[Ubuntu-x-swat] [Bug 1098334]
Created attachment 93235 sna/gen4,5: Fix setting pipe control cache flush bits Only the one in gen4_emit_pipe_flush is in an enabled part of the code anyway. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
Running with all workarounds disabled, this change doesn't fix anything nor
seem to make any difference, but anyway:
Shouldn't the cache flush bits be in dword 0 for gen4 GEN4_PIPE_CONTROL? Maybe
gen5 also?
diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
index 1d164b6..894418b 100644
--- a/src/sna/gen4_render.c
+++ b/src/sna/gen4_render.c
@@ -575,8 +575,10 @@ inline static void
gen4_emit_pipe_flush(struct sna *sna)
{
#if 1
- OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
- OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH);
+ OUT_BATCH(GEN4_PIPE_CONTROL |
+ GEN4_PIPE_CONTROL_WC_FLUSH |
+ (4 - 2));
+ OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
#else
@@ -601,8 +603,10 @@ inline static void
gen4_emit_pipe_invalidate(struct sna *sna)
{
#if 0
- OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
- OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH | GEN4_PIPE_CONTROL_TC_FLUSH);
+ OUT_BATCH(GEN4_PIPE_CONTROL |
+ GEN4_PIPE_CONTROL_WC_FLUSH | GEN4_PIPE_CONTROL_TC_FLUSH |
+ (4 - 2));
+ OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
#else
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Title:
[gen4 sna] Font corruption
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[Ubuntu-x-swat] [Bug 1098334]
Created attachment 93326 icon corruption Latest git (2.99.909-7-g1cbc59a) has icon corruption, but all text is fine. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
Created attachment 92770 not quite random corruption example With the workarounds disabled, can anything be deduced from the text or pixmap corruption not seeming to be completely random? Italic text seems to be particularly badly hit, and it seems to vary with the font and size. But in the attached screenshot, some of the lines of text never showed any corruption, while others usually showed some corruption, the corruption changing on switching focus to another window and back. Size 10 italic Cantarell seemed particularly badly hit, with even lines of just repeated c or d characters showing corruption (if longer than 18 letters), but other fonts don't usually show any corruption on a line of text filled with a single repeating character. For pixmap corruption, the printer icon in the gedit toolbar seems to get turned into grey vertical bars more often than any other icons get corrupted. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
(In reply to comment #168) > Created attachment 92287 [details] [review] > Always force a GPU flush between operations > > Can you please try this patch against git and see if that improves things - > except for performance? Current git (2.99.907-23-gf23ab96) without any other changes: still a few corrupt characters in gedit with italic font Current git + patch in attachment 92287: still the same - has a few corrupt characters in gedit with italic font, displaying files full of text -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
I am wondering if some extra flushes are needed in regard to what the
G45 PRM PDFs say about the BLT (section 8.6, vol 1b p. 170)
git + this gives only a moderate amount of corrupt rendering:
diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
index e239c21..f150e5b 100644
--- a/src/sna/gen4_render.c
+++ b/src/sna/gen4_render.c
@@ -63,7 +63,7 @@
#define NO_FILL_BOXES 0
#define NO_VIDEO 0
-#define MAX_FLUSH_VERTICES 1 /* was 6,
https://bugs.freedesktop.org/show_bug.cgi?id=55500 */
+#define MAX_FLUSH_VERTICES 12 /* was 6,
https://bugs.freedesktop.org/show_bug.cgi?id=55500 */
#define GEN4_GRF_BLOCKS(nreg)((nreg + 15) / 16 - 1)
@@ -571,26 +571,28 @@ static void gen4_emit_vertex_buffer(struct sna *sna,
inline static void
gen4_emit_pipe_flush(struct sna *sna)
{
-#if 1
+#if 0
OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
- OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH);
+ OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH | GEN4_PIPE_CONTROL_TC_FLUSH);
OUT_BATCH(0);
OUT_BATCH(0);
#else
OUT_BATCH(MI_FLUSH | MI_INHIBIT_RENDER_CACHE_FLUSH);
+ /* OUT_BATCH(MI_NOOP); */
#endif
}
inline static void
gen4_emit_pipe_break(struct sna *sna)
{
-#if 1
+#if 0
OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
- OUT_BATCH(0);
+ OUT_BATCH(GEN4_PIPE_CONTROL_TC_FLUSH);
OUT_BATCH(0);
OUT_BATCH(0);
#else
OUT_BATCH(MI_FLUSH | MI_INHIBIT_RENDER_CACHE_FLUSH);
+ /* OUT_BATCH(MI_NOOP); */
#endif
}
@@ -599,11 +601,12 @@ gen4_emit_pipe_invalidate(struct sna *sna)
{
#if 0
OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
- OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH | GEN4_PIPE_CONTROL_TC_FLUSH);
+ OUT_BATCH(GEN4_PIPE_CONTROL_WC_FLUSH | GEN4_PIPE_CONTROL_TC_FLUSH |
GEN4_PIPE_CONTROL_IS_FLUSH);
OUT_BATCH(0);
OUT_BATCH(0);
#else
- OUT_BATCH(MI_FLUSH);
+ OUT_BATCH(MI_FLUSH); /* | MI_STATE_INSTRUCTION_CACHE_FLUSH */
+ /* OUT_BATCH(MI_NOOP); */
#endif
}
@@ -781,7 +784,10 @@ gen4_emit_urb(struct sna *sna)
urb_cl_end = urb_gs_end + URB_CL_ENTRIES * URB_CL_ENTRY_SIZE;
urb_sf_end = urb_cl_end + URB_SF_ENTRIES * URB_SF_ENTRY_SIZE;
urb_cs_end = urb_sf_end + URB_CS_ENTRIES * URB_CS_ENTRY_SIZE;
- assert(urb_cs_end <= 256);
+ if (sna->kgem.gen >= 045)
+ assert(urb_cs_end <= 384);
+ else
+ assert(urb_cs_end <= 256);
while ((sna->kgem.nbatch & 15) > 12)
OUT_BATCH(MI_NOOP);
@@ -1623,6 +1629,7 @@ gen4_render_composite_done(struct sna *sna,
kgem_bo_destroy(&sna->kgem, op->src.bo);
sna_render_composite_redirect_done(sna, op);
+ gen4_emit_pipe_invalidate(sna);
}
static bool
@@ -2154,6 +2161,7 @@ gen4_render_composite_spans_done(struct sna *sna,
kgem_bo_destroy(&sna->kgem, op->base.src.bo);
sna_render_composite_redirect_done(sna, &op->base);
+ gen4_emit_pipe_invalidate(sna);
}
static bool
@@ -2500,6 +2508,7 @@ fallback_blt:
gen4_vertex_flush(sna);
sna_render_composite_redirect_done(sna, &tmp);
kgem_bo_destroy(&sna->kgem, tmp.src.bo);
+ gen4_emit_pipe_invalidate(sna);
return true;
fallback_tiled_dst:
@@ -2535,6 +2544,7 @@ gen4_render_copy_done(struct sna *sna, const struct
sna_copy_op *op)
{
if (sna->render.vertex_offset)
gen4_vertex_flush(sna);
+ gen4_emit_pipe_invalidate(sna);
}
static bool
@@ -2736,6 +2746,7 @@ gen4_render_fill_boxes(struct sna *sna,
gen4_vertex_flush(sna);
kgem_bo_destroy(&sna->kgem, tmp.src.bo);
+ gen4_emit_pipe_invalidate(sna);
return true;
}
@@ -2776,6 +2787,7 @@ gen4_render_fill_op_done(struct sna *sna, const struct
sna_fill_op *op)
if (sna->render.vertex_offset)
gen4_vertex_flush(sna);
kgem_bo_destroy(&sna->kgem, op->base.src.bo);
+ gen4_emit_pipe_invalidate(sna);
}
static bool
I've also tried setting "Render Cache Operational Flush Enable" of the
Cache_Mode_0 register with intel_reg_write, this made no difference.
I was also wondering if firefox is particularly bad because it uses it's
own old version of cairo which seems to be version 1.9.8 plus lots of
patches.
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Title:
[gen4 sna] Font corruption
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[Ubuntu-x-swat] [Bug 1098334]
I have been experimenting with various numbers in the code in comment #157 without really discovering anything useful. I think any change that slows things down decreases the chances of observing any corruption, but might not necessarily fix the problem completely. With current git + MAX_FLUSH_VERTICES=6, gnome-terminal suffers from the text corruption, firefox is bad, but KDE4 konqueror and MiniBrowser from webkitgtk3 seem to display the same webpages perfectly fine. The other thing I have noticed is that under this setup, I can make gedit suffer from the text corruption if I set an italic (and not monospaced) font - in that case, almost every line of the text file displayed will show some corruption immediately after changing to the italic font. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098489]
Created attachment 91389 intel_error_decode output the decoded error that occurred while running gtkperf, 2.99.907 with the change in comment #148 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098489 Title: [gen4] Corruption in Chrome omni bar results using Intel SNA To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098489/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098489]
(In reply to comment #148)
> Worth trying just:
>
> diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
> index 637137e..dc80de3 100644
> --- a/src/sna/gen4_render.c
> +++ b/src/sna/gen4_render.c
> @@ -660,9 +660,11 @@ inline static int gen4_get_rectangles(struct sna *sna,
> if (rem <= 0) {
> if (sna->render.vertex_offset) {
> gen4_vertex_flush(sna);
> - if (gen4_magic_ca_pass(sna, op))
> + if (gen4_magic_ca_pass(sna, op)) {
> + OUT_BATCH(MI_FLUSH |
> MI_INHIBIT_RENDER_CACHE_FLUSH);
> gen4_emit_pipelined_pointers(sna,
> op, op->op,
>
> op->u.gen4.wm_kernel);
> + }
> }
> OUT_BATCH(MI_FLUSH | MI_INHIBIT_RENDER_CACHE_FLUSH);
> rem = MAX_FLUSH_VERTICES;
>
> if you are happy that it reproduces reliably.
This change did not fully solve the problem. One text file in gedit
displayed as blank initially for a bit, although things then seemed
fine. But the freeze with "[drm] stuck on render ring" happened during a
second run of gtkperf - while the "GtkDrawingArea - Text" test was
running.
But I didn't spot any corrupted characters while running 2.99.907 with
MAX_FLUSH_VERTICES set back to 6 - although I hadn't been running that
for very long, and I only see a single garbled char occasionally, and I
think they only appear in Firefox.
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Title:
[gen4] Corruption in Chrome omni bar results using Intel SNA
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[Ubuntu-x-swat] [Bug 1098489]
(In reply to comment #149) > > But I didn't spot any corrupted characters while running 2.99.907 with > MAX_FLUSH_VERTICES set back to 6 And now I have spotted the single character corruption with 2.99.907 + MAX_FLUSH_VERTICES set to 6. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098489 Title: [gen4] Corruption in Chrome omni bar results using Intel SNA To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098489/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098489]
Created attachment 91388 intel_error_decode output I saved the output from intel_error_decode but I didn't save the raw error data. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098489 Title: [gen4] Corruption in Chrome omni bar results using Intel SNA To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098489/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098489]
Created attachment 91383 gedit in openbox with 2.99.907 GM45 SNA I am finding that GM45 SNA seems unusable with 2.99.907 - git bisect pointed to the bad commit as: 9289e2c56b7f0cc78c5123691ad96611f0e04bed is the first bad commit commit 9289e2c56b7f0cc78c5123691ad96611f0e04bed Author: Chris Wilson Date: Mon Dec 16 11:39:20 2013 + sna/gen4: Sacrifice performance to workaround render corruption The problems are lines of text keep disappearing (and reappearing) in gedit, and the occasionally the screen becomes unresponsive for a short time and these messages appear in dmesg: [ 1702.349954] [drm] stuck on render ring [ 1702.349966] [drm] capturing error event; look for more information in /sys/class/drm/card0/error [ 1702.354334] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x32a1000 ctx 0) at 0x32a1110 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098489 Title: [gen4] Corruption in Chrome omni bar results using Intel SNA To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098489/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
(In reply to comment #149) > > But I didn't spot any corrupted characters while running 2.99.907 with > MAX_FLUSH_VERTICES set back to 6 And now I have spotted the single character corruption with 2.99.907 + MAX_FLUSH_VERTICES set to 6. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
Created attachment 91388 intel_error_decode output I saved the output from intel_error_decode but I didn't save the raw error data. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
(In reply to comment #148)
> Worth trying just:
>
> diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
> index 637137e..dc80de3 100644
> --- a/src/sna/gen4_render.c
> +++ b/src/sna/gen4_render.c
> @@ -660,9 +660,11 @@ inline static int gen4_get_rectangles(struct sna *sna,
> if (rem <= 0) {
> if (sna->render.vertex_offset) {
> gen4_vertex_flush(sna);
> - if (gen4_magic_ca_pass(sna, op))
> + if (gen4_magic_ca_pass(sna, op)) {
> + OUT_BATCH(MI_FLUSH |
> MI_INHIBIT_RENDER_CACHE_FLUSH);
> gen4_emit_pipelined_pointers(sna,
> op, op->op,
>
> op->u.gen4.wm_kernel);
> + }
> }
> OUT_BATCH(MI_FLUSH | MI_INHIBIT_RENDER_CACHE_FLUSH);
> rem = MAX_FLUSH_VERTICES;
>
> if you are happy that it reproduces reliably.
This change did not fully solve the problem. One text file in gedit
displayed as blank initially for a bit, although things then seemed
fine. But the freeze with "[drm] stuck on render ring" happened during a
second run of gtkperf - while the "GtkDrawingArea - Text" test was
running.
But I didn't spot any corrupted characters while running 2.99.907 with
MAX_FLUSH_VERTICES set back to 6 - although I hadn't been running that
for very long, and I only see a single garbled char occasionally, and I
think they only appear in Firefox.
--
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which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1098334
Title:
[gen4 sna] Font corruption
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[Ubuntu-x-swat] [Bug 1098334]
Created attachment 91389 intel_error_decode output the decoded error that occurred while running gtkperf, 2.99.907 with the change in comment #148 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1098334]
Created attachment 91383 gedit in openbox with 2.99.907 GM45 SNA I am finding that GM45 SNA seems unusable with 2.99.907 - git bisect pointed to the bad commit as: 9289e2c56b7f0cc78c5123691ad96611f0e04bed is the first bad commit commit 9289e2c56b7f0cc78c5123691ad96611f0e04bed Author: Chris Wilson Date: Mon Dec 16 11:39:20 2013 + sna/gen4: Sacrifice performance to workaround render corruption The problems are lines of text keep disappearing (and reappearing) in gedit, and the occasionally the screen becomes unresponsive for a short time and these messages appear in dmesg: [ 1702.349954] [drm] stuck on render ring [ 1702.349966] [drm] capturing error event; look for more information in /sys/class/drm/card0/error [ 1702.354334] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x32a1000 ctx 0) at 0x32a1110 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
