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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
	Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Subject: [PATCH] drm/i915: Mark getparam ioctl as DRM_UNLOCKED
Date: Wed,  9 Sep 2015 16:46:49 +0200
Message-ID: <1441810009-12643-1-git-send-email-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <1441713391-24732-5-git-send-email-daniel.vetter@ffwll.ch>

With kms all the data getparam looks at is actually invariant, and
certainly not protected by the global kms mutex. With ums all the
setup code is already racy as hell, so this won't make things any
worse.

I've done this change so that all ioctl still used by kms drivers
are marked as DRM_UNLOCKED, besides that we obviously don't need
it any more in kms mode.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 5fff3e61610e..c2286a422333 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1224,7 +1224,7 @@ const struct drm_ioctl_desc i915_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER, drm_noop, DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, drm_noop, DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, drm_noop, DRM_AUTH),
-	DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH|DRM_RENDER_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(I915_SETPARAM, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 	DRM_IOCTL_DEF_DRV(I915_ALLOC, drm_noop, DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(I915_FREE, drm_noop, DRM_AUTH),
-- 
2.5.1

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  parent reply index

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-08 11:56 [PATCH 00/11] Mixed bag of ioctl and agp cleanups Daniel Vetter
2015-09-08 11:56 ` [PATCH 01/11] drm: Remove __OS_HAS_AGP Daniel Vetter
2015-09-09 12:53   ` Ville Syrjälä
2015-09-09 14:45   ` [PATCH] " Daniel Vetter
2015-09-28 15:05     ` David Herrmann
2015-09-08 11:56 ` [PATCH 02/11] drm/i915: Kill cross-module option depencies Daniel Vetter
2015-09-08 11:56 ` [PATCH 03/11] drm/i915: Mark debug mod options as _unsafe Daniel Vetter
2015-09-22  9:34   ` Jani Nikula
2015-09-22  9:54     ` Daniel Vetter
2015-09-08 11:56 ` [PATCH 04/11] drm/i915: Remove setparam ioctl Daniel Vetter
2015-09-09 13:02   ` Ville Syrjälä
2015-09-09 14:46   ` Daniel Vetter [this message]
2015-09-30  8:46   ` [PATCH] " Daniel Vetter
2015-09-30  8:50     ` Chris Wilson
2015-09-30 13:40     ` Ville Syrjälä
2015-09-08 11:56 ` [PATCH 05/11] drm/i915: Mark getparam ioctl as DRM_UNLOCKED Daniel Vetter
2015-10-09 10:00   ` Chris Wilson
2015-09-08 11:56 ` [PATCH 06/11] drm: Define a drm_invalid_op ioctl implementation Daniel Vetter
2015-09-09 12:28   ` David Herrmann
2015-09-08 11:56 ` [PATCH 07/11] drm/drm_ioctl.c: kerneldoc Daniel Vetter
2015-09-28 15:07   ` David Herrmann
2015-09-08 11:56 ` [PATCH 08/11] drm: Enforce unlocked ioctl operation for kms driver ioctls Daniel Vetter
2015-09-08 18:45   ` Gustavo Padovan
2015-09-28 15:21   ` David Herrmann
2015-09-28 19:42   ` [PATCH] " Daniel Vetter
2015-09-08 11:56 ` [PATCH 09/11] drm/vmwgfx: Stop checking for DRM_UNLOCKED Daniel Vetter
2015-09-28 15:22   ` David Herrmann
2015-09-08 11:56 ` [PATCH 10/11] drm/<drivers>: Drop DRM_UNLOCKED from modeset drivers Daniel Vetter
2015-09-08 18:46   ` [Intel-gfx] " Gustavo Padovan
2015-09-28 15:24   ` David Herrmann
2015-09-08 11:56 ` [PATCH 11/11] drm: Remove dummy agp ioctl wrappers Daniel Vetter
2015-09-28 15:25   ` David Herrmann
2015-09-08 12:58 ` [PATCH 00/11] Mixed bag of ioctl and agp cleanups Christian König
2015-10-08 17:01   ` Daniel Vetter

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