linux-kernel - [PATCH 2/9] x86/early-quirks: replace the magical increment start values

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Message-Id: <20171207122839.29925-3-matthew.auld@intel.com>
Date:   Thu,  7 Dec 2017 12:28:32 +0000
From:   Matthew Auld <matthew.auld@...el.com>
To:     intel-gfx@...ts.freedesktop.org
Cc:     Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Paulo Zanoni <paulo.r.zanoni@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/9] x86/early-quirks: replace the magical increment start values

Replace the magical +2, +9 etc. with +MB, which is far easier to read.

Suggested-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@...el.com>
Cc: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc: Chris Wilson <chris@...is-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@...el.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: x86@...nel.org
Cc: linux-kernel@...r.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
---
 arch/x86/kernel/early-quirks.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index b5855b00a8cc..ef0f4190f290 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -428,9 +428,9 @@ static resource_size_t __init chv_stolen_size(int num, int slot, int func)
 	if (gms < 0x11)
 		return gms * MB(32);
 	else if (gms < 0x17)
-		return (gms - 0x11 + 2) * MB(4);
+		return (gms - 0x11) * MB(4) + MB(8);
 	else
-		return (gms - 0x17 + 9) * MB(4);
+		return (gms - 0x17) * MB(4) + MB(36);
 }
 
 static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
@@ -446,7 +446,7 @@ static resource_size_t __init gen9_stolen_size(int num, int slot, int func)
 	if (gms < 0xf0)
 		return gms * MB(32);
 	else
-		return (gms - 0xf0 + 1) * MB(4);
+		return (gms - 0xf0) * MB(4) + MB(4);
 }
 
 struct intel_early_ops {
-- 
2.14.3