diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bw.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bw.c | 81 |
1 files changed, 57 insertions, 24 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 688858ebe4d0..22e83f857de8 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -35,28 +35,54 @@ static int icl_pcode_read_mem_global_info(struct drm_i915_private *dev_priv, if (ret) return ret; - switch (val & 0xf) { - case 0: - qi->dram_type = INTEL_DRAM_DDR4; - break; - case 1: - qi->dram_type = INTEL_DRAM_DDR3; - break; - case 2: - qi->dram_type = INTEL_DRAM_LPDDR3; - break; - case 3: - qi->dram_type = INTEL_DRAM_LPDDR3; - break; - default: - MISSING_CASE(val & 0xf); - break; + if (IS_GEN(dev_priv, 12)) { + switch (val & 0xf) { + case 0: + qi->dram_type = INTEL_DRAM_DDR4; + break; + case 3: + qi->dram_type = INTEL_DRAM_LPDDR4; + break; + case 4: + qi->dram_type = INTEL_DRAM_DDR3; + break; + case 5: + qi->dram_type = INTEL_DRAM_LPDDR3; + break; + default: + MISSING_CASE(val & 0xf); + break; + } + } else if (IS_GEN(dev_priv, 11)) { + switch (val & 0xf) { + case 0: + qi->dram_type = INTEL_DRAM_DDR4; + break; + case 1: + qi->dram_type = INTEL_DRAM_DDR3; + break; + case 2: + qi->dram_type = INTEL_DRAM_LPDDR3; + break; + case 3: + qi->dram_type = INTEL_DRAM_LPDDR4; + break; + default: + MISSING_CASE(val & 0xf); + break; + } + } else { + MISSING_CASE(INTEL_GEN(dev_priv)); + qi->dram_type = INTEL_DRAM_LPDDR3; /* Conservative default */ } qi->num_channels = (val & 0xf0) >> 4; qi->num_points = (val & 0xf00) >> 8; - qi->t_bl = qi->dram_type == INTEL_DRAM_DDR4 ? 4 : 8; + if (IS_GEN(dev_priv, 12)) + qi->t_bl = qi->dram_type == INTEL_DRAM_DDR4 ? 4 : 16; + else if (IS_GEN(dev_priv, 11)) + qi->t_bl = qi->dram_type == INTEL_DRAM_DDR4 ? 4 : 8; return 0; } @@ -132,20 +158,25 @@ static int icl_sagv_max_dclk(const struct intel_qgv_info *qi) } struct intel_sa_info { - u8 deburst, mpagesize, deprogbwlimit, displayrtids; + u16 displayrtids; + u8 deburst, deprogbwlimit; }; static const struct intel_sa_info icl_sa_info = { .deburst = 8, - .mpagesize = 16, .deprogbwlimit = 25, /* GB/s */ .displayrtids = 128, }; -static int icl_get_bw_info(struct drm_i915_private *dev_priv) +static const struct intel_sa_info tgl_sa_info = { + .deburst = 16, + .deprogbwlimit = 34, /* GB/s */ + .displayrtids = 256, +}; + +static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa) { struct intel_qgv_info qi = {}; - const struct intel_sa_info *sa = &icl_sa_info; bool is_y_tile = true; /* assume y tile may be used */ int num_channels; int deinterleave; @@ -233,14 +264,16 @@ static unsigned int icl_max_bw(struct drm_i915_private *dev_priv, void intel_bw_init_hw(struct drm_i915_private *dev_priv) { - if (IS_GEN(dev_priv, 11)) - icl_get_bw_info(dev_priv); + if (IS_GEN(dev_priv, 12)) + icl_get_bw_info(dev_priv, &tgl_sa_info); + else if (IS_GEN(dev_priv, 11)) + icl_get_bw_info(dev_priv, &icl_sa_info); } static unsigned int intel_max_data_rate(struct drm_i915_private *dev_priv, int num_planes) { - if (IS_GEN(dev_priv, 11)) + if (INTEL_GEN(dev_priv) >= 11) /* * FIXME with SAGV disabled maybe we can assume * point 1 will always be used? Seems to match |