From: Nathan Chancellor <nathan@kernel.org>
To: Lee Jones <lee@kernel.org>
Cc: arnd@arndb.de, akpm@linux-foundation.org,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch,
ndesaulniers@google.com, trix@redhat.com, harry.wentland@amd.com,
sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com,
alexander.deucher@amd.com, christian.koenig@amd.com,
Xinhui.Pan@amd.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame
Date: Sun, 27 Nov 2022 22:52:38 -0700 [thread overview]
Message-ID: <Y4RMphf6BUGLA5B6@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20221125120750.3537134-2-lee@kernel.org>
On Fri, Nov 25, 2022 at 12:07:49PM +0000, Lee Jones wrote:
> calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> architectures built with Clang (all released versions), whereby the stack
> frame gets blown up to well over 5k. This would cause an immediate kernel
> panic on most architectures. We'll revert this when the following bug report
> has been resolved: https://github.com/llvm/llvm-project/issues/41896.
>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> drivers/gpu/drm/amd/display/Kconfig | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
> index 6925e0280dbe6..f4f3d2665a6b2 100644
> --- a/drivers/gpu/drm/amd/display/Kconfig
> +++ b/drivers/gpu/drm/amd/display/Kconfig
> @@ -5,6 +5,7 @@ menu "Display Engine Configuration"
> config DRM_AMD_DC
> bool "AMD DC - Enable new display engine"
> default y
> + depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
> select SND_HDA_COMPONENT if SND_HDA_CORE
> select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128)
> help
> @@ -12,6 +13,12 @@ config DRM_AMD_DC
> support for AMDGPU. This adds required support for Vega and
> Raven ASICs.
>
> + calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> + architectures built with Clang (all released versions), whereby the stack
> + frame gets blown up to well over 5k. This would cause an immediate kernel
> + panic on most architectures. We'll revert this when the following bug report
> + has been resolved: https://github.com/llvm/llvm-project/issues/41896.
> +
> config DRM_AMD_DC_DCN
> def_bool n
> help
> --
> 2.38.1.584.g0f3c55d4c2-goog
>
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: Lee Jones <lee@kernel.org>
Cc: llvm@lists.linux.dev, arnd@arndb.de, sunpeng.li@amd.com,
ndesaulniers@google.com, dri-devel@lists.freedesktop.org,
Xinhui.Pan@amd.com, linux-kernel@vger.kernel.org,
amd-gfx@lists.freedesktop.org, tzimmermann@suse.de,
trix@redhat.com, alexander.deucher@amd.com,
akpm@linux-foundation.org, Rodrigo.Siqueira@amd.com,
christian.koenig@amd.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame
Date: Sun, 27 Nov 2022 22:52:38 -0700 [thread overview]
Message-ID: <Y4RMphf6BUGLA5B6@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20221125120750.3537134-2-lee@kernel.org>
On Fri, Nov 25, 2022 at 12:07:49PM +0000, Lee Jones wrote:
> calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> architectures built with Clang (all released versions), whereby the stack
> frame gets blown up to well over 5k. This would cause an immediate kernel
> panic on most architectures. We'll revert this when the following bug report
> has been resolved: https://github.com/llvm/llvm-project/issues/41896.
>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> drivers/gpu/drm/amd/display/Kconfig | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
> index 6925e0280dbe6..f4f3d2665a6b2 100644
> --- a/drivers/gpu/drm/amd/display/Kconfig
> +++ b/drivers/gpu/drm/amd/display/Kconfig
> @@ -5,6 +5,7 @@ menu "Display Engine Configuration"
> config DRM_AMD_DC
> bool "AMD DC - Enable new display engine"
> default y
> + depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
> select SND_HDA_COMPONENT if SND_HDA_CORE
> select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128)
> help
> @@ -12,6 +13,12 @@ config DRM_AMD_DC
> support for AMDGPU. This adds required support for Vega and
> Raven ASICs.
>
> + calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> + architectures built with Clang (all released versions), whereby the stack
> + frame gets blown up to well over 5k. This would cause an immediate kernel
> + panic on most architectures. We'll revert this when the following bug report
> + has been resolved: https://github.com/llvm/llvm-project/issues/41896.
> +
> config DRM_AMD_DC_DCN
> def_bool n
> help
> --
> 2.38.1.584.g0f3c55d4c2-goog
>
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: Lee Jones <lee@kernel.org>
Cc: llvm@lists.linux.dev, daniel@ffwll.ch, arnd@arndb.de,
sunpeng.li@amd.com, ndesaulniers@google.com,
dri-devel@lists.freedesktop.org, Xinhui.Pan@amd.com,
maarten.lankhorst@linux.intel.com, linux-kernel@vger.kernel.org,
mripard@kernel.org, harry.wentland@amd.com,
amd-gfx@lists.freedesktop.org, tzimmermann@suse.de,
trix@redhat.com, alexander.deucher@amd.com,
akpm@linux-foundation.org, Rodrigo.Siqueira@amd.com,
airlied@gmail.com, christian.koenig@amd.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame
Date: Sun, 27 Nov 2022 22:52:38 -0700 [thread overview]
Message-ID: <Y4RMphf6BUGLA5B6@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20221125120750.3537134-2-lee@kernel.org>
On Fri, Nov 25, 2022 at 12:07:49PM +0000, Lee Jones wrote:
> calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> architectures built with Clang (all released versions), whereby the stack
> frame gets blown up to well over 5k. This would cause an immediate kernel
> panic on most architectures. We'll revert this when the following bug report
> has been resolved: https://github.com/llvm/llvm-project/issues/41896.
>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> drivers/gpu/drm/amd/display/Kconfig | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
> index 6925e0280dbe6..f4f3d2665a6b2 100644
> --- a/drivers/gpu/drm/amd/display/Kconfig
> +++ b/drivers/gpu/drm/amd/display/Kconfig
> @@ -5,6 +5,7 @@ menu "Display Engine Configuration"
> config DRM_AMD_DC
> bool "AMD DC - Enable new display engine"
> default y
> + depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
> select SND_HDA_COMPONENT if SND_HDA_CORE
> select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128)
> help
> @@ -12,6 +13,12 @@ config DRM_AMD_DC
> support for AMDGPU. This adds required support for Vega and
> Raven ASICs.
>
> + calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> + architectures built with Clang (all released versions), whereby the stack
> + frame gets blown up to well over 5k. This would cause an immediate kernel
> + panic on most architectures. We'll revert this when the following bug report
> + has been resolved: https://github.com/llvm/llvm-project/issues/41896.
> +
> config DRM_AMD_DC_DCN
> def_bool n
> help
> --
> 2.38.1.584.g0f3c55d4c2-goog
>
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org>
To: Lee Jones <lee@kernel.org>
Cc: arnd@arndb.de, akpm@linux-foundation.org,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch,
ndesaulniers@google.com, trix@redhat.com, harry.wentland@amd.com,
sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com,
alexander.deucher@amd.com, christian.koenig@amd.com,
Xinhui.Pan@amd.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame
Date: Sun, 27 Nov 2022 22:52:38 -0700 [thread overview]
Message-ID: <Y4RMphf6BUGLA5B6@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20221125120750.3537134-2-lee@kernel.org>
On Fri, Nov 25, 2022 at 12:07:49PM +0000, Lee Jones wrote:
> calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> architectures built with Clang (all released versions), whereby the stack
> frame gets blown up to well over 5k. This would cause an immediate kernel
> panic on most architectures. We'll revert this when the following bug report
> has been resolved: https://github.com/llvm/llvm-project/issues/41896.
>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> drivers/gpu/drm/amd/display/Kconfig | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
> index 6925e0280dbe6..f4f3d2665a6b2 100644
> --- a/drivers/gpu/drm/amd/display/Kconfig
> +++ b/drivers/gpu/drm/amd/display/Kconfig
> @@ -5,6 +5,7 @@ menu "Display Engine Configuration"
> config DRM_AMD_DC
> bool "AMD DC - Enable new display engine"
> default y
> + depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
> select SND_HDA_COMPONENT if SND_HDA_CORE
> select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128)
> help
> @@ -12,6 +13,12 @@ config DRM_AMD_DC
> support for AMDGPU. This adds required support for Vega and
> Raven ASICs.
>
> + calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64)
> + architectures built with Clang (all released versions), whereby the stack
> + frame gets blown up to well over 5k. This would cause an immediate kernel
> + panic on most architectures. We'll revert this when the following bug report
> + has been resolved: https://github.com/llvm/llvm-project/issues/41896.
> +
> config DRM_AMD_DC_DCN
> def_bool n
> help
> --
> 2.38.1.584.g0f3c55d4c2-goog
>
_______________________________________________
linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-11-28 5:52 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-25 12:07 [PATCH v2 0/2] Fix a bunch of allmodconfig errors Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 12:07 ` [PATCH v2 1/2] drm/amdgpu: Temporarily disable broken Clang builds due to blown stack-frame Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 12:11 ` Arnd Bergmann
2022-11-25 12:11 ` Arnd Bergmann
2022-11-25 12:11 ` Arnd Bergmann
2022-11-28 5:52 ` Nathan Chancellor [this message]
2022-11-28 5:52 ` Nathan Chancellor
2022-11-28 5:52 ` Nathan Chancellor
2022-11-28 5:52 ` Nathan Chancellor
2022-11-25 12:07 ` [PATCH v2 2/2] Kconfig.debug: Provide a little extra FRAME_WARN leeway when KASAN is enabled Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 12:07 ` Lee Jones
2022-11-25 13:40 ` Lee Jones
2022-11-25 13:40 ` Lee Jones
2022-11-25 13:40 ` Lee Jones
2022-11-25 13:57 ` Arnd Bergmann
2022-11-25 13:57 ` Arnd Bergmann
2022-11-25 13:57 ` Arnd Bergmann
2022-11-28 5:53 ` Nathan Chancellor
2022-11-28 5:53 ` Nathan Chancellor
2022-11-28 5:53 ` Nathan Chancellor
2022-11-28 5:53 ` Nathan Chancellor
2022-11-26 0:13 ` [PATCH v2 0/2] Fix a bunch of allmodconfig errors Andrew Morton
2022-11-26 0:13 ` Andrew Morton
2022-11-26 0:13 ` Andrew Morton
2022-11-26 0:13 ` Andrew Morton
2022-11-28 7:47 ` Lee Jones
2022-11-28 7:47 ` Lee Jones
2022-11-28 7:47 ` Lee Jones
2022-11-28 7:47 ` Lee Jones
2022-11-26 0:17 ` Andrew Morton
2022-11-26 0:17 ` Andrew Morton
2022-11-26 0:17 ` Andrew Morton
2022-11-26 0:17 ` Andrew Morton
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