/*
 * Copyright 2008 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * 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: Dave Airlie
 *          Alex Deucher
 *          Jerome Glisse
 */
#include <linux/firmware.h>
#include <linux/slab.h>
#include <drm/drmP.h>
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_audio.h"
#include <drm/radeon_drm.h>
#include "rv770d.h"
#include "atom.h"
#include "avivod.h"

#define R700_PFP_UCODE_SIZE 848
#define R700_PM4_UCODE_SIZE 1360

static void rv770_gpu_init(struct radeon_device *rdev);
void rv770_fini(struct radeon_device *rdev);
static void rv770_pcie_gen2_enable(struct radeon_device *rdev);
int evergreen_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);

int rv770_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
{
        unsigned fb_div = 0, vclk_div = 0, dclk_div = 0;
        int r;

        /* RV740 uses evergreen uvd clk programming */
        if (rdev->family == CHIP_RV740)
                return evergreen_set_uvd_clocks(rdev, vclk, dclk);

        /* bypass vclk and dclk with bclk */
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                 VCLK_SRC_SEL(1) | DCLK_SRC_SEL(1),
                 ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));

        if (!vclk || !dclk) {
                /* keep the Bypass mode, put PLL to sleep */
                WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK);
                return 0;
        }

        r = radeon_uvd_calc_upll_dividers(rdev, vclk, dclk, 50000, 160000,
                                          43663, 0x03FFFFFE, 1, 30, ~0,
                                          &fb_div, &vclk_div, &dclk_div);
        if (r)
                return r;

        fb_div |= 1;
        vclk_div -= 1;
        dclk_div -= 1;

        /* set UPLL_FB_DIV to 0x50000 */
        WREG32_P(CG_UPLL_FUNC_CNTL_3, UPLL_FB_DIV(0x50000), ~UPLL_FB_DIV_MASK);

        /* deassert UPLL_RESET and UPLL_SLEEP */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~(UPLL_RESET_MASK | UPLL_SLEEP_MASK));

        /* assert BYPASS EN and FB_DIV[0] <- ??? why? */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~UPLL_BYPASS_EN_MASK);
        WREG32_P(CG_UPLL_FUNC_CNTL_3, UPLL_FB_DIV(1), ~UPLL_FB_DIV(1));

        r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
        if (r)
                return r;

        /* assert PLL_RESET */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_RESET_MASK, ~UPLL_RESET_MASK);

        /* set the required FB_DIV, REF_DIV, Post divder values */
        WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_REF_DIV(1), ~UPLL_REF_DIV_MASK);
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                 UPLL_SW_HILEN(vclk_div >> 1) |
                 UPLL_SW_LOLEN((vclk_div >> 1) + (vclk_div & 1)) |
                 UPLL_SW_HILEN2(dclk_div >> 1) |
                 UPLL_SW_LOLEN2((dclk_div >> 1) + (dclk_div & 1)),
                 ~UPLL_SW_MASK);

        WREG32_P(CG_UPLL_FUNC_CNTL_3, UPLL_FB_DIV(fb_div),
                 ~UPLL_FB_DIV_MASK);

        /* give the PLL some time to settle */
        mdelay(15);

        /* deassert PLL_RESET */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);

        mdelay(15);

        /* deassert BYPASS EN and FB_DIV[0] <- ??? why? */
        WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_BYPASS_EN_MASK);
        WREG32_P(CG_UPLL_FUNC_CNTL_3, 0, ~UPLL_FB_DIV(1));

        r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
        if (r)
                return r;

        /* switch VCLK and DCLK selection */
        WREG32_P(CG_UPLL_FUNC_CNTL_2,
                 VCLK_SRC_SEL(2) | DCLK_SRC_SEL(2),
                 ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));

        mdelay(100);

        return 0;
}

static const u32 r7xx_golden_registers[] =
{
        0x8d00, 0xffffffff, 0x0e0e0074,
        0x8d04, 0xffffffff, 0x013a2b34,
        0x9508, 0xffffffff, 0x00000002,
        0x8b20, 0xffffffff, 0,
        0x88c4, 0xffffffff, 0x000000c2,
        0x28350, 0xffffffff, 0,
        0x9058, 0xffffffff, 0x0fffc40f,
        0x240c, 0xffffffff, 0x00000380,
        0x733c, 0xffffffff, 0x00000002,
        0x2650, 0x00040000, 0,
        0x20bc, 0x00040000, 0,
        0x7300, 0xffffffff, 0x001000f0
};

static const u32 r7xx_golden_dyn_gpr_registers[] =
{
        0x8db0, 0xffffffff, 0x98989898,
        0x8db4, 0xffffffff, 0x98989898,
        0x8db8, 0xffffffff, 0x98989898,
        0x8dbc, 0xffffffff, 0x98989898,
        0x8dc0, 0xffffffff, 0x98989898,
        0x8dc4, 0xffffffff, 0x98989898,
        0x8dc8, 0xffffffff, 0x98989898,
        0x8dcc, 0xffffffff, 0x98989898,
        0x88c4, 0xffffffff, 0x00000082
};

static const u32 rv770_golden_registers[] =
{
        0x562c, 0xffffffff, 0,
        0x3f90, 0xffffffff, 0,
        0x9148, 0xffffffff, 0,
        0x3f94, 0xffffffff, 0,
        0x914c, 0xffffffff, 0,
        0x9698, 0x18000000, 0x18000000
};

static const u32 rv770ce_golden_registers[] =
{
        0x562c, 0xffffffff, 0,
        0x3f90, 0xffffffff, 0x00cc0000,
        0x9148, 0xffffffff, 0x00cc0000,
        0x3f94, 0xffffffff, 0x00cc0000,
        0x914c, 0xffffffff, 0x00cc0000,
        0x9b7c, 0xffffffff, 0x00fa0000,
        0x3f8c, 0xffffffff, 0x00fa0000,
        0x9698, 0x18000000, 0x18000000
};

static const u32 rv770_mgcg_init[] =
{
        0x8bcc, 0xffffffff, 0x130300f9,
        0x5448, 0xffffffff, 0x100,
        0x55e4, 0xffffffff, 0x100,
        0x160c, 0xffffffff, 0x100,
        0x5644, 0xffffffff, 0x100,
        0xc164, 0xffffffff, 0x100,
        0x8a18, 0xffffffff, 0x100,
        0x897c, 0xffffffff, 0x8000100,
        0x8b28, 0xffffffff, 0x3c000100,
        0x9144, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10000,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10001,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10002,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10003,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x0,
        0x9870, 0xffffffff, 0x100,
        0x8d58, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x0,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x1,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x2,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x3,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x4,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x5,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x6,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x7,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x8,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x9,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x8000,
        0x9490, 0xffffffff, 0x0,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x1,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x2,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x3,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x4,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x5,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x6,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x7,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x8,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x9,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x8000,
        0x9604, 0xffffffff, 0x0,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x1,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x2,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x3,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x4,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x5,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x6,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x7,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x8,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x9,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x80000000,
        0x9030, 0xffffffff, 0x100,
        0x9034, 0xffffffff, 0x100,
        0x9038, 0xffffffff, 0x100,
        0x903c, 0xffffffff, 0x100,
        0x9040, 0xffffffff, 0x100,
        0xa200, 0xffffffff, 0x100,
        0xa204, 0xffffffff, 0x100,
        0xa208, 0xffffffff, 0x100,
        0xa20c, 0xffffffff, 0x100,
        0x971c, 0xffffffff, 0x100,
        0x915c, 0xffffffff, 0x00020001,
        0x9160, 0xffffffff, 0x00040003,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00080007,
        0x9174, 0xffffffff, 0x000a0009,
        0x9178, 0xffffffff, 0x000c000b,
        0x917c, 0xffffffff, 0x000e000d,
        0x9180, 0xffffffff, 0x0010000f,
        0x918c, 0xffffffff, 0x00120011,
        0x9190, 0xffffffff, 0x00140013,
        0x9194, 0xffffffff, 0x00020001,
        0x9198, 0xffffffff, 0x00040003,
        0x919c, 0xffffffff, 0x00060005,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000a0009,
        0x91b0, 0xffffffff, 0x000c000b,
        0x91b4, 0xffffffff, 0x000e000d,
        0x91b8, 0xffffffff, 0x0010000f,
        0x91c4, 0xffffffff, 0x00120011,
        0x91c8, 0xffffffff, 0x00140013,
        0x91cc, 0xffffffff, 0x00020001,
        0x91d0, 0xffffffff, 0x00040003,
        0x91d4, 0xffffffff, 0x00060005,
        0x91e0, 0xffffffff, 0x00080007,
        0x91e4, 0xffffffff, 0x000a0009,
        0x91e8, 0xffffffff, 0x000c000b,
        0x91ec, 0xffffffff, 0x00020001,
        0x91f0, 0xffffffff, 0x00040003,
        0x91f4, 0xffffffff, 0x00060005,
        0x9200, 0xffffffff, 0x00080007,
        0x9204, 0xffffffff, 0x000a0009,
        0x9208, 0xffffffff, 0x000c000b,
        0x920c, 0xffffffff, 0x000e000d,
        0x9210, 0xffffffff, 0x0010000f,
        0x921c, 0xffffffff, 0x00120011,
        0x9220, 0xffffffff, 0x00140013,
        0x9224, 0xffffffff, 0x00020001,
        0x9228, 0xffffffff, 0x00040003,
        0x922c, 0xffffffff, 0x00060005,
        0x9238, 0xffffffff, 0x00080007,
        0x923c, 0xffffffff, 0x000a0009,
        0x9240, 0xffffffff, 0x000c000b,
        0x9244, 0xffffffff, 0x000e000d,
        0x9248, 0xffffffff, 0x0010000f,
        0x9254, 0xffffffff, 0x00120011,
        0x9258, 0xffffffff, 0x00140013,
        0x925c, 0xffffffff, 0x00020001,
        0x9260, 0xffffffff, 0x00040003,
        0x9264, 0xffffffff, 0x00060005,
        0x9270, 0xffffffff, 0x00080007,
        0x9274, 0xffffffff, 0x000a0009,
        0x9278, 0xffffffff, 0x000c000b,
        0x927c, 0xffffffff, 0x000e000d,
        0x9280, 0xffffffff, 0x0010000f,
        0x928c, 0xffffffff, 0x00120011,
        0x9290, 0xffffffff, 0x00140013,
        0x9294, 0xffffffff, 0x00020001,
        0x929c, 0xffffffff, 0x00040003,
        0x92a0, 0xffffffff, 0x00060005,
        0x92a4, 0xffffffff, 0x00080007
};

static const u32 rv710_golden_registers[] =
{
        0x3f90, 0x00ff0000, 0x00fc0000,
        0x9148, 0x00ff0000, 0x00fc0000,
        0x3f94, 0x00ff0000, 0x00fc0000,
        0x914c, 0x00ff0000, 0x00fc0000,
        0xb4c, 0x00000020, 0x00000020,
        0xa180, 0xffffffff, 0x00003f3f
};

static const u32 rv710_mgcg_init[] =
{
        0x8bcc, 0xffffffff, 0x13030040,
        0x5448, 0xffffffff, 0x100,
        0x55e4, 0xffffffff, 0x100,
        0x160c, 0xffffffff, 0x100,
        0x5644, 0xffffffff, 0x100,
        0xc164, 0xffffffff, 0x100,
        0x8a18, 0xffffffff, 0x100,
        0x897c, 0xffffffff, 0x8000100,
        0x8b28, 0xffffffff, 0x3c000100,
        0x9144, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10000,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x0,
        0x9870, 0xffffffff, 0x100,
        0x8d58, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x0,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x1,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x8000,
        0x9490, 0xffffffff, 0x0,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x1,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x8000,
        0x9604, 0xffffffff, 0x0,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x1,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x80000000,
        0x9030, 0xffffffff, 0x100,
        0x9034, 0xffffffff, 0x100,
        0x9038, 0xffffffff, 0x100,
        0x903c, 0xffffffff, 0x100,
        0x9040, 0xffffffff, 0x100,
        0xa200, 0xffffffff, 0x100,
        0xa204, 0xffffffff, 0x100,
        0xa208, 0xffffffff, 0x100,
        0xa20c, 0xffffffff, 0x100,
        0x971c, 0xffffffff, 0x100,
        0x915c, 0xffffffff, 0x00020001,
        0x9174, 0xffffffff, 0x00000003,
        0x9178, 0xffffffff, 0x00050001,
        0x917c, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00000004,
        0x9190, 0xffffffff, 0x00070006,
        0x9194, 0xffffffff, 0x00050001,
        0x9198, 0xffffffff, 0x00030002,
        0x91a8, 0xffffffff, 0x00000004,
        0x91ac, 0xffffffff, 0x00070006,
        0x91e8, 0xffffffff, 0x00000001,
        0x9294, 0xffffffff, 0x00000001,
        0x929c, 0xffffffff, 0x00000002,
        0x92a0, 0xffffffff, 0x00040003,
        0x9150, 0xffffffff, 0x4d940000
};

static const u32 rv730_golden_registers[] =
{
        0x3f90, 0x00ff0000, 0x00f00000,
        0x9148, 0x00ff0000, 0x00f00000,
        0x3f94, 0x00ff0000, 0x00f00000,
        0x914c, 0x00ff0000, 0x00f00000,
        0x900c, 0xffffffff, 0x003b033f,
        0xb4c, 0x00000020, 0x00000020,
        0xa180, 0xffffffff, 0x00003f3f
};

static const u32 rv730_mgcg_init[] =
{
        0x8bcc, 0xffffffff, 0x130300f9,
        0x5448, 0xffffffff, 0x100,
        0x55e4, 0xffffffff, 0x100,
        0x160c, 0xffffffff, 0x100,
        0x5644, 0xffffffff, 0x100,
        0xc164, 0xffffffff, 0x100,
        0x8a18, 0xffffffff, 0x100,
        0x897c, 0xffffffff, 0x8000100,
        0x8b28, 0xffffffff, 0x3c000100,
        0x9144, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10000,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10001,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x0,
        0x9870, 0xffffffff, 0x100,
        0x8d58, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x0,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x1,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x2,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x3,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x4,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x5,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x6,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x7,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x8000,
        0x9490, 0xffffffff, 0x0,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x1,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x2,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x3,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x4,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x5,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x6,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x7,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x8000,
        0x9604, 0xffffffff, 0x0,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x1,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x2,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x3,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x4,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x5,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x6,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x7,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x80000000,
        0x9030, 0xffffffff, 0x100,
        0x9034, 0xffffffff, 0x100,
        0x9038, 0xffffffff, 0x100,
        0x903c, 0xffffffff, 0x100,
        0x9040, 0xffffffff, 0x100,
        0xa200, 0xffffffff, 0x100,
        0xa204, 0xffffffff, 0x100,
        0xa208, 0xffffffff, 0x100,
        0xa20c, 0xffffffff, 0x100,
        0x971c, 0xffffffff, 0x100,
        0x915c, 0xffffffff, 0x00020001,
        0x916c, 0xffffffff, 0x00040003,
        0x9170, 0xffffffff, 0x00000005,
        0x9178, 0xffffffff, 0x00050001,
        0x917c, 0xffffffff, 0x00030002,
        0x918c, 0xffffffff, 0x00000004,
        0x9190, 0xffffffff, 0x00070006,
        0x9194, 0xffffffff, 0x00050001,
        0x9198, 0xffffffff, 0x00030002,
        0x91a8, 0xffffffff, 0x00000004,
        0x91ac, 0xffffffff, 0x00070006,
        0x91b0, 0xffffffff, 0x00050001,
        0x91b4, 0xffffffff, 0x00030002,
        0x91c4, 0xffffffff, 0x00000004,
        0x91c8, 0xffffffff, 0x00070006,
        0x91cc, 0xffffffff, 0x00050001,
        0x91d0, 0xffffffff, 0x00030002,
        0x91e0, 0xffffffff, 0x00000004,
        0x91e4, 0xffffffff, 0x00070006,
        0x91e8, 0xffffffff, 0x00000001,
        0x91ec, 0xffffffff, 0x00050001,
        0x91f0, 0xffffffff, 0x00030002,
        0x9200, 0xffffffff, 0x00000004,
        0x9204, 0xffffffff, 0x00070006,
        0x9208, 0xffffffff, 0x00050001,
        0x920c, 0xffffffff, 0x00030002,
        0x921c, 0xffffffff, 0x00000004,
        0x9220, 0xffffffff, 0x00070006,
        0x9224, 0xffffffff, 0x00050001,
        0x9228, 0xffffffff, 0x00030002,
        0x9238, 0xffffffff, 0x00000004,
        0x923c, 0xffffffff, 0x00070006,
        0x9240, 0xffffffff, 0x00050001,
        0x9244, 0xffffffff, 0x00030002,
        0x9254, 0xffffffff, 0x00000004,
        0x9258, 0xffffffff, 0x00070006,
        0x9294, 0xffffffff, 0x00000001,
        0x929c, 0xffffffff, 0x00000002,
        0x92a0, 0xffffffff, 0x00040003,
        0x92a4, 0xffffffff, 0x00000005
};

static const u32 rv740_golden_registers[] =
{
        0x88c4, 0xffffffff, 0x00000082,
        0x28a50, 0xfffffffc, 0x00000004,
        0x2650, 0x00040000, 0,
        0x20bc, 0x00040000, 0,
        0x733c, 0xffffffff, 0x00000002,
        0x7300, 0xffffffff, 0x001000f0,
        0x3f90, 0x00ff0000, 0,
        0x9148, 0x00ff0000, 0,
        0x3f94, 0x00ff0000, 0,
        0x914c, 0x00ff0000, 0,
        0x240c, 0xffffffff, 0x00000380,
        0x8a14, 0x00000007, 0x00000007,
        0x8b24, 0xffffffff, 0x00ff0fff,
        0x28a4c, 0xffffffff, 0x00004000,
        0xa180, 0xffffffff, 0x00003f3f,
        0x8d00, 0xffffffff, 0x0e0e003a,
        0x8d04, 0xffffffff, 0x013a0e2a,
        0x8c00, 0xffffffff, 0xe400000f,
        0x8db0, 0xffffffff, 0x98989898,
        0x8db4, 0xffffffff, 0x98989898,
        0x8db8, 0xffffffff, 0x98989898,
        0x8dbc, 0xffffffff, 0x98989898,
        0x8dc0, 0xffffffff, 0x98989898,
        0x8dc4, 0xffffffff, 0x98989898,
        0x8dc8, 0xffffffff, 0x98989898,
        0x8dcc, 0xffffffff, 0x98989898,
        0x9058, 0xffffffff, 0x0fffc40f,
        0x900c, 0xffffffff, 0x003b033f,
        0x28350, 0xffffffff, 0,
        0x8cf0, 0x1fffffff, 0x08e00420,
        0x9508, 0xffffffff, 0x00000002,
        0x88c4, 0xffffffff, 0x000000c2,
        0x9698, 0x18000000, 0x18000000
};

static const u32 rv740_mgcg_init[] =
{
        0x8bcc, 0xffffffff, 0x13030100,
        0x5448, 0xffffffff, 0x100,
        0x55e4, 0xffffffff, 0x100,
        0x160c, 0xffffffff, 0x100,
        0x5644, 0xffffffff, 0x100,
        0xc164, 0xffffffff, 0x100,
        0x8a18, 0xffffffff, 0x100,
        0x897c, 0xffffffff, 0x100,
        0x8b28, 0xffffffff, 0x100,
        0x9144, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10000,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10001,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10002,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x10003,
        0x9a50, 0xffffffff, 0x100,
        0x9a1c, 0xffffffff, 0x0,
        0x9870, 0xffffffff, 0x100,
        0x8d58, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x0,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x1,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x2,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x3,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x4,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x5,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x6,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x7,
        0x9510, 0xffffffff, 0x100,
        0x9500, 0xffffffff, 0x8000,
        0x9490, 0xffffffff, 0x0,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x1,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x2,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x3,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x4,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x5,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x6,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x7,
        0x949c, 0xffffffff, 0x100,
        0x9490, 0xffffffff, 0x8000,
        0x9604, 0xffffffff, 0x0,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x1,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x2,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x3,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x4,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x5,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x6,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x7,
        0x9654, 0xffffffff, 0x100,
        0x9604, 0xffffffff, 0x80000000,
        0x9030, 0xffffffff, 0x100,
        0x9034, 0xffffffff, 0x100,
        0x9038, 0xffffffff, 0x100,
        0x903c, 0xffffffff, 0x100,
        0x9040, 0xffffffff, 0x100,
        0xa200, 0xffffffff, 0x100,
        0xa204, 0xffffffff, 0x100,
        0xa208, 0xffffffff, 0x100,
        0xa20c, 0xffffffff, 0x100,
        0x971c, 0xffffffff, 0x100,
        0x915c, 0xffffffff, 0x00020001,
        0x9160, 0xffffffff, 0x00040003,
        0x916c, 0xffffffff, 0x00060005,
        0x9170, 0xffffffff, 0x00080007,
        0x9174, 0xffffffff, 0x000a0009,
        0x9178, 0xffffffff, 0x000c000b,
        0x917c, 0xffffffff, 0x000e000d,
        0x9180, 0xffffffff, 0x0010000f,
        0x918c, 0xffffffff, 0x00120011,
        0x9190, 0xffffffff, 0x00140013,
        0x9194, 0xffffffff, 0x00020001,
        0x9198, 0xffffffff, 0x00040003,
        0x919c, 0xffffffff, 0x00060005,
        0x91a8, 0xffffffff, 0x00080007,
        0x91ac, 0xffffffff, 0x000a0009,
        0x91b0, 0xffffffff, 0x000c000b,
        0x91b4, 0xffffffff, 0x000e000d,
        0x91b8, 0xffffffff, 0x0010000f,
        0x91c4, 0xffffffff, 0x00120011,
        0x91c8, 0xffffffff, 0x00140013,
        0x91cc, 0xffffffff, 0x00020001,
        0x91d0, 0xffffffff, 0x00040003,
        0x91d4, 0xffffffff, 0x00060005,
        0x91e0, 0xffffffff, 0x00080007,
        0x91e4, 0xffffffff, 0x000a0009,
        0x91e8, 0xffffffff, 0x000c000b,
        0x91ec, 0xffffffff, 0x00020001,
        0x91f0, 0xffffffff, 0x00040003,
        0x91f4, 0xffffffff, 0x00060005,
        0x9200, 0xffffffff, 0x00080007,
        0x9204, 0xffffffff, 0x000a0009,
        0x9208, 0xffffffff, 0x000c000b,
        0x920c, 0xffffffff, 0x000e000d,
        0x9210, 0xffffffff, 0x0010000f,
        0x921c, 0xffffffff, 0x00120011,
        0x9220, 0xffffffff, 0x00140013,
        0x9224, 0xffffffff, 0x00020001,
        0x9228, 0xffffffff, 0x00040003,
        0x922c, 0xffffffff, 0x00060005,
        0x9238, 0xffffffff, 0x00080007,
        0x923c, 0xffffffff, 0x000a0009,
        0x9240, 0xffffffff, 0x000c000b,
        0x9244, 0xffffffff, 0x000e000d,
        0x9248, 0xffffffff, 0x0010000f,
        0x9254, 0xffffffff, 0x00120011,
        0x9258, 0xffffffff, 0x00140013,
        0x9294, 0xffffffff, 0x00020001,
        0x929c, 0xffffffff, 0x00040003,
        0x92a0, 0xffffffff, 0x00060005,
        0x92a4, 0xffffffff, 0x00080007
};

static void rv770_init_golden_registers(struct radeon_device *rdev)
{
        switch (rdev->family) {
        case CHIP_RV770:
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_dyn_gpr_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers));
                if (rdev->pdev->device == 0x994e)
                        radeon_program_register_sequence(rdev,
                                                         rv770ce_golden_registers,
                                                         (const u32)ARRAY_SIZE(rv770ce_golden_registers));
                else
                        radeon_program_register_sequence(rdev,
                                                         rv770_golden_registers,
                                                         (const u32)ARRAY_SIZE(rv770_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 rv770_mgcg_init,
                                                 (const u32)ARRAY_SIZE(rv770_mgcg_init));
                break;
        case CHIP_RV730:
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_dyn_gpr_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers));
                radeon_program_register_sequence(rdev,
                                                 rv730_golden_registers,
                                                 (const u32)ARRAY_SIZE(rv730_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 rv730_mgcg_init,
                                                 (const u32)ARRAY_SIZE(rv730_mgcg_init));
                break;
        case CHIP_RV710:
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 r7xx_golden_dyn_gpr_registers,
                                                 (const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers));
                radeon_program_register_sequence(rdev,
                                                 rv710_golden_registers,
                                                 (const u32)ARRAY_SIZE(rv710_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 rv710_mgcg_init,
                                                 (const u32)ARRAY_SIZE(rv710_mgcg_init));
                break;
        case CHIP_RV740:
                radeon_program_register_sequence(rdev,
                                                 rv740_golden_registers,
                                                 (const u32)ARRAY_SIZE(rv740_golden_registers));
                radeon_program_register_sequence(rdev,
                                                 rv740_mgcg_init,
                                                 (const u32)ARRAY_SIZE(rv740_mgcg_init));
                break;
        default:
                break;
        }
}

#define PCIE_BUS_CLK                10000
#define TCLK                        (PCIE_BUS_CLK / 10)

/**
 * rv770_get_xclk - get the xclk
 *
 * @rdev: radeon_device pointer
 *
 * Returns the reference clock used by the gfx engine
 * (r7xx-cayman).
 */
u32 rv770_get_xclk(struct radeon_device *rdev)
{
        u32 reference_clock = rdev->clock.spll.reference_freq;
        u32 tmp = RREG32(CG_CLKPIN_CNTL);

        if (tmp & MUX_TCLK_TO_XCLK)
                return TCLK;

        if (tmp & XTALIN_DIVIDE)
                return reference_clock / 4;

        return reference_clock;
}

void rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
{
        struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
        u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
        int i;

        /* Lock the graphics update lock */
        tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);

        /* update the scanout addresses */
        if (radeon_crtc->crtc_id) {
                WREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
                WREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
        } else {
                WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
                WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
        }
        WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
               (u32)crtc_base);
        WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
               (u32)crtc_base);

        /* Wait for update_pending to go high. */
        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING)
                        break;
                udelay(1);
        }
        DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");

        /* Unlock the lock, so double-buffering can take place inside vblank */
        tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
}

bool rv770_page_flip_pending(struct radeon_device *rdev, int crtc_id)
{
        struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];

        /* Return current update_pending status: */
        return !!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) &
                AVIVO_D1GRPH_SURFACE_UPDATE_PENDING);
}

/* get temperature in millidegrees */
int rv770_get_temp(struct radeon_device *rdev)
{
        u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
                ASIC_T_SHIFT;
        int actual_temp;

        if (temp & 0x400)
                actual_temp = -256;
        else if (temp & 0x200)
                actual_temp = 255;
        else if (temp & 0x100) {
                actual_temp = temp & 0x1ff;
                actual_temp |= ~0x1ff;
        } else
                actual_temp = temp & 0xff;

        return (actual_temp * 1000) / 2;
}

void rv770_pm_misc(struct radeon_device *rdev)
{
        int req_ps_idx = rdev->pm.requested_power_state_index;
        int req_cm_idx = rdev->pm.requested_clock_mode_index;
        struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
        struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;

        if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
                /* 0xff01 is a flag rather then an actual voltage */
                if (voltage->voltage == 0xff01)
                        return;
                if (voltage->voltage != rdev->pm.current_vddc) {
                        radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC);
                        rdev->pm.current_vddc = voltage->voltage;
                        DRM_DEBUG("Setting: v: %d\n", voltage->voltage);
                }
        }
}

/*
 * GART
 */
static int rv770_pcie_gart_enable(struct radeon_device *rdev)
{
        u32 tmp;
        int r, i;

        if (rdev->gart.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;
        /* Setup L2 cache */
        WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
                                ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
                                EFFECTIVE_L2_QUEUE_SIZE(7));
        WREG32(VM_L2_CNTL2, 0);
        WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
        /* Setup TLB control */
        tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
                SYSTEM_ACCESS_MODE_NOT_IN_SYS |
                SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
                EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
        WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
        if (rdev->family == CHIP_RV740)
                WREG32(MC_VM_MD_L1_TLB3_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
        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_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
                                RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
        WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
                        (u32)(rdev->dummy_page.addr >> 12));
        for (i = 1; i < 7; i++)
                WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);

        r600_pcie_gart_tlb_flush(rdev);
        DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
                 (unsigned)(rdev->mc.gtt_size >> 20),
                 (unsigned long long)rdev->gart.table_addr);
        rdev->gart.ready = true;
        return 0;
}

static void rv770_pcie_gart_disable(struct radeon_device *rdev)
{
        u32 tmp;
        int i;

        /* Disable all tables */
        for (i = 0; i < 7; i++)
                WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);

        /* Setup L2 cache */
        WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
                                EFFECTIVE_L2_QUEUE_SIZE(7));
        WREG32(VM_L2_CNTL2, 0);
        WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
        /* Setup TLB control */
        tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
        WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
        radeon_gart_table_vram_unpin(rdev);
}

static void rv770_pcie_gart_fini(struct radeon_device *rdev)
{
        radeon_gart_fini(rdev);
        rv770_pcie_gart_disable(rdev);
        radeon_gart_table_vram_free(rdev);
}


static void rv770_agp_enable(struct radeon_device *rdev)
{
        u32 tmp;
        int i;

        /* Setup L2 cache */
        WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
                                ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
                                EFFECTIVE_L2_QUEUE_SIZE(7));
        WREG32(VM_L2_CNTL2, 0);
        WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
        /* Setup TLB control */
        tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
                SYSTEM_ACCESS_MODE_NOT_IN_SYS |
                SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
                EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
        WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
        WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
        for (i = 0; i < 7; i++)
                WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
}

static void rv770_mc_program(struct radeon_device *rdev)
{
        struct rv515_mc_save save;
        u32 tmp;
        int i, j;

        /* 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);
        }
        /* r7xx hw bug.  Read from HDP_DEBUG1 rather
         * than writing to HDP_REG_COHERENCY_FLUSH_CNTL
         */
        tmp = RREG32(HDP_DEBUG1);

        rv515_mc_stop(rdev, &save);
        if (r600_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
        }
        /* Lockout access through VGA aperture*/
        WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
        /* Update configuration */
        if (rdev->flags & RADEON_IS_AGP) {
                if (rdev->mc.vram_start < rdev->mc.gtt_start) {
                        /* VRAM before AGP */
                        WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
                                rdev->mc.vram_start >> 12);
                        WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
                                rdev->mc.gtt_end >> 12);
                } else {
                        /* VRAM after AGP */
                        WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
                                rdev->mc.gtt_start >> 12);
                        WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
                                rdev->mc.vram_end >> 12);
                }
        } else {
                WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
                        rdev->mc.vram_start >> 12);
                WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
                        rdev->mc.vram_end >> 12);
        }
        WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, rdev->vram_scratch.gpu_addr >> 12);
        tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
        tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
        WREG32(MC_VM_FB_LOCATION, tmp);
        WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
        WREG32(HDP_NONSURFACE_INFO, (2 << 7));
        WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
        if (rdev->flags & RADEON_IS_AGP) {
                WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
                WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
                WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
        } else {
                WREG32(MC_VM_AGP_BASE, 0);
                WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
                WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
        }
        if (r600_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
        }
        rv515_mc_resume(rdev, &save);
        /* we need to own VRAM, so turn off the VGA renderer here
         * to stop it overwriting our objects */
        rv515_vga_render_disable(rdev);
}


/*
 * CP.
 */
void r700_cp_stop(struct radeon_device *rdev)
{
        if (rdev->asic->copy.copy_ring_index == RADEON_RING_TYPE_GFX_INDEX)
                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);
        rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
}

static int rv770_cp_load_microcode(struct radeon_device *rdev)
{
        const __be32 *fw_data;
        int i;

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

        r700_cp_stop(rdev);
        WREG32(CP_RB_CNTL,
#ifdef __BIG_ENDIAN
               BUF_SWAP_32BIT |
#endif
               RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));

        /* Reset cp */
        WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
        RREG32(GRBM_SOFT_RESET);
        mdelay(15);
        WREG32(GRBM_SOFT_RESET, 0);

        fw_data = (const __be32 *)rdev->pfp_fw->data;
        WREG32(CP_PFP_UCODE_ADDR, 0);
        for (i = 0; i < R700_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 < R700_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;
}

void r700_cp_fini(struct radeon_device *rdev)
{
        struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        r700_cp_stop(rdev);
        radeon_ring_fini(rdev, ring);
        radeon_scratch_free(rdev, ring->rptr_save_reg);
}

void rv770_set_clk_bypass_mode(struct radeon_device *rdev)
{
        u32 tmp, i;

        if (rdev->flags & RADEON_IS_IGP)
                return;

        tmp = RREG32(CG_SPLL_FUNC_CNTL_2);
        tmp &= SCLK_MUX_SEL_MASK;
        tmp |= SCLK_MUX_SEL(1) | SCLK_MUX_UPDATE;
        WREG32(CG_SPLL_FUNC_CNTL_2, tmp);

        for (i = 0; i < rdev->usec_timeout; i++) {
                if (RREG32(CG_SPLL_STATUS) & SPLL_CHG_STATUS)
                        break;
                udelay(1);
        }

        tmp &= ~SCLK_MUX_UPDATE;
        WREG32(CG_SPLL_FUNC_CNTL_2, tmp);

        tmp = RREG32(MPLL_CNTL_MODE);
        if ((rdev->family == CHIP_RV710) || (rdev->family == CHIP_RV730))
                tmp &= ~RV730_MPLL_MCLK_SEL;
        else
                tmp &= ~MPLL_MCLK_SEL;
        WREG32(MPLL_CNTL_MODE, tmp);
}

/*
 * Core functions
 */
static void rv770_gpu_init(struct radeon_device *rdev)
{
        int i, j, num_qd_pipes;
        u32 ta_aux_cntl;
        u32 sx_debug_1;
        u32 smx_dc_ctl0;
        u32 db_debug3;
        u32 num_gs_verts_per_thread;
        u32 vgt_gs_per_es;
        u32 gs_prim_buffer_depth = 0;
        u32 sq_ms_fifo_sizes;
        u32 sq_config;
        u32 sq_thread_resource_mgmt;
        u32 hdp_host_path_cntl;
        u32 sq_dyn_gpr_size_simd_ab_0;
        u32 gb_tiling_config = 0;
        u32 cc_gc_shader_pipe_config = 0;
        u32 mc_arb_ramcfg;
        u32 db_debug4, tmp;
        u32 inactive_pipes, shader_pipe_config;
        u32 disabled_rb_mask;
        unsigned active_number;

        /* setup chip specs */
        rdev->config.rv770.tiling_group_size = 256;
        switch (rdev->family) {
        case CHIP_RV770:
                rdev->config.rv770.max_pipes = 4;
                rdev->config.rv770.max_tile_pipes = 8;
                rdev->config.rv770.max_simds = 10;
                rdev->config.rv770.max_backends = 4;
                rdev->config.rv770.max_gprs = 256;
                rdev->config.rv770.max_threads = 248;
                rdev->config.rv770.max_stack_entries = 512;
                rdev->config.rv770.max_hw_contexts = 8;
                rdev->config.rv770.max_gs_threads = 16 * 2;
                rdev->config.rv770.sx_max_export_size = 128;
                rdev->config.rv770.sx_max_export_pos_size = 16;
                rdev->config.rv770.sx_max_export_smx_size = 112;
                rdev->config.rv770.sq_num_cf_insts = 2;

                rdev->config.rv770.sx_num_of_sets = 7;
                rdev->config.rv770.sc_prim_fifo_size = 0xF9;
                rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
                break;
        case CHIP_RV730:
                rdev->config.rv770.max_pipes = 2;
                rdev->config.rv770.max_tile_pipes = 4;
                rdev->config.rv770.max_simds = 8;
                rdev->config.rv770.max_backends = 2;
                rdev->config.rv770.max_gprs = 128;
                rdev->config.rv770.max_threads = 248;
                rdev->config.rv770.max_stack_entries = 256;
                rdev->config.rv770.max_hw_contexts = 8;
                rdev->config.rv770.max_gs_threads = 16 * 2;
                rdev->config.rv770.sx_max_export_size = 256;
                rdev->config.rv770.sx_max_export_pos_size = 32;
                rdev->config.rv770.sx_max_export_smx_size = 224;
                rdev->config.rv770.sq_num_cf_insts = 2;

                rdev->config.rv770.sx_num_of_sets = 7;
                rdev->config.rv770.sc_prim_fifo_size = 0xf9;
                rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
                if (rdev->config.rv770.sx_max_export_pos_size > 16) {
                        rdev->config.rv770.sx_max_export_pos_size -= 16;
                        rdev->config.rv770.sx_max_export_smx_size += 16;
                }
                break;
        case CHIP_RV710:
                rdev->config.rv770.max_pipes = 2;
                rdev->config.rv770.max_tile_pipes = 2;
                rdev->config.rv770.max_simds = 2;
                rdev->config.rv770.max_backends = 1;
                rdev->config.rv770.max_gprs = 256;
                rdev->config.rv770.max_threads = 192;
                rdev->config.rv770.max_stack_entries = 256;
                rdev->config.rv770.max_hw_contexts = 4;
                rdev->config.rv770.max_gs_threads = 8 * 2;
                rdev->config.rv770.sx_max_export_size = 128;
                rdev->config.rv770.sx_max_export_pos_size = 16;
                rdev->config.rv770.sx_max_export_smx_size = 112;
                rdev->config.rv770.sq_num_cf_insts = 1;

                rdev->config.rv770.sx_num_of_sets = 7;
                rdev->config.rv770.sc_prim_fifo_size = 0x40;
                rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
                break;
        case CHIP_RV740:
                rdev->config.rv770.max_pipes = 4;
                rdev->config.rv770.max_tile_pipes = 4;
                rdev->config.rv770.max_simds = 8;
                rdev->config.rv770.max_backends = 4;
                rdev->config.rv770.max_gprs = 256;
                rdev->config.rv770.max_threads = 248;
                rdev->config.rv770.max_stack_entries = 512;
                rdev->config.rv770.max_hw_contexts = 8;
                rdev->config.rv770.max_gs_threads = 16 * 2;
                rdev->config.rv770.sx_max_export_size = 256;
                rdev->config.rv770.sx_max_export_pos_size = 32;
                rdev->config.rv770.sx_max_export_smx_size = 224;
                rdev->config.rv770.sq_num_cf_insts = 2;

                rdev->config.rv770.sx_num_of_sets = 7;
                rdev->config.rv770.sc_prim_fifo_size = 0x100;
                rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
                rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;

                if (rdev->config.rv770.sx_max_export_pos_size > 16) {
                        rdev->config.rv770.sx_max_export_pos_size -= 16;
                        rdev->config.rv770.sx_max_export_smx_size += 16;
                }
                break;
        default:
                break;
        }

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

        WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));

        /* setup tiling, simd, pipe config */
        mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);

        shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG);
        inactive_pipes = (shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> INACTIVE_QD_PIPES_SHIFT;
        for (i = 0, tmp = 1, active_number = 0; i < R7XX_MAX_PIPES; i++) {
                if (!(inactive_pipes & tmp)) {
                        active_number++;
                }
                tmp <<= 1;
        }
        if (active_number == 1) {
                WREG32(SPI_CONFIG_CNTL, DISABLE_INTERP_1);
        } else {
                WREG32(SPI_CONFIG_CNTL, 0);
        }

        cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & 0xffffff00;
        tmp = rdev->config.rv770.max_simds -
                r600_count_pipe_bits((cc_gc_shader_pipe_config >> 16) & R7XX_MAX_SIMDS_MASK);
        rdev->config.rv770.active_simds = tmp;

        switch (rdev->config.rv770.max_tile_pipes) {
        case 1:
        default:
                gb_tiling_config = PIPE_TILING(0);
                break;
        case 2:
                gb_tiling_config = PIPE_TILING(1);
                break;
        case 4:
                gb_tiling_config = PIPE_TILING(2);
                break;
        case 8:
                gb_tiling_config = PIPE_TILING(3);
                break;
        }
        rdev->config.rv770.tiling_npipes = rdev->config.rv770.max_tile_pipes;

        disabled_rb_mask = (RREG32(CC_RB_BACKEND_DISABLE) >> 16) & R7XX_MAX_BACKENDS_MASK;
        tmp = 0;
        for (i = 0; i < rdev->config.rv770.max_backends; i++)
                tmp |= (1 << i);
        /* if all the backends are disabled, fix it up here */
        if ((disabled_rb_mask & tmp) == tmp) {
                for (i = 0; i < rdev->config.rv770.max_backends; i++)
                        disabled_rb_mask &= ~(1 << i);
        }
        tmp = (gb_tiling_config & PIPE_TILING__MASK) >> PIPE_TILING__SHIFT;
        tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.rv770.max_backends,
                                        R7XX_MAX_BACKENDS, disabled_rb_mask);
        gb_tiling_config |= tmp << 16;
        rdev->config.rv770.backend_map = tmp;

        if (rdev->family == CHIP_RV770)
                gb_tiling_config |= BANK_TILING(1);
        else {
                if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
                        gb_tiling_config |= BANK_TILING(1);
                else
                        gb_tiling_config |= BANK_TILING(0);
        }
        rdev->config.rv770.tiling_nbanks = 4 << ((gb_tiling_config >> 4) & 0x3);
        gb_tiling_config |= GROUP_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
        if (((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT) > 3) {
                gb_tiling_config |= ROW_TILING(3);
                gb_tiling_config |= SAMPLE_SPLIT(3);
        } else {
                gb_tiling_config |=
                        ROW_TILING(((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT));
                gb_tiling_config |=
                        SAMPLE_SPLIT(((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT));
        }

        gb_tiling_config |= BANK_SWAPS(1);
        rdev->config.rv770.tile_config = gb_tiling_config;

        WREG32(GB_TILING_CONFIG, gb_tiling_config);
        WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff));
        WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff));
        WREG32(DMA_TILING_CONFIG, (gb_tiling_config & 0xffff));
        WREG32(DMA_TILING_CONFIG2, (gb_tiling_config & 0xffff));
        if (rdev->family == CHIP_RV730) {
                WREG32(UVD_UDEC_DB_TILING_CONFIG, (gb_tiling_config & 0xffff));
                WREG32(UVD_UDEC_DBW_TILING_CONFIG, (gb_tiling_config & 0xffff));
                WREG32(UVD_UDEC_TILING_CONFIG, (gb_tiling_config & 0xffff));
        }

        WREG32(CGTS_SYS_TCC_DISABLE, 0);
        WREG32(CGTS_TCC_DISABLE, 0);
        WREG32(CGTS_USER_SYS_TCC_DISABLE, 0);
        WREG32(CGTS_USER_TCC_DISABLE, 0);


        num_qd_pipes = R7XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> 8);
        WREG32(VGT_OUT_DEALLOC_CNTL, (num_qd_pipes * 4) & DEALLOC_DIST_MASK);
        WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((num_qd_pipes * 4) - 2) & VTX_REUSE_DEPTH_MASK);

        /* set HW defaults for 3D engine */
        WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
                                     ROQ_IB2_START(0x2b)));

        WREG32(CP_MEQ_THRESHOLDS, STQ_SPLIT(0x30));

        ta_aux_cntl = RREG32(TA_CNTL_AUX);
        WREG32(TA_CNTL_AUX, ta_aux_cntl | DISABLE_CUBE_ANISO);

        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 &= ~CACHE_DEPTH(0x1ff);
        smx_dc_ctl0 |= CACHE_DEPTH((rdev->config.rv770.sx_num_of_sets * 64) - 1);
        WREG32(SMX_DC_CTL0, smx_dc_ctl0);

        if (rdev->family != CHIP_RV740)
                WREG32(SMX_EVENT_CTL, (ES_FLUSH_CTL(4) |
                                       GS_FLUSH_CTL(4) |
                                       ACK_FLUSH_CTL(3) |
                                       SYNC_FLUSH_CTL));

        if (rdev->family != CHIP_RV770)
                WREG32(SMX_SAR_CTL0, 0x00003f3f);

        db_debug3 = RREG32(DB_DEBUG3);
        db_debug3 &= ~DB_CLK_OFF_DELAY(0x1f);
        switch (rdev->family) {
        case CHIP_RV770:
        case CHIP_RV740:
                db_debug3 |= DB_CLK_OFF_DELAY(0x1f);
                break;
        case CHIP_RV710:
        case CHIP_RV730:
        default:
                db_debug3 |= DB_CLK_OFF_DELAY(2);
                break;
        }
        WREG32(DB_DEBUG3, db_debug3);

        if (rdev->family != CHIP_RV770) {
                db_debug4 = RREG32(DB_DEBUG4);
                db_debug4 |= DISABLE_TILE_COVERED_FOR_PS_ITER;
                WREG32(DB_DEBUG4, db_debug4);
        }

        WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.rv770.sx_max_export_size / 4) - 1) |
                                        POSITION_BUFFER_SIZE((rdev->config.rv770.sx_max_export_pos_size / 4) - 1) |
                                        SMX_BUFFER_SIZE((rdev->config.rv770.sx_max_export_smx_size / 4) - 1)));

        WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.rv770.sc_prim_fifo_size) |
                                 SC_HIZ_TILE_FIFO_SIZE(rdev->config.rv770.sc_hiz_tile_fifo_size) |
                                 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.rv770.sc_earlyz_tile_fifo_fize)));

        WREG32(PA_SC_MULTI_CHIP_CNTL, 0);

        WREG32(VGT_NUM_INSTANCES, 1);

        WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));

        WREG32(CP_PERFMON_CNTL, 0);

        sq_ms_fifo_sizes = (CACHE_FIFO_SIZE(16 * rdev->config.rv770.sq_num_cf_insts) |
                            DONE_FIFO_HIWATER(0xe0) |
                            ALU_UPDATE_FIFO_HIWATER(0x8));
        switch (rdev->family) {
        case CHIP_RV770:
        case CHIP_RV730:
        case CHIP_RV710:
                sq_ms_fifo_sizes |= FETCH_FIFO_HIWATER(0x1);
                break;
        case CHIP_RV740:
        default:
                sq_ms_fifo_sizes |= FETCH_FIFO_HIWATER(0x4);
                break;
        }
        WREG32(SQ_MS_FIFO_SIZES, sq_ms_fifo_sizes);

        /* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
         * should be adjusted as needed by the 2D/3D drivers.  This just sets default values
         */
        sq_config = RREG32(SQ_CONFIG);
        sq_config &= ~(PS_PRIO(3) |
                       VS_PRIO(3) |
                       GS_PRIO(3) |
                       ES_PRIO(3));
        sq_config |= (DX9_CONSTS |
                      VC_ENABLE |
                      EXPORT_SRC_C |
                      PS_PRIO(0) |
                      VS_PRIO(1) |
                      GS_PRIO(2) |
                      ES_PRIO(3));
        if (rdev->family == CHIP_RV710)
                /* no vertex cache */
                sq_config &= ~VC_ENABLE;

        WREG32(SQ_CONFIG, sq_config);

        WREG32(SQ_GPR_RESOURCE_MGMT_1,  (NUM_PS_GPRS((rdev->config.rv770.max_gprs * 24)/64) |
                                         NUM_VS_GPRS((rdev->config.rv770.max_gprs * 24)/64) |
                                         NUM_CLAUSE_TEMP_GPRS(((rdev->config.rv770.max_gprs * 24)/64)/2)));

        WREG32(SQ_GPR_RESOURCE_MGMT_2,  (NUM_GS_GPRS((rdev->config.rv770.max_gprs * 7)/64) |
                                         NUM_ES_GPRS((rdev->config.rv770.max_gprs * 7)/64)));

        sq_thread_resource_mgmt = (NUM_PS_THREADS((rdev->config.rv770.max_threads * 4)/8) |
                                   NUM_VS_THREADS((rdev->config.rv770.max_threads * 2)/8) |
                                   NUM_ES_THREADS((rdev->config.rv770.max_threads * 1)/8));
        if (((rdev->config.rv770.max_threads * 1) / 8) > rdev->config.rv770.max_gs_threads)
                sq_thread_resource_mgmt |= NUM_GS_THREADS(rdev->config.rv770.max_gs_threads);
        else
                sq_thread_resource_mgmt |= NUM_GS_THREADS((rdev->config.rv770.max_gs_threads * 1)/8);
        WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);

        WREG32(SQ_STACK_RESOURCE_MGMT_1, (NUM_PS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4) |
                                                     NUM_VS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4)));

        WREG32(SQ_STACK_RESOURCE_MGMT_2, (NUM_GS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4) |
                                                     NUM_ES_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4)));

        sq_dyn_gpr_size_simd_ab_0 = (SIMDA_RING0((rdev->config.rv770.max_gprs * 38)/64) |
                                     SIMDA_RING1((rdev->config.rv770.max_gprs * 38)/64) |
                                     SIMDB_RING0((rdev->config.rv770.max_gprs * 38)/64) |
                                     SIMDB_RING1((rdev->config.rv770.max_gprs * 38)/64));

        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_0, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_1, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_2, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_3, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_4, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_5, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_6, sq_dyn_gpr_size_simd_ab_0);
        WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_7, sq_dyn_gpr_size_simd_ab_0);

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

        if (rdev->family == CHIP_RV710)
                WREG32(VGT_CACHE_INVALIDATION, (CACHE_INVALIDATION(TC_ONLY) |
                                                AUTO_INVLD_EN(ES_AND_GS_AUTO)));
        else
                WREG32(VGT_CACHE_INVALIDATION, (CACHE_INVALIDATION(VC_AND_TC) |
                                                AUTO_INVLD_EN(ES_AND_GS_AUTO)));

        switch (rdev->family) {
        case CHIP_RV770:
        case CHIP_RV730:
        case CHIP_RV740:
                gs_prim_buffer_depth = 384;
                break;
        case CHIP_RV710:
                gs_prim_buffer_depth = 128;
                break;
        default:
                break;
        }

        num_gs_verts_per_thread = rdev->config.rv770.max_pipes * 16;
        vgt_gs_per_es = gs_prim_buffer_depth + num_gs_verts_per_thread;
        /* Max value for this is 256 */
        if (vgt_gs_per_es > 256)
                vgt_gs_per_es = 256;

        WREG32(VGT_ES_PER_GS, 128);
        WREG32(VGT_GS_PER_ES, vgt_gs_per_es);
        WREG32(VGT_GS_PER_VS, 2);

        /* more default values. 2D/3D driver should adjust as needed */
        WREG32(VGT_GS_VERTEX_REUSE, 16);
        WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
        WREG32(VGT_STRMOUT_EN, 0);
        WREG32(SX_MISC, 0);
        WREG32(PA_SC_MODE_CNTL, 0);
        WREG32(PA_SC_EDGERULE, 0xaaaaaaaa);
        WREG32(PA_SC_AA_CONFIG, 0);
        WREG32(PA_SC_CLIPRECT_RULE, 0xffff);
        WREG32(PA_SC_LINE_STIPPLE, 0);
        WREG32(SPI_INPUT_Z, 0);
        WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
        WREG32(CB_COLOR7_FRAG, 0);

        /* clear render buffer base addresses */
        WREG32(CB_COLOR0_BASE, 0);
        WREG32(CB_COLOR1_BASE, 0);
        WREG32(CB_COLOR2_BASE, 0);
        WREG32(CB_COLOR3_BASE, 0);
        WREG32(CB_COLOR4_BASE, 0);
        WREG32(CB_COLOR5_BASE, 0);
        WREG32(CB_COLOR6_BASE, 0);
        WREG32(CB_COLOR7_BASE, 0);

        WREG32(TCP_CNTL, 0);

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

        WREG32(PA_SC_MULTI_CHIP_CNTL, 0);

        WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
                                          NUM_CLIP_SEQ(3)));
        WREG32(VC_ENHANCE, 0);
}

void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
{
        u64 size_bf, size_af;

        if (mc->mc_vram_size > 0xE0000000) {
                /* leave room for at least 512M GTT */
                dev_warn(rdev->dev, "limiting VRAM\n");
                mc->real_vram_size = 0xE0000000;
                mc->mc_vram_size = 0xE0000000;
        }
        if (rdev->flags & RADEON_IS_AGP) {
                size_bf = mc->gtt_start;
                size_af = mc->mc_mask - mc->gtt_end;
                if (size_bf > size_af) {
                        if (mc->mc_vram_size > size_bf) {
                                dev_warn(rdev->dev, "limiting VRAM\n");
                                mc->real_vram_size = size_bf;
                                mc->mc_vram_size = size_bf;
                        }
                        mc->vram_start = mc->gtt_start - mc->mc_vram_size;
                } else {
                        if (mc->mc_vram_size > size_af) {
                                dev_warn(rdev->dev, "limiting VRAM\n");
                                mc->real_vram_size = size_af;
                                mc->mc_vram_size = size_af;
                        }
                        mc->vram_start = mc->gtt_end + 1;
                }
                mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
                dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",
                                mc->mc_vram_size >> 20, mc->vram_start,
                                mc->vram_end, mc->real_vram_size >> 20);
        } else {
                radeon_vram_location(rdev, &rdev->mc, 0);
                rdev->mc.gtt_base_align = 0;
                radeon_gtt_location(rdev, mc);
        }
}

static int rv770_mc_init(struct radeon_device *rdev)
{
        u32 tmp;
        int chansize, numchan;

        /* Get VRAM informations */
        rdev->mc.vram_is_ddr = true;
        tmp = RREG32(MC_ARB_RAMCFG);
        if (tmp & CHANSIZE_OVERRIDE) {
                chansize = 16;
        } else if (tmp & CHANSIZE_MASK) {
                chansize = 64;
        } else {
                chansize = 32;
        }
        tmp = RREG32(MC_SHARED_CHMAP);
        switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
        case 0:
        default:
                numchan = 1;
                break;
        case 1:
                numchan = 2;
                break;
        case 2:
                numchan = 4;
                break;
        case 3:
                numchan = 8;
                break;
        }
        rdev->mc.vram_width = numchan * chansize;
        /* Could aper size report 0 ? */
        rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
        rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
        /* Setup GPU memory space */
        rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
        rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
        rdev->mc.visible_vram_size = rdev->mc.aper_size;
        r700_vram_gtt_location(rdev, &rdev->mc);
        radeon_update_bandwidth_info(rdev);

        return 0;
}

static int rv770_startup(struct radeon_device *rdev)
{
        struct radeon_ring *ring;
        int r;

        /* enable pcie gen2 link */
        rv770_pcie_gen2_enable(rdev);

        /* scratch needs to be initialized before MC */
        r = r600_vram_scratch_init(rdev);
        if (r)
                return r;

        rv770_mc_program(rdev);

        if (rdev->flags & RADEON_IS_AGP) {
                rv770_agp_enable(rdev);
        } else {
                r = rv770_pcie_gart_enable(rdev);
                if (r)
                        return r;
        }

        rv770_gpu_init(rdev);

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

        r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
                return r;
        }

        r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
        if (r) {
                dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
                return r;
        }

        r = uvd_v2_2_resume(rdev);
        if (!r) {
                r = radeon_fence_driver_start_ring(rdev,
                                                   R600_RING_TYPE_UVD_INDEX);
                if (r)
                        dev_err(rdev->dev, "UVD fences init error (%d).\n", r);
        }

        if (r)
                rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;

        /* Enable IRQ */
        if (!rdev->irq.installed) {
                r = radeon_irq_kms_init(rdev);
                if (r)
                        return r;
        }

        r = r600_irq_init(rdev);
        if (r) {
                DRM_ERROR("radeon: IH init failed (%d).\n", r);
                radeon_irq_kms_fini(rdev);
                return r;
        }
        r600_irq_set(rdev);

        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
                             RADEON_CP_PACKET2);
        if (r)
                return r;

        ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
                             DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
        if (r)
                return r;

        r = rv770_cp_load_microcode(rdev);
        if (r)
                return r;
        r = r600_cp_resume(rdev);
        if (r)
                return r;

        r = r600_dma_resume(rdev);
        if (r)
                return r;

        ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
        if (ring->ring_size) {
                r = radeon_ring_init(rdev, ring, ring->ring_size, 0,
                                     RADEON_CP_PACKET2);
                if (!r)
                        r = uvd_v1_0_init(rdev);

                if (r)
                        DRM_ERROR("radeon: failed initializing UVD (%d).\n", r);
        }

        r = radeon_ib_pool_init(rdev);
        if (r) {
                dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
                return r;
        }

        r = radeon_audio_init(rdev);
        if (r) {
                DRM_ERROR("radeon: audio init failed\n");
                return r;
        }

        return 0;
}

int rv770_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);

        /* init golden registers */
        rv770_init_golden_registers(rdev);

        if (rdev->pm.pm_method == PM_METHOD_DPM)
                radeon_pm_resume(rdev);

        rdev->accel_working = true;
        r = rv770_startup(rdev);
        if (r) {
                DRM_ERROR("r600 startup failed on resume\n");
                rdev->accel_working = false;
                return r;
        }

        return r;

}

int rv770_suspend(struct radeon_device *rdev)
{
        radeon_pm_suspend(rdev);
        radeon_audio_fini(rdev);
        uvd_v1_0_fini(rdev);
        radeon_uvd_suspend(rdev);
        r700_cp_stop(rdev);
        r600_dma_stop(rdev);
        r600_irq_suspend(rdev);
        radeon_wb_disable(rdev);
        rv770_pcie_gart_disable(rdev);

        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 rv770_init(struct radeon_device *rdev)
{
        int 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 R600 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);
        }
        /* init golden registers */
        rv770_init_golden_registers(rdev);
        /* 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 AGP */
        if (rdev->flags & RADEON_IS_AGP) {
                r = radeon_agp_init(rdev);
                if (r)
                        radeon_agp_disable(rdev);
        }
        r = rv770_mc_init(rdev);
        if (r)
                return r;
        /* Memory manager */
        r = radeon_bo_init(rdev);
        if (r)
                return r;

        if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
                r = r600_init_microcode(rdev);
                if (r) {
                        DRM_ERROR("Failed to load firmware!\n");
                        return r;
                }
        }

        /* Initialize power management */
        radeon_pm_init(rdev);

        rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
        r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);

        rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
        r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);

        r = radeon_uvd_init(rdev);
        if (!r) {
                rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
                r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX],
                               4096);
        }

        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 = rv770_startup(rdev);
        if (r) {
                dev_err(rdev->dev, "disabling GPU acceleration\n");
                r700_cp_fini(rdev);
                r600_dma_fini(rdev);
                r600_irq_fini(rdev);
                radeon_wb_fini(rdev);
                radeon_ib_pool_fini(rdev);
                radeon_irq_kms_fini(rdev);
                rv770_pcie_gart_fini(rdev);
                rdev->accel_working = false;
        }

        return 0;
}

void rv770_fini(struct radeon_device *rdev)
{
        radeon_pm_fini(rdev);
        r700_cp_fini(rdev);
        r600_dma_fini(rdev);
        r600_irq_fini(rdev);
        radeon_wb_fini(rdev);
        radeon_ib_pool_fini(rdev);
        radeon_irq_kms_fini(rdev);
        uvd_v1_0_fini(rdev);
        radeon_uvd_fini(rdev);
        rv770_pcie_gart_fini(rdev);
        r600_vram_scratch_fini(rdev);
        radeon_gem_fini(rdev);
        radeon_fence_driver_fini(rdev);
        radeon_agp_fini(rdev);
        radeon_bo_fini(rdev);
        radeon_atombios_fini(rdev);
        kfree(rdev->bios);
        rdev->bios = NULL;
}

static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
{
        u32 link_width_cntl, lanes, speed_cntl, tmp;
        u16 link_cntl2;

        if (radeon_pcie_gen2 == 0)
                return;

        if (rdev->flags & RADEON_IS_IGP)
                return;

        if (!(rdev->flags & RADEON_IS_PCIE))
                return;

        /* x2 cards have a special sequence */
        if (ASIC_IS_X2(rdev))
                return;

        if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
                (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
                return;

        DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");

        /* advertise upconfig capability */
        link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
        link_width_cntl &= ~LC_UPCONFIGURE_DIS;
        WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);

        link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
        if (link_width_cntl & LC_RENEGOTIATION_SUPPORT) {
                lanes = (link_width_cntl & LC_LINK_WIDTH_RD_MASK) >> LC_LINK_WIDTH_RD_SHIFT;
                link_width_cntl &= ~(LC_LINK_WIDTH_MASK |
                                     LC_RECONFIG_ARC_MISSING_ESCAPE);
                link_width_cntl |= lanes | LC_RECONFIG_NOW |
                        LC_RENEGOTIATE_EN | LC_UPCONFIGURE_SUPPORT;
                WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
        } else {
                link_width_cntl |= LC_UPCONFIGURE_DIS;
                WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
        }

        speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
        if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
            (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {

                tmp = RREG32(0x541c);
                WREG32(0x541c, tmp | 0x8);
                WREG32(MM_CFGREGS_CNTL, MM_WR_TO_CFG_EN);
                link_cntl2 = RREG16(0x4088);
                link_cntl2 &= ~TARGET_LINK_SPEED_MASK;
                link_cntl2 |= 0x2;
                WREG16(0x4088, link_cntl2);
                WREG32(MM_CFGREGS_CNTL, 0);

                speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
                speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
                WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

                speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
                speed_cntl |= LC_CLR_FAILED_SPD_CHANGE_CNT;
                WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

                speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
                speed_cntl &= ~LC_CLR_FAILED_SPD_CHANGE_CNT;
                WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

                speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
                speed_cntl |= LC_GEN2_EN_STRAP;
                WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);

        } else {
                link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
                /* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
                if (1)
                        link_width_cntl |= LC_UPCONFIGURE_DIS;
                else
                        link_width_cntl &= ~LC_UPCONFIGURE_DIS;
                WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
        }
}