diff options
| -rw-r--r-- | drivers/gpu/drm/gma500/cdv_intel_display.c | 331 | ||||
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_intel_drv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_intel_reg.h | 25 |
3 files changed, 294 insertions, 65 deletions
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c index be84559..07b37f5 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_display.c +++ b/drivers/gpu/drm/gma500/cdv_intel_display.c @@ -216,7 +216,7 @@ static void cdv_sb_reset(struct drm_device *dev) */ static int cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc, - struct cdv_intel_clock_t *clock) + struct cdv_intel_clock_t *clock, bool is_lvds) { struct psb_intel_crtc *psb_crtc = to_psb_intel_crtc(crtc); @@ -224,6 +224,7 @@ cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc, u32 m, n_vco, p; int ret = 0; int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; + int ref_sfr = (pipe == 0) ? SB_REF_DPLLA : SB_REF_DPLLB; u32 ref_value; cdv_sb_reset(dev); @@ -241,6 +242,35 @@ cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc, /* We don't know what the other fields of these regs are, so * leave them in place. */ + /* + * The BIT 14:13 of 0x8010/0x8030 is used to select the ref clk + * for the pipe A/B. Display spec 1.06 has wrong definition. + * Correct definition is like below: + * + * refclka mean use clock from same PLL + * + * if DPLLA sets 01 and DPLLB sets 01, they use clock from their pll + * + * if DPLLA sets 01 and DPLLB sets 02, both use clk from DPLLA + * + */ + ret = cdv_sb_read(dev, ref_sfr, &ref_value); + if (ret) + return ret; + ref_value &= ~(REF_CLK_MASK); + + /* use DPLL_A for pipeB on CRT/HDMI */ + if (pipe == 1 && !is_lvds) { + DRM_DEBUG_KMS("use DPLLA for pipe B\n"); + ref_value |= REF_CLK_DPLLA; + } else { + DRM_DEBUG_KMS("use their DPLL for pipe A/B\n"); + ref_value |= REF_CLK_DPLL; + } + ret = cdv_sb_write(dev, ref_sfr, ref_value); + if (ret) + return ret; + ret = cdv_sb_read(dev, SB_M(pipe), &m); if (ret) return ret; @@ -308,7 +338,7 @@ cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc, return ret; /* always Program the Lane Register for the Pipe A*/ - if (pipe == 0) { +/* if (pipe == 0) */ { /* Program the Lane0/1 for HDMI B */ u32 lane_reg, lane_value; @@ -553,6 +583,200 @@ psb_intel_pipe_set_base_exit: return ret; } +#define FIFO_PIPEA (1 << 0) +#define FIFO_PIPEB (1 << 1) + +static bool cdv_intel_pipe_enabled(struct drm_device *dev, int pipe) +{ + struct drm_crtc *crtc; + struct drm_psb_private *dev_priv = dev->dev_private; + struct psb_intel_crtc *psb_intel_crtc = NULL; + + crtc = dev_priv->pipe_to_crtc_mapping[pipe]; + psb_intel_crtc = to_psb_intel_crtc(crtc); + + if (crtc->fb == NULL || !psb_intel_crtc->active) + return false; + return true; +} + +static bool cdv_intel_single_pipe_active (struct drm_device *dev) +{ + uint32_t pipe_enabled = 0; + + if (cdv_intel_pipe_enabled(dev, 0)) + pipe_enabled |= FIFO_PIPEA; + + if (cdv_intel_pipe_enabled(dev, 1)) + pipe_enabled |= FIFO_PIPEB; + + + DRM_DEBUG_KMS("pipe enabled %x\n", pipe_enabled); + + if (pipe_enabled == FIFO_PIPEA || pipe_enabled == FIFO_PIPEB) + return true; + else + return false; +} + +static bool is_pipeb_lvds(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc); + struct drm_mode_config *mode_config = &dev->mode_config; + struct drm_connector *connector; + + if (psb_intel_crtc->pipe != 1) + return false; + + list_for_each_entry(connector, &mode_config->connector_list, head) { + struct psb_intel_encoder *psb_intel_encoder = + psb_intel_attached_encoder(connector); + + if (!connector->encoder + || connector->encoder->crtc != crtc) + continue; + + if (psb_intel_encoder->type == INTEL_OUTPUT_LVDS) + return true; + } + + return false; +} + +static void cdv_intel_disable_self_refresh (struct drm_device *dev) +{ + if (REG_READ(FW_BLC_SELF) & FW_BLC_SELF_EN) { + + /* Disable self-refresh before adjust WM */ + REG_WRITE(FW_BLC_SELF, (REG_READ(FW_BLC_SELF) & ~FW_BLC_SELF_EN)); + REG_READ(FW_BLC_SELF); + + cdv_intel_wait_for_vblank(dev); + + /* Cedarview workaround to write ovelay plane, which force to leave + * MAX_FIFO state. + */ + REG_WRITE(OV_OVADD, 0/*dev_priv->ovl_offset*/); + REG_READ(OV_OVADD); + + cdv_intel_wait_for_vblank(dev); + } + +} + +static void cdv_intel_update_watermark (struct drm_device *dev, struct drm_crtc *crtc) +{ + + if (cdv_intel_single_pipe_active(dev)) { + u32 fw; + + fw = REG_READ(DSPFW1); + fw &= ~DSP_FIFO_SR_WM_MASK; + fw |= (0x7e << DSP_FIFO_SR_WM_SHIFT); + fw &= ~CURSOR_B_FIFO_WM_MASK; + fw |= (0x4 << CURSOR_B_FIFO_WM_SHIFT); + REG_WRITE(DSPFW1, fw); + + fw = REG_READ(DSPFW2); + fw &= ~CURSOR_A_FIFO_WM_MASK; + fw |= (0x6 << CURSOR_A_FIFO_WM_SHIFT); + fw &= ~DSP_PLANE_C_FIFO_WM_MASK; + fw |= (0x8 << DSP_PLANE_C_FIFO_WM_SHIFT); + REG_WRITE(DSPFW2, fw); + + REG_WRITE(DSPFW3, 0x36000000); + + /* ignore FW4 */ + + if (is_pipeb_lvds(dev, crtc)) { + REG_WRITE(DSPFW5, 0x00040330); + } else { + fw = (3 << DSP_PLANE_B_FIFO_WM1_SHIFT) | + (4 << DSP_PLANE_A_FIFO_WM1_SHIFT) | + (3 << CURSOR_B_FIFO_WM1_SHIFT) | + (4 << CURSOR_FIFO_SR_WM1_SHIFT); + REG_WRITE(DSPFW5, fw); + } + + REG_WRITE(DSPFW6, 0x10); + + cdv_intel_wait_for_vblank(dev); + + /* enable self-refresh for single pipe active */ + REG_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); + REG_READ(FW_BLC_SELF); + cdv_intel_wait_for_vblank(dev); + + } else { + + /* HW team suggested values... */ + REG_WRITE(DSPFW1, 0x3f880808); + REG_WRITE(DSPFW2, 0x0b020202); + REG_WRITE(DSPFW3, 0x24000000); + REG_WRITE(DSPFW4, 0x08030202); + REG_WRITE(DSPFW5, 0x01010101); + REG_WRITE(DSPFW6, 0x1d0); + + cdv_intel_wait_for_vblank(dev); + + cdv_intel_disable_self_refresh(dev); + + } +} + +/** Loads the palette/gamma unit for the CRTC with the prepared values */ +static void cdv_intel_crtc_load_lut(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_psb_private *dev_priv = + (struct drm_psb_private *)dev->dev_private; + struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc); + int palreg = PALETTE_A; + int i; + + /* The clocks have to be on to load the palette. */ + if (!crtc->enabled) + return; + + switch (psb_intel_crtc->pipe) { + case 0: + break; + case 1: + palreg = PALETTE_B; + break; + case 2: + palreg = PALETTE_C; + break; + default: + dev_err(dev->dev, "Illegal Pipe Number.\n"); + return; + } + + if (gma_power_begin(dev, false)) { + for (i = 0; i < 256; i++) { + REG_WRITE(palreg + 4 * i, + ((psb_intel_crtc->lut_r[i] + + psb_intel_crtc->lut_adj[i]) << 16) | + ((psb_intel_crtc->lut_g[i] + + psb_intel_crtc->lut_adj[i]) << 8) | + (psb_intel_crtc->lut_b[i] + + psb_intel_crtc->lut_adj[i])); + } + gma_power_end(dev); + } else { + for (i = 0; i < 256; i++) { + dev_priv->regs.psb.save_palette_a[i] = + ((psb_intel_crtc->lut_r[i] + + psb_intel_crtc->lut_adj[i]) << 16) | + ((psb_intel_crtc->lut_g[i] + + psb_intel_crtc->lut_adj[i]) << 8) | + (psb_intel_crtc->lut_b[i] + + psb_intel_crtc->lut_adj[i]); + } + + } +} + /** * Sets the power management mode of the pipe and plane. * @@ -568,15 +792,23 @@ static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode) int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; int dspbase_reg = (pipe == 0) ? DSPABASE : DSPBBASE; int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; + int pipestat_reg = (pipe == 0) ? PIPEASTAT : PIPEBSTAT; u32 temp; /* XXX: When our outputs are all unaware of DPMS modes other than off * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. */ + cdv_intel_disable_self_refresh(dev); + switch (mode) { case DRM_MODE_DPMS_ON: case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: + if (psb_intel_crtc->active) + return; + + psb_intel_crtc->active = true; + /* Enable the DPLL */ temp = REG_READ(dpll_reg); if ((temp & DPLL_VCO_ENABLE) == 0) { @@ -611,13 +843,26 @@ static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode) if ((temp & PIPEACONF_ENABLE) == 0) REG_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE); - psb_intel_crtc_load_lut(crtc); + temp = REG_READ(pipestat_reg); + temp &= ~(0xFFFF); + temp |= PIPE_FIFO_UNDERRUN; + REG_WRITE(pipestat_reg, temp); + REG_READ(pipestat_reg); + + cdv_intel_update_watermark(dev, crtc); + cdv_intel_crtc_load_lut(crtc); /* Give the overlay scaler a chance to enable * if it's on this pipe */ /* psb_intel_crtc_dpms_video(crtc, true); TODO */ + psb_intel_crtc->crtc_enable = true; break; case DRM_MODE_DPMS_OFF: + if (!psb_intel_crtc->active) + return; + + psb_intel_crtc->active = false; + /* Give the overlay scaler a chance to disable * if it's on this pipe */ /* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */ @@ -627,6 +872,7 @@ static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode) /* Jim Bish - changed pipe/plane here as well. */ + drm_vblank_off(dev, pipe); /* Wait for vblank for the disable to take effect */ cdv_intel_wait_for_vblank(dev); @@ -660,6 +906,8 @@ static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode) /* Wait for the clocks to turn off. */ udelay(150); + cdv_intel_update_watermark(dev, crtc); + psb_intel_crtc->crtc_enable = false; break; } /*Set FIFO Watermarks*/ @@ -709,6 +957,7 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc, struct drm_framebuffer *old_fb) { struct drm_device *dev = crtc->dev; + struct drm_psb_private *dev_priv = dev->dev_private; struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc); int pipe = psb_intel_crtc->pipe; int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; @@ -757,13 +1006,18 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc, } } - refclk = 96000; - - /* Hack selection about ref clk for CRT */ - /* Select 27MHz as the reference clk for HDMI */ - if (is_crt || is_hdmi) + if (dev_priv->dplla_96mhz) + /* low-end sku, 96/100 mhz */ + refclk = 96000; + else + /* high-end sku, 27/100 mhz */ refclk = 27000; + if (is_lvds && dev_priv->lvds_use_ssc) { + refclk = dev_priv->lvds_ssc_freq * 1000; + DRM_DEBUG_KMS("Use SSC reference clock %d Mhz\n", dev_priv->lvds_ssc_freq); + } + drm_mode_debug_printmodeline(adjusted_mode); ok = cdv_intel_find_best_PLL(crtc, adjusted_mode->clock, refclk, @@ -779,14 +1033,13 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc, /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ dpll |= 3; } - dpll |= PLL_REF_INPUT_DREFCLK; +/* dpll |= PLL_REF_INPUT_DREFCLK; */ dpll |= DPLL_SYNCLOCK_ENABLE; - dpll |= DPLL_VGA_MODE_DIS; - if (is_lvds) +/* if (is_lvds) dpll |= DPLLB_MODE_LVDS; else - dpll |= DPLLB_MODE_DAC_SERIAL; + dpll |= DPLLB_MODE_DAC_SERIAL; */ /* dpll |= (2 << 11); */ /* setup pipeconf */ @@ -806,7 +1059,7 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc, REG_WRITE(dpll_reg, dpll | DPLL_VGA_MODE_DIS | DPLL_SYNCLOCK_ENABLE); REG_READ(dpll_reg); - cdv_dpll_set_clock_cdv(dev, crtc, &clock); + cdv_dpll_set_clock_cdv(dev, crtc, &clock, is_lvds); udelay(150); @@ -903,58 +1156,6 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc, return 0; } -/** Loads the palette/gamma unit for the CRTC with the prepared values */ -static void cdv_intel_crtc_load_lut(struct drm_crtc *crtc) -{ - struct drm_device *dev = crtc->dev; - struct drm_psb_private *dev_priv = - (struct drm_psb_private *)dev->dev_private; - struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc); - int palreg = PALETTE_A; - int i; - - /* The clocks have to be on to load the palette. */ - if (!crtc->enabled) - return; - - switch (psb_intel_crtc->pipe) { - case 0: - break; - case 1: - palreg = PALETTE_B; - break; - case 2: - palreg = PALETTE_C; - break; - default: - dev_err(dev->dev, "Illegal Pipe Number.\n"); - return; - } - - if (gma_power_begin(dev, false)) { - for (i = 0; i < 256; i++) { - REG_WRITE(palreg + 4 * i, - ((psb_intel_crtc->lut_r[i] + - psb_intel_crtc->lut_adj[i]) << 16) | - ((psb_intel_crtc->lut_g[i] + - psb_intel_crtc->lut_adj[i]) << 8) | - (psb_intel_crtc->lut_b[i] + - psb_intel_crtc->lut_adj[i])); - } - gma_power_end(dev); - } else { - for (i = 0; i < 256; i++) { - dev_priv->regs.psb.save_palette_a[i] = - ((psb_intel_crtc->lut_r[i] + - psb_intel_crtc->lut_adj[i]) << 16) | - ((psb_intel_crtc->lut_g[i] + - psb_intel_crtc->lut_adj[i]) << 8) | - (psb_intel_crtc->lut_b[i] + - psb_intel_crtc->lut_adj[i]); - } - - } -} /** * Save HW states of giving crtc diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h index f40535e..81852b4 100644 --- a/drivers/gpu/drm/gma500/psb_intel_drv.h +++ b/drivers/gpu/drm/gma500/psb_intel_drv.h @@ -193,6 +193,9 @@ struct psb_intel_crtc { /*crtc mode setting flags*/ u32 mode_flags; + bool active; + bool crtc_enable; + /* Saved Crtc HW states */ struct psb_intel_crtc_state *crtc_state; }; diff --git a/drivers/gpu/drm/gma500/psb_intel_reg.h b/drivers/gpu/drm/gma500/psb_intel_reg.h index e89d3a2..46792fc 100644 --- a/drivers/gpu/drm/gma500/psb_intel_reg.h +++ b/drivers/gpu/drm/gma500/psb_intel_reg.h @@ -505,6 +505,7 @@ #define PIPE_VSYNC_ENABL (1UL << 25) #define PIPE_HDMI_AUDIO_UNDERRUN (1UL << 26) #define PIPE_HDMI_AUDIO_BUFFER_DONE (1UL << 27) +#define PIPE_FIFO_UNDERRUN (1UL << 31) #define PIPE_HDMI_AUDIO_INT_MASK (PIPE_HDMI_AUDIO_UNDERRUN | \ PIPE_HDMI_AUDIO_BUFFER_DONE) #define PIPE_EVENT_MASK ((1 << 29)|(1 << 28)|(1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)|(1 << 22)|(1 << 21)|(1 << 20)|(1 << 16)) @@ -569,12 +570,27 @@ struct dpst_guardband { #define PIPE_PIXEL_MASK 0x00ffffff #define PIPE_PIXEL_SHIFT 0 +#define FW_BLC_SELF 0x20e0 +#define FW_BLC_SELF_EN (1<<15) + #define DSPARB 0x70030 #define DSPFW1 0x70034 +#define DSP_FIFO_SR_WM_MASK 0xFF800000 +#define DSP_FIFO_SR_WM_SHIFT 23 +#define CURSOR_B_FIFO_WM_MASK 0x003F0000 +#define CURSOR_B_FIFO_WM_SHIFT 16 #define DSPFW2 0x70038 +#define CURSOR_A_FIFO_WM_MASK 0x3F00 +#define CURSOR_A_FIFO_WM_SHIFT 8 +#define DSP_PLANE_C_FIFO_WM_MASK 0x7F +#define DSP_PLANE_C_FIFO_WM_SHIFT 0 #define DSPFW3 0x7003c #define DSPFW4 0x70050 #define DSPFW5 0x70054 +#define DSP_PLANE_B_FIFO_WM1_SHIFT 24 +#define DSP_PLANE_A_FIFO_WM1_SHIFT 16 +#define CURSOR_B_FIFO_WM1_SHIFT 8 +#define CURSOR_FIFO_SR_WM1_SHIFT 0 #define DSPFW6 0x70058 #define DSPCHICKENBIT 0x70400 #define DSPACNTR 0x70180 @@ -1290,6 +1306,15 @@ No status bits are changed. #define SB_N_CB_TUNE_MASK PSB_MASK(25, 24) #define SB_N_CB_TUNE_SHIFT 24 +/* the bit 14:13 is used to select between the different reference clock for Pipe A/B */ +#define SB_REF_DPLLA 0x8010 +#define SB_REF_DPLLB 0x8030 +#define REF_CLK_MASK (0x3 << 13) +#define REF_CLK_CORE (0 << 13) +#define REF_CLK_DPLL (1 << 13) +#define REF_CLK_DPLLA (2 << 13) +/* For the DPLL B, it will use the reference clk from DPLL A when using (2 << 13) */ + #define _SB_REF_A 0x8018 #define _SB_REF_B 0x8038 #define SB_REF_SFR(pipe) _PIPE(pipe, _SB_REF_A, _SB_REF_B) |