Hi Chun-Kuang Sorry for typo. In fact, the dts of new SoC is not upstream yet. I'm so sorry for couldn't show the detail now. How about the configurable MAX_RESERVED_REGIONS size like this patch? https://patchwork.kernel.org/patch/10692101/ On Sun, 2020-10-04 at 21:05 +0800, Chun-Kuang Hu wrote: > Hi, Phil: > > Phil Chang <phil.chang@xxxxxxxxxxxx> 於 2020年10月4日 週日 下午1:51寫道： > > > > Certain SoCs need to support large amount of reserved memory > > regions, especially to follow the GKI rules from Google. > > In MTK new SoC requires more than 68 regions of reserved memory > > for each IP's usage, such as load firmware to specific sapce, > > space > > > so that need to reserve more regisions > > regions. > > I guess this requirement is from Mediatek SoC, but I find below device > tree and just find one reserved memory region, > > arch/arm64/boot/dts/mediatek/mt7622.dtsi > arch/arm64/boot/dts/mediatek/mt8173.dtsi > arch/arm64/boot/dts/mediatek/mt8516.dtsi > > Could you show me the 68 regions? > > Regards, > Chun-Kuang. > > > > > Signed-off-by: Joe Liu <joe.liu@xxxxxxxxxxxx> > > Signed-off-by: YJ Chiang <yj.chiang@xxxxxxxxxxxx> > > Signed-off-by: Alix Wu <alix.wu@xxxxxxxxxxxx> > > Signed-off-by: Phil Chang <phil.chang@xxxxxxxxxxxx> > > --- > > drivers/of/of_reserved_mem.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c > > index 46b9371c8a33..595f0741dcef 100644 > > --- a/drivers/of/of_reserved_mem.c > > +++ b/drivers/of/of_reserved_mem.c > > @@ -22,7 +22,7 @@ > > #include <linux/slab.h> > > #include <linux/memblock.h> > > > > -#define MAX_RESERVED_REGIONS 64 > > +#define MAX_RESERVED_REGIONS 128 > > static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS]; > > static int reserved_mem_count; > > > > -- > > 2.18.0 > > _______________________________________________ > > Linux-mediatek mailing list > > Linux-mediatek@xxxxxxxxxxxxxxxxxxx > > http://lists.infradead.org/mailman/listinfo/linux-mediatek
