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).
Regards,
Luben
> +};
>
> /*
> ***************************************************************************
>
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