From: José Roberto de Souza <jose.so...@intel.com> The GMD step field do not properly match the current stepping convention that we use(STEP_A0, STEP_A1, STEP_B0...).
One platform could have { arch = 12, rel = 70, step = 1 } and the actual stepping is STEP_B0 but without the translation of the step field would mean STEP_A1. That is why we will need to have gmd_to_intel_step tables for each IP. v2: - Pass the updated ip version structure Cc: Balasubramani Vivekanandan <balasubramani.vivekanan...@intel.com> Signed-off-by: José Roberto de Souza <jose.so...@intel.com> --- drivers/gpu/drm/i915/intel_step.c | 60 +++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c index 42b3133d8387..bc966478f0f8 100644 --- a/drivers/gpu/drm/i915/intel_step.c +++ b/drivers/gpu/drm/i915/intel_step.c @@ -135,6 +135,48 @@ static const struct intel_step_info adlp_n_revids[] = { [0x0] = { COMMON_GT_MEDIA_STEP(A0), .display_step = STEP_D0 }, }; +struct gmd_to_intel_step { + struct ip_version gmd; + enum intel_step step; +}; + +static const struct gmd_to_intel_step gmd_graphics_table[] = { + { .gmd.ver = 12, .gmd.rel = 70, .gmd.step = 0, .step = STEP_A0 }, + { .gmd.ver = 12, .gmd.rel = 70, .gmd.step = 4, .step = STEP_B0 }, + { .gmd.ver = 12, .gmd.rel = 71, .gmd.step = 0, .step = STEP_A0 }, + { .gmd.ver = 12, .gmd.rel = 71, .gmd.step = 4, .step = STEP_B0 }, + { .gmd.ver = 12, .gmd.rel = 73, .gmd.step = 0, .step = STEP_A0 }, + { .gmd.ver = 12, .gmd.rel = 73, .gmd.step = 4, .step = STEP_B0 }, +}; + +static const struct gmd_to_intel_step gmd_media_table[] = { + { .gmd.ver = 13, .gmd.rel = 70, .gmd.step = 0, .step = STEP_A0 }, + { .gmd.ver = 13, .gmd.rel = 70, .gmd.step = 4, .step = STEP_B0 }, +}; + +static const struct gmd_to_intel_step gmd_display_table[] = { + { .gmd.ver = 14, .gmd.rel = 0, .gmd.step = 0, .step = STEP_A0 }, + { .gmd.ver = 14, .gmd.rel = 0, .gmd.step = 4, .step = STEP_B0 }, +}; + +static u8 gmd_to_intel_step(struct drm_i915_private *i915, + struct ip_version *gmd, + const struct gmd_to_intel_step *table, + int len) +{ + int i; + + for (i = 0; i < len; i++) { + if (table[i].gmd.ver == gmd->ver && + table[i].gmd.rel == gmd->rel && + table[i].gmd.step == gmd->step) + return table[i].step; + } + + drm_dbg(&i915->drm, "Using future steppings\n"); + return STEP_FUTURE; +} + static void pvc_step_init(struct drm_i915_private *i915, int pci_revid); void intel_step_init(struct drm_i915_private *i915) @@ -144,6 +186,24 @@ void intel_step_init(struct drm_i915_private *i915) int revid = INTEL_REVID(i915); struct intel_step_info step = {}; + if (HAS_GMD_ID(i915)) { + step.graphics_step = gmd_to_intel_step(i915, + &RUNTIME_INFO(i915)->graphics.ip, + gmd_graphics_table, + ARRAY_SIZE(gmd_graphics_table)); + step.media_step = gmd_to_intel_step(i915, + &RUNTIME_INFO(i915)->media.ip, + gmd_media_table, + ARRAY_SIZE(gmd_media_table)); + step.display_step = gmd_to_intel_step(i915, + &RUNTIME_INFO(i915)->display.ip, + gmd_display_table, + ARRAY_SIZE(gmd_display_table)); + RUNTIME_INFO(i915)->step = step; + + return; + } + if (IS_PONTEVECCHIO(i915)) { pvc_step_init(i915, revid); return; -- 2.34.1