Move final cleanups from cirrus_pci_remove() to the new callback. Add drm_atomic_helper_shutdown() call to cirrus_pci_remove().
Use drm_dev_{enter,exit,unplug} to avoid touching hardware after device removal.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/cirrus/cirrus.c | 43 ++++++++++++++++++++++++++++----- 1 file changed, 37 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c index a91fb0d7282c..d2ff63ce8eaf 100644 --- a/drivers/gpu/drm/cirrus/cirrus.c +++ b/drivers/gpu/drm/cirrus/cirrus.c @@ -151,9 +151,13 @@ static int cirrus_pitch(struct drm_framebuffer *fb)
static void cirrus_set_start_address(struct cirrus_device *cirrus, u32 offset) { + int idx; u32 addr; u8 tmp;
+ if (!drm_dev_enter(&cirrus->dev, &idx)) + return; + addr = offset >> 2; wreg_crt(cirrus, 0x0c, (u8)((addr >> 8) & 0xff)); wreg_crt(cirrus, 0x0d, (u8)(addr & 0xff)); @@ -168,6 +172,8 @@ static void cirrus_set_start_address(struct cirrus_device *cirrus, u32 offset) tmp &= 0x7f; tmp |= (addr >> 12) & 0x80; wreg_crt(cirrus, 0x1d, tmp); + + drm_dev_exit(idx); }
static int cirrus_mode_set(struct cirrus_device *cirrus, @@ -176,9 +182,12 @@ static int cirrus_mode_set(struct cirrus_device *cirrus, { int hsyncstart, hsyncend, htotal, hdispend; int vtotal, vdispend; - int tmp; + int tmp, idx; int sr07 = 0, hdr = 0;
+ if (!drm_dev_enter(&cirrus->dev, &idx)) + return -1; + htotal = mode->htotal / 8; hsyncend = mode->hsync_end / 8; hsyncstart = mode->hsync_start / 8; @@ -264,6 +273,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus, hdr = 0xc5; break; default: + drm_dev_exit(idx); return -1; }
@@ -292,6 +302,8 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
/* Unblank (needed on S3 resume, vgabios doesn't do it then) */ outb(0x20, 0x3c0); + + drm_dev_exit(idx); return 0; }
@@ -300,10 +312,16 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, { struct cirrus_device *cirrus = fb->dev->dev_private; void *vmap; + int idx, ret;
+ ret = -ENODEV; + if (!drm_dev_enter(&cirrus->dev, &idx)) + goto out; + + ret = -ENOMEM; vmap = drm_gem_shmem_vmap(fb->obj[0]); if (!vmap) - return -ENOMEM; + goto out_dev_exit;
if (cirrus->cpp == fb->format->cpp[0]) drm_fb_memcpy_dstclip(cirrus->vram, @@ -323,7 +341,12 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, WARN_ON_ONCE("cpp mismatch");
drm_gem_shmem_vunmap(fb->obj[0], vmap); - return 0; + ret = 0; + +out_dev_exit: + drm_dev_exit(idx); +out: + return ret; }
static int cirrus_fb_blit_fullscreen(struct drm_framebuffer *fb) @@ -502,6 +525,14 @@ static void cirrus_mode_config_init(struct cirrus_device *cirrus)
/* ------------------------------------------------------------------ */
+static void cirrus_release(struct drm_device *dev) +{ + struct cirrus_device *cirrus = dev->dev_private; + + drm_mode_config_cleanup(dev); + kfree(cirrus); +} + DEFINE_DRM_GEM_FOPS(cirrus_fops);
static struct drm_driver cirrus_driver = { @@ -515,6 +546,7 @@ static struct drm_driver cirrus_driver = {
.fops = &cirrus_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .release = cirrus_release, };
static int cirrus_pci_probe(struct pci_dev *pdev, @@ -598,12 +630,11 @@ static void cirrus_pci_remove(struct pci_dev *pdev) struct drm_device *dev = pci_get_drvdata(pdev); struct cirrus_device *cirrus = dev->dev_private;
- drm_dev_unregister(dev); - drm_mode_config_cleanup(dev); + drm_dev_unplug(dev); + drm_atomic_helper_shutdown(dev); iounmap(cirrus->mmio); iounmap(cirrus->vram); drm_dev_put(dev); - kfree(cirrus); pci_release_regions(pdev); }