Hi,
Debian "Wheezy" Testing has just switched to kernel 2.6.38. I was thus
hoping that kernel 2.6.38 fixed the issue I experienced nearly one
year ago with DRI not being enabled with kernel 2.6.32~34, thus
disabling GPU acceleration and reverting AGP mode to PCI
(http://marc.info/?l=linux-ia64&m=127713282815600&w=2). Unfortunately
not, dmesg is still stating that AGP bind memory fails, GPU
acceleration is disabled and AGP mode is forced to PCI:
<snip>
[ 28.133593] [drm] Initialized drm 1.1.0 20060810
[ 28.140417] Linux video capture interface: v2.00
[ 28.298800] GSI 38 (level, low) -> CPU 1 (0x0100) vector 60
[ 28.298839] FM801 0000:40:01.0: PCI INT A -> GSI 38 (level, low) -> IRQ 60
[ 28.719916] [drm] radeon defaulting to kernel modesetting.
[ 28.719958] [drm] radeon kernel modesetting enabled.
[ 28.720255] GSI 60 (level, low) -> CPU 0 (0x0000) vector 61
[ 28.720292] radeon 0000:80:00.0: PCI INT A -> GSI 60 (level, low) -> IRQ 61
[ 28.723258] [drm] initializing kernel modesetting (R300 0x1002:0x4E47).
[ 28.723301] [drm] register mmio base: 0xD8030000
[ 28.723333] [drm] register mmio size: 65536
[ 28.726843] radeon 0000:80:00.0: putting AGP V2 device into 2x mode
[ 28.727161] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
[ 28.727253] [drm] Generation 1 PCI interface in multifunction mode
[ 28.727288] [drm] Limiting VRAM to one aperture
[ 28.727325] radeon 0000:80:00.0: VRAM: 256M 0x00000000D0000000 - 0x00000000DF
FFFFFF (256M used)
[ 28.727383] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 28.727418] [drm] Driver supports precise vblank timestamp query.
[ 28.727480] [drm] radeon: irq initialized.
[ 28.727513] [drm] Detected VRAM RAM=256M, BAR=128M
[ 28.727546] [drm] RAM width 256bits DDR
[ 28.727657] [TTM] Zone kernel: Available graphics memory: 3110864 kiB.
[ 28.727693] [TTM] Zone dma32: Available graphics memory: 2097152 kiB.
[ 28.727729] [TTM] Initializing pool allocator.
[ 28.727796] [drm] radeon: 256M of VRAM memory ready
[ 28.727830] [drm] radeon: 512M of GTT memory ready.
[ 28.727902] [drm] radeon: 2 quad pipes, 1 Z pipes initialized.
[ 28.728835] [TTM] AGP Bind memory failed.
[ 28.728877] radeon 0000:80:00.0: object_init failed for (4096, 0x00000002)
[ 28.728914] radeon 0000:80:00.0: (-22) create WB bo failed
[ 28.728949] radeon 0000:80:00.0: Disabling GPU acceleration
[ 28.728987] [drm] radeon: cp finalized
[ 28.729031] [drm] radeon: cp finalized
[ 28.729074] [TTM] Finalizing pool allocator.
[ 28.729781] [TTM] Zone kernel: Used memory at exit: 0 kiB.
[ 28.729818] [TTM] Zone dma32: Used memory at exit: 0 kiB.
[ 28.729853] [drm] radeon: ttm finalized
[ 28.729886] [drm] Forcing AGP to PCI mode
[ 28.730743] [drm] Generation 1 PCI interface in multifunction mode
[ 28.730778] [drm] Limiting VRAM to one aperture
[ 28.730814] radeon 0000:80:00.0: VRAM: 256M 0x00000000D0000000 - 0x00000000DF
FFFFFF (256M used)
[ 28.730864] radeon 0000:80:00.0: GTT: 512M 0x00000000B0000000 - 0x00000000CFF
FFFFF
[ 28.730912] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 28.730947] [drm] Driver supports precise vblank timestamp query.
[ 28.730987] [drm] radeon: irq initialized.
[ 28.731020] [drm] Detected VRAM RAM=256M, BAR=128M
[ 28.731053] [drm] RAM width 256bits DDR
[ 28.731138] [TTM] Zone kernel: Available graphics memory: 3110864 kiB.
[ 28.731187] [TTM] Zone dma32: Available graphics memory: 2097152 kiB.
[ 28.731222] [TTM] Initializing pool allocator.
[ 28.731269] [drm] radeon: 256M of VRAM memory ready
[ 28.731302] [drm] radeon: 512M of GTT memory ready.
[ 28.731342] [drm] GART: num cpu pages 32768, num gpu pages 131072
[ 28.732113] [drm] radeon: 2 quad pipes, 1 Z pipes initialized.
[ 28.733721] radeon 0000:80:00.0: WB enabled
[ 28.734008] [drm] Loading R300 Microcode
[ 29.045898] [drm] radeon: ring at 0x00000000B0004000
[ 29.045968] [drm] ring test succeeded in 2 usecs
[ 29.046078] [drm] radeon: ib pool ready.
[ 29.046242] [drm] ib test succeeded in 0 usecs
[ 29.046544] [drm] No TV DAC info found in BIOS
[ 29.046626] [drm] Radeon Display Connectors
[ 29.046660] [drm] Connector 0:
[ 29.046691] [drm] DVI-I
[ 29.046721] [drm] HPD1
[ 29.046753] [drm] DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[ 29.046787] [drm] Encoders:
[ 29.046817] [drm] CRT1: INTERNAL_DAC1
[ 29.046850] [drm] DFP1: INTERNAL_TMDS1
[ 29.046882] [drm] Connector 1:
[ 29.046913] [drm] DVI-I
[ 29.046943] [drm] HPD2
[ 29.046974] [drm] DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[ 29.047008] [drm] Encoders:
[ 29.047039] [drm] CRT2: INTERNAL_DAC2
[ 29.047071] [drm] DFP2: INTERNAL_DVO1
[ 29.936059] [drm] fb mappable at 0xD0040000
[ 29.936100] [drm] vram apper at 0xD0000000
[ 29.936132] [drm] size 7684096
[ 29.936163] [drm] fb depth is 24
[ 29.936193] [drm] pitch is 6400
[ 30.185974] Console: switching to colour frame buffer device 200x75
[ 30.375218] fb0: radeondrmfb frame buffer device
[ 30.375220] drm: registered panic notifier
[ 30.375231] [drm] Initialized radeon 2.8.0 20080528 for 0000:80:00.0 on minor
0
<snip>
However, the same issue has been fixed in agp/amd-k7
(https://lkml.org/lkml/2010/10/15/469). I've thus simply replicated
this patch in agp/hp of my vanilla kernel 2.6.38.2 tree:
diff -uNr linux-2.6.38.2.vanilla/drivers/char/agp/hp-agp.c linux-2.6.38.2.new/dr
ivers/char/agp/hp-agp.c
--- linux-2.6.38.2.vanilla/drivers/char/agp/hp-agp.c 2011-03-27 20:37:20.0000
00000 +0200
+++ linux-2.6.38.2.new/drivers/char/agp/hp-agp.c 2011-04-12 21:20:46.0000
00000 +0200
@@ -336,7 +336,9 @@
off_t j, io_pg_start;
int io_pg_count;
- if (type != 0 || mem->type != 0) {
+ if (type != mem->type ||
+ agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
+ //if (type != 0 || mem->type != 0) {
return -EINVAL;
}
@@ -380,7 +382,9 @@
struct _hp_private *hp = &hp_private;
int i, io_pg_start, io_pg_count;
- if (type != 0 || mem->type != 0) {
+ if (type != mem->type ||
+ agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
+ //if (type != 0 || mem->type != 0) {
return -EINVAL;
}
I've then recompiled the modified kernel 2.6.38.2 tree. At reboot,
dmesg no more complains about AGP bind memory failure, disabled GPU
acceleration or AGP mode forced to PCI:
<snip>
[ 28.066974] [drm] Initialized drm 1.1.0 20060810
[ 28.678364] [drm] radeon kernel modesetting enabled.
[ 28.678655] GSI 60 (level, low) -> CPU 1 (0x0100) vector 60
[ 28.678693] radeon 0000:80:00.0: PCI INT A -> GSI 60 (level, low) -> IRQ 60
[ 28.681786] [drm] initializing kernel modesetting (R300 0x1002:0x4E47).
[ 28.681829] [drm] register mmio base: 0xD8030000
[ 28.681862] [drm] register mmio size: 65536
[ 28.684834] radeon 0000:80:00.0: putting AGP V2 device into 2x mode
[ 28.685150] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
[ 28.685242] [drm] Generation 1 PCI interface in multifunction mode
[ 28.685277] [drm] Limiting VRAM to one aperture
[ 28.685313] radeon 0000:80:00.0: VRAM: 256M 0x00000000D0000000 - 0x00000000DF
FFFFFF (256M used)
[ 28.685370] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 28.685405] [drm] Driver supports precise vblank timestamp query.
[ 28.685465] [drm] radeon: irq initialized.
[ 28.685497] [drm] Detected VRAM RAM=256M, BAR=128M
[ 28.685530] [drm] RAM width 256bits DDR
[ 28.685676] [TTM] Zone kernel: Available graphics memory: 3110888 kiB.
[ 28.685712] [TTM] Zone dma32: Available graphics memory: 2097152 kiB.
[ 28.685748] [TTM] Initializing pool allocator.
[ 28.685941] [drm] radeon: 256M of VRAM memory ready
[ 28.685976] [drm] radeon: 512M of GTT memory ready.
[ 28.686064] [drm] radeon: 2 quad pipes, 1 Z pipes initialized.
[ 28.687066] radeon 0000:80:00.0: WB disabled
[ 28.687608] [drm] Loading R300 Microcode
[ 28.973331] Linux video capture interface: v2.00
[ 29.108431] GSI 38 (level, low) -> CPU 0 (0x0000) vector 61
[ 29.108473] FM801 0000:40:01.0: PCI INT A -> GSI 38 (level, low) -> IRQ 61
[ 29.207736] [drm] radeon: ring at 0x0000000060004000
[ 29.207816] [drm] ring test succeeded in 0 usecs
[ 29.207886] [drm] radeon: ib pool ready.
[ 29.208045] [drm] ib test succeeded in 0 usecs
[ 29.208288] [drm] No TV DAC info found in BIOS
[ 29.208360] [drm] Radeon Display Connectors
[ 29.208393] [drm] Connector 0:
[ 29.208424] [drm] DVI-I
[ 29.208454] [drm] HPD1
[ 29.208485] [drm] DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[ 29.208519] [drm] Encoders:
[ 29.208550] [drm] CRT1: INTERNAL_DAC1
[ 29.208582] [drm] DFP1: INTERNAL_TMDS1
[ 29.208614] [drm] Connector 1:
[ 29.208644] [drm] DVI-I
[ 29.208674] [drm] HPD2
[ 29.208705] [drm] DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[ 29.208739] [drm] Encoders:
[ 29.208769] [drm] CRT2: INTERNAL_DAC2
[ 29.208801] [drm] DFP2: INTERNAL_DVO1
[ 30.097827] [drm] fb mappable at 0xD0040000
[ 30.097861] [drm] vram apper at 0xD0000000
[ 30.097893] [drm] size 7684096
[ 30.097923] [drm] fb depth is 24
[ 30.097953] [drm] pitch is 6400
[ 30.347409] Console: switching to colour frame buffer device 200x75
[ 30.536596] fb0: radeondrmfb frame buffer device
[ 30.537263] drm: registered panic notifier
[ 30.537861] [drm] Initialized radeon 2.8.0 20080528 for 0000:80:00.0 on minor
0
<snip>
I'm absolutely not a kernel programmer, so:
- is simply replicating the agp/amd-k7 patch in agp/hp the right way
to enable again 3D hardware acceleration on hp zx1? In this case, feel
free to reformat my proposed patch to conform to coding rules. BTW, a
similar patch should probably be written for i460 systems, but the
agp/i460 code is less clear to me and I no more have the hardware at
hands to test it;
- although not being reported anymore, is GPU acceleration really
working? Indeed, I'm still getting the exact same pathetic ~85fps in
average in glxgears as with vanilla 2.6.38.2.
Regards,
Émeric
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|