MTL can hang because of a HW bug while parallel reading/writing
from/to LMEM/GTTMMADR BAR so try to reduce GGTT update
related pci transactions with blitter command as recommended
for Wa_13010847436 and Wa_14019519902.
Signed-off-by: Nirmoy Das
Reviewed-by: Oak Zeng
Reviewed-by: Andi Shyti
---
Hi Nirmoy,
On Mon, Sep 18, 2023 at 07:02:57PM +0200, Nirmoy Das wrote:
> MTL can hang because of a HW bug while parallel reading/writing
> from/to LMEM/GTTMMADR BAR so try to reduce GGTT update
> related pci transactions with blitter command as recommended
> for Wa_13010847436 and Wa_14019519902.
Hi Nirmoy,
https://gfxspecs.intel.com/Predator/Home/Index/52885?dstFilter=MTL=Filter
I can't find Wa_13010847436 and Wa_14019519902 in the above link, where
can I check these WA?
Br,
G.G.
On 9/18/23 8:02 PM, Nirmoy Das wrote:
MTL can hang because of a HW bug while parallel reading/writing
MTL can hang because of a HW bug while parallel reading/writing
from/to LMEM/GTTMMADR BAR so try to reduce GGTT update
related pci transactions with blitter command as recommended
for Wa_13010847436 and Wa_14019519902.
Signed-off-by: Nirmoy Das
Reviewed-by: Oak Zeng
---
MTL can hang because of a HW bug while parallel reading/writing
from/to LMEM/GTTMMADR BAR so try to reduce GGTT update
related pci transactions with blitter command as recommended
for Wa_13010847436 and Wa_14019519902.
Signed-off-by: Nirmoy Das
Reviewed-by: Oak Zeng
---
Reviewed-by: Oak Zeng
Thanks,
Oak
> -Original Message-
> From: Das, Nirmoy
> Sent: Wednesday, September 13, 2023 9:10 AM
> To: intel-gfx@lists.freedesktop.org
> Cc: Zeng, Oak ; chris.p.wil...@linux.intel.com;
> Piorkowski,
> Piotr ; Shyti, Andi ; Mun,
> Gwan-gyeong ; Roper, Matthew D
MTL can hang because of a HW bug while parallel reading/writing
from/to LMEM/GTTMMADR BAR so try to reduce GGTT update
related pci transactions with blitter command as recommended
for Wa_13010847436 and Wa_14019519902.
Signed-off-by: Nirmoy Das
---
drivers/gpu/drm/i915/gt/intel_gtt.c | 3 ++-
1
