DMA ring test failure on Radeon HD 8970M

[Joe Julian]

Gah! Disregard. I missed the attachment when reading with k9 on my phone.

Joe Julian <joe at julianfamily.org> wrote:
>
>
>Alex Deucher <alexdeucher at gmail.com> wrote:
>>On Tue, Dec 3, 2013 at 8:20 AM, Joe Julian <joe at julianfamily.org>
>>wrote:
>>>
>>>
>>> Alex Deucher <alexdeucher at gmail.com> wrote:
>>>>On Fri, Nov 29, 2013 at 7:30 PM, Joe Julian <joe at julianfamily.org>
>>>>wrote:
>>>>>
>>>>> This MSI laptop has two crossfire connected video processors in
>it,
>>>>> 00:01.0 has a HD 8650G that seems to initialize properly, and at
>>>>01:00.0
>>>>> an HD 8970M that fails the ring 3 test, "radeon: ring 3 test
>failed
>>>>(0xDFCFFBFF)".
>>>>
>>>>It looks like there's a problem with the rom for the dGPU:
>>>>
>>>>[   61.008250] ACPI Error: Field [TEMP] at 524288 exceeds Buffer
>>>>[TVGA] size 512000 (bits) (20130927/dsopcode-236)
>>>>[   61.008749] ACPI Error: Method parse/execution failed
>>>>[\_SB_.PCI0.VGA_.ATRM] (Node ffff880233ad1e30), AE_AML_BUFFER_LIMIT
>>>>(20130927/psparse-536)
>>>>[   61.009991] failed to evaluate ATRM got AE_AML_BUFFER_LIMIT
>>>>[   61.010204] ATOM BIOS: MSI
>>>>[   61.010270] [drm] GPU not posted. posting now...
>>>>[   61.018737] radeon 0000:01:00.0: limiting VRAM
>>>>[   61.018765] radeon 0000:01:00.0: VRAM: 1047552M
>0x0000000000000000
>>>>- 0x000000FFBFFFFFFF (1047552M used)
>>>>[   61.018814] radeon 0000:01:00.0: GTT: 1024M 0x000000FFC0000000 -
>>>>0x000000FFFFFFFFFF
>>>>[   61.018853] [drm] Detected VRAM RAM=1047552M, BAR=256M
>>>>
>>>>1047552M of vram is obviously wrong.  How much vram is supposed to
>be
>>>>on the card?
>>>
>>> According to Windows, 2GB:
>>> Name    AMD Radeon(TM) HD8970M
>>> PNP Device ID   
>>PCI\VEN_1002&DEV_6801&SUBSYS_10F11462&REV_00\4&99EBB28&0&0018
>>> Adapter Type    AMD Radeon Graphics Processor (0x6801), Advanced
>>Micro Devices, Inc. compatible
>>> Adapter Description    AMD Radeon(TM) HD8970M
>>> Adapter RAM    (2,147,483,648) bytes
>>> Installed Drivers   
>>aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
>>> Driver Version    13.200.11.0
>>> INF File    oem17.inf (ati2mtag_R576B section)
>>> Color Planes    Not Available
>>> Color Table Entries    4294967296
>>> Resolution    1920 x 1080 x 60 hertz
>>> Bits/Pixel    32
>>> Memory Address    0xD0000000-0xDFFFFFFF
>>> Memory Address    0xFEAC0000-0xFEAFFFFF
>>> I/O Port    0x0000EF00-0x0000EFFF
>>> IRQ Channel    IRQ 4294967283
>>>>
>>>>Can you send me the output from this patch?
>>>>
>>>>diff --git a/drivers/gpu/drm/radeon/si.c
>>b/drivers/gpu/drm/radeon/si.c
>>>>index 6a64cca..84a7e26 100644
>>>>--- a/drivers/gpu/drm/radeon/si.c
>>>>+++ b/drivers/gpu/drm/radeon/si.c
>>>>@@ -3884,6 +3884,7 @@ static int si_mc_init(struct radeon_device
>>*rdev)
>>>>        /* size in MB on si */
>>>>    rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL *
>>1024ULL;
>>>>  rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL *
>>1024ULL;
>>>>+       DRM_INFO("CONFIG_MEMSIZE: 0x%08x\n",
>RREG32(CONFIG_MEMSIZE));
>>>>        rdev->mc.visible_vram_size = rdev->mc.aper_size;
>>>>        si_vram_gtt_location(rdev, &rdev->mc);
>>>>        radeon_update_bandwidth_info(rdev);
>>>>
>>>>
>>> CONFIG_MEMSIZE=0X03800800
>>
>>Does this patch fix the issues?
>>
>>Alex
>>
>>
>>>>>
>>>>> Throwing in some writel and readl tests before even trying the dma
>>>>test,
>>>>> I see that the memory isn't being changed with writel in the first
>>>>> place.
>>>>>
>>>>> ----
>>>>>         tmp = 0xDEADBEEF;
>>>>>         writel(tmp, ptr);
>>>>>         tmp = readl(ptr);
>>>>>         if (tmp != 0xDEADBEEF)
>>>>>                 DRM_ERROR("radeon: ring %d memory write failed
>(0x%
>>>>> 08X)\n", ring->idx, tmp);
>>>>> ----
>>>>>
>>>>> radeon: ring 3 memory write failed (0xDFCFFBFF)
>>>>>
>>>>> Looks to me like we're trying to write to a rom address, but I'm a
>>>>> complete novice at this so I could be completely off.
>>>>>
>>>>>
>>>>> I'm using kernel 3.13.0-0.rc1.git3
>>>>>
>>>>> What else could I look at?
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> xorg-driver-ati mailing list
>>>>> xorg-driver-ati at lists.x.org
>>>>> http://lists.x.org/mailman/listinfo/xorg-driver-ati
>>>>>
>>>
>
>No. Other than the additional dmesg line there are no other changes.
>
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-- 
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