From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
qemu-devel@nongnu.org, laurent@vivier.eu
Subject: Re: [PATCH 04/20] nubus: use bitmap to manage available slots
Date: Sun, 12 Sep 2021 19:48:16 +0200 [thread overview]
Message-ID: <10394c05-6cb4-3851-e9fc-967c400061ba@amsat.org> (raw)
In-Reply-To: <20210912074914.22048-5-mark.cave-ayland@ilande.co.uk>
On 9/12/21 9:48 AM, Mark Cave-Ayland wrote:
> Convert nubus_device_realize() to use a bitmap to manage available slots to allow
> for future Nubus devices to be plugged into arbitrary slots from the command line.
>
> Update mac_nubus_bridge_init() to only allow slots 0x9 to 0xe on a Macintosh
> machines as documented in "Desigining Cards and Drivers for the Macintosh Family".
>
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> ---
> hw/nubus/mac-nubus-bridge.c | 3 +++
> hw/nubus/nubus-bus.c | 2 +-
> hw/nubus/nubus-device.c | 33 +++++++++++++++++++++++++++------
> include/hw/nubus/nubus.h | 4 ++--
> 4 files changed, 33 insertions(+), 9 deletions(-)
>
> diff --git a/hw/nubus/mac-nubus-bridge.c b/hw/nubus/mac-nubus-bridge.c
> index 7c329300b8..6e78f4c0b3 100644
> --- a/hw/nubus/mac-nubus-bridge.c
> +++ b/hw/nubus/mac-nubus-bridge.c
> @@ -18,6 +18,9 @@ static void mac_nubus_bridge_init(Object *obj)
>
> s->bus = NUBUS_BUS(qbus_create(TYPE_NUBUS_BUS, DEVICE(s), NULL));
>
> + /* Macintosh only has slots 0x9 to 0xe available */
> + s->bus->slot_available_mask = 0x7e00;
So MAKE_64BIT_MASK(9, 6),
> sysbus_init_mmio(sbd, &s->bus->super_slot_io);
> sysbus_init_mmio(sbd, &s->bus->slot_io);
> }
> diff --git a/hw/nubus/nubus-bus.c b/hw/nubus/nubus-bus.c
> index 5c13452308..f6d3655f51 100644
> --- a/hw/nubus/nubus-bus.c
> +++ b/hw/nubus/nubus-bus.c
> @@ -84,7 +84,7 @@ static void nubus_init(Object *obj)
> nubus, "nubus-slots",
> NUBUS_SLOT_NB * NUBUS_SLOT_SIZE);
>
> - nubus->current_slot = NUBUS_FIRST_SLOT;
> + nubus->slot_available_mask = 0xffff;
and MAKE_64BIT_MASK(0, 16)?
> }
next prev parent reply other threads:[~2021-09-12 18:08 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-12 7:48 [PATCH 00/20] nubus: bus, device, bridge, IRQ and address space improvements Mark Cave-Ayland
2021-09-12 7:48 ` [PATCH 01/20] nubus-device: rename slot_nb variable to slot Mark Cave-Ayland
2021-09-12 15:09 ` Philippe Mathieu-Daudé
2021-09-12 7:48 ` [PATCH 02/20] nubus-device: expose separate super slot memory region Mark Cave-Ayland
2021-09-12 15:50 ` Philippe Mathieu-Daudé
2021-09-12 17:20 ` Mark Cave-Ayland
2021-09-12 17:31 ` Philippe Mathieu-Daudé
2021-09-12 7:48 ` [PATCH 03/20] nubus-device: add device slot parameter Mark Cave-Ayland
2021-09-12 15:15 ` Philippe Mathieu-Daudé
2021-09-12 16:43 ` Mark Cave-Ayland
2021-09-12 7:48 ` [PATCH 04/20] nubus: use bitmap to manage available slots Mark Cave-Ayland
2021-09-12 17:48 ` Philippe Mathieu-Daudé [this message]
2021-09-14 20:27 ` Mark Cave-Ayland
2021-09-12 7:48 ` [PATCH 05/20] nubus: move slot bitmap checks from NubusDevice realize() to BusClass check_address() Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 06/20] nubus: implement BusClass get_dev_path() Mark Cave-Ayland
2021-09-12 15:16 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 07/20] nubus: add trace-events for unassigned slot accesses Mark Cave-Ayland
2021-09-12 15:18 ` Philippe Mathieu-Daudé
2021-09-12 16:45 ` Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 08/20] nubus: generate bus error when attempting to access empty slots Mark Cave-Ayland
2021-09-12 15:19 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 09/20] macfb: don't register declaration ROM Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 10/20] nubus-device: remove nubus_register_rom() and nubus_register_format_block() Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 11/20] nubus-device: add romfile property for loading declaration ROMs Mark Cave-Ayland
2021-09-12 17:39 ` Philippe Mathieu-Daudé
2021-09-14 20:23 ` Mark Cave-Ayland
2021-09-15 8:16 ` Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 12/20] nubus: move nubus to its own 32-bit address space Mark Cave-Ayland
2021-09-12 15:22 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 13/20] nubus-bridge: introduce separate NubusBridge structure Mark Cave-Ayland
2021-09-12 15:23 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 14/20] mac-nubus-bridge: rename MacNubusState to MacNubusBridge Mark Cave-Ayland
2021-09-12 15:23 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 15/20] nubus: move NubusBus from mac-nubus-bridge to nubus-bridge Mark Cave-Ayland
2021-09-12 15:25 ` Philippe Mathieu-Daudé
2021-09-12 7:49 ` [PATCH 16/20] nubus-bridge: embed the NubusBus object directly within nubus-bridge Mark Cave-Ayland
2021-09-12 15:26 ` Philippe Mathieu-Daudé
2021-09-12 17:43 ` Philippe Mathieu-Daudé
2021-09-14 20:26 ` Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 17/20] nubus-bridge: make slot_available_mask a qdev property Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 18/20] nubus: add support for slot IRQs Mark Cave-Ayland
2021-09-12 16:00 ` Philippe Mathieu-Daudé
2021-09-12 17:05 ` Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 19/20] q800: wire up nubus IRQs Mark Cave-Ayland
2021-09-12 7:49 ` [PATCH 20/20] q800: configure nubus available slots for Quadra 800 Mark Cave-Ayland
2021-09-12 15:47 ` [PATCH 00/20] nubus: bus, device, bridge, IRQ and address space improvements Philippe Mathieu-Daudé
2021-09-12 16:56 ` Mark Cave-Ayland
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