On Fri, Oct 11, 2019 at 6:53 PM Tuikov, Luben <Luben.Tuikov@xxxxxxx> wrote:
>
> On 2019-10-10 11:50 p.m., Tianci Yin wrote:
> > From: "Tianci.Yin" <tianci.yin@xxxxxxx>
> >
> > add new vram_reserve_block structure and atomfirmware_internal_constants enumeration
> >
> > Change-Id: I6ba642ecd7ad94250162ae5c322ed8d85de9c35a
> > Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> > Signed-off-by: Tianci.Yin <tianci.yin@xxxxxxx>
> > ---
> > drivers/gpu/drm/amd/include/atomfirmware.h | 28 +++++++++++++++++-----
> > 1 file changed, 22 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
> > index e88541d67aa0..463c18e99d78 100644
> > --- a/drivers/gpu/drm/amd/include/atomfirmware.h
> > +++ b/drivers/gpu/drm/amd/include/atomfirmware.h
> > @@ -492,12 +492,13 @@ struct atom_firmware_info_v3_1
> > /* Total 32bit cap indication */
> > enum atombios_firmware_capability
> > {
> > - ATOM_FIRMWARE_CAP_FIRMWARE_POSTED = 0x00000001,
> > - ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION = 0x00000002,
> > - ATOM_FIRMWARE_CAP_WMI_SUPPORT = 0x00000040,
> > - ATOM_FIRMWARE_CAP_HWEMU_ENABLE = 0x00000080,
> > - ATOM_FIRMWARE_CAP_HWEMU_UMC_CFG = 0x00000100,
> > - ATOM_FIRMWARE_CAP_SRAM_ECC = 0x00000200,
> > + ATOM_FIRMWARE_CAP_FIRMWARE_POSTED = 0x00000001,
> > + ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION = 0x00000002,
> > + ATOM_FIRMWARE_CAP_WMI_SUPPORT = 0x00000040,
> > + ATOM_FIRMWARE_CAP_HWEMU_ENABLE = 0x00000080,
> > + ATOM_FIRMWARE_CAP_HWEMU_UMC_CFG = 0x00000100,
> > + ATOM_FIRMWARE_CAP_SRAM_ECC = 0x00000200,
> > + ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING = 0x00000400,
> > };
> >
> > enum atom_cooling_solution_id{
> > @@ -671,6 +672,21 @@ struct vram_usagebyfirmware_v2_1
> > uint16_t used_by_driver_in_kb;
> > };
> >
> > +/* This is part of vram_usagebyfirmware_v2_1 */
> > +struct vram_reserve_block
> > +{
> > + uint32_t start_address_in_kb;
> > + uint16_t used_by_firmware_in_kb;
> > + uint16_t used_by_driver_in_kb;
> > +};
> > +
> > +/* Definitions for constance */
> > +enum atomfirmware_internal_constants
> > +{
> > + ONE_K = 0x400,
> > + ONE_MEG = 0x100000,
> > + ONE_G = 0x40000000,
>
> So... this is pronounced in English as "One Gee", and even though
> I like it much much better due to what is actually says (no, it is not
> "one gigabyte"), I'd rather you called this "ONE_GiB".
>
> You do not have "One G" anywhere in this code. :-)
>
> To fit international standardization and the move Linux constants
> have been going to, name them this:
>
> ONE_KiB
> ONE_MiB
> ONE_GiB
>
> This means what it says and also that they are power of 2.
>
> ONE_GB (10^9) is less than ONE_GiB (2^30).
>
This file isn't owned by us. We are just syncing with their latest
updates. We try and stick to what they have pretty closely to avoid
conflicts in future updates.
Alex
> Regards,
> Luben
>
> > +};
> >
> > /*
> > ***************************************************************************
> >
>
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