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Commit 42048781 authored by Zhenyu Wang's avatar Zhenyu Wang Committed by Eric Anholt
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drm/i915: Ironlake suspend/resume support 

This adds registers save/restore for Ironlake to make suspend work.
Signed-off-by: default avatarGuo, Chaohong <chaohong.guo@intel.com>
[zhenyuw: some code re-orgnization, and add more save/restore for
FDI link and transcoder registers, also fix palette register for Ironlake]
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent fe798b97
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Showing with 256 additions and 55 deletions
drivers/gpu/drm/i915/i915_drv.h
View file @ 42048781
......@@ -296,6 +296,12 @@ typedef struct drm_i915_private {
u32 saveVBLANK_A;
u32 saveVSYNC_A;
u32 saveBCLRPAT_A;
u32 saveTRANS_HTOTAL_A;
u32 saveTRANS_HBLANK_A;
u32 saveTRANS_HSYNC_A;
u32 saveTRANS_VTOTAL_A;
u32 saveTRANS_VBLANK_A;
u32 saveTRANS_VSYNC_A;
u32 savePIPEASTAT;
u32 saveDSPASTRIDE;
u32 saveDSPASIZE;
......@@ -307,6 +313,8 @@ typedef struct drm_i915_private {
u32 saveBLC_HIST_CTL;
u32 saveBLC_PWM_CTL;
u32 saveBLC_PWM_CTL2;
u32 saveBLC_CPU_PWM_CTL;
u32 saveBLC_CPU_PWM_CTL2;
u32 saveFPB0;
u32 saveFPB1;
u32 saveDPLL_B;
......@@ -318,6 +326,12 @@ typedef struct drm_i915_private {
u32 saveVBLANK_B;
u32 saveVSYNC_B;
u32 saveBCLRPAT_B;
u32 saveTRANS_HTOTAL_B;
u32 saveTRANS_HBLANK_B;
u32 saveTRANS_HSYNC_B;
u32 saveTRANS_VTOTAL_B;
u32 saveTRANS_VBLANK_B;
u32 saveTRANS_VSYNC_B;
u32 savePIPEBSTAT;
u32 saveDSPBSTRIDE;
u32 saveDSPBSIZE;
......@@ -351,6 +365,12 @@ typedef struct drm_i915_private {
u32 saveIER;
u32 saveIIR;
u32 saveIMR;
u32 saveDEIER;
u32 saveDEIMR;
u32 saveGTIER;
u32 saveGTIMR;
u32 saveFDI_RXA_IMR;
u32 saveFDI_RXB_IMR;
u32 saveCACHE_MODE_0;
u32 saveD_STATE;
u32 saveDSPCLK_GATE_D;
......@@ -384,6 +404,16 @@ typedef struct drm_i915_private {
u32 savePIPEB_DP_LINK_M;
u32 savePIPEA_DP_LINK_N;
u32 savePIPEB_DP_LINK_N;
u32 saveFDI_RXA_CTL;
u32 saveFDI_TXA_CTL;
u32 saveFDI_RXB_CTL;
u32 saveFDI_TXB_CTL;
u32 savePFA_CTL_1;
u32 savePFB_CTL_1;
u32 savePFA_WIN_SZ;
u32 savePFB_WIN_SZ;
u32 savePFA_WIN_POS;
u32 savePFB_WIN_POS;
struct {
struct drm_mm gtt_space;
......
drivers/gpu/drm/i915/i915_suspend.c
View file @ 42048781
......@@ -32,11 +32,15 @@
static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 dpll_reg;
if (pipe == PIPE_A)
return (I915_READ(DPLL_A) & DPLL_VCO_ENABLE);
else
return (I915_READ(DPLL_B) & DPLL_VCO_ENABLE);
if (IS_IGDNG(dev)) {
dpll_reg = (pipe == PIPE_A) ? PCH_DPLL_A: PCH_DPLL_B;
} else {
dpll_reg = (pipe == PIPE_A) ? DPLL_A: DPLL_B;
}
return (I915_READ(dpll_reg) & DPLL_VCO_ENABLE);
}
static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
......@@ -49,6 +53,9 @@ static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
if (!i915_pipe_enabled(dev, pipe))
return;
if (IS_IGDNG(dev))
reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B;
if (pipe == PIPE_A)
array = dev_priv->save_palette_a;
else
......@@ -68,6 +75,9 @@ static void i915_restore_palette(struct drm_device *dev, enum pipe pipe)
if (!i915_pipe_enabled(dev, pipe))
return;
if (IS_IGDNG(dev))
reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B;
if (pipe == PIPE_A)
array = dev_priv->save_palette_a;
else
......@@ -232,10 +242,16 @@ static void i915_save_modeset_reg(struct drm_device *dev)
/* Pipe & plane A info */
dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
if (IS_IGDNG(dev)) {
dev_priv->saveFPA0 = I915_READ(PCH_FPA0);
dev_priv->saveFPA1 = I915_READ(PCH_FPA1);
dev_priv->saveDPLL_A = I915_READ(PCH_DPLL_A);
} else {
dev_priv->saveFPA0 = I915_READ(FPA0);
dev_priv->saveFPA1 = I915_READ(FPA1);
dev_priv->saveDPLL_A = I915_READ(DPLL_A);
if (IS_I965G(dev))
}
if (IS_I965G(dev) && !IS_IGDNG(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);
......@@ -243,8 +259,25 @@ static void i915_save_modeset_reg(struct drm_device *dev)
dev_priv->saveVTOTAL_A = I915_READ(VTOTAL_A);
dev_priv->saveVBLANK_A = I915_READ(VBLANK_A);
dev_priv->saveVSYNC_A = I915_READ(VSYNC_A);
if (!IS_IGDNG(dev))
dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
if (IS_IGDNG(dev)) {
dev_priv->saveFDI_TXA_CTL = I915_READ(FDI_TXA_CTL);
dev_priv->saveFDI_RXA_CTL = I915_READ(FDI_RXA_CTL);
dev_priv->savePFA_CTL_1 = I915_READ(PFA_CTL_1);
dev_priv->savePFA_WIN_SZ = I915_READ(PFA_WIN_SZ);
dev_priv->savePFA_WIN_POS = I915_READ(PFA_WIN_POS);
dev_priv->saveTRANS_HTOTAL_A = I915_READ(TRANS_HTOTAL_A);
dev_priv->saveTRANS_HBLANK_A = I915_READ(TRANS_HBLANK_A);
dev_priv->saveTRANS_HSYNC_A = I915_READ(TRANS_HSYNC_A);
dev_priv->saveTRANS_VTOTAL_A = I915_READ(TRANS_VTOTAL_A);
dev_priv->saveTRANS_VBLANK_A = I915_READ(TRANS_VBLANK_A);
dev_priv->saveTRANS_VSYNC_A = I915_READ(TRANS_VSYNC_A);
}
dev_priv->saveDSPACNTR = I915_READ(DSPACNTR);
dev_priv->saveDSPASTRIDE = I915_READ(DSPASTRIDE);
dev_priv->saveDSPASIZE = I915_READ(DSPASIZE);
......@@ -260,10 +293,16 @@ static void i915_save_modeset_reg(struct drm_device *dev)
/* Pipe & plane B info */
dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF);
dev_priv->savePIPEBSRC = I915_READ(PIPEBSRC);
if (IS_IGDNG(dev)) {
dev_priv->saveFPB0 = I915_READ(PCH_FPB0);
dev_priv->saveFPB1 = I915_READ(PCH_FPB1);
dev_priv->saveDPLL_B = I915_READ(PCH_DPLL_B);
} else {
dev_priv->saveFPB0 = I915_READ(FPB0);
dev_priv->saveFPB1 = I915_READ(FPB1);
dev_priv->saveDPLL_B = I915_READ(DPLL_B);
if (IS_I965G(dev))
}
if (IS_I965G(dev) && !IS_IGDNG(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);
......@@ -271,7 +310,24 @@ static void i915_save_modeset_reg(struct drm_device *dev)
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);
if (!IS_IGDNG(dev))
dev_priv->saveBCLRPAT_B = I915_READ(BCLRPAT_B);
if (IS_IGDNG(dev)) {
dev_priv->saveFDI_TXB_CTL = I915_READ(FDI_TXB_CTL);
dev_priv->saveFDI_RXB_CTL = I915_READ(FDI_RXB_CTL);
dev_priv->savePFB_CTL_1 = I915_READ(PFB_CTL_1);
dev_priv->savePFB_WIN_SZ = I915_READ(PFB_WIN_SZ);
dev_priv->savePFB_WIN_POS = I915_READ(PFB_WIN_POS);
dev_priv->saveTRANS_HTOTAL_B = I915_READ(TRANS_HTOTAL_B);
dev_priv->saveTRANS_HBLANK_B = I915_READ(TRANS_HBLANK_B);
dev_priv->saveTRANS_HSYNC_B = I915_READ(TRANS_HSYNC_B);
dev_priv->saveTRANS_VTOTAL_B = I915_READ(TRANS_VTOTAL_B);
dev_priv->saveTRANS_VBLANK_B = I915_READ(TRANS_VBLANK_B);
dev_priv->saveTRANS_VSYNC_B = I915_READ(TRANS_VSYNC_B);
}
dev_priv->saveDSPBCNTR = I915_READ(DSPBCNTR);
dev_priv->saveDSPBSTRIDE = I915_READ(DSPBSTRIDE);
......@@ -290,23 +346,41 @@ static void i915_save_modeset_reg(struct drm_device *dev)
static void i915_restore_modeset_reg(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int dpll_a_reg, fpa0_reg, fpa1_reg;
int dpll_b_reg, fpb0_reg, fpb1_reg;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return;
if (IS_IGDNG(dev)) {
dpll_a_reg = PCH_DPLL_A;
dpll_b_reg = PCH_DPLL_B;
fpa0_reg = PCH_FPA0;
fpb0_reg = PCH_FPB0;
fpa1_reg = PCH_FPA1;
fpb1_reg = PCH_FPB1;
} else {
dpll_a_reg = DPLL_A;
dpll_b_reg = DPLL_B;
fpa0_reg = FPA0;
fpb0_reg = FPB0;
fpa1_reg = FPA1;
fpb1_reg = FPB1;
}
/* Pipe & plane A info */
/* Prime the clock */
if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A &
~DPLL_VCO_ENABLE);
DRM_UDELAY(150);
}
I915_WRITE(FPA0, dev_priv->saveFPA0);
I915_WRITE(FPA1, dev_priv->saveFPA1);
I915_WRITE(fpa0_reg, dev_priv->saveFPA0);
I915_WRITE(fpa1_reg, dev_priv->saveFPA1);
/* Actually enable it */
I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A);
DRM_UDELAY(150);
if (IS_I965G(dev))
if (IS_I965G(dev) && !IS_IGDNG(dev))
I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
DRM_UDELAY(150);
......@@ -317,8 +391,25 @@ static void i915_restore_modeset_reg(struct drm_device *dev)
I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
if (!IS_IGDNG(dev))
I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
if (IS_IGDNG(dev)) {
I915_WRITE(FDI_RXA_CTL, dev_priv->saveFDI_RXA_CTL);
I915_WRITE(FDI_TXA_CTL, dev_priv->saveFDI_TXA_CTL);
I915_WRITE(PFA_CTL_1, dev_priv->savePFA_CTL_1);
I915_WRITE(PFA_WIN_SZ, dev_priv->savePFA_WIN_SZ);
I915_WRITE(PFA_WIN_POS, dev_priv->savePFA_WIN_POS);
I915_WRITE(TRANS_HTOTAL_A, dev_priv->saveTRANS_HTOTAL_A);
I915_WRITE(TRANS_HBLANK_A, dev_priv->saveTRANS_HBLANK_A);
I915_WRITE(TRANS_HSYNC_A, dev_priv->saveTRANS_HSYNC_A);
I915_WRITE(TRANS_VTOTAL_A, dev_priv->saveTRANS_VTOTAL_A);
I915_WRITE(TRANS_VBLANK_A, dev_priv->saveTRANS_VBLANK_A);
I915_WRITE(TRANS_VSYNC_A, dev_priv->saveTRANS_VSYNC_A);
}
/* Restore plane info */
I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS);
......@@ -339,14 +430,14 @@ static void i915_restore_modeset_reg(struct drm_device *dev)
/* Pipe & plane B info */
if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B &
~DPLL_VCO_ENABLE);
DRM_UDELAY(150);
}
I915_WRITE(FPB0, dev_priv->saveFPB0);
I915_WRITE(FPB1, dev_priv->saveFPB1);
I915_WRITE(fpb0_reg, dev_priv->saveFPB0);
I915_WRITE(fpb1_reg, dev_priv->saveFPB1);
/* Actually enable it */
I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B);
DRM_UDELAY(150);
if (IS_I965G(dev))
I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
......@@ -359,8 +450,25 @@ static void i915_restore_modeset_reg(struct drm_device *dev)
I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
if (!IS_IGDNG(dev))
I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
if (IS_IGDNG(dev)) {
I915_WRITE(FDI_RXB_CTL, dev_priv->saveFDI_RXB_CTL);
I915_WRITE(FDI_TXB_CTL, dev_priv->saveFDI_TXB_CTL);
I915_WRITE(PFB_CTL_1, dev_priv->savePFB_CTL_1);
I915_WRITE(PFB_WIN_SZ, dev_priv->savePFB_WIN_SZ);
I915_WRITE(PFB_WIN_POS, dev_priv->savePFB_WIN_POS);
I915_WRITE(TRANS_HTOTAL_B, dev_priv->saveTRANS_HTOTAL_B);
I915_WRITE(TRANS_HBLANK_B, dev_priv->saveTRANS_HBLANK_B);
I915_WRITE(TRANS_HSYNC_B, dev_priv->saveTRANS_HSYNC_B);
I915_WRITE(TRANS_VTOTAL_B, dev_priv->saveTRANS_VTOTAL_B);
I915_WRITE(TRANS_VBLANK_B, dev_priv->saveTRANS_VBLANK_B);
I915_WRITE(TRANS_VSYNC_B, dev_priv->saveTRANS_VSYNC_B);
}
/* Restore plane info */
I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS);
......@@ -404,9 +512,21 @@ void i915_save_display(struct drm_device *dev)
dev_priv->saveCURSIZE = I915_READ(CURSIZE);
/* CRT state */
if (IS_IGDNG(dev)) {
dev_priv->saveADPA = I915_READ(PCH_ADPA);
} else {
dev_priv->saveADPA = I915_READ(ADPA);
}
/* LVDS state */
if (IS_IGDNG(dev)) {
dev_priv->savePP_CONTROL = I915_READ(PCH_PP_CONTROL);
dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_PCH_CTL1);
dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_PCH_CTL2);
dev_priv->saveBLC_CPU_PWM_CTL = I915_READ(BLC_PWM_CPU_CTL);
dev_priv->saveBLC_CPU_PWM_CTL2 = I915_READ(BLC_PWM_CPU_CTL2);
dev_priv->saveLVDS = I915_READ(PCH_LVDS);
} else {
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);
......@@ -415,11 +535,20 @@ void i915_save_display(struct drm_device *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))
}
if (!IS_I830(dev) && !IS_845G(dev) && !IS_IGDNG(dev))
dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
if (IS_IGDNG(dev)) {
dev_priv->savePP_ON_DELAYS = I915_READ(PCH_PP_ON_DELAYS);
dev_priv->savePP_OFF_DELAYS = I915_READ(PCH_PP_OFF_DELAYS);
dev_priv->savePP_DIVISOR = I915_READ(PCH_PP_DIVISOR);
} else {
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);
}
/* Display Port state */
if (SUPPORTS_INTEGRATED_DP(dev)) {
......@@ -451,6 +580,9 @@ void i915_save_display(struct drm_device *dev)
dev_priv->saveVGA0 = I915_READ(VGA0);
dev_priv->saveVGA1 = I915_READ(VGA1);
dev_priv->saveVGA_PD = I915_READ(VGA_PD);
if (IS_IGDNG(dev))
dev_priv->saveVGACNTRL = I915_READ(CPU_VGACNTRL);
else
dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
i915_save_vga(dev);
......@@ -490,16 +622,33 @@ void i915_restore_display(struct drm_device *dev)
I915_WRITE(CURSIZE, dev_priv->saveCURSIZE);
/* CRT state */
if (IS_IGDNG(dev))
I915_WRITE(PCH_ADPA, dev_priv->saveADPA);
else
I915_WRITE(ADPA, dev_priv->saveADPA);
/* LVDS state */
if (IS_I965G(dev))
if (IS_I965G(dev) && !IS_IGDNG(dev))
I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2);
if (IS_MOBILE(dev) && !IS_I830(dev))
if (IS_IGDNG(dev)) {
I915_WRITE(PCH_LVDS, dev_priv->saveLVDS);
} else if (IS_MOBILE(dev) && !IS_I830(dev))
I915_WRITE(LVDS, dev_priv->saveLVDS);
if (!IS_I830(dev) && !IS_845G(dev))
if (!IS_I830(dev) && !IS_845G(dev) && !IS_IGDNG(dev))
I915_WRITE(PFIT_CONTROL, dev_priv->savePFIT_CONTROL);
if (IS_IGDNG(dev)) {
I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->saveBLC_PWM_CTL);
I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->saveBLC_PWM_CTL2);
I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL);
I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->saveBLC_CPU_PWM_CTL2);
I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR);
I915_WRITE(PCH_PP_CONTROL, dev_priv->savePP_CONTROL);
} else {
I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS);
I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL);
I915_WRITE(BLC_HIST_CTL, dev_priv->saveBLC_HIST_CTL);
......@@ -507,6 +656,7 @@ void i915_restore_display(struct drm_device *dev)
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);
}
/* Display Port state */
if (SUPPORTS_INTEGRATED_DP(dev)) {
......@@ -529,6 +679,9 @@ void i915_restore_display(struct drm_device *dev)
}
/* VGA state */
if (IS_IGDNG(dev))
I915_WRITE(CPU_VGACNTRL, dev_priv->saveVGACNTRL);
else
I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL);
I915_WRITE(VGA0, dev_priv->saveVGA0);
I915_WRITE(VGA1, dev_priv->saveVGA1);
......@@ -555,8 +708,17 @@ int i915_save_state(struct drm_device *dev)
i915_save_display(dev);
/* Interrupt state */
if (IS_IGDNG(dev)) {
dev_priv->saveDEIER = I915_READ(DEIER);
dev_priv->saveDEIMR = I915_READ(DEIMR);
dev_priv->saveGTIER = I915_READ(GTIER);
dev_priv->saveGTIMR = I915_READ(GTIMR);
dev_priv->saveFDI_RXA_IMR = I915_READ(FDI_RXA_IMR);
dev_priv->saveFDI_RXB_IMR = I915_READ(FDI_RXB_IMR);
} else {
dev_priv->saveIER = I915_READ(IER);
dev_priv->saveIMR = I915_READ(IMR);
}
/* Clock gating state */
dev_priv->saveD_STATE = I915_READ(D_STATE);
......@@ -621,8 +783,17 @@ int i915_restore_state(struct drm_device *dev)
i915_restore_display(dev);
/* Interrupt state */
if (IS_IGDNG(dev)) {
I915_WRITE(DEIER, dev_priv->saveDEIER);
I915_WRITE(DEIMR, dev_priv->saveDEIMR);
I915_WRITE(GTIER, dev_priv->saveGTIER);
I915_WRITE(GTIMR, dev_priv->saveGTIMR);
I915_WRITE(FDI_RXA_IMR, dev_priv->saveFDI_RXA_IMR);
I915_WRITE(FDI_RXB_IMR, dev_priv->saveFDI_RXB_IMR);
} else {
I915_WRITE (IER, dev_priv->saveIER);
I915_WRITE (IMR, dev_priv->saveIMR);
}
/* Clock gating state */
I915_WRITE (D_STATE, dev_priv->saveD_STATE);
......
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