drm/etnaviv: move cmdbuf de-/allocation into own file

This will get more complex with the following changes, so move it
into its own place.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

drivers/gpu/drm/etnaviv/Makefile

 etnaviv-y := \
 	etnaviv_buffer.o \
 	etnaviv_cmd_parser.o \
+	etnaviv_cmdbuf.o \
 	etnaviv_drv.o \
 	etnaviv_dump.o \
 	etnaviv_gem_prime.o \

drivers/gpu/drm/etnaviv/etnaviv_buffer.c

@@ -15,6 +15,7 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_gem.h"
 #include "etnaviv_mmu.h"

drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c

+/*
+ * Copyright (C) 2017 Etnaviv Project
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "etnaviv_cmdbuf.h"
+#include "etnaviv_gpu.h"
+#include "etnaviv_mmu.h"
+
+struct etnaviv_cmdbuf *etnaviv_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size,
+	size_t nr_bos)
+{
+	struct etnaviv_cmdbuf *cmdbuf;
+	size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
+				 sizeof(*cmdbuf));
+
+	cmdbuf = kzalloc(sz, GFP_KERNEL);
+	if (!cmdbuf)
+		return NULL;
+
+	if (gpu->mmu->version == ETNAVIV_IOMMU_V2)
+		size = ALIGN(size, SZ_4K);
+
+	cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr,
+				     GFP_KERNEL);
+	if (!cmdbuf->vaddr) {
+		kfree(cmdbuf);
+		return NULL;
+	}
+
+	cmdbuf->gpu = gpu;
+	cmdbuf->size = size;
+
+	return cmdbuf;
+}
+
+void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
+{
+	etnaviv_iommu_put_cmdbuf_va(cmdbuf->gpu, cmdbuf);
+	dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr,
+		    cmdbuf->paddr);
+	kfree(cmdbuf);
+}

drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h

+/*
+ * Copyright (C) 2017 Etnaviv Project
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ETNAVIV_CMDBUF_H__
+#define __ETNAVIV_CMDBUF_H__
+
+#include <drm/drm_mm.h>
+#include <linux/types.h>
+
+struct etnaviv_cmdbuf {
+	/* device this cmdbuf is allocated for */
+	struct etnaviv_gpu *gpu;
+	/* user context key, must be unique between all active users */
+	struct etnaviv_file_private *ctx;
+	/* cmdbuf properties */
+	void *vaddr;
+	dma_addr_t paddr;
+	u32 size;
+	u32 user_size;
+	/* vram node used if the cmdbuf is mapped through the MMUv2 */
+	struct drm_mm_node vram_node;
+	/* fence after which this buffer is to be disposed */
+	struct dma_fence *fence;
+	/* target exec state */
+	u32 exec_state;
+	/* per GPU in-flight list */
+	struct list_head node;
+	/* BOs attached to this command buffer */
+	unsigned int nr_bos;
+	struct etnaviv_vram_mapping *bo_map[0];
+};
+
+#endif /* __ETNAVIV_CMDBUF_H__ */

drivers/gpu/drm/etnaviv/etnaviv_drv.c

@@ -18,6 +18,7 @@
 #include <linux/of_platform.h>
 #include <drm/drm_of.h>
 
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_drv.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_gem.h"

drivers/gpu/drm/etnaviv/etnaviv_dump.c

@@ -15,6 +15,7 @@
  */
 
 #include <linux/devcoredump.h>
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_dump.h"
 #include "etnaviv_gem.h"
 #include "etnaviv_gpu.h"

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c

@@ -15,6 +15,7 @@
  */
 
 #include <linux/reservation.h>
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_drv.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_gem.h"
@@ -332,7 +333,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 	bos = drm_malloc_ab(args->nr_bos, sizeof(*bos));
 	relocs = drm_malloc_ab(args->nr_relocs, sizeof(*relocs));
 	stream = drm_malloc_ab(1, args->stream_size);
-	cmdbuf = etnaviv_gpu_cmdbuf_new(gpu, ALIGN(args->stream_size, 8) + 8,
+	cmdbuf = etnaviv_cmdbuf_new(gpu, ALIGN(args->stream_size, 8) + 8,
 					args->nr_bos);
 	if (!bos || !relocs || !stream || !cmdbuf) {
 		ret = -ENOMEM;
@@ -422,7 +423,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 err_submit_cmds:
 	/* if we still own the cmdbuf */
 	if (cmdbuf)
-		etnaviv_gpu_cmdbuf_free(cmdbuf);
+		etnaviv_cmdbuf_free(cmdbuf);
 	if (stream)
 		drm_free_large(stream);
 	if (bos)

drivers/gpu/drm/etnaviv/etnaviv_gpu.c

@@ -18,6 +18,8 @@
 #include <linux/dma-fence.h>
 #include <linux/moduleparam.h>
 #include <linux/of_device.h>
+
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_dump.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_gem.h"
@@ -693,7 +695,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
 	}
 
 	/* Create buffer: */
-	gpu->buffer = etnaviv_gpu_cmdbuf_new(gpu, PAGE_SIZE, 0);
+	gpu->buffer = etnaviv_cmdbuf_new(gpu, PAGE_SIZE, 0);
 	if (!gpu->buffer) {
 		ret = -ENOMEM;
 		dev_err(gpu->dev, "could not create command buffer\n");
@@ -728,7 +730,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
 	return 0;
 
 free_buffer:
-	etnaviv_gpu_cmdbuf_free(gpu->buffer);
+	etnaviv_cmdbuf_free(gpu->buffer);
 	gpu->buffer = NULL;
 destroy_iommu:
 	etnaviv_iommu_destroy(gpu->mmu);
@@ -1151,41 +1153,6 @@ static void event_free(struct etnaviv_gpu *gpu, unsigned int event)
  * Cmdstream submission/retirement:
  */
 
-struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size,
-	size_t nr_bos)
-{
-	struct etnaviv_cmdbuf *cmdbuf;
-	size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
-				 sizeof(*cmdbuf));
-
-	cmdbuf = kzalloc(sz, GFP_KERNEL);
-	if (!cmdbuf)
-		return NULL;
-
-	if (gpu->mmu->version == ETNAVIV_IOMMU_V2)
-		size = ALIGN(size, SZ_4K);
-
-	cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr,
-				     GFP_KERNEL);
-	if (!cmdbuf->vaddr) {
-		kfree(cmdbuf);
-		return NULL;
-	}
-
-	cmdbuf->gpu = gpu;
-	cmdbuf->size = size;
-
-	return cmdbuf;
-}
-
-void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
-{
-	etnaviv_iommu_put_cmdbuf_va(cmdbuf->gpu, cmdbuf);
-	dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr,
-		    cmdbuf->paddr);
-	kfree(cmdbuf);
-}
-
 static void retire_worker(struct work_struct *work)
 {
 	struct etnaviv_gpu *gpu = container_of(work, struct etnaviv_gpu,
@@ -1211,7 +1178,7 @@ static void retire_worker(struct work_struct *work)
 			etnaviv_gem_mapping_unreference(mapping);
 		}
 
-		etnaviv_gpu_cmdbuf_free(cmdbuf);
+		etnaviv_cmdbuf_free(cmdbuf);
 		/*
 		 * We need to balance the runtime PM count caused by
 		 * each submission.  Upon submission, we increment
@@ -1627,7 +1594,7 @@ static void etnaviv_gpu_unbind(struct device *dev, struct device *master,
 #endif
 
 	if (gpu->buffer) {
-		etnaviv_gpu_cmdbuf_free(gpu->buffer);
+		etnaviv_cmdbuf_free(gpu->buffer);
 		gpu->buffer = NULL;
 	}
 

drivers/gpu/drm/etnaviv/etnaviv_gpu.h

@@ -150,29 +150,6 @@ struct etnaviv_gpu {
 	struct work_struct recover_work;
 };
 
-struct etnaviv_cmdbuf {
-	/* device this cmdbuf is allocated for */
-	struct etnaviv_gpu *gpu;
-	/* user context key, must be unique between all active users */
-	struct etnaviv_file_private *ctx;
-	/* cmdbuf properties */
-	void *vaddr;
-	dma_addr_t paddr;
-	u32 size;
-	u32 user_size;
-	/* vram node used if the cmdbuf is mapped through the MMUv2 */
-	struct drm_mm_node vram_node;
-	/* fence after which this buffer is to be disposed */
-	struct dma_fence *fence;
-	/* target exec state */
-	u32 exec_state;
-	/* per GPU in-flight list */
-	struct list_head node;
-	/* BOs attached to this command buffer */
-	unsigned int nr_bos;
-	struct etnaviv_vram_mapping *bo_map[0];
-};
-
 static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
 {
 	etnaviv_writel(data, gpu->mmio + reg);
@@ -211,9 +188,9 @@ int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
 	struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout);
 int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
 	struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf);
-struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu,
+struct etnaviv_cmdbuf *etnaviv_cmdbuf_new(struct etnaviv_gpu *gpu,
 					      u32 size, size_t nr_bos);
-void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
+void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
 int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
 void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
 int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);

drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c

@@ -21,6 +21,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/bitops.h>
 
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_gpu.h"
 #include "etnaviv_mmu.h"
 #include "etnaviv_iommu.h"

drivers/gpu/drm/etnaviv/etnaviv_mmu.c

@@ -15,6 +15,7 @@
  */
 
 #include "common.xml.h"
+#include "etnaviv_cmdbuf.h"
 #include "etnaviv_drv.h"
 #include "etnaviv_gem.h"
 #include "etnaviv_gpu.h"