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Two fixups

Browse Source 
- Fix missing unlock issue in exynos_drm_g2d.c
 - Fix a build warning in exynos_drm_dma.c
 
 One cleanup
 - Replace atomic_t with refcount_t in exynos_drm_g2d.c
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Merge tag 'exynos-drm-next-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Two fixups
- Fix missing unlock issue in exynos_drm_g2d.c
- Fix a build warning in exynos_drm_dma.c

One cleanup
- Replace atomic_t with refcount_t in exynos_drm_g2d.c

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210821172825.54720-1-inki.dae@samsung.com
This commit is contained in:
Dave Airlie 2021-08-26 13:23:57 +10:00
commit 7d8eb20271
2 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/exynos/exynos_drm_dma.c
View File

@ -115,6 +115,8 @@ int exynos_drm_register_dma(struct drm_device *drm, struct device *dev,
EXYNOS_DEV_ADDR_START, EXYNOS_DEV_ADDR_SIZE);
else if (IS_ENABLED(CONFIG_IOMMU_DMA))
mapping = iommu_get_domain_for_dev(priv->dma_dev);
else
mapping = ERR_PTR(-ENODEV);
if (IS_ERR(mapping))
return PTR_ERR(mapping);

14
drivers/gpu/drm/exynos/exynos_drm_g2d.c
View File

@ -4,6 +4,7 @@
* Authors: Joonyoung Shim <jy0922.shim@samsung.com>
*/
#include <linux/refcount.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/delay.h>
@ -208,7 +209,7 @@ struct g2d_cmdlist_userptr {
struct page **pages;
unsigned int npages;
struct sg_table *sgt;
atomic_t refcount;
refcount_t refcount;
bool in_pool;
bool out_of_list;
};
@ -386,9 +387,9 @@ static void g2d_userptr_put_dma_addr(struct g2d_data *g2d,
if (force)
goto out;
atomic_dec(&g2d_userptr->refcount);
refcount_dec(&g2d_userptr->refcount);
if (atomic_read(&g2d_userptr->refcount) > 0)
if (refcount_read(&g2d_userptr->refcount) > 0)
return;
if (g2d_userptr->in_pool)
@ -436,7 +437,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d,
* and different size.
*/
if (g2d_userptr->size == size) {
atomic_inc(&g2d_userptr->refcount);
refcount_inc(&g2d_userptr->refcount);
*obj = g2d_userptr;
return &g2d_userptr->dma_addr;
@ -461,7 +462,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d,
if (!g2d_userptr)
return ERR_PTR(-ENOMEM);
atomic_set(&g2d_userptr->refcount, 1);
refcount_set(&g2d_userptr->refcount, 1);
g2d_userptr->size = size;
start = userptr & PAGE_MASK;
@ -897,13 +898,14 @@ static void g2d_runqueue_worker(struct work_struct *work)
ret = pm_runtime_resume_and_get(g2d->dev);
if (ret < 0) {
dev_err(g2d->dev, "failed to enable G2D device.\n");
return;
goto out;
}
g2d_dma_start(g2d, g2d->runqueue_node);
}
}
out:
mutex_unlock(&g2d->runqueue_mutex);
}