Lima DRM driver

index e394799979a6..0a43107396b9 100644
@@ -361,8 +361,9 @@ void drm_lastclose(struct drm_device * dev)
  *
  * This function must be used by drivers as their &file_operations.release
  * method. It frees any resources associated with the open file, and calls the
- * &drm_driver.postclose driver callback. If this is the last open file for the
- * DRM device also proceeds to call the &drm_driver.lastclose driver callback.
+ * &drm_driver.preclose and &drm_driver.lastclose driver callbacks. If this is
+ * the last open file for the DRM device also proceeds to call the
+ * &drm_driver.lastclose driver callback.
  *
  * RETURNS:
  *

@@ -382,8 +383,7 @@ int drm_release(struct inode *inode, struct file *filp)
 	list_del(&file_priv->lhead);
 	mutex_unlock(&dev->filelist_mutex);
 
-	if (drm_core_check_feature(dev, DRIVER_LEGACY) &&
-	    dev->driver->preclose)
+	if (dev->driver->preclose)
 		dev->driver->preclose(dev, file_priv);
 
 	/* ========================================================

index d23dcdd1bd95..8d6080f97ed4 100644
@@ -107,6 +107,23 @@ struct drm_driver {
 	 */
 	int (*open) (struct drm_device *, struct drm_file *);
 
+	/**
+	 * @preclose:
+	 *
+	 * One of the driver callbacks when a new &struct drm_file is closed.
+	 * Useful for tearing down driver-private data structures allocated in
+	 * @open like buffer allocators, execution contexts or similar things.
+	 *
+	 * Since the display/modeset side of DRM can only be owned by exactly
+	 * one &struct drm_file (see &drm_file.is_master and &drm_device.master)
+	 * there should never be a need to tear down any modeset related
+	 * resources in this callback. Doing so would be a driver design bug.
+	 *
+	 * FIXME: It is not really clear why there's both @preclose and
+	 * @postclose. Without a really good reason, use @postclose only.
+	 */
+	void (*preclose) (struct drm_device *, struct drm_file *file_priv);
+
 	/**
 	 * @postclose:
 	 *

@@ -118,6 +135,9 @@ struct drm_driver {
 	 * one &struct drm_file (see &drm_file.is_master and &drm_device.master)
 	 * there should never be a need to tear down any modeset related
 	 * resources in this callback. Doing so would be a driver design bug.
+	 *
+	 * FIXME: It is not really clear why there's both @preclose and
+	 * @postclose. Without a really good reason, use @postclose only.
 	 */
 	void (*postclose) (struct drm_device *, struct drm_file *);
 

@@ -134,7 +154,7 @@ struct drm_driver {
 	 * state changes, e.g. in conjunction with the :ref:`vga_switcheroo`
 	 * infrastructure.
 	 *
-	 * This is called after @postclose hook has been called.
+	 * This is called after @preclose and @postclose have been called.
 	 *
 	 * NOTE:
 	 *

@@ -601,7 +621,6 @@ struct drm_driver {
 	/* List of devices hanging off this driver with stealth attach. */
 	struct list_head legacy_dev_list;
 	int (*firstopen) (struct drm_device *);
-	void (*preclose) (struct drm_device *, struct drm_file *file_priv);
 	int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
 	int (*dma_quiescent) (struct drm_device *);
 	int (*context_dtor) (struct drm_device *dev, int context);

new file mode 100644
index 000000000000..9df95e46fb2c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+#ifndef __LIMA_DRM_H__
+#define __LIMA_DRM_H__
+
+#include "drm.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define LIMA_INFO_GPU_MALI400 0x00
+#define LIMA_INFO_GPU_MALI450 0x01
+
+struct drm_lima_info {
+	__u32 gpu_id;   /* out */
+	__u32 num_pp;   /* out */
+	__u64 va_start; /* out */
+	__u64 va_end;   /* out */
+};
+
+struct drm_lima_gem_create {
+	__u32 size;    /* in */
+	__u32 flags;   /* in */
+	__u32 handle;  /* out */
+	__u32 pad;
+};
+
+struct drm_lima_gem_info {
+	__u32 handle;  /* in */
+	__u32 pad;
+	__u64 offset;  /* out */
+};
+
+#define LIMA_VA_OP_MAP    1
+#define LIMA_VA_OP_UNMAP  2
+
+struct drm_lima_gem_va {
+	__u32 handle;  /* in */
+	__u32 op;      /* in */
+	__u32 flags;   /* in */
+	__u32 va;      /* in */
+};
+
+#define LIMA_SUBMIT_BO_READ   0x01
+#define LIMA_SUBMIT_BO_WRITE  0x02
+
+struct drm_lima_gem_submit_bo {
+	__u32 handle;  /* in */
+	__u32 flags;   /* in */
+};
+
+#define LIMA_SUBMIT_DEP_FENCE   0x00
+#define LIMA_SUBMIT_DEP_SYNC_FD 0x01
+
+struct drm_lima_gem_submit_dep_fence {
+	__u32 type;
+	__u32 ctx;
+	__u32 pipe;
+	__u32 seq;
+};
+
+struct drm_lima_gem_submit_dep_sync_fd {
+	__u32 type;
+	__u32 fd;
+};
+
+union drm_lima_gem_submit_dep {
+	__u32 type;
+	struct drm_lima_gem_submit_dep_fence fence;
+	struct drm_lima_gem_submit_dep_sync_fd sync_fd;
+};
+
+#define LIMA_GP_FRAME_REG_NUM 6
+
+struct drm_lima_gp_frame {
+	__u32 frame[LIMA_GP_FRAME_REG_NUM];
+};
+
+#define LIMA_PP_FRAME_REG_NUM 23
+#define LIMA_PP_WB_REG_NUM 12
+
+struct drm_lima_m400_pp_frame {
+	__u32 frame[LIMA_PP_FRAME_REG_NUM];
+	__u32 num_pp;
+	__u32 wb[3 * LIMA_PP_WB_REG_NUM];
+	__u32 plbu_array_address[4];
+	__u32 fragment_stack_address[4];
+};
+
+struct drm_lima_m450_pp_frame {
+	__u32 frame[LIMA_PP_FRAME_REG_NUM];
+	__u32 _pad;
+	__u32 wb[3 * LIMA_PP_WB_REG_NUM];
+	__u32 dlbu_regs[4];
+	__u32 fragment_stack_address[8];
+};
+
+#define LIMA_PIPE_GP  0x00
+#define LIMA_PIPE_PP  0x01
+
+#define LIMA_SUBMIT_FLAG_EXPLICIT_FENCE (1 << 0)
+#define LIMA_SUBMIT_FLAG_SYNC_FD_OUT    (1 << 1)
+
+struct drm_lima_gem_submit_in {
+	__u32 ctx;
+	__u32 pipe;
+	__u32 nr_bos;
+	__u32 frame_size;
+	__u64 bos;
+	__u64 frame;
+	__u64 deps;
+	__u32 nr_deps;
+	__u32 flags;
+};
+
+struct drm_lima_gem_submit_out {
+	__u32 fence;
+	__u32 done;
+	__u32 sync_fd;
+	__u32 _pad;
+};
+
+union drm_lima_gem_submit {
+	struct drm_lima_gem_submit_in in;
+	struct drm_lima_gem_submit_out out;
+};
+
+struct drm_lima_wait_fence {
+	__u32 ctx;         /* in */
+	__u32 pipe;        /* in */
+	__u64 timeout_ns;  /* in */
+	__u32 seq;         /* in */
+	__u32 _pad;
+};
+
+#define LIMA_GEM_WAIT_READ   0x01
+#define LIMA_GEM_WAIT_WRITE  0x02
+
+struct drm_lima_gem_wait {
+	__u32 handle;      /* in */
+	__u32 op;          /* in */
+	__u64 timeout_ns;  /* in */
+};
+
+#define LIMA_CTX_OP_CREATE 1
+#define LIMA_CTX_OP_FREE   2
+
+struct drm_lima_ctx {
+	__u32 op;          /* in */
+	__u32 id;          /* in/out */
+};
+
+#define DRM_LIMA_INFO        0x00
+#define DRM_LIMA_GEM_CREATE  0x01
+#define DRM_LIMA_GEM_INFO    0x02
+#define DRM_LIMA_GEM_VA      0x03
+#define DRM_LIMA_GEM_SUBMIT  0x04
+#define DRM_LIMA_WAIT_FENCE  0x05
+#define DRM_LIMA_GEM_WAIT    0x06
+#define DRM_LIMA_CTX         0x07
+
+#define DRM_IOCTL_LIMA_INFO DRM_IOR(DRM_COMMAND_BASE + DRM_LIMA_INFO, struct drm_lima_info)
+#define DRM_IOCTL_LIMA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GEM_CREATE, struct drm_lima_gem_create)
+#define DRM_IOCTL_LIMA_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GEM_INFO, struct drm_lima_gem_info)
+#define DRM_IOCTL_LIMA_GEM_VA DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_GEM_VA, struct drm_lima_gem_va)
+#define DRM_IOCTL_LIMA_GEM_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_GEM_SUBMIT, union drm_lima_gem_submit)
+#define DRM_IOCTL_LIMA_WAIT_FENCE DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_WAIT_FENCE, struct drm_lima_wait_fence)
+#define DRM_IOCTL_LIMA_GEM_WAIT DRM_IOW(DRM_COMMAND_BASE + DRM_LIMA_GEM_WAIT, struct drm_lima_gem_wait)
+#define DRM_IOCTL_LIMA_CTX DRM_IOWR(DRM_COMMAND_BASE + DRM_LIMA_CTX, struct drm_lima_ctx)
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __LIMA_DRM_H__ */

new file mode 100644
index 000000000000..ea4a37d69b98
@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2010-2017 ARM Limited. All rights reserved.
+ * Copyright (C) 2017-2018 Lima Project
+ * 
+ * This program is free software and is provided to you under
+ * the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation, and any use by
+ * you of this program is subject to the terms of such GNU
+ * licence.
+ * 
+ * A copy of the licence is included with the program, and
+ * can also be obtained from Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __LIMA_REGS_H__
+#define __LIMA_REGS_H__
+
+/* PMU regs */
+#define LIMA_PMU_POWER_UP                  0x00
+#define LIMA_PMU_POWER_DOWN                0x04
+#define   LIMA_PMU_POWER_GP0_MASK          (1 << 0)
+#define   LIMA_PMU_POWER_L2_MASK           (1 << 1)
+#define   LIMA_PMU_POWER_PP_MASK(i)        (1 << (2 + i))
+
+/*
+ * On Mali450 each block automatically starts up its corresponding L2
+ * and the PPs are not fully independent controllable.
+ * Instead PP0, PP1-3 and PP4-7 can be turned on or off.
+ */
+#define   LIMA450_PMU_POWER_PP0_MASK       BIT(1)
+#define   LIMA450_PMU_POWER_PP13_MASK      BIT(2)
+#define   LIMA450_PMU_POWER_PP47_MASK      BIT(3)
+
+#define LIMA_PMU_STATUS                    0x08
+#define LIMA_PMU_INT_MASK                  0x0C
+#define LIMA_PMU_INT_RAWSTAT               0x10
+#define LIMA_PMU_INT_CLEAR                 0x18
+#define   LIMA_PMU_INT_CMD_MASK            (1 << 0)
+#define LIMA_PMU_SW_DELAY                  0x1C
+
+/* L2 cache regs */
+#define LIMA_L2_CACHE_SIZE		 0x0004
+#define LIMA_L2_CACHE_STATUS		 0x0008
+#define   LIMA_L2_CACHE_STATUS_COMMAND_BUSY  (1 << 0)
+#define   LIMA_L2_CACHE_STATUS_DATA_BUSY     (1 << 1)
+#define LIMA_L2_CACHE_COMMAND		 0x0010
+#define   LIMA_L2_CACHE_COMMAND_CLEAR_ALL    (1 << 0)
+#define LIMA_L2_CACHE_CLEAR_PAGE	 0x0014
+#define LIMA_L2_CACHE_MAX_READS		 0x0018
+#define LIMA_L2_CACHE_ENABLE		 0x001C
+#define   LIMA_L2_CACHE_ENABLE_ACCESS        (1 << 0)
+#define   LIMA_L2_CACHE_ENABLE_READ_ALLOCATE (1 << 1)
+#define LIMA_L2_CACHE_PERFCNT_SRC0	 0x0020
+#define LIMA_L2_CACHE_PERFCNT_VAL0	 0x0024
+#define LIMA_L2_CACHE_PERFCNT_SRC1	 0x0028
+#define LIMA_L2_CACHE_ERFCNT_VAL1	 0x002C
+
+/* GP regs */
+#define LIMA_GP_VSCL_START_ADDR                0x00
+#define LIMA_GP_VSCL_END_ADDR                  0x04
+#define LIMA_GP_PLBUCL_START_ADDR              0x08
+#define LIMA_GP_PLBUCL_END_ADDR                0x0c
+#define LIMA_GP_PLBU_ALLOC_START_ADDR          0x10
+#define LIMA_GP_PLBU_ALLOC_END_ADDR            0x14
+#define LIMA_GP_CMD                            0x20
+#define   LIMA_GP_CMD_START_VS                 (1 << 0)
+#define   LIMA_GP_CMD_START_PLBU               (1 << 1)
+#define   LIMA_GP_CMD_UPDATE_PLBU_ALLOC        (1 << 4)
+#define   LIMA_GP_CMD_RESET                    (1 << 5)
+#define   LIMA_GP_CMD_FORCE_HANG               (1 << 6)
+#define   LIMA_GP_CMD_STOP_BUS                 (1 << 9)
+#define   LIMA_GP_CMD_SOFT_RESET               (1 << 10)
+#define LIMA_GP_INT_RAWSTAT                    0x24
+#define LIMA_GP_INT_CLEAR                      0x28
+#define LIMA_GP_INT_MASK                       0x2C
+#define LIMA_GP_INT_STAT                       0x30
+#define   LIMA_GP_IRQ_VS_END_CMD_LST           (1 << 0)
+#define   LIMA_GP_IRQ_PLBU_END_CMD_LST         (1 << 1)
+#define   LIMA_GP_IRQ_PLBU_OUT_OF_MEM          (1 << 2)
+#define   LIMA_GP_IRQ_VS_SEM_IRQ               (1 << 3)
+#define   LIMA_GP_IRQ_PLBU_SEM_IRQ             (1 << 4)
+#define   LIMA_GP_IRQ_HANG                     (1 << 5)
+#define   LIMA_GP_IRQ_FORCE_HANG               (1 << 6)
+#define   LIMA_GP_IRQ_PERF_CNT_0_LIMIT         (1 << 7)
+#define   LIMA_GP_IRQ_PERF_CNT_1_LIMIT         (1 << 8)
+#define   LIMA_GP_IRQ_WRITE_BOUND_ERR          (1 << 9)
+#define   LIMA_GP_IRQ_SYNC_ERROR               (1 << 10)
+#define   LIMA_GP_IRQ_AXI_BUS_ERROR            (1 << 11)
+#define   LIMA_GP_IRQ_AXI_BUS_STOPPED          (1 << 12)
+#define   LIMA_GP_IRQ_VS_INVALID_CMD           (1 << 13)
+#define   LIMA_GP_IRQ_PLB_INVALID_CMD          (1 << 14)
+#define   LIMA_GP_IRQ_RESET_COMPLETED          (1 << 19)
+#define   LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW      (1 << 20)
+#define   LIMA_GP_IRQ_SEMAPHORE_OVERFLOW       (1 << 21)
+#define   LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS  (1 << 22)
+#define LIMA_GP_WRITE_BOUND_LOW                0x34
+#define LIMA_GP_PERF_CNT_0_ENABLE              0x3C
+#define LIMA_GP_PERF_CNT_1_ENABLE              0x40
+#define LIMA_GP_PERF_CNT_0_SRC                 0x44
+#define LIMA_GP_PERF_CNT_1_SRC                 0x48
+#define LIMA_GP_PERF_CNT_0_VALUE               0x4C
+#define LIMA_GP_PERF_CNT_1_VALUE               0x50
+#define LIMA_GP_PERF_CNT_0_LIMIT               0x54
+#define LIMA_GP_STATUS                         0x68
+#define   LIMA_GP_STATUS_VS_ACTIVE             (1 << 1)
+#define   LIMA_GP_STATUS_BUS_STOPPED	       (1 << 2)
+#define	  LIMA_GP_STATUS_PLBU_ACTIVE	       (1 << 3)
+#define	  LIMA_GP_STATUS_BUS_ERROR	       (1 << 6)
+#define	  LIMA_GP_STATUS_WRITE_BOUND_ERR       (1 << 8)
+#define LIMA_GP_VERSION                        0x6C
+#define LIMA_GP_VSCL_START_ADDR_READ           0x80
+#define LIMA_GP_PLBCL_START_ADDR_READ          0x84
+#define LIMA_GP_CONTR_AXI_BUS_ERROR_STAT       0x94
+
+#define LIMA_GP_IRQ_MASK_ALL		   \
+	(				   \
+	 LIMA_GP_IRQ_VS_END_CMD_LST      | \
+	 LIMA_GP_IRQ_PLBU_END_CMD_LST    | \
+	 LIMA_GP_IRQ_PLBU_OUT_OF_MEM     | \
+	 LIMA_GP_IRQ_VS_SEM_IRQ          | \
+	 LIMA_GP_IRQ_PLBU_SEM_IRQ        | \
+	 LIMA_GP_IRQ_HANG                | \
+	 LIMA_GP_IRQ_FORCE_HANG          | \
+	 LIMA_GP_IRQ_PERF_CNT_0_LIMIT    | \
+	 LIMA_GP_IRQ_PERF_CNT_1_LIMIT    | \
+	 LIMA_GP_IRQ_WRITE_BOUND_ERR     | \
+	 LIMA_GP_IRQ_SYNC_ERROR          | \
+	 LIMA_GP_IRQ_AXI_BUS_ERROR       | \
+	 LIMA_GP_IRQ_AXI_BUS_STOPPED     | \
+	 LIMA_GP_IRQ_VS_INVALID_CMD      | \
+	 LIMA_GP_IRQ_PLB_INVALID_CMD     | \
+	 LIMA_GP_IRQ_RESET_COMPLETED     | \
+	 LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW | \
+	 LIMA_GP_IRQ_SEMAPHORE_OVERFLOW  | \
+	 LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS)
+
+#define LIMA_GP_IRQ_MASK_ERROR             \
+	(                                  \
+	 LIMA_GP_IRQ_PLBU_OUT_OF_MEM     | \
+	 LIMA_GP_IRQ_FORCE_HANG          | \
+	 LIMA_GP_IRQ_WRITE_BOUND_ERR     | \
+	 LIMA_GP_IRQ_SYNC_ERROR          | \
+	 LIMA_GP_IRQ_AXI_BUS_ERROR       | \
+	 LIMA_GP_IRQ_VS_INVALID_CMD      | \
+	 LIMA_GP_IRQ_PLB_INVALID_CMD     | \
+	 LIMA_GP_IRQ_SEMAPHORE_UNDERFLOW | \
+	 LIMA_GP_IRQ_SEMAPHORE_OVERFLOW  | \
+	 LIMA_GP_IRQ_PTR_ARRAY_OUT_OF_BOUNDS)
+
+#define LIMA_GP_IRQ_MASK_USED		   \
+	(				   \
+	 LIMA_GP_IRQ_VS_END_CMD_LST      | \
+	 LIMA_GP_IRQ_PLBU_END_CMD_LST    | \
+	 LIMA_GP_IRQ_MASK_ERROR)
+
+/* PP regs */
+#define LIMA_PP_FRAME                        0x0000
+#define LIMA_PP_RSW			     0x0004
+#define LIMA_PP_STACK			     0x0030
+#define LIMA_PP_STACK_SIZE		     0x0034
+#define LIMA_PP_ORIGIN_OFFSET_X	             0x0040
+#define LIMA_PP_WB(i) 			     (0x0100 * (i + 1))
+#define   LIMA_PP_WB_SOURCE_SELECT           0x0000
+#define	  LIMA_PP_WB_SOURCE_ADDR             0x0004
+
+#define LIMA_PP_VERSION                      0x1000
+#define LIMA_PP_CURRENT_REND_LIST_ADDR       0x1004
+#define	LIMA_PP_STATUS                       0x1008
+#define	  LIMA_PP_STATUS_RENDERING_ACTIVE    (1 << 0)
+#define	  LIMA_PP_STATUS_BUS_STOPPED	     (1 << 4)
+#define	LIMA_PP_CTRL                         0x100c
+#define   LIMA_PP_CTRL_STOP_BUS	             (1 << 0)
+#define	  LIMA_PP_CTRL_FLUSH_CACHES          (1 << 3)
+#define	  LIMA_PP_CTRL_FORCE_RESET           (1 << 5)
+#define	  LIMA_PP_CTRL_START_RENDERING       (1 << 6)
+#define	  LIMA_PP_CTRL_SOFT_RESET            (1 << 7)
+#define	LIMA_PP_INT_RAWSTAT                  0x1020
+#define	LIMA_PP_INT_CLEAR                    0x1024
+#define	LIMA_PP_INT_MASK                     0x1028
+#define	LIMA_PP_INT_STATUS                   0x102c
+#define	  LIMA_PP_IRQ_END_OF_FRAME           (1 << 0)
+#define	  LIMA_PP_IRQ_END_OF_TILE	     (1 << 1)
+#define	  LIMA_PP_IRQ_HANG		     (1 << 2)
+#define	  LIMA_PP_IRQ_FORCE_HANG	     (1 << 3)
+#define	  LIMA_PP_IRQ_BUS_ERROR		     (1 << 4)
+#define	  LIMA_PP_IRQ_BUS_STOP		     (1 << 5)
+#define	  LIMA_PP_IRQ_CNT_0_LIMIT	     (1 << 6)
+#define	  LIMA_PP_IRQ_CNT_1_LIMIT	     (1 << 7)
+#define	  LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR   (1 << 8)
+#define	  LIMA_PP_IRQ_INVALID_PLIST_COMMAND  (1 << 9)
+#define	  LIMA_PP_IRQ_CALL_STACK_UNDERFLOW   (1 << 10)
+#define	  LIMA_PP_IRQ_CALL_STACK_OVERFLOW    (1 << 11)
+#define	  LIMA_PP_IRQ_RESET_COMPLETED	     (1 << 12)
+#define	LIMA_PP_WRITE_BOUNDARY_LOW           0x1044
+#define	LIMA_PP_BUS_ERROR_STATUS             0x1050
+#define	LIMA_PP_PERF_CNT_0_ENABLE            0x1080
+#define	LIMA_PP_PERF_CNT_0_SRC               0x1084
+#define	LIMA_PP_PERF_CNT_0_LIMIT             0x1088
+#define	LIMA_PP_PERF_CNT_0_VALUE             0x108c
+#define	LIMA_PP_PERF_CNT_1_ENABLE            0x10a0
+#define	LIMA_PP_PERF_CNT_1_SRC               0x10a4
+#define	LIMA_PP_PERF_CNT_1_LIMIT             0x10a8
+#define	LIMA_PP_PERF_CNT_1_VALUE             0x10ac
+#define LIMA_PP_PERFMON_CONTR                0x10b0
+#define LIMA_PP_PERFMON_BASE                 0x10b4
+
+#define LIMA_PP_IRQ_MASK_ALL                 \
+	(                                    \
+	 LIMA_PP_IRQ_END_OF_FRAME          | \
+	 LIMA_PP_IRQ_END_OF_TILE           | \
+	 LIMA_PP_IRQ_HANG                  | \
+	 LIMA_PP_IRQ_FORCE_HANG            | \
+	 LIMA_PP_IRQ_BUS_ERROR             | \
+	 LIMA_PP_IRQ_BUS_STOP              | \
+	 LIMA_PP_IRQ_CNT_0_LIMIT           | \
+	 LIMA_PP_IRQ_CNT_1_LIMIT           | \
+	 LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR  | \
+	 LIMA_PP_IRQ_INVALID_PLIST_COMMAND | \
+	 LIMA_PP_IRQ_CALL_STACK_UNDERFLOW  | \
+	 LIMA_PP_IRQ_CALL_STACK_OVERFLOW   | \
+	 LIMA_PP_IRQ_RESET_COMPLETED)
+
+#define LIMA_PP_IRQ_MASK_ERROR               \
+	(                                    \
+	 LIMA_PP_IRQ_FORCE_HANG            | \
+	 LIMA_PP_IRQ_BUS_ERROR             | \
+	 LIMA_PP_IRQ_WRITE_BOUNDARY_ERROR  | \
+	 LIMA_PP_IRQ_INVALID_PLIST_COMMAND | \
+	 LIMA_PP_IRQ_CALL_STACK_UNDERFLOW  | \
+	 LIMA_PP_IRQ_CALL_STACK_OVERFLOW)
+
+#define LIMA_PP_IRQ_MASK_USED                \
+	(                                    \
+	 LIMA_PP_IRQ_END_OF_FRAME          | \
+	 LIMA_PP_IRQ_MASK_ERROR)
+
+/* MMU regs */
+#define LIMA_MMU_DTE_ADDR		  0x0000
+#define LIMA_MMU_STATUS			  0x0004
+#define   LIMA_MMU_STATUS_PAGING_ENABLED      (1 << 0)
+#define   LIMA_MMU_STATUS_PAGE_FAULT_ACTIVE   (1 << 1)
+#define   LIMA_MMU_STATUS_STALL_ACTIVE        (1 << 2)
+#define   LIMA_MMU_STATUS_IDLE                (1 << 3)
+#define   LIMA_MMU_STATUS_REPLAY_BUFFER_EMPTY (1 << 4)
+#define   LIMA_MMU_STATUS_PAGE_FAULT_IS_WRITE (1 << 5)
+#define   LIMA_MMU_STATUS_BUS_ID(x)           ((x >> 6) & 0x1F)
+#define LIMA_MMU_COMMAND		  0x0008
+#define   LIMA_MMU_COMMAND_ENABLE_PAGING    0x00
+#define   LIMA_MMU_COMMAND_DISABLE_PAGING   0x01
+#define   LIMA_MMU_COMMAND_ENABLE_STALL     0x02
+#define   LIMA_MMU_COMMAND_DISABLE_STALL    0x03
+#define   LIMA_MMU_COMMAND_ZAP_CACHE        0x04
+#define   LIMA_MMU_COMMAND_PAGE_FAULT_DONE  0x05
+#define   LIMA_MMU_COMMAND_HARD_RESET       0x06
+#define LIMA_MMU_PAGE_FAULT_ADDR          0x000C
+#define LIMA_MMU_ZAP_ONE_LINE	          0x0010
+#define LIMA_MMU_INT_RAWSTAT	          0x0014
+#define LIMA_MMU_INT_CLEAR		  0x0018
+#define LIMA_MMU_INT_MASK		  0x001C
+#define   LIMA_MMU_INT_PAGE_FAULT           0x01
+#define   LIMA_MMU_INT_READ_BUS_ERROR       0x02
+#define LIMA_MMU_INT_STATUS		  0x0020
+
+#define LIMA_VM_FLAG_PRESENT          (1 << 0)
+#define LIMA_VM_FLAG_READ_PERMISSION  (1 << 1)
+#define LIMA_VM_FLAG_WRITE_PERMISSION (1 << 2)
+#define LIMA_VM_FLAG_OVERRIDE_CACHE   (1 << 3)
+#define LIMA_VM_FLAG_WRITE_CACHEABLE  (1 << 4)
+#define LIMA_VM_FLAG_WRITE_ALLOCATE   (1 << 5)
+#define LIMA_VM_FLAG_WRITE_BUFFERABLE (1 << 6)
+#define LIMA_VM_FLAG_READ_CACHEABLE   (1 << 7)
+#define LIMA_VM_FLAG_READ_ALLOCATE    (1 << 8)
+#define LIMA_VM_FLAG_MASK             0x1FF
+
+#define LIMA_VM_FLAGS_CACHE (			 \
+		LIMA_VM_FLAG_PRESENT |		 \
+		LIMA_VM_FLAG_READ_PERMISSION |	 \
+		LIMA_VM_FLAG_WRITE_PERMISSION |	 \
+		LIMA_VM_FLAG_OVERRIDE_CACHE |	 \
+		LIMA_VM_FLAG_WRITE_CACHEABLE |	 \
+		LIMA_VM_FLAG_WRITE_BUFFERABLE |	 \
+		LIMA_VM_FLAG_READ_CACHEABLE |	 \
+		LIMA_VM_FLAG_READ_ALLOCATE )
+
+#define LIMA_VM_FLAGS_UNCACHE (			\
+		LIMA_VM_FLAG_PRESENT |		\
+		LIMA_VM_FLAG_READ_PERMISSION |	\
+		LIMA_VM_FLAG_WRITE_PERMISSION )
+
+/* DLBU regs */
+#define LIMA_DLBU_MASTER_TLLIST_PHYS_ADDR  0x0000
+#define	LIMA_DLBU_MASTER_TLLIST_VADDR      0x0004
+#define	LIMA_DLBU_TLLIST_VBASEADDR         0x0008
+#define	LIMA_DLBU_FB_DIM                   0x000C
+#define	LIMA_DLBU_TLLIST_CONF              0x0010
+#define	LIMA_DLBU_START_TILE_POS           0x0014
+#define	LIMA_DLBU_PP_ENABLE_MASK           0x0018
+
+/* BCAST regs */
+#define LIMA_BCAST_BROADCAST_MASK    0x0
+#define LIMA_BCAST_INTERRUPT_MASK    0x4
+
+#endif

new file mode 100644
index 000000000000..4df24a6cfff3
@@ -0,0 +1,466 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/module.h>
+#include <linux/of_platform.h>
+#include <linux/log2.h>
+#include <drm/drm_prime.h>
+#include <drm/lima_drm.h>
+
+#include "lima_drv.h"
+#include "lima_gem.h"
+#include "lima_gem_prime.h"
+#include "lima_vm.h"
+
+int lima_sched_timeout_ms = 0;
+int lima_sched_max_tasks = 32;
+int lima_max_mem = -1;
+
+MODULE_PARM_DESC(sched_timeout_ms, "task run timeout in ms (0 = no timeout (default))");
+module_param_named(sched_timeout_ms, lima_sched_timeout_ms, int, 0444);
+
+MODULE_PARM_DESC(sched_max_tasks, "max queued task num in a context (default 32)");
+module_param_named(sched_max_tasks, lima_sched_max_tasks, int, 0444);
+
+MODULE_PARM_DESC(max_mem, "Max memory size in MB can be used (<0 = auto)");
+module_param_named(max_mem, lima_max_mem, int, 0444);
+
+static int lima_ioctl_info(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_info *info = data;
+	struct lima_device *ldev = to_lima_dev(dev);
+
+	switch (ldev->id) {
+	case lima_gpu_mali400:
+		info->gpu_id = LIMA_INFO_GPU_MALI400;
+		break;
+	case lima_gpu_mali450:
+		info->gpu_id = LIMA_INFO_GPU_MALI450;
+		break;
+	default:
+		return -ENODEV;
+	}
+	info->num_pp = ldev->pipe[lima_pipe_pp].num_processor;
+	info->va_start = ldev->va_start;
+	info->va_end = ldev->va_end;
+	return 0;
+}
+
+static int lima_ioctl_gem_create(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_gem_create *args = data;
+
+	if (args->flags)
+		return -EINVAL;
+
+	if (args->size == 0)
+		return -EINVAL;
+
+	return lima_gem_create_handle(dev, file, args->size, args->flags, &args->handle);
+}
+
+static int lima_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_gem_info *args = data;
+
+	return lima_gem_mmap_offset(file, args->handle, &args->offset);
+}
+
+static int lima_ioctl_gem_va(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_gem_va *args = data;
+
+	switch (args->op) {
+	case LIMA_VA_OP_MAP:
+		return lima_gem_va_map(file, args->handle, args->flags, args->va);
+	case LIMA_VA_OP_UNMAP:
+		return lima_gem_va_unmap(file, args->handle, args->va);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int lima_ioctl_gem_submit(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_gem_submit_in *args = data;
+	struct lima_device *ldev = to_lima_dev(dev);
+	struct lima_drm_priv *priv = file->driver_priv;
+	struct drm_lima_gem_submit_bo *bos;
+	struct ttm_validate_buffer *vbs;
+	union drm_lima_gem_submit_dep *deps = NULL;
+	struct lima_sched_pipe *pipe;
+	struct lima_sched_task *task;
+	struct lima_ctx *ctx;
+	struct lima_submit submit = {0};
+	int err = 0, size;
+
+	if (args->pipe >= lima_pipe_num || args->nr_bos == 0)
+		return -EINVAL;
+
+	if (args->flags & ~(LIMA_SUBMIT_FLAG_EXPLICIT_FENCE |
+			    LIMA_SUBMIT_FLAG_SYNC_FD_OUT))
+		return -EINVAL;
+
+	pipe = ldev->pipe + args->pipe;
+	if (args->frame_size != pipe->frame_size)
+		return -EINVAL;
+
+	size = args->nr_bos * (sizeof(*submit.bos) + sizeof(*submit.vbs)) +
+		args->nr_deps * sizeof(*submit.deps);
+	bos = kzalloc(size, GFP_KERNEL);
+	if (!bos)
+		return -ENOMEM;
+
+	size = args->nr_bos * sizeof(*submit.bos);
+	if (copy_from_user(bos, u64_to_user_ptr(args->bos), size)) {
+		err = -EFAULT;
+		goto out0;
+	}
+
+	vbs = (void *)bos + size;
+
+	if (args->nr_deps) {
+		deps = (void *)vbs + args->nr_bos * sizeof(*submit.vbs);
+		size = args->nr_deps * sizeof(*submit.deps);
+		if (copy_from_user(deps, u64_to_user_ptr(args->deps), size)) {
+			err = -EFAULT;
+			goto out0;
+		}
+	}
+
+	task = kmem_cache_zalloc(pipe->task_slab, GFP_KERNEL);
+	if (!task) {
+		err = -ENOMEM;
+		goto out0;
+	}
+
+	task->frame = task + 1;
+	if (copy_from_user(task->frame, u64_to_user_ptr(args->frame), args->frame_size)) {
+		err = -EFAULT;
+		goto out1;
+	}
+
+	err = pipe->task_validate(pipe, task);
+	if (err)
+		goto out1;
+
+	ctx = lima_ctx_get(&priv->ctx_mgr, args->ctx);
+	if (!ctx) {
+		err = -ENOENT;
+		goto out1;
+	}
+
+	submit.pipe = args->pipe;
+	submit.bos = bos;
+	submit.vbs = vbs;
+	submit.nr_bos = args->nr_bos;
+	submit.task = task;
+	submit.ctx = ctx;
+	submit.deps = deps;
+	submit.nr_deps = args->nr_deps;
+	submit.flags = args->flags;
+
+	err = lima_gem_submit(file, &submit);
+	if (!err) {
+		struct drm_lima_gem_submit_out *out = data;
+		out->fence = submit.fence;
+		out->done = submit.done;
+		out->sync_fd = submit.sync_fd;
+	}
+
+	lima_ctx_put(ctx);
+out1:
+	if (err)
+		kmem_cache_free(pipe->task_slab, task);
+out0:
+	kfree(bos);
+	return err;
+}
+
+static int lima_wait_fence(struct dma_fence *fence, u64 timeout_ns)
+{
+	signed long ret;
+
+	if (!timeout_ns)
+		ret = dma_fence_is_signaled(fence) ? 0 : -EBUSY;
+	else {
+		unsigned long timeout = lima_timeout_to_jiffies(timeout_ns);
+
+		/* must use long for result check because in 64bit arch int
+		 * will overflow if timeout is too large and get <0 result
+		 */
+		ret = dma_fence_wait_timeout(fence, true, timeout);
+		if (ret == 0)
+			ret = timeout ? -ETIMEDOUT : -EBUSY;
+		else if (ret > 0)
+			ret = 0;
+	}
+
+	return ret;
+}
+
+static int lima_ioctl_wait_fence(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_wait_fence *args = data;
+	struct lima_drm_priv *priv = file->driver_priv;
+	struct dma_fence *fence;
+	int err = 0;
+
+	fence = lima_ctx_get_native_fence(&priv->ctx_mgr, args->ctx,
+					  args->pipe, args->seq);
+	if (IS_ERR(fence))
+		return PTR_ERR(fence);
+
+	if (fence) {
+		err = lima_wait_fence(fence, args->timeout_ns);
+		dma_fence_put(fence);
+	}
+
+	return err;
+}
+
+static int lima_ioctl_gem_wait(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_gem_wait *args = data;
+
+	if (!(args->op & (LIMA_GEM_WAIT_READ|LIMA_GEM_WAIT_WRITE)))
+	    return -EINVAL;
+
+	return lima_gem_wait(file, args->handle, args->op, args->timeout_ns);
+}
+
+static int lima_ioctl_ctx(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_lima_ctx *args = data;
+	struct lima_drm_priv *priv = file->driver_priv;
+	struct lima_device *ldev = to_lima_dev(dev);
+
+	if (args->op == LIMA_CTX_OP_CREATE)
+		return lima_ctx_create(ldev, &priv->ctx_mgr, &args->id);
+	else if (args->op == LIMA_CTX_OP_FREE)
+		return lima_ctx_free(&priv->ctx_mgr, args->id);
+
+	return -EINVAL;
+}
+
+static int lima_drm_driver_open(struct drm_device *dev, struct drm_file *file)
+{
+	int err;
+	struct lima_drm_priv *priv;
+	struct lima_device *ldev = to_lima_dev(dev);
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->vm = lima_vm_create(ldev);
+	if (!priv->vm) {
+		err = -ENOMEM;
+		goto err_out0;
+	}
+
+        lima_ctx_mgr_init(&priv->ctx_mgr);
+
+	file->driver_priv = priv;
+	return 0;
+
+err_out0:
+	kfree(priv);
+	return err;
+}
+
+static void lima_drm_driver_preclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct lima_drm_priv *priv = file->driver_priv;
+
+        lima_ctx_mgr_fini(&priv->ctx_mgr);
+}
+
+static void lima_drm_driver_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct lima_drm_priv *priv = file->driver_priv;
+
+	lima_vm_put(priv->vm);
+	kfree(priv);
+}
+
+static const struct drm_ioctl_desc lima_drm_driver_ioctls[] = {
+	DRM_IOCTL_DEF_DRV(LIMA_INFO, lima_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_GEM_CREATE, lima_ioctl_gem_create, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_GEM_INFO, lima_ioctl_gem_info, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_GEM_VA, lima_ioctl_gem_va, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_GEM_SUBMIT, lima_ioctl_gem_submit, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_WAIT_FENCE, lima_ioctl_wait_fence, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_GEM_WAIT, lima_ioctl_gem_wait, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(LIMA_CTX, lima_ioctl_ctx, DRM_AUTH|DRM_RENDER_ALLOW),
+};
+
+static const struct file_operations lima_drm_driver_fops = {
+	.owner              = THIS_MODULE,
+	.open               = drm_open,
+	.release            = drm_release,
+	.unlocked_ioctl     = drm_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl       = drm_compat_ioctl,
+#endif
+	.mmap               = lima_gem_mmap,
+};
+
+static struct drm_driver lima_drm_driver = {
+	.driver_features    = DRIVER_RENDER | DRIVER_GEM | DRIVER_PRIME,
+	.open               = lima_drm_driver_open,
+	.preclose           = lima_drm_driver_preclose,
+	.postclose          = lima_drm_driver_postclose,
+	.ioctls             = lima_drm_driver_ioctls,
+	.num_ioctls         = ARRAY_SIZE(lima_drm_driver_ioctls),
+	.fops               = &lima_drm_driver_fops,
+	.gem_free_object_unlocked = lima_gem_free_object,
+	.gem_open_object    = lima_gem_object_open,
+	.gem_close_object   = lima_gem_object_close,
+	.name               = "lima",
+	.desc               = "lima DRM",
+	.date               = "20170325",
+	.major              = 1,
+	.minor              = 0,
+	.patchlevel         = 0,
+
+	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+	.gem_prime_import   = drm_gem_prime_import,
+	.gem_prime_import_sg_table = lima_gem_prime_import_sg_table,
+	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+	.gem_prime_export   = drm_gem_prime_export,
+	.gem_prime_res_obj  = lima_gem_prime_res_obj,
+	.gem_prime_get_sg_table = lima_gem_prime_get_sg_table,
+};
+
+static int lima_pdev_probe(struct platform_device *pdev)
+{
+	struct lima_device *ldev;
+	struct drm_device *ddev;
+	int err;
+
+	ldev = devm_kzalloc(&pdev->dev, sizeof(*ldev), GFP_KERNEL);
+	if (!ldev)
+		return -ENOMEM;
+
+	ldev->pdev = pdev;
+	ldev->dev = &pdev->dev;
+	ldev->id = (enum lima_gpu_id)of_device_get_match_data(&pdev->dev);
+
+	platform_set_drvdata(pdev, ldev);
+
+	/* Allocate and initialize the DRM device. */
+	ddev = drm_dev_alloc(&lima_drm_driver, &pdev->dev);
+	if (IS_ERR(ddev))
+		return PTR_ERR(ddev);
+
+	ddev->dev_private = ldev;
+	ldev->ddev = ddev;
+
+	err = lima_device_init(ldev);
+	if (err) {
+		dev_err(&pdev->dev, "Fatal error during GPU init\n");
+		goto err_out0;
+	}
+
+	/*
+	 * Register the DRM device with the core and the connectors with
+	 * sysfs.
+	 */
+	err = drm_dev_register(ddev, 0);
+	if (err < 0)
+		goto err_out1;
+
+	return 0;
+
+err_out1:
+	lima_device_fini(ldev);
+err_out0:
+	drm_dev_unref(ddev);
+	return err;
+}
+
+static int lima_pdev_remove(struct platform_device *pdev)
+{
+	struct lima_device *ldev = platform_get_drvdata(pdev);
+	struct drm_device *ddev = ldev->ddev;
+
+	drm_dev_unregister(ddev);
+	lima_device_fini(ldev);
+	drm_dev_unref(ddev);
+	return 0;
+}
+
+static const struct of_device_id dt_match[] = {
+	{ .compatible = "arm,mali-400", .data = (void *)lima_gpu_mali400 },
+	{ .compatible = "arm,mali-450", .data = (void *)lima_gpu_mali450 },
+	{}
+};
+MODULE_DEVICE_TABLE(of, dt_match);
+
+static struct platform_driver lima_platform_driver = {
+	.probe      = lima_pdev_probe,
+	.remove     = lima_pdev_remove,
+	.driver     = {
+		.name   = "lima",
+		.of_match_table = dt_match,
+	},
+};
+
+static void lima_check_module_param(void)
+{
+	if (lima_sched_max_tasks < 4)
+		lima_sched_max_tasks = 4;
+	else
+		lima_sched_max_tasks = roundup_pow_of_two(lima_sched_max_tasks);
+
+	if (lima_max_mem < 32)
+		lima_max_mem = -1;
+}
+
+static int __init lima_init(void)
+{
+	int ret;
+
+	lima_check_module_param();
+	ret = lima_sched_slab_init();
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&lima_platform_driver);
+	if (ret)
+		lima_sched_slab_fini();
+
+	return ret;
+}
+module_init(lima_init);
+
+static void __exit lima_exit(void)
+{
+	platform_driver_unregister(&lima_platform_driver);
+	lima_sched_slab_fini();
+}
+module_exit(lima_exit);
+
+MODULE_AUTHOR("Lima Project Developers");
+MODULE_DESCRIPTION("Lima DRM Driver");
+MODULE_LICENSE("GPL v2");

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new file mode 100644
index 000000000000..a6c3905a0c85
@@ -0,0 +1,407 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include "lima_device.h"
+#include "lima_gp.h"
+#include "lima_pp.h"
+#include "lima_mmu.h"
+#include "lima_pmu.h"
+#include "lima_l2_cache.h"
+#include "lima_dlbu.h"
+#include "lima_bcast.h"
+#include "lima_vm.h"
+
+struct lima_ip_desc {
+	char *name;
+	char *irq_name;
+	bool must_have[lima_gpu_num];
+	int offset[lima_gpu_num];
+
+	int (*init)(struct lima_ip *);
+	void (*fini)(struct lima_ip *);
+};
+
+#define LIMA_IP_DESC(ipname, mst0, mst1, off0, off1, func, irq) \
+	[lima_ip_##ipname] = { \
+		.name = #ipname, \
+		.irq_name = irq, \
+		.must_have = { \
+			[lima_gpu_mali400] = mst0, \
+			[lima_gpu_mali450] = mst1, \
+		}, \
+		.offset = { \
+			[lima_gpu_mali400] = off0, \
+			[lima_gpu_mali450] = off1, \
+		}, \
+		.init = lima_##func##_init, \
+		.fini = lima_##func##_fini, \
+	}
+
+static struct lima_ip_desc lima_ip_desc[lima_ip_num] = {
+	LIMA_IP_DESC(pmu,         false, false, 0x02000, 0x02000, pmu,      "pmu"),
+	LIMA_IP_DESC(l2_cache0,   true,  true,  0x01000, 0x10000, l2_cache, NULL),
+	LIMA_IP_DESC(l2_cache1,   false, true,  -1,      0x01000, l2_cache, NULL),
+	LIMA_IP_DESC(l2_cache2,   false, false, -1,      0x11000, l2_cache, NULL),
+	LIMA_IP_DESC(gp,          true,  true,  0x00000, 0x00000, gp,       "gp"),
+	LIMA_IP_DESC(pp0,         true,  true,  0x08000, 0x08000, pp,       "pp0"),
+	LIMA_IP_DESC(pp1,         false, false, 0x0A000, 0x0A000, pp,       "pp1"),
+	LIMA_IP_DESC(pp2,         false, false, 0x0C000, 0x0C000, pp,       "pp2"),
+	LIMA_IP_DESC(pp3,         false, false, 0x0E000, 0x0E000, pp,       "pp3"),
+	LIMA_IP_DESC(pp4,         false, false, -1,      0x28000, pp,       "pp4"),
+	LIMA_IP_DESC(pp5,         false, false, -1,      0x2A000, pp,       "pp5"),
+	LIMA_IP_DESC(pp6,         false, false, -1,      0x2C000, pp,       "pp6"),
+	LIMA_IP_DESC(pp7,         false, false, -1,      0x2E000, pp,       "pp7"),
+	LIMA_IP_DESC(gpmmu,       true,  true,  0x03000, 0x03000, mmu,      "gpmmu"),
+	LIMA_IP_DESC(ppmmu0,      true,  true,  0x04000, 0x04000, mmu,      "ppmmu0"),
+	LIMA_IP_DESC(ppmmu1,      false, false, 0x05000, 0x05000, mmu,      "ppmmu1"),
+	LIMA_IP_DESC(ppmmu2,      false, false, 0x06000, 0x06000, mmu,      "ppmmu2"),
+	LIMA_IP_DESC(ppmmu3,      false, false, 0x07000, 0x07000, mmu,      "ppmmu3"),
+	LIMA_IP_DESC(ppmmu4,      false, false, -1,      0x1C000, mmu,      "ppmmu4"),
+	LIMA_IP_DESC(ppmmu5,      false, false, -1,      0x1D000, mmu,      "ppmmu5"),
+	LIMA_IP_DESC(ppmmu6,      false, false, -1,      0x1E000, mmu,      "ppmmu6"),
+	LIMA_IP_DESC(ppmmu7,      false, false, -1,      0x1F000, mmu,      "ppmmu7"),
+	LIMA_IP_DESC(dlbu,        false, true,  -1,      0x14000, dlbu,     NULL),
+	LIMA_IP_DESC(bcast,       false, true,  -1,      0x13000, bcast,    NULL),
+	LIMA_IP_DESC(pp_bcast,    false, true,  -1,      0x16000, pp_bcast, "pp"),
+	LIMA_IP_DESC(ppmmu_bcast, false, true,  -1,      0x15000, mmu,      NULL),
+};
+
+const char *lima_ip_name(struct lima_ip *ip)
+{
+	return lima_ip_desc[ip->id].name;
+}
+
+static int lima_clk_init(struct lima_device *dev)
+{
+	int err;
+	unsigned long bus_rate, gpu_rate;
+
+	dev->clk_bus = devm_clk_get(dev->dev, "bus");
+	if (IS_ERR(dev->clk_bus)) {
+		dev_err(dev->dev, "get bus clk failed %ld\n", PTR_ERR(dev->clk_bus));
+		return PTR_ERR(dev->clk_bus);
+	}
+
+	dev->clk_gpu = devm_clk_get(dev->dev, "core");
+	if (IS_ERR(dev->clk_gpu)) {
+		dev_err(dev->dev, "get core clk failed %ld\n", PTR_ERR(dev->clk_gpu));
+		return PTR_ERR(dev->clk_gpu);
+	}
+
+	bus_rate = clk_get_rate(dev->clk_bus);
+	dev_info(dev->dev, "bus rate = %lu\n", bus_rate);
+
+	gpu_rate = clk_get_rate(dev->clk_gpu);
+	dev_info(dev->dev, "mod rate = %lu", gpu_rate);
+
+	if ((err = clk_prepare_enable(dev->clk_bus)))
+		return err;
+	if ((err = clk_prepare_enable(dev->clk_gpu)))
+		goto error_out0;
+
+	dev->reset = devm_reset_control_get_optional(dev->dev, NULL);
+	if (IS_ERR(dev->reset)) {
+		err = PTR_ERR(dev->reset);
+		goto error_out1;
+	} else if (dev->reset != NULL) {
+		if ((err = reset_control_deassert(dev->reset)))
+			goto error_out1;
+	}
+
+	return 0;
+
+error_out1:
+	clk_disable_unprepare(dev->clk_gpu);
+error_out0:
+	clk_disable_unprepare(dev->clk_bus);
+	return err;
+}
+
+static void lima_clk_fini(struct lima_device *dev)
+{
+	if (dev->reset != NULL)
+		reset_control_assert(dev->reset);
+	clk_disable_unprepare(dev->clk_gpu);
+	clk_disable_unprepare(dev->clk_bus);
+}
+
+static int lima_regulator_init(struct lima_device *dev)
+{
+	int ret;
+	dev->regulator = devm_regulator_get_optional(dev->dev, "mali");
+	if (IS_ERR(dev->regulator)) {
+		ret = PTR_ERR(dev->regulator);
+		dev->regulator = NULL;
+		if (ret == -ENODEV)
+			return 0;
+		dev_err(dev->dev, "failed to get regulator: %ld\n", PTR_ERR(dev->regulator));
+		return ret;
+	}
+
+	ret = regulator_enable(dev->regulator);
+	if (ret < 0) {
+		dev_err(dev->dev, "failed to enable regulator: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void lima_regulator_fini(struct lima_device *dev)
+{
+	if (dev->regulator)
+		regulator_disable(dev->regulator);
+}
+
+static int lima_init_ip(struct lima_device *dev, int index)
+{
+	struct lima_ip_desc *desc = lima_ip_desc + index;
+	struct lima_ip *ip = dev->ip + index;
+	int offset = desc->offset[dev->id];
+	bool must = desc->must_have[dev->id];
+	int err;
+
+	if (offset < 0)
+		return 0;
+
+	ip->dev = dev;
+	ip->id = index;
+	ip->iomem = dev->iomem + offset;
+	if (desc->irq_name) {
+		err = platform_get_irq_byname(dev->pdev, desc->irq_name);
+		if (err < 0)
+			goto out;
+		ip->irq = err;
+	}
+
+	err = desc->init(ip);
+	if (!err) {
+		ip->present = true;
+		return 0;
+	}
+
+out:
+	return must ? err : 0;
+}
+
+static void lima_fini_ip(struct lima_device *ldev, int index)
+{
+	struct lima_ip_desc *desc = lima_ip_desc + index;
+	struct lima_ip *ip = ldev->ip + index;
+
+	if (ip->present)
+		desc->fini(ip);
+}
+
+static int lima_init_gp_pipe(struct lima_device *dev)
+{
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+	int err;
+
+	if ((err = lima_sched_pipe_init(pipe, "gp")))
+		return err;
+
+	pipe->l2_cache[pipe->num_l2_cache++] = dev->ip + lima_ip_l2_cache0;
+	pipe->mmu[pipe->num_mmu++] = dev->ip + lima_ip_gpmmu;
+	pipe->processor[pipe->num_processor++] = dev->ip + lima_ip_gp;
+
+	if ((err = lima_gp_pipe_init(dev))) {
+		lima_sched_pipe_fini(pipe);
+		return err;
+	}
+
+	return 0;
+}
+
+static void lima_fini_gp_pipe(struct lima_device *dev)
+{
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+
+	lima_gp_pipe_fini(dev);
+	lima_sched_pipe_fini(pipe);
+}
+
+static int lima_init_pp_pipe(struct lima_device *dev)
+{
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
+	int err, i;
+
+	if ((err = lima_sched_pipe_init(pipe, "pp")))
+		return err;
+
+	for (i = 0; i < LIMA_SCHED_PIPE_MAX_PROCESSOR; i++) {
+		struct lima_ip *pp = dev->ip + lima_ip_pp0 + i;
+		struct lima_ip *ppmmu = dev->ip + lima_ip_ppmmu0 + i;
+		struct lima_ip *l2_cache;
+
+		if (dev->id == lima_gpu_mali400)
+			l2_cache = dev->ip + lima_ip_l2_cache0;
+		else
+			l2_cache = dev->ip + lima_ip_l2_cache1 + (i >> 2);
+
+		if (pp->present && ppmmu->present && l2_cache->present) {
+			pipe->mmu[pipe->num_mmu++] = ppmmu;
+			pipe->processor[pipe->num_processor++] = pp;
+			if (!pipe->l2_cache[i >> 2])
+				pipe->l2_cache[pipe->num_l2_cache++] = l2_cache;
+		}
+	}
+
+	if (dev->ip[lima_ip_bcast].present) {
+		pipe->bcast_processor = dev->ip + lima_ip_pp_bcast;
+		pipe->bcast_mmu = dev->ip + lima_ip_ppmmu_bcast;
+	}
+
+	if ((err = lima_pp_pipe_init(dev))) {
+		lima_sched_pipe_fini(pipe);
+		return err;
+	}
+
+	return 0;
+}
+
+static void lima_fini_pp_pipe(struct lima_device *dev)
+{
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
+
+	lima_pp_pipe_fini(dev);
+	lima_sched_pipe_fini(pipe);
+}
+
+int lima_device_init(struct lima_device *ldev)
+{
+	int err, i;
+	struct resource *res;
+
+	dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
+
+	err = lima_clk_init(ldev);
+	if (err) {
+		dev_err(ldev->dev, "clk init fail %d\n", err);
+		return err;
+	}
+
+	if ((err = lima_regulator_init(ldev))) {
+		dev_err(ldev->dev, "regulator init fail %d\n", err);
+		goto err_out0;
+	}
+
+	err = lima_ttm_init(ldev);
+	if (err)
+		goto err_out1;
+
+	ldev->empty_vm = lima_vm_create(ldev);
+	if (!ldev->empty_vm) {
+		err = -ENOMEM;
+		goto err_out2;
+	}
+
+	ldev->va_start = 0;
+	if (ldev->id == lima_gpu_mali450) {
+		ldev->va_end = LIMA_VA_RESERVE_START;
+		ldev->dlbu_cpu = dma_alloc_wc(
+			ldev->dev, LIMA_PAGE_SIZE,
+			&ldev->dlbu_dma, GFP_KERNEL);
+		if (!ldev->dlbu_cpu) {
+			err = -ENOMEM;
+			goto err_out3;
+		}
+	}
+	else
+		ldev->va_end = LIMA_VA_RESERVE_END;
+
+	res = platform_get_resource(ldev->pdev, IORESOURCE_MEM, 0);
+	ldev->iomem = devm_ioremap_resource(ldev->dev, res);
+	if (IS_ERR(ldev->iomem)) {
+		dev_err(ldev->dev, "fail to ioremap iomem\n");
+	        err = PTR_ERR(ldev->iomem);
+		goto err_out4;
+	}
+
+	for (i = 0; i < lima_ip_num; i++) {
+		err = lima_init_ip(ldev, i);
+		if (err)
+			goto err_out5;
+	}
+
+	err = lima_init_gp_pipe(ldev);
+	if (err)
+		goto err_out5;
+
+	err = lima_init_pp_pipe(ldev);
+	if (err)
+		goto err_out6;
+
+	if (ldev->id == lima_gpu_mali450) {
+		lima_dlbu_enable(ldev);
+		lima_bcast_enable(ldev);
+	}
+
+	return 0;
+
+err_out6:
+	lima_fini_gp_pipe(ldev);
+err_out5:
+	while (--i >= 0)
+		lima_fini_ip(ldev, i);
+err_out4:
+	if (ldev->dlbu_cpu)
+		dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
+			    ldev->dlbu_cpu, ldev->dlbu_dma);
+err_out3:
+	lima_vm_put(ldev->empty_vm);
+err_out2:
+	lima_ttm_fini(ldev);
+err_out1:
+	lima_regulator_fini(ldev);
+err_out0:
+	lima_clk_fini(ldev);
+	return err;
+}
+
+void lima_device_fini(struct lima_device *ldev)
+{
+	int i;
+
+	lima_fini_pp_pipe(ldev);
+	lima_fini_gp_pipe(ldev);
+
+	for (i = lima_ip_num - 1; i >= 0; i--)
+		lima_fini_ip(ldev, i);
+
+	if (ldev->dlbu_cpu)
+		dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
+			    ldev->dlbu_cpu, ldev->dlbu_dma);
+
+	lima_vm_put(ldev->empty_vm);
+
+	lima_ttm_fini(ldev);
+
+	lima_regulator_fini(ldev);
+
+	lima_clk_fini(ldev);
+}

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new file mode 100644
index 000000000000..255a64e9f265
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/of.h>
+#include <linux/io.h>
+#include <linux/device.h>
+
+#include "lima_device.h"
+#include "lima_pmu.h"
+#include "lima_regs.h"
+
+#define pmu_write(reg, data) writel(data, ip->iomem + LIMA_PMU_##reg)
+#define pmu_read(reg) readl(ip->iomem + LIMA_PMU_##reg)
+
+static int lima_pmu_wait_cmd(struct lima_ip *ip)
+{
+	struct lima_device *dev = ip->dev;
+	u32 stat, timeout;
+
+	for (timeout = 1000000; timeout > 0; timeout--) {
+		stat = pmu_read(INT_RAWSTAT);
+		if (stat & LIMA_PMU_INT_CMD_MASK)
+			break;
+	}
+
+	if (!timeout) {
+		dev_err(dev->dev, "timeout wait pmd cmd\n");
+		return -ETIMEDOUT;
+	}
+
+	pmu_write(INT_CLEAR, LIMA_PMU_INT_CMD_MASK);
+	return 0;
+}
+
+int lima_pmu_init(struct lima_ip *ip)
+{
+	int err;
+	u32 stat;
+	struct lima_device *dev = ip->dev;
+	struct device_node *np = dev->dev->of_node;
+
+	/* If this value is too low, when in high GPU clk freq,
+	 * GPU will be in unstable state. */
+	if (of_property_read_u32(np, "switch-delay", &ip->data.switch_delay))
+		ip->data.switch_delay = 0xff;
+
+	pmu_write(INT_MASK, 0);
+	pmu_write(SW_DELAY, ip->data.switch_delay);
+
+	/* status reg 1=off 0=on */
+	stat = pmu_read(STATUS);
+
+	/* power up all ip */
+	if (stat) {
+		pmu_write(POWER_UP, stat);
+		err = lima_pmu_wait_cmd(ip);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+void lima_pmu_fini(struct lima_ip *ip)
+{
+
+}

new file mode 100644
index 000000000000..fb68a7059a37
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+#ifndef __LIMA_PMU_H__
+#define __LIMA_PMU_H__
+
+struct lima_ip;
+
+int lima_pmu_init(struct lima_ip *ip);
+void lima_pmu_fini(struct lima_ip *ip);
+
+#endif

new file mode 100644
index 000000000000..a9b85de5c51a
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/io.h>
+#include <linux/device.h>
+
+#include "lima_device.h"
+#include "lima_l2_cache.h"
+#include "lima_regs.h"
+
+#define l2_cache_write(reg, data) writel(data, ip->iomem + LIMA_L2_CACHE_##reg)
+#define l2_cache_read(reg) readl(ip->iomem + LIMA_L2_CACHE_##reg)
+
+static int lima_l2_cache_wait_idle(struct lima_ip *ip)
+{
+	int timeout;
+	struct lima_device *dev = ip->dev;
+
+	for (timeout = 100000; timeout > 0; timeout--) {
+	    if (!(l2_cache_read(STATUS) & LIMA_L2_CACHE_STATUS_COMMAND_BUSY))
+		break;
+	}
+	if (!timeout) {
+	    dev_err(dev->dev, "l2 cache wait command timeout\n");
+	    return -ETIMEDOUT;
+	}
+	return 0;
+}
+
+int lima_l2_cache_flush(struct lima_ip *ip)
+{
+	int ret;
+
+	spin_lock(&ip->data.lock);
+	l2_cache_write(COMMAND, LIMA_L2_CACHE_COMMAND_CLEAR_ALL);
+	ret = lima_l2_cache_wait_idle(ip);
+	spin_unlock(&ip->data.lock);
+	return ret;
+}
+
+int lima_l2_cache_init(struct lima_ip *ip)
+{
+	int i, err;
+	u32 size;
+	struct lima_device *dev = ip->dev;
+
+	/* l2_cache2 only exists when one of PP4-7 present */
+	if (ip->id == lima_ip_l2_cache2) {
+		for (i = lima_ip_pp4; i <= lima_ip_pp7; i++) {
+			if (dev->ip[i].present)
+				break;
+		}
+		if (i > lima_ip_pp7)
+			return -ENODEV;
+	}
+
+	spin_lock_init(&ip->data.lock);
+
+	size = l2_cache_read(SIZE);
+	dev_info(dev->dev, "l2 cache %uK, %u-way, %ubyte cache line, %ubit external bus\n",
+		 1 << (((size >> 16) & 0xff) - 10),
+		 1 << ((size >> 8) & 0xff),
+		 1 << (size & 0xff),
+		 1 << ((size >> 24) & 0xff));
+
+	err = lima_l2_cache_flush(ip);
+	if (err)
+		return err;
+
+	l2_cache_write(ENABLE, LIMA_L2_CACHE_ENABLE_ACCESS | LIMA_L2_CACHE_ENABLE_READ_ALLOCATE);
+	l2_cache_write(MAX_READS, 0x1c);
+
+	return 0;
+}
+
+void lima_l2_cache_fini(struct lima_ip *ip)
+{
+
+}

new file mode 100644
index 000000000000..4a35725bf38d
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+#ifndef __LIMA_L2_CACHE_H__
+#define __LIMA_L2_CACHE_H__
+
+struct lima_ip;
+
+int lima_l2_cache_init(struct lima_ip *ip);
+void lima_l2_cache_fini(struct lima_ip *ip);
+
+int lima_l2_cache_flush(struct lima_ip *ip);
+
+#endif

new file mode 100644
index 000000000000..8fb49986418a
@@ -0,0 +1,293 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/interrupt.h>
+#include <linux/io.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include <drm/lima_drm.h>
+
+#include "lima_device.h"
+#include "lima_gp.h"
+#include "lima_regs.h"
+
+#define gp_write(reg, data) writel(data, ip->iomem + LIMA_GP_##reg)
+#define gp_read(reg) readl(ip->iomem + LIMA_GP_##reg)
+
+static irqreturn_t lima_gp_irq_handler(int irq, void *data)
+{
+	struct lima_ip *ip = data;
+	struct lima_device *dev = ip->dev;
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+	u32 state = gp_read(INT_STAT);
+	u32 status = gp_read(STATUS);
+	bool done = false;
+
+	/* for shared irq case */
+	if (!state)
+		return IRQ_NONE;
+
+	if (state & LIMA_GP_IRQ_MASK_ERROR) {
+		dev_err(dev->dev, "gp error irq state=%x status=%x\n",
+			state, status);
+
+		/* mask all interrupts before hard reset */
+		gp_write(INT_MASK, 0);
+
+		pipe->error = true;
+		done = true;
+	}
+	else {
+		bool valid = state & (LIMA_GP_IRQ_VS_END_CMD_LST |
+				      LIMA_GP_IRQ_PLBU_END_CMD_LST);
+		bool active = status & (LIMA_GP_STATUS_VS_ACTIVE |
+					LIMA_GP_STATUS_PLBU_ACTIVE);
+		done = valid && !active;
+	}
+
+	gp_write(INT_CLEAR, state);
+
+	if (done)
+		lima_sched_pipe_task_done(pipe);
+
+	return IRQ_HANDLED;
+}
+
+static void lima_gp_soft_reset_async(struct lima_ip *ip)
+{
+	if (ip->data.async_reset)
+		return;
+
+	gp_write(INT_MASK, 0);
+	gp_write(INT_CLEAR, LIMA_GP_IRQ_RESET_COMPLETED);
+	gp_write(CMD, LIMA_GP_CMD_SOFT_RESET);
+	ip->data.async_reset = true;
+}
+
+static int lima_gp_soft_reset_async_wait(struct lima_ip *ip)
+{
+	struct lima_device *dev = ip->dev;
+	int timeout;
+
+	if (!ip->data.async_reset)
+		return 0;
+
+	for (timeout = 1000; timeout > 0; timeout--) {
+		if (gp_read(INT_RAWSTAT) & LIMA_GP_IRQ_RESET_COMPLETED)
+			break;
+	}
+	if (!timeout) {
+		dev_err(dev->dev, "gp soft reset time out\n");
+		return -ETIMEDOUT;
+	}
+
+	gp_write(INT_CLEAR, LIMA_GP_IRQ_MASK_ALL);
+	gp_write(INT_MASK, LIMA_GP_IRQ_MASK_USED);
+
+	ip->data.async_reset = false;
+	return 0;
+}
+
+static int lima_gp_task_validate(struct lima_sched_pipe *pipe,
+				 struct lima_sched_task *task)
+{
+	struct drm_lima_gp_frame *frame = task->frame;
+	u32 *f = frame->frame;
+	(void)pipe;
+
+	if (f[LIMA_GP_VSCL_START_ADDR >> 2] >
+	    f[LIMA_GP_VSCL_END_ADDR >> 2] ||
+	    f[LIMA_GP_PLBUCL_START_ADDR >> 2] >
+	    f[LIMA_GP_PLBUCL_END_ADDR >> 2] ||
+	    f[LIMA_GP_PLBU_ALLOC_START_ADDR >> 2] >
+	    f[LIMA_GP_PLBU_ALLOC_END_ADDR >> 2])
+		return -EINVAL;
+
+	if (f[LIMA_GP_VSCL_START_ADDR >> 2] ==
+	    f[LIMA_GP_VSCL_END_ADDR >> 2] &&
+	    f[LIMA_GP_PLBUCL_START_ADDR >> 2] ==
+	    f[LIMA_GP_PLBUCL_END_ADDR >> 2])
+		return -EINVAL;
+
+	return 0;
+}
+
+static void lima_gp_task_run(struct lima_sched_pipe *pipe,
+			     struct lima_sched_task *task)
+{
+	struct lima_ip *ip = pipe->processor[0];
+	struct drm_lima_gp_frame *frame = task->frame;
+	u32 *f = frame->frame;
+	u32 cmd = 0;
+	int i;
+
+	if (f[LIMA_GP_VSCL_START_ADDR >> 2] !=
+	    f[LIMA_GP_VSCL_END_ADDR >> 2])
+		cmd |= LIMA_GP_CMD_START_VS;
+	if (f[LIMA_GP_PLBUCL_START_ADDR >> 2] !=
+	    f[LIMA_GP_PLBUCL_END_ADDR >> 2])
+		cmd |= LIMA_GP_CMD_START_PLBU;
+
+	/* before any hw ops, wait last success task async soft reset */
+	lima_gp_soft_reset_async_wait(ip);
+
+	for (i = 0; i < LIMA_GP_FRAME_REG_NUM; i++)
+		writel(f[i], ip->iomem + LIMA_GP_VSCL_START_ADDR + i * 4);
+
+	gp_write(CMD, LIMA_GP_CMD_UPDATE_PLBU_ALLOC);
+	gp_write(CMD, cmd);
+}
+
+static int lima_gp_hard_reset(struct lima_ip *ip)
+{
+	struct lima_device *dev = ip->dev;
+	int timeout;
+
+	gp_write(PERF_CNT_0_LIMIT, 0xC0FFE000);
+	gp_write(INT_MASK, 0);
+	gp_write(CMD, LIMA_GP_CMD_RESET);
+	for (timeout = 1000; timeout > 0; timeout--) {
+		gp_write(PERF_CNT_0_LIMIT, 0xC01A0000);
+		if (gp_read(PERF_CNT_0_LIMIT) == 0xC01A0000)
+			break;
+	}
+	if (!timeout) {
+		dev_err(dev->dev, "gp hard reset timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	gp_write(PERF_CNT_0_LIMIT, 0);
+	gp_write(INT_CLEAR, LIMA_GP_IRQ_MASK_ALL);
+	gp_write(INT_MASK, LIMA_GP_IRQ_MASK_USED);
+	return 0;
+}
+
+static void lima_gp_task_fini(struct lima_sched_pipe *pipe)
+{
+	lima_gp_soft_reset_async(pipe->processor[0]);
+}
+
+static void lima_gp_task_error(struct lima_sched_pipe *pipe)
+{
+	lima_gp_hard_reset(pipe->processor[0]);
+}
+
+static void lima_gp_task_mmu_error(struct lima_sched_pipe *pipe)
+{
+	lima_sched_pipe_task_done(pipe);
+}
+
+static void lima_gp_print_version(struct lima_ip *ip)
+{
+	u32 version, major, minor;
+	char *name;
+
+	version = gp_read(VERSION);
+	major = (version >> 8) & 0xFF;
+	minor = version & 0xFF;
+	switch (version >> 16) {
+	case 0xA07:
+	    name = "mali200";
+		break;
+	case 0xC07:
+		name = "mali300";
+		break;
+	case 0xB07:
+		name = "mali400";
+		break;
+	case 0xD07:
+		name = "mali450";
+		break;
+	default:
+		name = "unknow";
+		break;
+	}
+	dev_info(ip->dev->dev, "%s - %s version major %d minor %d\n",
+		 lima_ip_name(ip), name, major, minor);
+}
+
+static struct kmem_cache *lima_gp_task_slab = NULL;
+static int lima_gp_task_slab_refcnt = 0;
+
+int lima_gp_init(struct lima_ip *ip)
+{
+	struct lima_device *dev = ip->dev;
+	int err;
+
+	lima_gp_print_version(ip);
+
+	ip->data.async_reset = false;
+	lima_gp_soft_reset_async(ip);
+	err = lima_gp_soft_reset_async_wait(ip);
+	if (err)
+		return err;
+
+	err = devm_request_irq(dev->dev, ip->irq, lima_gp_irq_handler, 0,
+			       lima_ip_name(ip), ip);
+	if (err) {
+		dev_err(dev->dev, "gp %s fail to request irq\n",
+			lima_ip_name(ip));
+		return err;
+	}
+
+	return 0;
+}
+
+void lima_gp_fini(struct lima_ip *ip)
+{
+
+}
+
+int lima_gp_pipe_init(struct lima_device *dev)
+{
+	int frame_size = sizeof(struct drm_lima_gp_frame);
+	struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+
+	if (!lima_gp_task_slab) {
+		lima_gp_task_slab = kmem_cache_create(
+			"lima_gp_task", sizeof(struct lima_sched_task) + frame_size,
+			0, SLAB_HWCACHE_ALIGN, NULL);
+		if (!lima_gp_task_slab)
+			return -ENOMEM;
+	}
+	lima_gp_task_slab_refcnt++;
+
+	pipe->frame_size = frame_size;
+	pipe->task_slab = lima_gp_task_slab;
+
+	pipe->task_validate = lima_gp_task_validate;
+	pipe->task_run = lima_gp_task_run;
+	pipe->task_fini = lima_gp_task_fini;
+	pipe->task_error = lima_gp_task_error;
+	pipe->task_mmu_error = lima_gp_task_mmu_error;
+
+	return 0;
+}
+
+void lima_gp_pipe_fini(struct lima_device *dev)
+{
+	if (!--lima_gp_task_slab_refcnt) {
+		kmem_cache_destroy(lima_gp_task_slab);
+		lima_gp_task_slab = NULL;
+	}
+}