diff options
Diffstat (limited to 'sys/dev/pci/drm/i915_drv.c')
| -rw-r--r-- | sys/dev/pci/drm/i915_drv.c | 709 |
1 files changed, 708 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/i915_drv.c b/sys/dev/pci/drm/i915_drv.c index e43ee8d5380..7e8ab1d0636 100644 --- a/sys/dev/pci/drm/i915_drv.c +++ b/sys/dev/pci/drm/i915_drv.c @@ -39,6 +39,27 @@ int inteldrm_probe(struct device *, void *, void *); void inteldrm_attach(struct device *, struct device *, void *); int inteldrm_detach(struct device *, int); int inteldrm_ioctl(struct drm_device *, u_long, caddr_t, struct drm_file *); +int inteldrm_activate(struct device *, int); + +/* For reset and suspend */ +int inteldrm_save_state(struct drm_i915_private *); +int inteldrm_restore_state(struct drm_i915_private *); +int inteldrm_save_display(struct drm_i915_private *); +int inteldrm_restore_display(struct drm_i915_private *); +void i915_save_vga(struct drm_i915_private *); +void i915_restore_vga(struct drm_i915_private *); +void i915_save_modeset_reg(struct drm_i915_private *); +void i915_restore_modeset_reg(struct drm_i915_private *); +u_int8_t i915_read_indexed(struct drm_i915_private *, u_int16_t, + u_int16_t, u_int8_t); +void i915_write_indexed(struct drm_i915_private *, u_int16_t, + u_int16_t, u_int8_t, u_int8_t); +void i915_write_ar(struct drm_i915_private *, u_int16_t, u_int8_t, + u_int8_t, u_int16_t); +u_int8_t i915_read_ar(struct drm_i915_private *, u_int16_t, + u_int8_t, u_int16_t); +void i915_save_palette(struct drm_i915_private *, enum pipe); +void i915_restore_palette(struct drm_i915_private *, enum pipe); const static struct drm_pcidev inteldrm_pciidlist[] = { {PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82830M_IGD, @@ -133,6 +154,7 @@ inteldrm_attach(struct device *parent, struct device *self, void *aux) dev_priv->pci_device = PCI_PRODUCT(pa->pa_id); dev_priv->pc = pa->pa_pc; + dev_priv->tag = pa->pa_tag; dev_priv->dmat = pa->pa_dmat; dev_priv->bst = pa->pa_memt; @@ -190,9 +212,26 @@ inteldrm_detach(struct device *self, int flags) return (0); } +int +inteldrm_activate(struct device *arg, int act) +{ + struct drm_i915_private *dev_priv = (struct drm_i915_private *)arg; + + switch (act) { + case DVACT_SUSPEND: + inteldrm_save_state(dev_priv); + break; + case DVACT_RESUME: + inteldrm_restore_state(dev_priv); + break; + } + + return (0); +} + struct cfattach inteldrm_ca = { sizeof(struct drm_i915_private), inteldrm_probe, inteldrm_attach, - inteldrm_detach + inteldrm_detach, inteldrm_activate }; struct cfdriver inteldrm_cd = { @@ -348,3 +387,671 @@ inteldrm_update_ring(struct drm_i915_private *dev_priv) ring->head, ring->tail, ring->space); } +/** + * inteldrm_pipe_enabled - check if a pipe is enabled + * @dev: DRM device + * @pipe: pipe to check + * + * Reading certain registers when the pipe is disabled can hang the chip. + * Use this routine to make sure the PLL is running and the pipe is active + * before reading such registers if unsure. + */ +int +inteldrm_pipe_enabled(struct drm_i915_private *dev_priv, int pipe) +{ + bus_size_t pipeconf = pipe ? PIPEBCONF : PIPEACONF; + + return ((I915_READ(pipeconf) & PIPEACONF_ENABLE) == PIPEACONF_ENABLE); +} + +/* + * Register save/restore for various instances + */ +void +i915_save_palette(struct drm_i915_private *dev_priv, enum pipe pipe) +{ + u_int32_t *array; + bus_size_t reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B); + int i; + + if (!inteldrm_pipe_enabled(dev_priv, 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)); +} + +void +i915_restore_palette(struct drm_i915_private *dev_priv, enum pipe pipe) +{ + u_int32_t *array; + bus_size_t reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B); + int i; + + if (!inteldrm_pipe_enabled(dev_priv, 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]); +} + +u_int8_t +i915_read_ar(struct drm_i915_private *dev_priv, u_int16_t st01, + u_int8_t reg, u_int16_t palette_enable) +{ + I915_READ8(st01); + I915_WRITE8(VGA_AR_INDEX, palette_enable | reg); + return I915_READ8(VGA_AR_DATA_READ); +} + +void +i915_write_ar(struct drm_i915_private *dev_priv, u_int16_t st01, u_int8_t reg, + u_int8_t val, u_int16_t palette_enable) +{ + I915_READ8(st01); + I915_WRITE8(VGA_AR_INDEX, palette_enable | reg); + I915_WRITE8(VGA_AR_DATA_WRITE, val); +} + +u_int8_t +i915_read_indexed(struct drm_i915_private *dev_priv, u_int16_t index_port, + u_int16_t data_port, u_int8_t reg) +{ + I915_WRITE8(index_port, reg); + return I915_READ8(data_port); +} + +void +i915_write_indexed(struct drm_i915_private *dev_priv, u_int16_t index_port, + u_int16_t data_port, u_int8_t reg, u_int8_t val) +{ + I915_WRITE8(index_port, reg); + I915_WRITE8(data_port, val); +} + +void +i915_save_vga(struct drm_i915_private *dev_priv) +{ + 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_priv, cr_index, cr_data, 0x11, + i915_read_indexed(dev_priv, cr_index, cr_data, 0x11) & (~0x80)); + for (i = 0; i <= 0x24; i++) + dev_priv->saveCR[i] = i915_read_indexed(dev_priv, + 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_priv, 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_priv, + VGA_GR_INDEX, VGA_GR_DATA, i); + + dev_priv->saveGR[0x10] = i915_read_indexed(dev_priv, + VGA_GR_INDEX, VGA_GR_DATA, 0x10); + dev_priv->saveGR[0x11] = i915_read_indexed(dev_priv, + VGA_GR_INDEX, VGA_GR_DATA, 0x11); + dev_priv->saveGR[0x18] = i915_read_indexed(dev_priv, + VGA_GR_INDEX, VGA_GR_DATA, 0x18); + + /* Sequencer registers */ + for (i = 0; i < 8; i++) + dev_priv->saveSR[i] = i915_read_indexed(dev_priv, + VGA_SR_INDEX, VGA_SR_DATA, i); +} + +void +i915_restore_vga(struct drm_i915_private *dev_priv) +{ + u_int16_t cr_index, cr_data, st01; + int i; + + /* 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_priv, VGA_SR_INDEX, VGA_SR_DATA, i, + dev_priv->saveSR[i]); + + /* CRT controller regs */ + /* Enable CR group 0 writes */ + i915_write_indexed(dev_priv, cr_index, cr_data, 0x11, + dev_priv->saveCR[0x11]); + for (i = 0; i <= 0x24; i++) + i915_write_indexed(dev_priv, cr_index, cr_data, + i, dev_priv->saveCR[i]); + + /* Graphics controller regs */ + for (i = 0; i < 9; i++) + i915_write_indexed(dev_priv, VGA_GR_INDEX, VGA_GR_DATA, i, + dev_priv->saveGR[i]); + + i915_write_indexed(dev_priv, VGA_GR_INDEX, VGA_GR_DATA, 0x10, + dev_priv->saveGR[0x10]); + i915_write_indexed(dev_priv, VGA_GR_INDEX, VGA_GR_DATA, 0x11, + dev_priv->saveGR[0x11]); + i915_write_indexed(dev_priv, 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_priv, 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); +} + +void +i915_save_modeset_reg(struct drm_i915_private *dev_priv) +{ + /* 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_priv)) + 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_priv)) { + dev_priv->saveDSPASURF = I915_READ(DSPASURF); + dev_priv->saveDSPATILEOFF = I915_READ(DSPATILEOFF); + } + i915_save_palette(dev_priv, 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_priv)) + 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_priv) || IS_GM45(dev_priv)) { + dev_priv->saveDSPBSURF = I915_READ(DSPBSURF); + dev_priv->saveDSPBTILEOFF = I915_READ(DSPBTILEOFF); + } + i915_save_palette(dev_priv, PIPE_B); + dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT); +} + +void +i915_restore_modeset_reg(struct drm_i915_private *dev_priv) +{ + /* 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_priv)) + 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_priv)) { + I915_WRITE(DSPASURF, dev_priv->saveDSPASURF); + I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF); + } + + I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF); + + i915_restore_palette(dev_priv, 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_priv)) + 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_priv)) { + I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF); + I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF); + } + + I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF); + + i915_restore_palette(dev_priv, PIPE_B); + /* Enable the plane */ + I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR); + I915_WRITE(DSPBADDR, I915_READ(DSPBADDR)); +} + +int +inteldrm_save_display(struct drm_i915_private *dev_priv) +{ + /* Display arbitration control */ + dev_priv->saveDSPARB = I915_READ(DSPARB); + + /* This is only meaningful in non-KMS mode */ + /* Don't save them in KMS mode */ + i915_save_modeset_reg(dev_priv); + /* Cursor state */ + dev_priv->saveCURACNTR = I915_READ(CURACNTR); + dev_priv->saveCURAPOS = I915_READ(CURAPOS); + dev_priv->saveCURABASE = I915_READ(CURABASE); + dev_priv->saveCURBCNTR = I915_READ(CURBCNTR); + dev_priv->saveCURBPOS = I915_READ(CURBPOS); + dev_priv->saveCURBBASE = I915_READ(CURBBASE); + if (!IS_I9XX(dev_priv)) + dev_priv->saveCURSIZE = I915_READ(CURSIZE); + + /* 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_priv)) + dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2); + if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv)) + dev_priv->saveLVDS = I915_READ(LVDS); + if (!IS_I830(dev_priv) && !IS_845G(dev_priv)) + 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); + + /* 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); + + i915_save_vga(dev_priv); + + return 0; +} + +int +inteldrm_restore_display(struct drm_i915_private *dev_priv) +{ + /* Display arbitration */ + I915_WRITE(DSPARB, dev_priv->saveDSPARB); + + /* This is only meaningful in non-KMS mode */ + /* Don't restore them in KMS mode */ + i915_restore_modeset_reg(dev_priv); + /* Cursor state */ + I915_WRITE(CURAPOS, dev_priv->saveCURAPOS); + I915_WRITE(CURACNTR, dev_priv->saveCURACNTR); + I915_WRITE(CURABASE, dev_priv->saveCURABASE); + I915_WRITE(CURBPOS, dev_priv->saveCURBPOS); + I915_WRITE(CURBCNTR, dev_priv->saveCURBCNTR); + I915_WRITE(CURBBASE, dev_priv->saveCURBBASE); + if (!IS_I9XX(dev_priv)) + I915_WRITE(CURSIZE, dev_priv->saveCURSIZE); + + /* CRT state */ + I915_WRITE(ADPA, dev_priv->saveADPA); + + /* LVDS state */ + if (IS_I965G(dev_priv)) + I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2); + if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv)) + I915_WRITE(LVDS, dev_priv->saveLVDS); + if (!IS_I830(dev_priv) && !IS_845G(dev_priv)) + 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); + + i915_restore_vga(dev_priv); + + return 0; +} + +int +inteldrm_save_state(struct drm_i915_private *dev_priv) +{ + int i; + + dev_priv->saveLBB = pci_conf_read(dev_priv->pc, dev_priv->tag, LBB); + + /* Render Standby */ + if (IS_I965G(dev_priv) && IS_MOBILE(dev_priv)) + 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); + + /* This is only meaningful in non-KMS mode */ + /* Don't save them in KMS mode */ + i915_save_modeset_reg(dev_priv); + /* Cursor state */ + dev_priv->saveCURACNTR = I915_READ(CURACNTR); + dev_priv->saveCURAPOS = I915_READ(CURAPOS); + dev_priv->saveCURABASE = I915_READ(CURABASE); + dev_priv->saveCURBCNTR = I915_READ(CURBCNTR); + dev_priv->saveCURBPOS = I915_READ(CURBPOS); + dev_priv->saveCURBBASE = I915_READ(CURBBASE); + if (!IS_I9XX(dev_priv)) + dev_priv->saveCURSIZE = I915_READ(CURSIZE); + + /* 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_priv)) + dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2); + if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv)) + dev_priv->saveLVDS = I915_READ(LVDS); + if (!IS_I830(dev_priv) && !IS_845G(dev_priv)) + 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); + + /* XXX: displayport */ + /* 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->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D); + + /* 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)); + + /* Fences */ + if (IS_I965G(dev_priv)) { + for (i = 0; i < 16; i++) + dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + + (i * 8)); + } else { + for (i = 0; i < 8; i++) + dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4)); + + if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) || + IS_G33(dev_priv)) + for (i = 0; i < 8; i++) + dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4)); + } + i915_save_vga(dev_priv); + + return 0; +} + +int +inteldrm_restore_state(struct drm_i915_private *dev_priv) +{ + int i; + + pci_conf_write(dev_priv->pc, dev_priv->tag, LBB, dev_priv->saveLBB); + + /* Render Standby */ + if (IS_I965G(dev_priv) && IS_MOBILE(dev_priv)) + 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); + + /* Fences */ + if (IS_I965G(dev_priv)) { + for (i = 0; i < 16; i++) + I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]); + } else { + for (i = 0; i < 8; i++) + I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]); + if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) || + IS_G33(dev_priv)) + for (i = 0; i < 8; i++) + I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]); + } + + /* This is only meaningful in non-KMS mode */ + /* Don't restore them in KMS mode */ + i915_restore_modeset_reg(dev_priv); + /* Cursor state */ + I915_WRITE(CURAPOS, dev_priv->saveCURAPOS); + I915_WRITE(CURACNTR, dev_priv->saveCURACNTR); + I915_WRITE(CURABASE, dev_priv->saveCURABASE); + I915_WRITE(CURBPOS, dev_priv->saveCURBPOS); + I915_WRITE(CURBCNTR, dev_priv->saveCURBCNTR); + I915_WRITE(CURBBASE, dev_priv->saveCURBBASE); + if (!IS_I9XX(dev_priv)) + I915_WRITE(CURSIZE, dev_priv->saveCURSIZE); + + /* CRT state */ + I915_WRITE(ADPA, dev_priv->saveADPA); + + /* LVDS state */ + if (IS_I965G(dev_priv)) + I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2); + if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv)) + I915_WRITE(LVDS, dev_priv->saveLVDS); + if (!IS_I830(dev_priv) && !IS_845G(dev_priv)) + 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); + + /* XXX: Display Port state */ + + /* 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 (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D); + + /* 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_priv); + + return 0; +} |