From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 110781] Radeon: heavy r300 performance drop regression between
11.x and 19.x
Date: Tue, 04 Jun 2019 07:56:23 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=3D110781
--- Comment #25 from Richard Thier ---
In the assert problem this is the domain and flag meanings in case of only =
my
hack is in place:
domain(6) =3D=3D RADEON_DOMAIN_GTT(2) | RADEON_DOMAIN_VRAM(4)
flags(1) =3D=3D RADEON_FLAG_GTT_WC (1 << 0)
So I get -1 even if I "outcomment" this check in radeon_get_heap_index(..):
/* Resources with interprocess sharing don't use any winsys allocators.=
=20
if (!(flags & RADEON_FLAG_NO_INTERPROCESS_SHARING))
return -1;*/
There is a switch statement in this function where they switch based on the
domain parameter:
switch (domain) {
case RADEON_DOMAIN_VRAM:
...
case RADEON_DOMAIN_GTT:
...
default:
break;
}
return -1;
I suspect we return -1 here because we go into the "default" case. I think =
that
is right because domain is: 6 =3D=3D 2 | 4 =3D=3D GTT+VRAM at the same time.
Maybe once it was meaningful to have both GTT (is that GART?) and VRAM at t=
he
same time being or-ed together but not anymore?
I will try to add a hack to make the domain always just VRAM to see what
happens... I know that is bad, but just for the analysis.
--=20
You are receiving this mail because:
You are the assignee for the bug.=
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Date: Tue, 4 Jun 2019 07:56:23 +0000
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Auto-Submitted: auto-generated
Comme=
nt # 25
on bug 11078=
1
from =
Richard Thier
In the assert problem this is the domain and flag meanings in =
case of only my
hack is in place:
domain(6) =3D=3D RADEON_DOMAIN_GTT(2) | RADEON_DOMAIN_VRAM(4)
flags(1) =3D=3D RADEON_FLAG_GTT_WC (1 << 0)
So I get -1 even if I "outcomment" this check in radeon_get_heap_=
index(..):
/* Resources with interprocess sharing don't use any winsys allocators.=
=20
if (!(flags & RADEON_FLAG_NO_INTERPROCESS_SHARING))
return -1;*/
There is a switch statement in this function where they switch based on the
domain parameter:
switch (domain) {
case RADEON_DOMAIN_VRAM:
...
case RADEON_DOMAIN_GTT:
...
default:
break;
}
return -1;
I suspect we return -1 here because we go into the "default" case=
. I think that
is right because domain is: 6 =3D=3D 2 | 4 =3D=3D GTT+VRAM at the same time.
Maybe once it was meaningful to have both GTT (is that GART?) and VRAM at t=
he
same time being or-ed together but not anymore?
I will try to add a hack to make the domain always just VRAM to see what
happens... I know that is bad, but just for the analysis.
You are receiving this mail because:
- You are the assignee for the bug.
=
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