build/patch/kernel/archive/sunxi-6.5/patches.armbian/drv-gpu-drm-sun4i-Add-GEM-allocator.patch

104 lines
3.0 KiB
Diff

From 8f70b58d5ff984b505958c19eeefb7a0b5b9b50f Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 7 Dec 2015 09:47:34 +0100
Subject: [PATCH 009/153] drv:gpu:drm:sun4i: Add GEM allocator
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: The-going <48602507+The-going@users.noreply.github.com>
---
drivers/gpu/drm/sun4i/sun4i_drv.c | 27 +++++++++++++++++++++++++++
include/uapi/drm/sun4i_drm.h | 29 +++++++++++++++++++++++++++++
2 files changed, 56 insertions(+)
create mode 100644 include/uapi/drm/sun4i_drm.h
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index cc94efbbf..af861d2db 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -24,6 +24,8 @@
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
+#include <uapi/drm/sun4i_drm.h>
+
#include "sun4i_drv.h"
#include "sun4i_frontend.h"
#include "sun4i_framebuffer.h"
@@ -42,6 +44,27 @@ static int drm_sun4i_gem_dumb_create(struct drm_file *file_priv,
DEFINE_DRM_GEM_DMA_FOPS(sun4i_drv_fops);
+static int sun4i_gem_create_ioctl(struct drm_device *drm, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_sun4i_gem_create *args = data;
+ struct drm_gem_dma_object *dma_obj;
+ size_t size;
+
+ /* The Mali requires a 64 bytes alignment */
+ size = ALIGN(args->size, 64);
+
+ dma_obj = drm_gem_dma_create_with_handle(file_priv, drm, size,
+ &args->handle);
+
+ return PTR_ERR_OR_ZERO(dma_obj);
+}
+
+static const struct drm_ioctl_desc sun4i_drv_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(SUN4I_GEM_CREATE, sun4i_gem_create_ioctl,
+ DRM_UNLOCKED | DRM_AUTH),
+};
+
static const struct drm_driver sun4i_drv_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
@@ -53,6 +76,10 @@ static const struct drm_driver sun4i_drv_driver = {
.major = 1,
.minor = 0,
+ /* Custom ioctls */
+ .ioctls = sun4i_drv_ioctls,
+ .num_ioctls = ARRAY_SIZE(sun4i_drv_ioctls),
+
/* GEM Operations */
DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(drm_sun4i_gem_dumb_create),
};
diff --git a/include/uapi/drm/sun4i_drm.h b/include/uapi/drm/sun4i_drm.h
new file mode 100644
index 000000000..67b9dd4ee
--- /dev/null
+++ b/include/uapi/drm/sun4i_drm.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2015 Free Electrons
+ * Copyright (C) 2015 NextThing Co
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef _UAPI_SUN4I_DRM_H_
+#define _UAPI_SUN4I_DRM_H_
+
+#include <drm/drm.h>
+
+struct drm_sun4i_gem_create {
+ __u64 size;
+ __u32 flags;
+ __u32 handle;
+};
+
+#define DRM_SUN4I_GEM_CREATE 0x00
+
+#define DRM_IOCTL_SUN4I_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_SUN4I_GEM_CREATE, \
+ struct drm_sun4i_gem_create)
+
+#endif
--
2.35.3