Messages in this thread | | | Date | Sat, 26 Apr 2014 08:01:30 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 4/4] x86/gart: Tidy messages and add bridge device info |
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* Bjorn Helgaas <bhelgaas@google.com> wrote:
> Print the AGP bridge info the same way as the rest of the kernel, e.g., > "0000:00:04.0" instead of "00:04:00". > > Also print the AGP aperture address range the same way we print resources, > and label it explicitly as a bus address range. > > No functional change. > > Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> > --- > arch/x86/kernel/aperture_64.c | 20 ++++++++++++-------- > 1 file changed, 12 insertions(+), 8 deletions(-) > > diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c > index 9fa8aa051f54..4dd76d3df056 100644 > --- a/arch/x86/kernel/aperture_64.c > +++ b/arch/x86/kernel/aperture_64.c > @@ -126,10 +126,12 @@ static u32 __init read_agp(int bus, int slot, int func, int cap, u32 *order) > u64 aper; > u32 old_order; > > - printk(KERN_INFO "AGP bridge at %02x:%02x:%02x\n", bus, slot, func); > + printk(KERN_INFO "pci 0000:%02x:%02x.%d: AGP bridge\n", bus, slot, > + func);
Please leave it on a single line - checkpatch warning nonwithstanding. pr_info() is also useful.
> apsizereg = read_pci_config_16(bus, slot, func, cap + 0x14); > if (apsizereg == 0xffffffff) { > - printk(KERN_ERR "APSIZE in AGP bridge unreadable\n"); > + printk(KERN_ERR "pci 0000:%02x:%02x.%d: APSIZE unreadable\n", > + bus, slot, func);
Here too you can also use pr_err() to shorten the line.
> return 0; > } > > @@ -153,16 +155,18 @@ static u32 __init read_agp(int bus, int slot, int func, int cap, u32 *order) > * On some sick chips, APSIZE is 0. It means it wants 4G > * so let double check that order, and lets trust AMD NB settings: > */ > - printk(KERN_INFO "Aperture from AGP @ %Lx old size %u MB\n", > - aper, 32 << old_order); > + printk(KERN_INFO "pci 0000:%02x:%02x.%d: AGP aperture [bus %Lx-%Lx] old size %u MB\n", > + bus, slot, func, aper, aper + (32 << old_order) - 1, > + 32 << old_order); > if (aper + (32ULL<<(20 + *order)) > 0x100000000ULL) { > - printk(KERN_INFO "Aperture size %u MB (APSIZE %x) is not right, using settings from NB\n", > - 32 << *order, apsizereg); > + printk(KERN_INFO "pci 0000:%02x:%02x.%d: AGP aperture size %u MB (APSIZE %x) is not right, using settings from NB\n", > + bus, slot, func, 32 << *order, apsizereg); > *order = old_order; > } > > - printk(KERN_INFO "Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n", > - aper, 32 << *order, apsizereg); > + printk(KERN_INFO "pci 0000:%02x:%02x.%d: AGP aperture [bus %Lx-%Lx] size %u MB (APSIZE %x)\n", > + bus, slot, func, aper, aper + (32 << *order) - 1, 32 << *order, > + apsizereg); > > if (!aperture_valid(aper, (32*1024*1024) << *order, 32<<20)) > return 0;
Also, you could add:
#define PREFIX "PCI/gart: "
or something like that, to define a standard prefix for these messages.
Btw., this file could be moved to arch/x86/pci/?
Otherwise:
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
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