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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/ichwd/@/amd64/compile/hs32/modules/usr/src/sys/modules/usb/ums/@/dev/drm/i915_suspend.c |
/* i915_suspend.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
*/
/*
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/drm/i915_suspend.c 190164 2009-03-20 17:51:26Z rnoland $");
#include "dev/drm/drmP.h"
#include "dev/drm/drm.h"
#include "dev/drm/i915_drm.h"
#include "dev/drm/i915_drv.h"
static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (pipe == PIPE_A)
return (I915_READ(DPLL_A) & DPLL_VCO_ENABLE);
else
return (I915_READ(DPLL_B) & DPLL_VCO_ENABLE);
}
static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
u32 *array;
int i;
if (!i915_pipe_enabled(dev, pipe))
return;
if (pipe == PIPE_A)
array = dev_priv->save_palette_a;
else
array = dev_priv->save_palette_b;
for(i = 0; i < 256; i++)
array[i] = I915_READ(reg + (i << 2));
}
static void i915_restore_palette(struct drm_device *dev, enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
u32 *array;
int i;
if (!i915_pipe_enabled(dev, pipe))
return;
if (pipe == PIPE_A)
array = dev_priv->save_palette_a;
else
array = dev_priv->save_palette_b;
for(i = 0; i < 256; i++)
I915_WRITE(reg + (i << 2), array[i]);
}
static u8 i915_read_indexed(struct drm_device *dev, u16 index_port, u16 data_port, u8 reg)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE8(index_port, reg);
return I915_READ8(data_port);
}
static u8 i915_read_ar(struct drm_device *dev, u16 st01, u8 reg, u16 palette_enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_READ8(st01);
I915_WRITE8(VGA_AR_INDEX, palette_enable | reg);
return I915_READ8(VGA_AR_DATA_READ);
}
static void i915_write_ar(struct drm_device *dev, u16 st01, u8 reg, u8 val, u16 palette_enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_READ8(st01);
I915_WRITE8(VGA_AR_INDEX, palette_enable | reg);
I915_WRITE8(VGA_AR_DATA_WRITE, val);
}
static void i915_write_indexed(struct drm_device *dev, u16 index_port, u16 data_port, u8 reg, u8 val)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE8(index_port, reg);
I915_WRITE8(data_port, val);
}
static void i915_save_vga(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
u16 cr_index, cr_data, st01;
/* VGA color palette registers */
dev_priv->saveDACMASK = I915_READ8(VGA_DACMASK);
/* MSR bits */
dev_priv->saveMSR = I915_READ8(VGA_MSR_READ);
if (dev_priv->saveMSR & VGA_MSR_CGA_MODE) {
cr_index = VGA_CR_INDEX_CGA;
cr_data = VGA_CR_DATA_CGA;
st01 = VGA_ST01_CGA;
} else {
cr_index = VGA_CR_INDEX_MDA;
cr_data = VGA_CR_DATA_MDA;
st01 = VGA_ST01_MDA;
}
/* CRT controller regs */
i915_write_indexed(dev, cr_index, cr_data, 0x11,
i915_read_indexed(dev, cr_index, cr_data, 0x11) &
(~0x80));
for (i = 0; i <= 0x24; i++)
dev_priv->saveCR[i] =
i915_read_indexed(dev, cr_index, cr_data, i);
/* Make sure we don't turn off CR group 0 writes */
dev_priv->saveCR[0x11] &= ~0x80;
/* Attribute controller registers */
I915_READ8(st01);
dev_priv->saveAR_INDEX = I915_READ8(VGA_AR_INDEX);
for (i = 0; i <= 0x14; i++)
dev_priv->saveAR[i] = i915_read_ar(dev, st01, i, 0);
I915_READ8(st01);
I915_WRITE8(VGA_AR_INDEX, dev_priv->saveAR_INDEX);
I915_READ8(st01);
/* Graphics controller registers */
for (i = 0; i < 9; i++)
dev_priv->saveGR[i] =
i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, i);
dev_priv->saveGR[0x10] =
i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x10);
dev_priv->saveGR[0x11] =
i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x11);
dev_priv->saveGR[0x18] =
i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x18);
/* Sequencer registers */
for (i = 0; i < 8; i++)
dev_priv->saveSR[i] =
i915_read_indexed(dev, VGA_SR_INDEX, VGA_SR_DATA, i);
}
static void i915_restore_vga(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
u16 cr_index, cr_data, st01;
/* MSR bits */
I915_WRITE8(VGA_MSR_WRITE, dev_priv->saveMSR);
if (dev_priv->saveMSR & VGA_MSR_CGA_MODE) {
cr_index = VGA_CR_INDEX_CGA;
cr_data = VGA_CR_DATA_CGA;
st01 = VGA_ST01_CGA;
} else {
cr_index = VGA_CR_INDEX_MDA;
cr_data = VGA_CR_DATA_MDA;
st01 = VGA_ST01_MDA;
}
/* Sequencer registers, don't write SR07 */
for (i = 0; i < 7; i++)
i915_write_indexed(dev, VGA_SR_INDEX, VGA_SR_DATA, i,
dev_priv->saveSR[i]);
/* CRT controller regs */
/* Enable CR group 0 writes */
i915_write_indexed(dev, cr_index, cr_data, 0x11, dev_priv->saveCR[0x11]);
for (i = 0; i <= 0x24; i++)
i915_write_indexed(dev, cr_index, cr_data, i, dev_priv->saveCR[i]);
/* Graphics controller regs */
for (i = 0; i < 9; i++)
i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, i,
dev_priv->saveGR[i]);
i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x10,
dev_priv->saveGR[0x10]);
i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x11,
dev_priv->saveGR[0x11]);
i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x18,
dev_priv->saveGR[0x18]);
/* Attribute controller registers */
I915_READ8(st01); /* switch back to index mode */
for (i = 0; i <= 0x14; i++)
i915_write_ar(dev, st01, i, dev_priv->saveAR[i], 0);
I915_READ8(st01); /* switch back to index mode */
I915_WRITE8(VGA_AR_INDEX, dev_priv->saveAR_INDEX | 0x20);
I915_READ8(st01);
/* VGA color palette registers */
I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK);
}
int i915_save_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
#if defined(__FreeBSD__)
dev_priv->saveLBB = (u8) pci_read_config(dev->device, LBB, 1);
#else
pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
#endif
/* Render Standby */
if (IS_I965G(dev) && IS_MOBILE(dev))
dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
/* Hardware status page */
dev_priv->saveHWS = I915_READ(HWS_PGA);
/* Display arbitration control */
dev_priv->saveDSPARB = I915_READ(DSPARB);
/* Pipe & plane A info */
dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
dev_priv->saveFPA0 = I915_READ(FPA0);
dev_priv->saveFPA1 = I915_READ(FPA1);
dev_priv->saveDPLL_A = I915_READ(DPLL_A);
if (IS_I965G(dev))
dev_priv->saveDPLL_A_MD = I915_READ(DPLL_A_MD);
dev_priv->saveHTOTAL_A = I915_READ(HTOTAL_A);
dev_priv->saveHBLANK_A = I915_READ(HBLANK_A);
dev_priv->saveHSYNC_A = I915_READ(HSYNC_A);
dev_priv->saveVTOTAL_A = I915_READ(VTOTAL_A);
dev_priv->saveVBLANK_A = I915_READ(VBLANK_A);
dev_priv->saveVSYNC_A = I915_READ(VSYNC_A);
dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
dev_priv->saveDSPACNTR = I915_READ(DSPACNTR);
dev_priv->saveDSPASTRIDE = I915_READ(DSPASTRIDE);
dev_priv->saveDSPASIZE = I915_READ(DSPASIZE);
dev_priv->saveDSPAPOS = I915_READ(DSPAPOS);
dev_priv->saveDSPAADDR = I915_READ(DSPAADDR);
if (IS_I965G(dev)) {
dev_priv->saveDSPASURF = I915_READ(DSPASURF);
dev_priv->saveDSPATILEOFF = I915_READ(DSPATILEOFF);
}
i915_save_palette(dev, PIPE_A);
dev_priv->savePIPEASTAT = I915_READ(PIPEASTAT);
/* Pipe & plane B info */
dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF);
dev_priv->savePIPEBSRC = I915_READ(PIPEBSRC);
dev_priv->saveFPB0 = I915_READ(FPB0);
dev_priv->saveFPB1 = I915_READ(FPB1);
dev_priv->saveDPLL_B = I915_READ(DPLL_B);
if (IS_I965G(dev))
dev_priv->saveDPLL_B_MD = I915_READ(DPLL_B_MD);
dev_priv->saveHTOTAL_B = I915_READ(HTOTAL_B);
dev_priv->saveHBLANK_B = I915_READ(HBLANK_B);
dev_priv->saveHSYNC_B = I915_READ(HSYNC_B);
dev_priv->saveVTOTAL_B = I915_READ(VTOTAL_B);
dev_priv->saveVBLANK_B = I915_READ(VBLANK_B);
dev_priv->saveVSYNC_B = I915_READ(VSYNC_B);
dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
dev_priv->saveDSPBCNTR = I915_READ(DSPBCNTR);
dev_priv->saveDSPBSTRIDE = I915_READ(DSPBSTRIDE);
dev_priv->saveDSPBSIZE = I915_READ(DSPBSIZE);
dev_priv->saveDSPBPOS = I915_READ(DSPBPOS);
dev_priv->saveDSPBADDR = I915_READ(DSPBADDR);
if (IS_I965GM(dev) || IS_GM45(dev)) {
dev_priv->saveDSPBSURF = I915_READ(DSPBSURF);
dev_priv->saveDSPBTILEOFF = I915_READ(DSPBTILEOFF);
}
i915_save_palette(dev, PIPE_B);
dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT);
/* CRT state */
dev_priv->saveADPA = I915_READ(ADPA);
/* LVDS state */
dev_priv->savePP_CONTROL = I915_READ(PP_CONTROL);
dev_priv->savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
if (IS_I965G(dev))
dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
if (IS_MOBILE(dev) && !IS_I830(dev))
dev_priv->saveLVDS = I915_READ(LVDS);
if (!IS_I830(dev) && !IS_845G(dev))
dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
dev_priv->savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS);
dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS);
dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR);
/* FIXME: save TV & SDVO state */
/* FBC state */
dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE);
dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2);
dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL);
/* Interrupt state */
dev_priv->saveIIR = I915_READ(IIR);
dev_priv->saveIER = I915_READ(IER);
dev_priv->saveIMR = I915_READ(IMR);
/* VGA state */
dev_priv->saveVGA0 = I915_READ(VGA0);
dev_priv->saveVGA1 = I915_READ(VGA1);
dev_priv->saveVGA_PD = I915_READ(VGA_PD);
dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
/* Clock gating state */
dev_priv->saveD_STATE = I915_READ(D_STATE);
dev_priv->saveCG_2D_DIS = I915_READ(CG_2D_DIS);
/* Cache mode state */
dev_priv->saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);
/* Memory Arbitration state */
dev_priv->saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);
/* Scratch space */
for (i = 0; i < 16; i++) {
dev_priv->saveSWF0[i] = I915_READ(SWF00 + (i << 2));
dev_priv->saveSWF1[i] = I915_READ(SWF10 + (i << 2));
}
for (i = 0; i < 3; i++)
dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
i915_save_vga(dev);
return 0;
}
int i915_restore_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
#if defined(__FreeBSD__)
pci_write_config(dev->device, LBB, dev_priv->saveLBB, 1);
#else
pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
#endif
/* Render Standby */
if (IS_I965G(dev) && IS_MOBILE(dev))
I915_WRITE(MCHBAR_RENDER_STANDBY, dev_priv->saveRENDERSTANDBY);
/* Hardware status page */
I915_WRITE(HWS_PGA, dev_priv->saveHWS);
/* Display arbitration */
I915_WRITE(DSPARB, dev_priv->saveDSPARB);
/* Pipe & plane A info */
/* Prime the clock */
if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
~DPLL_VCO_ENABLE);
DRM_UDELAY(150);
}
I915_WRITE(FPA0, dev_priv->saveFPA0);
I915_WRITE(FPA1, dev_priv->saveFPA1);
/* Actually enable it */
I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
DRM_UDELAY(150);
if (IS_I965G(dev))
I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
DRM_UDELAY(150);
/* Restore mode */
I915_WRITE(HTOTAL_A, dev_priv->saveHTOTAL_A);
I915_WRITE(HBLANK_A, dev_priv->saveHBLANK_A);
I915_WRITE(HSYNC_A, dev_priv->saveHSYNC_A);
I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
/* Restore plane info */
I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS);
I915_WRITE(PIPEASRC, dev_priv->savePIPEASRC);
I915_WRITE(DSPAADDR, dev_priv->saveDSPAADDR);
I915_WRITE(DSPASTRIDE, dev_priv->saveDSPASTRIDE);
if (IS_I965G(dev)) {
I915_WRITE(DSPASURF, dev_priv->saveDSPASURF);
I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF);
}
I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
i915_restore_palette(dev, PIPE_A);
/* Enable the plane */
I915_WRITE(DSPACNTR, dev_priv->saveDSPACNTR);
I915_WRITE(DSPAADDR, I915_READ(DSPAADDR));
/* Pipe & plane B info */
if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
~DPLL_VCO_ENABLE);
DRM_UDELAY(150);
}
I915_WRITE(FPB0, dev_priv->saveFPB0);
I915_WRITE(FPB1, dev_priv->saveFPB1);
/* Actually enable it */
I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
DRM_UDELAY(150);
if (IS_I965G(dev))
I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
DRM_UDELAY(150);
/* Restore mode */
I915_WRITE(HTOTAL_B, dev_priv->saveHTOTAL_B);
I915_WRITE(HBLANK_B, dev_priv->saveHBLANK_B);
I915_WRITE(HSYNC_B, dev_priv->saveHSYNC_B);
I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
/* Restore plane info */
I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS);
I915_WRITE(PIPEBSRC, dev_priv->savePIPEBSRC);
I915_WRITE(DSPBADDR, dev_priv->saveDSPBADDR);
I915_WRITE(DSPBSTRIDE, dev_priv->saveDSPBSTRIDE);
if (IS_I965G(dev)) {
I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF);
I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF);
}
I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
i915_restore_palette(dev, PIPE_B);
/* Enable the plane */
I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
I915_WRITE(DSPBADDR, I915_READ(DSPBADDR));
/* CRT state */
I915_WRITE(ADPA, dev_priv->saveADPA);
/* LVDS state */
if (IS_I965G(dev))
I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2);
if (IS_MOBILE(dev) && !IS_I830(dev))
I915_WRITE(LVDS, dev_priv->saveLVDS);
if (!IS_I830(dev) && !IS_845G(dev))
I915_WRITE(PFIT_CONTROL, dev_priv->savePFIT_CONTROL);
I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS);
I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL);
I915_WRITE(PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
I915_WRITE(PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR);
I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL);
/* FIXME: restore TV & SDVO state */
/* FBC info */
I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE);
I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE);
I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2);
I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL);
/* VGA state */
I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL);
I915_WRITE(VGA0, dev_priv->saveVGA0);
I915_WRITE(VGA1, dev_priv->saveVGA1);
I915_WRITE(VGA_PD, dev_priv->saveVGA_PD);
DRM_UDELAY(150);
/* Clock gating state */
I915_WRITE (D_STATE, dev_priv->saveD_STATE);
I915_WRITE (CG_2D_DIS, dev_priv->saveCG_2D_DIS);
/* Cache mode state */
I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
/* Memory arbitration state */
I915_WRITE (MI_ARB_STATE, dev_priv->saveMI_ARB_STATE | 0xffff0000);
for (i = 0; i < 16; i++) {
I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]);
I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]);
}
for (i = 0; i < 3; i++)
I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]);
i915_restore_vga(dev);
return 0;
}