提交 93052132 编写于 作者: D Dave Airlie 提交者: Alex Deucher

amdgpu/dc: convert dc_transfer to use a kref.

Rolling your own atomic ref counts is frowned upon.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
上级 5d15ae23
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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......@@ -161,17 +161,18 @@ struct dc_gamma *dc_create_gamma()
void dc_transfer_func_retain(struct dc_transfer_func *tf)
{
ASSERT(atomic_read(&tf->ref_count) > 0);
atomic_inc(&tf->ref_count);
kref_get(&tf->refcount);
}
void dc_transfer_func_release(struct dc_transfer_func *tf)
static void dc_transfer_func_free(struct kref *kref)
{
ASSERT(atomic_read(&tf->ref_count) > 0);
atomic_dec(&tf->ref_count);
struct dc_transfer_func *tf = container_of(kref, struct dc_transfer_func, refcount);
kfree(tf);
}
if (atomic_read(&tf->ref_count) == 0)
kfree(tf);
void dc_transfer_func_release(struct dc_transfer_func *tf)
{
kref_put(&tf->refcount, dc_transfer_func_free);
}
struct dc_transfer_func *dc_create_transfer_func()
......@@ -181,7 +182,7 @@ struct dc_transfer_func *dc_create_transfer_func()
if (tf == NULL)
goto alloc_fail;
atomic_inc(&tf->ref_count);
kref_init(&tf->refcount);
return tf;
......
......@@ -330,11 +330,11 @@ enum dc_transfer_func_predefined {
};
struct dc_transfer_func {
struct kref refcount;
struct dc_transfer_func_distributed_points tf_pts;
enum dc_transfer_func_type type;
enum dc_transfer_func_predefined tf;
struct dc_context *ctx;
atomic_t ref_count;
};
/*
......
......@@ -32,6 +32,8 @@
#include <linux/types.h>
#include <drm/drmP.h>
#include <linux/kref.h>
#include "cgs_linux.h"
#if defined(__BIG_ENDIAN) && !defined(BIGENDIAN_CPU)
......
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