From: Thomas Zimmermann <tzimmermann@suse.de>
To: daniel@ffwll.ch, airlied@linux.ie, sam@ravnborg.org,
mripard@kernel.org, maarten.lankhorst@linux.intel.com,
christian.koenig@amd.com, ville.syrjala@linux.intel.com
Cc: Thomas Zimmermann <tzimmermann@suse.de>, dri-devel@lists.freedesktop.org
Subject: [PATCH v2 09/10] drm/fb-helper: Copy dma-buf map before flushing shadow fb
Date: Fri, 20 Nov 2020 11:25:44 +0100 [thread overview]
Message-ID: <20201120102545.4047-10-tzimmermann@suse.de> (raw)
In-Reply-To: <20201120102545.4047-1-tzimmermann@suse.de>
Copy the vmap()'ed instance of struct dma_buf_map before modifying it,
in case the implementation of vunmap() depends on the exact address.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/drm_fb_helper.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index b36d9852cdf7..d972ce75d180 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -395,14 +395,15 @@ static int drm_fb_helper_damage_blit(struct drm_fb_helper *fb_helper,
struct drm_clip_rect *clip)
{
struct drm_client_buffer *buffer = fb_helper->buffer;
- struct dma_buf_map map;
+ struct dma_buf_map map, dst;
int ret;
ret = drm_client_buffer_vmap(buffer, &map);
if (ret)
return ret;
- drm_fb_helper_damage_blit_real(fb_helper, clip, &map);
+ dst = map;
+ drm_fb_helper_damage_blit_real(fb_helper, clip, &dst);
drm_client_buffer_vunmap(buffer);
--
2.29.2
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next prev parent reply other threads:[~2020-11-20 10:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-20 10:25 [PATCH v2 00/10] drm/fb-helper: Various fixes and cleanups Thomas Zimmermann
2020-11-20 10:25 ` [PATCH v2 01/10] drm/fb-helper: Call dirty helper after writing to fbdev Thomas Zimmermann
2020-11-23 19:20 ` Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 02/10] drm/fb-helper: Unmap client buffer during shutdown Thomas Zimmermann
2020-11-23 19:20 ` Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 03/10] drm/client: Depend on GEM object kmap ref-counting Thomas Zimmermann
2020-11-20 10:25 ` [PATCH v2 04/10] drm/fb-helper: Rename dirty worker to damage worker Thomas Zimmermann
2020-11-23 19:22 ` Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 05/10] drm/fb-helper: Return early in dirty worker Thomas Zimmermann
2020-11-23 19:23 ` Sam Ravnborg
2020-11-24 9:54 ` Thomas Zimmermann
2020-11-20 10:25 ` [PATCH v2 06/10] drm/fb-helper: Separate shadow-buffer flushing and calling dirty callback Thomas Zimmermann
2020-11-23 19:24 ` Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 07/10] drm/fb-helper: Move damage blit code and its setup into separate routine Thomas Zimmermann
2020-11-22 14:18 ` [drm/fb] 6a1b34c0a3: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work kernel test robot
2020-11-23 8:04 ` Thomas Zimmermann
2020-11-24 1:58 ` Xing Zhengjun
2020-11-24 7:44 ` Thomas Zimmermann
2020-11-24 9:56 ` Thomas Zimmermann
2020-11-23 19:25 ` [PATCH v2 07/10] drm/fb-helper: Move damage blit code and its setup into separate routine Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 08/10] drm/fb-helper: Restore damage area upon errors Thomas Zimmermann
2020-11-23 19:26 ` Sam Ravnborg
2020-11-20 10:25 ` Thomas Zimmermann [this message]
2020-11-23 19:27 ` [PATCH v2 09/10] drm/fb-helper: Copy dma-buf map before flushing shadow fb Sam Ravnborg
2020-11-20 10:25 ` [PATCH v2 10/10] drm/fb-helper: Acquire modeset lock around shadow-buffer flushing Thomas Zimmermann
2020-11-23 19:27 ` Sam Ravnborg
2020-11-23 9:18 ` [PATCH v2 00/10] drm/fb-helper: Various fixes and cleanups Maxime Ripard
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