diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 051134c..9fa42dc 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -986,6 +986,7 @@ static int i915_load_modeset_init(struct drm_device *dev) unsigned long agp_size, prealloc_size; int fb_bar = IS_I9XX(dev) ? 2 : 0; int ret = 0; + u16 cmd; dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL); if (!dev->devname) { @@ -1011,6 +1012,54 @@ static int i915_load_modeset_init(struct drm_device *dev) /* Basic memrange allocator for stolen space (aka vram) */ drm_mm_init(&dev_priv->vram, 0, prealloc_size); + /* Disable clock gating reported to work incorrectly according to the + * specs. + */ + if (IS_G4X(dev)) { + u32 dspclk_gate; + + I915_WRITE(RENCLK_GATE_D1, 0); + I915_WRITE(RENCLK_GATE_D2, VF_UNIT_CLOCK_GATE_DISABLE | + GS_UNIT_CLOCK_GATE_DISABLE | + CL_UNIT_CLOCK_GATE_DISABLE); + I915_WRITE(RAMCLK_GATE_D, 0); + dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE | + OVRUNIT_CLOCK_GATE_DISABLE | + OVCUNIT_CLOCK_GATE_DISABLE; + if (IS_GM45(dev)) + dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE; + I915_WRITE(DSPCLK_GATE_D, dspclk_gate); + } else if (IS_I965GM(dev)) { + I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE); + I915_WRITE(RENCLK_GATE_D2, 0); + I915_WRITE(DSPCLK_GATE_D, 0); + I915_WRITE(RAMCLK_GATE_D, 0); + I915_WRITE16(DEUC, 0); + } else if (IS_I965G(dev)) { + I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE | + I965_RCC_CLOCK_GATE_DISABLE | + I965_RCPB_CLOCK_GATE_DISABLE | + I965_ISC_CLOCK_GATE_DISABLE | + I965_FBC_CLOCK_GATE_DISABLE); + I915_WRITE(RENCLK_GATE_D2, 0); + } else if (IS_I855(dev) || IS_I865G(dev)) { + I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE); + } else if (IS_I830(dev)) { + I915_WRITE(DSPCLK_GATE_D, OVRUNIT_CLOCK_GATE_DISABLE); + } + + /* Render Standby might cause hang issue, try always disable it.*/ + if (IS_I965GM(dev) || IS_GM45(dev)) { + u32 render_standby; + + render_standby = I915_READ(MCHBAR_RENDER_STANDBY); + if (render_standby & RENDER_STANDBY_ENABLE) { + DRM_DEBUG("Disabling render standby.\n"); + I915_WRITE(MCHBAR_RENDER_STANDBY, + (render_standby & (~RENDER_STANDBY_ENABLE))); + } + } + /* Let GEM Manage from end of prealloc space to end of aperture */ i915_gem_do_init(dev, prealloc_size, agp_size); @@ -1030,6 +1079,9 @@ static int i915_load_modeset_init(struct drm_device *dev) if (ret) goto destroy_ringbuffer; + pci_read_config_word(dev->pdev, PCI_COMMAND, &cmd); + DRM_ERROR("installed IRQ handler, IER (00x%04x): 0x%08x, PCI CMD: 0x%04x\n", IER, I915_READ(IER), cmd); + /* Always safe in the mode setting case. */ /* FIXME: do pre/post-mode set stuff in core KMS code */ dev->vblank_disable_allowed = 1; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 2506592..7ec1c53 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -199,6 +199,8 @@ typedef struct drm_i915_private { u32 saveDSPACNTR; u32 saveDSPBCNTR; u32 saveDSPARB; + u32 saveFW_BLC; + u32 saveFW_BLC_SELF; u32 saveRENDERSTANDBY; u32 saveHWS; u32 savePIPEACONF; @@ -271,7 +273,7 @@ typedef struct drm_i915_private { u32 saveIMR; u32 saveCACHE_MODE_0; u32 saveD_STATE; - u32 saveCG_2D_DIS; + u32 saveDSPCLK_GATE_D; u32 saveMI_ARB_STATE; u32 saveSWF0[16]; u32 saveSWF1[16]; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 98bb4c8..02b027b 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -612,6 +612,8 @@ int i915_driver_irq_postinstall(struct drm_device *dev) I915_WRITE(IMR, dev_priv->irq_mask_reg); (void) I915_READ(IER); + DRM_ERROR("wrote IER (0x%04x): 0x%08x\n", IER, enable_mask); + opregion_enable_asle(dev); DRM_INIT_WAITQUEUE(&dev_priv->irq_queue); @@ -638,6 +640,8 @@ void i915_driver_irq_uninstall(struct drm_device * dev) I915_WRITE(IMR, 0xffffffff); I915_WRITE(IER, 0x0); + DRM_ERROR("wrote IER (0x%04x): 0x%08x\n", IER, 0); + I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff); I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff); I915_WRITE(IIR, I915_READ(IIR)); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5211947..4872e0c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -525,8 +525,115 @@ #define DPLLA_TEST_M_BYPASS (1 << 2) #define DPLLA_INPUT_BUFFER_ENABLE (1 << 0) #define D_STATE 0x6104 -#define CG_2D_DIS 0x6200 -#define CG_3D_DIS 0x6204 +#define DSPCLK_GATE_D 0x6200 +# define DPUNIT_B_CLOCK_GATE_DISABLE (1 << 30) /* 965 */ +# define VSUNIT_CLOCK_GATE_DISABLE (1 << 29) /* 965 */ +# define VRHUNIT_CLOCK_GATE_DISABLE (1 << 28) /* 965 */ +# define VRDUNIT_CLOCK_GATE_DISABLE (1 << 27) /* 965 */ +# define AUDUNIT_CLOCK_GATE_DISABLE (1 << 26) /* 965 */ +# define DPUNIT_A_CLOCK_GATE_DISABLE (1 << 25) /* 965 */ +# define DPCUNIT_CLOCK_GATE_DISABLE (1 << 24) /* 965 */ +# define TVRUNIT_CLOCK_GATE_DISABLE (1 << 23) /* 915-945 */ +# define TVCUNIT_CLOCK_GATE_DISABLE (1 << 22) /* 915-945 */ +# define TVFUNIT_CLOCK_GATE_DISABLE (1 << 21) /* 915-945 */ +# define TVEUNIT_CLOCK_GATE_DISABLE (1 << 20) /* 915-945 */ +# define DVSUNIT_CLOCK_GATE_DISABLE (1 << 19) /* 915-945 */ +# define DSSUNIT_CLOCK_GATE_DISABLE (1 << 18) /* 915-945 */ +# define DDBUNIT_CLOCK_GATE_DISABLE (1 << 17) /* 915-945 */ +# define DPRUNIT_CLOCK_GATE_DISABLE (1 << 16) /* 915-945 */ +# define DPFUNIT_CLOCK_GATE_DISABLE (1 << 15) /* 915-945 */ +# define DPBMUNIT_CLOCK_GATE_DISABLE (1 << 14) /* 915-945 */ +# define DPLSUNIT_CLOCK_GATE_DISABLE (1 << 13) /* 915-945 */ +# define DPLUNIT_CLOCK_GATE_DISABLE (1 << 12) /* 915-945 */ +# define DPOUNIT_CLOCK_GATE_DISABLE (1 << 11) +# define DPBUNIT_CLOCK_GATE_DISABLE (1 << 10) +# define DCUNIT_CLOCK_GATE_DISABLE (1 << 9) +# define DPUNIT_CLOCK_GATE_DISABLE (1 << 8) +# define VRUNIT_CLOCK_GATE_DISABLE (1 << 7) /* 915+: reserved */ +# define OVHUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 830-865 */ +# define DPIOUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 915-945 */ +# define OVFUNIT_CLOCK_GATE_DISABLE (1 << 5) +# define OVBUNIT_CLOCK_GATE_DISABLE (1 << 4) +/** + * This bit must be set on the 830 to prevent hangs when turning off the + * overlay scaler. + */ +# define OVRUNIT_CLOCK_GATE_DISABLE (1 << 3) +# define OVCUNIT_CLOCK_GATE_DISABLE (1 << 2) +# define OVUUNIT_CLOCK_GATE_DISABLE (1 << 1) +# define ZVUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 830 */ +# define OVLUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 845,865 */ + +#define RENCLK_GATE_D1 0x6204 +# define BLITTER_CLOCK_GATE_DISABLE (1 << 13) /* 945GM only */ +# define MPEG_CLOCK_GATE_DISABLE (1 << 12) /* 945GM only */ +# define PC_FE_CLOCK_GATE_DISABLE (1 << 11) +# define PC_BE_CLOCK_GATE_DISABLE (1 << 10) +# define WINDOWER_CLOCK_GATE_DISABLE (1 << 9) +# define INTERPOLATOR_CLOCK_GATE_DISABLE (1 << 8) +# define COLOR_CALCULATOR_CLOCK_GATE_DISABLE (1 << 7) +# define MOTION_COMP_CLOCK_GATE_DISABLE (1 << 6) +# define MAG_CLOCK_GATE_DISABLE (1 << 5) +/** This bit must be unset on 855,865 */ +# define MECI_CLOCK_GATE_DISABLE (1 << 4) +# define DCMP_CLOCK_GATE_DISABLE (1 << 3) +# define MEC_CLOCK_GATE_DISABLE (1 << 2) +# define MECO_CLOCK_GATE_DISABLE (1 << 1) +/** This bit must be set on 855,865. */ +# define SV_CLOCK_GATE_DISABLE (1 << 0) +# define I915_MPEG_CLOCK_GATE_DISABLE (1 << 16) +# define I915_VLD_IP_PR_CLOCK_GATE_DISABLE (1 << 15) +# define I915_MOTION_COMP_CLOCK_GATE_DISABLE (1 << 14) +# define I915_BD_BF_CLOCK_GATE_DISABLE (1 << 13) +# define I915_SF_SE_CLOCK_GATE_DISABLE (1 << 12) +# define I915_WM_CLOCK_GATE_DISABLE (1 << 11) +# define I915_IZ_CLOCK_GATE_DISABLE (1 << 10) +# define I915_PI_CLOCK_GATE_DISABLE (1 << 9) +# define I915_DI_CLOCK_GATE_DISABLE (1 << 8) +# define I915_SH_SV_CLOCK_GATE_DISABLE (1 << 7) +# define I915_PL_DG_QC_FT_CLOCK_GATE_DISABLE (1 << 6) +# define I915_SC_CLOCK_GATE_DISABLE (1 << 5) +# define I915_FL_CLOCK_GATE_DISABLE (1 << 4) +# define I915_DM_CLOCK_GATE_DISABLE (1 << 3) +# define I915_PS_CLOCK_GATE_DISABLE (1 << 2) +# define I915_CC_CLOCK_GATE_DISABLE (1 << 1) +# define I915_BY_CLOCK_GATE_DISABLE (1 << 0) + +# define I965_RCZ_CLOCK_GATE_DISABLE (1 << 30) +/** This bit must always be set on 965G/965GM */ +# define I965_RCC_CLOCK_GATE_DISABLE (1 << 29) +# define I965_RCPB_CLOCK_GATE_DISABLE (1 << 28) +# define I965_DAP_CLOCK_GATE_DISABLE (1 << 27) +# define I965_ROC_CLOCK_GATE_DISABLE (1 << 26) +# define I965_GW_CLOCK_GATE_DISABLE (1 << 25) +# define I965_TD_CLOCK_GATE_DISABLE (1 << 24) +/** This bit must always be set on 965G */ +# define I965_ISC_CLOCK_GATE_DISABLE (1 << 23) +# define I965_IC_CLOCK_GATE_DISABLE (1 << 22) +# define I965_EU_CLOCK_GATE_DISABLE (1 << 21) +# define I965_IF_CLOCK_GATE_DISABLE (1 << 20) +# define I965_TC_CLOCK_GATE_DISABLE (1 << 19) +# define I965_SO_CLOCK_GATE_DISABLE (1 << 17) +# define I965_FBC_CLOCK_GATE_DISABLE (1 << 16) +# define I965_MARI_CLOCK_GATE_DISABLE (1 << 15) +# define I965_MASF_CLOCK_GATE_DISABLE (1 << 14) +# define I965_MAWB_CLOCK_GATE_DISABLE (1 << 13) +# define I965_EM_CLOCK_GATE_DISABLE (1 << 12) +# define I965_UC_CLOCK_GATE_DISABLE (1 << 11) +# define I965_SI_CLOCK_GATE_DISABLE (1 << 6) +# define I965_MT_CLOCK_GATE_DISABLE (1 << 5) +# define I965_PL_CLOCK_GATE_DISABLE (1 << 4) +# define I965_DG_CLOCK_GATE_DISABLE (1 << 3) +# define I965_QC_CLOCK_GATE_DISABLE (1 << 2) +# define I965_FT_CLOCK_GATE_DISABLE (1 << 1) +# define I965_DM_CLOCK_GATE_DISABLE (1 << 0) + +#define RENCLK_GATE_D2 0x6208 +#define VF_UNIT_CLOCK_GATE_DISABLE (1 << 9) +#define GS_UNIT_CLOCK_GATE_DISABLE (1 << 7) +#define CL_UNIT_CLOCK_GATE_DISABLE (1 << 6) +#define RAMCLK_GATE_D 0x6210 /* CRL only */ +#define DEUC 0x6214 /* CRL only */ /* * Palette regs @@ -562,6 +669,7 @@ /** GM965 GM45 render standby register */ #define MCHBAR_RENDER_STANDBY 0x111B8 +#define RENDER_STANDBY_ENABLE (1 << 30) #define PEG_BAND_GAP_DATA 0x14d68 diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index d669cc2..c30d307 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -239,6 +239,10 @@ int i915_save_state(struct drm_device *dev) /* Display arbitration control */ dev_priv->saveDSPARB = I915_READ(DSPARB); + /* FIFO watermarks */ + dev_priv->saveFW_BLC = I915_READ(FW_BLC); + dev_priv->saveFW_BLC_SELF = I915_READ(FW_BLC_SELF); + /* Pipe & plane A info */ dev_priv->savePIPEACONF = I915_READ(PIPEACONF); dev_priv->savePIPEASRC = I915_READ(PIPEASRC); @@ -333,7 +337,7 @@ int i915_save_state(struct drm_device *dev) /* Clock gating state */ dev_priv->saveD_STATE = I915_READ(D_STATE); - dev_priv->saveCG_2D_DIS = I915_READ(CG_2D_DIS); + dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D); /* Cache mode state */ dev_priv->saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0); @@ -371,6 +375,10 @@ int i915_restore_state(struct drm_device *dev) /* Display arbitration */ I915_WRITE(DSPARB, dev_priv->saveDSPARB); + /* FIFO watermarks */ + I915_WRITE(FW_BLC, dev_priv->saveFW_BLC); + I915_WRITE(FW_BLC_SELF, dev_priv->saveFW_BLC_SELF); + /* Pipe & plane A info */ /* Prime the clock */ if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) { @@ -491,7 +499,7 @@ int i915_restore_state(struct drm_device *dev) /* Clock gating state */ I915_WRITE (D_STATE, dev_priv->saveD_STATE); - I915_WRITE (CG_2D_DIS, dev_priv->saveCG_2D_DIS); + I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D); /* Cache mode state */ I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);