diff mbox series

[1/9] Revert "drm/i915/tgl: Include ro parts of l3 to invalidate"

Message ID 20200430154735.22434-1-mika.kuoppala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series [1/9] Revert "drm/i915/tgl: Include ro parts of l3 to invalidate" | expand

Commit Message

Mika Kuoppala April 30, 2020, 3:47 p.m. UTC
This reverts commit 62037ffff229b7d94f1db5ef8d2e2ec819832ef3.

L3 ro cache invalidation is part of the dword0 of pipe
control. Also it is not relevant to this gen.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gpu_commands.h | 1 -
 drivers/gpu/drm/i915/gt/intel_lrc.c          | 1 -
 2 files changed, 2 deletions(-)

Comments

Chris Wilson April 30, 2020, 4:30 p.m. UTC | #1
Quoting Patchwork (2020-04-30 17:25:55)
> == Series Details ==
> 
> Series: series starting with [1/9] Revert "drm/i915/tgl: Include ro parts of l3 to invalidate"
> URL   : https://patchwork.freedesktop.org/series/76777/
> State : success
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8401 -> Patchwork_17529
> ====================================================
> 
> Summary
> -------
> 
>   **SUCCESS**

Coherency/pipecontrol are the worst. How do we design tests to even
detect and probe for unknown missed flushes?

I wonder if there are some debug [context] registers that can tell us the
status of all caches? Set to nonzero for a dirty cache, and we're allowed
to set, but is then cleared by pipecontrol. Seems worth asking.
-Chris
Chris Wilson May 3, 2020, 9:18 p.m. UTC | #2
Quoting Mika Kuoppala (2020-04-30 16:47:27)
> This reverts commit 62037ffff229b7d94f1db5ef8d2e2ec819832ef3.
> 
> L3 ro cache invalidation is part of the dword0 of pipe
> control.

True.

> Also it is not relevant to this gen.

?

> Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
index ee10122a511e..b3cf09657fb2 100644
--- a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
+++ b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
@@ -236,7 +236,6 @@ 
 #define   PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH	(1<<12) /* gen6+ */
 #define   PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE	(1<<11) /* MBZ on ILK */
 #define   PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE		(1<<10) /* GM45+ only */
-#define   PIPE_CONTROL_L3_RO_CACHE_INVALIDATE		REG_BIT(10) /* gen12 */
 #define   PIPE_CONTROL_INDIRECT_STATE_DISABLE		(1<<9)
 #define   PIPE_CONTROL_HDC_PIPELINE_FLUSH		REG_BIT(9)  /* gen12 */
 #define   PIPE_CONTROL_NOTIFY				(1<<8)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 4311b12542fb..8f82b960f2a1 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -4585,7 +4585,6 @@  static int gen12_emit_flush_render(struct i915_request *request,
 		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
 		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
 		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_L3_RO_CACHE_INVALIDATE;
 
 		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
 		flags |= PIPE_CONTROL_QW_WRITE;