From 451e05e20270454ef9a9c52e32e2f8863a368b04 Mon Sep 17 00:00:00 2001 From: Anusha Srivatsa Date: Mon, 21 Jun 2021 12:14:12 -0700 Subject: [PATCH] drm/i915/dmc: Introduce DMC_FW_MAIN This is a prep patch for Pipe DMC plugging. Add dmc_info struct in intel_dmc to have all common fields shared between all DMC's in the package. Add DMC_FW_MAIN(dmc_id 0) to refer to the blob. v2: Remove dmc_offset and start_mmioaddr from dmc_info struct (Jose) Cc: Souza, Jose Signed-off-by: Anusha Srivatsa Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20210621191415.29823-2-anusha.srivatsa@intel.com --- drivers/gpu/drm/i915/display/intel_dmc.c | 38 +++++++++++++++++--------------- drivers/gpu/drm/i915/display/intel_dmc.h | 18 ++++++++++----- 2 files changed, 33 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index 97308da..269a57d 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -239,7 +239,7 @@ struct stepping_info { bool intel_dmc_has_payload(struct drm_i915_private *i915) { - return i915->dmc.dmc_payload; + return i915->dmc.dmc_info[DMC_FW_MAIN].payload; } static const struct stepping_info skl_stepping_info[] = { @@ -316,7 +316,8 @@ static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv) */ void intel_dmc_load_program(struct drm_i915_private *dev_priv) { - u32 *payload = dev_priv->dmc.dmc_payload; + struct intel_dmc *dmc = &dev_priv->dmc; + struct dmc_fw_info *dmc_info = &dmc->dmc_info[DMC_FW_MAIN]; u32 i, fw_size; if (!HAS_DMC(dev_priv)) { @@ -325,26 +326,26 @@ void intel_dmc_load_program(struct drm_i915_private *dev_priv) return; } - if (!intel_dmc_has_payload(dev_priv)) { + if (!dev_priv->dmc.dmc_info[DMC_FW_MAIN].payload) { drm_err(&dev_priv->drm, "Tried to program CSR with empty payload\n"); return; } - fw_size = dev_priv->dmc.dmc_fw_size; + fw_size = dmc_info->dmc_fw_size; assert_rpm_wakelock_held(&dev_priv->runtime_pm); preempt_disable(); for (i = 0; i < fw_size; i++) intel_uncore_write_fw(&dev_priv->uncore, DMC_PROGRAM(i), - payload[i]); + dmc_info->payload[i]); preempt_enable(); - for (i = 0; i < dev_priv->dmc.mmio_count; i++) { - intel_de_write(dev_priv, dev_priv->dmc.mmioaddr[i], - dev_priv->dmc.mmiodata[i]); + for (i = 0; i < dmc_info->mmio_count; i++) { + intel_de_write(dev_priv, dmc_info->mmioaddr[i], + dmc_info->mmiodata[i]); } dev_priv->dmc.dc_state = 0; @@ -401,13 +402,14 @@ static u32 parse_dmc_fw_header(struct intel_dmc *dmc, size_t rem_size) { struct drm_i915_private *i915 = container_of(dmc, typeof(*i915), dmc); + struct dmc_fw_info *dmc_info = &dmc->dmc_info[DMC_FW_MAIN]; unsigned int header_len_bytes, dmc_header_size, payload_size, i; const u32 *mmioaddr, *mmiodata; u32 mmio_count, mmio_count_max; u8 *payload; - BUILD_BUG_ON(ARRAY_SIZE(dmc->mmioaddr) < DMC_V3_MAX_MMIO_COUNT || - ARRAY_SIZE(dmc->mmioaddr) < DMC_V1_MAX_MMIO_COUNT); + BUILD_BUG_ON(ARRAY_SIZE(dmc_info->mmioaddr) < DMC_V3_MAX_MMIO_COUNT || + ARRAY_SIZE(dmc_info->mmioaddr) < DMC_V1_MAX_MMIO_COUNT); /* * Check if we can access common fields, we will checkc again below @@ -469,10 +471,10 @@ static u32 parse_dmc_fw_header(struct intel_dmc *dmc, mmioaddr[i]); return 0; } - dmc->mmioaddr[i] = _MMIO(mmioaddr[i]); - dmc->mmiodata[i] = mmiodata[i]; + dmc_info->mmioaddr[i] = _MMIO(mmioaddr[i]); + dmc_info->mmiodata[i] = mmiodata[i]; } - dmc->mmio_count = mmio_count; + dmc_info->mmio_count = mmio_count; rem_size -= header_len_bytes; @@ -485,14 +487,14 @@ static u32 parse_dmc_fw_header(struct intel_dmc *dmc, drm_err(&i915->drm, "DMC FW too big (%u bytes)\n", payload_size); return 0; } - dmc->dmc_fw_size = dmc_header->fw_size; + dmc_info->dmc_fw_size = dmc_header->fw_size; - dmc->dmc_payload = kmalloc(payload_size, GFP_KERNEL); - if (!dmc->dmc_payload) + dmc_info->payload = kmalloc(payload_size, GFP_KERNEL); + if (!dmc_info->payload) return 0; payload = (u8 *)(dmc_header) + header_len_bytes; - memcpy(dmc->dmc_payload, payload, payload_size); + memcpy(dmc_info->payload, payload, payload_size); return header_len_bytes + payload_size; @@ -827,5 +829,5 @@ void intel_dmc_ucode_fini(struct drm_i915_private *dev_priv) intel_dmc_ucode_suspend(dev_priv); drm_WARN_ON(&dev_priv->drm, dev_priv->dmc.wakeref); - kfree(dev_priv->dmc.dmc_payload); + kfree(dev_priv->dmc.dmc_info[DMC_FW_MAIN].payload); } diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h index 4c22f56..b872f3a 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.h +++ b/drivers/gpu/drm/i915/display/intel_dmc.h @@ -16,17 +16,25 @@ struct drm_i915_private; #define DMC_VERSION_MAJOR(version) ((version) >> 16) #define DMC_VERSION_MINOR(version) ((version) & 0xffff) +enum { + DMC_FW_MAIN = 0, + DMC_FW_MAX +}; + struct intel_dmc { struct work_struct work; const char *fw_path; u32 required_version; u32 max_fw_size; /* bytes */ - u32 *dmc_payload; - u32 dmc_fw_size; /* dwords */ u32 version; - u32 mmio_count; - i915_reg_t mmioaddr[20]; - u32 mmiodata[20]; + struct dmc_fw_info { + u32 mmio_count; + i915_reg_t mmioaddr[20]; + u32 mmiodata[20]; + u32 dmc_fw_size; /*dwords */ + u32 *payload; + } dmc_info[DMC_FW_MAX]; + u32 dc_state; u32 target_dc_state; u32 allowed_dc_mask; -- 2.7.4