Hi Jingyi,
On 7/2/20 5:01 AM, Jingyi Wang wrote:
> If gicv4.1(sgi hardware injection) supported, we test ipi injection
> via hw/sw way separately.
>
> Signed-off-by: Jingyi Wang <wangjingyi11@xxxxxxxxxx>
> ---
> arm/micro-bench.c | 45 +++++++++++++++++++++++++++++++++++++++-----
> lib/arm/asm/gic-v3.h | 3 +++
> lib/arm/asm/gic.h | 1 +
> 3 files changed, 44 insertions(+), 5 deletions(-)
>
> diff --git a/arm/micro-bench.c b/arm/micro-bench.c
> index fc4d356..80d8db3 100644
> --- a/arm/micro-bench.c
> +++ b/arm/micro-bench.c
> @@ -91,9 +91,40 @@ static void gic_prep_common(void)
> assert(irq_ready);
> }
>
> -static void ipi_prep(void)
> +static bool ipi_prep(void)
Any reason why the bool returned value is preferred over the standard int?
> {
> + u32 val;
> +
> + val = readl(vgic_dist_base + GICD_CTLR);
> + if (readl(vgic_dist_base + GICD_TYPER2) & GICD_TYPER2_nASSGIcap) {
> + val &= ~GICD_CTLR_ENABLE_G1A;
> + val &= ~GICD_CTLR_nASSGIreq;
> + writel(val, vgic_dist_base + GICD_CTLR);
> + val |= GICD_CTLR_ENABLE_G1A;
> + writel(val, vgic_dist_base + GICD_CTLR);
Why do we need this G1A dance?
> + }
> +
> gic_prep_common();
> + return true;
> +}
> +
> +static bool ipi_hw_prep(void)
> +{
> + u32 val;
> +
> + val = readl(vgic_dist_base + GICD_CTLR);
> + if (readl(vgic_dist_base + GICD_TYPER2) & GICD_TYPER2_nASSGIcap) {
> + val &= ~GICD_CTLR_ENABLE_G1A;
> + val |= GICD_CTLR_nASSGIreq;
> + writel(val, vgic_dist_base + GICD_CTLR);
> + val |= GICD_CTLR_ENABLE_G1A;
> + writel(val, vgic_dist_base + GICD_CTLR);
> + } else {
> + return false;
> + }
> +
> + gic_prep_common();
> + return true;
> }
>
> static void ipi_exec(void)
> @@ -147,7 +178,7 @@ static void eoi_exec(void)
>
> struct exit_test {
> const char *name;
> - void (*prep)(void);
> + bool (*prep)(void);
> void (*exec)(void);
> bool run;
> };
> @@ -158,6 +189,7 @@ static struct exit_test tests[] = {
> {"mmio_read_vgic", NULL, mmio_read_vgic_exec, true},
> {"eoi", NULL, eoi_exec, true},
> {"ipi", ipi_prep, ipi_exec, true},
> + {"ipi_hw", ipi_hw_prep, ipi_exec, true},
> };
>
> struct ns_time {
> @@ -181,9 +213,12 @@ static void loop_test(struct exit_test *test)
> uint64_t start, end, total_ticks, ntimes = NTIMES;
> struct ns_time total_ns, avg_ns;
>
> - if (test->prep)
> - test->prep();
> -
> + if (test->prep) {
> + if(!test->prep()) {
> + printf("%s test skipped\n", test->name);
> + return;
> + }
> + }
> isb();
> start = read_sysreg(cntpct_el0);
> while (ntimes--)
> diff --git a/lib/arm/asm/gic-v3.h b/lib/arm/asm/gic-v3.h
> index cb72922..b4ce130 100644
> --- a/lib/arm/asm/gic-v3.h
> +++ b/lib/arm/asm/gic-v3.h
> @@ -20,10 +20,13 @@
> */
> #define GICD_CTLR 0x0000
> #define GICD_CTLR_RWP (1U << 31)
> +#define GICD_CTLR_nASSGIreq (1U << 8)
> #define GICD_CTLR_ARE_NS (1U << 4)
> #define GICD_CTLR_ENABLE_G1A (1U << 1)
> #define GICD_CTLR_ENABLE_G1 (1U << 0)
>
> +#define GICD_TYPER2_nASSGIcap (1U << 8)
> +
> /* Re-Distributor registers, offsets from RD_base */
> #define GICR_TYPER 0x0008
>
> diff --git a/lib/arm/asm/gic.h b/lib/arm/asm/gic.h
> index 38e79b2..1898400 100644
> --- a/lib/arm/asm/gic.h
> +++ b/lib/arm/asm/gic.h
> @@ -13,6 +13,7 @@
> #define GICD_CTLR 0x0000
> #define GICD_TYPER 0x0004
> #define GICD_IIDR 0x0008
> +#define GICD_TYPER2 0x000C
> #define GICD_IGROUPR 0x0080
> #define GICD_ISENABLER 0x0100
> #define GICD_ICENABLER 0x0180
>
Thanks
Eric
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