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102 lines
2.9 KiB
Diff
102 lines
2.9 KiB
Diff
From b143de6aef8be007256082e0f89606b7f5e3c757 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime.ripard@free-electrons.com>
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Date: Mon, 7 Dec 2015 09:47:34 +0100
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Subject: [PATCH 006/146] drm/sun4i: Add GEM allocator
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Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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---
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drivers/gpu/drm/sun4i/sun4i_drv.c | 27 +++++++++++++++++++++++++++
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include/uapi/drm/sun4i_drm.h | 29 +++++++++++++++++++++++++++++
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2 files changed, 56 insertions(+)
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create mode 100644 include/uapi/drm/sun4i_drm.h
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diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
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index 8b0cd08034e0..9f5de14fb2fe 100644
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--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
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+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
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@@ -22,6 +22,8 @@
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_of.h>
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+#include <uapi/drm/sun4i_drm.h>
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+
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#include "sun4i_drv.h"
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#include "sun4i_frontend.h"
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#include "sun4i_framebuffer.h"
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@@ -30,6 +32,27 @@
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DEFINE_DRM_GEM_CMA_FOPS(sun4i_drv_fops);
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+static int sun4i_gem_create_ioctl(struct drm_device *drm, void *data,
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+ struct drm_file *file_priv)
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+{
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+ struct drm_sun4i_gem_create *args = data;
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+ struct drm_gem_cma_object *cma_obj;
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+ size_t size;
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+
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+ /* The Mali requires a 64 bytes alignment */
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+ size = ALIGN(args->size, 64);
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+
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+ cma_obj = drm_gem_cma_create_with_handle(file_priv, drm, size,
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+ &args->handle);
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+
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+ return PTR_ERR_OR_ZERO(cma_obj);
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+}
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+
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+static const struct drm_ioctl_desc sun4i_drv_ioctls[] = {
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+ DRM_IOCTL_DEF_DRV(SUN4I_GEM_CREATE, sun4i_gem_create_ioctl,
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+ DRM_UNLOCKED | DRM_AUTH),
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+};
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+
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static struct drm_driver sun4i_drv_driver = {
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.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
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@@ -42,6 +65,10 @@ static struct drm_driver sun4i_drv_driver = {
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.major = 1,
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.minor = 0,
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+ /* Custom ioctls */
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+ .ioctls = sun4i_drv_ioctls,
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+ .num_ioctls = ARRAY_SIZE(sun4i_drv_ioctls),
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+
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/* GEM Operations */
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.dumb_create = drm_gem_cma_dumb_create,
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.gem_free_object_unlocked = drm_gem_cma_free_object,
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diff --git a/include/uapi/drm/sun4i_drm.h b/include/uapi/drm/sun4i_drm.h
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new file mode 100644
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index 000000000000..67b9dd4ee594
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--- /dev/null
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+++ b/include/uapi/drm/sun4i_drm.h
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@@ -0,0 +1,29 @@
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+/*
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+ * Copyright (C) 2015 Free Electrons
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+ * Copyright (C) 2015 NextThing Co
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+ *
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+ * Maxime Ripard <maxime.ripard@free-electrons.com>
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of
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+ * the License, or (at your option) any later version.
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+ */
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+
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+#ifndef _UAPI_SUN4I_DRM_H_
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+#define _UAPI_SUN4I_DRM_H_
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+
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+#include <drm/drm.h>
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+
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+struct drm_sun4i_gem_create {
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+ __u64 size;
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+ __u32 flags;
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+ __u32 handle;
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+};
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+
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+#define DRM_SUN4I_GEM_CREATE 0x00
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+
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+#define DRM_IOCTL_SUN4I_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_SUN4I_GEM_CREATE, \
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+ struct drm_sun4i_gem_create)
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+
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+#endif
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--
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2.17.1
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