diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-11-16 12:59:20 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-11-28 18:12:28 +0300 |
| commit | c350a08ac7ec933f1dc8a143ebab60164ed4d90b (patch) | |
| tree | 4de966e797157bbaf480a8738ddf3b843eee92fa /drivers/gpu/drm/ast/ast_drv.h | |
| parent | 26b9a880d24cf94342ae2b259e2a220338559789 (diff) | |
| download | linux-c350a08ac7ec933f1dc8a143ebab60164ed4d90b.tar.xz | |
drm/ast: Turn ioregs_lock to modeset_lock
The lock for the I/O registers is only relevant during mode-setting
operations. It protects the registers from concurrent access from
reading EDID information.
Reduce lock coverage to mode setting, rename the lock and move it
entirely into the mode-setting code. No functional changes, as the
I/O lock was never used for anything else than mode setting.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-2-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/ast/ast_drv.h')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_drv.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 772f3b049c16..2ec29480939d 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -192,7 +192,6 @@ to_ast_bmc_connector(struct drm_connector *connector) struct ast_device { struct drm_device base; - struct mutex ioregs_lock; /* Protects access to I/O registers in ioregs */ void __iomem *regs; void __iomem *ioregs; void __iomem *dp501_fw_buf; @@ -207,6 +206,8 @@ struct ast_device { unsigned long vram_size; unsigned long vram_fb_available; + struct mutex modeset_lock; /* Protects access to modeset I/O registers in ioregs */ + struct ast_plane primary_plane; struct ast_plane cursor_plane; struct drm_crtc crtc; |