diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 1239 |
1 files changed, 1081 insertions, 158 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 748ed50c55ca..3c14240cc002 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -24,6 +24,8 @@ * Eric Anholt <eric@anholt.net> */ +#include <linux/module.h> +#include <linux/input.h> #include <linux/i2c.h> #include <linux/kernel.h> #include "drmP.h" @@ -38,6 +40,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type); static void intel_update_watermarks(struct drm_device *dev); +static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule); typedef struct { /* given values */ @@ -67,6 +70,8 @@ struct intel_limit { intel_p2_t p2; bool (* find_pll)(const intel_limit_t *, struct drm_crtc *, int, int, intel_clock_t *); + bool (* find_reduced_pll)(const intel_limit_t *, struct drm_crtc *, + int, int, intel_clock_t *); }; #define I8XX_DOT_MIN 25000 @@ -261,6 +266,9 @@ static bool intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, int target, int refclk, intel_clock_t *best_clock); static bool +intel_find_best_reduced_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, + int target, int refclk, intel_clock_t *best_clock); +static bool intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, int target, int refclk, intel_clock_t *best_clock); static bool @@ -286,6 +294,7 @@ static const intel_limit_t intel_limits_i8xx_dvo = { .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; static const intel_limit_t intel_limits_i8xx_lvds = { @@ -300,6 +309,7 @@ static const intel_limit_t intel_limits_i8xx_lvds = { .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; static const intel_limit_t intel_limits_i9xx_sdvo = { @@ -314,6 +324,7 @@ static const intel_limit_t intel_limits_i9xx_sdvo = { .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; static const intel_limit_t intel_limits_i9xx_lvds = { @@ -331,6 +342,7 @@ static const intel_limit_t intel_limits_i9xx_lvds = { .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; /* below parameter and function is for G4X Chipset Family*/ @@ -348,6 +360,7 @@ static const intel_limit_t intel_limits_g4x_sdvo = { .p2_fast = G4X_P2_SDVO_FAST }, .find_pll = intel_g4x_find_best_PLL, + .find_reduced_pll = intel_g4x_find_best_PLL, }; static const intel_limit_t intel_limits_g4x_hdmi = { @@ -364,6 +377,7 @@ static const intel_limit_t intel_limits_g4x_hdmi = { .p2_fast = G4X_P2_HDMI_DAC_FAST }, .find_pll = intel_g4x_find_best_PLL, + .find_reduced_pll = intel_g4x_find_best_PLL, }; static const intel_limit_t intel_limits_g4x_single_channel_lvds = { @@ -388,6 +402,7 @@ static const intel_limit_t intel_limits_g4x_single_channel_lvds = { .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST }, .find_pll = intel_g4x_find_best_PLL, + .find_reduced_pll = intel_g4x_find_best_PLL, }; static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { @@ -412,6 +427,7 @@ static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST }, .find_pll = intel_g4x_find_best_PLL, + .find_reduced_pll = intel_g4x_find_best_PLL, }; static const intel_limit_t intel_limits_g4x_display_port = { @@ -449,6 +465,7 @@ static const intel_limit_t intel_limits_igd_sdvo = { .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; static const intel_limit_t intel_limits_igd_lvds = { @@ -464,6 +481,7 @@ static const intel_limit_t intel_limits_igd_lvds = { .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, .find_pll = intel_find_best_PLL, + .find_reduced_pll = intel_find_best_reduced_PLL, }; static const intel_limit_t intel_limits_igdng_sdvo = { @@ -688,15 +706,16 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, memset (best_clock, 0, sizeof (*best_clock)); - for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { - for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max; clock.m2++) { - /* m1 is always 0 in IGD */ - if (clock.m2 >= clock.m1 && !IS_IGD(dev)) - break; - for (clock.n = limit->n.min; clock.n <= limit->n.max; - clock.n++) { - for (clock.p1 = limit->p1.min; - clock.p1 <= limit->p1.max; clock.p1++) { + for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { + for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; + clock.m1++) { + for (clock.m2 = limit->m2.min; + clock.m2 <= limit->m2.max; clock.m2++) { + /* m1 is always 0 in IGD */ + if (clock.m2 >= clock.m1 && !IS_IGD(dev)) + break; + for (clock.n = limit->n.min; + clock.n <= limit->n.max; clock.n++) { int this_err; intel_clock(dev, refclk, &clock); @@ -717,6 +736,46 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, return (err != target); } + +static bool +intel_find_best_reduced_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, + int target, int refclk, intel_clock_t *best_clock) + +{ + struct drm_device *dev = crtc->dev; + intel_clock_t clock; + int err = target; + bool found = false; + + memcpy(&clock, best_clock, sizeof(intel_clock_t)); + + for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) { + for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max; clock.m2++) { + /* m1 is always 0 in IGD */ + if (clock.m2 >= clock.m1 && !IS_IGD(dev)) + break; + for (clock.n = limit->n.min; clock.n <= limit->n.max; + clock.n++) { + int this_err; + + intel_clock(dev, refclk, &clock); + + if (!intel_PLL_is_valid(crtc, &clock)) + continue; + + this_err = abs(clock.dot - target); + if (this_err < err) { + *best_clock = clock; + err = this_err; + found = true; + } + } + } + } + + return found; +} + static bool intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, int target, int refclk, intel_clock_t *best_clock) @@ -747,7 +806,7 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, max_n = limit->n.max; /* based on hardware requriment prefer smaller n to precision */ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { - /* based on hardware requirment prefere larger m1,m2, p1 */ + /* based on hardware requirment prefere larger m1,m2 */ for (clock.m1 = limit->m1.max; clock.m1 >= limit->m1.min; clock.m1--) { for (clock.m2 = limit->m2.max; @@ -818,7 +877,7 @@ intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, refclk, best_clock); if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { - if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == + if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) clock.p2 = limit->p2.p2_fast; else @@ -832,15 +891,14 @@ intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, memset(best_clock, 0, sizeof(*best_clock)); max_n = limit->n.max; - /* based on hardware requriment prefer smaller n to precision */ - for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { - /* based on hardware requirment prefere larger m1,m2, p1 */ - for (clock.m1 = limit->m1.max; - clock.m1 >= limit->m1.min; clock.m1--) { - for (clock.m2 = limit->m2.max; - clock.m2 >= limit->m2.min; clock.m2--) { - for (clock.p1 = limit->p1.max; - clock.p1 >= limit->p1.min; clock.p1--) { + for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) { + /* based on hardware requriment prefer smaller n to precision */ + for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { + /* based on hardware requirment prefere larger m1,m2 */ + for (clock.m1 = limit->m1.max; + clock.m1 >= limit->m1.min; clock.m1--) { + for (clock.m2 = limit->m2.max; + clock.m2 >= limit->m2.min; clock.m2--) { int this_err; intel_clock(dev, refclk, &clock); @@ -896,6 +954,241 @@ intel_wait_for_vblank(struct drm_device *dev) mdelay(20); } +/* Parameters have changed, update FBC info */ +static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_framebuffer *fb = crtc->fb; + struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); + struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int plane, i; + u32 fbc_ctl, fbc_ctl2; + + dev_priv->cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE; + + if (fb->pitch < dev_priv->cfb_pitch) + dev_priv->cfb_pitch = fb->pitch; + + /* FBC_CTL wants 64B units */ + dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; + dev_priv->cfb_fence = obj_priv->fence_reg; + dev_priv->cfb_plane = intel_crtc->plane; + plane = dev_priv->cfb_plane == 0 ? FBC_CTL_PLANEA : FBC_CTL_PLANEB; + + /* Clear old tags */ + for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) + I915_WRITE(FBC_TAG + (i * 4), 0); + + /* Set it up... */ + fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | plane; + if (obj_priv->tiling_mode != I915_TILING_NONE) + fbc_ctl2 |= FBC_CTL_CPU_FENCE; + I915_WRITE(FBC_CONTROL2, fbc_ctl2); + I915_WRITE(FBC_FENCE_OFF, crtc->y); + + /* enable it... */ + fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC; + fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT; + fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT; + if (obj_priv->tiling_mode != I915_TILING_NONE) + fbc_ctl |= dev_priv->cfb_fence; + I915_WRITE(FBC_CONTROL, fbc_ctl); + + DRM_DEBUG("enabled FBC, pitch %ld, yoff %d, plane %d, ", + dev_priv->cfb_pitch, crtc->y, dev_priv->cfb_plane); +} + +void i8xx_disable_fbc(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 fbc_ctl; + + if (!I915_HAS_FBC(dev)) + return; + + /* Disable compression */ + fbc_ctl = I915_READ(FBC_CONTROL); + fbc_ctl &= ~FBC_CTL_EN; + I915_WRITE(FBC_CONTROL, fbc_ctl); + + /* Wait for compressing bit to clear */ + while (I915_READ(FBC_STATUS) & FBC_STAT_COMPRESSING) + ; /* nothing */ + + intel_wait_for_vblank(dev); + + DRM_DEBUG("disabled FBC\n"); +} + +static bool i8xx_fbc_enabled(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + + return I915_READ(FBC_CONTROL) & FBC_CTL_EN; +} + +static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_framebuffer *fb = crtc->fb; + struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); + struct drm_i915_gem_object *obj_priv = intel_fb->obj->driver_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int plane = (intel_crtc->plane == 0 ? DPFC_CTL_PLANEA : + DPFC_CTL_PLANEB); + unsigned long stall_watermark = 200; + u32 dpfc_ctl; + + dev_priv->cfb_pitch = (dev_priv->cfb_pitch / 64) - 1; + dev_priv->cfb_fence = obj_priv->fence_reg; + dev_priv->cfb_plane = intel_crtc->plane; + + dpfc_ctl = plane | DPFC_SR_EN | DPFC_CTL_LIMIT_1X; + if (obj_priv->tiling_mode != I915_TILING_NONE) { + dpfc_ctl |= DPFC_CTL_FENCE_EN | dev_priv->cfb_fence; + I915_WRITE(DPFC_CHICKEN, DPFC_HT_MODIFY); + } else { + I915_WRITE(DPFC_CHICKEN, ~DPFC_HT_MODIFY); + } + + I915_WRITE(DPFC_CONTROL, dpfc_ctl); + I915_WRITE(DPFC_RECOMP_CTL, DPFC_RECOMP_STALL_EN | + (stall_watermark << DPFC_RECOMP_STALL_WM_SHIFT) | + (interval << DPFC_RECOMP_TIMER_COUNT_SHIFT)); + I915_WRITE(DPFC_FENCE_YOFF, crtc->y); + + /* enable it... */ + I915_WRITE(DPFC_CONTROL, I915_READ(DPFC_CONTROL) | DPFC_CTL_EN); + + DRM_DEBUG("enabled fbc on plane %d\n", intel_crtc->plane); +} + +void g4x_disable_fbc(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 dpfc_ctl; + + /* Disable compression */ + dpfc_ctl = I915_READ(DPFC_CONTROL); + dpfc_ctl &= ~DPFC_CTL_EN; + I915_WRITE(DPFC_CONTROL, dpfc_ctl); + intel_wait_for_vblank(dev); + + DRM_DEBUG("disabled FBC\n"); +} + +static bool g4x_fbc_enabled(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + + return I915_READ(DPFC_CONTROL) & DPFC_CTL_EN; +} + +/** + * intel_update_fbc - enable/disable FBC as needed + * @crtc: CRTC to point the compressor at + * @mode: mode in use + * + * Set up the framebuffer compression hardware at mode set time. We + * enable it if possible: + * - plane A only (on pre-965) + * - no pixel mulitply/line duplication + * - no alpha buffer discard + * - no dual wide + * - framebuffer <= 2048 in width, 1536 in height + * + * We can't assume that any compression will take place (worst case), + * so the compressed buffer has to be the same size as the uncompressed + * one. It also must reside (along with the line length buffer) in + * stolen memory. + * + * We need to enable/disable FBC on a global basis. + */ +static void intel_update_fbc(struct drm_crtc *crtc, + struct drm_display_mode *mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_framebuffer *fb = crtc->fb; + struct intel_framebuffer *intel_fb; + struct drm_i915_gem_object *obj_priv; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int plane = intel_crtc->plane; + + if (!i915_powersave) + return; + + if (!dev_priv->display.fbc_enabled || + !dev_priv->display.enable_fbc || + !dev_priv->display.disable_fbc) + return; + + if (!crtc->fb) + return; + + intel_fb = to_intel_framebuffer(fb); + obj_priv = intel_fb->obj->driver_private; + + /* + * If FBC is already on, we just have to verify that we can + * keep it that way... + * Need to disable if: + * - changing FBC params (stride, fence, mode) + * - new fb is too large to fit in compressed buffer + * - going to an unsupported config (interlace, pixel multiply, etc.) + */ + if (intel_fb->obj->size > dev_priv->cfb_size) { + DRM_DEBUG("framebuffer too large, disabling compression\n"); + goto out_disable; + } + if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || + (mode->flags & DRM_MODE_FLAG_DBLSCAN)) { + DRM_DEBUG("mode incompatible with compression, disabling\n"); + goto out_disable; + } + if ((mode->hdisplay > 2048) || + (mode->vdisplay > 1536)) { + DRM_DEBUG("mode too large for compression, disabling\n"); + goto out_disable; + } + if ((IS_I915GM(dev) || IS_I945GM(dev)) && plane != 0) { + DRM_DEBUG("plane not 0, disabling compression\n"); + goto out_disable; + } + if (obj_priv->tiling_mode != I915_TILING_X) { + DRM_DEBUG("framebuffer not tiled, disabling compression\n"); + goto out_disable; + } + + if (dev_priv->display.fbc_enabled(crtc)) { + /* We can re-enable it in this case, but need to update pitch */ + if (fb->pitch > dev_priv->cfb_pitch) + dev_priv->display.disable_fbc(dev); + if (obj_priv->fence_reg != dev_priv->cfb_fence) + dev_priv->display.disable_fbc(dev); + if (plane != dev_priv->cfb_plane) + dev_priv->display.disable_fbc(dev); + } + + if (!dev_priv->display.fbc_enabled(crtc)) { + /* Now try to turn it back on if possible */ + dev_priv->display.enable_fbc(crtc, 500); + } + + return; + +out_disable: + DRM_DEBUG("unsupported config, disabling FBC\n"); + /* Multiple disables should be harmless */ + if (dev_priv->display.fbc_enabled(crtc)) + dev_priv->display.disable_fbc(dev); +} + static int intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) @@ -908,12 +1201,13 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_i915_gem_object *obj_priv; struct drm_gem_object *obj; int pipe = intel_crtc->pipe; + int plane = intel_crtc->plane; unsigned long Start, Offset; - int dspbase = (pipe == 0 ? DSPAADDR : DSPBADDR); - int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF); - int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE; - int dsptileoff = (pipe == 0 ? DSPATILEOFF : DSPBTILEOFF); - int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; + int dspbase = (plane == 0 ? DSPAADDR : DSPBADDR); + int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF); + int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE; + int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF); + int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; u32 dspcntr, alignment; int ret; @@ -923,12 +1217,12 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, return 0; } - switch (pipe) { + switch (plane) { case 0: case 1: break; default: - DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); + DRM_ERROR("Can't update plane %d in SAREA\n", plane); return -EINVAL; } @@ -1008,6 +1302,10 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, dspcntr &= ~DISPPLANE_TILED; } + if (IS_IGDNG(dev)) + /* must disable */ + dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE; + I915_WRITE(dspcntr_reg, dspcntr); Start = obj_priv->gtt_offset; @@ -1026,12 +1324,18 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, I915_READ(dspbase); } + if ((IS_I965G(dev) || plane == 0)) + intel_update_fbc(crtc, &crtc->mode); + intel_wait_for_vblank(dev); if (old_fb) { intel_fb = to_intel_framebuffer(old_fb); + obj_priv = intel_fb->obj->driver_private; i915_gem_object_unpin(intel_fb->obj); } + intel_increase_pllclock(crtc, true); + mutex_unlock(&dev->struct_mutex); if (!dev->primary->master) @@ -1154,6 +1458,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode) int transconf_reg = (pipe == 0) ? TRANSACONF : TRANSBCONF; int pf_ctl_reg = (pipe == 0) ? PFA_CTL_1 : PFB_CTL_1; int pf_win_size = (pipe == 0) ? PFA_WIN_SZ : PFB_WIN_SZ; + int pf_win_pos = (pipe == 0) ? PFA_WIN_POS : PFB_WIN_POS; int cpu_htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; int cpu_hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; int cpu_hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B; @@ -1205,6 +1510,19 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode) } } + /* Enable panel fitting for LVDS */ + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { + temp = I915_READ(pf_ctl_reg); + I915_WRITE(pf_ctl_reg, temp | PF_ENABLE); + + /* currently full aspect */ + I915_WRITE(pf_win_pos, 0); + + I915_WRITE(pf_win_size, + (dev_priv->panel_fixed_mode->hdisplay << 16) | + (dev_priv->panel_fixed_mode->vdisplay)); + } + /* Enable CPU pipe */ temp = I915_READ(pipeconf_reg); if ((temp & PIPEACONF_ENABLE) == 0) { @@ -1469,9 +1787,10 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; + int plane = intel_crtc->plane; int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; - int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; - int dspbase_reg = (pipe == 0) ? DSPAADDR : DSPBADDR; + int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; + int dspbase_reg = (plane == 0) ? DSPAADDR : DSPBADDR; int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; u32 temp; @@ -1514,6 +1833,9 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) intel_crtc_load_lut(crtc); + if ((IS_I965G(dev) || plane == 0)) + intel_update_fbc(crtc, &crtc->mode); + /* Give the overlay scaler a chance to enable if it's on this pipe */ //intel_crtc_dpms_video(crtc, true); TODO intel_update_watermarks(dev); @@ -1523,6 +1845,10 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) /* Give the overlay scaler a chance to disable if it's on this pipe */ //intel_crtc_dpms_video(crtc, FALSE); TODO + if (dev_priv->cfb_plane == plane && + dev_priv->display.disable_fbc) + dev_priv->display.disable_fbc(dev); + /* Disable the VGA plane that we never use */ i915_disable_vga(dev); @@ -1571,15 +1897,15 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) { struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_master_private *master_priv; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; bool enabled; - if (IS_IGDNG(dev)) - igdng_crtc_dpms(crtc, mode); - else - i9xx_crtc_dpms(crtc, mode); + dev_priv->display.dpms(crtc, mode); + + intel_crtc->dpms_mode = mode; if (!dev->primary->master) return; @@ -1603,8 +1929,6 @@ static void intel_crtc_dpms(struct drm_crtc *crtc, int mode) DRM_ERROR("Can't update pipe %d in SAREA\n", pipe); break; } - - intel_crtc->dpms_mode = mode; } static void intel_crtc_prepare (struct drm_crtc *crtc) @@ -1646,56 +1970,68 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, return true; } +static int i945_get_display_clock_speed(struct drm_device *dev) +{ + return 400000; +} -/** Returns the core display clock speed for i830 - i945 */ -static int intel_get_core_clock_speed(struct drm_device *dev) +static int i915_get_display_clock_speed(struct drm_device *dev) { + return 333000; +} - /* Core clock values taken from the published datasheets. - * The 830 may go up to 166 Mhz, which we should check. - */ - if (IS_I945G(dev)) - return 400000; - else if (IS_I915G(dev)) - return 333000; - else if (IS_I945GM(dev) || IS_845G(dev) || IS_IGDGM(dev)) - return 200000; - else if (IS_I915GM(dev)) { - u16 gcfgc = 0; +static int i9xx_misc_get_display_clock_speed(struct drm_device *dev) +{ + return 200000; +} - pci_read_config_word(dev->pdev, GCFGC, &gcfgc); +static int i915gm_get_display_clock_speed(struct drm_device *dev) +{ + u16 gcfgc = 0; - if (gcfgc & GC_LOW_FREQUENCY_ENABLE) - return 133000; - else { - switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { - case GC_DISPLAY_CLOCK_333_MHZ: - return 333000; - default: - case GC_DISPLAY_CLOCK_190_200_MHZ: - return 190000; - } - } - } else if (IS_I865G(dev)) - return 266000; - else if (IS_I855(dev)) { - u16 hpllcc = 0; - /* Assume that the hardware is in the high speed state. This - * should be the default. - */ - switch (hpllcc & GC_CLOCK_CONTROL_MASK) { - case GC_CLOCK_133_200: - case GC_CLOCK_100_200: - return 200000; - case GC_CLOCK_166_250: - return 250000; - case GC_CLOCK_100_133: - return 133000; + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + if (gcfgc & GC_LOW_FREQUENCY_ENABLE) + return 133000; + else { + switch (gcfgc & GC_DISPLAY_CLOCK_MASK) { + case GC_DISPLAY_CLOCK_333_MHZ: + return 333000; + default: + case GC_DISPLAY_CLOCK_190_200_MHZ: + return 190000; } - } else /* 852, 830 */ + } +} + +static int i865_get_display_clock_speed(struct drm_device *dev) +{ + return 266000; +} + +static int i855_get_display_clock_speed(struct drm_device *dev) +{ + u16 hpllcc = 0; + /* Assume that the hardware is in the high speed state. This + * should be the default. + */ + switch (hpllcc & GC_CLOCK_CONTROL_MASK) { + case GC_CLOCK_133_200: + case GC_CLOCK_100_200: + return 200000; + case GC_CLOCK_166_250: + return 250000; + case GC_CLOCK_100_133: return 133000; + } - return 0; /* Silence gcc warning */ + /* Shouldn't happen */ + return 0; +} + +static int i830_get_display_clock_speed(struct drm_device *dev) +{ + return 133000; } /** @@ -1858,7 +2194,14 @@ static unsigned long intel_calculate_wm(unsigned long clock_in_khz, { long entries_required, wm_size; - entries_required = (clock_in_khz * pixel_size * latency_ns) / 1000000; + /* + * Note: we need to make sure we don't overflow for various clock & + * latency values. + * clocks go from a few thousand to several hundred thousand. + * latency is usually a few thousand + */ + entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) / + 1000; entries_required /= wm->cacheline_size; DRM_DEBUG("FIFO entries required for mode: %d\n", entries_required); @@ -1923,14 +2266,13 @@ static struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, int fsb, for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { latency = &cxsr_latency_table[i]; if (is_desktop == latency->is_desktop && - fsb == latency->fsb_freq && mem == latency->mem_freq) - break; + fsb == latency->fsb_freq && mem == latency->mem_freq) + return latency; } - if (i >= ARRAY_SIZE(cxsr_latency_table)) { - DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); - return NULL; - } - return latency; + + DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); + + return NULL; } static void igd_disable_cxsr(struct drm_device *dev) @@ -2021,32 +2363,36 @@ static void igd_enable_cxsr(struct drm_device *dev, unsigned long clock, */ const static int latency_ns = 5000; -static int intel_get_fifo_size(struct drm_device *dev, int plane) +static int i9xx_get_fifo_size(struct drm_device *dev, int plane) { struct drm_i915_private *dev_priv = dev->dev_private; uint32_t dsparb = I915_READ(DSPARB); int size; - if (IS_I9XX(dev)) { - if (plane == 0) - size = dsparb & 0x7f; - else - size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - - (dsparb & 0x7f); - } else if (IS_I85X(dev)) { - if (plane == 0) - size = dsparb & 0x1ff; - else - size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - - (dsparb & 0x1ff); - size >>= 1; /* Convert to cachelines */ - } else if (IS_845G(dev)) { + if (plane == 0) size = dsparb & 0x7f; - size >>= 2; /* Convert to cachelines */ - } else { - size = dsparb & 0x7f; - size >>= 1; /* Convert to cachelines */ - } + else + size = ((dsparb >> DSPARB_CSTART_SHIFT) & 0x7f) - + (dsparb & 0x7f); + + DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A", + size); + + return size; +} + +static int i85x_get_fifo_size(struct drm_device *dev, int plane) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dsparb = I915_READ(DSPARB); + int size; + + if (plane == 0) + size = dsparb & 0x1ff; + else + size = ((dsparb >> DSPARB_BEND_SHIFT) & 0x1ff) - + (dsparb & 0x1ff); + size >>= 1; /* Convert to cachelines */ DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A", size); @@ -2054,7 +2400,51 @@ static int intel_get_fifo_size(struct drm_device *dev, int plane) return size; } -static void i965_update_wm(struct drm_device *dev) +static int i845_get_fifo_size(struct drm_device *dev, int plane) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dsparb = I915_READ(DSPARB); + int size; + + size = dsparb & 0x7f; + size >>= 2; /* Convert to cachelines */ + + DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A", + size); + + return size; +} + +static int i830_get_fifo_size(struct drm_device *dev, int plane) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dsparb = I915_READ(DSPARB); + int size; + + size = dsparb & 0x7f; + size >>= 1; /* Convert to cachelines */ + + DRM_DEBUG("FIFO size - (0x%08x) %s: %d\n", dsparb, plane ? "B" : "A", + size); + + return size; +} + +static void g4x_update_wm(struct drm_device *dev, int unused, int unused2, + int unused3, int unused4) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 fw_blc_self = I915_READ(FW_BLC_SELF); + + if (i915_powersave) + fw_blc_self |= FW_BLC_SELF_EN; + else + fw_blc_self &= ~FW_BLC_SELF_EN; + I915_WRITE(FW_BLC_SELF, fw_blc_self); +} + +static void i965_update_wm(struct drm_device *dev, int unused, int unused2, + int unused3, int unused4) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -2090,8 +2480,8 @@ static void i9xx_update_wm(struct drm_device *dev, int planea_clock, cacheline_size = planea_params.cacheline_size; /* Update per-plane FIFO sizes */ - planea_params.fifo_size = intel_get_fifo_size(dev, 0); - planeb_params.fifo_size = intel_get_fifo_size(dev, 1); + planea_params.fifo_size = dev_priv->display.get_fifo_size(dev, 0); + planeb_params.fifo_size = dev_priv->display.get_fifo_size(dev, 1); planea_wm = intel_calculate_wm(planea_clock, &planea_params, pixel_size, latency_ns); @@ -2105,7 +2495,8 @@ static void i9xx_update_wm(struct drm_device *dev, int planea_clock, cwm = 2; /* Calc sr entries for one plane configs */ - if (sr_hdisplay && (!planea_clock || !planeb_clock)) { + if (HAS_FW_BLC(dev) && sr_hdisplay && + (!planea_clock || !planeb_clock)) { /* self-refresh has much higher latency */ const static int sr_latency_ns = 6000; @@ -2120,8 +2511,7 @@ static void i9xx_update_wm(struct drm_device *dev, int planea_clock, srwm = total_size - sr_entries; if (srwm < 0) srwm = 1; - if (IS_I9XX(dev)) - I915_WRITE(FW_BLC_SELF, (srwm & 0x3f)); + I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN | (srwm & 0x3f)); } DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", @@ -2138,14 +2528,14 @@ static void i9xx_update_wm(struct drm_device *dev, int planea_clock, I915_WRITE(FW_BLC2, fwater_hi); } -static void i830_update_wm(struct drm_device *dev, int planea_clock, - int pixel_size) +static void i830_update_wm(struct drm_device *dev, int planea_clock, int unused, + int unused2, int pixel_size) { struct drm_i915_private *dev_priv = dev->dev_private; uint32_t fwater_lo = I915_READ(FW_BLC) & ~0xfff; int planea_wm; - i830_wm_info.fifo_size = intel_get_fifo_size(dev, 0); + i830_wm_info.fifo_size = dev_priv->display.get_fifo_size(dev, 0); planea_wm = intel_calculate_wm(planea_clock, &i830_wm_info, pixel_size, latency_ns); @@ -2189,15 +2579,13 @@ static void i830_update_wm(struct drm_device *dev, int planea_clock, */ static void intel_update_watermarks(struct drm_device *dev) { + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_crtc *crtc; struct intel_crtc *intel_crtc; int sr_hdisplay = 0; unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; int enabled = 0, pixel_size = 0; - if (DSPARB_HWCONTROL(dev)) - return; - /* Get the clock config from both planes */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { intel_crtc = to_intel_crtc(crtc); @@ -2230,13 +2618,8 @@ static void intel_update_watermarks(struct drm_device *dev) else if (IS_IGD(dev)) igd_disable_cxsr(dev); - if (IS_I965G(dev)) - i965_update_wm(dev); - else if (IS_I9XX(dev) || IS_MOBILE(dev)) - i9xx_update_wm(dev, planea_clock, planeb_clock, sr_hdisplay, - pixel_size); - else - i830_update_wm(dev, planea_clock, pixel_size); + dev_priv->display.update_wm(dev, planea_clock, planeb_clock, + sr_hdisplay, pixel_size); } static int intel_crtc_mode_set(struct drm_crtc *crtc, @@ -2249,10 +2632,11 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; + int plane = intel_crtc->plane; int fp_reg = (pipe == 0) ? FPA0 : FPB0; int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; int dpll_md_reg = (intel_crtc->pipe == 0) ? DPLL_A_MD : DPLL_B_MD; - int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR; + int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B; int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B; @@ -2260,13 +2644,13 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B; int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B; int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B; - int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE; - int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS; + int dspsize_reg = (plane == 0) ? DSPASIZE : DSPBSIZE; + int dsppos_reg = (plane == 0) ? DSPAPOS : DSPBPOS; int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC; int refclk, num_outputs = 0; - intel_clock_t clock; - u32 dpll = 0, fp = 0, dspcntr, pipeconf; - bool ok, is_sdvo = false, is_dvo = false; + intel_clock_t clock, reduced_clock; + u32 dpll = 0, fp = 0, fp2 = 0, dspcntr, pipeconf; + bool ok, has_reduced_clock = false, is_sdvo = false, is_dvo = false; bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; bool is_edp = false; struct drm_mode_config *mode_config = &dev->mode_config; @@ -2349,6 +2733,14 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, return -EINVAL; } + if (limit->find_reduced_pll && dev_priv->lvds_downclock_avail) { + memcpy(&reduced_clock, &clock, sizeof(intel_clock_t)); + has_reduced_clock = limit->find_reduced_pll(limit, crtc, + (adjusted_mode->clock*3/4), + refclk, + &reduced_clock); + } + /* SDVO TV has fixed PLL values depend on its clock range, this mirrors vbios setting. */ if (is_sdvo && is_tv) { @@ -2394,10 +2786,17 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, link_bw, &m_n); } - if (IS_IGD(dev)) + if (IS_IGD(dev)) { fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2; - else + if (has_reduced_clock) + fp2 = (1 << reduced_clock.n) << 16 | + reduced_clock.m1 << 8 | reduced_clock.m2; + } else { fp = clock.n << 16 | clock.m1 << 8 | clock.m2; + if (has_reduced_clock) + fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | + reduced_clock.m2; + } if (!IS_IGDNG(dev)) dpll = DPLL_VGA_MODE_DIS; @@ -2426,6 +2825,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* also FPA1 */ if (IS_IGDNG(dev)) dpll |= (1 << (clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; + if (IS_G4X(dev) && has_reduced_clock) + dpll |= (1 << (reduced_clock.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; } switch (clock.p2) { case 5: @@ -2477,7 +2878,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, enable color space conversion */ if (!IS_IGDNG(dev)) { if (pipe == 0) - dspcntr |= DISPPLANE_SEL_PIPE_A; + dspcntr &= ~DISPPLANE_SEL_PIPE_MASK; else dspcntr |= DISPPLANE_SEL_PIPE_B; } @@ -2489,7 +2890,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, * XXX: No double-wide on 915GM pipe B. Is that the only reason for the * pipe == 0 check? */ - if (mode->clock > intel_get_core_clock_speed(dev) * 9 / 10) + if (mode->clock > + dev_priv->display.get_display_clock_speed(dev) * 9 / 10) pipeconf |= PIPEACONF_DOUBLE_WIDE; else pipeconf &= ~PIPEACONF_DOUBLE_WIDE; @@ -2561,9 +2963,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, udelay(150); if (IS_I965G(dev) && !IS_IGDNG(dev)) { - sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; - I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | + if (is_sdvo) { + sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; + I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT)); + } else + I915_WRITE(dpll_md_reg, 0); } else { /* write it again -- the BIOS does, after all */ I915_WRITE(dpll_reg, dpll); @@ -2573,6 +2978,22 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, udelay(150); } + if (is_lvds && has_reduced_clock && i915_powersave) { + I915_WRITE(fp_reg + 4, fp2); + intel_crtc->lowfreq_avail = true; + if (HAS_PIPE_CXSR(dev)) { + DRM_DEBUG("enabling CxSR downclocking\n"); + pipeconf |= PIPECONF_CXSR_DOWNCLOCK; + } + } else { + I915_WRITE(fp_reg + 4, fp); + intel_crtc->lowfreq_avail = false; + if (HAS_PIPE_CXSR(dev)) { + DRM_DEBUG("disabling CxSR downclocking\n"); + pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK; + } + } + I915_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) | ((adjusted_mode->crtc_htotal - 1) << 16)); I915_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) | @@ -2616,11 +3037,20 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, intel_wait_for_vblank(dev); + if (IS_IGDNG(dev)) { + /* enable address swizzle for tiling buffer */ + temp = I915_READ(DISP_ARB_CTL); + I915_WRITE(DISP_ARB_CTL, temp | DISP_TILE_SURFACE_SWIZZLING); + } + I915_WRITE(dspcntr_reg, dspcntr); /* Flush the plane changes */ ret = intel_pipe_set_base(crtc, x, y, old_fb); + if ((IS_I965G(dev) || plane == 0)) + intel_update_fbc(crtc, &crtc->mode); + intel_update_watermarks(dev); drm_vblank_post_modeset(dev, pipe); @@ -2750,6 +3180,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, i915_gem_object_unpin(intel_crtc->cursor_bo); drm_gem_object_unreference(intel_crtc->cursor_bo); } + mutex_unlock(&dev->struct_mutex); intel_crtc->cursor_addr = addr; @@ -2769,10 +3200,16 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + struct intel_framebuffer *intel_fb; int pipe = intel_crtc->pipe; uint32_t temp = 0; uint32_t adder; + if (crtc->fb) { + intel_fb = to_intel_framebuffer(crtc->fb); + intel_mark_busy(dev, intel_fb->obj); + } + if (x < 0) { temp |= CURSOR_POS_SIGN << CURSOR_X_SHIFT; x = -x; @@ -2803,6 +3240,16 @@ void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, intel_crtc->lut_b[regno] = blue >> 8; } +void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, + u16 *blue, int regno) +{ + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + + *red = intel_crtc->lut_r[regno] << 8; + *green = intel_crtc->lut_g[regno] << 8; + *blue = intel_crtc->lut_b[regno] << 8; +} + static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, uint32_t size) { @@ -3070,12 +3517,319 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, return mode; } +#define GPU_IDLE_TIMEOUT 500 /* ms */ + +/* When this timer fires, we've been idle for awhile */ +static void intel_gpu_idle_timer(unsigned long arg) +{ + struct drm_device *dev = (struct drm_device *)arg; + drm_i915_private_t *dev_priv = dev->dev_private; + + DRM_DEBUG("idle timer fired, downclocking\n"); + + dev_priv->busy = false; + + queue_work(dev_priv->wq, &dev_priv->idle_work); +} + +void intel_increase_renderclock(struct drm_device *dev, bool schedule) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + + if (IS_IGDNG(dev)) + return; + + if (!dev_priv->render_reclock_avail) { + DRM_DEBUG("not reclocking render clock\n"); + return; + } + + /* Restore render clock frequency to original value */ + if (IS_G4X(dev) || IS_I9XX(dev)) + pci_write_config_word(dev->pdev, GCFGC, dev_priv->orig_clock); + else if (IS_I85X(dev)) + pci_write_config_word(dev->pdev, HPLLCC, dev_priv->orig_clock); + DRM_DEBUG("increasing render clock frequency\n"); + + /* Schedule downclock */ + if (schedule) + mod_timer(&dev_priv->idle_timer, jiffies + + msecs_to_jiffies(GPU_IDLE_TIMEOUT)); +} + +void intel_decrease_renderclock(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + + if (IS_IGDNG(dev)) + return; + + if (!dev_priv->render_reclock_avail) { + DRM_DEBUG("not reclocking render clock\n"); + return; + } + + if (IS_G4X(dev)) { + u16 gcfgc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + /* Down to minimum... */ + gcfgc &= ~GM45_GC_RENDER_CLOCK_MASK; + gcfgc |= GM45_GC_RENDER_CLOCK_266_MHZ; + + pci_write_config_word(dev->pdev, GCFGC, gcfgc); + } else if (IS_I965G(dev)) { + u16 gcfgc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + /* Down to minimum... */ + gcfgc &= ~I965_GC_RENDER_CLOCK_MASK; + gcfgc |= I965_GC_RENDER_CLOCK_267_MHZ; + + pci_write_config_word(dev->pdev, GCFGC, gcfgc); + } else if (IS_I945G(dev) || IS_I945GM(dev)) { + u16 gcfgc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + /* Down to minimum... */ + gcfgc &= ~I945_GC_RENDER_CLOCK_MASK; + gcfgc |= I945_GC_RENDER_CLOCK_166_MHZ; + + pci_write_config_word(dev->pdev, GCFGC, gcfgc); + } else if (IS_I915G(dev)) { + u16 gcfgc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + /* Down to minimum... */ + gcfgc &= ~I915_GC_RENDER_CLOCK_MASK; + gcfgc |= I915_GC_RENDER_CLOCK_166_MHZ; + + pci_write_config_word(dev->pdev, GCFGC, gcfgc); + } else if (IS_I85X(dev)) { + u16 hpllcc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, HPLLCC, &hpllcc); + + /* Up to maximum... */ + hpllcc &= ~GC_CLOCK_CONTROL_MASK; + hpllcc |= GC_CLOCK_133_200; + + pci_write_config_word(dev->pdev, HPLLCC, hpllcc); + } + DRM_DEBUG("decreasing render clock frequency\n"); +} + +/* Note that no increase function is needed for this - increase_renderclock() + * will also rewrite these bits + */ +void intel_decrease_displayclock(struct drm_device *dev) +{ + if (IS_IGDNG(dev)) + return; + + if (IS_I945G(dev) || IS_I945GM(dev) || IS_I915G(dev) || + IS_I915GM(dev)) { + u16 gcfgc; + + /* Adjust render clock... */ + pci_read_config_word(dev->pdev, GCFGC, &gcfgc); + + /* Down to minimum... */ + gcfgc &= ~0xf0; + gcfgc |= 0x80; + + pci_write_config_word(dev->pdev, GCFGC, gcfgc); + } +} + +#define CRTC_IDLE_TIMEOUT 1000 /* ms */ + +static void intel_crtc_idle_timer(unsigned long arg) +{ + struct intel_crtc *intel_crtc = (struct intel_crtc *)arg; + struct drm_crtc *crtc = &intel_crtc->base; + drm_i915_private_t *dev_priv = crtc->dev->dev_private; + + DRM_DEBUG("idle timer fired, downclocking\n"); + + intel_crtc->busy = false; + + queue_work(dev_priv->wq, &dev_priv->idle_work); +} + +static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule) +{ + struct drm_device *dev = crtc->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; + int dpll = I915_READ(dpll_reg); + + if (IS_IGDNG(dev)) + return; + + if (!dev_priv->lvds_downclock_avail) + return; + + if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) { + DRM_DEBUG("upclocking LVDS\n"); + + /* Unlock panel regs */ + I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16)); + + dpll &= ~DISPLAY_RATE_SELECT_FPA1; + I915_WRITE(dpll_reg, dpll); + dpll = I915_READ(dpll_reg); + intel_wait_for_vblank(dev); + dpll = I915_READ(dpll_reg); + if (dpll & DISPLAY_RATE_SELECT_FPA1) + DRM_DEBUG("failed to upclock LVDS!\n"); + + /* ...and lock them again */ + I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); + } + + /* Schedule downclock */ + if (schedule) + mod_timer(&intel_crtc->idle_timer, jiffies + + msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); +} + +static void intel_decrease_pllclock(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; + int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; + int dpll = I915_READ(dpll_reg); + + if (IS_IGDNG(dev)) + return; + + if (!dev_priv->lvds_downclock_avail) + return; + + /* + * Since this is called by a timer, we should never get here in + * the manual case. + */ + if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { + DRM_DEBUG("downclocking LVDS\n"); + + /* Unlock panel regs */ + I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16)); + + dpll |= DISPLAY_RATE_SELECT_FPA1; + I915_WRITE(dpll_reg, dpll); + dpll = I915_READ(dpll_reg); + intel_wait_for_vblank(dev); + dpll = I915_READ(dpll_reg); + if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) + DRM_DEBUG("failed to downclock LVDS!\n"); + + /* ...and lock them again */ + I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) & 0x3); + } + +} + +/** + * intel_idle_update - adjust clocks for idleness + * @work: work struct + * + * Either the GPU or display (or both) went idle. Check the busy status + * here and adjust the CRTC and GPU clocks as necessary. + */ +static void intel_idle_update(struct work_struct *work) +{ + drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, + idle_work); + struct drm_device *dev = dev_priv->dev; + struct drm_crtc *crtc; + struct intel_crtc *intel_crtc; + + if (!i915_powersave) + return; + + mutex_lock(&dev->struct_mutex); + + /* GPU isn't processing, downclock it. */ + if (!dev_priv->busy) { + intel_decrease_renderclock(dev); + intel_decrease_displayclock(dev); + } + + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + /* Skip inactive CRTCs */ + if (!crtc->fb) + continue; + + intel_crtc = to_intel_crtc(crtc); + if (!intel_crtc->busy) + intel_decrease_pllclock(crtc); + } + + mutex_unlock(&dev->struct_mutex); +} + +/** + * intel_mark_busy - mark the GPU and possibly the display busy + * @dev: drm device + * @obj: object we're operating on + * + * Callers can use this function to indicate that the GPU is busy processing + * commands. If @obj matches one of the CRTC objects (i.e. it's a scanout + * buffer), we'll also mark the display as busy, so we know to increase its + * clock frequency. + */ +void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + struct drm_crtc *crtc = NULL; + struct intel_framebuffer *intel_fb; + struct intel_crtc *intel_crtc; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return; + + dev_priv->busy = true; + intel_increase_renderclock(dev, true); + + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + if (!crtc->fb) + continue; + + intel_crtc = to_intel_crtc(crtc); + intel_fb = to_intel_framebuffer(crtc->fb); + if (intel_fb->obj == obj) { + if (!intel_crtc->busy) { + /* Non-busy -> busy, upclock */ + intel_increase_pllclock(crtc, true); + intel_crtc->busy = true; + } else { + /* Busy -> busy, put off timer */ + mod_timer(&intel_crtc->idle_timer, jiffies + + msecs_to_jiffies(CRTC_IDLE_TIMEOUT)); + } + } + } +} + static void intel_crtc_destroy(struct drm_crtc *crtc) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - if (intel_crtc->mode_set.mode) - drm_mode_destroy(crtc->dev, intel_crtc->mode_set.mode); drm_crtc_cleanup(crtc); kfree(intel_crtc); } @@ -3087,6 +3841,7 @@ static const struct drm_crtc_helper_funcs intel_helper_funcs = { .mode_set_base = intel_pipe_set_base, .prepare = intel_crtc_prepare, .commit = intel_crtc_commit, + .load_lut = intel_crtc_load_lut, }; static const struct drm_crtc_funcs intel_crtc_funcs = { @@ -3118,19 +3873,22 @@ static void intel_crtc_init(struct drm_device *dev, int pipe) intel_crtc->lut_b[i] = i; } + /* Swap pipes & planes for FBC on pre-965 */ + intel_crtc->pipe = pipe; + intel_crtc->plane = pipe; + if (IS_MOBILE(dev) && (IS_I9XX(dev) && !IS_I965G(dev))) { + DRM_DEBUG("swapping pipes & planes for FBC\n"); + intel_crtc->plane = ((pipe == 0) ? 1 : 0); + } + intel_crtc->cursor_addr = 0; intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); - intel_crtc->mode_set.crtc = &intel_crtc->base; - intel_crtc->mode_set.connectors = (struct drm_connector **)(intel_crtc + 1); - intel_crtc->mode_set.num_connectors = 0; - - if (i915_fbpercrtc) { - - + intel_crtc->busy = false; - } + setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, + (unsigned long)intel_crtc); } int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, @@ -3138,30 +3896,26 @@ int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, { drm_i915_private_t *dev_priv = dev->dev_private; struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; - struct drm_crtc *crtc = NULL; - int pipe = -1; + struct drm_mode_object *drmmode_obj; + struct intel_crtc *crtc; if (!dev_priv) { DRM_ERROR("called with no initialization\n"); return -EINVAL; } - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - if (crtc->base.id == pipe_from_crtc_id->crtc_id) { - pipe = intel_crtc->pipe; - break; - } - } + drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id, + DRM_MODE_OBJECT_CRTC); - if (pipe == -1) { + if (!drmmode_obj) { DRM_ERROR("no such CRTC id\n"); return -EINVAL; } - pipe_from_crtc_id->pipe = pipe; + crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); + pipe_from_crtc_id->pipe = crtc->pipe; - return 0; + return 0; } struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe) @@ -3362,8 +4116,123 @@ static const struct drm_mode_config_funcs intel_mode_funcs = { .fb_changed = intelfb_probe, }; +void intel_init_clock_gating(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + /* + * Disable clock gating reported to work incorrectly according to the + * specs, but enable as much else as we can. + */ + if (IS_G4X(dev)) { + uint32_t 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_I9XX(dev)) { + u32 dstate = I915_READ(D_STATE); + + dstate |= DSTATE_PLL_D3_OFF | DSTATE_GFX_CLOCK_GATING | + DSTATE_DOT_CLOCK_GATING; + I915_WRITE(D_STATE, dstate); + } 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); + } +} + +/* Set up chip specific display functions */ +static void intel_init_display(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + /* We always want a DPMS function */ + if (IS_IGDNG(dev)) + dev_priv->display.dpms = igdng_crtc_dpms; + else + dev_priv->display.dpms = i9xx_crtc_dpms; + + /* Only mobile has FBC, leave pointers NULL for other chips */ + if (IS_MOBILE(dev)) { + if (IS_GM45(dev)) { + dev_priv->display.fbc_enabled = g4x_fbc_enabled; + dev_priv->display.enable_fbc = g4x_enable_fbc; + dev_priv->display.disable_fbc = g4x_disable_fbc; + } else if (IS_I965GM(dev) || IS_I945GM(dev) || IS_I915GM(dev)) { + dev_priv->display.fbc_enabled = i8xx_fbc_enabled; + dev_priv->display.enable_fbc = i8xx_enable_fbc; + dev_priv->display.disable_fbc = i8xx_disable_fbc; + } + /* 855GM needs testing */ + } + + /* Returns the core display clock speed */ + if (IS_I945G(dev)) + dev_priv->display.get_display_clock_speed = + i945_get_display_clock_speed; + else if (IS_I915G(dev)) + dev_priv->display.get_display_clock_speed = + i915_get_display_clock_speed; + else if (IS_I945GM(dev) || IS_845G(dev) || IS_IGDGM(dev)) + dev_priv->display.get_display_clock_speed = + i9xx_misc_get_display_clock_speed; + else if (IS_I915GM(dev)) + dev_priv->display.get_display_clock_speed = + i915gm_get_display_clock_speed; + else if (IS_I865G(dev)) + dev_priv->display.get_display_clock_speed = + i865_get_display_clock_speed; + else if (IS_I855(dev)) + dev_priv->display.get_display_clock_speed = + i855_get_display_clock_speed; + else /* 852, 830 */ + dev_priv->display.get_display_clock_speed = + i830_get_display_clock_speed; + + /* For FIFO watermark updates */ + if (IS_G4X(dev)) + dev_priv->display.update_wm = g4x_update_wm; + else if (IS_I965G(dev)) + dev_priv->display.update_wm = i965_update_wm; + else if (IS_I9XX(dev) || IS_MOBILE(dev)) { + dev_priv->display.update_wm = i9xx_update_wm; + dev_priv->display.get_fifo_size = i9xx_get_fifo_size; + } else { + if (IS_I85X(dev)) + dev_priv->display.get_fifo_size = i85x_get_fifo_size; + else if (IS_845G(dev)) + dev_priv->display.get_fifo_size = i845_get_fifo_size; + else + dev_priv->display.get_fifo_size = i830_get_fifo_size; + dev_priv->display.update_wm = i830_update_wm; + } +} + void intel_modeset_init(struct drm_device *dev) { + struct drm_i915_private *dev_priv = dev->dev_private; int num_pipe; int i; @@ -3374,6 +4243,8 @@ void intel_modeset_init(struct drm_device *dev) dev->mode_config.funcs = (void *)&intel_mode_funcs; + intel_init_display(dev); + if (IS_I965G(dev)) { dev->mode_config.max_width = 8192; dev->mode_config.max_height = 8192; @@ -3398,15 +4269,50 @@ void intel_modeset_init(struct drm_device *dev) DRM_DEBUG("%d display pipe%s available.\n", num_pipe, num_pipe > 1 ? "s" : ""); + if (IS_I85X(dev)) + pci_read_config_word(dev->pdev, HPLLCC, &dev_priv->orig_clock); + else if (IS_I9XX(dev) || IS_G4X(dev)) + pci_read_config_word(dev->pdev, GCFGC, &dev_priv->orig_clock); + for (i = 0; i < num_pipe; i++) { intel_crtc_init(dev, i); } intel_setup_outputs(dev); + + intel_init_clock_gating(dev); + + INIT_WORK(&dev_priv->idle_work, intel_idle_update); + setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, + (unsigned long)dev); } void intel_modeset_cleanup(struct drm_device *dev) { + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_crtc *crtc; + struct intel_crtc *intel_crtc; + + mutex_lock(&dev->struct_mutex); + + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + /* Skip inactive CRTCs */ + if (!crtc->fb) + continue; + + intel_crtc = to_intel_crtc(crtc); + intel_increase_pllclock(crtc, false); + del_timer_sync(&intel_crtc->idle_timer); + } + + intel_increase_renderclock(dev, false); + del_timer_sync(&dev_priv->idle_timer); + + mutex_unlock(&dev->struct_mutex); + + if (dev_priv->display.disable_fbc) + dev_priv->display.disable_fbc(dev); + drm_mode_config_cleanup(dev); } @@ -3420,3 +4326,20 @@ struct drm_encoder *intel_best_encoder(struct drm_connector *connector) return &intel_output->enc; } + +/* + * set vga decode state - true == enable VGA decode + */ +int intel_modeset_vga_set_state(struct drm_device *dev, bool state) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u16 gmch_ctrl; + + pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl); + if (state) + gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE; + else + gmch_ctrl |= INTEL_GMCH_VGA_DISABLE; + pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl); + return 0; +} |