diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_device.c | 225 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_device.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/compat-i915-headers/intel_step.h | 1 |
3 files changed, 217 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index b28d55fa0c3a..dfa923672492 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -16,14 +16,25 @@ #include "intel_display_power.h" #include "intel_display_reg_defs.h" #include "intel_fbc.h" +#include "intel_step.h" __diag_push(); __diag_ignore_all("-Woverride-init", "Allow field initialization overrides for display info"); +struct stepping_desc { + const enum intel_step *map; /* revid to step map */ + size_t size; /* map size */ +}; + +#define STEP_INFO(_map) \ + .step_info.map = _map, \ + .step_info.size = ARRAY_SIZE(_map) + struct subplatform_desc { enum intel_display_subplatform subplatform; const char *name; const u16 *pciidlist; + struct stepping_desc step_info; }; struct platform_desc { @@ -31,6 +42,7 @@ struct platform_desc { const char *name; const struct subplatform_desc *subplatforms; const struct intel_display_device_info *info; /* NULL for GMD ID */ + struct stepping_desc step_info; }; #define PLATFORM(_platform) \ @@ -610,6 +622,13 @@ static const u16 skl_ulx_ids[] = { 0 }; +static const enum intel_step skl_steppings[] = { + [0x6] = STEP_G0, + [0x7] = STEP_H0, + [0x9] = STEP_J0, + [0xA] = STEP_I1, +}; + static const struct platform_desc skl_desc = { PLATFORM(SKYLAKE), .subplatforms = (const struct subplatform_desc[]) { @@ -618,6 +637,7 @@ static const struct platform_desc skl_desc = { {}, }, .info = &skl_display, + STEP_INFO(skl_steppings), }; static const u16 kbl_ult_ids[] = { @@ -634,6 +654,16 @@ static const u16 kbl_ulx_ids[] = { 0 }; +static const enum intel_step kbl_steppings[] = { + [1] = STEP_B0, + [2] = STEP_B0, + [3] = STEP_B0, + [4] = STEP_C0, + [5] = STEP_B1, + [6] = STEP_B1, + [7] = STEP_C0, +}; + static const struct platform_desc kbl_desc = { PLATFORM(KABYLAKE), .subplatforms = (const struct subplatform_desc[]) { @@ -642,6 +672,7 @@ static const struct platform_desc kbl_desc = { {}, }, .info = &skl_display, + STEP_INFO(kbl_steppings), }; static const u16 cfl_ult_ids[] = { @@ -706,6 +737,13 @@ static const struct platform_desc cml_desc = { BIT(TRANSCODER_DSI_A) | BIT(TRANSCODER_DSI_C), \ .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) +static const enum intel_step bxt_steppings[] = { + [0xA] = STEP_C0, + [0xB] = STEP_C0, + [0xC] = STEP_D0, + [0xD] = STEP_E0, +}; + static const struct platform_desc bxt_desc = { PLATFORM(BROXTON), .info = &(const struct intel_display_device_info) { @@ -714,6 +752,11 @@ static const struct platform_desc bxt_desc = { .__runtime_defaults.ip.ver = 9, }, + STEP_INFO(bxt_steppings), +}; + +static const enum intel_step glk_steppings[] = { + [3] = STEP_B0, }; static const struct platform_desc glk_desc = { @@ -725,6 +768,7 @@ static const struct platform_desc glk_desc = { .__runtime_defaults.ip.ver = 10, }, + STEP_INFO(glk_steppings), }; #define ICL_DISPLAY \ @@ -773,6 +817,10 @@ static const u16 icl_port_f_ids[] = { 0 }; +static const enum intel_step icl_steppings[] = { + [7] = STEP_D0, +}; + static const struct platform_desc icl_desc = { PLATFORM(ICELAKE), .subplatforms = (const struct subplatform_desc[]) { @@ -784,6 +832,7 @@ static const struct platform_desc icl_desc = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | BIT(PORT_D) | BIT(PORT_E), }, + STEP_INFO(icl_steppings), }; static const struct intel_display_device_info jsl_ehl_display = { @@ -792,14 +841,21 @@ static const struct intel_display_device_info jsl_ehl_display = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | BIT(PORT_D), }; +static const enum intel_step jsl_ehl_steppings[] = { + [0] = STEP_A0, + [1] = STEP_B0, +}; + static const struct platform_desc jsl_desc = { PLATFORM(JASPERLAKE), .info = &jsl_ehl_display, + STEP_INFO(jsl_ehl_steppings), }; static const struct platform_desc ehl_desc = { PLATFORM(ELKHARTLAKE), .info = &jsl_ehl_display, + STEP_INFO(jsl_ehl_steppings), }; #define XE_D_DISPLAY \ @@ -850,10 +906,23 @@ static const u16 tgl_uy_ids[] = { 0 }; +static const enum intel_step tgl_steppings[] = { + [0] = STEP_B0, + [1] = STEP_D0, +}; + +static const enum intel_step tgl_uy_steppings[] = { + [0] = STEP_A0, + [1] = STEP_C0, + [2] = STEP_C0, + [3] = STEP_D0, +}; + static const struct platform_desc tgl_desc = { PLATFORM(TIGERLAKE), .subplatforms = (const struct subplatform_desc[]) { - { INTEL_DISPLAY_TIGERLAKE_UY, "UY", tgl_uy_ids }, + { INTEL_DISPLAY_TIGERLAKE_UY, "UY", tgl_uy_ids, + STEP_INFO(tgl_uy_steppings) }, {}, }, .info = &(const struct intel_display_device_info) { @@ -866,6 +935,12 @@ static const struct platform_desc tgl_desc = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_TC1) | BIT(PORT_TC2) | BIT(PORT_TC3) | BIT(PORT_TC4) | BIT(PORT_TC5) | BIT(PORT_TC6), }, + STEP_INFO(tgl_steppings), +}; + +static const enum intel_step dg1_steppings[] = { + [0] = STEP_A0, + [1] = STEP_B0, }; static const struct platform_desc dg1_desc = { @@ -876,6 +951,13 @@ static const struct platform_desc dg1_desc = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_TC1) | BIT(PORT_TC2), }, + STEP_INFO(dg1_steppings), +}; + +static const enum intel_step rkl_steppings[] = { + [0] = STEP_A0, + [1] = STEP_B0, + [4] = STEP_C0, }; static const struct platform_desc rkl_desc = { @@ -892,6 +974,7 @@ static const struct platform_desc rkl_desc = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_TC1) | BIT(PORT_TC2), }, + STEP_INFO(rkl_steppings), }; static const u16 adls_rpls_ids[] = { @@ -899,10 +982,24 @@ static const u16 adls_rpls_ids[] = { 0 }; +static const enum intel_step adl_s_steppings[] = { + [0x0] = STEP_A0, + [0x1] = STEP_A2, + [0x4] = STEP_B0, + [0x8] = STEP_B0, + [0xC] = STEP_C0, +}; + +static const enum intel_step adl_s_rpl_s_steppings[] = { + [0x4] = STEP_D0, + [0xC] = STEP_C0, +}; + static const struct platform_desc adl_s_desc = { PLATFORM(ALDERLAKE_S), .subplatforms = (const struct subplatform_desc[]) { - { INTEL_DISPLAY_ALDERLAKE_S_RAPTORLAKE_S, "RPL-S", adls_rpls_ids }, + { INTEL_DISPLAY_ALDERLAKE_S_RAPTORLAKE_S, "RPL-S", adls_rpls_ids, + STEP_INFO(adl_s_rpl_s_steppings) }, {}, }, .info = &(const struct intel_display_device_info) { @@ -913,6 +1010,7 @@ static const struct platform_desc adl_s_desc = { .__runtime_defaults.port_mask = BIT(PORT_A) | BIT(PORT_TC1) | BIT(PORT_TC2) | BIT(PORT_TC3) | BIT(PORT_TC4), }, + STEP_INFO(adl_s_steppings), }; #define XE_LPD_FEATURES \ @@ -986,15 +1084,34 @@ static const u16 adlp_rplp_ids[] = { 0 }; +static const enum intel_step adl_p_steppings[] = { + [0x0] = STEP_A0, + [0x4] = STEP_B0, + [0x8] = STEP_C0, + [0xC] = STEP_D0, +}; + +static const enum intel_step adl_p_adl_n_steppings[] = { + [0x0] = STEP_D0, +}; + +static const enum intel_step adl_p_rpl_pu_steppings[] = { + [0x4] = STEP_E0, +}; + static const struct platform_desc adl_p_desc = { PLATFORM(ALDERLAKE_P), .subplatforms = (const struct subplatform_desc[]) { - { INTEL_DISPLAY_ALDERLAKE_P_ALDERLAKE_N, "ADL-N", adlp_adln_ids }, - { INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_U, "RPL-U", adlp_rplu_ids }, - { INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_P, "RPL-P", adlp_rplp_ids }, + { INTEL_DISPLAY_ALDERLAKE_P_ALDERLAKE_N, "ADL-N", adlp_adln_ids, + STEP_INFO(adl_p_adl_n_steppings) }, + { INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_P, "RPL-P", adlp_rplp_ids, + STEP_INFO(adl_p_rpl_pu_steppings) }, + { INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_U, "RPL-U", adlp_rplu_ids, + STEP_INFO(adl_p_rpl_pu_steppings) }, {}, }, .info = &xe_lpd_display, + STEP_INFO(adl_p_steppings), }; static const struct intel_display_device_info xe_hpd_display = { @@ -1023,12 +1140,33 @@ static const u16 dg2_g12_ids[] = { 0 }; +static const enum intel_step dg2_g10_steppings[] = { + [0x0] = STEP_A0, + [0x1] = STEP_A0, + [0x4] = STEP_B0, + [0x8] = STEP_C0, +}; + +static const enum intel_step dg2_g11_steppings[] = { + [0x0] = STEP_B0, + [0x4] = STEP_C0, + [0x5] = STEP_C0, +}; + +static const enum intel_step dg2_g12_steppings[] = { + [0x0] = STEP_C0, + [0x1] = STEP_C0, +}; + static const struct platform_desc dg2_desc = { PLATFORM(DG2), .subplatforms = (const struct subplatform_desc[]) { - { INTEL_DISPLAY_DG2_G10, "G10", dg2_g10_ids }, - { INTEL_DISPLAY_DG2_G11, "G11", dg2_g11_ids }, - { INTEL_DISPLAY_DG2_G12, "G12", dg2_g12_ids }, + { INTEL_DISPLAY_DG2_G10, "G10", dg2_g10_ids, + STEP_INFO(dg2_g10_steppings) }, + { INTEL_DISPLAY_DG2_G11, "G11", dg2_g11_ids, + STEP_INFO(dg2_g11_steppings) }, + { INTEL_DISPLAY_DG2_G12, "G12", dg2_g12_ids, + STEP_INFO(dg2_g12_steppings) }, {}, }, .info = &xe_hpd_display, @@ -1261,13 +1399,66 @@ find_subplatform_desc(struct pci_dev *pdev, const struct platform_desc *desc) return NULL; } +static enum intel_step get_pre_gmdid_step(struct intel_display *display, + const struct stepping_desc *main, + const struct stepping_desc *sub) +{ + struct pci_dev *pdev = to_pci_dev(display->drm->dev); + const enum intel_step *map = main->map; + int size = main->size; + int revision = pdev->revision; + enum intel_step step; + + /* subplatform stepping info trumps main platform info */ + if (sub && sub->map && sub->size) { + map = sub->map; + size = sub->size; + } + + /* not all platforms define steppings, and it's fine */ + if (!map || !size) + return STEP_NONE; + + if (revision < size && map[revision] != STEP_NONE) { + step = map[revision]; + } else { + drm_warn(display->drm, "Unknown revision 0x%02x\n", revision); + + /* + * If we hit a gap in the revision to step map, use the information + * for the next revision. + * + * This may be wrong in all sorts of ways, especially if the + * steppings in the array are not monotonically increasing, but + * it's better than defaulting to 0. + */ + while (revision < size && map[revision] == STEP_NONE) + revision++; + + if (revision < size) { + drm_dbg_kms(display->drm, "Using display stepping for revision 0x%02x\n", + revision); + step = map[revision]; + } else { + drm_dbg_kms(display->drm, "Using future display stepping\n"); + step = STEP_FUTURE; + } + } + + drm_WARN_ON(display->drm, step == STEP_NONE); + + return step; +} + void intel_display_device_probe(struct drm_i915_private *i915) { + struct intel_display *display = &i915->display; struct pci_dev *pdev = to_pci_dev(i915->drm.dev); const struct intel_display_device_info *info; struct intel_display_ip_ver ip_ver = {}; const struct platform_desc *desc; const struct subplatform_desc *subdesc; + enum intel_step step; /* Add drm device backpointer as early as possible. */ i915->display.drm = &i915->drm; @@ -1307,13 +1498,25 @@ void intel_display_device_probe(struct drm_i915_private *i915) DISPLAY_RUNTIME_INFO(i915)->subplatform = subdesc->subplatform; } - if (ip_ver.ver || ip_ver.rel || ip_ver.step) + if (ip_ver.ver || ip_ver.rel || ip_ver.step) { DISPLAY_RUNTIME_INFO(i915)->ip = ip_ver; + step = STEP_A0 + ip_ver.step; + if (step > STEP_FUTURE) { + drm_dbg_kms(display->drm, "Using future display stepping\n"); + step = STEP_FUTURE; + } + } else { + step = get_pre_gmdid_step(display, &desc->step_info, + subdesc ? &subdesc->step_info : NULL); + } + + DISPLAY_RUNTIME_INFO(i915)->step = step; - drm_info(&i915->drm, "Found %s%s%s (device ID %04x) display version %u.%02u\n", + drm_info(&i915->drm, "Found %s%s%s (device ID %04x) display version %u.%02u stepping %s\n", desc->name, subdesc ? "/" : "", subdesc ? subdesc->name : "", pdev->device, DISPLAY_RUNTIME_INFO(i915)->ip.ver, - DISPLAY_RUNTIME_INFO(i915)->ip.rel); + DISPLAY_RUNTIME_INFO(i915)->ip.rel, + step != STEP_NONE ? intel_step_name(step) : "N/A"); return; diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index ccf1710cb9df..4615c3ba60aa 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -201,8 +201,9 @@ struct intel_display_runtime_info { struct intel_display_ip_ver { u16 ver; u16 rel; - u16 step; + u16 step; /* hardware */ } ip; + int step; /* symbolic */ u32 rawclk_freq; diff --git a/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h b/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h index ee3f45b668b9..2cf13a572ab0 100644 --- a/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h +++ b/drivers/gpu/drm/xe/compat-i915-headers/intel_step.h @@ -8,6 +8,7 @@ #include "xe_step.h" +#define intel_step xe_step #define intel_step_name xe_step_name #endif /* __INTEL_STEP_H__ */ |