From ec193640819e014385c0ccc87e66909e44b4705e Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Fri, 28 Jun 2019 10:55:17 +0200 Subject: [PATCH] drm/i915: Use intel state as much as possible in wm code MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Instead of directly referencing drm_crtc_state, convert to intel_ctc_state and use the base struct. This is useful when we're making the split between uapi and hw state, and also makes the code slightly more readable. A lot of places also use cstate, instead of the more common crtc_state. Clean those up to use crtc_state. Same for pstate vs plane_state. (Ville) Signed-off-by: Maarten Lankhorst Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190628085517.31886-7-maarten.lankhorst@linux.intel.com --- drivers/gpu/drm/i915/i915_drv.h | 12 +- drivers/gpu/drm/i915/intel_pm.c | 402 +++++++++++++++----------------- 2 files changed, 200 insertions(+), 214 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 049a821cbefb..04723a2e0713 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -287,14 +287,14 @@ struct drm_i915_display_funcs { enum pipe pipe); int (*get_fifo_size)(struct drm_i915_private *dev_priv, enum i9xx_plane_id i9xx_plane); - int (*compute_pipe_wm)(struct intel_crtc_state *cstate); - int (*compute_intermediate_wm)(struct intel_crtc_state *newstate); + int (*compute_pipe_wm)(struct intel_crtc_state *crtc_state); + int (*compute_intermediate_wm)(struct intel_crtc_state *crtc_state); void (*initial_watermarks)(struct intel_atomic_state *state, - struct intel_crtc_state *cstate); + struct intel_crtc_state *crtc_state); void (*atomic_update_watermarks)(struct intel_atomic_state *state, - struct intel_crtc_state *cstate); + struct intel_crtc_state *crtc_state); void (*optimize_watermarks)(struct intel_atomic_state *state, - struct intel_crtc_state *cstate); + struct intel_crtc_state *crtc_state); int (*compute_global_watermarks)(struct intel_atomic_state *state); void (*update_wm)(struct intel_crtc *crtc); int (*modeset_calc_cdclk)(struct intel_atomic_state *state); @@ -1646,7 +1646,7 @@ struct drm_i915_private { /* * Should be held around atomic WM register writing; also * protects * intel_crtc->wm.active and - * cstate->wm.need_postvbl_update. + * crtc_state->wm.need_postvbl_update. */ struct mutex wm_mutex; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 4116de2a77fd..d10c62d3f10c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -1198,8 +1198,8 @@ static bool g4x_raw_fbc_wm_set(struct intel_crtc_state *crtc_state, return dirty; } -static u32 ilk_compute_fbc_wm(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate, +static u32 ilk_compute_fbc_wm(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, u32 pri_val); static bool g4x_raw_plane_wm_compute(struct intel_crtc_state *crtc_state, @@ -2493,8 +2493,8 @@ struct ilk_wm_maximums { * For both WM_PIPE and WM_LP. * mem_value must be in 0.1us units. */ -static u32 ilk_compute_pri_wm(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate, +static u32 ilk_compute_pri_wm(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, u32 mem_value, bool is_lp) { u32 method1, method2; @@ -2503,19 +2503,19 @@ static u32 ilk_compute_pri_wm(const struct intel_crtc_state *cstate, if (mem_value == 0) return U32_MAX; - if (!intel_wm_plane_visible(cstate, pstate)) + if (!intel_wm_plane_visible(crtc_state, plane_state)) return 0; - cpp = pstate->base.fb->format->cpp[0]; + cpp = plane_state->base.fb->format->cpp[0]; - method1 = ilk_wm_method1(cstate->pixel_rate, cpp, mem_value); + method1 = ilk_wm_method1(crtc_state->pixel_rate, cpp, mem_value); if (!is_lp) return method1; - method2 = ilk_wm_method2(cstate->pixel_rate, - cstate->base.adjusted_mode.crtc_htotal, - drm_rect_width(&pstate->base.dst), + method2 = ilk_wm_method2(crtc_state->pixel_rate, + crtc_state->base.adjusted_mode.crtc_htotal, + drm_rect_width(&plane_state->base.dst), cpp, mem_value); return min(method1, method2); @@ -2525,8 +2525,8 @@ static u32 ilk_compute_pri_wm(const struct intel_crtc_state *cstate, * For both WM_PIPE and WM_LP. * mem_value must be in 0.1us units. */ -static u32 ilk_compute_spr_wm(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate, +static u32 ilk_compute_spr_wm(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, u32 mem_value) { u32 method1, method2; @@ -2535,15 +2535,15 @@ static u32 ilk_compute_spr_wm(const struct intel_crtc_state *cstate, if (mem_value == 0) return U32_MAX; - if (!intel_wm_plane_visible(cstate, pstate)) + if (!intel_wm_plane_visible(crtc_state, plane_state)) return 0; - cpp = pstate->base.fb->format->cpp[0]; + cpp = plane_state->base.fb->format->cpp[0]; - method1 = ilk_wm_method1(cstate->pixel_rate, cpp, mem_value); - method2 = ilk_wm_method2(cstate->pixel_rate, - cstate->base.adjusted_mode.crtc_htotal, - drm_rect_width(&pstate->base.dst), + method1 = ilk_wm_method1(crtc_state->pixel_rate, cpp, mem_value); + method2 = ilk_wm_method2(crtc_state->pixel_rate, + crtc_state->base.adjusted_mode.crtc_htotal, + drm_rect_width(&plane_state->base.dst), cpp, mem_value); return min(method1, method2); } @@ -2552,8 +2552,8 @@ static u32 ilk_compute_spr_wm(const struct intel_crtc_state *cstate, * For both WM_PIPE and WM_LP. * mem_value must be in 0.1us units. */ -static u32 ilk_compute_cur_wm(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate, +static u32 ilk_compute_cur_wm(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, u32 mem_value) { int cpp; @@ -2561,29 +2561,29 @@ static u32 ilk_compute_cur_wm(const struct intel_crtc_state *cstate, if (mem_value == 0) return U32_MAX; - if (!intel_wm_plane_visible(cstate, pstate)) + if (!intel_wm_plane_visible(crtc_state, plane_state)) return 0; - cpp = pstate->base.fb->format->cpp[0]; + cpp = plane_state->base.fb->format->cpp[0]; - return ilk_wm_method2(cstate->pixel_rate, - cstate->base.adjusted_mode.crtc_htotal, - pstate->base.crtc_w, cpp, mem_value); + return ilk_wm_method2(crtc_state->pixel_rate, + crtc_state->base.adjusted_mode.crtc_htotal, + plane_state->base.crtc_w, cpp, mem_value); } /* Only for WM_LP. */ -static u32 ilk_compute_fbc_wm(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate, +static u32 ilk_compute_fbc_wm(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, u32 pri_val) { int cpp; - if (!intel_wm_plane_visible(cstate, pstate)) + if (!intel_wm_plane_visible(crtc_state, plane_state)) return 0; - cpp = pstate->base.fb->format->cpp[0]; + cpp = plane_state->base.fb->format->cpp[0]; - return ilk_wm_fbc(pri_val, drm_rect_width(&pstate->base.dst), cpp); + return ilk_wm_fbc(pri_val, drm_rect_width(&plane_state->base.dst), cpp); } static unsigned int @@ -2752,7 +2752,7 @@ static bool ilk_validate_wm_level(int level, static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv, const struct intel_crtc *intel_crtc, int level, - struct intel_crtc_state *cstate, + struct intel_crtc_state *crtc_state, const struct intel_plane_state *pristate, const struct intel_plane_state *sprstate, const struct intel_plane_state *curstate, @@ -2770,30 +2770,30 @@ static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv, } if (pristate) { - result->pri_val = ilk_compute_pri_wm(cstate, pristate, + result->pri_val = ilk_compute_pri_wm(crtc_state, pristate, pri_latency, level); - result->fbc_val = ilk_compute_fbc_wm(cstate, pristate, result->pri_val); + result->fbc_val = ilk_compute_fbc_wm(crtc_state, pristate, result->pri_val); } if (sprstate) - result->spr_val = ilk_compute_spr_wm(cstate, sprstate, spr_latency); + result->spr_val = ilk_compute_spr_wm(crtc_state, sprstate, spr_latency); if (curstate) - result->cur_val = ilk_compute_cur_wm(cstate, curstate, cur_latency); + result->cur_val = ilk_compute_cur_wm(crtc_state, curstate, cur_latency); result->enable = true; } static u32 -hsw_compute_linetime_wm(const struct intel_crtc_state *cstate) +hsw_compute_linetime_wm(const struct intel_crtc_state *crtc_state) { const struct intel_atomic_state *intel_state = - to_intel_atomic_state(cstate->base.state); + to_intel_atomic_state(crtc_state->base.state); const struct drm_display_mode *adjusted_mode = - &cstate->base.adjusted_mode; + &crtc_state->base.adjusted_mode; u32 linetime, ips_linetime; - if (!cstate->base.active) + if (!crtc_state->base.active) return 0; if (WARN_ON(adjusted_mode->crtc_clock == 0)) return 0; @@ -3101,10 +3101,10 @@ static bool ilk_validate_pipe_wm(const struct drm_i915_private *dev_priv, } /* Compute new watermarks for the pipe */ -static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate) +static int ilk_compute_pipe_wm(struct intel_crtc_state *crtc_state) { - struct drm_atomic_state *state = cstate->base.state; - struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc); + struct drm_atomic_state *state = crtc_state->base.state; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); struct intel_pipe_wm *pipe_wm; struct drm_device *dev = state->dev; const struct drm_i915_private *dev_priv = to_i915(dev); @@ -3116,9 +3116,9 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate) int level, max_level = ilk_wm_max_level(dev_priv), usable_level; struct ilk_wm_maximums max; - pipe_wm = &cstate->wm.ilk.optimal; + pipe_wm = &crtc_state->wm.ilk.optimal; - drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, &cstate->base) { + drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, &crtc_state->base) { const struct intel_plane_state *ps = to_intel_plane_state(plane_state); if (plane->type == DRM_PLANE_TYPE_PRIMARY) @@ -3129,7 +3129,7 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate) curstate = ps; } - pipe_wm->pipe_enabled = cstate->base.active; + pipe_wm->pipe_enabled = crtc_state->base.active; if (sprstate) { pipe_wm->sprites_enabled = sprstate->base.visible; pipe_wm->sprites_scaled = sprstate->base.visible && @@ -3148,11 +3148,11 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate) usable_level = 0; memset(&pipe_wm->wm, 0, sizeof(pipe_wm->wm)); - ilk_compute_wm_level(dev_priv, intel_crtc, 0, cstate, + ilk_compute_wm_level(dev_priv, intel_crtc, 0, crtc_state, pristate, sprstate, curstate, &pipe_wm->wm[0]); if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) - pipe_wm->linetime = hsw_compute_linetime_wm(cstate); + pipe_wm->linetime = hsw_compute_linetime_wm(crtc_state); if (!ilk_validate_pipe_wm(dev_priv, pipe_wm)) return -EINVAL; @@ -3162,7 +3162,7 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate) for (level = 1; level <= usable_level; level++) { struct intel_wm_level *wm = &pipe_wm->wm[level]; - ilk_compute_wm_level(dev_priv, intel_crtc, level, cstate, + ilk_compute_wm_level(dev_priv, intel_crtc, level, crtc_state, pristate, sprstate, curstate, wm); /* @@ -3742,7 +3742,7 @@ bool intel_can_enable_sagv(struct intel_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(dev); struct intel_crtc *crtc; struct intel_plane *plane; - struct intel_crtc_state *cstate; + struct intel_crtc_state *crtc_state; enum pipe pipe; int level, latency; int sagv_block_time_us; @@ -3773,14 +3773,14 @@ bool intel_can_enable_sagv(struct intel_atomic_state *state) /* Since we're now guaranteed to only have one active CRTC... */ pipe = ffs(state->active_crtcs) - 1; crtc = intel_get_crtc_for_pipe(dev_priv, pipe); - cstate = to_intel_crtc_state(crtc->base.state); + crtc_state = to_intel_crtc_state(crtc->base.state); if (crtc->base.state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) return false; for_each_intel_plane_on_crtc(dev, crtc, plane) { struct skl_plane_wm *wm = - &cstate->wm.skl.optimal.planes[plane->id]; + &crtc_state->wm.skl.optimal.planes[plane->id]; /* Skip this plane if it's not enabled */ if (!wm->wm[0].plane_en) @@ -3811,7 +3811,7 @@ bool intel_can_enable_sagv(struct intel_atomic_state *state) } static u16 intel_get_ddb_size(struct drm_i915_private *dev_priv, - const struct intel_crtc_state *cstate, + const struct intel_crtc_state *crtc_state, const u64 total_data_rate, const int num_active, struct skl_ddb_allocation *ddb) @@ -3825,7 +3825,7 @@ static u16 intel_get_ddb_size(struct drm_i915_private *dev_priv, if (INTEL_GEN(dev_priv) < 11) return ddb_size - 4; /* 4 blocks for bypass path allocation */ - adjusted_mode = &cstate->base.adjusted_mode; + adjusted_mode = &crtc_state->base.adjusted_mode; total_data_bw = total_data_rate * drm_mode_vrefresh(adjusted_mode); /* @@ -3848,23 +3848,22 @@ static u16 intel_get_ddb_size(struct drm_i915_private *dev_priv, static void skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv, - const struct intel_crtc_state *cstate, + const struct intel_crtc_state *crtc_state, const u64 total_data_rate, struct skl_ddb_allocation *ddb, struct skl_ddb_entry *alloc, /* out */ int *num_active /* out */) { - struct drm_atomic_state *state = cstate->base.state; + struct drm_atomic_state *state = crtc_state->base.state; struct intel_atomic_state *intel_state = to_intel_atomic_state(state); - struct drm_crtc *for_crtc = cstate->base.crtc; - const struct drm_crtc_state *crtc_state; - const struct drm_crtc *crtc; + struct drm_crtc *for_crtc = crtc_state->base.crtc; + const struct intel_crtc *crtc; u32 pipe_width = 0, total_width = 0, width_before_pipe = 0; enum pipe for_pipe = to_intel_crtc(for_crtc)->pipe; u16 ddb_size; u32 i; - if (WARN_ON(!state) || !cstate->base.active) { + if (WARN_ON(!state) || !crtc_state->base.active) { alloc->start = 0; alloc->end = 0; *num_active = hweight32(dev_priv->active_crtcs); @@ -3876,7 +3875,7 @@ skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv, else *num_active = hweight32(dev_priv->active_crtcs); - ddb_size = intel_get_ddb_size(dev_priv, cstate, total_data_rate, + ddb_size = intel_get_ddb_size(dev_priv, crtc_state, total_data_rate, *num_active, ddb); /* @@ -3901,16 +3900,15 @@ skl_ddb_get_pipe_allocation_limits(struct drm_i915_private *dev_priv, * framebuffer, So instead of allocating DDB equally among pipes * distribute DDB based on resolution/width of the display. */ - for_each_new_crtc_in_state(state, crtc, crtc_state, i) { - const struct drm_display_mode *adjusted_mode; + for_each_new_intel_crtc_in_state(intel_state, crtc, crtc_state, i) { + const struct drm_display_mode *adjusted_mode = + &crtc_state->base.adjusted_mode; + enum pipe pipe = crtc->pipe; int hdisplay, vdisplay; - enum pipe pipe; - if (!crtc_state->enable) + if (!crtc_state->base.enable) continue; - pipe = to_intel_crtc(crtc)->pipe; - adjusted_mode = &crtc_state->adjusted_mode; drm_mode_get_hv_timing(adjusted_mode, &hdisplay, &vdisplay); total_width += hdisplay; @@ -3929,7 +3927,7 @@ static int skl_compute_wm_params(const struct intel_crtc_state *crtc_state, u64 modifier, unsigned int rotation, u32 plane_pixel_rate, struct skl_wm_params *wp, int color_plane); -static void skl_compute_plane_wm(const struct intel_crtc_state *cstate, +static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state, int level, const struct skl_wm_params *wp, const struct skl_wm_level *result_prev, @@ -4061,15 +4059,15 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv, * Caller should take care of dividing & rounding off the value. */ static uint_fixed_16_16_t -skl_plane_downscale_amount(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate) +skl_plane_downscale_amount(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) { - struct intel_plane *plane = to_intel_plane(pstate->base.plane); + struct intel_plane *plane = to_intel_plane(plane_state->base.plane); u32 src_w, src_h, dst_w, dst_h; uint_fixed_16_16_t fp_w_ratio, fp_h_ratio; uint_fixed_16_16_t downscale_h, downscale_w; - if (WARN_ON(!intel_wm_plane_visible(cstate, pstate))) + if (WARN_ON(!intel_wm_plane_visible(crtc_state, plane_state))) return u32_to_fixed16(0); /* n.b., src is 16.16 fixed point, dst is whole integer */ @@ -4078,20 +4076,20 @@ skl_plane_downscale_amount(const struct intel_crtc_state *cstate, * Cursors only support 0/180 degree rotation, * hence no need to account for rotation here. */ - src_w = pstate->base.src_w >> 16; - src_h = pstate->base.src_h >> 16; - dst_w = pstate->base.crtc_w; - dst_h = pstate->base.crtc_h; + src_w = plane_state->base.src_w >> 16; + src_h = plane_state->base.src_h >> 16; + dst_w = plane_state->base.crtc_w; + dst_h = plane_state->base.crtc_h; } else { /* * 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. */ - src_w = drm_rect_width(&pstate->base.src) >> 16; - src_h = drm_rect_height(&pstate->base.src) >> 16; - dst_w = drm_rect_width(&pstate->base.dst); - dst_h = drm_rect_height(&pstate->base.dst); + src_w = drm_rect_width(&plane_state->base.src) >> 16; + src_h = drm_rect_height(&plane_state->base.src) >> 16; + dst_w = drm_rect_width(&plane_state->base.dst); + dst_h = drm_rect_height(&plane_state->base.dst); } fp_w_ratio = div_fixed16(src_w, dst_w); @@ -4136,49 +4134,46 @@ skl_pipe_downscale_amount(const struct intel_crtc_state *crtc_state) } int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc, - struct intel_crtc_state *cstate) + struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); - struct drm_crtc_state *crtc_state = &cstate->base; - struct drm_atomic_state *state = crtc_state->state; + struct drm_atomic_state *state = crtc_state->base.state; struct drm_plane *plane; - const struct drm_plane_state *pstate; - struct intel_plane_state *intel_pstate; + const struct drm_plane_state *drm_plane_state; int crtc_clock, dotclk; u32 pipe_max_pixel_rate; uint_fixed_16_16_t pipe_downscale; uint_fixed_16_16_t max_downscale = u32_to_fixed16(1); - if (!cstate->base.enable) + if (!crtc_state->base.enable) return 0; - drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) { + drm_atomic_crtc_state_for_each_plane_state(plane, drm_plane_state, &crtc_state->base) { uint_fixed_16_16_t plane_downscale; uint_fixed_16_16_t fp_9_div_8 = div_fixed16(9, 8); int bpp; + const struct intel_plane_state *plane_state = + to_intel_plane_state(drm_plane_state); - if (!intel_wm_plane_visible(cstate, - to_intel_plane_state(pstate))) + if (!intel_wm_plane_visible(crtc_state, plane_state)) continue; - if (WARN_ON(!pstate->fb)) + if (WARN_ON(!plane_state->base.fb)) return -EINVAL; - intel_pstate = to_intel_plane_state(pstate); - plane_downscale = skl_plane_downscale_amount(cstate, - intel_pstate); - bpp = pstate->fb->format->cpp[0] * 8; + plane_downscale = skl_plane_downscale_amount(crtc_state, plane_state); + bpp = plane_state->base.fb->format->cpp[0] * 8; if (bpp == 64) plane_downscale = mul_fixed16(plane_downscale, fp_9_div_8); max_downscale = max_fixed16(plane_downscale, max_downscale); } - pipe_downscale = skl_pipe_downscale_amount(cstate); + pipe_downscale = skl_pipe_downscale_amount(crtc_state); pipe_downscale = mul_fixed16(pipe_downscale, max_downscale); - crtc_clock = crtc_state->adjusted_mode.crtc_clock; + crtc_clock = crtc_state->base.adjusted_mode.crtc_clock; dotclk = to_intel_atomic_state(state)->cdclk.logical.cdclk; if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10) @@ -4195,12 +4190,11 @@ int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc, } static u64 -skl_plane_relative_data_rate(const struct intel_crtc_state *cstate, - const struct intel_plane_state *intel_pstate, +skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state, const int plane) { - struct intel_plane *intel_plane = - to_intel_plane(intel_pstate->base.plane); + struct intel_plane *intel_plane = to_intel_plane(plane_state->base.plane); u32 data_rate; u32 width = 0, height = 0; struct drm_framebuffer *fb; @@ -4208,10 +4202,10 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate, uint_fixed_16_16_t down_scale_amount; u64 rate; - if (!intel_pstate->base.visible) + if (!plane_state->base.visible) return 0; - fb = intel_pstate->base.fb; + fb = plane_state->base.fb; format = fb->format->format; if (intel_plane->id == PLANE_CURSOR) @@ -4224,8 +4218,8 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate, * the 90/270 degree plane rotation cases (to match the * GTT mapping), hence no need to account for rotation here. */ - width = drm_rect_width(&intel_pstate->base.src) >> 16; - height = drm_rect_height(&intel_pstate->base.src) >> 16; + width = drm_rect_width(&plane_state->base.src) >> 16; + height = drm_rect_height(&plane_state->base.src) >> 16; /* UV plane does 1/2 pixel sub-sampling */ if (plane == 1 && is_planar_yuv_format(format)) { @@ -4235,7 +4229,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate, data_rate = width * height; - down_scale_amount = skl_plane_downscale_amount(cstate, intel_pstate); + down_scale_amount = skl_plane_downscale_amount(crtc_state, plane_state); rate = mul_round_up_u32_fixed16(data_rate, down_scale_amount); @@ -4244,35 +4238,32 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate, } static u64 -skl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate, +skl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state, u64 *plane_data_rate, u64 *uv_plane_data_rate) { - struct drm_crtc_state *cstate = &intel_cstate->base; - struct drm_atomic_state *state = cstate->state; + struct drm_atomic_state *state = crtc_state->base.state; struct drm_plane *plane; - const struct drm_plane_state *pstate; + const struct drm_plane_state *drm_plane_state; u64 total_data_rate = 0; if (WARN_ON(!state)) return 0; /* Calculate and cache data rate for each plane */ - drm_atomic_crtc_state_for_each_plane_state(plane, pstate, cstate) { + drm_atomic_crtc_state_for_each_plane_state(plane, drm_plane_state, &crtc_state->base) { enum plane_id plane_id = to_intel_plane(plane)->id; + const struct intel_plane_state *plane_state = + to_intel_plane_state(drm_plane_state); u64 rate; - const struct intel_plane_state *intel_pstate = - to_intel_plane_state(pstate); /* packed/y */ - rate = skl_plane_relative_data_rate(intel_cstate, - intel_pstate, 0); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); plane_data_rate[plane_id] = rate; total_data_rate += rate; /* uv-plane */ - rate = skl_plane_relative_data_rate(intel_cstate, - intel_pstate, 1); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1); uv_plane_data_rate[plane_id] = rate; total_data_rate += rate; } @@ -4281,28 +4272,25 @@ skl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate, } static u64 -icl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate, +icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state, u64 *plane_data_rate) { - struct drm_crtc_state *cstate = &intel_cstate->base; - struct drm_atomic_state *state = cstate->state; struct drm_plane *plane; - const struct drm_plane_state *pstate; + const struct drm_plane_state *drm_plane_state; u64 total_data_rate = 0; - if (WARN_ON(!state)) + if (WARN_ON(!crtc_state->base.state)) return 0; /* Calculate and cache data rate for each plane */ - drm_atomic_crtc_state_for_each_plane_state(plane, pstate, cstate) { - const struct intel_plane_state *intel_pstate = - to_intel_plane_state(pstate); + drm_atomic_crtc_state_for_each_plane_state(plane, drm_plane_state, &crtc_state->base) { + const struct intel_plane_state *plane_state = + to_intel_plane_state(drm_plane_state); enum plane_id plane_id = to_intel_plane(plane)->id; u64 rate; - if (!intel_pstate->linked_plane) { - rate = skl_plane_relative_data_rate(intel_cstate, - intel_pstate, 0); + if (!plane_state->linked_plane) { + rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); plane_data_rate[plane_id] = rate; total_data_rate += rate; } else { @@ -4315,18 +4303,16 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate, * NULL if we try get_new_plane_state(), so we * always calculate from the master. */ - if (intel_pstate->slave) + if (plane_state->slave) continue; /* Y plane rate is calculated on the slave */ - rate = skl_plane_relative_data_rate(intel_cstate, - intel_pstate, 0); - y_plane_id = intel_pstate->linked_plane->id; + rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); + y_plane_id = plane_state->linked_plane->id; plane_data_rate[y_plane_id] = rate; total_data_rate += rate; - rate = skl_plane_relative_data_rate(intel_cstate, - intel_pstate, 1); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1); plane_data_rate[plane_id] = rate; total_data_rate += rate; } @@ -4336,14 +4322,14 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate, } static int -skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, +skl_allocate_pipe_ddb(struct intel_crtc_state *crtc_state, struct skl_ddb_allocation *ddb /* out */) { - struct drm_atomic_state *state = cstate->base.state; - struct drm_crtc *crtc = cstate->base.crtc; + struct drm_atomic_state *state = crtc_state->base.state; + struct drm_crtc *crtc = crtc_state->base.crtc; struct drm_i915_private *dev_priv = to_i915(crtc->dev); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct skl_ddb_entry *alloc = &cstate->wm.skl.ddb; + struct skl_ddb_entry *alloc = &crtc_state->wm.skl.ddb; u16 alloc_size, start = 0; u16 total[I915_MAX_PLANES] = {}; u16 uv_total[I915_MAX_PLANES] = {}; @@ -4356,40 +4342,40 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, int level; /* Clear the partitioning for disabled planes. */ - memset(cstate->wm.skl.plane_ddb_y, 0, sizeof(cstate->wm.skl.plane_ddb_y)); - memset(cstate->wm.skl.plane_ddb_uv, 0, sizeof(cstate->wm.skl.plane_ddb_uv)); + memset(crtc_state->wm.skl.plane_ddb_y, 0, sizeof(crtc_state->wm.skl.plane_ddb_y)); + memset(crtc_state->wm.skl.plane_ddb_uv, 0, sizeof(crtc_state->wm.skl.plane_ddb_uv)); if (WARN_ON(!state)) return 0; - if (!cstate->base.active) { + if (!crtc_state->base.active) { alloc->start = alloc->end = 0; return 0; } if (INTEL_GEN(dev_priv) >= 11) total_data_rate = - icl_get_total_relative_data_rate(cstate, + icl_get_total_relative_data_rate(crtc_state, plane_data_rate); else total_data_rate = - skl_get_total_relative_data_rate(cstate, + skl_get_total_relative_data_rate(crtc_state, plane_data_rate, uv_plane_data_rate); - skl_ddb_get_pipe_allocation_limits(dev_priv, cstate, total_data_rate, + skl_ddb_get_pipe_allocation_limits(dev_priv, crtc_state, total_data_rate, ddb, alloc, &num_active); alloc_size = skl_ddb_entry_size(alloc); if (alloc_size == 0) return 0; /* Allocate fixed number of blocks for cursor. */ - total[PLANE_CURSOR] = skl_cursor_allocation(cstate, num_active); + total[PLANE_CURSOR] = skl_cursor_allocation(crtc_state, num_active); alloc_size -= total[PLANE_CURSOR]; - cstate->wm.skl.plane_ddb_y[PLANE_CURSOR].start = + crtc_state->wm.skl.plane_ddb_y[PLANE_CURSOR].start = alloc->end - total[PLANE_CURSOR]; - cstate->wm.skl.plane_ddb_y[PLANE_CURSOR].end = alloc->end; + crtc_state->wm.skl.plane_ddb_y[PLANE_CURSOR].end = alloc->end; if (total_data_rate == 0) return 0; @@ -4402,7 +4388,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, blocks = 0; for_each_plane_id_on_crtc(intel_crtc, plane_id) { const struct skl_plane_wm *wm = - &cstate->wm.skl.optimal.planes[plane_id]; + &crtc_state->wm.skl.optimal.planes[plane_id]; if (plane_id == PLANE_CURSOR) { if (WARN_ON(wm->wm[level].min_ddb_alloc > @@ -4437,7 +4423,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, */ for_each_plane_id_on_crtc(intel_crtc, plane_id) { const struct skl_plane_wm *wm = - &cstate->wm.skl.optimal.planes[plane_id]; + &crtc_state->wm.skl.optimal.planes[plane_id]; u64 rate; u16 extra; @@ -4476,9 +4462,9 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, start = alloc->start; for_each_plane_id_on_crtc(intel_crtc, plane_id) { struct skl_ddb_entry *plane_alloc = - &cstate->wm.skl.plane_ddb_y[plane_id]; + &crtc_state->wm.skl.plane_ddb_y[plane_id]; struct skl_ddb_entry *uv_plane_alloc = - &cstate->wm.skl.plane_ddb_uv[plane_id]; + &crtc_state->wm.skl.plane_ddb_uv[plane_id]; if (plane_id == PLANE_CURSOR) continue; @@ -4509,7 +4495,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, for (level++; level <= ilk_wm_max_level(dev_priv); level++) { for_each_plane_id_on_crtc(intel_crtc, plane_id) { struct skl_plane_wm *wm = - &cstate->wm.skl.optimal.planes[plane_id]; + &crtc_state->wm.skl.optimal.planes[plane_id]; /* * We only disable the watermarks for each plane if @@ -4546,7 +4532,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate, */ for_each_plane_id_on_crtc(intel_crtc, plane_id) { struct skl_plane_wm *wm = - &cstate->wm.skl.optimal.planes[plane_id]; + &crtc_state->wm.skl.optimal.planes[plane_id]; if (wm->trans_wm.plane_res_b >= total[plane_id]) memset(&wm->trans_wm, 0, sizeof(wm->trans_wm)); @@ -4598,43 +4584,43 @@ skl_wm_method2(u32 pixel_rate, u32 pipe_htotal, u32 latency, } static uint_fixed_16_16_t -intel_get_linetime_us(const struct intel_crtc_state *cstate) +intel_get_linetime_us(const struct intel_crtc_state *crtc_state) { u32 pixel_rate; u32 crtc_htotal; uint_fixed_16_16_t linetime_us; - if (!cstate->base.active) + if (!crtc_state->base.active) return u32_to_fixed16(0); - pixel_rate = cstate->pixel_rate; + pixel_rate = crtc_state->pixel_rate; if (WARN_ON(pixel_rate == 0)) return u32_to_fixed16(0); - crtc_htotal = cstate->base.adjusted_mode.crtc_htotal; + crtc_htotal = crtc_state->base.adjusted_mode.crtc_htotal; linetime_us = div_fixed16(crtc_htotal * 1000, pixel_rate); return linetime_us; } static u32 -skl_adjusted_plane_pixel_rate(const struct intel_crtc_state *cstate, - const struct intel_plane_state *pstate) +skl_adjusted_plane_pixel_rate(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) { u64 adjusted_pixel_rate; uint_fixed_16_16_t downscale_amount; /* Shouldn't reach here on disabled planes... */ - if (WARN_ON(!intel_wm_plane_visible(cstate, pstate))) + if (WARN_ON(!intel_wm_plane_visible(crtc_state, plane_state))) return 0; /* * Adjusted plane pixel rate is just the pipe's adjusted pixel rate * with additional adjustments for plane-specific scaling. */ - adjusted_pixel_rate = cstate->pixel_rate; - downscale_amount = skl_plane_downscale_amount(cstate, pstate); + adjusted_pixel_rate = crtc_state->pixel_rate; + downscale_amount = skl_plane_downscale_amount(crtc_state, plane_state); return mul_round_up_u32_fixed16(adjusted_pixel_rate, downscale_amount); @@ -4767,13 +4753,13 @@ static bool skl_wm_has_lines(struct drm_i915_private *dev_priv, int level) return level > 0; } -static void skl_compute_plane_wm(const struct intel_crtc_state *cstate, +static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state, int level, const struct skl_wm_params *wp, const struct skl_wm_level *result_prev, struct skl_wm_level *result /* out */) { - struct drm_i915_private *dev_priv = to_i915(cstate->base.crtc->dev); + struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); u32 latency = dev_priv->wm.skl_latency[level]; uint_fixed_16_16_t method1, method2; uint_fixed_16_16_t selected_result; @@ -4799,14 +4785,14 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *cstate, method1 = skl_wm_method1(dev_priv, wp->plane_pixel_rate, wp->cpp, latency, wp->dbuf_block_size); method2 = skl_wm_method2(wp->plane_pixel_rate, - cstate->base.adjusted_mode.crtc_htotal, + crtc_state->base.adjusted_mode.crtc_htotal, latency, wp->plane_blocks_per_line); if (wp->y_tiled) { selected_result = max_fixed16(method2, wp->y_tile_minimum); } else { - if ((wp->cpp * cstate->base.adjusted_mode.crtc_htotal / + if ((wp->cpp * crtc_state->base.adjusted_mode.crtc_htotal / wp->dbuf_block_size < 1) && (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) { selected_result = method2; @@ -4893,18 +4879,18 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *cstate, } static void -skl_compute_wm_levels(const struct intel_crtc_state *cstate, +skl_compute_wm_levels(const struct intel_crtc_state *crtc_state, const struct skl_wm_params *wm_params, struct skl_wm_level *levels) { - struct drm_i915_private *dev_priv = to_i915(cstate->base.crtc->dev); + struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); int level, max_level = ilk_wm_max_level(dev_priv); struct skl_wm_level *result_prev = &levels[0]; for (level = 0; level <= max_level; level++) { struct skl_wm_level *result = &levels[level]; - skl_compute_plane_wm(cstate, level, wm_params, + skl_compute_plane_wm(crtc_state, level, wm_params, result_prev, result); result_prev = result; @@ -4912,14 +4898,14 @@ skl_compute_wm_levels(const struct intel_crtc_state *cstate, } static u32 -skl_compute_linetime_wm(const struct intel_crtc_state *cstate) +skl_compute_linetime_wm(const struct intel_crtc_state *crtc_state) { - struct drm_atomic_state *state = cstate->base.state; + struct drm_atomic_state *state = crtc_state->base.state; struct drm_i915_private *dev_priv = to_i915(state->dev); uint_fixed_16_16_t linetime_us; u32 linetime_wm; - linetime_us = intel_get_linetime_us(cstate); + linetime_us = intel_get_linetime_us(crtc_state); linetime_wm = fixed16_to_u32_round_up(mul_u32_fixed16(8, linetime_us)); /* Display WA #1135: BXT:ALL GLK:ALL */ @@ -4929,11 +4915,11 @@ skl_compute_linetime_wm(const struct intel_crtc_state *cstate) return linetime_wm; } -static void skl_compute_transition_wm(const struct intel_crtc_state *cstate, +static void skl_compute_transition_wm(const struct intel_crtc_state *crtc_state, const struct skl_wm_params *wp, struct skl_plane_wm *wm) { - struct drm_device *dev = cstate->base.crtc->dev; + struct drm_device *dev = crtc_state->base.crtc->dev; const struct drm_i915_private *dev_priv = to_i915(dev); u16 trans_min, trans_y_tile_min; const u16 trans_amount = 10; /* This is configurable amount */ @@ -5091,13 +5077,12 @@ static int icl_build_plane_wm(struct intel_crtc_state *crtc_state, return 0; } -static int skl_build_pipe_wm(struct intel_crtc_state *cstate) +static int skl_build_pipe_wm(struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(cstate->base.crtc->dev); - struct skl_pipe_wm *pipe_wm = &cstate->wm.skl.optimal; - struct drm_crtc_state *crtc_state = &cstate->base; + struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); + struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal; struct drm_plane *plane; - const struct drm_plane_state *pstate; + const struct drm_plane_state *drm_plane_state; int ret; /* @@ -5106,19 +5091,20 @@ static int skl_build_pipe_wm(struct intel_crtc_state *cstate) */ memset(pipe_wm->planes, 0, sizeof(pipe_wm->planes)); - drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) { - const struct intel_plane_state *intel_pstate = - to_intel_plane_state(pstate); + drm_atomic_crtc_state_for_each_plane_state(plane, drm_plane_state, + &crtc_state->base) { + const struct intel_plane_state *plane_state = + to_intel_plane_state(drm_plane_state); if (INTEL_GEN(dev_priv) >= 11) - ret = icl_build_plane_wm(cstate, intel_pstate); + ret = icl_build_plane_wm(crtc_state, plane_state); else - ret = skl_build_plane_wm(cstate, intel_pstate); + ret = skl_build_plane_wm(crtc_state, plane_state); if (ret) return ret; } - pipe_wm->linetime = skl_compute_linetime_wm(cstate); + pipe_wm->linetime = skl_compute_linetime_wm(crtc_state); return 0; } @@ -5272,10 +5258,10 @@ static u32 pipes_modified(struct intel_atomic_state *state) { struct intel_crtc *crtc; - struct intel_crtc_state *cstate; + struct intel_crtc_state *crtc_state; u32 i, ret = 0; - for_each_new_intel_crtc_in_state(state, crtc, cstate, i) + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) ret |= drm_crtc_mask(&crtc->base); return ret; @@ -5651,11 +5637,11 @@ skl_compute_wm(struct intel_atomic_state *state) } static void skl_atomic_update_crtc_wm(struct intel_atomic_state *state, - struct intel_crtc_state *cstate) + struct intel_crtc_state *crtc_state) { - struct intel_crtc *crtc = to_intel_crtc(cstate->base.crtc); + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); struct drm_i915_private *dev_priv = to_i915(state->base.dev); - struct skl_pipe_wm *pipe_wm = &cstate->wm.skl.optimal; + struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal; enum pipe pipe = crtc->pipe; if (!(state->wm_results.dirty_pipes & drm_crtc_mask(&crtc->base))) @@ -5665,9 +5651,9 @@ static void skl_atomic_update_crtc_wm(struct intel_atomic_state *state, } static void skl_initial_wm(struct intel_atomic_state *state, - struct intel_crtc_state *cstate) + struct intel_crtc_state *crtc_state) { - struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc); + struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); struct drm_device *dev = intel_crtc->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct skl_ddb_values *results = &state->wm_results; @@ -5677,8 +5663,8 @@ static void skl_initial_wm(struct intel_atomic_state *state, mutex_lock(&dev_priv->wm.wm_mutex); - if (cstate->base.active_changed) - skl_atomic_update_crtc_wm(state, cstate); + if (crtc_state->base.active_changed) + skl_atomic_update_crtc_wm(state, crtc_state); mutex_unlock(&dev_priv->wm.wm_mutex); } @@ -5734,26 +5720,26 @@ static void ilk_program_watermarks(struct drm_i915_private *dev_priv) } static void ilk_initial_watermarks(struct intel_atomic_state *state, - struct intel_crtc_state *cstate) + struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(cstate->base.crtc->dev); - struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); + struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); mutex_lock(&dev_priv->wm.wm_mutex); - intel_crtc->wm.active.ilk = cstate->wm.ilk.intermediate; + intel_crtc->wm.active.ilk = crtc_state->wm.ilk.intermediate; ilk_program_watermarks(dev_priv); mutex_unlock(&dev_priv->wm.wm_mutex); } static void ilk_optimize_watermarks(struct intel_atomic_state *state, - struct intel_crtc_state *cstate) + struct intel_crtc_state *crtc_state) { - struct drm_i915_private *dev_priv = to_i915(cstate->base.crtc->dev); - struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); + struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc); mutex_lock(&dev_priv->wm.wm_mutex); - if (cstate->wm.need_postvbl_update) { - intel_crtc->wm.active.ilk = cstate->wm.ilk.optimal; + if (crtc_state->wm.need_postvbl_update) { + intel_crtc->wm.active.ilk = crtc_state->wm.ilk.optimal; ilk_program_watermarks(dev_priv); } mutex_unlock(&dev_priv->wm.wm_mutex); @@ -5811,13 +5797,13 @@ void skl_wm_get_hw_state(struct drm_i915_private *dev_priv) struct skl_ddb_values *hw = &dev_priv->wm.skl_hw; struct skl_ddb_allocation *ddb = &dev_priv->wm.skl_hw.ddb; struct intel_crtc *crtc; - struct intel_crtc_state *cstate; + struct intel_crtc_state *crtc_state; skl_ddb_get_hw_state(dev_priv, ddb); for_each_intel_crtc(&dev_priv->drm, crtc) { - cstate = to_intel_crtc_state(crtc->base.state); + crtc_state = to_intel_crtc_state(crtc->base.state); - skl_pipe_wm_get_hw_state(crtc, &cstate->wm.skl.optimal); + skl_pipe_wm_get_hw_state(crtc, &crtc_state->wm.skl.optimal); if (crtc->active) hw->dirty_pipes |= drm_crtc_mask(&crtc->base); @@ -5834,8 +5820,8 @@ static void ilk_pipe_wm_get_hw_state(struct intel_crtc *crtc) struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct ilk_wm_values *hw = &dev_priv->wm.hw; - struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->base.state); - struct intel_pipe_wm *active = &cstate->wm.ilk.optimal; + struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); + struct intel_pipe_wm *active = &crtc_state->wm.ilk.optimal; enum pipe pipe = crtc->pipe; static const i915_reg_t wm0_pipe_reg[] = { [PIPE_A] = WM0_PIPEA_ILK, @@ -7191,7 +7177,7 @@ static void gen11_enable_rc6(struct drm_i915_private *dev_priv) * next request to execute. If the idle hysteresis is less than that * interrupt service latency, the hardware will automatically gate * the power well and we will then incur the wake up cost on top of - * the service latency. A similar guide from intel_pstate is that we + * the service latency. A similar guide from plane_state is that we * do not want the enable hysteresis to less than the wakeup latency. * * igt/gem_exec_nop/sequential provides a rough estimate for the @@ -7270,7 +7256,7 @@ static void gen9_enable_rc6(struct drm_i915_private *dev_priv) * next request to execute. If the idle hysteresis is less than that * interrupt service latency, the hardware will automatically gate * the power well and we will then incur the wake up cost on top of - * the service latency. A similar guide from intel_pstate is that we + * the service latency. A similar guide from plane_state is that we * do not want the enable hysteresis to less than the wakeup latency. * * igt/gem_exec_nop/sequential provides a rough estimate for the -- 2.30.2