diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_fbc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbc.c | 1829 |
1 files changed, 1012 insertions, 817 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index c40444206425..8be01b93015f 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -41,26 +41,71 @@ #include <drm/drm_fourcc.h> #include "i915_drv.h" -#include "i915_trace.h" #include "i915_vgpu.h" +#include "intel_cdclk.h" #include "intel_de.h" +#include "intel_display_trace.h" #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" -/* - * For SKL+, the plane source size used by the hardware is based on the value we - * write to the PLANE_SIZE register. For BDW-, the hardware looks at the value - * we wrote to PIPESRC. - */ -static void intel_fbc_get_plane_source_size(const struct intel_fbc_state_cache *cache, - int *width, int *height) -{ - if (width) - *width = cache->plane.src_w; - if (height) - *height = cache->plane.src_h; -} +struct intel_fbc_funcs { + void (*activate)(struct intel_fbc *fbc); + void (*deactivate)(struct intel_fbc *fbc); + bool (*is_active)(struct intel_fbc *fbc); + bool (*is_compressing)(struct intel_fbc *fbc); + void (*nuke)(struct intel_fbc *fbc); + void (*program_cfb)(struct intel_fbc *fbc); + void (*set_false_color)(struct intel_fbc *fbc, bool enable); +}; + +struct intel_fbc_state { + struct intel_plane *plane; + unsigned int cfb_stride; + unsigned int cfb_size; + unsigned int fence_y_offset; + u16 override_cfb_stride; + u16 interval; + s8 fence_id; +}; + +struct intel_fbc { + struct drm_i915_private *i915; + const struct intel_fbc_funcs *funcs; + + /* + * This is always the inner lock when overlapping with + * struct_mutex and it's the outer lock when overlapping + * with stolen_lock. + */ + struct mutex lock; + unsigned int possible_framebuffer_bits; + unsigned int busy_bits; + + struct drm_mm_node compressed_fb; + struct drm_mm_node compressed_llb; + + u8 limit; + + bool false_color; + + bool active; + bool activated; + bool flip_pending; + + bool underrun_detected; + struct work_struct underrun_work; + + /* + * This structure contains everything that's relevant to program the + * hardware registers. When we want to figure out if we need to disable + * and re-enable FBC for a new configuration we just check if there's + * something different in the struct. The genx_fbc_activate functions + * are supposed to read from it in order to program the registers. + */ + struct intel_fbc_state state; + const char *no_fbc_reason; +}; /* plane stride in pixels */ static unsigned int intel_fbc_plane_stride(const struct intel_plane_state *plane_state) @@ -68,7 +113,7 @@ static unsigned int intel_fbc_plane_stride(const struct intel_plane_state *plane const struct drm_framebuffer *fb = plane_state->hw.fb; unsigned int stride; - stride = plane_state->view.color_plane[0].stride; + stride = plane_state->view.color_plane[0].mapping_stride; if (!drm_rotation_90_or_270(plane_state->hw.rotation)) stride /= fb->format->cpp[0]; @@ -76,24 +121,25 @@ static unsigned int intel_fbc_plane_stride(const struct intel_plane_state *plane } /* plane stride based cfb stride in bytes, assuming 1:1 compression limit */ -static unsigned int _intel_fbc_cfb_stride(const struct intel_fbc_state_cache *cache) +static unsigned int _intel_fbc_cfb_stride(const struct intel_plane_state *plane_state) { unsigned int cpp = 4; /* FBC always 4 bytes per pixel */ - return cache->fb.stride * cpp; + return intel_fbc_plane_stride(plane_state) * cpp; } /* minimum acceptable cfb stride in bytes, assuming 1:1 compression limit */ -static unsigned int skl_fbc_min_cfb_stride(struct drm_i915_private *i915, - const struct intel_fbc_state_cache *cache) +static unsigned int skl_fbc_min_cfb_stride(const struct intel_plane_state *plane_state) { + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); unsigned int limit = 4; /* 1:4 compression limit is the worst case */ unsigned int cpp = 4; /* FBC always 4 bytes per pixel */ + unsigned int width = drm_rect_width(&plane_state->uapi.src) >> 16; unsigned int height = 4; /* FBC segment is 4 lines */ unsigned int stride; /* minimum segment stride we can use */ - stride = cache->plane.src_w * cpp * height / limit; + stride = width * cpp * height / limit; /* * Wa_16011863758: icl+ @@ -113,10 +159,10 @@ static unsigned int skl_fbc_min_cfb_stride(struct drm_i915_private *i915, } /* properly aligned cfb stride in bytes, assuming 1:1 compression limit */ -static unsigned int intel_fbc_cfb_stride(struct drm_i915_private *i915, - const struct intel_fbc_state_cache *cache) +static unsigned int intel_fbc_cfb_stride(const struct intel_plane_state *plane_state) { - unsigned int stride = _intel_fbc_cfb_stride(cache); + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + unsigned int stride = _intel_fbc_cfb_stride(plane_state); /* * At least some of the platforms require each 4 line segment to @@ -124,98 +170,202 @@ static unsigned int intel_fbc_cfb_stride(struct drm_i915_private *i915, * that regardless of the compression limit we choose later. */ if (DISPLAY_VER(i915) >= 9) - return max(ALIGN(stride, 512), skl_fbc_min_cfb_stride(i915, cache)); + return max(ALIGN(stride, 512), skl_fbc_min_cfb_stride(plane_state)); else return stride; } -static unsigned int intel_fbc_cfb_size(struct drm_i915_private *dev_priv, - const struct intel_fbc_state_cache *cache) +static unsigned int intel_fbc_cfb_size(const struct intel_plane_state *plane_state) { - int lines = cache->plane.src_h; + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + int lines = drm_rect_height(&plane_state->uapi.src) >> 16; - if (DISPLAY_VER(dev_priv) == 7) + if (DISPLAY_VER(i915) == 7) lines = min(lines, 2048); - else if (DISPLAY_VER(dev_priv) >= 8) + else if (DISPLAY_VER(i915) >= 8) lines = min(lines, 2560); - return lines * intel_fbc_cfb_stride(dev_priv, cache); + return lines * intel_fbc_cfb_stride(plane_state); +} + +static u16 intel_fbc_override_cfb_stride(const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + unsigned int stride_aligned = intel_fbc_cfb_stride(plane_state); + unsigned int stride = _intel_fbc_cfb_stride(plane_state); + const struct drm_framebuffer *fb = plane_state->hw.fb; + + /* + * Override stride in 64 byte units per 4 line segment. + * + * Gen9 hw miscalculates cfb stride for linear as + * PLANE_STRIDE*512 instead of PLANE_STRIDE*64, so + * we always need to use the override there. + */ + if (stride != stride_aligned || + (DISPLAY_VER(i915) == 9 && fb->modifier == DRM_FORMAT_MOD_LINEAR)) + return stride_aligned * 4 / 64; + + return 0; } -static void i8xx_fbc_deactivate(struct drm_i915_private *dev_priv) +static u32 i8xx_fbc_ctl(struct intel_fbc *fbc) { + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; + unsigned int cfb_stride; + u32 fbc_ctl; + + cfb_stride = fbc_state->cfb_stride / fbc->limit; + + /* FBC_CTL wants 32B or 64B units */ + if (DISPLAY_VER(i915) == 2) + cfb_stride = (cfb_stride / 32) - 1; + else + cfb_stride = (cfb_stride / 64) - 1; + + fbc_ctl = FBC_CTL_PERIODIC | + FBC_CTL_INTERVAL(fbc_state->interval) | + FBC_CTL_STRIDE(cfb_stride); + + if (IS_I945GM(i915)) + fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ + + if (fbc_state->fence_id >= 0) + fbc_ctl |= FBC_CTL_FENCENO(fbc_state->fence_id); + + return fbc_ctl; +} + +static u32 i965_fbc_ctl2(struct intel_fbc *fbc) +{ + const struct intel_fbc_state *fbc_state = &fbc->state; + u32 fbc_ctl2; + + fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM | + FBC_CTL_PLANE(fbc_state->plane->i9xx_plane); + + if (fbc_state->fence_id >= 0) + fbc_ctl2 |= FBC_CTL_CPU_FENCE_EN; + + return fbc_ctl2; +} + +static void i8xx_fbc_deactivate(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; u32 fbc_ctl; /* Disable compression */ - fbc_ctl = intel_de_read(dev_priv, FBC_CONTROL); + fbc_ctl = intel_de_read(i915, FBC_CONTROL); if ((fbc_ctl & FBC_CTL_EN) == 0) return; fbc_ctl &= ~FBC_CTL_EN; - intel_de_write(dev_priv, FBC_CONTROL, fbc_ctl); + intel_de_write(i915, FBC_CONTROL, fbc_ctl); /* Wait for compressing bit to clear */ - if (intel_de_wait_for_clear(dev_priv, FBC_STATUS, + if (intel_de_wait_for_clear(i915, FBC_STATUS, FBC_STAT_COMPRESSING, 10)) { - drm_dbg_kms(&dev_priv->drm, "FBC idle timed out\n"); + drm_dbg_kms(&i915->drm, "FBC idle timed out\n"); return; } } -static void i8xx_fbc_activate(struct drm_i915_private *dev_priv) +static void i8xx_fbc_activate(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; - const struct intel_fbc_reg_params *params = &fbc->params; - int cfb_pitch; + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; int i; - u32 fbc_ctl; - - cfb_pitch = params->cfb_stride / fbc->limit; - - /* FBC_CTL wants 32B or 64B units */ - if (DISPLAY_VER(dev_priv) == 2) - cfb_pitch = (cfb_pitch / 32) - 1; - else - cfb_pitch = (cfb_pitch / 64) - 1; /* Clear old tags */ for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++) - intel_de_write(dev_priv, FBC_TAG(i), 0); - - if (DISPLAY_VER(dev_priv) == 4) { - u32 fbc_ctl2; - - /* Set it up... */ - fbc_ctl2 = FBC_CTL_FENCE_DBL | FBC_CTL_IDLE_IMM; - fbc_ctl2 |= FBC_CTL_PLANE(params->crtc.i9xx_plane); - if (params->fence_id >= 0) - fbc_ctl2 |= FBC_CTL_CPU_FENCE; - intel_de_write(dev_priv, FBC_CONTROL2, fbc_ctl2); - intel_de_write(dev_priv, FBC_FENCE_OFF, - params->fence_y_offset); + intel_de_write(i915, FBC_TAG(i), 0); + + if (DISPLAY_VER(i915) == 4) { + intel_de_write(i915, FBC_CONTROL2, + i965_fbc_ctl2(fbc)); + intel_de_write(i915, FBC_FENCE_OFF, + fbc_state->fence_y_offset); } - /* enable it... */ - fbc_ctl = FBC_CTL_INTERVAL(params->interval); - fbc_ctl |= FBC_CTL_EN | FBC_CTL_PERIODIC; - if (IS_I945GM(dev_priv)) - fbc_ctl |= FBC_CTL_C3_IDLE; /* 945 needs special SR handling */ - fbc_ctl |= FBC_CTL_STRIDE(cfb_pitch & 0xff); - if (params->fence_id >= 0) - fbc_ctl |= FBC_CTL_FENCENO(params->fence_id); - intel_de_write(dev_priv, FBC_CONTROL, fbc_ctl); + intel_de_write(i915, FBC_CONTROL, + FBC_CTL_EN | i8xx_fbc_ctl(fbc)); +} + +static bool i8xx_fbc_is_active(struct intel_fbc *fbc) +{ + return intel_de_read(fbc->i915, FBC_CONTROL) & FBC_CTL_EN; +} + +static bool i8xx_fbc_is_compressing(struct intel_fbc *fbc) +{ + return intel_de_read(fbc->i915, FBC_STATUS) & + (FBC_STAT_COMPRESSING | FBC_STAT_COMPRESSED); +} + +static void i8xx_fbc_nuke(struct intel_fbc *fbc) +{ + struct intel_fbc_state *fbc_state = &fbc->state; + enum i9xx_plane_id i9xx_plane = fbc_state->plane->i9xx_plane; + struct drm_i915_private *dev_priv = fbc->i915; + + spin_lock_irq(&dev_priv->uncore.lock); + intel_de_write_fw(dev_priv, DSPADDR(i9xx_plane), + intel_de_read_fw(dev_priv, DSPADDR(i9xx_plane))); + spin_unlock_irq(&dev_priv->uncore.lock); } -static bool i8xx_fbc_is_active(struct drm_i915_private *dev_priv) +static void i8xx_fbc_program_cfb(struct intel_fbc *fbc) { - return intel_de_read(dev_priv, FBC_CONTROL) & FBC_CTL_EN; + struct drm_i915_private *i915 = fbc->i915; + + GEM_BUG_ON(range_overflows_end_t(u64, i915->dsm.start, + fbc->compressed_fb.start, U32_MAX)); + GEM_BUG_ON(range_overflows_end_t(u64, i915->dsm.start, + fbc->compressed_llb.start, U32_MAX)); + + intel_de_write(i915, FBC_CFB_BASE, + i915->dsm.start + fbc->compressed_fb.start); + intel_de_write(i915, FBC_LL_BASE, + i915->dsm.start + fbc->compressed_llb.start); } -static u32 g4x_dpfc_ctl_limit(struct drm_i915_private *i915) +static const struct intel_fbc_funcs i8xx_fbc_funcs = { + .activate = i8xx_fbc_activate, + .deactivate = i8xx_fbc_deactivate, + .is_active = i8xx_fbc_is_active, + .is_compressing = i8xx_fbc_is_compressing, + .nuke = i8xx_fbc_nuke, + .program_cfb = i8xx_fbc_program_cfb, +}; + +static void i965_fbc_nuke(struct intel_fbc *fbc) { - switch (i915->fbc.limit) { + struct intel_fbc_state *fbc_state = &fbc->state; + enum i9xx_plane_id i9xx_plane = fbc_state->plane->i9xx_plane; + struct drm_i915_private *dev_priv = fbc->i915; + + spin_lock_irq(&dev_priv->uncore.lock); + intel_de_write_fw(dev_priv, DSPSURF(i9xx_plane), + intel_de_read_fw(dev_priv, DSPSURF(i9xx_plane))); + spin_unlock_irq(&dev_priv->uncore.lock); +} + +static const struct intel_fbc_funcs i965_fbc_funcs = { + .activate = i8xx_fbc_activate, + .deactivate = i8xx_fbc_deactivate, + .is_active = i8xx_fbc_is_active, + .is_compressing = i8xx_fbc_is_compressing, + .nuke = i965_fbc_nuke, + .program_cfb = i8xx_fbc_program_cfb, +}; + +static u32 g4x_dpfc_ctl_limit(struct intel_fbc *fbc) +{ + switch (fbc->limit) { default: - MISSING_CASE(i915->fbc.limit); + MISSING_CASE(fbc->limit); fallthrough; case 1: return DPFC_CTL_LIMIT_1X; @@ -226,260 +376,306 @@ static u32 g4x_dpfc_ctl_limit(struct drm_i915_private *i915) } } -static void g4x_fbc_activate(struct drm_i915_private *dev_priv) +static u32 g4x_dpfc_ctl(struct intel_fbc *fbc) { - struct intel_fbc_reg_params *params = &dev_priv->fbc.params; + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; u32 dpfc_ctl; - dpfc_ctl = DPFC_CTL_PLANE(params->crtc.i9xx_plane) | DPFC_SR_EN; + dpfc_ctl = g4x_dpfc_ctl_limit(fbc) | + DPFC_CTL_PLANE_G4X(fbc_state->plane->i9xx_plane); - dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv); + if (IS_G4X(i915)) + dpfc_ctl |= DPFC_CTL_SR_EN; - if (params->fence_id >= 0) { - dpfc_ctl |= DPFC_CTL_FENCE_EN | params->fence_id; - intel_de_write(dev_priv, DPFC_FENCE_YOFF, - params->fence_y_offset); - } else { - intel_de_write(dev_priv, DPFC_FENCE_YOFF, 0); + if (fbc_state->fence_id >= 0) { + dpfc_ctl |= DPFC_CTL_FENCE_EN_G4X; + + if (DISPLAY_VER(i915) < 6) + dpfc_ctl |= DPFC_CTL_FENCENO(fbc_state->fence_id); } - /* enable it... */ - intel_de_write(dev_priv, DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); + return dpfc_ctl; } -static void g4x_fbc_deactivate(struct drm_i915_private *dev_priv) +static void g4x_fbc_activate(struct intel_fbc *fbc) { + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; + + intel_de_write(i915, DPFC_FENCE_YOFF, + fbc_state->fence_y_offset); + + intel_de_write(i915, DPFC_CONTROL, + DPFC_CTL_EN | g4x_dpfc_ctl(fbc)); +} + +static void g4x_fbc_deactivate(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; u32 dpfc_ctl; /* Disable compression */ - dpfc_ctl = intel_de_read(dev_priv, DPFC_CONTROL); + dpfc_ctl = intel_de_read(i915, DPFC_CONTROL); if (dpfc_ctl & DPFC_CTL_EN) { dpfc_ctl &= ~DPFC_CTL_EN; - intel_de_write(dev_priv, DPFC_CONTROL, dpfc_ctl); + intel_de_write(i915, DPFC_CONTROL, dpfc_ctl); } } -static bool g4x_fbc_is_active(struct drm_i915_private *dev_priv) +static bool g4x_fbc_is_active(struct intel_fbc *fbc) { - return intel_de_read(dev_priv, DPFC_CONTROL) & DPFC_CTL_EN; + return intel_de_read(fbc->i915, DPFC_CONTROL) & DPFC_CTL_EN; } -static void i8xx_fbc_recompress(struct drm_i915_private *dev_priv) +static bool g4x_fbc_is_compressing(struct intel_fbc *fbc) { - struct intel_fbc_reg_params *params = &dev_priv->fbc.params; - enum i9xx_plane_id i9xx_plane = params->crtc.i9xx_plane; + return intel_de_read(fbc->i915, DPFC_STATUS) & DPFC_COMP_SEG_MASK; +} - spin_lock_irq(&dev_priv->uncore.lock); - intel_de_write_fw(dev_priv, DSPADDR(i9xx_plane), - intel_de_read_fw(dev_priv, DSPADDR(i9xx_plane))); - spin_unlock_irq(&dev_priv->uncore.lock); +static void g4x_fbc_program_cfb(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; + + intel_de_write(i915, DPFC_CB_BASE, fbc->compressed_fb.start); } -static void i965_fbc_recompress(struct drm_i915_private *dev_priv) +static const struct intel_fbc_funcs g4x_fbc_funcs = { + .activate = g4x_fbc_activate, + .deactivate = g4x_fbc_deactivate, + .is_active = g4x_fbc_is_active, + .is_compressing = g4x_fbc_is_compressing, + .nuke = i965_fbc_nuke, + .program_cfb = g4x_fbc_program_cfb, +}; + +static void ilk_fbc_activate(struct intel_fbc *fbc) { - struct intel_fbc_reg_params *params = &dev_priv->fbc.params; - enum i9xx_plane_id i9xx_plane = params->crtc.i9xx_plane; + struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; - spin_lock_irq(&dev_priv->uncore.lock); - intel_de_write_fw(dev_priv, DSPSURF(i9xx_plane), - intel_de_read_fw(dev_priv, DSPSURF(i9xx_plane))); - spin_unlock_irq(&dev_priv->uncore.lock); + intel_de_write(i915, ILK_DPFC_FENCE_YOFF, + fbc_state->fence_y_offset); + + intel_de_write(i915, ILK_DPFC_CONTROL, + DPFC_CTL_EN | g4x_dpfc_ctl(fbc)); } -/* This function forces a CFB recompression through the nuke operation. */ -static void snb_fbc_recompress(struct drm_i915_private *dev_priv) +static void ilk_fbc_deactivate(struct intel_fbc *fbc) { - intel_de_write(dev_priv, MSG_FBC_REND_STATE, FBC_REND_NUKE); - intel_de_posting_read(dev_priv, MSG_FBC_REND_STATE); + struct drm_i915_private *i915 = fbc->i915; + u32 dpfc_ctl; + + /* Disable compression */ + dpfc_ctl = intel_de_read(i915, ILK_DPFC_CONTROL); + if (dpfc_ctl & DPFC_CTL_EN) { + dpfc_ctl &= ~DPFC_CTL_EN; + intel_de_write(i915, ILK_DPFC_CONTROL, dpfc_ctl); + } +} + +static bool ilk_fbc_is_active(struct intel_fbc *fbc) +{ + return intel_de_read(fbc->i915, ILK_DPFC_CONTROL) & DPFC_CTL_EN; } -static void intel_fbc_recompress(struct drm_i915_private *dev_priv) +static bool ilk_fbc_is_compressing(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; + return intel_de_read(fbc->i915, ILK_DPFC_STATUS) & DPFC_COMP_SEG_MASK; +} - trace_intel_fbc_nuke(fbc->crtc); +static void ilk_fbc_program_cfb(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; - if (DISPLAY_VER(dev_priv) >= 6) - snb_fbc_recompress(dev_priv); - else if (DISPLAY_VER(dev_priv) >= 4) - i965_fbc_recompress(dev_priv); - else - i8xx_fbc_recompress(dev_priv); + intel_de_write(i915, ILK_DPFC_CB_BASE, fbc->compressed_fb.start); } -static void ilk_fbc_activate(struct drm_i915_private *dev_priv) +static const struct intel_fbc_funcs ilk_fbc_funcs = { + .activate = ilk_fbc_activate, + .deactivate = ilk_fbc_deactivate, + .is_active = ilk_fbc_is_active, + .is_compressing = ilk_fbc_is_compressing, + .nuke = i965_fbc_nuke, + .program_cfb = ilk_fbc_program_cfb, +}; + +static void snb_fbc_program_fence(struct intel_fbc *fbc) { - struct intel_fbc_reg_params *params = &dev_priv->fbc.params; - u32 dpfc_ctl; + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; + u32 ctl = 0; - dpfc_ctl = DPFC_CTL_PLANE(params->crtc.i9xx_plane); + if (fbc_state->fence_id >= 0) + ctl = SNB_DPFC_FENCE_EN | SNB_DPFC_FENCENO(fbc_state->fence_id); - dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv); + intel_de_write(i915, SNB_DPFC_CTL_SA, ctl); + intel_de_write(i915, SNB_DPFC_CPU_FENCE_OFFSET, fbc_state->fence_y_offset); +} - if (params->fence_id >= 0) { - dpfc_ctl |= DPFC_CTL_FENCE_EN; - if (IS_IRONLAKE(dev_priv)) - dpfc_ctl |= params->fence_id; - if (IS_SANDYBRIDGE(dev_priv)) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, - SNB_CPU_FENCE_ENABLE | params->fence_id); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, - params->fence_y_offset); - } - } else { - if (IS_SANDYBRIDGE(dev_priv)) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, 0); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, 0); - } - } +static void snb_fbc_activate(struct intel_fbc *fbc) +{ + snb_fbc_program_fence(fbc); - intel_de_write(dev_priv, ILK_DPFC_FENCE_YOFF, - params->fence_y_offset); - /* enable it... */ - intel_de_write(dev_priv, ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); + ilk_fbc_activate(fbc); } -static void ilk_fbc_deactivate(struct drm_i915_private *dev_priv) +static void snb_fbc_nuke(struct intel_fbc *fbc) { - u32 dpfc_ctl; + struct drm_i915_private *i915 = fbc->i915; - /* Disable compression */ - dpfc_ctl = intel_de_read(dev_priv, ILK_DPFC_CONTROL); - if (dpfc_ctl & DPFC_CTL_EN) { - dpfc_ctl &= ~DPFC_CTL_EN; - intel_de_write(dev_priv, ILK_DPFC_CONTROL, dpfc_ctl); - } + intel_de_write(i915, MSG_FBC_REND_STATE, FBC_REND_NUKE); + intel_de_posting_read(i915, MSG_FBC_REND_STATE); +} + +static const struct intel_fbc_funcs snb_fbc_funcs = { + .activate = snb_fbc_activate, + .deactivate = ilk_fbc_deactivate, + .is_active = ilk_fbc_is_active, + .is_compressing = ilk_fbc_is_compressing, + .nuke = snb_fbc_nuke, + .program_cfb = ilk_fbc_program_cfb, +}; + +static void glk_fbc_program_cfb_stride(struct intel_fbc *fbc) +{ + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; + u32 val = 0; + + if (fbc_state->override_cfb_stride) + val |= FBC_STRIDE_OVERRIDE | + FBC_STRIDE(fbc_state->override_cfb_stride / fbc->limit); + + intel_de_write(i915, GLK_FBC_STRIDE, val); } -static bool ilk_fbc_is_active(struct drm_i915_private *dev_priv) +static void skl_fbc_program_cfb_stride(struct intel_fbc *fbc) { - return intel_de_read(dev_priv, ILK_DPFC_CONTROL) & DPFC_CTL_EN; + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; + u32 val = 0; + + /* Display WA #0529: skl, kbl, bxt. */ + if (fbc_state->override_cfb_stride) + val |= CHICKEN_FBC_STRIDE_OVERRIDE | + CHICKEN_FBC_STRIDE(fbc_state->override_cfb_stride / fbc->limit); + + intel_de_rmw(i915, CHICKEN_MISC_4, + CHICKEN_FBC_STRIDE_OVERRIDE | + CHICKEN_FBC_STRIDE_MASK, val); } -static void gen7_fbc_activate(struct drm_i915_private *dev_priv) +static u32 ivb_dpfc_ctl(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; - const struct intel_fbc_reg_params *params = &fbc->params; + const struct intel_fbc_state *fbc_state = &fbc->state; + struct drm_i915_private *i915 = fbc->i915; u32 dpfc_ctl; - if (DISPLAY_VER(dev_priv) >= 10) { - u32 val = 0; + dpfc_ctl = g4x_dpfc_ctl_limit(fbc); - if (params->override_cfb_stride) - val |= FBC_STRIDE_OVERRIDE | - FBC_STRIDE(params->override_cfb_stride / fbc->limit); + if (IS_IVYBRIDGE(i915)) + dpfc_ctl |= DPFC_CTL_PLANE_IVB(fbc_state->plane->i9xx_plane); - intel_de_write(dev_priv, GLK_FBC_STRIDE, val); - } else if (DISPLAY_VER(dev_priv) == 9) { - u32 val = 0; + if (fbc_state->fence_id >= 0) + dpfc_ctl |= DPFC_CTL_FENCE_EN_IVB; - /* Display WA #0529: skl, kbl, bxt. */ - if (params->override_cfb_stride) - val |= CHICKEN_FBC_STRIDE_OVERRIDE | - CHICKEN_FBC_STRIDE(params->override_cfb_stride / fbc->limit); + if (fbc->false_color) + dpfc_ctl |= DPFC_CTL_FALSE_COLOR; - intel_de_rmw(dev_priv, CHICKEN_MISC_4, - CHICKEN_FBC_STRIDE_OVERRIDE | - CHICKEN_FBC_STRIDE_MASK, val); - } + return dpfc_ctl; +} - dpfc_ctl = 0; - if (IS_IVYBRIDGE(dev_priv)) - dpfc_ctl |= IVB_DPFC_CTL_PLANE(params->crtc.i9xx_plane); - - dpfc_ctl |= g4x_dpfc_ctl_limit(dev_priv); - - if (params->fence_id >= 0) { - dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN; - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, - SNB_CPU_FENCE_ENABLE | params->fence_id); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, - params->fence_y_offset); - } else if (dev_priv->ggtt.num_fences) { - intel_de_write(dev_priv, SNB_DPFC_CTL_SA, 0); - intel_de_write(dev_priv, DPFC_CPU_FENCE_OFFSET, 0); - } +static void ivb_fbc_activate(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; + + if (DISPLAY_VER(i915) >= 10) + glk_fbc_program_cfb_stride(fbc); + else if (DISPLAY_VER(i915) == 9) + skl_fbc_program_cfb_stride(fbc); - if (dev_priv->fbc.false_color) - dpfc_ctl |= FBC_CTL_FALSE_COLOR; + if (i915->ggtt.num_fences) + snb_fbc_program_fence(fbc); - intel_de_write(dev_priv, ILK_DPFC_CONTROL, dpfc_ctl | DPFC_CTL_EN); + intel_de_write(i915, ILK_DPFC_CONTROL, + DPFC_CTL_EN | ivb_dpfc_ctl(fbc)); } -static bool intel_fbc_hw_is_active(struct drm_i915_private *dev_priv) +static bool ivb_fbc_is_compressing(struct intel_fbc *fbc) { - if (DISPLAY_VER(dev_priv) >= 5) - return ilk_fbc_is_active(dev_priv); - else if (IS_GM45(dev_priv)) - return g4x_fbc_is_active(dev_priv); - else - return i8xx_fbc_is_active(dev_priv); + return intel_de_read(fbc->i915, ILK_DPFC_STATUS2) & DPFC_COMP_SEG_MASK_IVB; } -static void intel_fbc_hw_activate(struct drm_i915_private *dev_priv) +static void ivb_fbc_set_false_color(struct intel_fbc *fbc, + bool enable) { - struct intel_fbc *fbc = &dev_priv->fbc; + intel_de_rmw(fbc->i915, ILK_DPFC_CONTROL, + DPFC_CTL_FALSE_COLOR, enable ? DPFC_CTL_FALSE_COLOR : 0); +} - trace_intel_fbc_activate(fbc->crtc); +static const struct intel_fbc_funcs ivb_fbc_funcs = { + .activate = ivb_fbc_activate, + .deactivate = ilk_fbc_deactivate, + .is_active = ilk_fbc_is_active, + .is_compressing = ivb_fbc_is_compressing, + .nuke = snb_fbc_nuke, + .program_cfb = ilk_fbc_program_cfb, + .set_false_color = ivb_fbc_set_false_color, +}; + +static bool intel_fbc_hw_is_active(struct intel_fbc *fbc) +{ + return fbc->funcs->is_active(fbc); +} + +static void intel_fbc_hw_activate(struct intel_fbc *fbc) +{ + trace_intel_fbc_activate(fbc->state.plane); fbc->active = true; fbc->activated = true; - if (DISPLAY_VER(dev_priv) >= 7) - gen7_fbc_activate(dev_priv); - else if (DISPLAY_VER(dev_priv) >= 5) - ilk_fbc_activate(dev_priv); - else if (IS_GM45(dev_priv)) - g4x_fbc_activate(dev_priv); - else - i8xx_fbc_activate(dev_priv); + fbc->funcs->activate(fbc); } -static void intel_fbc_hw_deactivate(struct drm_i915_private *dev_priv) +static void intel_fbc_hw_deactivate(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; - - trace_intel_fbc_deactivate(fbc->crtc); + trace_intel_fbc_deactivate(fbc->state.plane); fbc->active = false; - if (DISPLAY_VER(dev_priv) >= 5) - ilk_fbc_deactivate(dev_priv); - else if (IS_GM45(dev_priv)) - g4x_fbc_deactivate(dev_priv); - else - i8xx_fbc_deactivate(dev_priv); + fbc->funcs->deactivate(fbc); } -/** - * intel_fbc_is_active - Is FBC active? - * @dev_priv: i915 device instance - * - * This function is used to verify the current state of FBC. - * - * FIXME: This should be tracked in the plane config eventually - * instead of queried at runtime for most callers. - */ -bool intel_fbc_is_active(struct drm_i915_private *dev_priv) +static bool intel_fbc_is_compressing(struct intel_fbc *fbc) +{ + return fbc->funcs->is_compressing(fbc); +} + +static void intel_fbc_nuke(struct intel_fbc *fbc) { - return dev_priv->fbc.active; + trace_intel_fbc_nuke(fbc->state.plane); + + fbc->funcs->nuke(fbc); } -static void intel_fbc_activate(struct drm_i915_private *dev_priv) +static void intel_fbc_activate(struct intel_fbc *fbc) { - intel_fbc_hw_activate(dev_priv); - intel_fbc_recompress(dev_priv); + intel_fbc_hw_activate(fbc); + intel_fbc_nuke(fbc); + + fbc->no_fbc_reason = NULL; } -static void intel_fbc_deactivate(struct drm_i915_private *dev_priv, - const char *reason) +static void intel_fbc_deactivate(struct intel_fbc *fbc, const char *reason) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = fbc->i915; - drm_WARN_ON(&dev_priv->drm, !mutex_is_locked(&fbc->lock)); + drm_WARN_ON(&i915->drm, !mutex_is_locked(&fbc->lock)); if (fbc->active) - intel_fbc_hw_deactivate(dev_priv); + intel_fbc_hw_deactivate(fbc); fbc->no_fbc_reason = reason; } @@ -492,7 +688,7 @@ static u64 intel_fbc_cfb_base_max(struct drm_i915_private *i915) return BIT_ULL(32); } -static u64 intel_fbc_stolen_end(struct drm_i915_private *dev_priv) +static u64 intel_fbc_stolen_end(struct drm_i915_private *i915) { u64 end; @@ -500,24 +696,24 @@ static u64 intel_fbc_stolen_end(struct drm_i915_private *dev_priv) * reserved range size, so it always assumes the maximum (8mb) is used. * If we enable FBC using a CFB on that memory range we'll get FIFO * underruns, even if that range is not reserved by the BIOS. */ - if (IS_BROADWELL(dev_priv) || (DISPLAY_VER(dev_priv) == 9 && - !IS_BROXTON(dev_priv))) - end = resource_size(&dev_priv->dsm) - 8 * 1024 * 1024; + if (IS_BROADWELL(i915) || + (DISPLAY_VER(i915) == 9 && !IS_BROXTON(i915))) + end = resource_size(&i915->dsm) - 8 * 1024 * 1024; else end = U64_MAX; - return min(end, intel_fbc_cfb_base_max(dev_priv)); + return min(end, intel_fbc_cfb_base_max(i915)); } -static int intel_fbc_min_limit(int fb_cpp) +static int intel_fbc_min_limit(const struct intel_plane_state *plane_state) { - return fb_cpp == 2 ? 2 : 1; + return plane_state->hw.fb->format->cpp[0] == 2 ? 2 : 1; } -static int intel_fbc_max_limit(struct drm_i915_private *dev_priv) +static int intel_fbc_max_limit(struct drm_i915_private *i915) { /* WaFbcOnly1to1Ratio:ctg */ - if (IS_G4X(dev_priv)) + if (IS_G4X(i915)) return 1; /* @@ -527,23 +723,23 @@ static int intel_fbc_max_limit(struct drm_i915_private *dev_priv) return 4; } -static int find_compression_limit(struct drm_i915_private *dev_priv, +static int find_compression_limit(struct intel_fbc *fbc, unsigned int size, int min_limit) { - struct intel_fbc *fbc = &dev_priv->fbc; - u64 end = intel_fbc_stolen_end(dev_priv); + struct drm_i915_private *i915 = fbc->i915; + u64 end = intel_fbc_stolen_end(i915); int ret, limit = min_limit; size /= limit; /* Try to over-allocate to reduce reallocations and fragmentation. */ - ret = i915_gem_stolen_insert_node_in_range(dev_priv, &fbc->compressed_fb, + ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb, size <<= 1, 4096, 0, end); if (ret == 0) return limit; - for (; limit <= intel_fbc_max_limit(dev_priv); limit <<= 1) { - ret = i915_gem_stolen_insert_node_in_range(dev_priv, &fbc->compressed_fb, + for (; limit <= intel_fbc_max_limit(i915); limit <<= 1) { + ret = i915_gem_stolen_insert_node_in_range(i915, &fbc->compressed_fb, size >>= 1, 4096, 0, end); if (ret == 0) return limit; @@ -552,34 +748,34 @@ static int find_compression_limit(struct drm_i915_private *dev_priv, return 0; } -static int intel_fbc_alloc_cfb(struct drm_i915_private *dev_priv, +static int intel_fbc_alloc_cfb(struct intel_fbc *fbc, unsigned int size, int min_limit) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = fbc->i915; int ret; - drm_WARN_ON(&dev_priv->drm, + drm_WARN_ON(&i915->drm, drm_mm_node_allocated(&fbc->compressed_fb)); - drm_WARN_ON(&dev_priv->drm, + drm_WARN_ON(&i915->drm, drm_mm_node_allocated(&fbc->compressed_llb)); - if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv)) { - ret = i915_gem_stolen_insert_node(dev_priv, &fbc->compressed_llb, + if (DISPLAY_VER(i915) < 5 && !IS_G4X(i915)) { + ret = i915_gem_stolen_insert_node(i915, &fbc->compressed_llb, 4096, 4096); if (ret) goto err; } - ret = find_compression_limit(dev_priv, size, min_limit); + ret = find_compression_limit(fbc, size, min_limit); if (!ret) goto err_llb; else if (ret > min_limit) - drm_info_once(&dev_priv->drm, + drm_info_once(&i915->drm, "Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS.\n"); fbc->limit = ret; - drm_dbg_kms(&dev_priv->drm, + drm_dbg_kms(&i915->drm, "reserved %llu bytes of contiguous stolen space for FBC, limit: %d\n", fbc->compressed_fb.size, fbc->limit); @@ -587,83 +783,69 @@ static int intel_fbc_alloc_cfb(struct drm_i915_private *dev_priv, err_llb: if (drm_mm_node_allocated(&fbc->compressed_llb)) - i915_gem_stolen_remove_node(dev_priv, &fbc->compressed_llb); + i915_gem_stolen_remove_node(i915, &fbc->compressed_llb); err: - if (drm_mm_initialized(&dev_priv->mm.stolen)) - drm_info_once(&dev_priv->drm, "not enough stolen space for compressed buffer (need %d more bytes), disabling. Hint: you may be able to increase stolen memory size in the BIOS to avoid this.\n", size); + if (drm_mm_initialized(&i915->mm.stolen)) + drm_info_once(&i915->drm, "not enough stolen space for compressed buffer (need %d more bytes), disabling. Hint: you may be able to increase stolen memory size in the BIOS to avoid this.\n", size); return -ENOSPC; } -static void intel_fbc_program_cfb(struct drm_i915_private *dev_priv) +static void intel_fbc_program_cfb(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; - - if (DISPLAY_VER(dev_priv) >= 5) { - intel_de_write(dev_priv, ILK_DPFC_CB_BASE, - fbc->compressed_fb.start); - } else if (IS_GM45(dev_priv)) { - intel_de_write(dev_priv, DPFC_CB_BASE, - fbc->compressed_fb.start); - } else { - GEM_BUG_ON(range_overflows_end_t(u64, dev_priv->dsm.start, - fbc->compressed_fb.start, - U32_MAX)); - GEM_BUG_ON(range_overflows_end_t(u64, dev_priv->dsm.start, - fbc->compressed_llb.start, - U32_MAX)); - - intel_de_write(dev_priv, FBC_CFB_BASE, - dev_priv->dsm.start + fbc->compressed_fb.start); - intel_de_write(dev_priv, FBC_LL_BASE, - dev_priv->dsm.start + fbc->compressed_llb.start); - } + fbc->funcs->program_cfb(fbc); } -static void __intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv) +static void __intel_fbc_cleanup_cfb(struct intel_fbc *fbc) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = fbc->i915; - if (WARN_ON(intel_fbc_hw_is_active(dev_priv))) + if (WARN_ON(intel_fbc_hw_is_active(fbc))) return; if (drm_mm_node_allocated(&fbc->compressed_llb)) - i915_gem_stolen_remove_node(dev_priv, &fbc->compressed_llb); + i915_gem_stolen_remove_node(i915, &fbc->compressed_llb); if (drm_mm_node_allocated(&fbc->compressed_fb)) - i915_gem_stolen_remove_node(dev_priv, &fbc->compressed_fb); + i915_gem_stolen_remove_node(i915, &fbc->compressed_fb); } -void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv) +void intel_fbc_cleanup(struct drm_i915_private *i915) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = i915->fbc; - if (!HAS_FBC(dev_priv)) + if (!fbc) return; mutex_lock(&fbc->lock); - __intel_fbc_cleanup_cfb(dev_priv); + __intel_fbc_cleanup_cfb(fbc); mutex_unlock(&fbc->lock); + + kfree(fbc); } -static bool stride_is_valid(struct drm_i915_private *dev_priv, - u64 modifier, unsigned int stride) +static bool stride_is_valid(const struct intel_plane_state *plane_state) { + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + const struct drm_framebuffer *fb = plane_state->hw.fb; + unsigned int stride = intel_fbc_plane_stride(plane_state) * + fb->format->cpp[0]; + /* This should have been caught earlier. */ - if (drm_WARN_ON_ONCE(&dev_priv->drm, (stride & (64 - 1)) != 0)) + if (drm_WARN_ON_ONCE(&i915->drm, (stride & (64 - 1)) != 0)) return false; /* Below are the additional FBC restrictions. */ if (stride < 512) return false; - if (DISPLAY_VER(dev_priv) == 2 || DISPLAY_VER(dev_priv) == 3) + if (DISPLAY_VER(i915) == 2 || DISPLAY_VER(i915) == 3) return stride == 4096 || stride == 8192; - if (DISPLAY_VER(dev_priv) == 4 && !IS_G4X(dev_priv) && stride < 2048) + if (DISPLAY_VER(i915) == 4 && !IS_G4X(i915) && stride < 2048) return false; /* Display WA #1105: skl,bxt,kbl,cfl,glk */ - if ((DISPLAY_VER(dev_priv) == 9 || IS_GEMINILAKE(dev_priv)) && - modifier == DRM_FORMAT_MOD_LINEAR && stride & 511) + if ((DISPLAY_VER(i915) == 9 || IS_GEMINILAKE(i915)) && + fb->modifier == DRM_FORMAT_MOD_LINEAR && stride & 511) return false; if (stride > 16384) @@ -672,20 +854,22 @@ static bool stride_is_valid(struct drm_i915_private *dev_priv, return true; } -static bool pixel_format_is_valid(struct drm_i915_private *dev_priv, - u32 pixel_format) +static bool pixel_format_is_valid(const struct intel_plane_state *plane_state) { - switch (pixel_format) { + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + const struct drm_framebuffer *fb = plane_state->hw.fb; + + switch (fb->format->format) { case DRM_FORMAT_XRGB8888: case DRM_FORMAT_XBGR8888: return true; case DRM_FORMAT_XRGB1555: case DRM_FORMAT_RGB565: /* 16bpp not supported on gen2 */ - if (DISPLAY_VER(dev_priv) == 2) + if (DISPLAY_VER(i915) == 2) return false; /* WaFbcOnly1to1Ratio:ctg */ - if (IS_G4X(dev_priv)) + if (IS_G4X(i915)) return false; return true; default: @@ -693,13 +877,16 @@ static bool pixel_format_is_valid(struct drm_i915_private *dev_priv, } } -static bool rotation_is_valid(struct drm_i915_private *dev_priv, - u32 pixel_format, unsigned int rotation) +static bool rotation_is_valid(const struct intel_plane_state *plane_state) { - if (DISPLAY_VER(dev_priv) >= 9 && pixel_format == DRM_FORMAT_RGB565 && + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + const struct drm_framebuffer *fb = plane_state->hw.fb; + unsigned int rotation = plane_state->hw.rotation; + + if (DISPLAY_VER(i915) >= 9 && fb->format->format == DRM_FORMAT_RGB565 && drm_rotation_90_or_270(rotation)) return false; - else if (DISPLAY_VER(dev_priv) <= 4 && !IS_G4X(dev_priv) && + else if (DISPLAY_VER(i915) <= 4 && !IS_G4X(i915) && rotation != DRM_MODE_ROTATE_0) return false; @@ -712,19 +899,18 @@ static bool rotation_is_valid(struct drm_i915_private *dev_priv, * the X and Y offset registers. That's why we include the src x/y offsets * instead of just looking at the plane size. */ -static bool intel_fbc_hw_tracking_covers_screen(struct intel_crtc *crtc) +static bool intel_fbc_hw_tracking_covers_screen(const struct intel_plane_state *plane_state) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); unsigned int effective_w, effective_h, max_w, max_h; - if (DISPLAY_VER(dev_priv) >= 10) { + if (DISPLAY_VER(i915) >= 10) { max_w = 5120; max_h = 4096; - } else if (DISPLAY_VER(dev_priv) >= 8 || IS_HASWELL(dev_priv)) { + } else if (DISPLAY_VER(i915) >= 8 || IS_HASWELL(i915)) { max_w = 4096; max_h = 4096; - } else if (IS_G4X(dev_priv) || DISPLAY_VER(dev_priv) >= 5) { + } else if (IS_G4X(i915) || DISPLAY_VER(i915) >= 5) { max_w = 4096; max_h = 2048; } else { @@ -732,22 +918,24 @@ static bool intel_fbc_hw_tracking_covers_screen(struct intel_crtc *crtc) max_h = 1536; } - intel_fbc_get_plane_source_size(&fbc->state_cache, &effective_w, - &effective_h); - effective_w += fbc->state_cache.plane.adjusted_x; - effective_h += fbc->state_cache.plane.adjusted_y; + effective_w = plane_state->view.color_plane[0].x + + (drm_rect_width(&plane_state->uapi.src) >> 16); + effective_h = plane_state->view.color_plane[0].y + + (drm_rect_height(&plane_state->uapi.src) >> 16); return effective_w <= max_w && effective_h <= max_h; } -static bool tiling_is_valid(struct drm_i915_private *dev_priv, - u64 modifier) +static bool tiling_is_valid(const struct intel_plane_state *plane_state) { - switch (modifier) { + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); + const struct drm_framebuffer *fb = plane_state->hw.fb; + + switch (fb->modifier) { case DRM_FORMAT_MOD_LINEAR: case I915_FORMAT_MOD_Y_TILED: case I915_FORMAT_MOD_Yf_TILED: - return DISPLAY_VER(dev_priv) >= 9; + return DISPLAY_VER(i915) >= 9; case I915_FORMAT_MOD_X_TILED: return true; default: @@ -755,210 +943,163 @@ static bool tiling_is_valid(struct drm_i915_private *dev_priv, } } -static void intel_fbc_update_state_cache(struct intel_crtc *crtc, - const struct intel_crtc_state *crtc_state, - const struct intel_plane_state *plane_state) +static void intel_fbc_update_state(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_plane *plane) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_fbc_state_cache *cache = &fbc->state_cache; - struct drm_framebuffer *fb = plane_state->hw.fb; - - cache->plane.visible = plane_state->uapi.visible; - if (!cache->plane.visible) - return; - - cache->crtc.mode_flags = crtc_state->hw.adjusted_mode.flags; - if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) - cache->crtc.hsw_bdw_pixel_rate = crtc_state->pixel_rate; - - cache->plane.rotation = plane_state->hw.rotation; - /* - * Src coordinates are already rotated by 270 degrees for - * the 90/270 degree plane rotation cases (to match the - * GTT mapping), hence no need to account for rotation here. - */ - cache->plane.src_w = drm_rect_width(&plane_state->uapi.src) >> 16; - cache->plane.src_h = drm_rect_height(&plane_state->uapi.src) >> 16; - cache->plane.adjusted_x = plane_state->view.color_plane[0].x; - cache->plane.adjusted_y = plane_state->view.color_plane[0].y; + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_plane_state *plane_state = + intel_atomic_get_new_plane_state(state, plane); + struct intel_fbc *fbc = plane->fbc; + struct intel_fbc_state *fbc_state = &fbc->state; - cache->plane.pixel_blend_mode = plane_state->hw.pixel_blend_mode; + WARN_ON(plane_state->no_fbc_reason); - cache->fb.format = fb->format; - cache->fb.modifier = fb->modifier; - cache->fb.stride = intel_fbc_plane_stride(plane_state); + fbc_state->plane = plane; /* FBC1 compression interval: arbitrary choice of 1 second */ - cache->interval = drm_mode_vrefresh(&crtc_state->hw.adjusted_mode); + fbc_state->interval = drm_mode_vrefresh(&crtc_state->hw.adjusted_mode); - cache->fence_y_offset = intel_plane_fence_y_offset(plane_state); + fbc_state->fence_y_offset = intel_plane_fence_y_offset(plane_state); - drm_WARN_ON(&dev_priv->drm, plane_state->flags & PLANE_HAS_FENCE && + drm_WARN_ON(&i915->drm, plane_state->flags & PLANE_HAS_FENCE && !plane_state->ggtt_vma->fence); if (plane_state->flags & PLANE_HAS_FENCE && plane_state->ggtt_vma->fence) - cache->fence_id = plane_state->ggtt_vma->fence->id; + fbc_state->fence_id = plane_state->ggtt_vma->fence->id; else - cache->fence_id = -1; + fbc_state->fence_id = -1; - cache->psr2_active = crtc_state->has_psr2; + fbc_state->cfb_stride = intel_fbc_cfb_stride(plane_state); + fbc_state->cfb_size = intel_fbc_cfb_size(plane_state); + fbc_state->override_cfb_stride = intel_fbc_override_cfb_stride(plane_state); } -static bool intel_fbc_cfb_size_changed(struct drm_i915_private *dev_priv) +static bool intel_fbc_is_fence_ok(const struct intel_plane_state *plane_state) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev); - return intel_fbc_cfb_size(dev_priv, &fbc->state_cache) > - fbc->compressed_fb.size * fbc->limit; -} - -static u16 intel_fbc_override_cfb_stride(struct drm_i915_private *dev_priv, - const struct intel_fbc_state_cache *cache) -{ - unsigned int stride = _intel_fbc_cfb_stride(cache); - unsigned int stride_aligned = intel_fbc_cfb_stride(dev_priv, cache); - - /* - * Override stride in 64 byte units per 4 line segment. + /* The use of a CPU fence is one of two ways to detect writes by the + * CPU to the scanout and trigger updates to the FBC. * - * Gen9 hw miscalculates cfb stride for linear as - * PLANE_STRIDE*512 instead of PLANE_STRIDE*64, so - * we always need to use the override there. + * The other method is by software tracking (see + * intel_fbc_invalidate/flush()), it will manually notify FBC and nuke + * the current compressed buffer and recompress it. + * + * Note that is possible for a tiled surface to be unmappable (and + * so have no fence associated with it) due to aperture constraints + * at the time of pinning. + * + * FIXME with 90/270 degree rotation we should use the fence on + * the normal GTT view (the rotated view doesn't even have a + * fence). Would need changes to the FBC fence Y offset as well. + * For now this will effectively disable FBC with 90/270 degree + * rotation. */ - if (stride != stride_aligned || - (DISPLAY_VER(dev_priv) == 9 && - cache->fb.modifier == DRM_FORMAT_MOD_LINEAR)) - return stride_aligned * 4 / 64; - - return 0; + return DISPLAY_VER(i915) >= 9 || + (plane_state->flags & PLANE_HAS_FENCE && + plane_state->ggtt_vma->fence); } -static bool intel_fbc_can_enable(struct drm_i915_private *dev_priv) +static bool intel_fbc_is_cfb_ok(const struct intel_plane_state *plane_state) { - struct intel_fbc *fbc = &dev_priv->fbc; - - if (intel_vgpu_active(dev_priv)) { - fbc->no_fbc_reason = "VGPU is active"; - return false; - } - - if (!dev_priv->params.enable_fbc) { - fbc->no_fbc_reason = "disabled per module param or by default"; - return false; - } + struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); + struct intel_fbc *fbc = plane->fbc; - if (fbc->underrun_detected) { - fbc->no_fbc_reason = "underrun detected"; - return false; - } + return intel_fbc_min_limit(plane_state) <= fbc->limit && + intel_fbc_cfb_size(plane_state) <= fbc->compressed_fb.size * fbc->limit; +} - return true; +static bool intel_fbc_is_ok(const struct intel_plane_state *plane_state) +{ + return !plane_state->no_fbc_reason && + intel_fbc_is_fence_ok(plane_state) && + intel_fbc_is_cfb_ok(plane_state); } -static bool intel_fbc_can_activate(struct intel_crtc *crtc) +static int intel_fbc_check_plane(struct intel_atomic_state *state, + struct intel_plane *plane) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_fbc_state_cache *cache = &fbc->state_cache; + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_plane_state *plane_state = + intel_atomic_get_new_plane_state(state, plane); + const struct drm_framebuffer *fb = plane_state->hw.fb; + struct intel_crtc *crtc = to_intel_crtc(plane_state->uapi.crtc); + const struct intel_crtc_state *crtc_state; + struct intel_fbc *fbc = plane->fbc; - if (!intel_fbc_can_enable(dev_priv)) - return false; + if (!fbc) + return 0; - if (!cache->plane.visible) { - fbc->no_fbc_reason = "primary plane not visible"; - return false; + if (intel_vgpu_active(i915)) { + plane_state->no_fbc_reason = "VGPU active"; + return 0; } - /* We don't need to use a state cache here since this information is - * global for all CRTC. - */ - if (fbc->underrun_detected) { - fbc->no_fbc_reason = "underrun detected"; - return false; + if (!i915->params.enable_fbc) { + plane_state->no_fbc_reason = "disabled per module param or by default"; + return 0; } - if (cache->crtc.mode_flags & DRM_MODE_FLAG_INTERLACE) { - fbc->no_fbc_reason = "incompatible mode"; - return false; + if (!plane_state->uapi.visible) { + plane_state->no_fbc_reason = "plane not visible"; + return 0; } - if (!intel_fbc_hw_tracking_covers_screen(crtc)) { - fbc->no_fbc_reason = "mode too large for compression"; - return false; + crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + + if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { + plane_state->no_fbc_reason = "interlaced mode not supported"; + return 0; } - /* The use of a CPU fence is one of two ways to detect writes by the - * CPU to the scanout and trigger updates to the FBC. - * - * The other method is by software tracking (see - * intel_fbc_invalidate/flush()), it will manually notify FBC and nuke - * the current compressed buffer and recompress it. - * - * Note that is possible for a tiled surface to be unmappable (and - * so have no fence associated with it) due to aperture constraints - * at the time of pinning. - * - * FIXME with 90/270 degree rotation we should use the fence on - * the normal GTT view (the rotated view doesn't even have a - * fence). Would need changes to the FBC fence Y offset as well. - * For now this will effectively disable FBC with 90/270 degree - * rotation. - */ - if (DISPLAY_VER(dev_priv) < 9 && cache->fence_id < 0) { - fbc->no_fbc_reason = "framebuffer not tiled or fenced"; - return false; + if (crtc_state->double_wide) { + plane_state->no_fbc_reason = "double wide pipe not supported"; + return 0; } - if (!pixel_format_is_valid(dev_priv, cache->fb.format->format)) { - fbc->no_fbc_reason = "pixel format is invalid"; + /* + * Display 12+ is not supporting FBC with PSR2. + * Recommendation is to keep this combination disabled + * Bspec: 50422 HSD: 14010260002 + */ + if (DISPLAY_VER(i915) >= 12 && crtc_state->has_psr2) { + plane_state->no_fbc_reason = "PSR2 enabled"; return false; } - if (!rotation_is_valid(dev_priv, cache->fb.format->format, - cache->plane.rotation)) { - fbc->no_fbc_reason = "rotation unsupported"; - return false; + if (!pixel_format_is_valid(plane_state)) { + plane_state->no_fbc_reason = "pixel format not supported"; + return 0; } - if (!tiling_is_valid(dev_priv, cache->fb.modifier)) { - fbc->no_fbc_reason = "tiling unsupported"; - return false; + if (!tiling_is_valid(plane_state)) { + plane_state->no_fbc_reason = "tiling not supported"; + return 0; } - if (!stride_is_valid(dev_priv, cache->fb.modifier, - cache->fb.stride * cache->fb.format->cpp[0])) { - fbc->no_fbc_reason = "framebuffer stride not supported"; - return false; + if (!rotation_is_valid(plane_state)) { + plane_state->no_fbc_reason = "rotation not supported"; + return 0; } - if (cache->plane.pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE && - cache->fb.format->has_alpha) { - fbc->no_fbc_reason = "per-pixel alpha blending is incompatible with FBC"; - return false; + if (!stride_is_valid(plane_state)) { + plane_state->no_fbc_reason = "stride not supported"; + return 0; } - /* WaFbcExceedCdClockThreshold:hsw,bdw */ - if ((IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) && - cache->crtc.hsw_bdw_pixel_rate >= dev_priv->cdclk.hw.cdclk * 95 / 100) { - fbc->no_fbc_reason = "pixel rate is too big"; + if (plane_state->hw.pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE && + fb->format->has_alpha) { + plane_state->no_fbc_reason = "per-pixel alpha not supported"; return false; } - /* It is possible for the required CFB size change without a - * crtc->disable + crtc->enable since it is possible to change the - * stride without triggering a full modeset. Since we try to - * over-allocate the CFB, there's a chance we may keep FBC enabled even - * if this happens, but if we exceed the current CFB size we'll have to - * disable FBC. Notice that it would be possible to disable FBC, wait - * for a frame, free the stolen node, then try to reenable FBC in case - * we didn't get any invalidate/deactivate calls, but this would require - * a lot of tracking just for a specific case. If we conclude it's an - * important case, we can implement it later. */ - if (intel_fbc_cfb_size_changed(dev_priv)) { - fbc->no_fbc_reason = "CFB requirements changed"; - return false; + if (!intel_fbc_hw_tracking_covers_screen(plane_state)) { + plane_state->no_fbc_reason = "plane size too big"; + return 0; } /* @@ -966,238 +1107,211 @@ static bool intel_fbc_can_activate(struct intel_crtc *crtc) * having a Y offset that isn't divisible by 4 causes FIFO underrun * and screen flicker. */ - if (DISPLAY_VER(dev_priv) >= 9 && - (fbc->state_cache.plane.adjusted_y & 3)) { - fbc->no_fbc_reason = "plane Y offset is misaligned"; + if (DISPLAY_VER(i915) >= 9 && + plane_state->view.color_plane[0].y & 3) { + plane_state->no_fbc_reason = "plane start Y offset misaligned"; return false; } /* Wa_22010751166: icl, ehl, tgl, dg1, rkl */ - if (DISPLAY_VER(dev_priv) >= 11 && - (cache->plane.src_h + cache->plane.adjusted_y) % 4) { - fbc->no_fbc_reason = "plane height + offset is non-modulo of 4"; - return false; - } - - /* - * Display 12+ is not supporting FBC with PSR2. - * Recommendation is to keep this combination disabled - * Bspec: 50422 HSD: 14010260002 - */ - if (fbc->state_cache.psr2_active && DISPLAY_VER(dev_priv) >= 12) { - fbc->no_fbc_reason = "not supported with PSR2"; + if (DISPLAY_VER(i915) >= 11 && + (plane_state->view.color_plane[0].y + drm_rect_height(&plane_state->uapi.src)) & 3) { + plane_state->no_fbc_reason = "plane end Y offset misaligned"; return false; } - return true; -} - -static void intel_fbc_get_reg_params(struct intel_crtc *crtc, - struct intel_fbc_reg_params *params) -{ - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_fbc_state_cache *cache = &fbc->state_cache; - - /* Since all our fields are integer types, use memset here so the - * comparison function can rely on memcmp because the padding will be - * zero. */ - memset(params, 0, sizeof(*params)); - - params->fence_id = cache->fence_id; - params->fence_y_offset = cache->fence_y_offset; - - params->interval = cache->interval; + /* WaFbcExceedCdClockThreshold:hsw,bdw */ + if (IS_HASWELL(i915) || IS_BROADWELL(i915)) { + const struct intel_cdclk_state *cdclk_state; - params->crtc.pipe = crtc->pipe; - params->crtc.i9xx_plane = to_intel_plane(crtc->base.primary)->i9xx_plane; + cdclk_state = intel_atomic_get_cdclk_state(state); + if (IS_ERR(cdclk_state)) + return PTR_ERR(cdclk_state); - params->fb.format = cache->fb.format; - params->fb.modifier = cache->fb.modifier; - params->fb.stride = cache->fb.stride; + if (crtc_state->pixel_rate >= cdclk_state->logical.cdclk * 95 / 100) { + plane_state->no_fbc_reason = "pixel rate too high"; + return 0; + } + } - params->cfb_stride = intel_fbc_cfb_stride(dev_priv, cache); - params->cfb_size = intel_fbc_cfb_size(dev_priv, cache); - params->override_cfb_stride = intel_fbc_override_cfb_stride(dev_priv, cache); + plane_state->no_fbc_reason = NULL; - params->plane_visible = cache->plane.visible; + return 0; } -static bool intel_fbc_can_flip_nuke(const struct intel_crtc_state *crtc_state) -{ - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - const struct intel_fbc *fbc = &dev_priv->fbc; - const struct intel_fbc_state_cache *cache = &fbc->state_cache; - const struct intel_fbc_reg_params *params = &fbc->params; - if (drm_atomic_crtc_needs_modeset(&crtc_state->uapi)) - return false; +static bool intel_fbc_can_flip_nuke(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_plane *plane) +{ + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_plane_state *old_plane_state = + intel_atomic_get_old_plane_state(state, plane); + const struct intel_plane_state *new_plane_state = + intel_atomic_get_new_plane_state(state, plane); + const struct drm_framebuffer *old_fb = old_plane_state->hw.fb; + const struct drm_framebuffer *new_fb = new_plane_state->hw.fb; - if (!params->plane_visible) + if (drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi)) return false; - if (!intel_fbc_can_activate(crtc)) + if (!intel_fbc_is_ok(old_plane_state) || + !intel_fbc_is_ok(new_plane_state)) return false; - if (params->fb.format != cache->fb.format) + if (old_fb->format->format != new_fb->format->format) return false; - if (params->fb.modifier != cache->fb.modifier) + if (old_fb->modifier != new_fb->modifier) return false; - if (params->fb.stride != cache->fb.stride) + if (intel_fbc_plane_stride(old_plane_state) != + intel_fbc_plane_stride(new_plane_state)) return false; - if (params->cfb_stride != intel_fbc_cfb_stride(dev_priv, cache)) + if (intel_fbc_cfb_stride(old_plane_state) != + intel_fbc_cfb_stride(new_plane_state)) return false; - if (params->cfb_size != intel_fbc_cfb_size(dev_priv, cache)) + if (intel_fbc_cfb_size(old_plane_state) != + intel_fbc_cfb_size(new_plane_state)) return false; - if (params->override_cfb_stride != intel_fbc_override_cfb_stride(dev_priv, cache)) + if (intel_fbc_override_cfb_stride(old_plane_state) != + intel_fbc_override_cfb_stride(new_plane_state)) return false; return true; } -bool intel_fbc_pre_update(struct intel_atomic_state *state, - struct intel_crtc *crtc) +static bool __intel_fbc_pre_update(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_plane *plane) { - struct intel_plane *plane = to_intel_plane(crtc->base.primary); - const struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - const struct intel_plane_state *plane_state = - intel_atomic_get_new_plane_state(state, plane); - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; - const char *reason = "update pending"; + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_fbc *fbc = plane->fbc; bool need_vblank_wait = false; - if (!plane->has_fbc || !plane_state) - return need_vblank_wait; - - mutex_lock(&fbc->lock); + fbc->flip_pending = true; - if (fbc->crtc != crtc) - goto unlock; + if (intel_fbc_can_flip_nuke(state, crtc, plane)) + return need_vblank_wait; - intel_fbc_update_state_cache(crtc, crtc_state, plane_state); - fbc->flip_pending = true; + intel_fbc_deactivate(fbc, "update pending"); - if (!intel_fbc_can_flip_nuke(crtc_state)) { - intel_fbc_deactivate(dev_priv, reason); - - /* - * Display WA #1198: glk+ - * Need an extra vblank wait between FBC disable and most plane - * updates. Bspec says this is only needed for plane disable, but - * that is not true. Touching most plane registers will cause the - * corruption to appear. Also SKL/derivatives do not seem to be - * affected. - * - * TODO: could optimize this a bit by sampling the frame - * counter when we disable FBC (if it was already done earlier) - * and skipping the extra vblank wait before the plane update - * if at least one frame has already passed. - */ - if (fbc->activated && - DISPLAY_VER(dev_priv) >= 10) - need_vblank_wait = true; - fbc->activated = false; - } -unlock: - mutex_unlock(&fbc->lock); + /* + * Display WA #1198: glk+ + * Need an extra vblank wait between FBC disable and most plane + * updates. Bspec says this is only needed for plane disable, but + * that is not true. Touching most plane registers will cause the + * corruption to appear. Also SKL/derivatives do not seem to be + * affected. + * + * TODO: could optimize this a bit by sampling the frame + * counter when we disable FBC (if it was already done earlier) + * and skipping the extra vblank wait before the plane update + * if at least one frame has already passed. + */ + if (fbc->activated && DISPLAY_VER(i915) >= 10) + need_vblank_wait = true; + fbc->activated = false; return need_vblank_wait; } -/** - * __intel_fbc_disable - disable FBC - * @dev_priv: i915 device instance - * - * This is the low level function that actually disables FBC. Callers should - * grab the FBC lock. - */ -static void __intel_fbc_disable(struct drm_i915_private *dev_priv) +bool intel_fbc_pre_update(struct intel_atomic_state *state, + struct intel_crtc *crtc) { - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_crtc *crtc = fbc->crtc; + const struct intel_plane_state *plane_state; + bool need_vblank_wait = false; + struct intel_plane *plane; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + struct intel_fbc *fbc = plane->fbc; - drm_WARN_ON(&dev_priv->drm, !mutex_is_locked(&fbc->lock)); - drm_WARN_ON(&dev_priv->drm, !fbc->crtc); - drm_WARN_ON(&dev_priv->drm, fbc->active); + if (!fbc || plane->pipe != crtc->pipe) + continue; - drm_dbg_kms(&dev_priv->drm, "Disabling FBC on pipe %c\n", - pipe_name(crtc->pipe)); + mutex_lock(&fbc->lock); - __intel_fbc_cleanup_cfb(dev_priv); + if (fbc->state.plane == plane) + need_vblank_wait |= __intel_fbc_pre_update(state, crtc, plane); - fbc->crtc = NULL; + mutex_unlock(&fbc->lock); + } + + return need_vblank_wait; } -static void __intel_fbc_post_update(struct intel_crtc *crtc) +static void __intel_fbc_disable(struct intel_fbc *fbc) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_fbc *fbc = &dev_priv->fbc; - - drm_WARN_ON(&dev_priv->drm, !mutex_is_locked(&fbc->lock)); + struct drm_i915_private *i915 = fbc->i915; + struct intel_plane *plane = fbc->state.plane; - if (fbc->crtc != crtc) - return; + drm_WARN_ON(&i915->drm, !mutex_is_locked(&fbc->lock)); + drm_WARN_ON(&i915->drm, fbc->active); - fbc->flip_pending = false; + drm_dbg_kms(&i915->drm, "Disabling FBC on [PLANE:%d:%s]\n", + plane->base.base.id, plane->base.name); - if (!dev_priv->params.enable_fbc) { - intel_fbc_deactivate(dev_priv, "disabled at runtime per module param"); - __intel_fbc_disable(dev_priv); + __intel_fbc_cleanup_cfb(fbc); - return; - } + fbc->state.plane = NULL; +} - intel_fbc_get_reg_params(crtc, &fbc->params); +static void __intel_fbc_post_update(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; - if (!intel_fbc_can_activate(crtc)) - return; + drm_WARN_ON(&i915->drm, !mutex_is_locked(&fbc->lock)); if (!fbc->busy_bits) - intel_fbc_activate(dev_priv); + intel_fbc_activate(fbc); else - intel_fbc_deactivate(dev_priv, "frontbuffer write"); + intel_fbc_deactivate(fbc, "frontbuffer write"); } void intel_fbc_post_update(struct intel_atomic_state *state, struct intel_crtc *crtc) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_plane *plane = to_intel_plane(crtc->base.primary); - const struct intel_plane_state *plane_state = - intel_atomic_get_new_plane_state(state, plane); - struct intel_fbc *fbc = &dev_priv->fbc; + const struct intel_plane_state *plane_state; + struct intel_plane *plane; + int i; - if (!plane->has_fbc || !plane_state) - return; + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + struct intel_fbc *fbc = plane->fbc; - mutex_lock(&fbc->lock); - __intel_fbc_post_update(crtc); - mutex_unlock(&fbc->lock); + if (!fbc || plane->pipe != crtc->pipe) + continue; + + mutex_lock(&fbc->lock); + + if (fbc->state.plane == plane) { + fbc->flip_pending = false; + __intel_fbc_post_update(fbc); + } + + mutex_unlock(&fbc->lock); + } } static unsigned int intel_fbc_get_frontbuffer_bit(struct intel_fbc *fbc) { - if (fbc->crtc) - return to_intel_plane(fbc->crtc->base.primary)->frontbuffer_bit; + if (fbc->state.plane) + return fbc->state.plane->frontbuffer_bit; else return fbc->possible_framebuffer_bits; } -void intel_fbc_invalidate(struct drm_i915_private *dev_priv, +void intel_fbc_invalidate(struct drm_i915_private *i915, unsigned int frontbuffer_bits, enum fb_op_origin origin) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = i915->fbc; - if (!HAS_FBC(dev_priv)) + if (!fbc) return; if (origin == ORIGIN_FLIP || origin == ORIGIN_CURSOR_UPDATE) @@ -1207,18 +1321,18 @@ void intel_fbc_invalidate(struct drm_i915_private *dev_priv, fbc->busy_bits |= intel_fbc_get_frontbuffer_bit(fbc) & frontbuffer_bits; - if (fbc->crtc && fbc->busy_bits) - intel_fbc_deactivate(dev_priv, "frontbuffer write"); + if (fbc->state.plane && fbc->busy_bits) + intel_fbc_deactivate(fbc, "frontbuffer write"); mutex_unlock(&fbc->lock); } -void intel_fbc_flush(struct drm_i915_private *dev_priv, +void intel_fbc_flush(struct drm_i915_private *i915, unsigned int frontbuffer_bits, enum fb_op_origin origin) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = i915->fbc; - if (!HAS_FBC(dev_priv)) + if (!fbc) return; mutex_lock(&fbc->lock); @@ -1228,143 +1342,83 @@ void intel_fbc_flush(struct drm_i915_private *dev_priv, if (origin == ORIGIN_FLIP || origin == ORIGIN_CURSOR_UPDATE) goto out; - if (!fbc->busy_bits && fbc->crtc && + if (!fbc->busy_bits && fbc->state.plane && (frontbuffer_bits & intel_fbc_get_frontbuffer_bit(fbc))) { if (fbc->active) - intel_fbc_recompress(dev_priv); + intel_fbc_nuke(fbc); else if (!fbc->flip_pending) - __intel_fbc_post_update(fbc->crtc); + __intel_fbc_post_update(fbc); } out: mutex_unlock(&fbc->lock); } -/** - * intel_fbc_choose_crtc - select a CRTC to enable FBC on - * @dev_priv: i915 device instance - * @state: the atomic state structure - * - * This function looks at the proposed state for CRTCs and planes, then chooses - * which pipe is going to have FBC by setting intel_crtc_state->enable_fbc to - * true. - * - * Later, intel_fbc_enable is going to look for state->enable_fbc and then maybe - * enable FBC for the chosen CRTC. If it does, it will set dev_priv->fbc.crtc. - */ -void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv, - struct intel_atomic_state *state) +int intel_fbc_atomic_check(struct intel_atomic_state *state) { - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_plane *plane; struct intel_plane_state *plane_state; - bool crtc_chosen = false; + struct intel_plane *plane; int i; - mutex_lock(&fbc->lock); - - /* Does this atomic commit involve the CRTC currently tied to FBC? */ - if (fbc->crtc && - !intel_atomic_get_new_crtc_state(state, fbc->crtc)) - goto out; - - if (!intel_fbc_can_enable(dev_priv)) - goto out; - - /* Simply choose the first CRTC that is compatible and has a visible - * plane. We could go for fancier schemes such as checking the plane - * size, but this would just affect the few platforms that don't tie FBC - * to pipe or plane A. */ for_each_new_intel_plane_in_state(state, plane, plane_state, i) { - struct intel_crtc_state *crtc_state; - struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc); - - if (!plane->has_fbc) - continue; + int ret; - if (!plane_state->uapi.visible) - continue; - - crtc_state = intel_atomic_get_new_crtc_state(state, crtc); - - crtc_state->enable_fbc = true; - crtc_chosen = true; - break; + ret = intel_fbc_check_plane(state, plane); + if (ret) + return ret; } - if (!crtc_chosen) - fbc->no_fbc_reason = "no suitable CRTC for FBC"; - -out: - mutex_unlock(&fbc->lock); + return 0; } -/** - * intel_fbc_enable: tries to enable FBC on the CRTC - * @crtc: the CRTC - * @state: corresponding &drm_crtc_state for @crtc - * - * This function checks if the given CRTC was chosen for FBC, then enables it if - * possible. Notice that it doesn't activate FBC. It is valid to call - * intel_fbc_enable multiple times for the same pipe without an - * intel_fbc_disable in the middle, as long as it is deactivated. - */ -static void intel_fbc_enable(struct intel_atomic_state *state, - struct intel_crtc *crtc) +static void __intel_fbc_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_plane *plane) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_plane *plane = to_intel_plane(crtc->base.primary); - const struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *i915 = to_i915(state->base.dev); const struct intel_plane_state *plane_state = intel_atomic_get_new_plane_state(state, plane); - struct intel_fbc *fbc = &dev_priv->fbc; - struct intel_fbc_state_cache *cache = &fbc->state_cache; - int min_limit; + struct intel_fbc *fbc = plane->fbc; - if (!plane->has_fbc || !plane_state) - return; + if (fbc->state.plane) { + if (fbc->state.plane != plane) + return; - min_limit = intel_fbc_min_limit(plane_state->hw.fb ? - plane_state->hw.fb->format->cpp[0] : 0); + if (intel_fbc_is_ok(plane_state)) + return; - mutex_lock(&fbc->lock); + __intel_fbc_disable(fbc); + } - if (fbc->crtc) { - if (fbc->crtc != crtc) - goto out; + drm_WARN_ON(&i915->drm, fbc->active); - if (fbc->limit >= min_limit && - !intel_fbc_cfb_size_changed(dev_priv)) - goto out; + fbc->no_fbc_reason = plane_state->no_fbc_reason; + if (fbc->no_fbc_reason) + return; - __intel_fbc_disable(dev_priv); + if (!intel_fbc_is_fence_ok(plane_state)) { + fbc->no_fbc_reason = "framebuffer not fenced"; + return; } - drm_WARN_ON(&dev_priv->drm, fbc->active); - - intel_fbc_update_state_cache(crtc, crtc_state, plane_state); - - /* FIXME crtc_state->enable_fbc lies :( */ - if (!cache->plane.visible) - goto out; + if (fbc->underrun_detected) { + fbc->no_fbc_reason = "FIFO underrun"; + return; + } - if (intel_fbc_alloc_cfb(dev_priv, - intel_fbc_cfb_size(dev_priv, cache), min_limit)) { - cache->plane.visible = false; + if (intel_fbc_alloc_cfb(fbc, intel_fbc_cfb_size(plane_state), + intel_fbc_min_limit(plane_state))) { fbc->no_fbc_reason = "not enough stolen memory"; - goto out; + return; } - drm_dbg_kms(&dev_priv->drm, "Enabling FBC on pipe %c\n", - pipe_name(crtc->pipe)); + drm_dbg_kms(&i915->drm, "Enabling FBC on [PLANE:%d:%s]\n", + plane->base.base.id, plane->base.name); fbc->no_fbc_reason = "FBC enabled but not active yet\n"; - fbc->crtc = crtc; + intel_fbc_update_state(state, crtc, plane); - intel_fbc_program_cfb(dev_priv); -out: - mutex_unlock(&fbc->lock); + intel_fbc_program_cfb(fbc); } /** @@ -1375,114 +1429,122 @@ out: */ void intel_fbc_disable(struct intel_crtc *crtc) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - struct intel_plane *plane = to_intel_plane(crtc->base.primary); - struct intel_fbc *fbc = &dev_priv->fbc; + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + struct intel_plane *plane; - if (!plane->has_fbc) - return; + for_each_intel_plane(&i915->drm, plane) { + struct intel_fbc *fbc = plane->fbc; - mutex_lock(&fbc->lock); - if (fbc->crtc == crtc) - __intel_fbc_disable(dev_priv); - mutex_unlock(&fbc->lock); + if (!fbc || plane->pipe != crtc->pipe) + continue; + + mutex_lock(&fbc->lock); + if (fbc->state.plane == plane) + __intel_fbc_disable(fbc); + mutex_unlock(&fbc->lock); + } } -/** - * intel_fbc_update: enable/disable FBC on the CRTC - * @state: atomic state - * @crtc: the CRTC - * - * This function checks if the given CRTC was chosen for FBC, then enables it if - * possible. Notice that it doesn't activate FBC. It is valid to call - * intel_fbc_update multiple times for the same pipe without an - * intel_fbc_disable in the middle. - */ void intel_fbc_update(struct intel_atomic_state *state, struct intel_crtc *crtc) { const struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_plane_state *plane_state; + struct intel_plane *plane; + int i; - if (crtc_state->update_pipe && !crtc_state->enable_fbc) - intel_fbc_disable(crtc); - else - intel_fbc_enable(state, crtc); + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + struct intel_fbc *fbc = plane->fbc; + + if (!fbc || plane->pipe != crtc->pipe) + continue; + + mutex_lock(&fbc->lock); + + if (crtc_state->update_pipe && plane_state->no_fbc_reason) { + if (fbc->state.plane == plane) + __intel_fbc_disable(fbc); + } else { + __intel_fbc_enable(state, crtc, plane); + } + + mutex_unlock(&fbc->lock); + } } /** * intel_fbc_global_disable - globally disable FBC - * @dev_priv: i915 device instance + * @i915: i915 device instance * * This function disables FBC regardless of which CRTC is associated with it. */ -void intel_fbc_global_disable(struct drm_i915_private *dev_priv) +void intel_fbc_global_disable(struct drm_i915_private *i915) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = i915->fbc; - if (!HAS_FBC(dev_priv)) + if (!fbc) return; mutex_lock(&fbc->lock); - if (fbc->crtc) { - drm_WARN_ON(&dev_priv->drm, fbc->crtc->active); - __intel_fbc_disable(dev_priv); - } + if (fbc->state.plane) + __intel_fbc_disable(fbc); mutex_unlock(&fbc->lock); } static void intel_fbc_underrun_work_fn(struct work_struct *work) { - struct drm_i915_private *dev_priv = - container_of(work, struct drm_i915_private, fbc.underrun_work); - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = container_of(work, typeof(*fbc), underrun_work); + struct drm_i915_private *i915 = fbc->i915; mutex_lock(&fbc->lock); /* Maybe we were scheduled twice. */ - if (fbc->underrun_detected || !fbc->crtc) + if (fbc->underrun_detected || !fbc->state.plane) goto out; - drm_dbg_kms(&dev_priv->drm, "Disabling FBC due to FIFO underrun.\n"); + drm_dbg_kms(&i915->drm, "Disabling FBC due to FIFO underrun.\n"); fbc->underrun_detected = true; - intel_fbc_deactivate(dev_priv, "FIFO underrun"); + intel_fbc_deactivate(fbc, "FIFO underrun"); + if (!fbc->flip_pending) + intel_crtc_wait_for_next_vblank(intel_crtc_for_pipe(i915, fbc->state.plane->pipe)); + __intel_fbc_disable(fbc); out: mutex_unlock(&fbc->lock); } /* * intel_fbc_reset_underrun - reset FBC fifo underrun status. - * @dev_priv: i915 device instance + * @i915: the i915 device * * See intel_fbc_handle_fifo_underrun_irq(). For automated testing we * want to re-enable FBC after an underrun to increase test coverage. */ -int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv) +void intel_fbc_reset_underrun(struct drm_i915_private *i915) { - int ret; + struct intel_fbc *fbc = i915->fbc; - cancel_work_sync(&dev_priv->fbc.underrun_work); + if (!fbc) + return; - ret = mutex_lock_interruptible(&dev_priv->fbc.lock); - if (ret) - return ret; + cancel_work_sync(&fbc->underrun_work); - if (dev_priv->fbc.underrun_detected) { - drm_dbg_kms(&dev_priv->drm, + mutex_lock(&fbc->lock); + + if (fbc->underrun_detected) { + drm_dbg_kms(&i915->drm, "Re-allowing FBC after fifo underrun\n"); - dev_priv->fbc.no_fbc_reason = "FIFO underrun cleared"; + fbc->no_fbc_reason = "FIFO underrun cleared"; } - dev_priv->fbc.underrun_detected = false; - mutex_unlock(&dev_priv->fbc.lock); - - return 0; + fbc->underrun_detected = false; + mutex_unlock(&fbc->lock); } /** * intel_fbc_handle_fifo_underrun_irq - disable FBC when we get a FIFO underrun - * @dev_priv: i915 device instance + * @i915: i915 device * * Without FBC, most underruns are harmless and don't really cause too many * problems, except for an annoying message on dmesg. With FBC, underruns can @@ -1494,11 +1556,11 @@ int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv) * * This function is called from the IRQ handler. */ -void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv) +void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *i915) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc = i915->fbc; - if (!HAS_FBC(dev_priv)) + if (!fbc) return; /* There's no guarantee that underrun_detected won't be set to true @@ -1522,26 +1584,26 @@ void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv) * space to change the value during runtime without sanitizing it again. IGT * relies on being able to change i915.enable_fbc at runtime. */ -static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv) +static int intel_sanitize_fbc_option(struct drm_i915_private *i915) { - if (dev_priv->params.enable_fbc >= 0) - return !!dev_priv->params.enable_fbc; + if (i915->params.enable_fbc >= 0) + return !!i915->params.enable_fbc; - if (!HAS_FBC(dev_priv)) + if (!HAS_FBC(i915)) return 0; - if (IS_BROADWELL(dev_priv) || DISPLAY_VER(dev_priv) >= 9) + if (IS_BROADWELL(i915) || DISPLAY_VER(i915) >= 9) return 1; return 0; } -static bool need_fbc_vtd_wa(struct drm_i915_private *dev_priv) +static bool need_fbc_vtd_wa(struct drm_i915_private *i915) { /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */ - if (intel_vtd_active(dev_priv) && - (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))) { - drm_info(&dev_priv->drm, + if (intel_vtd_active(i915) && + (IS_SKYLAKE(i915) || IS_BROXTON(i915))) { + drm_info(&i915->drm, "Disabling framebuffer compression (FBC) to prevent screen flicker with VT-d enabled\n"); return true; } @@ -1549,38 +1611,171 @@ static bool need_fbc_vtd_wa(struct drm_i915_private *dev_priv) return false; } +void intel_fbc_add_plane(struct intel_fbc *fbc, struct intel_plane *plane) +{ + if (!fbc) + return; + + plane->fbc = fbc; + fbc->possible_framebuffer_bits |= plane->frontbuffer_bit; +} + +static struct intel_fbc *intel_fbc_create(struct drm_i915_private *i915) +{ + struct intel_fbc *fbc; + + fbc = kzalloc(sizeof(*fbc), GFP_KERNEL); + if (!fbc) + return NULL; + + fbc->i915 = i915; + INIT_WORK(&fbc->underrun_work, intel_fbc_underrun_work_fn); + mutex_init(&fbc->lock); + + if (DISPLAY_VER(i915) >= 7) + fbc->funcs = &ivb_fbc_funcs; + else if (DISPLAY_VER(i915) == 6) + fbc->funcs = &snb_fbc_funcs; + else if (DISPLAY_VER(i915) == 5) + fbc->funcs = &ilk_fbc_funcs; + else if (IS_G4X(i915)) + fbc->funcs = &g4x_fbc_funcs; + else if (DISPLAY_VER(i915) == 4) + fbc->funcs = &i965_fbc_funcs; + else + fbc->funcs = &i8xx_fbc_funcs; + + return fbc; +} + /** * intel_fbc_init - Initialize FBC - * @dev_priv: the i915 device + * @i915: the i915 device * * This function might be called during PM init process. */ -void intel_fbc_init(struct drm_i915_private *dev_priv) +void intel_fbc_init(struct drm_i915_private *i915) { - struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc *fbc; - INIT_WORK(&fbc->underrun_work, intel_fbc_underrun_work_fn); - mutex_init(&fbc->lock); - fbc->active = false; + if (!drm_mm_initialized(&i915->mm.stolen)) + mkwrite_device_info(i915)->display.has_fbc = false; - if (!drm_mm_initialized(&dev_priv->mm.stolen)) - mkwrite_device_info(dev_priv)->display.has_fbc = false; + if (need_fbc_vtd_wa(i915)) + mkwrite_device_info(i915)->display.has_fbc = false; - if (need_fbc_vtd_wa(dev_priv)) - mkwrite_device_info(dev_priv)->display.has_fbc = false; + i915->params.enable_fbc = intel_sanitize_fbc_option(i915); + drm_dbg_kms(&i915->drm, "Sanitized enable_fbc value: %d\n", + i915->params.enable_fbc); - dev_priv->params.enable_fbc = intel_sanitize_fbc_option(dev_priv); - drm_dbg_kms(&dev_priv->drm, "Sanitized enable_fbc value: %d\n", - dev_priv->params.enable_fbc); + if (!HAS_FBC(i915)) + return; - if (!HAS_FBC(dev_priv)) { - fbc->no_fbc_reason = "unsupported by this chipset"; + fbc = intel_fbc_create(i915); + if (!fbc) return; - } /* We still don't have any sort of hardware state readout for FBC, so * deactivate it in case the BIOS activated it to make sure software * matches the hardware state. */ - if (intel_fbc_hw_is_active(dev_priv)) - intel_fbc_hw_deactivate(dev_priv); + if (intel_fbc_hw_is_active(fbc)) + intel_fbc_hw_deactivate(fbc); + + i915->fbc = fbc; +} + +static int intel_fbc_debugfs_status_show(struct seq_file *m, void *unused) +{ + struct intel_fbc *fbc = m->private; + struct drm_i915_private *i915 = fbc->i915; + struct intel_plane *plane; + intel_wakeref_t wakeref; + + drm_modeset_lock_all(&i915->drm); + + wakeref = intel_runtime_pm_get(&i915->runtime_pm); + mutex_lock(&fbc->lock); + + if (fbc->active) { + seq_puts(m, "FBC enabled\n"); + seq_printf(m, "Compressing: %s\n", + yesno(intel_fbc_is_compressing(fbc))); + } else { + seq_printf(m, "FBC disabled: %s\n", fbc->no_fbc_reason); + } + + for_each_intel_plane(&i915->drm, plane) { + const struct intel_plane_state *plane_state = + to_intel_plane_state(plane->base.state); + + if (plane->fbc != fbc) + continue; + + seq_printf(m, "%c [PLANE:%d:%s]: %s\n", + fbc->state.plane == plane ? '*' : ' ', + plane->base.base.id, plane->base.name, + plane_state->no_fbc_reason ?: "FBC possible"); + } + + mutex_unlock(&fbc->lock); + intel_runtime_pm_put(&i915->runtime_pm, wakeref); + + drm_modeset_unlock_all(&i915->drm); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(intel_fbc_debugfs_status); + +static int intel_fbc_debugfs_false_color_get(void *data, u64 *val) +{ + struct intel_fbc *fbc = data; + + *val = fbc->false_color; + + return 0; +} + +static int intel_fbc_debugfs_false_color_set(void *data, u64 val) +{ + struct intel_fbc *fbc = data; + + mutex_lock(&fbc->lock); + + fbc->false_color = val; + + if (fbc->active) + fbc->funcs->set_false_color(fbc, fbc->false_color); + + mutex_unlock(&fbc->lock); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(intel_fbc_debugfs_false_color_fops, + intel_fbc_debugfs_false_color_get, + intel_fbc_debugfs_false_color_set, + "%llu\n"); + +static void intel_fbc_debugfs_add(struct intel_fbc *fbc) +{ + struct drm_i915_private *i915 = fbc->i915; + struct drm_minor *minor = i915->drm.primary; + + debugfs_create_file("i915_fbc_status", 0444, + minor->debugfs_root, fbc, + &intel_fbc_debugfs_status_fops); + + if (fbc->funcs->set_false_color) + debugfs_create_file("i915_fbc_false_color", 0644, + minor->debugfs_root, fbc, + &intel_fbc_debugfs_false_color_fops); +} + +void intel_fbc_debugfs_register(struct drm_i915_private *i915) +{ + struct intel_fbc *fbc = i915->fbc; + + if (fbc) + intel_fbc_debugfs_add(fbc); } |