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Re: [Qemu-devel] [PATCH 01/10] cuda: do not use old_mmio accesses
From: |
Laurent Vivier |
Subject: |
Re: [Qemu-devel] [PATCH 01/10] cuda: do not use old_mmio accesses |
Date: |
Mon, 5 Feb 2018 15:17:00 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 |
On 03/02/2018 11:37, Mark Cave-Ayland wrote:
> Signed-off-by: Mark Cave-Ayland <address@hidden>
> ---
> hw/misc/macio/cuda.c | 40 ++++++++--------------------------------
> 1 file changed, 8 insertions(+), 32 deletions(-)
>
> diff --git a/hw/misc/macio/cuda.c b/hw/misc/macio/cuda.c
> index 008d8bd4d5..23b7e0f5b0 100644
> --- a/hw/misc/macio/cuda.c
> +++ b/hw/misc/macio/cuda.c
> @@ -275,7 +275,7 @@ static void cuda_delay_set_sr_int(CUDAState *s)
> timer_mod(s->sr_delay_timer, expire);
> }
>
> -static uint32_t cuda_readb(void *opaque, hwaddr addr)
> +static uint64_t cuda_read(void *opaque, hwaddr addr, unsigned size)
> {
> CUDAState *s = opaque;
> uint32_t val;
> @@ -350,7 +350,7 @@ static uint32_t cuda_readb(void *opaque, hwaddr addr)
> return val;
> }
>
> -static void cuda_writeb(void *opaque, hwaddr addr, uint32_t val)
> +static void cuda_write(void *opaque, hwaddr addr, uint64_t val, unsigned
> size)
> {
> CUDAState *s = opaque;
>
> @@ -780,38 +780,14 @@ static void cuda_receive_packet_from_host(CUDAState *s,
> }
> }
>
> -static void cuda_writew (void *opaque, hwaddr addr, uint32_t value)
> -{
> -}
> -
> -static void cuda_writel (void *opaque, hwaddr addr, uint32_t value)
> -{
> -}
> -
> -static uint32_t cuda_readw (void *opaque, hwaddr addr)
> -{
> - return 0;
> -}
> -
> -static uint32_t cuda_readl (void *opaque, hwaddr addr)
> -{
> - return 0;
> -}
> -
> static const MemoryRegionOps cuda_ops = {
> - .old_mmio = {
> - .write = {
> - cuda_writeb,
> - cuda_writew,
> - cuda_writel,
> - },
> - .read = {
> - cuda_readb,
> - cuda_readw,
> - cuda_readl,
> - },
> - },
> + .read = cuda_read,
> + .write = cuda_write,
> .endianness = DEVICE_NATIVE_ENDIAN,
As CUDA Macintoshes are all big-endian, I think you should use
DEVICE_BIG_ENDIAN here, except if you are aware of a little-endian
machine using it in little-endian mode.
Thanks,
Laurent
- [Qemu-devel] [PATCH 00/10] cuda: various fixes, and move 6522 to separate device, Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 03/10] cuda: don't call cuda_update() when writing to ACR register, Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 07/10] cuda: set timer 1 frequency property to CUDA_TIMER_FREQ, Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 01/10] cuda: do not use old_mmio accesses, Mark Cave-Ayland, 2018/02/03
- Re: [Qemu-devel] [PATCH 01/10] cuda: do not use old_mmio accesses,
Laurent Vivier <=
- [Qemu-devel] [PATCH 02/10] cuda: don't allow writes to port output pins, Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 08/10] cuda: factor out timebase-derived counter value and load time, Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 04/10] cuda: introduce CUDAState parameter to get_counter(), Mark Cave-Ayland, 2018/02/03
- [Qemu-devel] [PATCH 06/10] cuda: minor cosmetic tidy-ups to get_next_irq_time(), Mark Cave-Ayland, 2018/02/03