diff options
| author | Maxime Ripard <mripard@kernel.org> | 2024-07-30 09:09:23 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-07-30 09:09:23 +0200 |
| commit | a1ff5a7d78a036d6c2178ee5acd6ba4946243800 (patch) | |
| tree | 6652a7fba9fc417eaf327b7578447a4583ebd5da /drivers/gpu/drm/drm_fb_helper.c | |
| parent | b5fbf924f125ba3638cfdc21c0515eb7e76264ca (diff) | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
| download | lwn-a1ff5a7d78a036d6c2178ee5acd6ba4946243800.tar.gz lwn-a1ff5a7d78a036d6c2178ee5acd6ba4946243800.zip | |
Merge drm/drm-fixes into drm-misc-fixes
Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 618b04523033..56ac37ea2f27 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -85,12 +85,8 @@ static DEFINE_MUTEX(kernel_fb_helper_lock); * The fb helper functions are useful to provide an fbdev on top of a drm kernel * mode setting driver. They can be used mostly independently from the crtc * helper functions used by many drivers to implement the kernel mode setting - * interfaces. - * - * Drivers that support a dumb buffer with a virtual address and mmap support, - * should try out the generic fbdev emulation using drm_fbdev_generic_setup(). - * It will automatically set up deferred I/O if the driver requires a shadow - * buffer. + * interfaces. Drivers that use one of the shared memory managers, TTM, SHMEM, + * DMA, should instead use the corresponding fbdev emulation. * * Existing fbdev implementations should restore the fbdev console by using * drm_fb_helper_lastclose() as their &drm_driver.lastclose callback. @@ -126,9 +122,6 @@ static DEFINE_MUTEX(kernel_fb_helper_lock); * atomic context. If drm_fb_helper_deferred_io() is used as the deferred_io * callback it will also schedule dirty_work with the damage collected from the * mmap page writes. - * - * Deferred I/O is not compatible with SHMEM. Such drivers should request an - * fbdev shadow buffer and call drm_fbdev_generic_setup() instead. */ static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) |