diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dmc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.c | 185 |
1 files changed, 119 insertions, 66 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index 8357816244..cbd2ac5671 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -22,6 +22,7 @@ * */ +#include <linux/debugfs.h> #include <linux/firmware.h> #include "i915_drv.h" @@ -38,6 +39,8 @@ * low-power state and comes back to normal. */ +#define INTEL_DMC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git" + enum intel_dmc_id { DMC_FW_MAIN = 0, DMC_FW_PIPEA, @@ -71,6 +74,21 @@ static struct intel_dmc *i915_to_dmc(struct drm_i915_private *i915) return i915->display.dmc.dmc; } +static const char *dmc_firmware_param(struct drm_i915_private *i915) +{ + const char *p = i915->display.params.dmc_firmware_path; + + return p && *p ? p : NULL; +} + +static bool dmc_firmware_param_disabled(struct drm_i915_private *i915) +{ + const char *p = dmc_firmware_param(i915); + + /* Magic path to indicate disabled */ + return p && !strcmp(p, "/dev/null"); +} + #define DMC_VERSION(major, minor) ((major) << 16 | (minor)) #define DMC_VERSION_MAJOR(version) ((version) >> 16) #define DMC_VERSION_MINOR(version) ((version) & 0xffff) @@ -89,10 +107,14 @@ static struct intel_dmc *i915_to_dmc(struct drm_i915_private *i915) __stringify(major) "_" \ __stringify(minor) ".bin" +#define XE2LPD_DMC_MAX_FW_SIZE 0x8000 #define XELPDP_DMC_MAX_FW_SIZE 0x7000 #define DISPLAY_VER13_DMC_MAX_FW_SIZE 0x20000 #define DISPLAY_VER12_DMC_MAX_FW_SIZE ICL_DMC_MAX_FW_SIZE +#define XE2LPD_DMC_PATH DMC_PATH(xe2lpd) +MODULE_FIRMWARE(XE2LPD_DMC_PATH); + #define MTL_DMC_PATH DMC_PATH(mtl) MODULE_FIRMWARE(MTL_DMC_PATH); @@ -136,6 +158,59 @@ MODULE_FIRMWARE(SKL_DMC_PATH); #define BXT_DMC_MAX_FW_SIZE 0x3000 MODULE_FIRMWARE(BXT_DMC_PATH); +static const char *dmc_firmware_default(struct drm_i915_private *i915, u32 *size) +{ + const char *fw_path = NULL; + u32 max_fw_size = 0; + + if (DISPLAY_VER_FULL(i915) == IP_VER(20, 0)) { + fw_path = XE2LPD_DMC_PATH; + max_fw_size = XE2LPD_DMC_MAX_FW_SIZE; + } else if (DISPLAY_VER_FULL(i915) == IP_VER(14, 0)) { + fw_path = MTL_DMC_PATH; + max_fw_size = XELPDP_DMC_MAX_FW_SIZE; + } else if (IS_DG2(i915)) { + fw_path = DG2_DMC_PATH; + max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE; + } else if (IS_ALDERLAKE_P(i915)) { + fw_path = ADLP_DMC_PATH; + max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE; + } else if (IS_ALDERLAKE_S(i915)) { + fw_path = ADLS_DMC_PATH; + max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; + } else if (IS_DG1(i915)) { + fw_path = DG1_DMC_PATH; + max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; + } else if (IS_ROCKETLAKE(i915)) { + fw_path = RKL_DMC_PATH; + max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; + } else if (IS_TIGERLAKE(i915)) { + fw_path = TGL_DMC_PATH; + max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; + } else if (DISPLAY_VER(i915) == 11) { + fw_path = ICL_DMC_PATH; + max_fw_size = ICL_DMC_MAX_FW_SIZE; + } else if (IS_GEMINILAKE(i915)) { + fw_path = GLK_DMC_PATH; + max_fw_size = GLK_DMC_MAX_FW_SIZE; + } else if (IS_KABYLAKE(i915) || + IS_COFFEELAKE(i915) || + IS_COMETLAKE(i915)) { + fw_path = KBL_DMC_PATH; + max_fw_size = KBL_DMC_MAX_FW_SIZE; + } else if (IS_SKYLAKE(i915)) { + fw_path = SKL_DMC_PATH; + max_fw_size = SKL_DMC_MAX_FW_SIZE; + } else if (IS_BROXTON(i915)) { + fw_path = BXT_DMC_PATH; + max_fw_size = BXT_DMC_MAX_FW_SIZE; + } + + *size = max_fw_size; + + return fw_path; +} + #define DMC_DEFAULT_FW_OFFSET 0xFFFFFFFF #define PACKAGE_MAX_FW_INFO_ENTRIES 20 #define PACKAGE_V2_MAX_FW_INFO_ENTRIES 32 @@ -546,6 +621,8 @@ void intel_dmc_disable_program(struct drm_i915_private *i915) pipedmc_clock_gating_wa(i915, true); disable_all_event_handlers(i915); pipedmc_clock_gating_wa(i915, false); + + intel_dmc_wl_disable(&i915->display); } void assert_dmc_loaded(struct drm_i915_private *i915) @@ -845,7 +922,7 @@ static u32 parse_dmc_fw_css(struct intel_dmc *dmc, return sizeof(struct intel_css_header); } -static void parse_dmc_fw(struct intel_dmc *dmc, const struct firmware *fw) +static int parse_dmc_fw(struct intel_dmc *dmc, const struct firmware *fw) { struct drm_i915_private *i915 = dmc->i915; struct intel_css_header *css_header; @@ -858,13 +935,13 @@ static void parse_dmc_fw(struct intel_dmc *dmc, const struct firmware *fw) u32 r, offset; if (!fw) - return; + return -EINVAL; /* Extract CSS Header information */ css_header = (struct intel_css_header *)fw->data; r = parse_dmc_fw_css(dmc, css_header, fw->size); if (!r) - return; + return -EINVAL; readcount += r; @@ -872,7 +949,7 @@ static void parse_dmc_fw(struct intel_dmc *dmc, const struct firmware *fw) package_header = (struct intel_package_header *)&fw->data[readcount]; r = parse_dmc_fw_package(dmc, package_header, si, fw->size - readcount); if (!r) - return; + return -EINVAL; readcount += r; @@ -889,6 +966,13 @@ static void parse_dmc_fw(struct intel_dmc *dmc, const struct firmware *fw) dmc_header = (struct intel_dmc_header_base *)&fw->data[offset]; parse_dmc_fw_header(dmc, dmc_header, fw->size - offset, dmc_id); } + + if (!intel_dmc_has_payload(i915)) { + drm_err(&i915->drm, "DMC firmware main program not found\n"); + return -ENOENT; + } + + return 0; } static void intel_dmc_runtime_pm_get(struct drm_i915_private *i915) @@ -923,7 +1007,7 @@ static void dmc_load_work_fn(struct work_struct *work) err = request_firmware(&fw, dmc->fw_path, i915->drm.dev); - if (err == -ENOENT && !i915->params.dmc_firmware_path) { + if (err == -ENOENT && !dmc_firmware_param(i915)) { fallback_path = dmc_fallback_path(i915); if (fallback_path) { drm_dbg_kms(&i915->drm, "%s not found, falling back to %s\n", @@ -934,24 +1018,31 @@ static void dmc_load_work_fn(struct work_struct *work) } } - parse_dmc_fw(dmc, fw); - - if (intel_dmc_has_payload(i915)) { - intel_dmc_load_program(i915); - intel_dmc_runtime_pm_put(i915); - - drm_info(&i915->drm, "Finished loading DMC firmware %s (v%u.%u)\n", - dmc->fw_path, DMC_VERSION_MAJOR(dmc->version), - DMC_VERSION_MINOR(dmc->version)); - } else { + if (err) { drm_notice(&i915->drm, - "Failed to load DMC firmware %s." - " Disabling runtime power management.\n", - dmc->fw_path); + "Failed to load DMC firmware %s (%pe). Disabling runtime power management.\n", + dmc->fw_path, ERR_PTR(err)); drm_notice(&i915->drm, "DMC firmware homepage: %s", - INTEL_UC_FIRMWARE_URL); + INTEL_DMC_FIRMWARE_URL); + return; } + err = parse_dmc_fw(dmc, fw); + if (err) { + drm_notice(&i915->drm, + "Failed to parse DMC firmware %s (%pe). Disabling runtime power management.\n", + dmc->fw_path, ERR_PTR(err)); + goto out; + } + + intel_dmc_load_program(i915); + intel_dmc_runtime_pm_put(i915); + + drm_info(&i915->drm, "Finished loading DMC firmware %s (v%u.%u)\n", + dmc->fw_path, DMC_VERSION_MAJOR(dmc->version), + DMC_VERSION_MINOR(dmc->version)); + +out: release_firmware(fw); } @@ -987,56 +1078,16 @@ void intel_dmc_init(struct drm_i915_private *i915) INIT_WORK(&dmc->work, dmc_load_work_fn); - if (DISPLAY_VER_FULL(i915) == IP_VER(14, 0)) { - dmc->fw_path = MTL_DMC_PATH; - dmc->max_fw_size = XELPDP_DMC_MAX_FW_SIZE; - } else if (IS_DG2(i915)) { - dmc->fw_path = DG2_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE; - } else if (IS_ALDERLAKE_P(i915)) { - dmc->fw_path = ADLP_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE; - } else if (IS_ALDERLAKE_S(i915)) { - dmc->fw_path = ADLS_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; - } else if (IS_DG1(i915)) { - dmc->fw_path = DG1_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; - } else if (IS_ROCKETLAKE(i915)) { - dmc->fw_path = RKL_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; - } else if (IS_TIGERLAKE(i915)) { - dmc->fw_path = TGL_DMC_PATH; - dmc->max_fw_size = DISPLAY_VER12_DMC_MAX_FW_SIZE; - } else if (DISPLAY_VER(i915) == 11) { - dmc->fw_path = ICL_DMC_PATH; - dmc->max_fw_size = ICL_DMC_MAX_FW_SIZE; - } else if (IS_GEMINILAKE(i915)) { - dmc->fw_path = GLK_DMC_PATH; - dmc->max_fw_size = GLK_DMC_MAX_FW_SIZE; - } else if (IS_KABYLAKE(i915) || - IS_COFFEELAKE(i915) || - IS_COMETLAKE(i915)) { - dmc->fw_path = KBL_DMC_PATH; - dmc->max_fw_size = KBL_DMC_MAX_FW_SIZE; - } else if (IS_SKYLAKE(i915)) { - dmc->fw_path = SKL_DMC_PATH; - dmc->max_fw_size = SKL_DMC_MAX_FW_SIZE; - } else if (IS_BROXTON(i915)) { - dmc->fw_path = BXT_DMC_PATH; - dmc->max_fw_size = BXT_DMC_MAX_FW_SIZE; - } - - if (i915->params.dmc_firmware_path) { - if (strlen(i915->params.dmc_firmware_path) == 0) { - drm_info(&i915->drm, - "Disabling DMC firmware and runtime PM\n"); - goto out; - } + dmc->fw_path = dmc_firmware_default(i915, &dmc->max_fw_size); - dmc->fw_path = i915->params.dmc_firmware_path; + if (dmc_firmware_param_disabled(i915)) { + drm_info(&i915->drm, "Disabling DMC firmware and runtime PM\n"); + goto out; } + if (dmc_firmware_param(i915)) + dmc->fw_path = dmc_firmware_param(i915); + if (!dmc->fw_path) { drm_dbg_kms(&i915->drm, "No known DMC firmware for platform, disabling runtime PM\n"); @@ -1072,6 +1123,8 @@ void intel_dmc_suspend(struct drm_i915_private *i915) if (dmc) flush_work(&dmc->work); + intel_dmc_wl_disable(&i915->display); + /* Drop the reference held in case DMC isn't loaded. */ if (!intel_dmc_has_payload(i915)) intel_dmc_runtime_pm_put(i915); |