Merge tag 'drm-msm-next-2018-12-12' of git://people.freedesktop.org/~robclark/linux into drm-next

This time around, seeing some love for some older hw:

 - a2xx gpu support for apq8060 (hp touchpad) and imx5 (headless
   gpu-only mode)
 - a2xx gpummu support (a2xx was pre-iommu)
 - mdp4 display support for apq8060/touchpad

For display/dpu:

 - a big pile of continuing dpu fixes and cleanups

On the gpu side of things:

 - per-submit statistics and traceevents for better profiling
 - a6xx crashdump support
 - decouple get_iova() and page pinning.. so we can unpin from
   physical memory inactive bo's while using softpin to lower
   cpu overhead
 - new interface to set debug names on GEM BOs and debugfs
   output improvements
 - additional submit flag to indicate buffers that are used
   to dump (so $debugfs/rd cmdstream dumping is useful with
   softpin + state-objects)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvVvLPD9_Z4kyfGe98Y--byj6HbxHivEYSgF7Rq7=bFnw@mail.gmail.com

1 files changed, 492 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/adreno/a2xx_gpu.c b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
new file mode 100644
index 000000000000..1f83bc18d500
--- /dev/null
+++ b/drivers/gpu/drm/msm/adreno/a2xx_gpu.c
@@ -0,0 +1,492 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 The Linux Foundation. All rights reserved. */
+
+#include "a2xx_gpu.h"
+#include "msm_gem.h"
+#include "msm_mmu.h"
+
+extern bool hang_debug;
+
+static void a2xx_dump(struct msm_gpu *gpu);
+static bool a2xx_idle(struct msm_gpu *gpu);
+
+static bool a2xx_me_init(struct msm_gpu *gpu)
+{
+	struct msm_ringbuffer *ring = gpu->rb[0];
+
+	OUT_PKT3(ring, CP_ME_INIT, 18);
+
+	/* All fields present (bits 9:0) */
+	OUT_RING(ring, 0x000003ff);
+	/* Disable/Enable Real-Time Stream processing (present but ignored) */
+	OUT_RING(ring, 0x00000000);
+	/* Enable (2D <-> 3D) implicit synchronization (present but ignored) */
+	OUT_RING(ring, 0x00000000);
+
+	OUT_RING(ring, REG_A2XX_RB_SURFACE_INFO - 0x2000);
+	OUT_RING(ring, REG_A2XX_PA_SC_WINDOW_OFFSET - 0x2000);
+	OUT_RING(ring, REG_A2XX_VGT_MAX_VTX_INDX - 0x2000);
+	OUT_RING(ring, REG_A2XX_SQ_PROGRAM_CNTL - 0x2000);
+	OUT_RING(ring, REG_A2XX_RB_DEPTHCONTROL - 0x2000);
+	OUT_RING(ring, REG_A2XX_PA_SU_POINT_SIZE - 0x2000);
+	OUT_RING(ring, REG_A2XX_PA_SC_LINE_CNTL - 0x2000);
+	OUT_RING(ring, REG_A2XX_PA_SU_POLY_OFFSET_FRONT_SCALE - 0x2000);
+
+	/* Vertex and Pixel Shader Start Addresses in instructions
+	 * (3 DWORDS per instruction) */
+	OUT_RING(ring, 0x80000180);
+	/* Maximum Contexts */
+	OUT_RING(ring, 0x00000001);
+	/* Write Confirm Interval and The CP will wait the
+	 * wait_interval * 16 clocks between polling  */
+	OUT_RING(ring, 0x00000000);
+	/* NQ and External Memory Swap */
+	OUT_RING(ring, 0x00000000);
+	/* protected mode error checking (0x1f2 is REG_AXXX_CP_INT_CNTL) */
+	OUT_RING(ring, 0x200001f2);
+	/* Disable header dumping and Header dump address */
+	OUT_RING(ring, 0x00000000);
+	/* Header dump size */
+	OUT_RING(ring, 0x00000000);
+
+	/* enable protected mode */
+	OUT_PKT3(ring, CP_SET_PROTECTED_MODE, 1);
+	OUT_RING(ring, 1);
+
+	gpu->funcs->flush(gpu, ring);
+	return a2xx_idle(gpu);
+}
+
+static int a2xx_hw_init(struct msm_gpu *gpu)
+{
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	dma_addr_t pt_base, tran_error;
+	uint32_t *ptr, len;
+	int i, ret;
+
+	msm_gpummu_params(gpu->aspace->mmu, &pt_base, &tran_error);
+
+	DBG("%s", gpu->name);
+
+	/* halt ME to avoid ucode upload issues on a20x */
+	gpu_write(gpu, REG_AXXX_CP_ME_CNTL, AXXX_CP_ME_CNTL_HALT);
+
+	gpu_write(gpu, REG_A2XX_RBBM_PM_OVERRIDE1, 0xfffffffe);
+	gpu_write(gpu, REG_A2XX_RBBM_PM_OVERRIDE2, 0xffffffff);
+
+	/* note: kgsl uses 0x00000001 after first reset on a22x */
+	gpu_write(gpu, REG_A2XX_RBBM_SOFT_RESET, 0xffffffff);
+	msleep(30);
+	gpu_write(gpu, REG_A2XX_RBBM_SOFT_RESET, 0x00000000);
+
+	if (adreno_is_a225(adreno_gpu))
+		gpu_write(gpu, REG_A2XX_SQ_FLOW_CONTROL, 0x18000000);
+
+	/* note: kgsl uses 0x0000ffff for a20x */
+	gpu_write(gpu, REG_A2XX_RBBM_CNTL, 0x00004442);
+
+	/* MPU: physical range */
+	gpu_write(gpu, REG_A2XX_MH_MMU_MPU_BASE, 0x00000000);
+	gpu_write(gpu, REG_A2XX_MH_MMU_MPU_END, 0xfffff000);
+
+	gpu_write(gpu, REG_A2XX_MH_MMU_CONFIG, A2XX_MH_MMU_CONFIG_MMU_ENABLE |
+		A2XX_MH_MMU_CONFIG_RB_W_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_W_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_R0_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_R1_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_R2_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_R3_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_CP_R4_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_VGT_R0_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_VGT_R1_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_TC_R_CLNT_BEHAVIOR(BEH_TRAN_RNG) |
+		A2XX_MH_MMU_CONFIG_PA_W_CLNT_BEHAVIOR(BEH_TRAN_RNG));
+
+	/* same as parameters in adreno_gpu */
+	gpu_write(gpu, REG_A2XX_MH_MMU_VA_RANGE, SZ_16M |
+		A2XX_MH_MMU_VA_RANGE_NUM_64KB_REGIONS(0xfff));
+
+	gpu_write(gpu, REG_A2XX_MH_MMU_PT_BASE, pt_base);
+	gpu_write(gpu, REG_A2XX_MH_MMU_TRAN_ERROR, tran_error);
+
+	gpu_write(gpu, REG_A2XX_MH_MMU_INVALIDATE,
+		A2XX_MH_MMU_INVALIDATE_INVALIDATE_ALL |
+		A2XX_MH_MMU_INVALIDATE_INVALIDATE_TC);
+
+	gpu_write(gpu, REG_A2XX_MH_ARBITER_CONFIG,
+		A2XX_MH_ARBITER_CONFIG_SAME_PAGE_LIMIT(16) |
+		A2XX_MH_ARBITER_CONFIG_L1_ARB_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_L1_ARB_HOLD_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_PAGE_SIZE(1) |
+		A2XX_MH_ARBITER_CONFIG_TC_REORDER_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_TC_ARB_HOLD_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_IN_FLIGHT_LIMIT_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_IN_FLIGHT_LIMIT(8) |
+		A2XX_MH_ARBITER_CONFIG_CP_CLNT_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_VGT_CLNT_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_TC_CLNT_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_RB_CLNT_ENABLE |
+		A2XX_MH_ARBITER_CONFIG_PA_CLNT_ENABLE);
+	if (!adreno_is_a20x(adreno_gpu))
+		gpu_write(gpu, REG_A2XX_MH_CLNT_INTF_CTRL_CONFIG1, 0x00032f07);
+
+	gpu_write(gpu, REG_A2XX_SQ_VS_PROGRAM, 0x00000000);
+	gpu_write(gpu, REG_A2XX_SQ_PS_PROGRAM, 0x00000000);
+
+	gpu_write(gpu, REG_A2XX_RBBM_PM_OVERRIDE1, 0); /* 0x200 for msm8960? */
+	gpu_write(gpu, REG_A2XX_RBBM_PM_OVERRIDE2, 0); /* 0x80/0x1a0 for a22x? */
+
+	/* note: gsl doesn't set this */
+	gpu_write(gpu, REG_A2XX_RBBM_DEBUG, 0x00080000);
+
+	gpu_write(gpu, REG_A2XX_RBBM_INT_CNTL,
+		A2XX_RBBM_INT_CNTL_RDERR_INT_MASK);
+	gpu_write(gpu, REG_AXXX_CP_INT_CNTL,
+		AXXX_CP_INT_CNTL_T0_PACKET_IN_IB_MASK |
+		AXXX_CP_INT_CNTL_OPCODE_ERROR_MASK |
+		AXXX_CP_INT_CNTL_PROTECTED_MODE_ERROR_MASK |
+		AXXX_CP_INT_CNTL_RESERVED_BIT_ERROR_MASK |
+		AXXX_CP_INT_CNTL_IB_ERROR_MASK |
+		AXXX_CP_INT_CNTL_IB1_INT_MASK |
+		AXXX_CP_INT_CNTL_RB_INT_MASK);
+	gpu_write(gpu, REG_A2XX_SQ_INT_CNTL, 0);
+	gpu_write(gpu, REG_A2XX_MH_INTERRUPT_MASK,
+		A2XX_MH_INTERRUPT_MASK_AXI_READ_ERROR |
+		A2XX_MH_INTERRUPT_MASK_AXI_WRITE_ERROR |
+		A2XX_MH_INTERRUPT_MASK_MMU_PAGE_FAULT);
+
+	for (i = 3; i <= 5; i++)
+		if ((SZ_16K << i) == adreno_gpu->gmem)
+			break;
+	gpu_write(gpu, REG_A2XX_RB_EDRAM_INFO, i);
+
+	ret = adreno_hw_init(gpu);
+	if (ret)
+		return ret;
+
+	/* NOTE: PM4/micro-engine firmware registers look to be the same
+	 * for a2xx and a3xx.. we could possibly push that part down to
+	 * adreno_gpu base class.  Or push both PM4 and PFP but
+	 * parameterize the pfp ucode addr/data registers..
+	 */
+
+	/* Load PM4: */
+	ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PM4]->data);
+	len = adreno_gpu->fw[ADRENO_FW_PM4]->size / 4;
+	DBG("loading PM4 ucode version: %x", ptr[1]);
+
+	gpu_write(gpu, REG_AXXX_CP_DEBUG,
+			AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE);
+	gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]);
+
+	/* Load PFP: */
+	ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PFP]->data);
+	len = adreno_gpu->fw[ADRENO_FW_PFP]->size / 4;
+	DBG("loading PFP ucode version: %x", ptr[5]);
+
+	gpu_write(gpu, REG_A2XX_CP_PFP_UCODE_ADDR, 0);
+	for (i = 1; i < len; i++)
+		gpu_write(gpu, REG_A2XX_CP_PFP_UCODE_DATA, ptr[i]);
+
+	gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, 0x000C0804);
+
+	/* clear ME_HALT to start micro engine */
+	gpu_write(gpu, REG_AXXX_CP_ME_CNTL, 0);
+
+	return a2xx_me_init(gpu) ? 0 : -EINVAL;
+}
+
+static void a2xx_recover(struct msm_gpu *gpu)
+{
+	int i;
+
+	adreno_dump_info(gpu);
+
+	for (i = 0; i < 8; i++) {
+		printk("CP_SCRATCH_REG%d: %u\n", i,
+			gpu_read(gpu, REG_AXXX_CP_SCRATCH_REG0 + i));
+	}
+
+	/* dump registers before resetting gpu, if enabled: */
+	if (hang_debug)
+		a2xx_dump(gpu);
+
+	gpu_write(gpu, REG_A2XX_RBBM_SOFT_RESET, 1);
+	gpu_read(gpu, REG_A2XX_RBBM_SOFT_RESET);
+	gpu_write(gpu, REG_A2XX_RBBM_SOFT_RESET, 0);
+	adreno_recover(gpu);
+}
+
+static void a2xx_destroy(struct msm_gpu *gpu)
+{
+	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+	struct a2xx_gpu *a2xx_gpu = to_a2xx_gpu(adreno_gpu);
+
+	DBG("%s", gpu->name);
+
+	adreno_gpu_cleanup(adreno_gpu);
+
+	kfree(a2xx_gpu);
+}
+
+static bool a2xx_idle(struct msm_gpu *gpu)
+{
+	/* wait for ringbuffer to drain: */
+	if (!adreno_idle(gpu, gpu->rb[0]))
+		return false;
+
+	/* then wait for GPU to finish: */
+	if (spin_until(!(gpu_read(gpu, REG_A2XX_RBBM_STATUS) &
+			A2XX_RBBM_STATUS_GUI_ACTIVE))) {
+		DRM_ERROR("%s: timeout waiting for GPU to idle!\n", gpu->name);
+
+		/* TODO maybe we need to reset GPU here to recover from hang? */
+		return false;
+	}
+
+	return true;
+}
+
+static irqreturn_t a2xx_irq(struct msm_gpu *gpu)
+{
+	uint32_t mstatus, status;
+
+	mstatus = gpu_read(gpu, REG_A2XX_MASTER_INT_SIGNAL);
+
+	if (mstatus & A2XX_MASTER_INT_SIGNAL_MH_INT_STAT) {
+		status = gpu_read(gpu, REG_A2XX_MH_INTERRUPT_STATUS);
+
+		dev_warn(gpu->dev->dev, "MH_INT: %08X\n", status);
+		dev_warn(gpu->dev->dev, "MMU_PAGE_FAULT: %08X\n",
+			gpu_read(gpu, REG_A2XX_MH_MMU_PAGE_FAULT));
+
+		gpu_write(gpu, REG_A2XX_MH_INTERRUPT_CLEAR, status);
+	}
+
+	if (mstatus & A2XX_MASTER_INT_SIGNAL_CP_INT_STAT) {
+		status = gpu_read(gpu, REG_AXXX_CP_INT_STATUS);
+
+		/* only RB_INT is expected */
+		if (status & ~AXXX_CP_INT_CNTL_RB_INT_MASK)
+			dev_warn(gpu->dev->dev, "CP_INT: %08X\n", status);
+
+		gpu_write(gpu, REG_AXXX_CP_INT_ACK, status);
+	}
+
+	if (mstatus & A2XX_MASTER_INT_SIGNAL_RBBM_INT_STAT) {
+		status = gpu_read(gpu, REG_A2XX_RBBM_INT_STATUS);
+
+		dev_warn(gpu->dev->dev, "RBBM_INT: %08X\n", status);
+
+		gpu_write(gpu, REG_A2XX_RBBM_INT_ACK, status);
+	}
+
+	msm_gpu_retire(gpu);
+
+	return IRQ_HANDLED;
+}
+
+static const unsigned int a200_registers[] = {
+	0x0000, 0x0002, 0x0004, 0x000B, 0x003B, 0x003D, 0x0040, 0x0044,
+	0x0046, 0x0047, 0x01C0, 0x01C1, 0x01C3, 0x01C8, 0x01D5, 0x01D9,
+	0x01DC, 0x01DD, 0x01EA, 0x01EA, 0x01EE, 0x01F3, 0x01F6, 0x01F7,
+	0x01FC, 0x01FF, 0x0391, 0x0392, 0x039B, 0x039E, 0x03B2, 0x03B5,
+	0x03B7, 0x03B7, 0x03F8, 0x03FB, 0x0440, 0x0440, 0x0443, 0x0444,
+	0x044B, 0x044B, 0x044D, 0x044F, 0x0452, 0x0452, 0x0454, 0x045B,
+	0x047F, 0x047F, 0x0578, 0x0587, 0x05C9, 0x05C9, 0x05D0, 0x05D0,
+	0x0601, 0x0604, 0x0606, 0x0609, 0x060B, 0x060E, 0x0613, 0x0614,
+	0x0A29, 0x0A2B, 0x0A2F, 0x0A31, 0x0A40, 0x0A43, 0x0A45, 0x0A45,
+	0x0A4E, 0x0A4F, 0x0C2C, 0x0C2C, 0x0C30, 0x0C30, 0x0C38, 0x0C3C,
+	0x0C40, 0x0C40, 0x0C44, 0x0C44, 0x0C80, 0x0C86, 0x0C88, 0x0C94,
+	0x0C99, 0x0C9A, 0x0CA4, 0x0CA5, 0x0D00, 0x0D03, 0x0D06, 0x0D06,
+	0x0D08, 0x0D0B, 0x0D34, 0x0D35, 0x0DAE, 0x0DC1, 0x0DC8, 0x0DD4,
+	0x0DD8, 0x0DD9, 0x0E00, 0x0E00, 0x0E02, 0x0E04, 0x0E17, 0x0E1E,
+	0x0EC0, 0x0EC9, 0x0ECB, 0x0ECC, 0x0ED0, 0x0ED0, 0x0ED4, 0x0ED7,
+	0x0EE0, 0x0EE2, 0x0F01, 0x0F02, 0x0F0C, 0x0F0C, 0x0F0E, 0x0F12,
+	0x0F26, 0x0F2A, 0x0F2C, 0x0F2C, 0x2000, 0x2002, 0x2006, 0x200F,
+	0x2080, 0x2082, 0x2100, 0x2109, 0x210C, 0x2114, 0x2180, 0x2184,
+	0x21F5, 0x21F7, 0x2200, 0x2208, 0x2280, 0x2283, 0x2293, 0x2294,
+	0x2300, 0x2308, 0x2312, 0x2312, 0x2316, 0x231D, 0x2324, 0x2326,
+	0x2380, 0x2383, 0x2400, 0x2402, 0x2406, 0x240F, 0x2480, 0x2482,
+	0x2500, 0x2509, 0x250C, 0x2514, 0x2580, 0x2584, 0x25F5, 0x25F7,
+	0x2600, 0x2608, 0x2680, 0x2683, 0x2693, 0x2694, 0x2700, 0x2708,
+	0x2712, 0x2712, 0x2716, 0x271D, 0x2724, 0x2726, 0x2780, 0x2783,
+	0x4000, 0x4003, 0x4800, 0x4805, 0x4900, 0x4900, 0x4908, 0x4908,
+	~0   /* sentinel */
+};
+
+static const unsigned int a220_registers[] = {
+	0x0000, 0x0002, 0x0004, 0x000B, 0x003B, 0x003D, 0x0040, 0x0044,
+	0x0046, 0x0047, 0x01C0, 0x01C1, 0x01C3, 0x01C8, 0x01D5, 0x01D9,
+	0x01DC, 0x01DD, 0x01EA, 0x01EA, 0x01EE, 0x01F3, 0x01F6, 0x01F7,
+	0x01FC, 0x01FF, 0x0391, 0x0392, 0x039B, 0x039E, 0x03B2, 0x03B5,
+	0x03B7, 0x03B7, 0x03F8, 0x03FB, 0x0440, 0x0440, 0x0443, 0x0444,
+	0x044B, 0x044B, 0x044D, 0x044F, 0x0452, 0x0452, 0x0454, 0x045B,
+	0x047F, 0x047F, 0x0578, 0x0587, 0x05C9, 0x05C9, 0x05D0, 0x05D0,
+	0x0601, 0x0604, 0x0606, 0x0609, 0x060B, 0x060E, 0x0613, 0x0614,
+	0x0A29, 0x0A2B, 0x0A2F, 0x0A31, 0x0A40, 0x0A40, 0x0A42, 0x0A43,
+	0x0A45, 0x0A45, 0x0A4E, 0x0A4F, 0x0C30, 0x0C30, 0x0C38, 0x0C39,
+	0x0C3C, 0x0C3C, 0x0C80, 0x0C81, 0x0C88, 0x0C93, 0x0D00, 0x0D03,
+	0x0D05, 0x0D06, 0x0D08, 0x0D0B, 0x0D34, 0x0D35, 0x0DAE, 0x0DC1,
+	0x0DC8, 0x0DD4, 0x0DD8, 0x0DD9, 0x0E00, 0x0E00, 0x0E02, 0x0E04,
+	0x0E17, 0x0E1E, 0x0EC0, 0x0EC9, 0x0ECB, 0x0ECC, 0x0ED0, 0x0ED0,
+	0x0ED4, 0x0ED7, 0x0EE0, 0x0EE2, 0x0F01, 0x0F02, 0x2000, 0x2002,
+	0x2006, 0x200F, 0x2080, 0x2082, 0x2100, 0x2102, 0x2104, 0x2109,
+	0x210C, 0x2114, 0x2180, 0x2184, 0x21F5, 0x21F7, 0x2200, 0x2202,
+	0x2204, 0x2204, 0x2208, 0x2208, 0x2280, 0x2282, 0x2294, 0x2294,
+	0x2300, 0x2308, 0x2309, 0x230A, 0x2312, 0x2312, 0x2316, 0x2316,
+	0x2318, 0x231D, 0x2324, 0x2326, 0x2380, 0x2383, 0x2400, 0x2402,
+	0x2406, 0x240F, 0x2480, 0x2482, 0x2500, 0x2502, 0x2504, 0x2509,
+	0x250C, 0x2514, 0x2580, 0x2584, 0x25F5, 0x25F7, 0x2600, 0x2602,
+	0x2604, 0x2606, 0x2608, 0x2608, 0x2680, 0x2682, 0x2694, 0x2694,
+	0x2700, 0x2708, 0x2712, 0x2712, 0x2716, 0x2716, 0x2718, 0x271D,
+	0x2724, 0x2726, 0x2780, 0x2783, 0x4000, 0x4003, 0x4800, 0x4805,
+	0x4900, 0x4900, 0x4908, 0x4908,
+	~0   /* sentinel */
+};
+
+static const unsigned int a225_registers[] = {
+	0x0000, 0x0002, 0x0004, 0x000B, 0x003B, 0x003D, 0x0040, 0x0044,
+	0x0046, 0x0047, 0x013C, 0x013C, 0x0140, 0x014F, 0x01C0, 0x01C1,
+	0x01C3, 0x01C8, 0x01D5, 0x01D9, 0x01DC, 0x01DD, 0x01EA, 0x01EA,
+	0x01EE, 0x01F3, 0x01F6, 0x01F7, 0x01FC, 0x01FF, 0x0391, 0x0392,
+	0x039B, 0x039E, 0x03B2, 0x03B5, 0x03B7, 0x03B7, 0x03F8, 0x03FB,
+	0x0440, 0x0440, 0x0443, 0x0444, 0x044B, 0x044B, 0x044D, 0x044F,
+	0x0452, 0x0452, 0x0454, 0x045B, 0x047F, 0x047F, 0x0578, 0x0587,
+	0x05C9, 0x05C9, 0x05D0, 0x05D0, 0x0601, 0x0604, 0x0606, 0x0609,
+	0x060B, 0x060E, 0x0613, 0x0614, 0x0A29, 0x0A2B, 0x0A2F, 0x0A31,
+	0x0A40, 0x0A40, 0x0A42, 0x0A43, 0x0A45, 0x0A45, 0x0A4E, 0x0A4F,
+	0x0C01, 0x0C1D, 0x0C30, 0x0C30, 0x0C38, 0x0C39, 0x0C3C, 0x0C3C,
+	0x0C80, 0x0C81, 0x0C88, 0x0C93, 0x0D00, 0x0D03, 0x0D05, 0x0D06,
+	0x0D08, 0x0D0B, 0x0D34, 0x0D35, 0x0DAE, 0x0DC1, 0x0DC8, 0x0DD4,
+	0x0DD8, 0x0DD9, 0x0E00, 0x0E00, 0x0E02, 0x0E04, 0x0E17, 0x0E1E,
+	0x0EC0, 0x0EC9, 0x0ECB, 0x0ECC, 0x0ED0, 0x0ED0, 0x0ED4, 0x0ED7,
+	0x0EE0, 0x0EE2, 0x0F01, 0x0F02, 0x2000, 0x200F, 0x2080, 0x2082,
+	0x2100, 0x2109, 0x210C, 0x2114, 0x2180, 0x2184, 0x21F5, 0x21F7,
+	0x2200, 0x2202, 0x2204, 0x2206, 0x2208, 0x2210, 0x2220, 0x2222,
+	0x2280, 0x2282, 0x2294, 0x2294, 0x2297, 0x2297, 0x2300, 0x230A,
+	0x2312, 0x2312, 0x2315, 0x2316, 0x2318, 0x231D, 0x2324, 0x2326,
+	0x2340, 0x2357, 0x2360, 0x2360, 0x2380, 0x2383, 0x2400, 0x240F,
+	0x2480, 0x2482, 0x2500, 0x2509, 0x250C, 0x2514, 0x2580, 0x2584,
+	0x25F5, 0x25F7, 0x2600, 0x2602, 0x2604, 0x2606, 0x2608, 0x2610,
+	0x2620, 0x2622, 0x2680, 0x2682, 0x2694, 0x2694, 0x2697, 0x2697,
+	0x2700, 0x270A, 0x2712, 0x2712, 0x2715, 0x2716, 0x2718, 0x271D,
+	0x2724, 0x2726, 0x2740, 0x2757, 0x2760, 0x2760, 0x2780, 0x2783,
+	0x4000, 0x4003, 0x4800, 0x4806, 0x4808, 0x4808, 0x4900, 0x4900,
+	0x4908, 0x4908,
+	~0   /* sentinel */
+};
+
+/* would be nice to not have to duplicate the _show() stuff with printk(): */
+static void a2xx_dump(struct msm_gpu *gpu)
+{
+	printk("status:   %08x\n",
+			gpu_read(gpu, REG_A2XX_RBBM_STATUS));
+	adreno_dump(gpu);
+}
+
+static struct msm_gpu_state *a2xx_gpu_state_get(struct msm_gpu *gpu)
+{
+	struct msm_gpu_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
+
+	if (!state)
+		return ERR_PTR(-ENOMEM);
+
+	adreno_gpu_state_get(gpu, state);
+
+	state->rbbm_status = gpu_read(gpu, REG_A2XX_RBBM_STATUS);
+
+	return state;
+}
+
+/* Register offset defines for A2XX - copy of A3XX */
+static const unsigned int a2xx_register_offsets[REG_ADRENO_REGISTER_MAX] = {
+	REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_BASE, REG_AXXX_CP_RB_BASE),
+	REG_ADRENO_SKIP(REG_ADRENO_CP_RB_BASE_HI),
+	REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_RPTR_ADDR, REG_AXXX_CP_RB_RPTR_ADDR),
+	REG_ADRENO_SKIP(REG_ADRENO_CP_RB_RPTR_ADDR_HI),
+	REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_RPTR, REG_AXXX_CP_RB_RPTR),
+	REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_WPTR, REG_AXXX_CP_RB_WPTR),
+	REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_CNTL, REG_AXXX_CP_RB_CNTL),
+};
+
+static const struct adreno_gpu_funcs funcs = {
+	.base = {
+		.get_param = adreno_get_param,
+		.hw_init = a2xx_hw_init,
+		.pm_suspend = msm_gpu_pm_suspend,
+		.pm_resume = msm_gpu_pm_resume,
+		.recover = a2xx_recover,
+		.submit = adreno_submit,
+		.flush = adreno_flush,
+		.active_ring = adreno_active_ring,
+		.irq = a2xx_irq,
+		.destroy = a2xx_destroy,
+#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
+		.show = adreno_show,
+#endif
+		.gpu_state_get = a2xx_gpu_state_get,
+		.gpu_state_put = adreno_gpu_state_put,
+	},
+};
+
+static const struct msm_gpu_perfcntr perfcntrs[] = {
+/* TODO */
+};
+
+struct msm_gpu *a2xx_gpu_init(struct drm_device *dev)
+{
+	struct a2xx_gpu *a2xx_gpu = NULL;
+	struct adreno_gpu *adreno_gpu;
+	struct msm_gpu *gpu;
+	struct msm_drm_private *priv = dev->dev_private;
+	struct platform_device *pdev = priv->gpu_pdev;
+	int ret;
+
+	if (!pdev) {
+		dev_err(dev->dev, "no a2xx device\n");
+		ret = -ENXIO;
+		goto fail;
+	}
+
+	a2xx_gpu = kzalloc(sizeof(*a2xx_gpu), GFP_KERNEL);
+	if (!a2xx_gpu) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	adreno_gpu = &a2xx_gpu->base;
+	gpu = &adreno_gpu->base;
+
+	gpu->perfcntrs = perfcntrs;
+	gpu->num_perfcntrs = ARRAY_SIZE(perfcntrs);
+
+	if (adreno_is_a20x(adreno_gpu))
+		adreno_gpu->registers = a200_registers;
+	else if (adreno_is_a225(adreno_gpu))
+		adreno_gpu->registers = a225_registers;
+	else
+		adreno_gpu->registers = a220_registers;
+
+	adreno_gpu->reg_offsets = a2xx_register_offsets;
+
+	ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1);
+	if (ret)
+		goto fail;
+
+	if (!gpu->aspace) {
+		dev_err(dev->dev, "No memory protection without MMU\n");
+		ret = -ENXIO;
+		goto fail;
+	}
+
+	return gpu;
+
+fail:
+	if (a2xx_gpu)
+		a2xx_destroy(&a2xx_gpu->base.base);
+
+	return ERR_PTR(ret);
+}