[M] Change in coreboot[master]: soc/intel/alderlake: Add romstage early graphics support

[Subrata Banik (Code Review)]

Attention is currently required from: Bora Guvendik, Hannah Williams, Cliff Huang, Tarun Tuli, Nico Huber, Michał Żygowski, Jérémy Compostella, Paul Menzel, Angel Pons, Arthur Heymans, Swift Geek (Sebastian Grzywna), Elyes Haouas.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/70303 )

Change subject: soc/intel/alderlake: Add romstage early graphics support
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Patch Set 39:

(2 comments)

File src/soc/intel/alderlake/romstage/graphics.c:

https://review.coreboot.org/c/coreboot/+/70303/comment/4a201fed_e8f4aecc 
PS33, Line 21: 	/* Attempt to unlock memory */
             : 	wrmsr(MSR_UNLOCK_MEMORY, msrval);
> Probably but outside this patch.

i don't understand what you mean by **outside this patch**?. A common code is already desirable and kindly move this function into cpulib.c to make a func call from here.

File src/soc/intel/alderlake/romstage/graphics.c:

https://review.coreboot.org/c/coreboot/+/70303/comment/230e8509_ccf3e6c1 
PS39, Line 40: 
PCI_COMMAND_MASTER aka bit 2 allow DMA operation if you don't intended to do so, you can always skip setting BME.