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From 15c65a202c38fd5b3705c70e129c71a07fc279a9 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Tue, 1 Dec 2015 11:48:32 -0500
Subject: [PATCH 0801/1050] amdgpu/gfxv8: Simplification of
gfx_v8_0_create_bitmask()
Simplification of the function gfx_v8_0_create_bitmask().
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 4a3ba16..8b9e86c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -2261,13 +2261,7 @@ static void gfx_v8_0_tiling_mode_table_init(struct amdgpu_device *adev)
static u32 gfx_v8_0_create_bitmask(u32 bit_width)
{
- u32 i, mask = 0;
-
- for (i = 0; i < bit_width; i++) {
- mask <<= 1;
- mask |= 1;
- }
- return mask;
+ return (u32)((1ULL << bit_width) - 1);
}
void gfx_v8_0_select_se_sh(struct amdgpu_device *adev, u32 se_num, u32 sh_num)
--
1.9.1
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