Re: [PATCH v4 0/1] MR4466: win32u/winex11: Add the GPU device physical memory registry

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/win32u/sysparams.c:
> set_reg_value( hkey, chip_typeW, REG_BINARY, desc, size );
>      set_reg_value( hkey, dac_typeW, REG_BINARY, ramdacW, sizeof(ramdacW) );
>
> +    gpu_qw_memory_size = gpu->memory_size;
> +
> +    /* We failed to retrieve the gpu memory size set a default of 4Gb */
> +    if (!gpu_qw_memory_size)
> +    {
> +        gpu_qw_memory_size = 4294967296LL;

On second thought, let's use a smaller amount like 1G. If a GPU doesn't support Vulkan, it must be one of the old GPUs. Reporting a large amount
might let applications think it's okay to use that much memory so smaller ones seem safer here.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/4466#note_53647