Re: [Xen-devel] [PATCH 14/32] piix4: add a i8257 dma controller as specified in datasheet

[Aleksandar Markovic <aleksandar.m.mail@xxxxxxxxx>]

On Tuesday, October 15, 2019, Philippe Mathieu-Daudé <philmd@xxxxxxxxxx> wrote:
> From: Hervé Poussineau <hpoussin@xxxxxxxxxxx>
>
> Remove i8257 instanciated in malta board, to not have it twice.
>
> Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Signed-off-by: Hervé Poussineau <hpoussin@xxxxxxxxxxx>
> Message-Id: <20171216090228.28505-9-hpoussin@xxxxxxxxxxx>
> [PMD: rebased]
> Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
> ---
>  hw/isa/piix4.c       | 4 ++++
>  hw/mips/mips_malta.c | 2 --
>  2 files changed, 4 insertions(+), 2 deletions(-)

Reviewed-by: Aleksandar Markovic <amarkovic@xxxxxxxxxxxx>

 

> diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
> index 8998b0ca47..1bc91b590c 100644
> --- a/hw/isa/piix4.c
> +++ b/hw/isa/piix4.c
> @@ -29,6 +29,7 @@
>  #include "hw/pci/pci.h"
>  #include "hw/isa/isa.h"
>  #include "hw/sysbus.h"
> +#include "hw/dma/i8257.h"
>  #include "migration/vmstate.h"
>  #include "sysemu/reset.h"
>  #include "sysemu/runstate.h"
> @@ -164,6 +165,9 @@ static void piix4_realize(PCIDevice *pci_dev, Error **errp)
>      /* initialize ISA irqs */
>      isa_bus_irqs(isa_bus, s->isa);
>
> +    /* DMA */
> +    i8257_dma_init(isa_bus, 0);
> +
>      piix4_dev = pci_dev;
>  }
>
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index e499b7a6bb..df247177ca 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -28,7 +28,6 @@
>  #include "cpu.h"
>  #include "hw/i386/pc.h"
>  #include "hw/isa/superio.h"
> -#include "hw/dma/i8257.h"
>  #include "hw/char/serial.h"
>  #include "net/net.h"
>  #include "hw/boards.h"
> @@ -1430,7 +1429,6 @@ void mips_malta_init(MachineState *machine)
>      smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100,
>                            isa_get_irq(NULL, 9), NULL, 0, NULL);
>      pit = i8254_pit_init(isa_bus, 0x40, 0, NULL);
> -    i8257_dma_init(isa_bus, 0);
>      mc146818_rtc_init(isa_bus, 2000, NULL);
>
>      /* generate SPD EEPROM data */
> -- 
> 2.21.0
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