Add support for RX 7900 XT

[deadmeu]

Running version 1.4 seems to work just fine with the Sapphire RX 7900 XT.

This might help:

> cat /usr/share/hwdata/pci.ids | grep "RX 7900"
744c  Navi 31 [Radeon RX 7900 XT/7900 XTX]
	1da2 e471  NITRO+ RX 7900 XTX Vapor-X

Happy to provide more info or even a PR if someone could let me know the steps required.

[clbr]

Sorry? Did you mean this as a reply somewhere else?

[deadmeu]

Sorry? Did you mean this as a reply somewhere else?

It seems like my card isn't officially supported?
Unknown Radeon card. <= R500 won't work, new cards might.
I'm just raising a ticket to make it officially supported.

[clbr]

You wrote above it works just fine?

[deadmeu]

I assume it's not preferred for "Unknown Radeon card" and "... running on UNKNOWN_CHIP ..." to be presented to the user?

[clbr]

The pci ids for new cards will eventually be added. It needs a new source as they're no longer updated in the kernel where they were gotten from til now.

[Umio-Yasuno]

The AMDGPU chip can be detected from chip_rev and family_id in amdgpu_gpu_info. The pci id is not required.

• https://gitlab.freedesktop.org/mesa/mesa/blob/main/src/amd/addrlib/src/amdgpu_asic_addr.h
• https://gitlab.freedesktop.org/mesa/mesa/blob/main/src/amd/common/amd_family.c

[Umio-Yasuno]

Draft: Umio-Yasuno@88e2bb5

Detection of GFX1036/Raphael, GFX1037/Mendocino, GFX1100/Navi31, GFX1101/Navi32, GFX1102/Navi33, GFX1103_R1/Phoenix, GFX1103_R2/Phoenix .

[deadmeu]

Draft: Umio-Yasuno@88e2bb5

Detection of GFX1036/Raphael, GFX1037/Mendocino, GFX1100/Navi31, GFX1101/Navi31, GFX1102/Navi33, GFX1103_R1/Phoenix, GFX1103_R2/Phoenix .

Nice! This is picking my card up as running on "GFX1101".

[Umio-Yasuno]

Draft: Umio-Yasuno@88e2bb5
Detection of GFX1036/Raphael, GFX1037/Mendocino, GFX1100/Navi31, GFX1101/Navi31, GFX1102/Navi33, GFX1103_R1/Phoenix, GFX1103_R2/Phoenix .

Nice! This is picking my card up as running on "GFX1101".

Oops, GFX1100 was missing in family_str.c.

Fixed: Umio-Yasuno@accd6ff

[deadmeu]

Oops, GFX1100 was missing in family_str.c.

Fixed: Umio-Yasuno@accd6ff

I'm not sure what the correct code should be, but it is reporting GFX1100 now 🙂. The version seems to be missing: https://i.imgur.com/sL10Zx2.png

[Umio-Yasuno]

AFAIK, AMD Radeon RX 7900 XT is Navi31 based.

	GFX1100, // Navi31
	GFX1101, // Navi32
	GFX1102, // Navi33
	GFX1103_R1,  // Phoenix
	GFX1103_R2, // Phoenix
	GFX1036, // Raphael
	GFX1037, // Mendocino

[Umio-Yasuno]

I am currently developing software in the Rust language that will be the successor to radeontop.
https://github.com/Umio-Yasuno/amdgpu_top

@clbr is busy and radeontop has issues such as reporting deleted values on Vega/GFX9/soc15 and Navi/GFX10.

#93