1. 根目录:
2. drivers
3. gpu
4. drm
5. radeon
6. ni.c

/*
 * Copyright 2010 Advanced Micro Devices, Inc.
 *
 * 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.
 *
 * Authors: Alex Deucher
 */
#include <linux/firmware.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "drmP.h"
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_drm.h"
#include "nid.h"
#include "atom.h"
#include "ni_reg.h"
#include "cayman_blit_shaders.h"

extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
extern int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
extern void evergreen_mc_program(struct radeon_device *rdev);
extern void evergreen_irq_suspend(struct radeon_device *rdev);
extern int evergreen_mc_init(struct radeon_device *rdev);

#define EVERGREEN_PFP_UCODE_SIZE 1120
#define EVERGREEN_PM4_UCODE_SIZE 1376
#define EVERGREEN_RLC_UCODE_SIZE 768
#define BTC_MC_UCODE_SIZE 6024

#define CAYMAN_PFP_UCODE_SIZE 2176
#define CAYMAN_PM4_UCODE_SIZE 2176
#define CAYMAN_RLC_UCODE_SIZE 1024
#define CAYMAN_MC_UCODE_SIZE 6037

/* Firmware Names */
MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
MODULE_FIRMWARE("radeon/BARTS_me.bin");
MODULE_FIRMWARE("radeon/BARTS_mc.bin");
MODULE_FIRMWARE("radeon/BTC_rlc.bin");
MODULE_FIRMWARE("radeon/TURKS_pfp.bin");
MODULE_FIRMWARE("radeon/TURKS_me.bin");
MODULE_FIRMWARE("radeon/TURKS_mc.bin");
MODULE_FIRMWARE("radeon/CAICOS_pfp.bin");
MODULE_FIRMWARE("radeon/CAICOS_me.bin");
MODULE_FIRMWARE("radeon/CAICOS_mc.bin");
MODULE_FIRMWARE("radeon/CAYMAN_pfp.bin");
MODULE_FIRMWARE("radeon/CAYMAN_me.bin");
MODULE_FIRMWARE("radeon/CAYMAN_mc.bin");
MODULE_FIRMWARE("radeon/CAYMAN_rlc.bin");

#define BTC_IO_MC_REGS_SIZE 29

static const u32 barts_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
	{0x00000077, 0xff010100},
	{0x00000078, 0x00000000},
	{0x00000079, 0x00001434},
	{0x0000007a, 0xcc08ec08},
	{0x0000007b, 0x00040000},
	{0x0000007c, 0x000080c0},
	{0x0000007d, 0x09000000},
	{0x0000007e, 0x00210404},
	{0x00000081, 0x08a8e800},
	{0x00000082, 0x00030444},
	{0x00000083, 0x00000000},
	{0x00000085, 0x00000001},
	{0x00000086, 0x00000002},
	{0x00000087, 0x48490000},
	{0x00000088, 0x20244647},
	{0x00000089, 0x00000005},
	{0x0000008b, 0x66030000},
	{0x0000008c, 0x00006603},
	{0x0000008d, 0x00000100},
	{0x0000008f, 0x00001c0a},
	{0x00000090, 0xff000001},
	{0x00000094, 0x00101101},
	{0x00000095, 0x00000fff},
	{0x00000096, 0x00116fff},
	{0x00000097, 0x60010000},
	{0x00000098, 0x10010000},
	{0x00000099, 0x00006000},
	{0x0000009a, 0x00001000},
	{0x0000009f, 0x00946a00}
};

static const u32 turks_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
	{0x00000077, 0xff010100},
	{0x00000078, 0x00000000},
	{0x00000079, 0x00001434},
	{0x0000007a, 0xcc08ec08},
	{0x0000007b, 0x00040000},
	{0x0000007c, 0x000080c0},
	{0x0000007d, 0x09000000},
	{0x0000007e, 0x00210404},
	{0x00000081, 0x08a8e800},
	{0x00000082, 0x00030444},
	{0x00000083, 0x00000000},
	{0x00000085, 0x00000001},
	{0x00000086, 0x00000002},
	{0x00000087, 0x48490000},
	{0x00000088, 0x20244647},
	{0x00000089, 0x00000005},
	{0x0000008b, 0x66030000},
	{0x0000008c, 0x00006603},
	{0x0000008d, 0x00000100},
	{0x0000008f, 0x00001c0a},
	{0x00000090, 0xff000001},
	{0x00000094, 0x00101101},
	{0x00000095, 0x00000fff},
	{0x00000096, 0x00116fff},
	{0x00000097, 0x60010000},
	{0x00000098, 0x10010000},
	{0x00000099, 0x00006000},
	{0x0000009a, 0x00001000},
	{0x0000009f, 0x00936a00}
};

static const u32 caicos_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
	{0x00000077, 0xff010100},
	{0x00000078, 0x00000000},
	{0x00000079, 0x00001434},
	{0x0000007a, 0xcc08ec08},
	{0x0000007b, 0x00040000},
	{0x0000007c, 0x000080c0},
	{0x0000007d, 0x09000000},
	{0x0000007e, 0x00210404},
	{0x00000081, 0x08a8e800},
	{0x00000082, 0x00030444},
	{0x00000083, 0x00000000},
	{0x00000085, 0x00000001},
	{0x00000086, 0x00000002},
	{0x00000087, 0x48490000},
	{0x00000088, 0x20244647},
	{0x00000089, 0x00000005},
	{0x0000008b, 0x66030000},
	{0x0000008c, 0x00006603},
	{0x0000008d, 0x00000100},
	{0x0000008f, 0x00001c0a},
	{0x00000090, 0xff000001},
	{0x00000094, 0x00101101},
	{0x00000095, 0x00000fff},
	{0x00000096, 0x00116fff},
	{0x00000097, 0x60010000},
	{0x00000098, 0x10010000},
	{0x00000099, 0x00006000},
	{0x0000009a, 0x00001000},
	{0x0000009f, 0x00916a00}
};

static const u32 cayman_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
	{0x00000077, 0xff010100},
	{0x00000078, 0x00000000},
	{0x00000079, 0x00001434},
	{0x0000007a, 0xcc08ec08},
	{0x0000007b, 0x00040000},
	{0x0000007c, 0x000080c0},
	{0x0000007d, 0x09000000},
	{0x0000007e, 0x00210404},
	{0x00000081, 0x08a8e800},
	{0x00000082, 0x00030444},
	{0x00000083, 0x00000000},
	{0x00000085, 0x00000001},
	{0x00000086, 0x00000002},
	{0x00000087, 0x48490000},
	{0x00000088, 0x20244647},
	{0x00000089, 0x00000005},
	{0x0000008b, 0x66030000},
	{0x0000008c, 0x00006603},
	{0x0000008d, 0x00000100},
	{0x0000008f, 0x00001c0a},
	{0x00000090, 0xff000001},
	{0x00000094, 0x00101101},
	{0x00000095, 0x00000fff},
	{0x00000096, 0x00116fff},
	{0x00000097, 0x60010000},
	{0x00000098, 0x10010000},
	{0x00000099, 0x00006000},
	{0x0000009a, 0x00001000},
	{0x0000009f, 0x00976b00}
};

int ni_mc_load_microcode(struct radeon_device *rdev)
{
	const __be32 *fw_data;
	u32 mem_type, running, blackout = 0;
	u32 *io_mc_regs;
	int i, ucode_size, regs_size;

	if (!rdev->mc_fw)
		return -EINVAL;

	switch (rdev->family) {
	case CHIP_BARTS:
		io_mc_regs = (u32 *)&barts_io_mc_regs;
		ucode_size = BTC_MC_UCODE_SIZE;
		regs_size = BTC_IO_MC_REGS_SIZE;
		break;
	case CHIP_TURKS:
		io_mc_regs = (u32 *)&turks_io_mc_regs;
		ucode_size = BTC_MC_UCODE_SIZE;
		regs_size = BTC_IO_MC_REGS_SIZE;
		break;
	case CHIP_CAICOS:
	default:
		io_mc_regs = (u32 *)&caicos_io_mc_regs;
		ucode_size = BTC_MC_UCODE_SIZE;
		regs_size = BTC_IO_MC_REGS_SIZE;
		break;
	case CHIP_CAYMAN:
		io_mc_regs = (u32 *)&cayman_io_mc_regs;
		ucode_size = CAYMAN_MC_UCODE_SIZE;
		regs_size = BTC_IO_MC_REGS_SIZE;
		break;
	}

	mem_type = (RREG32(MC_SEQ_MISC0) & MC_SEQ_MISC0_GDDR5_MASK) >> MC_SEQ_MISC0_GDDR5_SHIFT;
	running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;

	if ((mem_type == MC_SEQ_MISC0_GDDR5_VALUE) && (running == 0)) {
		if (running) {
			blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
			WREG32(MC_SHARED_BLACKOUT_CNTL, 1);
		}

		/* reset the engine and set to writable */
		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
		WREG32(MC_SEQ_SUP_CNTL, 0x00000010);

		/* load mc io regs */
		for (i = 0; i < regs_size; i++) {
			WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
			WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
		}
		/* load the MC ucode */
		fw_data = (const __be32 *)rdev->mc_fw->data;
		for (i = 0; i < ucode_size; i++)
			WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));

		/* put the engine back into the active state */
		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
		WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
		WREG32(MC_SEQ_SUP_CNTL, 0x00000001);

		/* wait for training to complete */
		while (!(RREG32(MC_IO_PAD_CNTL_D0) & MEM_FALL_OUT_CMD))
			udelay(10);

		if (running)
			WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
	}

	return 0;
}

int ni_init_microcode(struct radeon_device *rdev)
{
	struct platform_device *pdev;
	const char *chip_name;
	const char *rlc_chip_name;
	size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
	char fw_name[30];
	int err;

	DRM_DEBUG("\n");

	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
	err = IS_ERR(pdev);
	if (err) {
		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
		return -EINVAL;
	}

	switch (rdev->family) {
	case CHIP_BARTS:
		chip_name = "BARTS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_TURKS:
		chip_name = "TURKS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_CAICOS:
		chip_name = "CAICOS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_CAYMAN:
		chip_name = "CAYMAN";
		rlc_chip_name = "CAYMAN";
		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
		rlc_req_size = CAYMAN_RLC_UCODE_SIZE * 4;
		mc_req_size = CAYMAN_MC_UCODE_SIZE * 4;
		break;
	default: BUG();
	}

	DRM_INFO("Loading %s Microcode\n", chip_name);

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->pfp_fw->size != pfp_req_size) {
		printk(KERN_ERR
		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
		       rdev->pfp_fw->size, fw_name);
		err = -EINVAL;
		goto out;
	}

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->me_fw->size != me_req_size) {
		printk(KERN_ERR
		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
		       rdev->me_fw->size, fw_name);
		err = -EINVAL;
	}

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
	err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->rlc_fw->size != rlc_req_size) {
		printk(KERN_ERR
		       "ni_rlc: Bogus length %zu in firmware \"%s\"\n",
		       rdev->rlc_fw->size, fw_name);
		err = -EINVAL;
	}

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
	err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->mc_fw->size != mc_req_size) {
		printk(KERN_ERR
		       "ni_mc: Bogus length %zu in firmware \"%s\"\n",
		       rdev->mc_fw->size, fw_name);
		err = -EINVAL;
	}
out:
	platform_device_unregister(pdev);

	if (err) {
		if (err != -EINVAL)
			printk(KERN_ERR
			       "ni_cp: Failed to load firmware \"%s\"\n",
			       fw_name);
		release_firmware(rdev->pfp_fw);
		rdev->pfp_fw = NULL;
		release_firmware(rdev->me_fw);
		rdev->me_fw = NULL;
		release_firmware(rdev->rlc_fw);
		rdev->rlc_fw = NULL;
		release_firmware(rdev->mc_fw);
		rdev->mc_fw = NULL;
	}
	return err;
}

/*
 * Core functions
 */
static u32 cayman_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
					       u32 num_tile_pipes,
					       u32 num_backends_per_asic,
					       u32 *backend_disable_mask_per_asic,
					       u32 num_shader_engines)
{
	u32 backend_map = 0;
	u32 enabled_backends_mask = 0;
	u32 enabled_backends_count = 0;
	u32 num_backends_per_se;
	u32 cur_pipe;
	u32 swizzle_pipe[CAYMAN_MAX_PIPES];
	u32 cur_backend = 0;
	u32 i;
	bool force_no_swizzle;

	/* force legal values */
	if (num_tile_pipes < 1)
		num_tile_pipes = 1;
	if (num_tile_pipes > rdev->config.cayman.max_tile_pipes)
		num_tile_pipes = rdev->config.cayman.max_tile_pipes;
	if (num_shader_engines < 1)
		num_shader_engines = 1;
	if (num_shader_engines > rdev->config.cayman.max_shader_engines)
		num_shader_engines = rdev->config.cayman.max_shader_engines;
	if (num_backends_per_asic < num_shader_engines)
		num_backends_per_asic = num_shader_engines;
	if (num_backends_per_asic > (rdev->config.cayman.max_backends_per_se * num_shader_engines))
		num_backends_per_asic = rdev->config.cayman.max_backends_per_se * num_shader_engines;

	/* make sure we have the same number of backends per se */
	num_backends_per_asic = ALIGN(num_backends_per_asic, num_shader_engines);
	/* set up the number of backends per se */
	num_backends_per_se = num_backends_per_asic / num_shader_engines;
	if (num_backends_per_se > rdev->config.cayman.max_backends_per_se) {
		num_backends_per_se = rdev->config.cayman.max_backends_per_se;
		num_backends_per_asic = num_backends_per_se * num_shader_engines;
	}

	/* create enable mask and count for enabled backends */
	for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
		if (((*backend_disable_mask_per_asic >> i) & 1) == 0) {
			enabled_backends_mask |= (1 << i);
			++enabled_backends_count;
		}
		if (enabled_backends_count == num_backends_per_asic)
			break;
	}

	/* force the backends mask to match the current number of backends */
	if (enabled_backends_count != num_backends_per_asic) {
		u32 this_backend_enabled;
		u32 shader_engine;
		u32 backend_per_se;

		enabled_backends_mask = 0;
		enabled_backends_count = 0;
		*backend_disable_mask_per_asic = CAYMAN_MAX_BACKENDS_MASK;
		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
			/* calc the current se */
			shader_engine = i / rdev->config.cayman.max_backends_per_se;
			/* calc the backend per se */
			backend_per_se = i % rdev->config.cayman.max_backends_per_se;
			/* default to not enabled */
			this_backend_enabled = 0;
			if ((shader_engine < num_shader_engines) &&
			    (backend_per_se < num_backends_per_se))
				this_backend_enabled = 1;
			if (this_backend_enabled) {
				enabled_backends_mask |= (1 << i);
				*backend_disable_mask_per_asic &= ~(1 << i);
				++enabled_backends_count;
			}
		}
	}


	memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * CAYMAN_MAX_PIPES);
	switch (rdev->family) {
	case CHIP_CAYMAN:
		force_no_swizzle = true;
		break;
	default:
		force_no_swizzle = false;
		break;
	}
	if (force_no_swizzle) {
		bool last_backend_enabled = false;

		force_no_swizzle = false;
		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
			if (((enabled_backends_mask >> i) & 1) == 1) {
				if (last_backend_enabled)
					force_no_swizzle = true;
				last_backend_enabled = true;
			} else
				last_backend_enabled = false;
		}
	}

	switch (num_tile_pipes) {
	case 1:
	case 3:
	case 5:
	case 7:
		DRM_ERROR("odd number of pipes!\n");
		break;
	case 2:
		swizzle_pipe[0] = 0;
		swizzle_pipe[1] = 1;
		break;
	case 4:
		if (force_no_swizzle) {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 1;
			swizzle_pipe[2] = 2;
			swizzle_pipe[3] = 3;
		} else {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 2;
			swizzle_pipe[2] = 1;
			swizzle_pipe[3] = 3;
		}
		break;
	case 6:
		if (force_no_swizzle) {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 1;
			swizzle_pipe[2] = 2;
			swizzle_pipe[3] = 3;
			swizzle_pipe[4] = 4;
			swizzle_pipe[5] = 5;
		} else {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 2;
			swizzle_pipe[2] = 4;
			swizzle_pipe[3] = 1;
			swizzle_pipe[4] = 3;
			swizzle_pipe[5] = 5;
		}
		break;
	case 8:
		if (force_no_swizzle) {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 1;
			swizzle_pipe[2] = 2;
			swizzle_pipe[3] = 3;
			swizzle_pipe[4] = 4;
			swizzle_pipe[5] = 5;
			swizzle_pipe[6] = 6;
			swizzle_pipe[7] = 7;
		} else {
			swizzle_pipe[0] = 0;
			swizzle_pipe[1] = 2;
			swizzle_pipe[2] = 4;
			swizzle_pipe[3] = 6;
			swizzle_pipe[4] = 1;
			swizzle_pipe[5] = 3;
			swizzle_pipe[6] = 5;
			swizzle_pipe[7] = 7;
		}
		break;
	}

	for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
		while (((1 << cur_backend) & enabled_backends_mask) == 0)
			cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;

		backend_map |= (((cur_backend & 0xf) << (swizzle_pipe[cur_pipe] * 4)));

		cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;
	}

	return backend_map;
}

static void cayman_program_channel_remap(struct radeon_device *rdev)
{
	u32 tcp_chan_steer_lo, tcp_chan_steer_hi, mc_shared_chremap, tmp;

	tmp = RREG32(MC_SHARED_CHMAP);
	switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
	case 0:
	case 1:
	case 2:
	case 3:
	default:
		/* default mapping */
		mc_shared_chremap = 0x00fac688;
		break;
	}

	switch (rdev->family) {
	case CHIP_CAYMAN:
	default:
		//tcp_chan_steer_lo = 0x54763210
		tcp_chan_steer_lo = 0x76543210;
		tcp_chan_steer_hi = 0x0000ba98;
		break;
	}

	WREG32(TCP_CHAN_STEER_LO, tcp_chan_steer_lo);
	WREG32(TCP_CHAN_STEER_HI, tcp_chan_steer_hi);
	WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
}

static u32 cayman_get_disable_mask_per_asic(struct radeon_device *rdev,
					    u32 disable_mask_per_se,
					    u32 max_disable_mask_per_se,
					    u32 num_shader_engines)
{
	u32 disable_field_width_per_se = r600_count_pipe_bits(disable_mask_per_se);
	u32 disable_mask_per_asic = disable_mask_per_se & max_disable_mask_per_se;

	if (num_shader_engines == 1)
		return disable_mask_per_asic;
	else if (num_shader_engines == 2)
		return disable_mask_per_asic | (disable_mask_per_asic << disable_field_width_per_se);
	else
		return 0xffffffff;
}

static void cayman_gpu_init(struct radeon_device *rdev)
{
	u32 cc_rb_backend_disable = 0;
	u32 cc_gc_shader_pipe_config;
	u32 gb_addr_config = 0;
	u32 mc_shared_chmap, mc_arb_ramcfg;
	u32 gb_backend_map;
	u32 cgts_tcc_disable;
	u32 sx_debug_1;
	u32 smx_dc_ctl0;
	u32 gc_user_shader_pipe_config;
	u32 gc_user_rb_backend_disable;
	u32 cgts_user_tcc_disable;
	u32 cgts_sm_ctrl_reg;
	u32 hdp_host_path_cntl;
	u32 tmp;
	int i, j;

	switch (rdev->family) {
	case CHIP_CAYMAN:
	default:
		rdev->config.cayman.max_shader_engines = 2;
		rdev->config.cayman.max_pipes_per_simd = 4;
		rdev->config.cayman.max_tile_pipes = 8;
		rdev->config.cayman.max_simds_per_se = 12;
		rdev->config.cayman.max_backends_per_se = 4;
		rdev->config.cayman.max_texture_channel_caches = 8;
		rdev->config.cayman.max_gprs = 256;
		rdev->config.cayman.max_threads = 256;
		rdev->config.cayman.max_gs_threads = 32;
		rdev->config.cayman.max_stack_entries = 512;
		rdev->config.cayman.sx_num_of_sets = 8;
		rdev->config.cayman.sx_max_export_size = 256;
		rdev->config.cayman.sx_max_export_pos_size = 64;
		rdev->config.cayman.sx_max_export_smx_size = 192;
		rdev->config.cayman.max_hw_contexts = 8;
		rdev->config.cayman.sq_num_cf_insts = 2;

		rdev->config.cayman.sc_prim_fifo_size = 0x100;
		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
		break;
	}

	/* Initialize HDP */
	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
		WREG32((0x2c14 + j), 0x00000000);
		WREG32((0x2c18 + j), 0x00000000);
		WREG32((0x2c1c + j), 0x00000000);
		WREG32((0x2c20 + j), 0x00000000);
		WREG32((0x2c24 + j), 0x00000000);
	}

	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));

	mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
	mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);

	cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE);
	cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG);
	cgts_tcc_disable = 0xff000000;
	gc_user_rb_backend_disable = RREG32(GC_USER_RB_BACKEND_DISABLE);
	gc_user_shader_pipe_config = RREG32(GC_USER_SHADER_PIPE_CONFIG);
	cgts_user_tcc_disable = RREG32(CGTS_USER_TCC_DISABLE);

	rdev->config.cayman.num_shader_engines = rdev->config.cayman.max_shader_engines;
	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_QD_PIPES_MASK) >> INACTIVE_QD_PIPES_SHIFT;
	rdev->config.cayman.num_shader_pipes_per_simd = r600_count_pipe_bits(tmp);
	rdev->config.cayman.num_tile_pipes = rdev->config.cayman.max_tile_pipes;
	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_SIMDS_MASK) >> INACTIVE_SIMDS_SHIFT;
	rdev->config.cayman.num_simds_per_se = r600_count_pipe_bits(tmp);
	tmp = ((~gc_user_rb_backend_disable) & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
	rdev->config.cayman.num_backends_per_se = r600_count_pipe_bits(tmp);
	tmp = (gc_user_rb_backend_disable & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
	rdev->config.cayman.backend_disable_mask_per_asic =
		cayman_get_disable_mask_per_asic(rdev, tmp, CAYMAN_MAX_BACKENDS_PER_SE_MASK,
						 rdev->config.cayman.num_shader_engines);
	rdev->config.cayman.backend_map =
		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
						    rdev->config.cayman.num_backends_per_se *
						    rdev->config.cayman.num_shader_engines,
						    &rdev->config.cayman.backend_disable_mask_per_asic,
						    rdev->config.cayman.num_shader_engines);
	tmp = ((~cgts_user_tcc_disable) & TCC_DISABLE_MASK) >> TCC_DISABLE_SHIFT;
	rdev->config.cayman.num_texture_channel_caches = r600_count_pipe_bits(tmp);
	tmp = (mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT;
	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
	if (rdev->config.cayman.mem_max_burst_length_bytes > 512)
		rdev->config.cayman.mem_max_burst_length_bytes = 512;
	tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
	rdev->config.cayman.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
	if (rdev->config.cayman.mem_row_size_in_kb > 4)
		rdev->config.cayman.mem_row_size_in_kb = 4;
	/* XXX use MC settings? */
	rdev->config.cayman.shader_engine_tile_size = 32;
	rdev->config.cayman.num_gpus = 1;
	rdev->config.cayman.multi_gpu_tile_size = 64;

	//gb_addr_config = 0x02011003
#if 0
	gb_addr_config = RREG32(GB_ADDR_CONFIG);
#else
	gb_addr_config = 0;
	switch (rdev->config.cayman.num_tile_pipes) {
	case 1:
	default:
		gb_addr_config |= NUM_PIPES(0);
		break;
	case 2:
		gb_addr_config |= NUM_PIPES(1);
		break;
	case 4:
		gb_addr_config |= NUM_PIPES(2);
		break;
	case 8:
		gb_addr_config |= NUM_PIPES(3);
		break;
	}

	tmp = (rdev->config.cayman.mem_max_burst_length_bytes / 256) - 1;
	gb_addr_config |= PIPE_INTERLEAVE_SIZE(tmp);
	gb_addr_config |= NUM_SHADER_ENGINES(rdev->config.cayman.num_shader_engines - 1);
	tmp = (rdev->config.cayman.shader_engine_tile_size / 16) - 1;
	gb_addr_config |= SHADER_ENGINE_TILE_SIZE(tmp);
	switch (rdev->config.cayman.num_gpus) {
	case 1:
	default:
		gb_addr_config |= NUM_GPUS(0);
		break;
	case 2:
		gb_addr_config |= NUM_GPUS(1);
		break;
	case 4:
		gb_addr_config |= NUM_GPUS(2);
		break;
	}
	switch (rdev->config.cayman.multi_gpu_tile_size) {
	case 16:
		gb_addr_config |= MULTI_GPU_TILE_SIZE(0);
		break;
	case 32:
	default:
		gb_addr_config |= MULTI_GPU_TILE_SIZE(1);
		break;
	case 64:
		gb_addr_config |= MULTI_GPU_TILE_SIZE(2);
		break;
	case 128:
		gb_addr_config |= MULTI_GPU_TILE_SIZE(3);
		break;
	}
	switch (rdev->config.cayman.mem_row_size_in_kb) {
	case 1:
	default:
		gb_addr_config |= ROW_SIZE(0);
		break;
	case 2:
		gb_addr_config |= ROW_SIZE(1);
		break;
	case 4:
		gb_addr_config |= ROW_SIZE(2);
		break;
	}
#endif

	tmp = (gb_addr_config & NUM_PIPES_MASK) >> NUM_PIPES_SHIFT;
	rdev->config.cayman.num_tile_pipes = (1 << tmp);
	tmp = (gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT;
	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
	tmp = (gb_addr_config & NUM_SHADER_ENGINES_MASK) >> NUM_SHADER_ENGINES_SHIFT;
	rdev->config.cayman.num_shader_engines = tmp + 1;
	tmp = (gb_addr_config & NUM_GPUS_MASK) >> NUM_GPUS_SHIFT;
	rdev->config.cayman.num_gpus = tmp + 1;
	tmp = (gb_addr_config & MULTI_GPU_TILE_SIZE_MASK) >> MULTI_GPU_TILE_SIZE_SHIFT;
	rdev->config.cayman.multi_gpu_tile_size = 1 << tmp;
	tmp = (gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT;
	rdev->config.cayman.mem_row_size_in_kb = 1 << tmp;

	//gb_backend_map = 0x76541032;
#if 0
	gb_backend_map = RREG32(GB_BACKEND_MAP);
#else
	gb_backend_map =
		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
						    rdev->config.cayman.num_backends_per_se *
						    rdev->config.cayman.num_shader_engines,
						    &rdev->config.cayman.backend_disable_mask_per_asic,
						    rdev->config.cayman.num_shader_engines);
#endif
	/* setup tiling info dword.  gb_addr_config is not adequate since it does
	 * not have bank info, so create a custom tiling dword.
	 * bits 3:0   num_pipes
	 * bits 7:4   num_banks
	 * bits 11:8  group_size
	 * bits 15:12 row_size
	 */
	rdev->config.cayman.tile_config = 0;
	switch (rdev->config.cayman.num_tile_pipes) {
	case 1:
	default:
		rdev->config.cayman.tile_config |= (0 << 0);
		break;
	case 2:
		rdev->config.cayman.tile_config |= (1 << 0);
		break;
	case 4:
		rdev->config.cayman.tile_config |= (2 << 0);
		break;
	case 8:
		rdev->config.cayman.tile_config |= (3 << 0);
		break;
	}
	rdev->config.cayman.tile_config |=
		((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
	rdev->config.cayman.tile_config |=
		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
	rdev->config.cayman.tile_config |=
		((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;

	WREG32(GB_BACKEND_MAP, gb_backend_map);
	WREG32(GB_ADDR_CONFIG, gb_addr_config);
	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
	WREG32(HDP_ADDR_CONFIG, gb_addr_config);

	cayman_program_channel_remap(rdev);

	/* primary versions */
	WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable);
	WREG32(CC_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
	WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);

	WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);
	WREG32(CGTS_SYS_TCC_DISABLE, cgts_tcc_disable);

	/* user versions */
	WREG32(GC_USER_RB_BACKEND_DISABLE, cc_rb_backend_disable);
	WREG32(GC_USER_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
	WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);

	WREG32(CGTS_USER_SYS_TCC_DISABLE, cgts_tcc_disable);
	WREG32(CGTS_USER_TCC_DISABLE, cgts_tcc_disable);

	/* reprogram the shader complex */
	cgts_sm_ctrl_reg = RREG32(CGTS_SM_CTRL_REG);
	for (i = 0; i < 16; i++)
		WREG32(CGTS_SM_CTRL_REG, OVERRIDE);
	WREG32(CGTS_SM_CTRL_REG, cgts_sm_ctrl_reg);

	/* set HW defaults for 3D engine */
	WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));

	sx_debug_1 = RREG32(SX_DEBUG_1);
	sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
	WREG32(SX_DEBUG_1, sx_debug_1);

	smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
	smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
	smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets);
	WREG32(SMX_DC_CTL0, smx_dc_ctl0);

	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE);

	/* need to be explicitly zero-ed */
	WREG32(VGT_OFFCHIP_LDS_BASE, 0);
	WREG32(SQ_LSTMP_RING_BASE, 0);
	WREG32(SQ_HSTMP_RING_BASE, 0);
	WREG32(SQ_ESTMP_RING_BASE, 0);
	WREG32(SQ_GSTMP_RING_BASE, 0);
	WREG32(SQ_VSTMP_RING_BASE, 0);
	WREG32(SQ_PSTMP_RING_BASE, 0);

	WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO);

	WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) |
					POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) |
					SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1)));

	WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) |
				 SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) |
				 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size)));


	WREG32(VGT_NUM_INSTANCES, 1);

	WREG32(CP_PERFMON_CNTL, 0);

	WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) |
				  FETCH_FIFO_HIWATER(0x4) |
				  DONE_FIFO_HIWATER(0xe0) |
				  ALU_UPDATE_FIFO_HIWATER(0x8)));

	WREG32(SQ_GPR_RESOURCE_MGMT_1, NUM_CLAUSE_TEMP_GPRS(4));
	WREG32(SQ_CONFIG, (VC_ENABLE |
			   EXPORT_SRC_C |
			   GFX_PRIO(0) |
			   CS1_PRIO(0) |
			   CS2_PRIO(1)));
	WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);

	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
					  FORCE_EOV_MAX_REZ_CNT(255)));

	WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
	       AUTO_INVLD_EN(ES_AND_GS_AUTO));

	WREG32(VGT_GS_VERTEX_REUSE, 16);
	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);

	WREG32(CB_PERF_CTR0_SEL_0, 0);
	WREG32(CB_PERF_CTR0_SEL_1, 0);
	WREG32(CB_PERF_CTR1_SEL_0, 0);
	WREG32(CB_PERF_CTR1_SEL_1, 0);
	WREG32(CB_PERF_CTR2_SEL_0, 0);
	WREG32(CB_PERF_CTR2_SEL_1, 0);
	WREG32(CB_PERF_CTR3_SEL_0, 0);
	WREG32(CB_PERF_CTR3_SEL_1, 0);

	tmp = RREG32(HDP_MISC_CNTL);
	tmp |= HDP_FLUSH_INVALIDATE_CACHE;
	WREG32(HDP_MISC_CNTL, tmp);

	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);

	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));

	udelay(50);
}

/*
 * GART
 */
void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
{
	/* flush hdp cache */
	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);

	/* bits 0-7 are the VM contexts0-7 */
	WREG32(VM_INVALIDATE_REQUEST, 1);
}

int cayman_pcie_gart_enable(struct radeon_device *rdev)
{
	int r;

	if (rdev->gart.table.vram.robj == NULL) {
		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
		return -EINVAL;
	}
	r = radeon_gart_table_vram_pin(rdev);
	if (r)
		return r;
	radeon_gart_restore(rdev);
	/* Setup TLB control */
	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB |
	       ENABLE_L1_FRAGMENT_PROCESSING |
	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
	/* Setup L2 cache */
	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
	       ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
	       EFFECTIVE_L2_QUEUE_SIZE(7) |
	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
	WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
	/* setup context0 */
	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
			(u32)(rdev->dummy_page.addr >> 12));
	WREG32(VM_CONTEXT0_CNTL2, 0);
	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
	/* disable context1-7 */
	WREG32(VM_CONTEXT1_CNTL2, 0);
	WREG32(VM_CONTEXT1_CNTL, 0);

	cayman_pcie_gart_tlb_flush(rdev);
	rdev->gart.ready = true;
	return 0;
}

void cayman_pcie_gart_disable(struct radeon_device *rdev)
{
	int r;

	/* Disable all tables */
	WREG32(VM_CONTEXT0_CNTL, 0);
	WREG32(VM_CONTEXT1_CNTL, 0);
	/* Setup TLB control */
	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
	/* Setup L2 cache */
	WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
	       EFFECTIVE_L2_QUEUE_SIZE(7) |
	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
	WREG32(VM_L2_CNTL2, 0);
	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
	if (rdev->gart.table.vram.robj) {
		r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
		if (likely(r == 0)) {
			radeon_bo_kunmap(rdev->gart.table.vram.robj);
			radeon_bo_unpin(rdev->gart.table.vram.robj);
			radeon_bo_unreserve(rdev->gart.table.vram.robj);
		}
	}
}

void cayman_pcie_gart_fini(struct radeon_device *rdev)
{
	cayman_pcie_gart_disable(rdev);
	radeon_gart_table_vram_free(rdev);
	radeon_gart_fini(rdev);
}

/*
 * CP.
 */
static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
{
	if (enable)
		WREG32(CP_ME_CNTL, 0);
	else {
		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
		WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
		WREG32(SCRATCH_UMSK, 0);
	}
}

static int cayman_cp_load_microcode(struct radeon_device *rdev)
{
	const __be32 *fw_data;
	int i;

	if (!rdev->me_fw || !rdev->pfp_fw)
		return -EINVAL;

	cayman_cp_enable(rdev, false);

	fw_data = (const __be32 *)rdev->pfp_fw->data;
	WREG32(CP_PFP_UCODE_ADDR, 0);
	for (i = 0; i < CAYMAN_PFP_UCODE_SIZE; i++)
		WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
	WREG32(CP_PFP_UCODE_ADDR, 0);

	fw_data = (const __be32 *)rdev->me_fw->data;
	WREG32(CP_ME_RAM_WADDR, 0);
	for (i = 0; i < CAYMAN_PM4_UCODE_SIZE; i++)
		WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));

	WREG32(CP_PFP_UCODE_ADDR, 0);
	WREG32(CP_ME_RAM_WADDR, 0);
	WREG32(CP_ME_RAM_RADDR, 0);
	return 0;
}

static int cayman_cp_start(struct radeon_device *rdev)
{
	int r, i;

	r = radeon_ring_lock(rdev, 7);
	if (r) {
		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
		return r;
	}
	radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
	radeon_ring_write(rdev, 0x1);
	radeon_ring_write(rdev, 0x0);
	radeon_ring_write(rdev, rdev->config.cayman.max_hw_contexts - 1);
	radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
	radeon_ring_write(rdev, 0);
	radeon_ring_write(rdev, 0);
	radeon_ring_unlock_commit(rdev);

	cayman_cp_enable(rdev, true);

	r = radeon_ring_lock(rdev, cayman_default_size + 19);
	if (r) {
		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
		return r;
	}

	/* setup clear context state */
	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
	radeon_ring_write(rdev, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);

	for (i = 0; i < cayman_default_size; i++)
		radeon_ring_write(rdev, cayman_default_state[i]);

	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
	radeon_ring_write(rdev, PACKET3_PREAMBLE_END_CLEAR_STATE);

	/* set clear context state */
	radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
	radeon_ring_write(rdev, 0);

	/* SQ_VTX_BASE_VTX_LOC */
	radeon_ring_write(rdev, 0xc0026f00);
	radeon_ring_write(rdev, 0x00000000);
	radeon_ring_write(rdev, 0x00000000);
	radeon_ring_write(rdev, 0x00000000);

	/* Clear consts */
	radeon_ring_write(rdev, 0xc0036f00);
	radeon_ring_write(rdev, 0x00000bc4);
	radeon_ring_write(rdev, 0xffffffff);
	radeon_ring_write(rdev, 0xffffffff);
	radeon_ring_write(rdev, 0xffffffff);

	radeon_ring_write(rdev, 0xc0026900);
	radeon_ring_write(rdev, 0x00000316);
	radeon_ring_write(rdev, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
	radeon_ring_write(rdev, 0x00000010); /*  */

	radeon_ring_unlock_commit(rdev);

	/* XXX init other rings */

	return 0;
}

static void cayman_cp_fini(struct radeon_device *rdev)
{
	cayman_cp_enable(rdev, false);
	radeon_ring_fini(rdev);
}

int cayman_cp_resume(struct radeon_device *rdev)
{
	u32 tmp;
	u32 rb_bufsz;
	int r;

	/* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
	WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
				 SOFT_RESET_PA |
				 SOFT_RESET_SH |
				 SOFT_RESET_VGT |
				 SOFT_RESET_SX));
	RREG32(GRBM_SOFT_RESET);
	mdelay(15);
	WREG32(GRBM_SOFT_RESET, 0);
	RREG32(GRBM_SOFT_RESET);

	WREG32(CP_SEM_WAIT_TIMER, 0x4);

	/* Set the write pointer delay */
	WREG32(CP_RB_WPTR_DELAY, 0);

	WREG32(CP_DEBUG, (1 << 27));

	/* ring 0 - compute and gfx */
	/* Set ring buffer size */
	rb_bufsz = drm_order(rdev->cp.ring_size / 8);
	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
	tmp |= BUF_SWAP_32BIT;
#endif
	WREG32(CP_RB0_CNTL, tmp);

	/* Initialize the ring buffer's read and write pointers */
	WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
	WREG32(CP_RB0_WPTR, 0);

	/* set the wb address wether it's enabled or not */
	WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
	WREG32(CP_RB0_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);

	if (rdev->wb.enabled)
		WREG32(SCRATCH_UMSK, 0xff);
	else {
		tmp |= RB_NO_UPDATE;
		WREG32(SCRATCH_UMSK, 0);
	}

	mdelay(1);
	WREG32(CP_RB0_CNTL, tmp);

	WREG32(CP_RB0_BASE, rdev->cp.gpu_addr >> 8);

	rdev->cp.rptr = RREG32(CP_RB0_RPTR);
	rdev->cp.wptr = RREG32(CP_RB0_WPTR);

	/* ring1  - compute only */
	/* Set ring buffer size */
	rb_bufsz = drm_order(rdev->cp1.ring_size / 8);
	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
	tmp |= BUF_SWAP_32BIT;
#endif
	WREG32(CP_RB1_CNTL, tmp);

	/* Initialize the ring buffer's read and write pointers */
	WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
	WREG32(CP_RB1_WPTR, 0);

	/* set the wb address wether it's enabled or not */
	WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
	WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFF);

	mdelay(1);
	WREG32(CP_RB1_CNTL, tmp);

	WREG32(CP_RB1_BASE, rdev->cp1.gpu_addr >> 8);

	rdev->cp1.rptr = RREG32(CP_RB1_RPTR);
	rdev->cp1.wptr = RREG32(CP_RB1_WPTR);

	/* ring2 - compute only */
	/* Set ring buffer size */
	rb_bufsz = drm_order(rdev->cp2.ring_size / 8);
	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
#ifdef __BIG_ENDIAN
	tmp |= BUF_SWAP_32BIT;
#endif
	WREG32(CP_RB2_CNTL, tmp);

	/* Initialize the ring buffer's read and write pointers */
	WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
	WREG32(CP_RB2_WPTR, 0);

	/* set the wb address wether it's enabled or not */
	WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
	WREG32(CP_RB2_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFF);

	mdelay(1);
	WREG32(CP_RB2_CNTL, tmp);

	WREG32(CP_RB2_BASE, rdev->cp2.gpu_addr >> 8);

	rdev->cp2.rptr = RREG32(CP_RB2_RPTR);
	rdev->cp2.wptr = RREG32(CP_RB2_WPTR);

	/* start the rings */
	cayman_cp_start(rdev);
	rdev->cp.ready = true;
	rdev->cp1.ready = true;
	rdev->cp2.ready = true;
	/* this only test cp0 */
	r = radeon_ring_test(rdev);
	if (r) {
		rdev->cp.ready = false;
		rdev->cp1.ready = false;
		rdev->cp2.ready = false;
		return r;
	}

	return 0;
}

bool cayman_gpu_is_lockup(struct radeon_device *rdev)
{
	u32 srbm_status;
	u32 grbm_status;
	u32 grbm_status_se0, grbm_status_se1;
	struct r100_gpu_lockup *lockup = &rdev->config.cayman.lockup;
	int r;

	srbm_status = RREG32(SRBM_STATUS);
	grbm_status = RREG32(GRBM_STATUS);
	grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
	grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
	if (!(grbm_status & GUI_ACTIVE)) {
		r100_gpu_lockup_update(lockup, &rdev->cp);
		return false;
	}
	/* force CP activities */
	r = radeon_ring_lock(rdev, 2);
	if (!r) {
		/* PACKET2 NOP */
		radeon_ring_write(rdev, 0x80000000);
		radeon_ring_write(rdev, 0x80000000);
		radeon_ring_unlock_commit(rdev);
	}
	/* XXX deal with CP0,1,2 */
	rdev->cp.rptr = RREG32(CP_RB0_RPTR);
	return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
}

static int cayman_gpu_soft_reset(struct radeon_device *rdev)
{
	struct evergreen_mc_save save;
	u32 grbm_reset = 0;

	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
		return 0;

	dev_info(rdev->dev, "GPU softreset \n");
	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
		RREG32(GRBM_STATUS));
	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
		RREG32(GRBM_STATUS_SE0));
	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
		RREG32(GRBM_STATUS_SE1));
	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
		RREG32(SRBM_STATUS));
	evergreen_mc_stop(rdev, &save);
	if (evergreen_mc_wait_for_idle(rdev)) {
		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
	}
	/* Disable CP parsing/prefetching */
	WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);

	/* reset all the gfx blocks */
	grbm_reset = (SOFT_RESET_CP |
		      SOFT_RESET_CB |
		      SOFT_RESET_DB |
		      SOFT_RESET_GDS |
		      SOFT_RESET_PA |
		      SOFT_RESET_SC |
		      SOFT_RESET_SPI |
		      SOFT_RESET_SH |
		      SOFT_RESET_SX |
		      SOFT_RESET_TC |
		      SOFT_RESET_TA |
		      SOFT_RESET_VGT |
		      SOFT_RESET_IA);

	dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
	WREG32(GRBM_SOFT_RESET, grbm_reset);
	(void)RREG32(GRBM_SOFT_RESET);
	udelay(50);
	WREG32(GRBM_SOFT_RESET, 0);
	(void)RREG32(GRBM_SOFT_RESET);
	/* Wait a little for things to settle down */
	udelay(50);
	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
		RREG32(GRBM_STATUS));
	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
		RREG32(GRBM_STATUS_SE0));
	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
		RREG32(GRBM_STATUS_SE1));
	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
		RREG32(SRBM_STATUS));
	evergreen_mc_resume(rdev, &save);
	return 0;
}

int cayman_asic_reset(struct radeon_device *rdev)
{
	return cayman_gpu_soft_reset(rdev);
}

static int cayman_startup(struct radeon_device *rdev)
{
	int r;

	if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
		r = ni_init_microcode(rdev);
		if (r) {
			DRM_ERROR("Failed to load firmware!\n");
			return r;
		}
	}
	r = ni_mc_load_microcode(rdev);
	if (r) {
		DRM_ERROR("Failed to load MC firmware!\n");
		return r;
	}

	evergreen_mc_program(rdev);
	r = cayman_pcie_gart_enable(rdev);
	if (r)
		return r;
	cayman_gpu_init(rdev);

#if 0
	r = cayman_blit_init(rdev);
	if (r) {
		cayman_blit_fini(rdev);
		rdev->asic->copy = NULL;
		dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
	}
#endif

	/* allocate wb buffer */
	r = radeon_wb_init(rdev);
	if (r)
		return r;

	/* Enable IRQ */
	r = r600_irq_init(rdev);
	if (r) {
		DRM_ERROR("radeon: IH init failed (%d).\n", r);
		radeon_irq_kms_fini(rdev);
		return r;
	}
	evergreen_irq_set(rdev);

	r = radeon_ring_init(rdev, rdev->cp.ring_size);
	if (r)
		return r;
	r = cayman_cp_load_microcode(rdev);
	if (r)
		return r;
	r = cayman_cp_resume(rdev);
	if (r)
		return r;

	return 0;
}

int cayman_resume(struct radeon_device *rdev)
{
	int r;

	/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
	 * posting will perform necessary task to bring back GPU into good
	 * shape.
	 */
	/* post card */
	atom_asic_init(rdev->mode_info.atom_context);

	r = cayman_startup(rdev);
	if (r) {
		DRM_ERROR("cayman startup failed on resume\n");
		return r;
	}

	r = r600_ib_test(rdev);
	if (r) {
		DRM_ERROR("radeon: failled testing IB (%d).\n", r);
		return r;
	}

	return r;

}

int cayman_suspend(struct radeon_device *rdev)
{
	/* int r; */

	/* FIXME: we should wait for ring to be empty */
	cayman_cp_enable(rdev, false);
	rdev->cp.ready = false;
	evergreen_irq_suspend(rdev);
	radeon_wb_disable(rdev);
	cayman_pcie_gart_disable(rdev);

#if 0
	/* unpin shaders bo */
	r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
	if (likely(r == 0)) {
		radeon_bo_unpin(rdev->r600_blit.shader_obj);
		radeon_bo_unreserve(rdev->r600_blit.shader_obj);
	}
#endif
	return 0;
}

/* Plan is to move initialization in that function and use
 * helper function so that radeon_device_init pretty much
 * do nothing more than calling asic specific function. This
 * should also allow to remove a bunch of callback function
 * like vram_info.
 */
int cayman_init(struct radeon_device *rdev)
{
	int r;

	/* This don't do much */
	r = radeon_gem_init(rdev);
	if (r)
		return r;
	/* Read BIOS */
	if (!radeon_get_bios(rdev)) {
		if (ASIC_IS_AVIVO(rdev))
			return -EINVAL;
	}
	/* Must be an ATOMBIOS */
	if (!rdev->is_atom_bios) {
		dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
		return -EINVAL;
	}
	r = radeon_atombios_init(rdev);
	if (r)
		return r;

	/* Post card if necessary */
	if (!radeon_card_posted(rdev)) {
		if (!rdev->bios) {
			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
			return -EINVAL;
		}
		DRM_INFO("GPU not posted. posting now...\n");
		atom_asic_init(rdev->mode_info.atom_context);
	}
	/* Initialize scratch registers */
	r600_scratch_init(rdev);
	/* Initialize surface registers */
	radeon_surface_init(rdev);
	/* Initialize clocks */
	radeon_get_clock_info(rdev->ddev);
	/* Fence driver */
	r = radeon_fence_driver_init(rdev);
	if (r)
		return r;
	/* initialize memory controller */
	r = evergreen_mc_init(rdev);
	if (r)
		return r;
	/* Memory manager */
	r = radeon_bo_init(rdev);
	if (r)
		return r;

	r = radeon_irq_kms_init(rdev);
	if (r)
		return r;

	rdev->cp.ring_obj = NULL;
	r600_ring_init(rdev, 1024 * 1024);

	rdev->ih.ring_obj = NULL;
	r600_ih_ring_init(rdev, 64 * 1024);

	r = r600_pcie_gart_init(rdev);
	if (r)
		return r;

	rdev->accel_working = true;
	r = cayman_startup(rdev);
	if (r) {
		dev_err(rdev->dev, "disabling GPU acceleration\n");
		cayman_cp_fini(rdev);
		r600_irq_fini(rdev);
		radeon_wb_fini(rdev);
		radeon_irq_kms_fini(rdev);
		cayman_pcie_gart_fini(rdev);
		rdev->accel_working = false;
	}
	if (rdev->accel_working) {
		r = radeon_ib_pool_init(rdev);
		if (r) {
			DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
			rdev->accel_working = false;
		}
		r = r600_ib_test(rdev);
		if (r) {
			DRM_ERROR("radeon: failed testing IB (%d).\n", r);
			rdev->accel_working = false;
		}
	}

	/* Don't start up if the MC ucode is missing.
	 * The default clocks and voltages before the MC ucode
	 * is loaded are not suffient for advanced operations.
	 */
	if (!rdev->mc_fw) {
		DRM_ERROR("radeon: MC ucode required for NI+.\n");
		return -EINVAL;
	}

	return 0;
}

void cayman_fini(struct radeon_device *rdev)
{
	/* cayman_blit_fini(rdev); */
	cayman_cp_fini(rdev);
	r600_irq_fini(rdev);
	radeon_wb_fini(rdev);
	radeon_ib_pool_fini(rdev);
	radeon_irq_kms_fini(rdev);
	cayman_pcie_gart_fini(rdev);
	radeon_gem_fini(rdev);
	radeon_fence_driver_fini(rdev);
	radeon_bo_fini(rdev);
	radeon_atombios_fini(rdev);
	kfree(rdev->bios);
	rdev->bios = NULL;
}

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