All of the video ROMs I have are 48KB - 64KB in size. But, the copy code is only triggered by the driver for older PCI cards with minimal decoding. I am unaware of any video cards with this problem so they won't make the copy. The only cards I seem to recall having this problem are some older QLogic disk controllers. We should fix this alloc as best as we can but most normal users will never see it.
Another solution I'll add is a pci_disable_rom() call that will make the ROM disappear from sysfs. This would give the minimally decoded PCI board the option of avoiding the copy and just disabling it. The copy only needs to happen if user space apps are going to use the ROM contents after the device driver has loaded. To get the true size of your ROM look at the front of it for 55 AA the third byte is then len / 512. Fourth byte is the JMP for the reset vector. Note that the code does not copy SHADOW ROMs. These ROMs have already been copied by the system BIOS to C0000. The code uses the existing copy. --- Kronos <[EMAIL PROTECTED]> wrote: > > This memory is not performance critical and can be swapped, is > there a > > better way to allocate it? > > Problem is that kmalloc may be unable to find many contiguous memory > pages. > > You can check and see if the ROM is really big and use vmalloc, if > not > then you use kmalloc (if I remember correctly my radeon has a 4KB ROM > - > vmalloc would be overkill). > > Luca > -- > Home: http://kronoz.cjb.net > Ci sono due cose che l'uomo non puo` nascondere: > essere ubriaco ed essere innamorato. > ===== Jon Smirl [EMAIL PROTECTED] __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail ------------------------------------------------------- This SF.Net email is sponsored by OSTG. Have you noticed the changes on Linux.com, ITManagersJournal and NewsForge in the past few weeks? Now, one more big change to announce. We are now OSTG- Open Source Technology Group. Come see the changes on the new OSTG site. www.ostg.com -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
