ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/mga/mga_ioc32.c b/marvell/linux/drivers/gpu/drm/mga/mga_ioc32.c
new file mode 100644
index 0000000..6ccd270
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/mga/mga_ioc32.c
@@ -0,0 +1,196 @@
+/**
+ * \file mga_ioc32.c
+ *
+ * 32-bit ioctl compatibility routines for the MGA DRM.
+ *
+ * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich
+ *
+ *
+ * Copyright (C) Paul Mackerras 2005
+ * Copyright (C) Egbert Eich 2003,2004
+ * Copyright (C) Dave Airlie 2005
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <linux/compat.h>
+
+#include "mga_drv.h"
+
+typedef struct drm32_mga_init {
+ int func;
+ u32 sarea_priv_offset;
+ int chipset;
+ int sgram;
+ unsigned int maccess;
+ unsigned int fb_cpp;
+ unsigned int front_offset, front_pitch;
+ unsigned int back_offset, back_pitch;
+ unsigned int depth_cpp;
+ unsigned int depth_offset, depth_pitch;
+ unsigned int texture_offset[MGA_NR_TEX_HEAPS];
+ unsigned int texture_size[MGA_NR_TEX_HEAPS];
+ u32 fb_offset;
+ u32 mmio_offset;
+ u32 status_offset;
+ u32 warp_offset;
+ u32 primary_offset;
+ u32 buffers_offset;
+} drm_mga_init32_t;
+
+static int compat_mga_init(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_mga_init32_t init32;
+ drm_mga_init_t init;
+
+ if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
+ return -EFAULT;
+
+ init.func = init32.func;
+ init.sarea_priv_offset = init32.sarea_priv_offset;
+ memcpy(&init.chipset, &init32.chipset,
+ offsetof(drm_mga_init_t, fb_offset) -
+ offsetof(drm_mga_init_t, chipset));
+ init.fb_offset = init32.fb_offset;
+ init.mmio_offset = init32.mmio_offset;
+ init.status_offset = init32.status_offset;
+ init.warp_offset = init32.warp_offset;
+ init.primary_offset = init32.primary_offset;
+ init.buffers_offset = init32.buffers_offset;
+
+ return drm_ioctl_kernel(file, mga_dma_init, &init,
+ DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
+}
+
+typedef struct drm_mga_getparam32 {
+ int param;
+ u32 value;
+} drm_mga_getparam32_t;
+
+static int compat_mga_getparam(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_mga_getparam32_t getparam32;
+ drm_mga_getparam_t getparam;
+
+ if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32)))
+ return -EFAULT;
+
+ getparam.param = getparam32.param;
+ getparam.value = compat_ptr(getparam32.value);
+ return drm_ioctl_kernel(file, mga_getparam, &getparam, DRM_AUTH);
+}
+
+typedef struct drm_mga_drm_bootstrap32 {
+ u32 texture_handle;
+ u32 texture_size;
+ u32 primary_size;
+ u32 secondary_bin_count;
+ u32 secondary_bin_size;
+ u32 agp_mode;
+ u8 agp_size;
+} drm_mga_dma_bootstrap32_t;
+
+static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ drm_mga_dma_bootstrap32_t dma_bootstrap32;
+ drm_mga_dma_bootstrap_t dma_bootstrap;
+ int err;
+
+ if (copy_from_user(&dma_bootstrap32, (void __user *)arg,
+ sizeof(dma_bootstrap32)))
+ return -EFAULT;
+
+ dma_bootstrap.texture_handle = dma_bootstrap32.texture_handle;
+ dma_bootstrap.texture_size = dma_bootstrap32.texture_size;
+ dma_bootstrap.primary_size = dma_bootstrap32.primary_size;
+ dma_bootstrap.secondary_bin_count = dma_bootstrap32.secondary_bin_count;
+ dma_bootstrap.secondary_bin_size = dma_bootstrap32.secondary_bin_size;
+ dma_bootstrap.agp_mode = dma_bootstrap32.agp_mode;
+ dma_bootstrap.agp_size = dma_bootstrap32.agp_size;
+
+ err = drm_ioctl_kernel(file, mga_dma_bootstrap, &dma_bootstrap,
+ DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
+ if (err)
+ return err;
+
+ dma_bootstrap32.texture_handle = dma_bootstrap.texture_handle;
+ dma_bootstrap32.texture_size = dma_bootstrap.texture_size;
+ dma_bootstrap32.primary_size = dma_bootstrap.primary_size;
+ dma_bootstrap32.secondary_bin_count = dma_bootstrap.secondary_bin_count;
+ dma_bootstrap32.secondary_bin_size = dma_bootstrap.secondary_bin_size;
+ dma_bootstrap32.agp_mode = dma_bootstrap.agp_mode;
+ dma_bootstrap32.agp_size = dma_bootstrap.agp_size;
+ if (copy_to_user((void __user *)arg, &dma_bootstrap32,
+ sizeof(dma_bootstrap32)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static struct {
+ drm_ioctl_compat_t *fn;
+ char *name;
+} mga_compat_ioctls[] = {
+#define DRM_IOCTL32_DEF(n, f)[DRM_##n] = {.fn = f, .name = #n}
+ DRM_IOCTL32_DEF(MGA_INIT, compat_mga_init),
+ DRM_IOCTL32_DEF(MGA_GETPARAM, compat_mga_getparam),
+ DRM_IOCTL32_DEF(MGA_DMA_BOOTSTRAP, compat_mga_dma_bootstrap),
+};
+
+/**
+ * Called whenever a 32-bit process running under a 64-bit kernel
+ * performs an ioctl on /dev/dri/card<n>.
+ *
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ */
+long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ unsigned int nr = DRM_IOCTL_NR(cmd);
+ struct drm_file *file_priv = filp->private_data;
+ drm_ioctl_compat_t *fn = NULL;
+ int ret;
+
+ if (nr < DRM_COMMAND_BASE)
+ return drm_compat_ioctl(filp, cmd, arg);
+
+ if (nr >= DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls))
+ return drm_ioctl(filp, cmd, arg);
+
+ fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE].fn;
+ if (!fn)
+ return drm_ioctl(filp, cmd, arg);
+
+ DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",
+ task_pid_nr(current),
+ (long)old_encode_dev(file_priv->minor->kdev->devt),
+ file_priv->authenticated,
+ mga_compat_ioctls[nr - DRM_COMMAND_BASE].name);
+ ret = (*fn) (filp, cmd, arg);
+ if (ret)
+ DRM_DEBUG("ret = %d\n", ret);
+ return ret;
+}