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From: "Cédric Le Goater" <clg@kaod.org>
To: Jamin Lin <jamin_lin@aspeedtech.com>,
	Peter Maydell <peter.maydell@linaro.org>,
	Steven Lee <steven_lee@aspeedtech.com>,
	Troy Lee <leetroy@gmail.com>,
	Andrew Jeffery <andrew@codeconstruct.com.au>,
	Joel Stanley <joel@jms.id.au>,
	"open list:All patches CC here" <qemu-devel@nongnu.org>,
	"open list:ASPEED BMCs" <qemu-arm@nongnu.org>
Cc: troy_lee@aspeedtech.com
Subject: Re: [PATCH v4 18/23] hw/arm/aspeed_ast27x0: Support two levels of INTC controllers for AST2700 A1
Date: Tue, 4 Mar 2025 08:17:11 +0100	[thread overview]
Message-ID: <fe3204a9-9df7-46dc-a42b-a39b4b5dd945@kaod.org> (raw)
In-Reply-To: <20250303095457.2337631-19-jamin_lin@aspeedtech.com>

On 3/3/25 10:54, Jamin Lin wrote:
> The design of INTC controllers has significantly changed in AST2700 A1.
> 
> There are a total of 480 interrupt sources in AST2700 A1. For interrupt numbers
> from 0 to 127, they can route directly to PSP, SSP, and TSP. Due to the
> limitation of interrupt numbers of processors, the interrupts are merged every
> 32 sources for interrupt numbers greater than 127.
> 
> There are two levels of interrupt controllers, INTC(CPUD Die) and INTCIO
> (IO Die). The interrupt sources of INTC are the interrupt numbers from INTC_0 to
> INTC_127 and interrupts from INTCIO. The interrupt sources of INTCIO are the
> interrupt numbers greater than INTC_127. INTC_IO controls the interrupts
> INTC_128 to INTC_319 only.
> 
> Currently, only GIC 192 to 201 are supported, and their source interrupts are
> from INTCIO and connected to INTC at input pin 0 and output pins 0 to 9 for
> GIC 192-201.
> 
> The design of the orgates for GICINT 196 is as follows:
> It has interrupt sources ranging from 0 to 31, with its output pin connected to
> INTCIO "T0 GICINT_196". The output pin is then connected to INTC "GIC_192_201"
> at bit 4, and its bit 4 output should be connected to GIC 196.
> The design of INTC GIC_192_201 have 10 output pins, mapped as following:
> Bit 0 -> GIC 192
> Bit 1 -> GIC 193
> Bit 2 -> GIC 194
> Bit 3 -> GIC 195
> Bit 4 -> GIC 196
> 
> To support both AST2700 A1 and A0, INTC input pins 1 to 9 and output pins
> 10 to 18 remain to support GIC 128-136, which source interrupts from INTC.
> These will be removed if we decide not to support AST2700 A0 in the future.
> 
> |-------------------------------------------------------------------------------------------------------|
> |                                                   AST2700 A1 Design                                   |
> |           To GICINT196                                                                                |
> |                                                                                                       |
> |   ETH1    |-----------|                    |--------------------------|        |--------------|       |
> |  -------->|0          |                    |         INTCIO           |        |  orgates[0]  |       |
> |   ETH2    |          4|   orgates[0]------>|inpin[0]-------->outpin[0]|------->| 0            |       |
> |  -------->|1         5|   orgates[1]------>|inpin[1]-------->outpin[1]|------->| 1            |       |
> |   ETH3    |          6|   orgates[2]------>|inpin[2]-------->outpin[2]|------->| 2            |       |
> |  -------->|2        19|   orgates[3]------>|inpin[3]-------->outpin[3]|------->| 3  OR[0:9]   |-----| |
> |   UART0   |         20|-->orgates[4]------>|inpin[4]-------->outpin[4]|------->| 4            |     | |
> |  -------->|7        21|   orgates[5]------>|inpin[5]-------->outpin[5]|------->| 5            |     | |
> |   UART1   |         22|   orgates[6]------>|inpin[6]-------->outpin[6]|------->| 6            |     | |
> |  -------->|8        23|   orgates[7]------>|inpin[7]-------->outpin[7]|------->| 7            |     | |
> |   UART2   |         24|   orgates[8]------>|inpin[8]-------->outpin[8]|------->| 8            |     | |
> |  -------->|9        25|   orgates[9]------>|inpin[9]-------->outpin[9]|------->| 9            |     | |
> |   UART3   |         26|                    |--------------------------|        |--------------|     | |
> |  ---------|10       27|                                                                             | |
> |   UART5   |         28|                                                                             | |
> |  -------->|11       29|                                                                             | |
> |   UART6   |           |                                                                             | |
> |  -------->|12       30|     |-----------------------------------------------------------------------| |
> |   UART7   |         31|     |                                                                         |
> |  -------->|13         |     |                                                                         |
> |   UART8   |  OR[0:31] |     |                |------------------------------|           |----------|  |
> |  -------->|14         |     |                |            INTC              |           |     GIC  |  |
> |   UART9   |           |     |                |inpin[0:0]--------->outpin[0] |---------->|192       |  |
> |  -------->|15         |     |                |inpin[0:1]--------->outpin[1] |---------->|193       |  |
> |   UART10  |           |     |                |inpin[0:2]--------->outpin[2] |---------->|194       |  |
> |  -------->|16         |     |                |inpin[0:3]--------->outpin[3] |---------->|195       |  |
> |   UART11  |           |     |--------------> |inpin[0:4]--------->outpin[4] |---------->|196       |  |
> |  -------->|17         |                      |inpin[0:5]--------->outpin[5] |---------->|197       |  |
> |   UART12  |           |                      |inpin[0:6]--------->outpin[6] |---------->|198       |  |
> |  -------->|18         |                      |inpin[0:7]--------->outpin[7] |---------->|199       |  |
> |           |-----------|                      |inpin[0:8]--------->outpin[8] |---------->|200       |  |
> |                                              |inpin[0:9]--------->outpin[9] |---------->|201       |  |
> |-------------------------------------------------------------------------------------------------------|
> |-------------------------------------------------------------------------------------------------------|
> |  ETH1    |-----------|     orgates[1]------->|inpin[1]----------->outpin[10]|---------->|128       |  |
> | -------->|0          |     orgates[2]------->|inpin[2]----------->outpin[11]|---------->|129       |  |
> |  ETH2    |          4|     orgates[3]------->|inpin[3]----------->outpin[12]|---------->|130       |  |
> | -------->|1         5|     orgates[4]------->|inpin[4]----------->outpin[13]|---------->|131       |  |
> |  ETH3    |          6|---->orgates[5]------->|inpin[5]----------->outpin[14]|---------->|132       |  |
> | -------->|2        19|     orgates[6]------->|inpin[6]----------->outpin[15]|---------->|133       |  |
> |  UART0   |         20|     orgates[7]------->|inpin[7]----------->outpin[16]|---------->|134       |  |
> | -------->|7        21|     orgates[8]------->|inpin[8]----------->outpin[17]|---------->|135       |  |
> |  UART1   |         22|     orgates[9]------->|inpin[9]----------->outpin[18]|---------->|136       |  |
> | -------->|8        23|                       |------------------------------|           |----------|  |
> |  UART2   |         24|                                                                                |
> | -------->|9        25|                       AST2700 A0 Design                                        |
> |  UART3   |         26|                                                                                |
> | -------->|10       27|                                                                                |
> |  UART5   |         28|                                                                                |
> | -------->|11       29| GICINT132                                                                      |
> |  UART6   |           |                                                                                |
> | -------->|12       30|                                                                                |
> |  UART7   |         31|                                                                                |
> | -------->|13         |                                                                                |
> |  UART8   |  OR[0:31] |                                                                                |
> | -------->|14         |                                                                                |
> |  UART9   |           |                                                                                |
> | -------->|15         |                                                                                |
> |  UART10  |           |                                                                                |
> | -------->|16         |                                                                                |
> |  UART11  |           |                                                                                |
> | -------->|17         |                                                                                |
> |  UART12  |           |                                                                                |
> | -------->|18         |                                                                                |
> |          |-----------|                                                                                |
> |                                                                                                       |
> |-------------------------------------------------------------------------------------------------------|
> 
> Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
> ---
>   include/hw/arm/aspeed_soc.h |  3 +-
>   hw/arm/aspeed_ast27x0.c     | 84 ++++++++++++++++++++++++++++---------
>   2 files changed, 66 insertions(+), 21 deletions(-)
> 
> diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
> index 689f52dae8..62f75c33dc 100644
> --- a/include/hw/arm/aspeed_soc.h
> +++ b/include/hw/arm/aspeed_soc.h
> @@ -128,7 +128,7 @@ struct Aspeed27x0SoCState {
>       AspeedSoCState parent;
>   
>       ARMCPU cpu[ASPEED_CPUS_NUM];
> -    AspeedINTCState intc;
> +    AspeedINTCState intc[2];

I would separate the ast2700_gic_intcmap changes from the introduction of the
extra AspeedINTCState.

>       GICv3State gic;
>       MemoryRegion dram_empty;
>   };
> @@ -195,6 +195,7 @@ enum {
>       ASPEED_DEV_EHCI2,
>       ASPEED_DEV_VIC,
>       ASPEED_DEV_INTC,
> +    ASPEED_DEV_INTCIO,
>       ASPEED_DEV_SDMC,
>       ASPEED_DEV_SCU,
>       ASPEED_DEV_ADC,
> diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c
> index eab9674b6c..028bf08d0e 100644
> --- a/hw/arm/aspeed_ast27x0.c
> +++ b/hw/arm/aspeed_ast27x0.c
> @@ -57,6 +57,7 @@ static const hwaddr aspeed_soc_ast2700_memmap[] = {
>       [ASPEED_DEV_ETH3]      =  0x14070000,
>       [ASPEED_DEV_EMMC]      =  0x12090000,
>       [ASPEED_DEV_INTC]      =  0x12100000,
> +    [ASPEED_DEV_INTCIO]    =  0x14C18000,
>       [ASPEED_DEV_SLI]       =  0x12C17000,
>       [ASPEED_DEV_SLIIO]     =  0x14C1E000,
>       [ASPEED_GIC_DIST]      =  0x12200000,

one day, we should reorder the memmap arrays by mapping address.


Thanks,

C.



> @@ -178,32 +179,48 @@ static const int ast2700_gic133_gic197_intcmap[] = {
>   /* GICINT 192 ~ 201 */
>   struct gic_intc_irq_info {
>       int irq;
> +    int intc_idx;
> +    int orgate_idx;
>       const int *ptr;
>   };
>   
>   static const struct gic_intc_irq_info ast2700_gic_intcmap[] = {
> -    {128,  ast2700_gic128_gic192_intcmap},
> -    {129,  NULL},
> -    {130,  ast2700_gic130_gic194_intcmap},
> -    {131,  ast2700_gic131_gic195_intcmap},
> -    {132,  ast2700_gic132_gic196_intcmap},
> -    {133,  ast2700_gic133_gic197_intcmap},
> -    {134,  NULL},
> -    {135,  NULL},
> -    {136,  NULL},
> +    {192, 1, 0, ast2700_gic128_gic192_intcmap},
> +    {193, 1, 1, NULL},
> +    {194, 1, 2, ast2700_gic130_gic194_intcmap},
> +    {195, 1, 3, ast2700_gic131_gic195_intcmap},
> +    {196, 1, 4, ast2700_gic132_gic196_intcmap},
> +    {197, 1, 5, ast2700_gic133_gic197_intcmap},
> +    {198, 1, 6, NULL},
> +    {199, 1, 7, NULL},
> +    {200, 1, 8, NULL},
> +    {201, 1, 9, NULL},
> +    {128, 0, 1, ast2700_gic128_gic192_intcmap},
> +    {129, 0, 2, NULL},
> +    {130, 0, 3, ast2700_gic130_gic194_intcmap},
> +    {131, 0, 4, ast2700_gic131_gic195_intcmap},
> +    {132, 0, 5, ast2700_gic132_gic196_intcmap},
> +    {133, 0, 6, ast2700_gic133_gic197_intcmap},
> +    {134, 0, 7, NULL},
> +    {135, 0, 8, NULL},
> +    {136, 0, 9, NULL},
>   };
>   static qemu_irq aspeed_soc_ast2700_get_irq(AspeedSoCState *s, int dev)>   {
>       Aspeed27x0SoCState *a = ASPEED27X0_SOC(s);
>       AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> +    int or_idx;
> +    int idx;
>       int i;
>   
>       for (i = 0; i < ARRAY_SIZE(ast2700_gic_intcmap); i++) {
>           if (sc->irqmap[dev] == ast2700_gic_intcmap[i].irq) {
>               assert(ast2700_gic_intcmap[i].ptr);
> -            return qdev_get_gpio_in(DEVICE(&a->intc.orgates[i]),
> -                ast2700_gic_intcmap[i].ptr[dev]);
> +            or_idx = ast2700_gic_intcmap[i].orgate_idx;
> +            idx = ast2700_gic_intcmap[i].intc_idx;
> +            return qdev_get_gpio_in(DEVICE(&a->intc[idx].orgates[or_idx]),
> +                                    ast2700_gic_intcmap[i].ptr[dev]);
>           }
>       }
>   
> @@ -215,12 +232,16 @@ static qemu_irq aspeed_soc_ast2700_get_irq_index(AspeedSoCState *s, int dev,
>   {
>       Aspeed27x0SoCState *a = ASPEED27X0_SOC(s);
>       AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> +    int or_idx;
> +    int idx;
>       int i;
>   
>       for (i = 0; i < ARRAY_SIZE(ast2700_gic_intcmap); i++) {
>           if (sc->irqmap[dev] == ast2700_gic_intcmap[i].irq) {
>               assert(ast2700_gic_intcmap[i].ptr);
> -            return qdev_get_gpio_in(DEVICE(&a->intc.orgates[i]),
> +            or_idx = ast2700_gic_intcmap[i].orgate_idx;
> +            idx = ast2700_gic_intcmap[i].intc_idx;
> +            return qdev_get_gpio_in(DEVICE(&a->intc[idx].orgates[or_idx]),
>                                       ast2700_gic_intcmap[i].ptr[dev] + index);
>           }
>       }
> @@ -390,7 +411,9 @@ static void aspeed_soc_ast2700_init(Object *obj)
>   
>       object_initialize_child(obj, "sli", &s->sli, TYPE_ASPEED_2700_SLI);
>       object_initialize_child(obj, "sliio", &s->sliio, TYPE_ASPEED_2700_SLIIO);
> -    object_initialize_child(obj, "intc", &a->intc, TYPE_ASPEED_2700_INTC);
> +    object_initialize_child(obj, "intc", &a->intc[0], TYPE_ASPEED_2700_INTC);
> +    object_initialize_child(obj, "intcio", &a->intc[1],
> +                            TYPE_ASPEED_2700_INTCIO);
>   
>       snprintf(typename, sizeof(typename), "aspeed.adc-%s", socname);
>       object_initialize_child(obj, "adc", &s->adc, typename);
> @@ -532,27 +555,48 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp)
>       }
>   
>       /* INTC */
> -    if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc), errp)) {
> +    if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[0]), errp)) {
>           return;
>       }
>   
> -    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->intc), 0,
> +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->intc[0]), 0,
>                       sc->memmap[ASPEED_DEV_INTC]);
>   
> +    /* INTCIO */
> +    if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[1]), errp)) {
> +        return;
> +    }
> +
> +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->intc[1]), 0,
> +                    sc->memmap[ASPEED_DEV_INTCIO]);
> +
>       /* irq sources -> orgates -> INTC */
> -    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc)->num_inpins; i++) {
> -        qdev_connect_gpio_out(DEVICE(&a->intc.orgates[i]), 0,
> -                              qdev_get_gpio_in(DEVICE(&a->intc), i));
> +    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_inpins; i++) {
> +        qdev_connect_gpio_out(DEVICE(&a->intc[0].orgates[i]), 0,
> +                              qdev_get_gpio_in(DEVICE(&a->intc[0]), i));
>       }
>   
>       /* INTC -> GIC192 - GIC201 */
>       /* INTC -> GIC128 - GIC136 */
> -    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc)->num_outpins; i++) {
> -        sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc), i,
> +    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_outpins; i++) {
> +        assert(i < ARRAY_SIZE(ast2700_gic_intcmap));
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[0]), i,
>                              qdev_get_gpio_in(DEVICE(&a->gic),
>                                               ast2700_gic_intcmap[i].irq));
>       }
>   
> +    /* irq source -> orgates -> INTCIO */
> +    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_inpins; i++) {
> +        qdev_connect_gpio_out(DEVICE(&a->intc[1].orgates[i]), 0,
> +                              qdev_get_gpio_in(DEVICE(&a->intc[1]), i));
> +    }
> +
> +    /* INTCIO -> INTC */
> +    for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_outpins; i++) {
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[1]), i,
> +                           qdev_get_gpio_in(DEVICE(&a->intc[0].orgates[0]), i));
> +    }
> +
>       /* SRAM */
>       sram_name = g_strdup_printf("aspeed.sram.%d", CPU(&a->cpu[0])->cpu_index);
>       if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size,



  reply	other threads:[~2025-03-04  7:18 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-03  9:54 [PATCH v4 00/23] Support AST2700 A1 Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 01/23] hw/intc/aspeed: Support setting different memory size Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 02/23] hw/intc/aspeed: Support setting different register sizes Jamin Lin via
2025-03-03 13:54   ` Cédric Le Goater
2025-03-04 10:03     ` Jamin Lin
2025-03-04 10:43       ` Cédric Le Goater
2025-03-03  9:54 ` [PATCH v4 03/23] hw/intc/aspeed: Reduce regs array size by adding a register sub-region Jamin Lin via
2025-03-03 14:21   ` Cédric Le Goater
2025-03-05  4:05     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 04/23] hw/intc/aspeed: Introduce helper functions for enable and status registers Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 05/23] hw/intc/aspeed: Add object type name to trace events for better debugging Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 06/23] hw/arm/aspeed: Rename IRQ table and machine name for AST2700 A0 Jamin Lin via
2025-03-03 14:23   ` Cédric Le Goater
2025-03-04  2:55     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 07/23] hw/arm/aspeed_ast27x0: Sort the IRQ table by IRQ number Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 08/23] hw/intc/aspeed: Support different memory region ops Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 09/23] hw/intc/aspeed: Rename num_ints to num_inpins for clarity Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 10/23] hw/intc/aspeed: Add support for multiple output pins in INTC Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 11/23] hw/intc/aspeed: Refactor INTC to support separate input and output pin indices Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 12/23] hw/intc/aspeed: Introduce AspeedINTCIRQ structure to save the irq index and register address Jamin Lin via
2025-03-04  6:52   ` Cédric Le Goater
2025-03-05  5:24     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 13/23] hw/intc/aspeed: Introduce IRQ handler function to reduce code duplication Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 14/23] hw/intc/aspeed: Add Support for Multi-Output IRQ Handling Jamin Lin via
2025-03-04  7:21   ` Cédric Le Goater
2025-03-06  2:26     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 15/23] hw/intc/aspeed: Add Support for AST2700 INTCIO Controller Jamin Lin via
2025-03-04  7:08   ` Cédric Le Goater
2025-03-03  9:54 ` [PATCH v4 16/23] hw/misc/aspeed_scu: Add Support for AST2700/AST2750 A1 Silicon Revisions Jamin Lin via
2025-03-03  9:54 ` [PATCH v4 17/23] hw/arm/aspeed_ast27x0.c Support AST2700 A1 GIC Interrupt Mapping Jamin Lin via
2025-03-04  7:12   ` Cédric Le Goater
2025-03-06  6:32     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 18/23] hw/arm/aspeed_ast27x0: Support two levels of INTC controllers for AST2700 A1 Jamin Lin via
2025-03-04  7:17   ` Cédric Le Goater [this message]
2025-03-06  8:29     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 19/23] hw/arm/aspeed: Add SoC and Machine Support " Jamin Lin via
2025-03-03 17:41   ` Cédric Le Goater
2025-03-04  5:30     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 20/23] tests/functional/aspeed: Introduce start_ast2700_test API and update hwmon path Jamin Lin via
2025-03-03 16:47   ` Cédric Le Goater
2025-03-04  3:33     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 21/23] tests/functional/aspeed: Update test ASPEED SDK v09.05 Jamin Lin via
2025-03-03 16:50   ` Cédric Le Goater
2025-03-04  3:48     ` Jamin Lin
2025-03-03  9:54 ` [PATCH v4 22/23] tests/functional/aspeed: Add test case for AST2700 A1 Jamin Lin via
2025-03-03 16:50   ` Cédric Le Goater
2025-03-03  9:54 ` [PATCH v4 23/23] docs/specs: Add aspeed-intc Jamin Lin via
2025-03-04  7:26   ` Cédric Le Goater

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