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authorThomas Zimmermann <tzimmermann@suse.de>2021-07-30 21:35:11 +0300
committerThomas Zimmermann <tzimmermann@suse.de>2021-08-02 17:41:20 +0300
commit50fff206c5e3a04fcb239ad58d89cad166711b7f (patch)
treea64842833a7dfe93b460c6186a93d40ece821edd /drivers/gpu/drm/vkms
parent0029d3182969d8dc67e4fedb00d6cf50eee74670 (diff)
downloadlinux-50fff206c5e3a04fcb239ad58d89cad166711b7f.tar.xz
drm/vkms: Map output framebuffer BOs with drm_gem_fb_vmap()
Abstract the framebuffer details by mappings its BOs with a call to drm_gem_fb_vmap(). Unmap with drm_gem_fb_vunamp(). Before, the output address with stored as raw pointer in the priv field of struct drm_writeback_job. Introduce the new type struct vkms_writeback_job, which holds the output mappings addresses while the writeback job is active. The patchset also cleans up some internal casting an setup of the output addresses. No functional changes. v3: * free instances of struct vkms_writeback_job on cleanup or errors Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210730183511.20080-6-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/vkms')
-rw-r--r--drivers/gpu/drm/vkms/vkms_composer.c2
-rw-r--r--drivers/gpu/drm/vkms/vkms_drv.h6
-rw-r--r--drivers/gpu/drm/vkms/vkms_writeback.c28
3 files changed, 22 insertions, 14 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index ead8fff81f30..49f109c3a2b3 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -257,7 +257,7 @@ void vkms_composer_worker(struct work_struct *work)
return;
if (wb_pending)
- vaddr_out = crtc_state->active_writeback;
+ vaddr_out = crtc_state->active_writeback->map[0].vaddr;
ret = compose_active_planes(&vaddr_out, primary_composer,
crtc_state);
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 8c731b6dcba7..8bc9e3f52e1f 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -20,6 +20,10 @@
#define XRES_MAX 8192
#define YRES_MAX 8192
+struct vkms_writeback_job {
+ struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
+};
+
struct vkms_composer {
struct drm_framebuffer fb;
struct drm_rect src, dst;
@@ -57,7 +61,7 @@ struct vkms_crtc_state {
int num_active_planes;
/* stack of active planes for crc computation, should be in z order */
struct vkms_plane_state **active_planes;
- void *active_writeback;
+ struct vkms_writeback_job *active_writeback;
/* below four are protected by vkms_output.composer_lock */
bool crc_pending;
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index 0935686475a0..425b6c6b8cad 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -65,41 +65,45 @@ static int vkms_wb_connector_get_modes(struct drm_connector *connector)
static int vkms_wb_prepare_job(struct drm_writeback_connector *wb_connector,
struct drm_writeback_job *job)
{
- struct drm_gem_object *gem_obj;
- struct dma_buf_map map;
+ struct vkms_writeback_job *vkmsjob;
int ret;
if (!job->fb)
return 0;
- gem_obj = drm_gem_fb_get_obj(job->fb, 0);
- ret = drm_gem_shmem_vmap(gem_obj, &map);
+ vkmsjob = kzalloc(sizeof(*vkmsjob), GFP_KERNEL);
+ if (!vkmsjob)
+ return -ENOMEM;
+
+ ret = drm_gem_fb_vmap(job->fb, vkmsjob->map);
if (ret) {
DRM_ERROR("vmap failed: %d\n", ret);
- return ret;
+ goto err_kfree;
}
- job->priv = map.vaddr;
+ job->priv = vkmsjob;
return 0;
+
+err_kfree:
+ kfree(vkmsjob);
+ return ret;
}
static void vkms_wb_cleanup_job(struct drm_writeback_connector *connector,
struct drm_writeback_job *job)
{
- struct drm_gem_object *gem_obj;
+ struct vkms_writeback_job *vkmsjob = job->priv;
struct vkms_device *vkmsdev;
- struct dma_buf_map map;
if (!job->fb)
return;
- gem_obj = drm_gem_fb_get_obj(job->fb, 0);
- dma_buf_map_set_vaddr(&map, job->priv);
- drm_gem_shmem_vunmap(gem_obj, &map);
+ drm_gem_fb_vunmap(job->fb, vkmsjob->map);
- vkmsdev = drm_device_to_vkms_device(gem_obj->dev);
+ vkmsdev = drm_device_to_vkms_device(job->fb->dev);
vkms_set_composer(&vkmsdev->output, false);
+ kfree(vkmsjob);
}
static void vkms_wb_atomic_commit(struct drm_connector *conn,