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Message-ID: <507ADD14.7050503@cfl.rr.com>
Date: Sun, 14 Oct 2012 11:41:08 -0400
From: Mark Hounschell <dmarkh@....rr.com>
To: Daniel Vetter <daniel@...ll.ch>
CC: markh@...pro.net,
Bruno Prémont <bonbons@...ux-vserver.org>,
Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
linux-kernel@...r.kernel.org
Subject: Re: [Intel-gfx] Intel graphics drm issue?
On 10/14/2012 10:40 AM, Daniel Vetter wrote:
> On Sun, Oct 14, 2012 at 4:19 PM, Mark Hounschell <dmarkh@....rr.com> wrote:
>> OK. Applied to 3.6.2. The dmesg is attached. The message did not show up.
>> I'll be here most of the day.
>
> Ok, that at least confirms my suspicion (and yeah, I've mis-remembered
> when I've merged the agp removal for gen6+, it's already all done in
> 3.6). But I have no idea how that could fail this way. New little
> debug patch:
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index a24ffbe..7ec35c5 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -848,6 +848,11 @@ i915_pci_probe(struct pci_dev *pdev, const struct
> pci_device_id *ent)
> return -ENODEV;
> }
>
> + printk("force-disabling agp on gen %i, is_ivybridge %i\n",
> + intel_info->gen, intel_info->is_ivybridge);
> +
> + driver.driver_features &=
> + ~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
> return drm_get_pci_dev(pdev, ent, &driver);
> }
>
> Yours, Daniel
>
There is something amiss. Here is my i915_pci_probe routine. I Added a
couple more printks. NONE of these show up in dmesg. Not even the "Entered"
printk. ????
static int __devinit
i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct intel_device_info *intel_info =
(struct intel_device_info *) ent->driver_data;
printk("i915_pci_probe: Entered\n");
/* Only bind to function 0 of the device. Early generations
* used function 1 as a placeholder for multi-head. This causes
* us confusion instead, especially on the systems where both
* functions have the same PCI-ID!
*/
if (PCI_FUNC(pdev->devfn)) {
printk("i915_pci_probe: returning -ENODEV\n");
return -ENODEV;
}
/* We've managed to ship a kms-enabled ddx that shipped with an XvMC
* implementation for gen3 (and only gen3) that used legacy drm maps
* (gasp!) to share buffers between X and the client. Hence we need to
* keep around the fake agp stuff for gen3, even when kms is
enabled. */
if (intel_info->gen != 3) {
driver.driver_features &=
~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
printk("dropping agp requirement\n");
} else if (!intel_agp_enabled) {
DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
return -ENODEV;
}
printk("force-disabling agp on gen %i, is_ivybridge %i\n",
intel_info->gen, intel_info->is_ivybridge);
driver.driver_features &=
~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
return drm_get_pci_dev(pdev, ent, &driver);
}
I see the i915 module loaded:
# lsmod
Module Size Used by
nfs 126282 0
fscache 42769 1 nfs
lockd 55498 1 nfs
sunrpc 171138 3 nfs,lockd
coretemp 5417 0
snd_virtuoso 28165 1
snd_oxygen_lib 28848 1 snd_virtuoso
snd_pcm 78139 1 snd_oxygen_lib
snd_page_alloc 6840 1 snd_pcm
snd_mpu401_uart 5637 1 snd_oxygen_lib
snd_rawmidi 18374 1 snd_mpu401_uart
snd_seq 46978 0
kvm 241365 0
snd_timer 17410 2 snd_pcm,snd_seq
snd_seq_device 5569 2 snd_rawmidi,snd_seq
crc32c_intel 1481 0
aesni_intel 8188 0
ablk_helper 2217 1 aesni_intel
cryptd 8236 1 ablk_helper
aes_i586 7256 1 aesni_intel
pcspkr 1458 0
serio_raw 4359 0
snd 58892 10
snd_virtuoso,snd_oxygen_lib,snd_pcm,snd_mpu401_uart,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
joydev 7748 0
sg 24563 0
i2c_i801 11132 0
sr_mod 12084 0
cdrom 32115 1 sr_mod
soundcore 5895 1 snd
e1000e 199196 0
shpchp 23210 0
pci_hotplug 23417 1 shpchp
lpc_ich 9465 0
edd 7067 0
microcode 11485 0
autofs4 26390 2
ext4 282110 2
jbd2 57523 1 ext4
crc16 1327 1 ext4
i915 420514 0
drm_kms_helper 28021 1 i915
hid_generic 761 0
drm 208515 2 i915,drm_kms_helper
xhci_hcd 117932 0
i2c_algo_bit 4973 1 i915
fan 2287 0
thermal 8404 0
button 4550 1 i915
video 11908 1 i915
scsi_dh_hp_sw 3480 0
scsi_dh_alua 6493 0
scsi_dh_rdac 6764 0
scsi_dh_emc 6481 0
scsi_dh 5432 4
scsi_dh_hp_sw,scsi_dh_alua,scsi_dh_rdac,scsi_dh_emc
# lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor DRAM Controller [8086:0150] (rev 09)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor PCI Express Root Port [8086:0151] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200
v2/3rd Gen Core processor Graphics Controller [8086:0162] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C210
Series Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:19.0 Ethernet controller [0200]: Intel Corporation 82579V Gigabit
Network Connection [8086:1503] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.7 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 8 [8086:1e1e] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation H77 Express Chipset LPC
Controller [8086:1e4a] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series/C210 Series
Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e02] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C210 Series Chipset Family
SMBus Controller [8086:1e22] (rev 04)
01:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX8112 x1 Lane PCI
Express-to-PCI Bridge [10b5:8112] (rev aa)
02:04.0 Multimedia audio controller [0401]: C-Media Electronics Inc CMI8788
[Oxygen HD Audio] [13f6:8788]
dmesg ad config file attached:
??????
Mark
View attachment "kernel_config" of type "text/plain" (125263 bytes)
View attachment "dmesg-dvi2hdmi-3.6.2-2" of type "text/plain" (49286 bytes)
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