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<div class="moz-cite-prefix">Am 14.09.20 um 17:05 schrieb Thomas
Zimmermann:<br>
</div>
<blockquote type="cite"
cite="mid:c445493b-9914-63f2-1cf2-c3c1de14e3e5@suse.de">
<pre class="moz-quote-pre" wrap="">Hi
Am 13.08.20 um 12:22 schrieb Christian König:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">Am 13.08.20 um 10:36 schrieb Thomas Zimmermann:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann <a class="moz-txt-link-rfc2396E" href="mailto:tzimmermann@suse.de"><tzimmermann@suse.de></a>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ------
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 ++++++++++++
2 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 81a79760ca61..51525b8774c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1468,19 +1468,13 @@ static struct drm_driver kms_driver = {
.lastclose = amdgpu_driver_lastclose_kms,
.irq_handler = amdgpu_irq_handler,
.ioctls = amdgpu_ioctls_kms,
- .gem_free_object_unlocked = amdgpu_gem_object_free,
- .gem_open_object = amdgpu_gem_object_open,
- .gem_close_object = amdgpu_gem_object_close,
.dumb_create = amdgpu_mode_dumb_create,
.dumb_map_offset = amdgpu_mode_dumb_mmap,
.fops = &amdgpu_driver_kms_fops,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_export = amdgpu_gem_prime_export,
.gem_prime_import = amdgpu_gem_prime_import,
- .gem_prime_vmap = amdgpu_gem_prime_vmap,
- .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
.gem_prime_mmap = amdgpu_gem_prime_mmap,
.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 43f4966331dd..ca2b79f94e99 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -36,6 +36,7 @@
#include <drm/amdgpu_drm.h>
#include <drm/drm_cache.h>
#include "amdgpu.h"
+#include "amdgpu_dma_buf.h"
#include "amdgpu_trace.h"
#include "amdgpu_amdkfd.h"
@@ -510,6 +511,15 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
#endif
}
+static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
+ .free = amdgpu_gem_object_free,
+ .open = amdgpu_gem_object_open,
+ .close = amdgpu_gem_object_close,
+ .export = amdgpu_gem_prime_export,
+ .vmap = amdgpu_gem_prime_vmap,
+ .vunmap = amdgpu_gem_prime_vunmap,
+};
+
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
Wrong file, this belongs into amdgpu_gem.c
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap=""> static int amdgpu_bo_do_create(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo **bo_ptr)
@@ -552,6 +562,8 @@ static int amdgpu_bo_do_create(struct
amdgpu_device *adev,
bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
+
+ bo->tbo.base.funcs = &amdgpu_gem_object_funcs;
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
And this should probably go into amdgpu_gem_object_create().
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
I'm trying to understand what amdgpu does. What about all the places
where amdgpu calls amdgpu_bo_create() internally? Wouldn't these miss
the free callback for the GEM object?</pre>
</blockquote>
<br>
Those shouldn't have a GEM object in the first place.<br>
<br>
Or otherwise we would have a reference counting issue.<br>
<br>
Regards,<br>
Christian.<br>
<br>
<blockquote type="cite"
cite="mid:c445493b-9914-63f2-1cf2-c3c1de14e3e5@suse.de">
<pre class="moz-quote-pre" wrap="">
Best regards
Thomas
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">
Apart from that looks like a good idea to me.
Christian.
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap=""> drm_gem_private_object_init(adev->ddev, &bo->tbo.base, size);
INIT_LIST_HEAD(&bo->shadow_list);
bo->vm_bo = NULL;
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
</pre>
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</blockquote>
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