| Message ID | 20230213215111.32017-3-prabhakar.mahadev-lad.rj@bp.renesas.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | Renesas RZ/Five add support to configure PMA and add vendor specific SBI extension | expand |
On Tue, Feb 14, 2023 at 3:21 AM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > On the Renesas RZ/Five SoC by default we want to configure 128MiB of memory > ranging from 0x58000000 as a non-cacheable + bufferable region in the PMA > and populate this region as PMA reserve DT node with shared DMA pool and > no-map flags set so that Linux drivers requesting any DMA'able memory go > through this region. > > PMA node passed to the above stack: > > reserved-memory { > #address-cells = <2>; > #size-cells = <2>; > ranges; > > pma_resv0@58000000 { > compatible = "shared-dma-pool"; > reg = <0x0 0x58000000 0x0 0x08000000>; > no-map; > linux,dma-default; > }; > }; > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com> Looks good to me. Reviewed-by: Anup Patel <anup@brainfault.org> Regards, Anup > --- > platform/generic/Kconfig | 1 + > platform/generic/renesas/rzfive/rzfive.c | 21 +++++++++++++++++++++ > 2 files changed, 22 insertions(+) > > diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig > index 39fb4e9..1f4f8e1 100644 > --- a/platform/generic/Kconfig > +++ b/platform/generic/Kconfig > @@ -35,6 +35,7 @@ config PLATFORM_ANDES_AE350 > > config PLATFORM_RENESAS_RZFIVE > bool "Renesas RZ/Five support" > + select ANDES45_PMA > default n > > config PLATFORM_SIFIVE_FU540 > diff --git a/platform/generic/renesas/rzfive/rzfive.c b/platform/generic/renesas/rzfive/rzfive.c > index ee9c9c4..4d71d0d 100644 > --- a/platform/generic/renesas/rzfive/rzfive.c > +++ b/platform/generic/renesas/rzfive/rzfive.c > @@ -4,10 +4,30 @@ > * > */ > > +#include <andes/andes45_pma.h> > #include <platform_override.h> > #include <sbi/sbi_domain.h> > #include <sbi_utils/fdt/fdt_helper.h> > > +static const struct andes45_pma_region renesas_rzfive_pma_regions[] = { > + { > + .pa = 0x58000000, > + .size = 0x8000000, > + .flags = ANDES45_PMACFG_ETYP_NAPOT | > + ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF, > + .dt_populate = true, > + .shared_dma = true, > + .no_map = true, > + .dma_default = true, > + }, > +}; > + > +static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match) > +{ > + return andes45_pma_setup_regions(renesas_rzfive_pma_regions, > + array_size(renesas_rzfive_pma_regions)); > +} > + > int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match) > { > /* > @@ -34,4 +54,5 @@ static const struct fdt_match renesas_rzfive_match[] = { > const struct platform_override renesas_rzfive = { > .match_table = renesas_rzfive_match, > .early_init = renesas_rzfive_early_init, > + .final_init = renesas_rzfive_final_init, > }; > -- > 2.17.1 >
On Tue, Feb 14, 2023 at 3:21 AM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > On the Renesas RZ/Five SoC by default we want to configure 128MiB of memory > ranging from 0x58000000 as a non-cacheable + bufferable region in the PMA > and populate this region as PMA reserve DT node with shared DMA pool and > no-map flags set so that Linux drivers requesting any DMA'able memory go > through this region. > > PMA node passed to the above stack: > > reserved-memory { > #address-cells = <2>; > #size-cells = <2>; > ranges; > > pma_resv0@58000000 { > compatible = "shared-dma-pool"; > reg = <0x0 0x58000000 0x0 0x08000000>; > no-map; > linux,dma-default; > }; > }; > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com> Applied this patch to the riscv/opensbi repo. Thanks, Anup > --- > platform/generic/Kconfig | 1 + > platform/generic/renesas/rzfive/rzfive.c | 21 +++++++++++++++++++++ > 2 files changed, 22 insertions(+) > > diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig > index 39fb4e9..1f4f8e1 100644 > --- a/platform/generic/Kconfig > +++ b/platform/generic/Kconfig > @@ -35,6 +35,7 @@ config PLATFORM_ANDES_AE350 > > config PLATFORM_RENESAS_RZFIVE > bool "Renesas RZ/Five support" > + select ANDES45_PMA > default n > > config PLATFORM_SIFIVE_FU540 > diff --git a/platform/generic/renesas/rzfive/rzfive.c b/platform/generic/renesas/rzfive/rzfive.c > index ee9c9c4..4d71d0d 100644 > --- a/platform/generic/renesas/rzfive/rzfive.c > +++ b/platform/generic/renesas/rzfive/rzfive.c > @@ -4,10 +4,30 @@ > * > */ > > +#include <andes/andes45_pma.h> > #include <platform_override.h> > #include <sbi/sbi_domain.h> > #include <sbi_utils/fdt/fdt_helper.h> > > +static const struct andes45_pma_region renesas_rzfive_pma_regions[] = { > + { > + .pa = 0x58000000, > + .size = 0x8000000, > + .flags = ANDES45_PMACFG_ETYP_NAPOT | > + ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF, > + .dt_populate = true, > + .shared_dma = true, > + .no_map = true, > + .dma_default = true, > + }, > +}; > + > +static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match) > +{ > + return andes45_pma_setup_regions(renesas_rzfive_pma_regions, > + array_size(renesas_rzfive_pma_regions)); > +} > + > int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match) > { > /* > @@ -34,4 +54,5 @@ static const struct fdt_match renesas_rzfive_match[] = { > const struct platform_override renesas_rzfive = { > .match_table = renesas_rzfive_match, > .early_init = renesas_rzfive_early_init, > + .final_init = renesas_rzfive_final_init, > }; > -- > 2.17.1 >
diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig index 39fb4e9..1f4f8e1 100644 --- a/platform/generic/Kconfig +++ b/platform/generic/Kconfig @@ -35,6 +35,7 @@ config PLATFORM_ANDES_AE350 config PLATFORM_RENESAS_RZFIVE bool "Renesas RZ/Five support" + select ANDES45_PMA default n config PLATFORM_SIFIVE_FU540 diff --git a/platform/generic/renesas/rzfive/rzfive.c b/platform/generic/renesas/rzfive/rzfive.c index ee9c9c4..4d71d0d 100644 --- a/platform/generic/renesas/rzfive/rzfive.c +++ b/platform/generic/renesas/rzfive/rzfive.c @@ -4,10 +4,30 @@ * */ +#include <andes/andes45_pma.h> #include <platform_override.h> #include <sbi/sbi_domain.h> #include <sbi_utils/fdt/fdt_helper.h> +static const struct andes45_pma_region renesas_rzfive_pma_regions[] = { + { + .pa = 0x58000000, + .size = 0x8000000, + .flags = ANDES45_PMACFG_ETYP_NAPOT | + ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF, + .dt_populate = true, + .shared_dma = true, + .no_map = true, + .dma_default = true, + }, +}; + +static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match) +{ + return andes45_pma_setup_regions(renesas_rzfive_pma_regions, + array_size(renesas_rzfive_pma_regions)); +} + int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match) { /* @@ -34,4 +54,5 @@ static const struct fdt_match renesas_rzfive_match[] = { const struct platform_override renesas_rzfive = { .match_table = renesas_rzfive_match, .early_init = renesas_rzfive_early_init, + .final_init = renesas_rzfive_final_init, };
On the Renesas RZ/Five SoC by default we want to configure 128MiB of memory ranging from 0x58000000 as a non-cacheable + bufferable region in the PMA and populate this region as PMA reserve DT node with shared DMA pool and no-map flags set so that Linux drivers requesting any DMA'able memory go through this region. PMA node passed to the above stack: reserved-memory { #address-cells = <2>; #size-cells = <2>; ranges; pma_resv0@58000000 { compatible = "shared-dma-pool"; reg = <0x0 0x58000000 0x0 0x08000000>; no-map; linux,dma-default; }; }; Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com> --- platform/generic/Kconfig | 1 + platform/generic/renesas/rzfive/rzfive.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+)