[PATCH v4 07/13] drm/gm12u320: Use drm_gem_shmem_vmap_local() in damage handling
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2021-01-08 09:45:29
Also in:
dri-devel, linux-media
Subsystem:
drm driver for grain media gm12u320 projectors, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Hans de Goede, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Damage handling in gm12u320 requires a short-term mapping of the source BO. Use drm_gem_shmem_vmap_local(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/tiny/gm12u320.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 33f65f4626e5..b0c6e350f2b3 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c@@ -265,11 +265,16 @@ static void gm12u320_copy_fb_to_blocks(struct gm12u320_device *gm12u320) y1 = gm12u320->fb_update.rect.y1; y2 = gm12u320->fb_update.rect.y2; - ret = drm_gem_shmem_vmap(fb->obj[0], &map); + ret = dma_resv_lock(fb->obj[0]->resv, NULL); if (ret) { - GM12U320_ERR("failed to vmap fb: %d\n", ret); + GM12U320_ERR("failed to reserve fb: %d\n", ret); goto put_fb; } + ret = drm_gem_shmem_vmap_local(fb->obj[0], &map); + if (ret) { + GM12U320_ERR("failed to vmap fb: %d\n", ret); + goto unlock_resv; + } vaddr = map.vaddr; /* TODO: Use mapping abstraction properly */ if (fb->obj[0]->import_attach) {
@@ -321,8 +326,11 @@ static void gm12u320_copy_fb_to_blocks(struct gm12u320_device *gm12u320) if (ret) GM12U320_ERR("dma_buf_end_cpu_access err: %d\n", ret); } + +unlock_resv: + dma_resv_unlock(fb->obj[0]->resv); vunmap: - drm_gem_shmem_vunmap(fb->obj[0], &map); + drm_gem_shmem_vunmap_local(fb->obj[0], &map); put_fb: drm_framebuffer_put(fb); gm12u320->fb_update.fb = NULL;
--
2.29.2
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