[Intel-gfx] [PATCH 0/3] drm/i915: Fix header test and log spam on !x86

[Intel-gfx] [PATCH 0/3] drm/i915: Fix header test and log spam on !x86

[Lucas De Marchi]

Some minor fixes and changes to help porting i915 to arm64, or even
anything !x86.

Lucas De Marchi (3):
  drm: Stop spamming log with drm_cache message
  drm/i915: Do not spam log with missiing arch support
  drm/i915: Fix header test for !CONFIG_X86

 drivers/gpu/drm/drm_cache.c    | 3 ---
 drivers/gpu/drm/i915/i915_mm.h | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

-- 
2.34.1

[PATCH 0/3] drm/i915: Fix header test and log spam on !x86

[Lucas De Marchi]

Some minor fixes and changes to help porting i915 to arm64, or even
anything !x86.

Lucas De Marchi (3):
  drm: Stop spamming log with drm_cache message
  drm/i915: Do not spam log with missiing arch support
  drm/i915: Fix header test for !CONFIG_X86

 drivers/gpu/drm/drm_cache.c    | 3 ---
 drivers/gpu/drm/i915/i915_mm.h | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

-- 
2.34.1

[Intel-gfx] [PATCH 1/3] drm: Stop spamming log with drm_cache message

[Lucas De Marchi]

Only x86 and in some cases PPC have support added in drm_cache.c for the
clflush class of functions. However warning once is sufficient to taint
the log instead of spamming it with "Architecture has no drm_cache.c
support" every few millisecond.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/drm_cache.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index f19d9acbe959..2d5a4c463a4f 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
 		kunmap_atomic(page_virtual);
 	}
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
@@ -143,7 +142,6 @@ drm_clflush_sg(struct sg_table *st)
 	if (wbinvd_on_all_cpus())
 		pr_err("Timed out waiting for cache flush\n");
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
@@ -177,7 +175,6 @@ drm_clflush_virt_range(void *addr, unsigned long length)
 	if (wbinvd_on_all_cpus())
 		pr_err("Timed out waiting for cache flush\n");
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
-- 
2.34.1

[PATCH 1/3] drm: Stop spamming log with drm_cache message

[Lucas De Marchi]

Only x86 and in some cases PPC have support added in drm_cache.c for the
clflush class of functions. However warning once is sufficient to taint
the log instead of spamming it with "Architecture has no drm_cache.c
support" every few millisecond.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/drm_cache.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index f19d9acbe959..2d5a4c463a4f 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
 		kunmap_atomic(page_virtual);
 	}
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
@@ -143,7 +142,6 @@ drm_clflush_sg(struct sg_table *st)
 	if (wbinvd_on_all_cpus())
 		pr_err("Timed out waiting for cache flush\n");
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
@@ -177,7 +175,6 @@ drm_clflush_virt_range(void *addr, unsigned long length)
 	if (wbinvd_on_all_cpus())
 		pr_err("Timed out waiting for cache flush\n");
 #else
-	pr_err("Architecture has no drm_cache.c support\n");
 	WARN_ON_ONCE(1);
 #endif
 }
-- 
2.34.1

[Intel-gfx] [PATCH 2/3] drm/i915: Do not spam log with missiing arch support

[Lucas De Marchi]

Following what was done in drm_cache.c, when the stub for
remap_io_mapping() was added in commit 67c430bbaae1 ("drm/i915: Skip
remap_io_mapping() for non-x86 platforms"), it was added a log message.
However the WARN_ON_ONCE() should already be enough - we don't want to
spam the log with those messages.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/i915_mm.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_mm.h b/drivers/gpu/drm/i915/i915_mm.h
index 76f1d53bdf34..ed04fc756271 100644
--- a/drivers/gpu/drm/i915/i915_mm.h
+++ b/drivers/gpu/drm/i915/i915_mm.h
@@ -22,7 +22,6 @@ int remap_io_mapping(struct vm_area_struct *vma,
 		     unsigned long addr, unsigned long pfn, unsigned long size,
 		     struct io_mapping *iomap)
 {
-	pr_err("Architecture has no %s() and shouldn't be calling this function\n", __func__);
 	WARN_ON_ONCE(1);
 	return 0;
 }
-- 
2.34.1

[PATCH 2/3] drm/i915: Do not spam log with missiing arch support

[Lucas De Marchi]

Following what was done in drm_cache.c, when the stub for
remap_io_mapping() was added in commit 67c430bbaae1 ("drm/i915: Skip
remap_io_mapping() for non-x86 platforms"), it was added a log message.
However the WARN_ON_ONCE() should already be enough - we don't want to
spam the log with those messages.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/i915_mm.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_mm.h b/drivers/gpu/drm/i915/i915_mm.h
index 76f1d53bdf34..ed04fc756271 100644
--- a/drivers/gpu/drm/i915/i915_mm.h
+++ b/drivers/gpu/drm/i915/i915_mm.h
@@ -22,7 +22,6 @@ int remap_io_mapping(struct vm_area_struct *vma,
 		     unsigned long addr, unsigned long pfn, unsigned long size,
 		     struct io_mapping *iomap)
 {
-	pr_err("Architecture has no %s() and shouldn't be calling this function\n", __func__);
 	WARN_ON_ONCE(1);
 	return 0;
 }
-- 
2.34.1

[Intel-gfx] [PATCH 3/3] drm/i915: Fix header test for !CONFIG_X86

[Lucas De Marchi]

Architectures others than x86 have a stub implementation calling
WARN_ON_ONCE(). The appropriate headers need to be included, otherwise
the header-test target will fail with:

  HDRTEST drivers/gpu/drm/i915/i915_mm.h
In file included from <command-line>:
./drivers/gpu/drm/i915/i915_mm.h: In function ‘remap_io_mapping’:
./drivers/gpu/drm/i915/i915_mm.h:26:2: error: implicit declaration of function ‘WARN_ON_ONCE’ [-Werror=implicit-function-declaration]
   26 |  WARN_ON_ONCE(1);
      |  ^~~~~~~~~~~~

v2: Do not include <linux/printk.h> since call to pr_err() has been
removed

Fixes: 67c430bbaae1 ("drm/i915: Skip remap_io_mapping() for non-x86 platforms")
Cc: Siva Mullati <siva.mullati@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/i915_mm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_mm.h b/drivers/gpu/drm/i915/i915_mm.h
index ed04fc756271..bc30581b20f6 100644
--- a/drivers/gpu/drm/i915/i915_mm.h
+++ b/drivers/gpu/drm/i915/i915_mm.h
@@ -6,6 +6,7 @@
 #ifndef __I915_MM_H__
 #define __I915_MM_H__
 
+#include <linux/bug.h>
 #include <linux/types.h>
 
 struct vm_area_struct;
-- 
2.34.1

[PATCH 3/3] drm/i915: Fix header test for !CONFIG_X86

[Lucas De Marchi]

Architectures others than x86 have a stub implementation calling
WARN_ON_ONCE(). The appropriate headers need to be included, otherwise
the header-test target will fail with:

  HDRTEST drivers/gpu/drm/i915/i915_mm.h
In file included from <command-line>:
./drivers/gpu/drm/i915/i915_mm.h: In function ‘remap_io_mapping’:
./drivers/gpu/drm/i915/i915_mm.h:26:2: error: implicit declaration of function ‘WARN_ON_ONCE’ [-Werror=implicit-function-declaration]
   26 |  WARN_ON_ONCE(1);
      |  ^~~~~~~~~~~~

v2: Do not include <linux/printk.h> since call to pr_err() has been
removed

Fixes: 67c430bbaae1 ("drm/i915: Skip remap_io_mapping() for non-x86 platforms")
Cc: Siva Mullati <siva.mullati@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/i915_mm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_mm.h b/drivers/gpu/drm/i915/i915_mm.h
index ed04fc756271..bc30581b20f6 100644
--- a/drivers/gpu/drm/i915/i915_mm.h
+++ b/drivers/gpu/drm/i915/i915_mm.h
@@ -6,6 +6,7 @@
 #ifndef __I915_MM_H__
 #define __I915_MM_H__
 
+#include <linux/bug.h>
 #include <linux/types.h>
 
 struct vm_area_struct;
-- 
2.34.1

[Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915: Fix header test and log spam on !x86

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 6868 bytes --]

== Series Details ==

Series: drm/i915: Fix header test and log spam on !x86
URL   : https://patchwork.freedesktop.org/series/99344/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_11136 -> Patchwork_22106
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_22106 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_22106, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/index.html

Participating hosts (45 -> 44)
------------------------------

  Additional (2): fi-icl-u2 fi-pnv-d510 
  Missing    (3): fi-ctg-p8600 fi-bdw-samus fi-hsw-4200u 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_22106:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_exec_suspend@basic-s0@smem:
    - fi-kbl-soraka:      [PASS][1] -> [INCOMPLETE][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11136/fi-kbl-soraka/igt@gem_exec_suspend@basic-s0@smem.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-kbl-soraka/igt@gem_exec_suspend@basic-s0@smem.html

  
Known issues
------------

  Here are the changes found in Patchwork_22106 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_cs_nop@fork-gfx0:
    - fi-icl-u2:          NOTRUN -> [SKIP][3] ([fdo#109315]) +17 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@amdgpu/amd_cs_nop@fork-gfx0.html

  * igt@gem_huc_copy@huc-copy:
    - fi-icl-u2:          NOTRUN -> [SKIP][4] ([i915#2190])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@gem_huc_copy@huc-copy.html

  * igt@gem_lmem_swapping@parallel-random-engines:
    - fi-icl-u2:          NOTRUN -> [SKIP][5] ([i915#4613]) +3 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@gem_lmem_swapping@parallel-random-engines.html

  * igt@i915_selftest@live@requests:
    - fi-pnv-d510:        NOTRUN -> [DMESG-FAIL][6] ([i915#2927] / [i915#4528])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-pnv-d510/igt@i915_selftest@live@requests.html

  * igt@kms_chamelium@hdmi-hpd-fast:
    - fi-icl-u2:          NOTRUN -> [SKIP][7] ([fdo#111827]) +8 similar issues
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@kms_chamelium@hdmi-hpd-fast.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - fi-icl-u2:          NOTRUN -> [SKIP][8] ([fdo#109278]) +2 similar issues
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_force_connector_basic@force-load-detect:
    - fi-icl-u2:          NOTRUN -> [SKIP][9] ([fdo#109285])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@kms_force_connector_basic@force-load-detect.html

  * igt@prime_vgem@basic-userptr:
    - fi-pnv-d510:        NOTRUN -> [SKIP][10] ([fdo#109271]) +39 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-pnv-d510/igt@prime_vgem@basic-userptr.html
    - fi-icl-u2:          NOTRUN -> [SKIP][11] ([i915#3301])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-icl-u2/igt@prime_vgem@basic-userptr.html

  * igt@runner@aborted:
    - fi-pnv-d510:        NOTRUN -> [FAIL][12] ([fdo#109271] / [i915#2403] / [i915#4312])
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-pnv-d510/igt@runner@aborted.html
    - fi-bdw-5557u:       NOTRUN -> [FAIL][13] ([i915#2426] / [i915#4312])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-bdw-5557u/igt@runner@aborted.html

  
#### Warnings ####

  * igt@i915_selftest@live:
    - fi-skl-6600u:       [INCOMPLETE][14] ([i915#4794]) -> [FAIL][15] ([i915#4547])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11136/fi-skl-6600u/igt@i915_selftest@live.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-skl-6600u/igt@i915_selftest@live.html

  * igt@runner@aborted:
    - fi-skl-6600u:       [FAIL][16] ([i915#1436] / [i915#2722] / [i915#4312]) -> [FAIL][17] ([i915#1436] / [i915#4312])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11136/fi-skl-6600u/igt@runner@aborted.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/fi-skl-6600u/igt@runner@aborted.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109315]: https://bugs.freedesktop.org/show_bug.cgi?id=109315
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2403]: https://gitlab.freedesktop.org/drm/intel/issues/2403
  [i915#2426]: https://gitlab.freedesktop.org/drm/intel/issues/2426
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#2722]: https://gitlab.freedesktop.org/drm/intel/issues/2722
  [i915#2927]: https://gitlab.freedesktop.org/drm/intel/issues/2927
  [i915#3301]: https://gitlab.freedesktop.org/drm/intel/issues/3301
  [i915#4312]: https://gitlab.freedesktop.org/drm/intel/issues/4312
  [i915#4528]: https://gitlab.freedesktop.org/drm/intel/issues/4528
  [i915#4547]: https://gitlab.freedesktop.org/drm/intel/issues/4547
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#4794]: https://gitlab.freedesktop.org/drm/intel/issues/4794
  [i915#4898]: https://gitlab.freedesktop.org/drm/intel/issues/4898


Build changes
-------------

  * Linux: CI_DRM_11136 -> Patchwork_22106

  CI-20190529: 20190529
  CI_DRM_11136: 06ca272153ea97bf87eb490ecd540dd8527d5497 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6332: 27c9c3f5181a840c777399be7681d2cadd7940cd @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_22106: 08c832c7702cd00aef2adcfd2aa612fa412671f5 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

08c832c7702c drm/i915: Fix header test for !CONFIG_X86
92a5026ff92b drm/i915: Do not spam log with missiing arch support
b1a7549c96e5 drm: Stop spamming log with drm_cache message

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22106/index.html

[-- Attachment #2: Type: text/html, Size: 8025 bytes --]

Re: [Intel-gfx] [PATCH 1/3] drm: Stop spamming log with drm_cache message

[Jani Nikula]

On Tue, 25 Jan 2022, Lucas De Marchi <lucas.demarchi@intel.com> wrote:
> Only x86 and in some cases PPC have support added in drm_cache.c for the
> clflush class of functions. However warning once is sufficient to taint
> the log instead of spamming it with "Architecture has no drm_cache.c
> support" every few millisecond.
>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> ---
>  drivers/gpu/drm/drm_cache.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
> index f19d9acbe959..2d5a4c463a4f 100644
> --- a/drivers/gpu/drm/drm_cache.c
> +++ b/drivers/gpu/drm/drm_cache.c
> @@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
>  		kunmap_atomic(page_virtual);
>  	}
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);

An alternative would be to replace the two lines with:

	WARN_ONCE(1, "Architecture has no drm_cache.c support\n");

But I'm not insisting.

BR,
Jani.


>  #endif
>  }
> @@ -143,7 +142,6 @@ drm_clflush_sg(struct sg_table *st)
>  	if (wbinvd_on_all_cpus())
>  		pr_err("Timed out waiting for cache flush\n");
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);
>  #endif
>  }
> @@ -177,7 +175,6 @@ drm_clflush_virt_range(void *addr, unsigned long length)
>  	if (wbinvd_on_all_cpus())
>  		pr_err("Timed out waiting for cache flush\n");
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);
>  #endif
>  }

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH 1/3] drm: Stop spamming log with drm_cache message

[Jani Nikula]

On Tue, 25 Jan 2022, Lucas De Marchi <lucas.demarchi@intel.com> wrote:
> Only x86 and in some cases PPC have support added in drm_cache.c for the
> clflush class of functions. However warning once is sufficient to taint
> the log instead of spamming it with "Architecture has no drm_cache.c
> support" every few millisecond.
>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> ---
>  drivers/gpu/drm/drm_cache.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
> index f19d9acbe959..2d5a4c463a4f 100644
> --- a/drivers/gpu/drm/drm_cache.c
> +++ b/drivers/gpu/drm/drm_cache.c
> @@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
>  		kunmap_atomic(page_virtual);
>  	}
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);

An alternative would be to replace the two lines with:

	WARN_ONCE(1, "Architecture has no drm_cache.c support\n");

But I'm not insisting.

BR,
Jani.


>  #endif
>  }
> @@ -143,7 +142,6 @@ drm_clflush_sg(struct sg_table *st)
>  	if (wbinvd_on_all_cpus())
>  		pr_err("Timed out waiting for cache flush\n");
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);
>  #endif
>  }
> @@ -177,7 +175,6 @@ drm_clflush_virt_range(void *addr, unsigned long length)
>  	if (wbinvd_on_all_cpus())
>  		pr_err("Timed out waiting for cache flush\n");
>  #else
> -	pr_err("Architecture has no drm_cache.c support\n");
>  	WARN_ON_ONCE(1);
>  #endif
>  }

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH 1/3] drm: Stop spamming log with drm_cache message

[Lucas De Marchi]

On Wed, Jan 26, 2022 at 08:24:54PM +0200, Jani Nikula wrote:
>On Tue, 25 Jan 2022, Lucas De Marchi <lucas.demarchi@intel.com> wrote:
>> Only x86 and in some cases PPC have support added in drm_cache.c for the
>> clflush class of functions. However warning once is sufficient to taint
>> the log instead of spamming it with "Architecture has no drm_cache.c
>> support" every few millisecond.
>>
>> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>> Cc: Maxime Ripard <mripard@kernel.org>
>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: David Airlie <airlied@linux.ie>
>> Cc: Daniel Vetter <daniel@ffwll.ch>
>> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
>> ---
>>  drivers/gpu/drm/drm_cache.c | 3 ---
>>  1 file changed, 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
>> index f19d9acbe959..2d5a4c463a4f 100644
>> --- a/drivers/gpu/drm/drm_cache.c
>> +++ b/drivers/gpu/drm/drm_cache.c
>> @@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
>>  		kunmap_atomic(page_virtual);
>>  	}
>>  #else
>> -	pr_err("Architecture has no drm_cache.c support\n");
>>  	WARN_ON_ONCE(1);
>
>An alternative would be to replace the two lines with:
>
>	WARN_ONCE(1, "Architecture has no drm_cache.c support\n");
>
>But I'm not insisting.

I actually like that suggestion. I will change that in the next version.

Thanks
Lucas De Marchi

Re: [Intel-gfx] [PATCH 1/3] drm: Stop spamming log with drm_cache message

[Lucas De Marchi]

On Wed, Jan 26, 2022 at 08:24:54PM +0200, Jani Nikula wrote:
>On Tue, 25 Jan 2022, Lucas De Marchi <lucas.demarchi@intel.com> wrote:
>> Only x86 and in some cases PPC have support added in drm_cache.c for the
>> clflush class of functions. However warning once is sufficient to taint
>> the log instead of spamming it with "Architecture has no drm_cache.c
>> support" every few millisecond.
>>
>> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>> Cc: Maxime Ripard <mripard@kernel.org>
>> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>> Cc: David Airlie <airlied@linux.ie>
>> Cc: Daniel Vetter <daniel@ffwll.ch>
>> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
>> ---
>>  drivers/gpu/drm/drm_cache.c | 3 ---
>>  1 file changed, 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
>> index f19d9acbe959..2d5a4c463a4f 100644
>> --- a/drivers/gpu/drm/drm_cache.c
>> +++ b/drivers/gpu/drm/drm_cache.c
>> @@ -112,7 +112,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
>>  		kunmap_atomic(page_virtual);
>>  	}
>>  #else
>> -	pr_err("Architecture has no drm_cache.c support\n");
>>  	WARN_ON_ONCE(1);
>
>An alternative would be to replace the two lines with:
>
>	WARN_ONCE(1, "Architecture has no drm_cache.c support\n");
>
>But I'm not insisting.

I actually like that suggestion. I will change that in the next version.

Thanks
Lucas De Marchi