1/*
  2 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  3 * All Rights Reserved.
  4 *
  5 * Permission is hereby granted, free of charge, to any person obtaining a
  6 * copy of this software and associated documentation files (the
  7 * "Software"), to deal in the Software without restriction, including
  8 * without limitation the rights to use, copy, modify, merge, publish,
  9 * distribute, sub license, and/or sell copies of the Software, and to
 10 * permit persons to whom the Software is furnished to do so, subject to
 11 * the following conditions:
 12 *
 13 * The above copyright notice and this permission notice (including the
 14 * next paragraph) shall be included in all copies or substantial portions
 15 * of the Software.
 16 *
 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 24 *
 25 */
 26#ifndef _I915_DRM_H_
 27#define _I915_DRM_H_
 28
 29#include <linux/types.h>
 30
 31/* For use by IPS driver */
 32unsigned long i915_read_mch_val(void);
 33bool i915_gpu_raise(void);
 34bool i915_gpu_lower(void);
 35bool i915_gpu_busy(void);
 36bool i915_gpu_turbo_disable(void);
 37
 38/* Exported from arch/x86/kernel/early-quirks.c */
 39extern struct resource intel_graphics_stolen_res;
 40
 41/*
 42 * The Bridge device's PCI config space has information about the
 43 * fb aperture size and the amount of pre-reserved memory.
 44 * This is all handled in the intel-gtt.ko module. i915.ko only
 45 * cares about the vga bit for the vga arbiter.
 46 */
 47#define INTEL_GMCH_CTRL		0x52
 48#define INTEL_GMCH_VGA_DISABLE  (1 << 1)
 49#define SNB_GMCH_CTRL		0x50
 50#define    SNB_GMCH_GGMS_SHIFT	8 /* GTT Graphics Memory Size */
 51#define    SNB_GMCH_GGMS_MASK	0x3
 52#define    SNB_GMCH_GMS_SHIFT   3 /* Graphics Mode Select */
 53#define    SNB_GMCH_GMS_MASK    0x1f
 54#define    BDW_GMCH_GGMS_SHIFT	6
 55#define    BDW_GMCH_GGMS_MASK	0x3
 56#define    BDW_GMCH_GMS_SHIFT   8
 57#define    BDW_GMCH_GMS_MASK    0xff
 58
 59#define I830_GMCH_CTRL			0x52
 60
 61#define I830_GMCH_GMS_MASK		0x70
 62#define I830_GMCH_GMS_LOCAL		0x10
 63#define I830_GMCH_GMS_STOLEN_512	0x20
 64#define I830_GMCH_GMS_STOLEN_1024	0x30
 65#define I830_GMCH_GMS_STOLEN_8192	0x40
 66
 67#define I855_GMCH_GMS_MASK		0xF0
 68#define I855_GMCH_GMS_STOLEN_0M		0x0
 69#define I855_GMCH_GMS_STOLEN_1M		(0x1 << 4)
 70#define I855_GMCH_GMS_STOLEN_4M		(0x2 << 4)
 71#define I855_GMCH_GMS_STOLEN_8M		(0x3 << 4)
 72#define I855_GMCH_GMS_STOLEN_16M	(0x4 << 4)
 73#define I855_GMCH_GMS_STOLEN_32M	(0x5 << 4)
 74#define I915_GMCH_GMS_STOLEN_48M	(0x6 << 4)
 75#define I915_GMCH_GMS_STOLEN_64M	(0x7 << 4)
 76#define G33_GMCH_GMS_STOLEN_128M	(0x8 << 4)
 77#define G33_GMCH_GMS_STOLEN_256M	(0x9 << 4)
 78#define INTEL_GMCH_GMS_STOLEN_96M	(0xa << 4)
 79#define INTEL_GMCH_GMS_STOLEN_160M	(0xb << 4)
 80#define INTEL_GMCH_GMS_STOLEN_224M	(0xc << 4)
 81#define INTEL_GMCH_GMS_STOLEN_352M	(0xd << 4)
 82
 83#define I830_DRB3		0x63
 84#define I85X_DRB3		0x43
 85#define I865_TOUD		0xc4
 86
 87#define I830_ESMRAMC		0x91
 88#define I845_ESMRAMC		0x9e
 89#define I85X_ESMRAMC		0x61
 90#define    TSEG_ENABLE		(1 << 0)
 91#define    I830_TSEG_SIZE_512K	(0 << 1)
 92#define    I830_TSEG_SIZE_1M	(1 << 1)
 93#define    I845_TSEG_SIZE_MASK	(3 << 1)
 94#define    I845_TSEG_SIZE_512K	(2 << 1)
 95#define    I845_TSEG_SIZE_1M	(3 << 1)
 96
 97#define INTEL_BSM		0x5c
 98#define INTEL_GEN11_BSM_DW0	0xc0
 99#define INTEL_GEN11_BSM_DW1	0xc4
100#define   INTEL_BSM_MASK	(-(1u << 20))
101
102#endif				/* _I915_DRM_H_ */