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From a22a81a0de76b96b01f32f59fd2a4b4af675d9b1 Mon Sep 17 00:00:00 2001
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From: Adam Jackson <ajax@redhat.com>
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Date: Fri, 5 Oct 2018 15:12:18 -0400
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Subject: [PATCH] modesetting: Hide atomic behind Option "Atomic" "[boolean]"
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You can turn it on if the kernel driver supports it and you ask for it
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explicitly, but right now it's too fragile.
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Signed-off-by: Adam Jackson <ajax@redhat.com>
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---
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hw/xfree86/drivers/modesetting/driver.c | 5 ++++-
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hw/xfree86/drivers/modesetting/driver.h | 1 +
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2 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/hw/xfree86/drivers/modesetting/driver.c b/hw/xfree86/drivers/modesetting/driver.c
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index 24311c1..4fc62e4 100644
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--- a/hw/xfree86/drivers/modesetting/driver.c
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+++ b/hw/xfree86/drivers/modesetting/driver.c
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@@ -131,6 +131,7 @@ static const OptionInfoRec Options[] = {
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{OPTION_PAGEFLIP, "PageFlip", OPTV_BOOLEAN, {0}, FALSE},
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{OPTION_ZAPHOD_HEADS, "ZaphodHeads", OPTV_STRING, {0}, FALSE},
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{OPTION_DOUBLE_SHADOW, "DoubleShadow", OPTV_BOOLEAN, {0}, FALSE},
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+ {OPTION_ATOMIC, "Atomic", OPTV_BOOLEAN, {0}, FALSE},
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{-1, NULL, OPTV_NONE, {0}, FALSE}
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};
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@@ -1061,7 +1062,9 @@ PreInit(ScrnInfoPtr pScrn, int flags)
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}
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ret = drmSetClientCap(ms->fd, DRM_CLIENT_CAP_ATOMIC, 1);
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- ms->atomic_modeset = (ret == 0);
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+ if ((ms->atomic_modeset = (ret == 0)))
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+ ms->atomic_modeset = xf86ReturnOptValBool(ms->drmmode.Options,
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+ OPTION_ATOMIC, FALSE);
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ms->kms_has_modifiers = FALSE;
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ret = drmGetCap(ms->fd, DRM_CAP_ADDFB2_MODIFIERS, &value);
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diff --git a/hw/xfree86/drivers/modesetting/driver.h b/hw/xfree86/drivers/modesetting/driver.h
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index c8db4b8..46ba78a 100644
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--- a/hw/xfree86/drivers/modesetting/driver.h
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+++ b/hw/xfree86/drivers/modesetting/driver.h
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@@ -51,6 +51,7 @@ typedef enum {
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OPTION_PAGEFLIP,
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OPTION_ZAPHOD_HEADS,
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OPTION_DOUBLE_SHADOW,
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+ OPTION_ATOMIC,
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} modesettingOpts;
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typedef struct
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--
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2.19.0
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