diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bw.c')
-rw-r--r-- | drivers/gpu/drm/i915/display/intel_bw.c | 152 |
1 files changed, 111 insertions, 41 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 79269d2c476b..4ace026b29bd 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -5,15 +5,17 @@ #include <drm/drm_atomic_state_helper.h> +#include "i915_drv.h" #include "i915_reg.h" #include "i915_utils.h" #include "intel_atomic.h" #include "intel_bw.h" #include "intel_cdclk.h" +#include "intel_display_core.h" #include "intel_display_types.h" +#include "skl_watermark.h" #include "intel_mchbar_regs.h" #include "intel_pcode.h" -#include "intel_pm.h" /* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -137,6 +139,42 @@ int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv, return 0; } +static int mtl_read_qgv_point_info(struct drm_i915_private *dev_priv, + struct intel_qgv_point *sp, int point) +{ + u32 val, val2; + u16 dclk; + + val = intel_uncore_read(&dev_priv->uncore, + MTL_MEM_SS_INFO_QGV_POINT_LOW(point)); + val2 = intel_uncore_read(&dev_priv->uncore, + MTL_MEM_SS_INFO_QGV_POINT_HIGH(point)); + dclk = REG_FIELD_GET(MTL_DCLK_MASK, val); + sp->dclk = DIV_ROUND_UP((16667 * dclk), 1000); + sp->t_rp = REG_FIELD_GET(MTL_TRP_MASK, val); + sp->t_rcd = REG_FIELD_GET(MTL_TRCD_MASK, val); + + sp->t_rdpre = REG_FIELD_GET(MTL_TRDPRE_MASK, val2); + sp->t_ras = REG_FIELD_GET(MTL_TRAS_MASK, val2); + + sp->t_rc = sp->t_rp + sp->t_ras; + + return 0; +} + +static int +intel_read_qgv_point_info(struct drm_i915_private *dev_priv, + struct intel_qgv_point *sp, + int point) +{ + if (DISPLAY_VER(dev_priv) >= 14) + return mtl_read_qgv_point_info(dev_priv, sp, point); + else if (IS_DG1(dev_priv)) + return dg1_mchbar_read_qgv_point_info(dev_priv, sp, point); + else + return icl_pcode_read_qgv_point_info(dev_priv, sp, point); +} + static int icl_get_qgv_points(struct drm_i915_private *dev_priv, struct intel_qgv_info *qi, bool is_y_tile) @@ -147,7 +185,32 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv, qi->num_points = dram_info->num_qgv_points; qi->num_psf_points = dram_info->num_psf_gv_points; - if (DISPLAY_VER(dev_priv) >= 12) + if (DISPLAY_VER(dev_priv) >= 14) { + switch (dram_info->type) { + case INTEL_DRAM_DDR4: + qi->t_bl = 4; + qi->max_numchannels = 2; + qi->channel_width = 64; + qi->deinterleave = 2; + break; + case INTEL_DRAM_DDR5: + qi->t_bl = 8; + qi->max_numchannels = 4; + qi->channel_width = 32; + qi->deinterleave = 2; + break; + case INTEL_DRAM_LPDDR4: + case INTEL_DRAM_LPDDR5: + qi->t_bl = 16; + qi->max_numchannels = 8; + qi->channel_width = 16; + qi->deinterleave = 4; + break; + default: + MISSING_CASE(dram_info->type); + return -EINVAL; + } + } else if (DISPLAY_VER(dev_priv) >= 12) { switch (dram_info->type) { case INTEL_DRAM_DDR4: qi->t_bl = is_y_tile ? 8 : 4; @@ -181,7 +244,7 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv, qi->max_numchannels = 1; break; } - else if (DISPLAY_VER(dev_priv) == 11) { + } else if (DISPLAY_VER(dev_priv) == 11) { qi->t_bl = dev_priv->dram_info.type == INTEL_DRAM_DDR4 ? 4 : 8; qi->max_numchannels = 1; } @@ -193,11 +256,7 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv, for (i = 0; i < qi->num_points; i++) { struct intel_qgv_point *sp = &qi->points[i]; - if (IS_DG1(dev_priv)) - ret = dg1_mchbar_read_qgv_point_info(dev_priv, sp, i); - else - ret = icl_pcode_read_qgv_point_info(dev_priv, sp, i); - + ret = intel_read_qgv_point_info(dev_priv, sp, i); if (ret) return ret; @@ -284,6 +343,13 @@ static const struct intel_sa_info adlp_sa_info = { .derating = 20, }; +static const struct intel_sa_info mtl_sa_info = { + .deburst = 32, + .deprogbwlimit = 38, /* GB/s */ + .displayrtids = 256, + .derating = 20, +}; + static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa) { struct intel_qgv_info qi = {}; @@ -292,7 +358,7 @@ static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel int ipqdepth, ipqdepthpch = 16; int dclk_max; int maxdebw; - int num_groups = ARRAY_SIZE(dev_priv->max_bw); + int num_groups = ARRAY_SIZE(dev_priv->display.bw.max); int i, ret; ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile); @@ -308,7 +374,7 @@ static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel qi.deinterleave = DIV_ROUND_UP(num_channels, is_y_tile ? 4 : 2); for (i = 0; i < num_groups; i++) { - struct intel_bw_info *bi = &dev_priv->max_bw[i]; + struct intel_bw_info *bi = &dev_priv->display.bw.max[i]; int clpchgroup; int j; @@ -346,9 +412,9 @@ static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel * as it will fail and pointless anyway. */ if (qi.num_points == 1) - dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; + dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED; else - dev_priv->sagv_status = I915_SAGV_ENABLED; + dev_priv->display.sagv.status = I915_SAGV_ENABLED; return 0; } @@ -363,7 +429,7 @@ static int tgl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel int dclk_max; int maxdebw, peakbw; int clperchgroup; - int num_groups = ARRAY_SIZE(dev_priv->max_bw); + int num_groups = ARRAY_SIZE(dev_priv->display.bw.max); int i, ret; ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile); @@ -399,20 +465,22 @@ static int tgl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel clperchgroup = 4 * DIV_ROUND_UP(8, num_channels) * qi.deinterleave; for (i = 0; i < num_groups; i++) { - struct intel_bw_info *bi = &dev_priv->max_bw[i]; + struct intel_bw_info *bi = &dev_priv->display.bw.max[i]; struct intel_bw_info *bi_next; int clpchgroup; int j; - if (i < num_groups - 1) - bi_next = &dev_priv->max_bw[i + 1]; - clpchgroup = (sa->deburst * qi.deinterleave / num_channels) << i; - if (i < num_groups - 1 && clpchgroup < clperchgroup) - bi_next->num_planes = (ipqdepth - clpchgroup) / clpchgroup + 1; - else - bi_next->num_planes = 0; + if (i < num_groups - 1) { + bi_next = &dev_priv->display.bw.max[i + 1]; + + if (clpchgroup < clperchgroup) + bi_next->num_planes = (ipqdepth - clpchgroup) / + clpchgroup + 1; + else + bi_next->num_planes = 0; + } bi->num_qgv_points = qi.num_points; bi->num_psf_gv_points = qi.num_psf_points; @@ -456,9 +524,9 @@ static int tgl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel * as it will fail and pointless anyway. */ if (qi.num_points == 1) - dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; + dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED; else - dev_priv->sagv_status = I915_SAGV_ENABLED; + dev_priv->display.sagv.status = I915_SAGV_ENABLED; return 0; } @@ -466,7 +534,7 @@ static int tgl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel static void dg2_get_bw_info(struct drm_i915_private *i915) { unsigned int deratedbw = IS_DG2_G11(i915) ? 38000 : 50000; - int num_groups = ARRAY_SIZE(i915->max_bw); + int num_groups = ARRAY_SIZE(i915->display.bw.max); int i; /* @@ -477,7 +545,7 @@ static void dg2_get_bw_info(struct drm_i915_private *i915) * whereas DG2-G11 platforms have 38 GB/s. */ for (i = 0; i < num_groups; i++) { - struct intel_bw_info *bi = &i915->max_bw[i]; + struct intel_bw_info *bi = &i915->display.bw.max[i]; bi->num_planes = 1; /* Need only one dummy QGV point per group */ @@ -485,7 +553,7 @@ static void dg2_get_bw_info(struct drm_i915_private *i915) bi->deratedbw[0] = deratedbw; } - i915->sagv_status = I915_SAGV_NOT_CONTROLLED; + i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED; } static unsigned int icl_max_bw(struct drm_i915_private *dev_priv, @@ -498,9 +566,9 @@ static unsigned int icl_max_bw(struct drm_i915_private *dev_priv, */ num_planes = max(1, num_planes); - for (i = 0; i < ARRAY_SIZE(dev_priv->max_bw); i++) { + for (i = 0; i < ARRAY_SIZE(dev_priv->display.bw.max); i++) { const struct intel_bw_info *bi = - &dev_priv->max_bw[i]; + &dev_priv->display.bw.max[i]; /* * Pcode will not expose all QGV points when @@ -526,9 +594,9 @@ static unsigned int tgl_max_bw(struct drm_i915_private *dev_priv, */ num_planes = max(1, num_planes); - for (i = ARRAY_SIZE(dev_priv->max_bw) - 1; i >= 0; i--) { + for (i = ARRAY_SIZE(dev_priv->display.bw.max) - 1; i >= 0; i--) { const struct intel_bw_info *bi = - &dev_priv->max_bw[i]; + &dev_priv->display.bw.max[i]; /* * Pcode will not expose all QGV points when @@ -541,14 +609,14 @@ static unsigned int tgl_max_bw(struct drm_i915_private *dev_priv, return bi->deratedbw[qgv_point]; } - return dev_priv->max_bw[0].deratedbw[qgv_point]; + return dev_priv->display.bw.max[0].deratedbw[qgv_point]; } static unsigned int adl_psf_bw(struct drm_i915_private *dev_priv, int psf_gv_point) { const struct intel_bw_info *bi = - &dev_priv->max_bw[0]; + &dev_priv->display.bw.max[0]; return bi->psf_bw[psf_gv_point]; } @@ -558,7 +626,9 @@ void intel_bw_init_hw(struct drm_i915_private *dev_priv) if (!HAS_DISPLAY(dev_priv)) return; - if (IS_DG2(dev_priv)) + if (DISPLAY_VER(dev_priv) >= 14) + tgl_get_bw_info(dev_priv, &mtl_sa_info); + else if (IS_DG2(dev_priv)) dg2_get_bw_info(dev_priv); else if (IS_ALDERLAKE_P(dev_priv)) tgl_get_bw_info(dev_priv, &adlp_sa_info); @@ -667,7 +737,7 @@ intel_atomic_get_old_bw_state(struct intel_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_global_state *bw_state; - bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->bw_obj); + bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->display.bw.obj); return to_intel_bw_state(bw_state); } @@ -678,7 +748,7 @@ intel_atomic_get_new_bw_state(struct intel_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_global_state *bw_state; - bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->bw_obj); + bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->display.bw.obj); return to_intel_bw_state(bw_state); } @@ -689,7 +759,7 @@ intel_atomic_get_bw_state(struct intel_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_global_state *bw_state; - bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->bw_obj); + bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->display.bw.obj); if (IS_ERR(bw_state)) return ERR_CAST(bw_state); @@ -896,8 +966,8 @@ int intel_bw_calc_min_cdclk(struct intel_atomic_state *state, static u16 icl_qgv_points_mask(struct drm_i915_private *i915) { - unsigned int num_psf_gv_points = i915->max_bw[0].num_psf_gv_points; - unsigned int num_qgv_points = i915->max_bw[0].num_qgv_points; + unsigned int num_psf_gv_points = i915->display.bw.max[0].num_psf_gv_points; + unsigned int num_qgv_points = i915->display.bw.max[0].num_qgv_points; u16 qgv_points = 0, psf_points = 0; /* @@ -970,8 +1040,8 @@ int intel_bw_atomic_check(struct intel_atomic_state *state) int i, ret; u16 qgv_points = 0, psf_points = 0; unsigned int max_bw_point = 0, max_bw = 0; - unsigned int num_qgv_points = dev_priv->max_bw[0].num_qgv_points; - unsigned int num_psf_gv_points = dev_priv->max_bw[0].num_psf_gv_points; + unsigned int num_qgv_points = dev_priv->display.bw.max[0].num_qgv_points; + unsigned int num_psf_gv_points = dev_priv->display.bw.max[0].num_psf_gv_points; bool changed = false; /* FIXME earlier gens need some checks too */ @@ -1126,7 +1196,7 @@ int intel_bw_init(struct drm_i915_private *dev_priv) if (!state) return -ENOMEM; - intel_atomic_global_obj_init(dev_priv, &dev_priv->bw_obj, + intel_atomic_global_obj_init(dev_priv, &dev_priv->display.bw.obj, &state->base, &intel_bw_funcs); return 0; |