[Intel-gfx] about 945GM tiling error

[Wang Xu]

Hi,

I tried latest driver, libdrm, and kernel on my 945GM system, and the
tiling seems still got tiling problems.

 | (**) intel(0): Tiling enabled
 | (==) intel(0): VideoRam: 262144 KB
 | (II) intel(0): Attempting memory allocation with tiled buffers.
 | (EE) intel(0): Failed to set tiling on front buffer: rejected by kernel
 | (II) intel(0): Tiled allocation successful.
 [...]
 | (II) intel(0): Allocate new frame buffer 1024x768 stride 1024
 | (EE) intel(0): Failed to set tiling on front buffer: rejected by kernel
 | (II) intel(0): New front buffer at 0x800000

and if I used 2.6.1 driver rather than the current master, only the
first error would be got. And, the glxgears fps of 2.6.1 is about 800,
while the current master is about 650.

And I got this panic messages in dmesg:

[  337.334185] ------------[ cut here ]------------
[  337.334190] WARNING: at drivers/gpu/drm/i915/i915_gem.c:3015 i915_gem_idle+0x
31a/0x340()
[  337.334193] Hardware name: 1707LY2
[  337.334194] Modules linked in: binfmt_misc ipv6 cpufreq_stats cpufreq_userspa
ce cpufreq_conservative cpufreq_powersave hidp hid rfcomm l2cap bluetooth fuse c
pufreq_ondemand acpi_cpufreq joydev freq_table hdaps input_polldev coretemp uinp
ut loop arc4 ecb pcmcia iwl3945 mac80211 lib80211 yenta_socket rsrc_nonstatic pc
mcia_core psmouse serio_raw battery cfg80211 ac video rtc_cmos rtc_core rtc_lib
thinkpad_acpi rfkill button backlight nvram ext3 jbd mbcache sdhci_pci sdhci mmc
_core led_class e1000e thermal processor fan
[  337.334245] Pid: 3884, comm: X Not tainted 2.6.29-rc3-gnawux-inteldrm-01 #1
[  337.334247] Call Trace:
[  337.334267]  [<c03adee7>] ? printk+0x18/0x21
[  337.334273]  [<c0129153>] warn_slowpath+0x73/0xd0
[  337.334280]  [<c014045a>] ? enqueue_hrtimer+0x6a/0x90
[  337.334285]  [<c0140c5f>] ? hrtimer_start_range_ns+0xcf/0x260
[  337.334291]  [<c014021a>] ? hrtimer_forward+0x12a/0x180
[  337.334297]  [<c0132f15>] ? lock_timer_base+0x25/0x50
[  337.334304]  [<c027fc79>] ? i915_gem_retire_requests+0xf9/0x150
[  337.334310]  [<c027fc79>] ? i915_gem_retire_requests+0xf9/0x150
[  337.334316]  [<c02810ba>] i915_gem_idle+0x31a/0x340
[  337.334321]  [<c0281157>] i915_gem_leavevt_ioctl+0x27/0x40
[  337.334328]  [<c026b4a8>] drm_ioctl+0xe8/0x2f0
[  337.334334]  [<c01146b3>] ? lapic_next_event+0x13/0x20
[  337.334341]  [<c0147448>] ? clockevents_program_event+0x98/0x160
[  337.334347]  [<c0281130>] ? i915_gem_leavevt_ioctl+0x0/0x40
[  337.334353]  [<c0192590>] vfs_ioctl+0x80/0x90
[  337.334358]  [<c0192722>] do_vfs_ioctl+0x72/0x5b0
[  337.334364]  [<c012e4bf>] ? __do_softirq+0x10f/0x130
[  337.334370]  [<c0192c99>] sys_ioctl+0x39/0x70
[  337.334376]  [<c0103431>] sysenter_do_call+0x12/0x25
[  337.334380] ---[ end trace fc9fad3de0a626ea ]---

some platform info:
chipset: 945GM (Thinkpad X60)
kernel: linus linux-2.6.git  master with  drm-intel-next merged
xserver: 1.5.99.901
mesa: 7.3
libdrm: git master
xf86-video-intel: git master

attachmens are my xorg.conf and Xorg.0.log


--
Wang Xu
Gilda Radner  - "Adopted kids are such a pain - you have to teach them
how to look like you."
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