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From 2392eec65c493c3f49a1f23f4af713e3c68cf6f5 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 29 Sep 2015 10:35:45 -0400
Subject: [PATCH 0567/1050] drm/amdgpu/cgs: remove import_gpu_mem
It was added for completeness, but we don't have any users
for it yet. Daniel noted that it may be racy. Remove it.
Change-Id: I5f5546f8911a4f294008a62dc86a73f3face38d1
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 39 ---------------------------------
drivers/gpu/drm/amd/include/cgs_linux.h | 17 --------------
2 files changed, 56 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 1c3fc99..8e99514 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -208,44 +208,6 @@ static int amdgpu_cgs_alloc_gpu_mem(void *cgs_device,
return ret;
}
-static int amdgpu_cgs_import_gpu_mem(void *cgs_device, int dmabuf_fd,
- cgs_handle_t *handle)
-{
- CGS_FUNC_ADEV;
- int r;
- uint32_t dma_handle;
- struct drm_gem_object *obj;
- struct amdgpu_bo *bo;
- struct drm_device *dev = adev->ddev;
- struct drm_file *file_priv = NULL, *priv;
-
- mutex_lock(&dev->struct_mutex);
- list_for_each_entry(priv, &dev->filelist, lhead) {
- rcu_read_lock();
- if (priv->pid == get_pid(task_pid(current)))
- file_priv = priv;
- rcu_read_unlock();
- if (file_priv)
- break;
- }
- mutex_unlock(&dev->struct_mutex);
- r = dev->driver->prime_fd_to_handle(dev,
- file_priv, dmabuf_fd,
- &dma_handle);
- spin_lock(&file_priv->table_lock);
-
- /* Check if we currently have a reference on the object */
- obj = idr_find(&file_priv->object_idr, dma_handle);
- if (obj == NULL) {
- spin_unlock(&file_priv->table_lock);
- return -EINVAL;
- }
- spin_unlock(&file_priv->table_lock);
- bo = gem_to_amdgpu_bo(obj);
- *handle = (cgs_handle_t)bo;
- return 0;
-}
-
static int amdgpu_cgs_free_gpu_mem(void *cgs_device, cgs_handle_t handle)
{
struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
@@ -810,7 +772,6 @@ static const struct cgs_ops amdgpu_cgs_ops = {
};
static const struct cgs_os_ops amdgpu_cgs_os_ops = {
- amdgpu_cgs_import_gpu_mem,
amdgpu_cgs_add_irq_source,
amdgpu_cgs_irq_get,
amdgpu_cgs_irq_put
diff --git a/drivers/gpu/drm/amd/include/cgs_linux.h b/drivers/gpu/drm/amd/include/cgs_linux.h
index 488642f..3b47ae3 100644
--- a/drivers/gpu/drm/amd/include/cgs_linux.h
+++ b/drivers/gpu/drm/amd/include/cgs_linux.h
@@ -27,19 +27,6 @@
#include "cgs_common.h"
/**
- * cgs_import_gpu_mem() - Import dmabuf handle
- * @cgs_device: opaque device handle
- * @dmabuf_fd: DMABuf file descriptor
- * @handle: memory handle (output)
- *
- * Must be called in the process context that dmabuf_fd belongs to.
- *
- * Return: 0 on success, -errno otherwise
- */
-typedef int (*cgs_import_gpu_mem_t)(void *cgs_device, int dmabuf_fd,
- cgs_handle_t *handle);
-
-/**
* cgs_irq_source_set_func() - Callback for enabling/disabling interrupt sources
* @private_data: private data provided to cgs_add_irq_source
* @src_id: interrupt source ID
@@ -114,16 +101,12 @@ typedef int (*cgs_irq_get_t)(void *cgs_device, unsigned src_id, unsigned type);
typedef int (*cgs_irq_put_t)(void *cgs_device, unsigned src_id, unsigned type);
struct cgs_os_ops {
- cgs_import_gpu_mem_t import_gpu_mem;
-
/* IRQ handling */
cgs_add_irq_source_t add_irq_source;
cgs_irq_get_t irq_get;
cgs_irq_put_t irq_put;
};
-#define cgs_import_gpu_mem(dev,dmabuf_fd,handle) \
- CGS_OS_CALL(import_gpu_mem,dev,dmabuf_fd,handle)
#define cgs_add_irq_source(dev,src_id,num_types,set,handler,private_data) \
CGS_OS_CALL(add_irq_source,dev,src_id,num_types,set,handler, \
private_data)
--
1.9.1
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