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From: Anson Jacob <Anson.Jacob@amd.com>
To: <mpe@ellerman.id.au>, <benh@kernel.crashing.org>,
	<paulus@samba.org>, <christophe.leroy@csgroup.eu>,
	<linuxppc-dev@lists.ozlabs.org>, <amd-gfx@lists.freedesktop.org>,
	<linux-kernel@vger.kernel.org>
Cc: Sunpeng.Li@amd.com, "Harry Wentland" <harry.wentland@amd.com>,
	qingqing.zhuo@amd.com, Rodrigo.Siqueira@amd.com,
	roman.li@amd.com, "Christoph Hellwig" <hch@infradead.org>,
	Anson.Jacob@amd.com, Aurabindo.Pillai@amd.com,
	Bhawanpreet.Lakha@amd.com,
	"Christian König" <christian.koenig@amd.com>,
	bindu.r@amd.com
Subject: [RFC v2 2/2] drm/amd/display: Use PPC FPU functions
Date: Wed, 21 Jul 2021 00:48:01 -0400	[thread overview]
Message-ID: <20210721044801.840501-3-Anson.Jacob@amd.com> (raw)
In-Reply-To: <20210721044801.840501-1-Anson.Jacob@amd.com>

Use kernel_fpu_begin & kernel_fpu_end for PPC

Depends on "ppc/fpu: Add generic FPU api similar to x86"

v2:
- Got rid of macro switch for PPC as header file with same
  name as x86 is added by previous patch in the series

Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
CC: Christoph Hellwig <hch@infradead.org>
CC: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
CC: Harry Wentland <harry.wentland@amd.com>
CC: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/display/dc/os_types.h | 29 -----------------------
 1 file changed, 29 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
index 126c2f3a4dd3..47ef434f93d8 100644
--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
@@ -51,38 +51,9 @@
 #define dm_error(fmt, ...) DRM_ERROR(fmt, ##__VA_ARGS__)
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
-#if defined(CONFIG_X86)
 #include <asm/fpu/api.h>
 #define DC_FP_START() kernel_fpu_begin()
 #define DC_FP_END() kernel_fpu_end()
-#elif defined(CONFIG_PPC64)
-#include <asm/switch_to.h>
-#include <asm/cputable.h>
-#define DC_FP_START() { \
-	if (cpu_has_feature(CPU_FTR_VSX_COMP)) { \
-		preempt_disable(); \
-		enable_kernel_vsx(); \
-	} else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { \
-		preempt_disable(); \
-		enable_kernel_altivec(); \
-	} else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) { \
-		preempt_disable(); \
-		enable_kernel_fp(); \
-	} \
-}
-#define DC_FP_END() { \
-	if (cpu_has_feature(CPU_FTR_VSX_COMP)) { \
-		disable_kernel_vsx(); \
-		preempt_enable(); \
-	} else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { \
-		disable_kernel_altivec(); \
-		preempt_enable(); \
-	} else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) { \
-		disable_kernel_fp(); \
-		preempt_enable(); \
-	} \
-}
-#endif
 #endif
 
 /*
-- 
2.25.1


  parent reply	other threads:[~2021-07-21  4:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21  4:47 [RFC v2 0/2] PPC: Add generic FPU api similar to x86 Anson Jacob
2021-07-21  4:48 ` [RFC v2 1/2] ppc/fpu: " Anson Jacob
2021-07-21  6:58   ` Christoph Hellwig
2021-07-21  4:48 ` Anson Jacob [this message]
2021-07-21  6:29   ` [RFC v2 2/2] drm/amd/display: Use PPC FPU functions Christian König
2021-07-21  6:51     ` Christoph Hellwig
2021-07-21  9:24       ` Christian König

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