Re: [gentoo-user] Re: Do I need firmware for an integrated graphics unit?

[Alan Mackenzie <acm@muc.de>]

Hello, Grant.

On Wed, Aug 21, 2024 at 00:30:25 -0000, Grant Edwards wrote:
> On 2024-08-20, Alan Mackenzie <acm@muc.de> wrote:

> > I've just treated myself to a new machine based on a Ryzen 9 7900
> > processor.  I chose the second newest generation so as not to get caught
> > out with not quite debugged systems like I did the last time round.

> > Anyhow, I'm up to the stage of configuring the kernel, and I'm stuck at
> > the bit where I need to specify the firmware to be incorporated into the
> > kernel for the integrated graphics processor.

> I'm running a Ryzen 5 3400G with Radeon Vega graphics:

That's a separate graphics card, isn't it?  I'm trying to use the
integrated graphics processor on my Ryzen 7900.

> $ lspci | grep -i vga
> 2a:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c8)

When I do lspci | grep -i vga, I just get:

    VGA compatible controller, Advanced Micro Devices, Inc [AMD/ATI] Raphael (rev c4),

(well, something very similar, I'm copying it by hand).  The "Raphael",
I believe, is the codename for the entire 7900 processor, not just the
graphics controller.


> $ dmesg | grep -i firmware
> [    0.091814] Spectre V2 : Enabling Speculation Barrier for firmware calls
> [    0.244487] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
> [    0.261256] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
> [    3.021472] Loading firmware: amdgpu/picasso_gpu_info.bin
> [    3.045180] Loading firmware: amdgpu/picasso_sdma.bin
> [    3.046559] Loading firmware: amdgpu/picasso_asd.bin
> [    3.047121] Loading firmware: amdgpu/picasso_ta.bin
> [    3.047408] Loading firmware: amdgpu/raven_dmcu.bin
> [    3.048027] Loading firmware: amdgpu/picasso_pfp.bin
> [    3.048163] Loading firmware: amdgpu/picasso_me.bin
> [    3.048380] Loading firmware: amdgpu/picasso_ce.bin
> [    3.048491] Loading firmware: amdgpu/picasso_rlc_am4.bin
> [    3.048624] Loading firmware: amdgpu/picasso_mec.bin
> [    3.048891] Loading firmware: amdgpu/picasso_mec2.bin
> [    3.049687] Loading firmware: amdgpu/picasso_vcn.bin
> [    3.050007] [drm] Found VCN firmware Version ENC: 1.15 DEC: 3 VEP: 0 Revision: 0
> [    3.050015] amdgpu 0000:2a:00.0: amdgpu: Will use PSP to load VCN firmware
> [    5.407436] Loading firmware: rtl_nic/rtl8168h-2.fw

As I reported in another post, dmesg | grep firmware just gives me three
files, none of them to do with graphics.

> $ zcat /proc/config.gz  | grep -i firmware
> CONFIG_PREVENT_FIRMWARE_BUILD=y
> # Firmware loader
> CONFIG_EXTRA_FIRMWARE=""
> # end of Firmware loader
> # Firmware Drivers
> CONFIG_FIRMWARE_MEMMAP=y
> # CONFIG_GOOGLE_FIRMWARE is not set
> # Tegra firmware driver
> # end of Tegra firmware driver
> # end of Firmware Drivers
> # CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
> # CONFIG_FIRMWARE_EDID is not set
> # CONFIG_TEST_FIRMWARE is not set
> CONFIG_GENTOO_PRINT_FIRMWARE_INFO=y

Yes, I get something like that on the installation system.

[ .... ]

-- 
Alan Mackenzie (Nuremberg, Germany).