diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dmc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.c | 131 |
1 files changed, 118 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index 7616a3906b9e..257cf662f9f4 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -28,6 +28,7 @@ #include "i915_reg.h" #include "intel_de.h" #include "intel_dmc.h" +#include "intel_dmc_regs.h" /** * DOC: DMC Firmware Support @@ -37,6 +38,10 @@ * low-power state and comes back to normal. */ +#define DMC_VERSION(major, minor) ((major) << 16 | (minor)) +#define DMC_VERSION_MAJOR(version) ((version) >> 16) +#define DMC_VERSION_MINOR(version) ((version) & 0xffff) + #define DMC_PATH(platform, major, minor) \ "i915/" \ __stringify(platform) "_dmc_ver" \ @@ -47,8 +52,8 @@ #define DISPLAY_VER12_DMC_MAX_FW_SIZE ICL_DMC_MAX_FW_SIZE -#define ADLP_DMC_PATH DMC_PATH(adlp, 2, 14) -#define ADLP_DMC_VERSION_REQUIRED DMC_VERSION(2, 14) +#define ADLP_DMC_PATH DMC_PATH(adlp, 2, 16) +#define ADLP_DMC_VERSION_REQUIRED DMC_VERSION(2, 16) MODULE_FIRMWARE(ADLP_DMC_PATH); #define ADLS_DMC_PATH DMC_PATH(adls, 2, 01) @@ -276,17 +281,8 @@ void intel_dmc_load_program(struct drm_i915_private *dev_priv) struct intel_dmc *dmc = &dev_priv->dmc; u32 id, i; - if (!HAS_DMC(dev_priv)) { - drm_err(&dev_priv->drm, - "No DMC support available for this platform\n"); + if (!intel_dmc_has_payload(dev_priv)) return; - } - - if (!dev_priv->dmc.dmc_info[DMC_FW_MAIN].payload) { - drm_err(&dev_priv->drm, - "Tried to program CSR with empty payload\n"); - return; - } assert_rpm_wakelock_held(&dev_priv->runtime_pm); @@ -314,6 +310,17 @@ void intel_dmc_load_program(struct drm_i915_private *dev_priv) gen9_set_dc_state_debugmask(dev_priv); } +void assert_dmc_loaded(struct drm_i915_private *i915) +{ + drm_WARN_ONCE(&i915->drm, + !intel_de_read(i915, DMC_PROGRAM(i915->dmc.dmc_info[DMC_FW_MAIN].start_mmioaddr, 0)), + "DMC program storage start is NULL\n"); + drm_WARN_ONCE(&i915->drm, !intel_de_read(i915, DMC_SSP_BASE), + "DMC SSP Base Not fine\n"); + drm_WARN_ONCE(&i915->drm, !intel_de_read(i915, DMC_HTP_SKL), + "DMC HTP Not fine\n"); +} + static bool fw_info_matches_stepping(const struct intel_fw_info *fw_info, const struct stepping_info *si) { @@ -697,7 +704,7 @@ void intel_dmc_ucode_init(struct drm_i915_private *dev_priv) dmc->fw_path = RKL_DMC_PATH; dmc->required_version = RKL_DMC_VERSION_REQUIRED; dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; - } else if (DISPLAY_VER(dev_priv) >= 12) { + } else if (IS_TIGERLAKE(dev_priv)) { dmc->fw_path = TGL_DMC_PATH; dmc->required_version = TGL_DMC_VERSION_REQUIRED; dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; @@ -808,3 +815,101 @@ void intel_dmc_ucode_fini(struct drm_i915_private *dev_priv) for (id = 0; id < DMC_FW_MAX; id++) kfree(dev_priv->dmc.dmc_info[id].payload); } + +void intel_dmc_print_error_state(struct drm_i915_error_state_buf *m, + struct drm_i915_private *i915) +{ + struct intel_dmc *dmc = &i915->dmc; + + if (!HAS_DMC(i915)) + return; + + i915_error_printf(m, "DMC loaded: %s\n", + str_yes_no(intel_dmc_has_payload(i915))); + i915_error_printf(m, "DMC fw version: %d.%d\n", + DMC_VERSION_MAJOR(dmc->version), + DMC_VERSION_MINOR(dmc->version)); +} + +static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused) +{ + struct drm_i915_private *i915 = m->private; + intel_wakeref_t wakeref; + struct intel_dmc *dmc; + i915_reg_t dc5_reg, dc6_reg = INVALID_MMIO_REG; + + if (!HAS_DMC(i915)) + return -ENODEV; + + dmc = &i915->dmc; + + wakeref = intel_runtime_pm_get(&i915->runtime_pm); + + seq_printf(m, "fw loaded: %s\n", + str_yes_no(intel_dmc_has_payload(i915))); + seq_printf(m, "path: %s\n", dmc->fw_path); + seq_printf(m, "Pipe A fw support: %s\n", + str_yes_no(GRAPHICS_VER(i915) >= 12)); + seq_printf(m, "Pipe A fw loaded: %s\n", + str_yes_no(dmc->dmc_info[DMC_FW_PIPEA].payload)); + seq_printf(m, "Pipe B fw support: %s\n", + str_yes_no(IS_ALDERLAKE_P(i915))); + seq_printf(m, "Pipe B fw loaded: %s\n", + str_yes_no(dmc->dmc_info[DMC_FW_PIPEB].payload)); + + if (!intel_dmc_has_payload(i915)) + goto out; + + seq_printf(m, "version: %d.%d\n", DMC_VERSION_MAJOR(dmc->version), + DMC_VERSION_MINOR(dmc->version)); + + if (DISPLAY_VER(i915) >= 12) { + if (IS_DGFX(i915)) { + dc5_reg = DG1_DMC_DEBUG_DC5_COUNT; + } else { + dc5_reg = TGL_DMC_DEBUG_DC5_COUNT; + dc6_reg = TGL_DMC_DEBUG_DC6_COUNT; + } + + /* + * NOTE: DMC_DEBUG3 is a general purpose reg. + * According to B.Specs:49196 DMC f/w reuses DC5/6 counter + * reg for DC3CO debugging and validation, + * but TGL DMC f/w is using DMC_DEBUG3 reg for DC3CO counter. + */ + seq_printf(m, "DC3CO count: %d\n", + intel_de_read(i915, IS_DGFX(i915) ? + DG1_DMC_DEBUG3 : TGL_DMC_DEBUG3)); + } else { + dc5_reg = IS_BROXTON(i915) ? BXT_DMC_DC3_DC5_COUNT : + SKL_DMC_DC3_DC5_COUNT; + if (!IS_GEMINILAKE(i915) && !IS_BROXTON(i915)) + dc6_reg = SKL_DMC_DC5_DC6_COUNT; + } + + seq_printf(m, "DC3 -> DC5 count: %d\n", intel_de_read(i915, dc5_reg)); + if (i915_mmio_reg_valid(dc6_reg)) + seq_printf(m, "DC5 -> DC6 count: %d\n", + intel_de_read(i915, dc6_reg)); + +out: + seq_printf(m, "program base: 0x%08x\n", + intel_de_read(i915, DMC_PROGRAM(dmc->dmc_info[DMC_FW_MAIN].start_mmioaddr, 0))); + seq_printf(m, "ssp base: 0x%08x\n", + intel_de_read(i915, DMC_SSP_BASE)); + seq_printf(m, "htp: 0x%08x\n", intel_de_read(i915, DMC_HTP_SKL)); + + intel_runtime_pm_put(&i915->runtime_pm, wakeref); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(intel_dmc_debugfs_status); + +void intel_dmc_debugfs_register(struct drm_i915_private *i915) +{ + struct drm_minor *minor = i915->drm.primary; + + debugfs_create_file("i915_dmc_info", 0444, minor->debugfs_root, + i915, &intel_dmc_debugfs_status_fops); +} |