* [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize
@ 2022-03-21 7:19 Alexey Kardashevskiy
2022-04-07 3:08 ` Alexey Kardashevskiy
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Alexey Kardashevskiy @ 2022-03-21 7:19 UTC (permalink / raw)
To: qemu-ppc; +Cc: Alexey Kardashevskiy, Daniel Henrique Barboza, qemu-devel
Recently the LoPAPR spec got a new 2MB pagesize to support in Dynamic DMA
Windows API (DDW), this adds the new flag.
Linux supports it since
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=38727311871
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
PHYP added support for it in development builds as well.
---
include/hw/ppc/spapr.h | 1 +
hw/ppc/spapr_rtas_ddw.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index f5c33dcc8616..14b01c3f5963 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -745,6 +745,7 @@ void push_sregs_to_kvm_pr(SpaprMachineState *spapr);
#define RTAS_DDW_PGSIZE_128M 0x20
#define RTAS_DDW_PGSIZE_256M 0x40
#define RTAS_DDW_PGSIZE_16G 0x80
+#define RTAS_DDW_PGSIZE_2M 0x100
/* RTAS tokens */
#define RTAS_TOKEN_BASE 0x2000
diff --git a/hw/ppc/spapr_rtas_ddw.c b/hw/ppc/spapr_rtas_ddw.c
index 3e826e1308c4..13d339c807c1 100644
--- a/hw/ppc/spapr_rtas_ddw.c
+++ b/hw/ppc/spapr_rtas_ddw.c
@@ -72,6 +72,7 @@ static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
const struct { int shift; uint32_t mask; } masks[] = {
{ 12, RTAS_DDW_PGSIZE_4K },
{ 16, RTAS_DDW_PGSIZE_64K },
+ { 21, RTAS_DDW_PGSIZE_2M },
{ 24, RTAS_DDW_PGSIZE_16M },
{ 25, RTAS_DDW_PGSIZE_32M },
{ 26, RTAS_DDW_PGSIZE_64M },
--
2.30.2
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize
2022-03-21 7:19 [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize Alexey Kardashevskiy
@ 2022-04-07 3:08 ` Alexey Kardashevskiy
2022-04-07 19:59 ` Daniel Henrique Barboza
2022-04-20 19:10 ` Daniel Henrique Barboza
2 siblings, 0 replies; 4+ messages in thread
From: Alexey Kardashevskiy @ 2022-04-07 3:08 UTC (permalink / raw)
To: qemu-ppc; +Cc: Daniel Henrique Barboza, qemu-devel
On 21/03/2022 18:19, Alexey Kardashevskiy wrote:
> Recently the LoPAPR spec got a new 2MB pagesize to support in Dynamic DMA
> Windows API (DDW), this adds the new flag.
>
> Linux supports it since
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=38727311871
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
ping?
> ---
> PHYP added support for it in development builds as well.
> ---
> include/hw/ppc/spapr.h | 1 +
> hw/ppc/spapr_rtas_ddw.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index f5c33dcc8616..14b01c3f5963 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -745,6 +745,7 @@ void push_sregs_to_kvm_pr(SpaprMachineState *spapr);
> #define RTAS_DDW_PGSIZE_128M 0x20
> #define RTAS_DDW_PGSIZE_256M 0x40
> #define RTAS_DDW_PGSIZE_16G 0x80
> +#define RTAS_DDW_PGSIZE_2M 0x100
>
> /* RTAS tokens */
> #define RTAS_TOKEN_BASE 0x2000
> diff --git a/hw/ppc/spapr_rtas_ddw.c b/hw/ppc/spapr_rtas_ddw.c
> index 3e826e1308c4..13d339c807c1 100644
> --- a/hw/ppc/spapr_rtas_ddw.c
> +++ b/hw/ppc/spapr_rtas_ddw.c
> @@ -72,6 +72,7 @@ static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
> const struct { int shift; uint32_t mask; } masks[] = {
> { 12, RTAS_DDW_PGSIZE_4K },
> { 16, RTAS_DDW_PGSIZE_64K },
> + { 21, RTAS_DDW_PGSIZE_2M },
> { 24, RTAS_DDW_PGSIZE_16M },
> { 25, RTAS_DDW_PGSIZE_32M },
> { 26, RTAS_DDW_PGSIZE_64M },
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize
2022-03-21 7:19 [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize Alexey Kardashevskiy
2022-04-07 3:08 ` Alexey Kardashevskiy
@ 2022-04-07 19:59 ` Daniel Henrique Barboza
2022-04-20 19:10 ` Daniel Henrique Barboza
2 siblings, 0 replies; 4+ messages in thread
From: Daniel Henrique Barboza @ 2022-04-07 19:59 UTC (permalink / raw)
To: Alexey Kardashevskiy, qemu-ppc; +Cc: qemu-devel
On 3/21/22 04:19, Alexey Kardashevskiy wrote:
> Recently the LoPAPR spec got a new 2MB pagesize to support in Dynamic DMA
> Windows API (DDW), this adds the new flag.
>
> Linux supports it since
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=38727311871
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
> PHYP added support for it in development builds as well.
> ---
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
> include/hw/ppc/spapr.h | 1 +
> hw/ppc/spapr_rtas_ddw.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index f5c33dcc8616..14b01c3f5963 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -745,6 +745,7 @@ void push_sregs_to_kvm_pr(SpaprMachineState *spapr);
> #define RTAS_DDW_PGSIZE_128M 0x20
> #define RTAS_DDW_PGSIZE_256M 0x40
> #define RTAS_DDW_PGSIZE_16G 0x80
> +#define RTAS_DDW_PGSIZE_2M 0x100
>
> /* RTAS tokens */
> #define RTAS_TOKEN_BASE 0x2000
> diff --git a/hw/ppc/spapr_rtas_ddw.c b/hw/ppc/spapr_rtas_ddw.c
> index 3e826e1308c4..13d339c807c1 100644
> --- a/hw/ppc/spapr_rtas_ddw.c
> +++ b/hw/ppc/spapr_rtas_ddw.c
> @@ -72,6 +72,7 @@ static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
> const struct { int shift; uint32_t mask; } masks[] = {
> { 12, RTAS_DDW_PGSIZE_4K },
> { 16, RTAS_DDW_PGSIZE_64K },
> + { 21, RTAS_DDW_PGSIZE_2M },
> { 24, RTAS_DDW_PGSIZE_16M },
> { 25, RTAS_DDW_PGSIZE_32M },
> { 26, RTAS_DDW_PGSIZE_64M },
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize
2022-03-21 7:19 [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize Alexey Kardashevskiy
2022-04-07 3:08 ` Alexey Kardashevskiy
2022-04-07 19:59 ` Daniel Henrique Barboza
@ 2022-04-20 19:10 ` Daniel Henrique Barboza
2 siblings, 0 replies; 4+ messages in thread
From: Daniel Henrique Barboza @ 2022-04-20 19:10 UTC (permalink / raw)
To: Alexey Kardashevskiy, qemu-ppc; +Cc: qemu-devel
Queued in gitlab.com/danielhb/qemu/tree/ppc-next. Thanks,
Daniel
On 3/21/22 04:19, Alexey Kardashevskiy wrote:
> Recently the LoPAPR spec got a new 2MB pagesize to support in Dynamic DMA
> Windows API (DDW), this adds the new flag.
>
> Linux supports it since
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=38727311871
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
> PHYP added support for it in development builds as well.
> ---
> include/hw/ppc/spapr.h | 1 +
> hw/ppc/spapr_rtas_ddw.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index f5c33dcc8616..14b01c3f5963 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -745,6 +745,7 @@ void push_sregs_to_kvm_pr(SpaprMachineState *spapr);
> #define RTAS_DDW_PGSIZE_128M 0x20
> #define RTAS_DDW_PGSIZE_256M 0x40
> #define RTAS_DDW_PGSIZE_16G 0x80
> +#define RTAS_DDW_PGSIZE_2M 0x100
>
> /* RTAS tokens */
> #define RTAS_TOKEN_BASE 0x2000
> diff --git a/hw/ppc/spapr_rtas_ddw.c b/hw/ppc/spapr_rtas_ddw.c
> index 3e826e1308c4..13d339c807c1 100644
> --- a/hw/ppc/spapr_rtas_ddw.c
> +++ b/hw/ppc/spapr_rtas_ddw.c
> @@ -72,6 +72,7 @@ static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
> const struct { int shift; uint32_t mask; } masks[] = {
> { 12, RTAS_DDW_PGSIZE_4K },
> { 16, RTAS_DDW_PGSIZE_64K },
> + { 21, RTAS_DDW_PGSIZE_2M },
> { 24, RTAS_DDW_PGSIZE_16M },
> { 25, RTAS_DDW_PGSIZE_32M },
> { 26, RTAS_DDW_PGSIZE_64M },
^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-03-21 7:19 [PATCH qemu] ppc/spapr/ddw: Add 2M pagesize Alexey Kardashevskiy
2022-04-07 3:08 ` Alexey Kardashevskiy
2022-04-07 19:59 ` Daniel Henrique Barboza
2022-04-20 19:10 ` Daniel Henrique Barboza
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