoreEOI.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/pci-host/pnv_phb4_regs.h | 1 +
include/hw/ppc/xive.h | 1 +
hw/intc/xive.c | 22 +++++++++++++++++++++-
hw/pci-host/pnv_phb4.c | 9 +++++++++
4 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/include/hw/pci-host/pnv_phb4_regs.h b/include/hw/pci-host/pnv_phb4_regs.h
index 55df2c3e5ece..64f326b7158e 100644
--- a/include/hw/pci-host/pnv_phb4_regs.h
+++ b/include/hw/pci-host/pnv_phb4_regs.h
@@ -225,6 +225,7 @@
/* Fundamental register set B */
#define PHB_VERSION 0x800
#define PHB_CTRLR 0x810
+#define PHB_CTRLR_IRQ_PQ_DISABLE PPC_BIT(9) /* P10 */
#define PHB_CTRLR_IRQ_PGSZ_64K PPC_BIT(11)
#define PHB_CTRLR_IRQ_STORE_EOI PPC_BIT(12)
#define PHB_CTRLR_MMIO_RD_STRICT PPC_BIT(13)
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index ef5992c6f05b..e0215c79e312 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -176,6 +176,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(XiveSource, XIVE_SOURCE)
*/
#define XIVE_SRC_H_INT_ESB 0x1 /* ESB managed with hcall H_INT_ESB */
#define XIVE_SRC_STORE_EOI 0x2 /* Store EOI supported */
+#define XIVE_SRC_PQ_DISABLE 0x4 /* Disable check on the PQ state bits */
struct XiveSource {
DeviceState parent;
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 7ac0c1816c86..633f3e5cd8f4 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -902,6 +902,16 @@ static bool xive_source_lsi_trigger(XiveSource *xsrc, uint32_t srcno)
}
}
+/*
+ * Sources can be configured with PQ offloading in which case the check
+ * on the PQ state bits of MSIs is disabled
+ */
+static bool xive_source_esb_disabled(XiveSource *xsrc, uint32_t srcno)
+{
+ return (xsrc->esb_flags & XIVE_SRC_PQ_DISABLE) &&
+ !xive_source_irq_is_lsi(xsrc, srcno);
+}
+
/*
* Returns whether the event notification should be forwarded.
*/
@@ -911,6 +921,10 @@ static bool xive_source_esb_trigger(XiveSource *xsrc, uint32_t srcno)
assert(srcno < xsrc->nr_irqs);
+ if (xive_source_esb_disabled(xsrc, srcno)) {
+ return true;
+ }
+
ret = xive_esb_trigger(&xsrc->status[srcno]);
if (xive_source_irq_is_lsi(xsrc, srcno) &&
@@ -931,6 +945,11 @@ static bool xive_source_esb_eoi(XiveSource *xsrc, uint32_t srcno)
assert(srcno < xsrc->nr_irqs);
+ if (xive_source_esb_disabled(xsrc, srcno)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid EOI for IRQ %d\n", srcno);
+ return false;
+ }
+
ret = xive_esb_eoi(&xsrc->status[srcno]);
/*
@@ -952,9 +971,10 @@ static bool xive_source_esb_eoi(XiveSource *xsrc, uint32_t srcno)
static void xive_source_notify(XiveSource *xsrc, int srcno)
{
XiveNotifierClass *xnc = XIVE_NOTIFIER_GET_CLASS(xsrc->xive);
+ bool pq_checked = !xive_source_esb_disabled(xsrc, srcno);
if (xnc->notify) {
- xnc->notify(xsrc->xive, srcno, true);
+ xnc->notify(xsrc->xive, srcno, pq_checked);
}
}
diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 3edd5845ebde..cf506d1623c3 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -475,6 +475,15 @@ static void pnv_phb4_update_xsrc(PnvPHB4 *phb)
flags = 0;
}
+ /*
+ * When the PQ disable configuration bit is set, the check on the
+ * PQ state bits is disabled on the PHB side (for MSI only) and it
+ * is performed on the IC side instead.
+ */
+ if (phb->regs[PHB_CTRLR >> 3] & PHB_CTRLR_IRQ_PQ_DISABLE) {
+ flags |= XIVE_SRC_PQ_DISABLE;
+ }
+
phb->xsrc.esb_shift = shift;
phb->xsrc.esb_flags = flags;
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 20/26] ppc/pnv: Add support for PHB5 "Address-based trigger" mode
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (18 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 19/26] ppc/pnv: Add support for PQ offload on PHB5 Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 21/26] pnv/xive2: Introduce new capability bits Cédric Le Goater
` (7 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
When the Address-Based Interrupt Trigger mode is activated, the PHB
maps the interrupt source number into the interrupt command address.
The PHB directly triggers the IC ESB page of the interrupt number and
not the notify page of the IC anymore.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/pci-host/pnv_phb4_regs.h | 2 +
hw/pci-host/pnv_phb4.c | 73 ++++++++++++++++++++++++++---
hw/pci-host/trace-events | 2 +
3 files changed, 71 insertions(+), 6 deletions(-)
diff --git a/include/hw/pci-host/pnv_phb4_regs.h b/include/hw/pci-host/pnv_phb4_regs.h
index 64f326b7158e..4a0d3b28efb3 100644
--- a/include/hw/pci-host/pnv_phb4_regs.h
+++ b/include/hw/pci-host/pnv_phb4_regs.h
@@ -220,12 +220,14 @@
#define PHB_PAPR_ERR_INJ_MASK_MMIO PPC_BITMASK(16, 63)
#define PHB_ETU_ERR_SUMMARY 0x2c8
#define PHB_INT_NOTIFY_ADDR 0x300
+#define PHB_INT_NOTIFY_ADDR_64K PPC_BIT(1) /* P10 */
#define PHB_INT_NOTIFY_INDEX 0x308
/* Fundamental register set B */
#define PHB_VERSION 0x800
#define PHB_CTRLR 0x810
#define PHB_CTRLR_IRQ_PQ_DISABLE PPC_BIT(9) /* P10 */
+#define PHB_CTRLR_IRQ_ABT_MODE PPC_BIT(10) /* P10 */
#define PHB_CTRLR_IRQ_PGSZ_64K PPC_BIT(11)
#define PHB_CTRLR_IRQ_STORE_EOI PPC_BIT(12)
#define PHB_CTRLR_MMIO_RD_STRICT PPC_BIT(13)
diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index cf506d1623c3..353ce6617743 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1259,10 +1259,54 @@ static const char *pnv_phb4_root_bus_path(PCIHostState *host_bridge,
return phb->bus_path;
}
-static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno,
- bool pq_checked)
+/*
+ * Address base trigger mode (POWER10)
+ *
+ * Trigger directly the IC ESB page
+ */
+static void pnv_phb4_xive_notify_abt(PnvPHB4 *phb, uint32_t srcno,
+ bool pq_checked)
+{
+ uint64_t notif_port = phb->regs[PHB_INT_NOTIFY_ADDR >> 3];
+ uint64_t data = 0; /* trigger data : don't care */
+ hwaddr addr;
+ MemTxResult result;
+ int esb_shift;
+
+ if (notif_port & PHB_INT_NOTIFY_ADDR_64K) {
+ esb_shift = 16;
+ } else {
+ esb_shift = 12;
+ }
+
+ /* Compute the address of the IC ESB management page */
+ addr = (notif_port & ~PHB_INT_NOTIFY_ADDR_64K);
+ addr |= (1ull << (esb_shift + 1)) * srcno;
+ addr |= (1ull << esb_shift);
+
+ /*
+ * When the PQ state bits are checked on the PHB, the associated
+ * PQ state bits on the IC should be ignored. Use the unconditional
+ * trigger offset to inject a trigger on the IC. This is always
+ * the case for LSIs
+ */
+ if (pq_checked) {
+ addr |= XIVE_ESB_INJECT;
+ }
+
+ trace_pnv_phb4_xive_notify_ic(addr, data);
+
+ address_space_stq_be(&address_space_memory, addr, data,
+ MEMTXATTRS_UNSPECIFIED, &result);
+ if (result != MEMTX_OK) {
+ phb_error(phb, "trigger failed @%"HWADDR_PRIx "\n", addr);
+ return;
+ }
+}
+
+static void pnv_phb4_xive_notify_ic(PnvPHB4 *phb, uint32_t srcno,
+ bool pq_checked)
{
- PnvPHB4 *phb = PNV_PHB4(xf);
uint64_t notif_port = phb->regs[PHB_INT_NOTIFY_ADDR >> 3];
uint32_t offset = phb->regs[PHB_INT_NOTIFY_INDEX >> 3];
uint64_t data = offset | srcno;
@@ -1272,7 +1316,7 @@ static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno,
data |= XIVE_TRIGGER_PQ;
}
- trace_pnv_phb4_xive_notify(notif_port, data);
+ trace_pnv_phb4_xive_notify_ic(notif_port, data);
address_space_stq_be(&address_space_memory, notif_port, data,
MEMTXATTRS_UNSPECIFIED, &result);
@@ -1282,6 +1326,18 @@ static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno,
}
}
+static void pnv_phb4_xive_notify(XiveNotifier *xf, uint32_t srcno,
+ bool pq_checked)
+{
+ PnvPHB4 *phb = PNV_PHB4(xf);
+
+ if (phb->regs[PHB_CTRLR >> 3] & PHB_CTRLR_IRQ_ABT_MODE) {
+ pnv_phb4_xive_notify_abt(phb, srcno, pq_checked);
+ } else {
+ pnv_phb4_xive_notify_ic(phb, srcno, pq_checked);
+ }
+}
+
static Property pnv_phb4_properties[] = {
DEFINE_PROP_UINT32("index", PnvPHB4, phb_id, 0),
DEFINE_PROP_UINT32("chip-id", PnvPHB4, chip_id, 0),
@@ -1442,10 +1498,15 @@ void pnv_phb4_update_regions(PnvPhb4PecStack *stack)
void pnv_phb4_pic_print_info(PnvPHB4 *phb, Monitor *mon)
{
+ uint64_t notif_port =
+ phb->regs[PHB_INT_NOTIFY_ADDR >> 3] & ~PHB_INT_NOTIFY_ADDR_64K;
uint32_t offset = phb->regs[PHB_INT_NOTIFY_INDEX >> 3];
+ bool abt = !!(phb->regs[PHB_CTRLR >> 3] & PHB_CTRLR_IRQ_ABT_MODE);
- monitor_printf(mon, "PHB4[%x:%x] Source %08x .. %08x\n",
+ monitor_printf(mon, "PHB4[%x:%x] Source %08x .. %08x %s @%"HWADDR_PRIx"\n",
phb->chip_id, phb->phb_id,
- offset, offset + phb->xsrc.nr_irqs - 1);
+ offset, offset + phb->xsrc.nr_irqs - 1,
+ abt ? "ABT" : "",
+ notif_port);
xive_source_pic_print_info(&phb->xsrc, 0, mon);
}
diff --git a/hw/pci-host/trace-events b/hw/pci-host/trace-events
index 630e9fcc5e77..6e5d8d335525 100644
--- a/hw/pci-host/trace-events
+++ b/hw/pci-host/trace-events
@@ -32,3 +32,5 @@ unin_read(uint64_t addr, uint64_t value) "addr=0x%" PRIx64 " val=0x%"PRIx64
# pnv_phb4.c
pnv_phb4_xive_notify(uint64_t notif_port, uint64_t data) "notif=@0x%"PRIx64" data=0x%"PRIx64
+pnv_phb4_xive_notify_ic(uint64_t addr, uint64_t data) "addr=@0x%"PRIx64" data=0x%"PRIx64
+pnv_phb4_xive_notify_abt(uint64_t notif_port, uint64_t data) "notif=@0x%"PRIx64" data=0x%"PRIx64
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 21/26] pnv/xive2: Introduce new capability bits
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (19 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 20/26] ppc/pnv: Add support for PHB5 "Address-based trigger" mode Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 22/26] ppc/pnv: add XIVE Gen2 TIMA support Cédric Le Goater
` (6 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
These bits control the availability of interrupt features : StoreEOI,
PHB PQ_disable, PHB Address-Based Trigger and the overall XIVE
exploitation mode. These bits can be set at early boot time of the
system to activate/deactivate a feature for testing purposes. The
default value should be '1'.
The 'XIVE exploitation mode' bit is a software bit that skiboot could
use to disable the XIVE OS interface and propose a P8 style XICS
interface instead. There are no plans for that for the moment.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/intc/pnv_xive2_regs.h | 5 +++++
hw/intc/pnv_xive2.c | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/hw/intc/pnv_xive2_regs.h b/hw/intc/pnv_xive2_regs.h
index 084fccc8d3e9..46d4fb378135 100644
--- a/hw/intc/pnv_xive2_regs.h
+++ b/hw/intc/pnv_xive2_regs.h
@@ -31,6 +31,11 @@
#define CQ_XIVE_CAP_VP_INT_PRIO_8 3
#define CQ_XIVE_CAP_BLOCK_ID_WIDTH PPC_BITMASK(12, 13)
+#define CQ_XIVE_CAP_PHB_PQ_DISABLE PPC_BIT(56)
+#define CQ_XIVE_CAP_PHB_ABT PPC_BIT(57)
+#define CQ_XIVE_CAP_EXPLOITATION_MODE PPC_BIT(58)
+#define CQ_XIVE_CAP_STORE_EOI PPC_BIT(59)
+
/* XIVE2 Configuration */
#define X_CQ_XIVE_CFG 0x03
#define CQ_XIVE_CFG 0x018
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index 186ab66e105d..cb12cea14fc6 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -1708,9 +1708,9 @@ static const MemoryRegionOps pnv_xive2_nvpg_ops = {
};
/*
- * POWER10 default capabilities: 0x2000120076f00000
+ * POWER10 default capabilities: 0x2000120076f000FC
*/
-#define PNV_XIVE2_CAPABILITIES 0x2000120076f00000
+#define PNV_XIVE2_CAPABILITIES 0x2000120076f000FC
/*
* POWER10 default configuration: 0x0030000033000000
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 22/26] ppc/pnv: add XIVE Gen2 TIMA support
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (20 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 21/26] pnv/xive2: Introduce new capability bits Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 23/26] pnv/xive2: Add support XIVE2 P9-compat mode (or Gen1) Cédric Le Goater
` (5 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Only the CAM line updates done by the hypervisor are specific to
POWER10. Instead of duplicating the TM ops table, we handle these
commands locally under the PowerNV XIVE2 model.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive2.h | 8 ++++
hw/intc/pnv_xive2.c | 27 +++++++++++-
hw/intc/xive2.c | 95 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 128 insertions(+), 2 deletions(-)
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index 082222d978bb..f9c02e568e43 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -93,5 +93,13 @@ typedef struct Xive2EndSource {
Xive2Router *xrtr;
} Xive2EndSource;
+/*
+ * XIVE2 Thread Interrupt Management Area (POWER10)
+ */
+
+void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
+ uint64_t value, unsigned size);
+uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+ hwaddr offset, unsigned size);
#endif /* PPC_XIVE2_H */
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index cb12cea14fc6..4a2649893232 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -1610,15 +1610,32 @@ static const MemoryRegionOps pnv_xive2_ic_tm_indirect_ops = {
* TIMA ops
*/
+/*
+ * Special TIMA offsets to handle accesses in a POWER10 way.
+ *
+ * Only the CAM line updates done by the hypervisor should be handled
+ * specifically.
+ */
+#define HV_PAGE_OFFSET (XIVE_TM_HV_PAGE << TM_SHIFT)
+#define HV_PUSH_OS_CTX_OFFSET (HV_PAGE_OFFSET | (TM_QW1_OS + TM_WORD2))
+#define HV_PULL_OS_CTX_OFFSET (HV_PAGE_OFFSET | TM_SPC_PULL_OS_CTX)
+
static void pnv_xive2_tm_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+ XivePresenter *xptr = XIVE_PRESENTER(xive);
+
+ /* TODO: should we switch the TM ops table instead ? */
+ if (offset == HV_PUSH_OS_CTX_OFFSET) {
+ xive2_tm_push_os_ctx(xptr, tctx, offset, value, size);
+ return;
+ }
/* Other TM ops are the same as XIVE1 */
- xive_tctx_tm_write(XIVE_PRESENTER(xive), tctx, offset, value, size);
+ xive_tctx_tm_write(xptr, tctx, offset, value, size);
}
static uint64_t pnv_xive2_tm_read(void *opaque, hwaddr offset, unsigned size)
@@ -1626,9 +1643,15 @@ static uint64_t pnv_xive2_tm_read(void *opaque, hwaddr offset, unsigned size)
PowerPCCPU *cpu = POWERPC_CPU(current_cpu);
PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
+ XivePresenter *xptr = XIVE_PRESENTER(xive);
+
+ /* TODO: should we switch the TM ops table instead ? */
+ if (offset == HV_PULL_OS_CTX_OFFSET) {
+ return xive2_tm_pull_os_ctx(xptr, tctx, offset, size);
+ }
/* Other TM ops are the same as XIVE1 */
- return xive_tctx_tm_read(XIVE_PRESENTER(xive), tctx, offset, size);
+ return xive_tctx_tm_read(xptr, tctx, offset, size);
}
static const MemoryRegionOps pnv_xive2_tm_ops = {
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 8243391e8c09..dd01e8d05ba1 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -169,6 +169,101 @@ static void xive2_end_enqueue(Xive2End *end, uint32_t data)
}
end->w1 = xive_set_field32(END2_W1_PAGE_OFF, end->w1, qindex);
}
+
+/*
+ * XIVE Thread Interrupt Management Area (TIMA) - Gen2 mode
+ */
+
+static void xive2_os_cam_decode(uint32_t cam, uint8_t *nvp_blk,
+ uint32_t *nvp_idx, bool *vo)
+{
+ *nvp_blk = xive2_nvp_blk(cam);
+ *nvp_idx = xive2_nvp_idx(cam);
+ *vo = !!(cam & TM2_QW1W2_VO);
+}
+
+uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+ hwaddr offset, unsigned size)
+{
+ uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
+ uint32_t qw1w2_new;
+ uint32_t cam = be32_to_cpu(qw1w2);
+ uint8_t nvp_blk;
+ uint32_t nvp_idx;
+ bool vo;
+
+ xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo);
+
+ if (!vo) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: pulling invalid NVP %x/%x !?\n",
+ nvp_blk, nvp_idx);
+ }
+
+ /* Invalidate CAM line */
+ qw1w2_new = xive_set_field32(TM2_QW1W2_VO, qw1w2, 0);
+ memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2_new, 4);
+
+ return qw1w2;
+}
+
+static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx,
+ uint8_t nvp_blk, uint32_t nvp_idx)
+{
+ Xive2Nvp nvp;
+ uint8_t ipb;
+ uint8_t cppr = 0;
+
+ /*
+ * Grab the associated thread interrupt context registers in the
+ * associated NVP
+ */
+ if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No NVP %x/%x\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (!xive2_nvp_is_valid(&nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid NVP %x/%x\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2);
+ if (ipb) {
+ nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, 0);
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
+ }
+
+ /* An IPB or CPPR change can trigger a resend */
+ if (ipb || cppr) {
+ xive_tctx_ipb_update(tctx, TM_QW1_OS, ipb);
+ }
+}
+
+/*
+ * Updating the OS CAM line can trigger a resend of interrupt
+ */
+void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
+ hwaddr offset, uint64_t value, unsigned size)
+{
+ uint32_t cam = value;
+ uint32_t qw1w2 = cpu_to_be32(cam);
+ uint8_t nvp_blk;
+ uint32_t nvp_idx;
+ bool vo;
+
+ xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo);
+
+ /* First update the thead context */
+ memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4);
+
+ /* Check the interrupt pending bits */
+ if (vo) {
+ xive2_tctx_need_resend(XIVE2_ROUTER(xptr), tctx, nvp_blk, nvp_idx);
+ }
+}
+
/*
* XIVE Router (aka. Virtualization Controller or IVRE)
*/
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 23/26] pnv/xive2: Add support XIVE2 P9-compat mode (or Gen1)
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (21 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 22/26] ppc/pnv: add XIVE Gen2 TIMA support Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 24/26] xive2: Add a get_config() handler for the router configuration Cédric Le Goater
` (4 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The thread interrupt management area (TIMA) is a set of pages mapped
in the Hypervisor and in the guest OS address space giving access to
the interrupt thread context registers for interrupt management, ACK,
EOI, CPPR, etc.
XIVE2 changes slightly the TIMA layout with extra bits for the new
features, larger CAM lines and the controller provides configuration
switches for backward compatibility. This is called the XIVE2
P9-compat mode, of Gen1 TIMA. It impacts the layout of the TIMA and
the availability of the internal features associated with it,
Automatic Save & Restore for instance. Using a P9 layout also means
setting the controller in such a mode at init time.
As the OPAL driver initializes the XIVE2 controller with a XIVE2/P10
TIMA directly, the XIVE2 model only has a simple support for the
compat mode in the OS TIMA.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/intc/pnv_xive2_regs.h | 6 ++++++
hw/intc/pnv_xive2.c | 22 +++++++++++++++++-----
2 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/hw/intc/pnv_xive2_regs.h b/hw/intc/pnv_xive2_regs.h
index 46d4fb378135..902220e6be69 100644
--- a/hw/intc/pnv_xive2_regs.h
+++ b/hw/intc/pnv_xive2_regs.h
@@ -60,6 +60,12 @@
#define CQ_XIVE_CFG_HYP_HARD_BLKID_OVERRIDE PPC_BIT(16)
#define CQ_XIVE_CFG_HYP_HARD_BLOCK_ID PPC_BITMASK(17, 23)
+#define CQ_XIVE_CFG_GEN1_TIMA_OS PPC_BIT(24)
+#define CQ_XIVE_CFG_GEN1_TIMA_HYP PPC_BIT(25)
+#define CQ_XIVE_CFG_GEN1_TIMA_HYP_BLK0 PPC_BIT(26) /* 0 if bit[25]=0 */
+#define CQ_XIVE_CFG_GEN1_TIMA_CROWD_DIS PPC_BIT(27) /* 0 if bit[25]=0 */
+#define CQ_XIVE_CFG_GEN1_END_ESX PPC_BIT(28)
+
/* Interrupt Controller Base Address Register - 512 pages (32M) */
#define X_CQ_IC_BAR 0x08
#define CQ_IC_BAR 0x040
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index 4a2649893232..b364ee3b306b 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -444,6 +444,8 @@ static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format,
PnvChip *chip = xive->chip;
int count = 0;
int i, j;
+ bool gen1_tima_os =
+ xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_GEN1_TIMA_OS;
for (i = 0; i < chip->nr_cores; i++) {
PnvCore *pc = chip->cores[i];
@@ -460,9 +462,15 @@ static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format,
tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
- ring = xive2_presenter_tctx_match(xptr, tctx, format, nvt_blk,
- nvt_idx, cam_ignore,
- logic_serv);
+ if (gen1_tima_os) {
+ ring = xive_presenter_tctx_match(xptr, tctx, format, nvt_blk,
+ nvt_idx, cam_ignore,
+ logic_serv);
+ } else {
+ ring = xive2_presenter_tctx_match(xptr, tctx, format, nvt_blk,
+ nvt_idx, cam_ignore,
+ logic_serv);
+ }
/*
* Save the context and follow on to catch duplicates,
@@ -1627,9 +1635,11 @@ static void pnv_xive2_tm_write(void *opaque, hwaddr offset,
PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
XivePresenter *xptr = XIVE_PRESENTER(xive);
+ bool gen1_tima_os =
+ xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_GEN1_TIMA_OS;
/* TODO: should we switch the TM ops table instead ? */
- if (offset == HV_PUSH_OS_CTX_OFFSET) {
+ if (!gen1_tima_os && offset == HV_PUSH_OS_CTX_OFFSET) {
xive2_tm_push_os_ctx(xptr, tctx, offset, value, size);
return;
}
@@ -1644,9 +1654,11 @@ static uint64_t pnv_xive2_tm_read(void *opaque, hwaddr offset, unsigned size)
PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu);
XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc);
XivePresenter *xptr = XIVE_PRESENTER(xive);
+ bool gen1_tima_os =
+ xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_GEN1_TIMA_OS;
/* TODO: should we switch the TM ops table instead ? */
- if (offset == HV_PULL_OS_CTX_OFFSET) {
+ if (!gen1_tima_os && offset == HV_PULL_OS_CTX_OFFSET) {
return xive2_tm_pull_os_ctx(xptr, tctx, offset, size);
}
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 24/26] xive2: Add a get_config() handler for the router configuration
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (22 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 23/26] pnv/xive2: Add support XIVE2 P9-compat mode (or Gen1) Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 25/26] pnv/xive2: Add support for automatic save&restore Cédric Le Goater
` (3 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Add GEN1 config even if we don't use it yet in the core framework.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive2.h | 8 ++++++++
hw/intc/pnv_xive2.c | 13 +++++++++++++
hw/intc/xive2.c | 7 +++++++
3 files changed, 28 insertions(+)
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index f9c02e568e43..94387dcdb105 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -30,6 +30,12 @@ typedef struct Xive2Router {
#define XIVE2_ROUTER_GET_CLASS(obj) \
OBJECT_GET_CLASS(Xive2RouterClass, (obj), TYPE_XIVE2_ROUTER)
+/*
+ * Configuration flags
+ */
+
+#define XIVE2_GEN1_TIMA_OS 0x00000001
+
typedef struct Xive2RouterClass {
SysBusDeviceClass parent;
@@ -49,6 +55,7 @@ typedef struct Xive2RouterClass {
int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp, uint8_t word_number);
uint8_t (*get_block_id)(Xive2Router *xrtr);
+ uint32_t (*get_config)(Xive2Router *xrtr);
} Xive2RouterClass;
int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
@@ -61,6 +68,7 @@ int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp);
int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp, uint8_t word_number);
+uint32_t xive2_router_get_config(Xive2Router *xrtr);
void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index b364ee3b306b..2b7d6ccbd097 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -425,6 +425,18 @@ static int pnv_xive2_get_eas(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
return pnv_xive2_vst_read(xive, VST_EAS, blk, idx, eas);
}
+static uint32_t pnv_xive2_get_config(Xive2Router *xrtr)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+ uint32_t cfg = 0;
+
+ if (xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_GEN1_TIMA_OS) {
+ cfg |= XIVE2_GEN1_TIMA_OS;
+ }
+
+ return cfg;
+}
+
static bool pnv_xive2_is_cpu_enabled(PnvXive2 *xive, PowerPCCPU *cpu)
{
int pir = ppc_cpu_pir(cpu);
@@ -1949,6 +1961,7 @@ static void pnv_xive2_class_init(ObjectClass *klass, void *data)
xrc->write_end = pnv_xive2_write_end;
xrc->get_nvp = pnv_xive2_get_nvp;
xrc->write_nvp = pnv_xive2_write_nvp;
+ xrc->get_config = pnv_xive2_get_config;
xrc->get_block_id = pnv_xive2_get_block_id;
xnc->notify = pnv_xive2_notify;
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index dd01e8d05ba1..7f95eec987ce 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -20,6 +20,13 @@
#include "hw/ppc/xive2.h"
#include "hw/ppc/xive2_regs.h"
+uint32_t xive2_router_get_config(Xive2Router *xrtr)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_config(xrtr);
+}
+
static inline uint32_t xive_tctx_word2(uint8_t *ring)
{
return *((uint32_t *) &ring[TM_WORD2]);
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 25/26] pnv/xive2: Add support for automatic save&restore
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (23 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 24/26] xive2: Add a get_config() handler for the router configuration Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-09 13:45 ` [PATCH 26/26] pnv/xive2: Add support for 8bits thread id Cédric Le Goater
` (2 subsequent siblings)
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
The XIVE interrupt controller on P10 can automatically save and
restore the state of the interrupt registers under the internal NVP
structure representing the VCPU. This saves a costly store/load in
guest entries and exits.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/intc/pnv_xive2_regs.h | 3 +
include/hw/ppc/xive2.h | 1 +
include/hw/ppc/xive2_regs.h | 12 ++++
hw/intc/pnv_xive2.c | 18 +++++-
hw/intc/xive2.c | 126 ++++++++++++++++++++++++++++++++++--
5 files changed, 154 insertions(+), 6 deletions(-)
diff --git a/hw/intc/pnv_xive2_regs.h b/hw/intc/pnv_xive2_regs.h
index 902220e6be69..3488ae188938 100644
--- a/hw/intc/pnv_xive2_regs.h
+++ b/hw/intc/pnv_xive2_regs.h
@@ -30,6 +30,7 @@
#define CQ_XIVE_CAP_VP_INT_PRIO_4_8 2
#define CQ_XIVE_CAP_VP_INT_PRIO_8 3
#define CQ_XIVE_CAP_BLOCK_ID_WIDTH PPC_BITMASK(12, 13)
+#define CQ_XIVE_CAP_VP_SAVE_RESTORE PPC_BIT(38)
#define CQ_XIVE_CAP_PHB_PQ_DISABLE PPC_BIT(56)
#define CQ_XIVE_CAP_PHB_ABT PPC_BIT(57)
@@ -65,6 +66,8 @@
#define CQ_XIVE_CFG_GEN1_TIMA_HYP_BLK0 PPC_BIT(26) /* 0 if bit[25]=0 */
#define CQ_XIVE_CFG_GEN1_TIMA_CROWD_DIS PPC_BIT(27) /* 0 if bit[25]=0 */
#define CQ_XIVE_CFG_GEN1_END_ESX PPC_BIT(28)
+#define CQ_XIVE_CFG_EN_VP_SAVE_RESTORE PPC_BIT(38) /* 0 if bit[25]=1 */
+#define CQ_XIVE_CFG_EN_VP_SAVE_REST_STRICT PPC_BIT(39) /* 0 if bit[25]=1 */
/* Interrupt Controller Base Address Register - 512 pages (32M) */
#define X_CQ_IC_BAR 0x08
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index 94387dcdb105..6d8764724d6d 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -35,6 +35,7 @@ typedef struct Xive2Router {
*/
#define XIVE2_GEN1_TIMA_OS 0x00000001
+#define XIVE2_VP_SAVE_RESTORE 0x00000002
typedef struct Xive2RouterClass {
SysBusDeviceClass parent;
diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h
index f4827f4c6d54..d214b49bef75 100644
--- a/include/hw/ppc/xive2_regs.h
+++ b/include/hw/ppc/xive2_regs.h
@@ -20,10 +20,13 @@
#define TM2_QW0W2_VU PPC_BIT32(0)
#define TM2_QW0W2_LOGIC_SERV PPC_BITMASK32(4, 31)
#define TM2_QW1W2_VO PPC_BIT32(0)
+#define TM2_QW1W2_HO PPC_BIT32(1)
#define TM2_QW1W2_OS_CAM PPC_BITMASK32(4, 31)
#define TM2_QW2W2_VP PPC_BIT32(0)
+#define TM2_QW2W2_HP PPC_BIT32(1)
#define TM2_QW2W2_POOL_CAM PPC_BITMASK32(4, 31)
#define TM2_QW3W2_VT PPC_BIT32(0)
+#define TM2_QW3W2_HT PPC_BIT32(1)
#define TM2_QW3W2_LP PPC_BIT32(6)
#define TM2_QW3W2_LE PPC_BIT32(7)
@@ -137,10 +140,17 @@ void xive2_end_eas_pic_print_info(Xive2End *end, uint32_t end_idx,
typedef struct Xive2Nvp {
uint32_t w0;
#define NVP2_W0_VALID PPC_BIT32(0)
+#define NVP2_W0_HW PPC_BIT32(7)
#define NVP2_W0_ESC_END PPC_BIT32(25) /* 'N' bit 0:ESB 1:END */
uint32_t w1;
+#define NVP2_W1_CO PPC_BIT32(13)
+#define NVP2_W1_CO_PRIV PPC_BITMASK32(14, 15)
+#define NVP2_W1_CO_THRID_VALID PPC_BIT32(16)
+#define NVP2_W1_CO_THRID PPC_BITMASK32(17, 31)
uint32_t w2;
+#define NVP2_W2_CPPR PPC_BITMASK32(0, 7)
#define NVP2_W2_IPB PPC_BITMASK32(8, 15)
+#define NVP2_W2_LSMFB PPC_BITMASK32(16, 23)
uint32_t w3;
uint32_t w4;
#define NVP2_W4_ESC_ESB_BLOCK PPC_BITMASK32(0, 3) /* N:0 */
@@ -156,6 +166,8 @@ typedef struct Xive2Nvp {
} Xive2Nvp;
#define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID)
+#define xive2_nvp_is_hw(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_HW)
+#define xive2_nvp_is_co(nvp) (be32_to_cpu((nvp)->w1) & NVP2_W1_CO)
/*
* The VP number space in a block is defined by the END2_W6_VP_OFFSET
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index 2b7d6ccbd097..6f0a63cd3d2f 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -434,6 +434,10 @@ static uint32_t pnv_xive2_get_config(Xive2Router *xrtr)
cfg |= XIVE2_GEN1_TIMA_OS;
}
+ if (xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_EN_VP_SAVE_RESTORE) {
+ cfg |= XIVE2_VP_SAVE_RESTORE;
+ }
+
return cfg;
}
@@ -1999,9 +2003,21 @@ static void xive2_nvp_pic_print_info(Xive2Nvp *nvp, uint32_t nvp_idx,
return;
}
- monitor_printf(mon, " %08x end:%02x/%04x IPB:%02x\n",
+ monitor_printf(mon, " %08x end:%02x/%04x IPB:%02x",
nvp_idx, eq_blk, eq_idx,
xive_get_field32(NVP2_W2_IPB, nvp->w2));
+ /*
+ * When the NVP is HW controlled, more fields are updated
+ */
+ if (xive2_nvp_is_hw(nvp)) {
+ monitor_printf(mon, " CPPR:%02x",
+ xive_get_field32(NVP2_W2_CPPR, nvp->w2));
+ if (xive2_nvp_is_co(nvp)) {
+ monitor_printf(mon, " CO:%04x",
+ xive_get_field32(NVP2_W1_CO_THRID, nvp->w1));
+ }
+ }
+ monitor_printf(mon, "\n");
}
/*
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 7f95eec987ce..532e832422a3 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -179,27 +179,92 @@ static void xive2_end_enqueue(Xive2End *end, uint32_t data)
/*
* XIVE Thread Interrupt Management Area (TIMA) - Gen2 mode
+ *
+ * TIMA Gen2 VP “save & restore” (S&R) indicated by H bit next to V bit
+ *
+ * - if a context is enabled with the H bit set, the VP context
+ * information is retrieved from the NVP structure (“check out”)
+ * and stored back on a context pull (“check in”), the SW receives
+ * the same context pull information as on P9
+ *
+ * - the H bit cannot be changed while the V bit is set, i.e. a
+ * context cannot be set up in the TIMA and then be “pushed” into
+ * the NVP by changing the H bit while the context is enabled
*/
+static void xive2_tctx_save_os_ctx(Xive2Router *xrtr, XiveTCTX *tctx,
+ uint8_t nvp_blk, uint32_t nvp_idx)
+{
+ CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
+ uint32_t pir = env->spr_cb[SPR_PIR].default_value;
+ Xive2Nvp nvp;
+ uint8_t *regs = &tctx->regs[TM_QW1_OS];
+
+ if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No NVP %x/%x\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (!xive2_nvp_is_valid(&nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid NVP %x/%x\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (!xive2_nvp_is_hw(&nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is not HW owned\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (!xive2_nvp_is_co(&nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is not checkout\n",
+ nvp_blk, nvp_idx);
+ return;
+ }
+
+ if (xive_get_field32(NVP2_W1_CO_THRID_VALID, nvp.w1) &&
+ xive_get_field32(NVP2_W1_CO_THRID, nvp.w1) != pir) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "XIVE: NVP %x/%x invalid checkout Thread %x\n",
+ nvp_blk, nvp_idx, pir);
+ return;
+ }
+
+ nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, regs[TM_IPB]);
+ nvp.w2 = xive_set_field32(NVP2_W2_CPPR, nvp.w2, regs[TM_CPPR]);
+ nvp.w2 = xive_set_field32(NVP2_W2_LSMFB, nvp.w2, regs[TM_LSMFB]);
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 2);
+
+ nvp.w1 = xive_set_field32(NVP2_W1_CO, nvp.w1, 0);
+ /* NVP2_W1_CO_THRID_VALID only set once */
+ nvp.w1 = xive_set_field32(NVP2_W1_CO_THRID, nvp.w1, 0xFFFF);
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 1);
+}
+
static void xive2_os_cam_decode(uint32_t cam, uint8_t *nvp_blk,
- uint32_t *nvp_idx, bool *vo)
+ uint32_t *nvp_idx, bool *vo, bool *ho)
{
*nvp_blk = xive2_nvp_blk(cam);
*nvp_idx = xive2_nvp_idx(cam);
*vo = !!(cam & TM2_QW1W2_VO);
+ *ho = !!(cam & TM2_QW1W2_HO);
}
uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
hwaddr offset, unsigned size)
{
+ Xive2Router *xrtr = XIVE2_ROUTER(xptr);
uint32_t qw1w2 = xive_tctx_word2(&tctx->regs[TM_QW1_OS]);
uint32_t qw1w2_new;
uint32_t cam = be32_to_cpu(qw1w2);
uint8_t nvp_blk;
uint32_t nvp_idx;
bool vo;
+ bool do_save;
- xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo);
+ xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo, &do_save);
if (!vo) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: pulling invalid NVP %x/%x !?\n",
@@ -210,11 +275,54 @@ uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
qw1w2_new = xive_set_field32(TM2_QW1W2_VO, qw1w2, 0);
memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2_new, 4);
+ if (xive2_router_get_config(xrtr) & XIVE2_VP_SAVE_RESTORE && do_save) {
+ xive2_tctx_save_os_ctx(xrtr, tctx, nvp_blk, nvp_idx);
+ }
+
return qw1w2;
}
+static uint8_t xive2_tctx_restore_os_ctx(Xive2Router *xrtr, XiveTCTX *tctx,
+ uint8_t nvp_blk, uint32_t nvp_idx,
+ Xive2Nvp *nvp)
+{
+ CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
+ uint32_t pir = env->spr_cb[SPR_PIR].default_value;
+ uint8_t cppr;
+
+ if (!xive2_nvp_is_hw(nvp)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: NVP %x/%x is not HW owned\n",
+ nvp_blk, nvp_idx);
+ return 0;
+ }
+
+ cppr = xive_get_field32(NVP2_W2_CPPR, nvp->w2);
+ nvp->w2 = xive_set_field32(NVP2_W2_CPPR, nvp->w2, 0);
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, nvp, 2);
+
+ tctx->regs[TM_QW1_OS + TM_CPPR] = cppr;
+ /* we don't model LSMFB */
+
+ nvp->w1 = xive_set_field32(NVP2_W1_CO, nvp->w1, 1);
+ nvp->w1 = xive_set_field32(NVP2_W1_CO_THRID_VALID, nvp->w1, 1);
+ nvp->w1 = xive_set_field32(NVP2_W1_CO_THRID, nvp->w1, pir);
+
+ /*
+ * Checkout privilege: 0:OS, 1:Pool, 2:Hard
+ *
+ * TODO: we only support OS push/pull
+ */
+ nvp->w1 = xive_set_field32(NVP2_W1_CO_PRIV, nvp->w1, 0);
+
+ xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, nvp, 1);
+
+ /* return restored CPPR to generate a CPU exception if needed */
+ return cppr;
+}
+
static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx,
- uint8_t nvp_blk, uint32_t nvp_idx)
+ uint8_t nvp_blk, uint32_t nvp_idx,
+ bool do_restore)
{
Xive2Nvp nvp;
uint8_t ipb;
@@ -236,6 +344,12 @@ static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx,
return;
}
+ /* Automatically restore thread context registers */
+ if (xive2_router_get_config(xrtr) & XIVE2_VP_SAVE_RESTORE &&
+ do_restore) {
+ cppr = xive2_tctx_restore_os_ctx(xrtr, tctx, nvp_blk, nvp_idx, &nvp);
+ }
+
ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2);
if (ipb) {
nvp.w2 = xive_set_field32(NVP2_W2_IPB, nvp.w2, 0);
@@ -259,15 +373,17 @@ void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
uint8_t nvp_blk;
uint32_t nvp_idx;
bool vo;
+ bool do_restore;
- xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo);
+ xive2_os_cam_decode(cam, &nvp_blk, &nvp_idx, &vo, &do_restore);
/* First update the thead context */
memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4);
/* Check the interrupt pending bits */
if (vo) {
- xive2_tctx_need_resend(XIVE2_ROUTER(xptr), tctx, nvp_blk, nvp_idx);
+ xive2_tctx_need_resend(XIVE2_ROUTER(xptr), tctx, nvp_blk, nvp_idx,
+ do_restore);
}
}
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* [PATCH 26/26] pnv/xive2: Add support for 8bits thread id
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (24 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 25/26] pnv/xive2: Add support for automatic save&restore Cédric Le Goater
@ 2021-08-09 13:45 ` Cédric Le Goater
2021-08-10 3:07 ` [PATCH 00/26] ppc/pnv: Extend the powernv10 machine David Gibson
2021-08-10 3:12 ` David Gibson
27 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-09 13:45 UTC (permalink / raw)
To: David Gibson, Greg Kurz; +Cc: qemu-ppc, qemu-devel, Cédric Le Goater
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
include/hw/ppc/xive2.h | 1 +
hw/intc/pnv_xive2.c | 5 +++++
hw/intc/xive2.c | 3 ++-
3 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h
index 6d8764724d6d..7281c1d10223 100644
--- a/include/hw/ppc/xive2.h
+++ b/include/hw/ppc/xive2.h
@@ -36,6 +36,7 @@ typedef struct Xive2Router {
#define XIVE2_GEN1_TIMA_OS 0x00000001
#define XIVE2_VP_SAVE_RESTORE 0x00000002
+#define XIVE2_THREADID_8BITS 0x00000004
typedef struct Xive2RouterClass {
SysBusDeviceClass parent;
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index 6f0a63cd3d2f..5aaccaf78934 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -438,6 +438,11 @@ static uint32_t pnv_xive2_get_config(Xive2Router *xrtr)
cfg |= XIVE2_VP_SAVE_RESTORE;
}
+ if (GETFIELD(CQ_XIVE_CFG_HYP_HARD_RANGE,
+ xive->cq_regs[CQ_XIVE_CFG >> 3]) == CQ_XIVE_CFG_THREADID_8BITS) {
+ cfg |= XIVE2_THREADID_8BITS;
+ }
+
return cfg;
}
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 532e832422a3..c599ee67ec97 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -469,7 +469,8 @@ static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx)
CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env;
uint32_t pir = env->spr_cb[SPR_PIR].default_value;
uint8_t blk = xive2_router_get_block_id(xrtr);
- uint8_t tid_shift = 7;
+ uint8_t tid_shift =
+ xive2_router_get_config(xrtr) & XIVE2_THREADID_8BITS ? 8 : 7;
uint8_t tid_mask = (1 << tid_shift) - 1;
return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask));
--
2.31.1
^ permalink raw reply related [flat|nested] 49+ messages in thread* Re: [PATCH 00/26] ppc/pnv: Extend the powernv10 machine
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (25 preceding siblings ...)
2021-08-09 13:45 ` [PATCH 26/26] pnv/xive2: Add support for 8bits thread id Cédric Le Goater
@ 2021-08-10 3:07 ` David Gibson
2021-08-10 3:12 ` David Gibson
27 siblings, 0 replies; 49+ messages in thread
From: David Gibson @ 2021-08-10 3:07 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 1068 bytes --]
On Mon, Aug 09, 2021 at 03:45:21PM +0200, Cédric Le Goater wrote:
> Hi,
>
> This series adds the minimum set of models (XIVE2, PHB5) to boot a
> baremetal POWER10 machine using the OpenPOWER firmware images.
>
> The major change is the support for the interrupt controller of the
> POWER10 processor. XIVE2 is very much like XIVE but the register
> interface, the different MMIO regions, the XIVE internal descriptors
> have gone through a major cleanup. It was easier to duplicate the
> models then to try to adapt the current models. XIVE2 adds some new
> set of features. Not all are modeled here but we add the
> "Address-based trigger" mode which is activated by default on the
> PHB5. When using ABT, the PHB5 offloads all interrupt management on
> the IC, this to improve latency.
1..4/26 applied to ppc-for-6.2, continuing to look at the rest.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 00/26] ppc/pnv: Extend the powernv10 machine
2021-08-09 13:45 [PATCH 00/26] ppc/pnv: Extend the powernv10 machine Cédric Le Goater
` (26 preceding siblings ...)
2021-08-10 3:07 ` [PATCH 00/26] ppc/pnv: Extend the powernv10 machine David Gibson
@ 2021-08-10 3:12 ` David Gibson
2021-08-10 8:58 ` Cédric Le Goater
27 siblings, 1 reply; 49+ messages in thread
From: David Gibson @ 2021-08-10 3:12 UTC (permalink / raw)
To: Cédric Le Goater; +Cc: qemu-ppc, Greg Kurz, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 1068 bytes --]
On Mon, Aug 09, 2021 at 03:45:21PM +0200, Cédric Le Goater wrote:
> Hi,
>
> This series adds the minimum set of models (XIVE2, PHB5) to boot a
> baremetal POWER10 machine using the OpenPOWER firmware images.
>
> The major change is the support for the interrupt controller of the
> POWER10 processor. XIVE2 is very much like XIVE but the register
> interface, the different MMIO regions, the XIVE internal descriptors
> have gone through a major cleanup. It was easier to duplicate the
> models then to try to adapt the current models. XIVE2 adds some new
> set of features. Not all are modeled here but we add the
> "Address-based trigger" mode which is activated by default on the
> PHB5. When using ABT, the PHB5 offloads all interrupt management on
> the IC, this to improve latency.
5..8/26 applied to ppc-for-6.2, continuing to look at the rest.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread* Re: [PATCH 00/26] ppc/pnv: Extend the powernv10 machine
2021-08-10 3:12 ` David Gibson
@ 2021-08-10 8:58 ` Cédric Le Goater
0 siblings, 0 replies; 49+ messages in thread
From: Cédric Le Goater @ 2021-08-10 8:58 UTC (permalink / raw)
To: David Gibson; +Cc: qemu-ppc, Greg Kurz, qemu-devel
On 8/10/21 5:12 AM, David Gibson wrote:
> On Mon, Aug 09, 2021 at 03:45:21PM +0200, Cédric Le Goater wrote:
>> Hi,
>>
>> This series adds the minimum set of models (XIVE2, PHB5) to boot a
>> baremetal POWER10 machine using the OpenPOWER firmware images.
>>
>> The major change is the support for the interrupt controller of the
>> POWER10 processor. XIVE2 is very much like XIVE but the register
>> interface, the different MMIO regions, the XIVE internal descriptors
>> have gone through a major cleanup. It was easier to duplicate the
>> models then to try to adapt the current models. XIVE2 adds some new
>> set of features. Not all are modeled here but we add the
>> "Address-based trigger" mode which is activated by default on the
>> PHB5. When using ABT, the PHB5 offloads all interrupt management on
>> the IC, this to improve latency.
>
> 5..8/26 applied to ppc-for-6.2, continuing to look at the rest.
The XIVE2 part is somewhat tedious ... :/
I sent the acceptance patch for the P8 and P9 machines. It also works
for P10 with the newer skiboot which activates all the newer features
for HW.
C.
^ permalink raw reply [flat|nested] 49+ messages in thread