[PATCH v2 16/17] ASoC: Intel: avs: Code loading over CLDMA
Cezary Rojewski
cezary.rojewski at intel.com
Mon Feb 28 16:33:42 CET 2022
With CLDMA transfer implemented, make use of it to shape firmware,
library and module loading routines for SKL and KBL platforms.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
---
sound/soc/intel/avs/avs.h | 7 ++
sound/soc/intel/avs/loader.c | 159 +++++++++++++++++++++++++++++++++++
2 files changed, 166 insertions(+)
diff --git a/sound/soc/intel/avs/avs.h b/sound/soc/intel/avs/avs.h
index 2527d6170417..fb3520f32488 100644
--- a/sound/soc/intel/avs/avs.h
+++ b/sound/soc/intel/avs/avs.h
@@ -44,6 +44,8 @@ struct avs_dsp_ops {
#define avs_dsp_op(adev, op, ...) \
((adev)->spec->dsp_ops->op(adev, ## __VA_ARGS__))
+#define AVS_PLATATTR_CLDMA BIT_ULL(0)
+
#define avs_platattr_test(adev, attr) \
((adev)->spec->attributes & AVS_PLATATTR_##attr)
@@ -233,4 +235,9 @@ void avs_hda_l1sen_enable(struct avs_dev *adev, bool enable);
int avs_dsp_boot_firmware(struct avs_dev *adev, bool purge);
int avs_dsp_first_boot_firmware(struct avs_dev *adev);
+int avs_cldma_load_basefw(struct avs_dev *adev, struct firmware *fw);
+int avs_cldma_load_library(struct avs_dev *adev, struct firmware *lib, u32 id);
+int avs_cldma_transfer_modules(struct avs_dev *adev, bool load,
+ struct avs_module_entry *mods, u32 num_mods);
+
#endif /* __SOUND_SOC_INTEL_AVS_H */
diff --git a/sound/soc/intel/avs/loader.c b/sound/soc/intel/avs/loader.c
index 47e1f9a21e43..808880808da2 100644
--- a/sound/soc/intel/avs/loader.c
+++ b/sound/soc/intel/avs/loader.c
@@ -9,12 +9,24 @@
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <sound/hdaudio_ext.h>
#include "avs.h"
+#include "cldma.h"
#include "messages.h"
#include "registers.h"
+#define AVS_ROM_STS_MASK 0xFF
+#define AVS_ROM_INIT_DONE 0x1
+#define SKL_ROM_BASEFW_ENTERED 0xF
+#define AVS_ROM_INIT_POLLING_US 5
+#define AVS_ROM_INIT_TIMEOUT_US 300000
+
+#define AVS_FW_INIT_POLLING_US 500
+#define AVS_FW_INIT_TIMEOUT_US 3000000
#define AVS_FW_INIT_TIMEOUT_MS 3000
+#define AVS_CLDMA_START_DELAY_MS 100
+
#define AVS_ROOT_DIR "intel/avs"
#define AVS_BASEFW_FILENAME "dsp_basefw.bin"
#define AVS_EXT_MANIFEST_MAGIC 0x31454124
@@ -111,6 +123,144 @@ static int avs_fw_manifest_strip_verify(struct avs_dev *adev, struct firmware *f
return 0;
}
+int avs_cldma_load_basefw(struct avs_dev *adev, struct firmware *fw)
+{
+ struct hda_cldma *cl = &code_loader;
+ unsigned int reg;
+ int ret;
+
+ ret = avs_dsp_op(adev, power, AVS_MAIN_CORE_MASK, true);
+ if (ret < 0)
+ return ret;
+
+ ret = avs_dsp_op(adev, reset, AVS_MAIN_CORE_MASK, false);
+ if (ret < 0)
+ return ret;
+
+ ret = hda_cldma_reset(cl);
+ if (ret < 0) {
+ dev_err(adev->dev, "cldma reset failed: %d\n", ret);
+ return ret;
+ }
+ hda_cldma_setup(cl);
+
+ ret = avs_dsp_op(adev, stall, AVS_MAIN_CORE_MASK, false);
+ if (ret < 0)
+ return ret;
+
+ reinit_completion(&adev->fw_ready);
+ avs_dsp_op(adev, int_control, true);
+
+ /* await ROM init */
+ ret = snd_hdac_adsp_readl_poll(adev, AVS_FW_REG_STATUS(adev), reg,
+ (reg & AVS_ROM_INIT_DONE) == AVS_ROM_INIT_DONE,
+ AVS_ROM_INIT_POLLING_US, AVS_ROM_INIT_TIMEOUT_US);
+ if (ret < 0) {
+ dev_err(adev->dev, "rom init timeout: %d\n", ret);
+ avs_dsp_core_disable(adev, AVS_MAIN_CORE_MASK);
+ return ret;
+ }
+
+ hda_cldma_set_data(cl, (void *)fw->data, fw->size);
+ /* transfer firmware */
+ hda_cldma_transfer(cl, 0);
+ ret = snd_hdac_adsp_readl_poll(adev, AVS_FW_REG_STATUS(adev), reg,
+ (reg & AVS_ROM_STS_MASK) == SKL_ROM_BASEFW_ENTERED,
+ AVS_FW_INIT_POLLING_US, AVS_FW_INIT_TIMEOUT_US);
+ hda_cldma_stop(cl);
+ if (ret < 0) {
+ dev_err(adev->dev, "transfer fw failed: %d\n", ret);
+ avs_dsp_core_disable(adev, AVS_MAIN_CORE_MASK);
+ return ret;
+ }
+
+ return 0;
+}
+
+int avs_cldma_load_library(struct avs_dev *adev, struct firmware *lib, u32 id)
+{
+ struct hda_cldma *cl = &code_loader;
+ int ret;
+
+ hda_cldma_set_data(cl, (void *)lib->data, lib->size);
+ /* transfer modules manifest */
+ hda_cldma_transfer(cl, msecs_to_jiffies(AVS_CLDMA_START_DELAY_MS));
+
+ /* DMA id ignored as there is only ever one code-loader DMA */
+ ret = avs_ipc_load_library(adev, 0, id);
+ hda_cldma_stop(cl);
+
+ if (ret) {
+ ret = AVS_IPC_RET(ret);
+ dev_err(adev->dev, "transfer lib %d failed: %d\n", id, ret);
+ }
+
+ return ret;
+}
+
+static int avs_cldma_load_module(struct avs_dev *adev, struct avs_module_entry *mentry)
+{
+ struct hda_cldma *cl = &code_loader;
+ const struct firmware *mod;
+ char *mod_name;
+ int ret;
+
+ mod_name = kasprintf(GFP_KERNEL, "%s/%s/dsp_mod_%pUL.bin", AVS_ROOT_DIR,
+ adev->spec->name, mentry->uuid.b);
+ if (!mod_name)
+ return -ENOMEM;
+
+ ret = avs_request_firmware(adev, &mod, mod_name);
+ kfree(mod_name);
+ if (ret < 0)
+ return ret;
+
+ hda_cldma_set_data(cl, (void *)mod->data, mod->size);
+ hda_cldma_transfer(cl, msecs_to_jiffies(AVS_CLDMA_START_DELAY_MS));
+ ret = avs_ipc_load_modules(adev, &mentry->module_id, 1);
+ hda_cldma_stop(cl);
+
+ if (ret) {
+ dev_err(adev->dev, "load module %d failed: %d\n", mentry->module_id, ret);
+ avs_release_last_firmware(adev);
+ return AVS_IPC_RET(ret);
+ }
+
+ return 0;
+}
+
+int avs_cldma_transfer_modules(struct avs_dev *adev, bool load,
+ struct avs_module_entry *mods, u32 num_mods)
+{
+ u16 *mod_ids;
+ int ret, i;
+
+ /* Either load to DSP or unload them to free space. */
+ if (load) {
+ for (i = 0; i < num_mods; i++) {
+ ret = avs_cldma_load_module(adev, &mods[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+ }
+
+ mod_ids = kcalloc(num_mods, sizeof(u16), GFP_KERNEL);
+ if (!mod_ids)
+ return -ENOMEM;
+
+ for (i = 0; i < num_mods; i++)
+ mod_ids[i] = mods[i].module_id;
+
+ ret = avs_ipc_unload_modules(adev, mod_ids, num_mods);
+ kfree(mod_ids);
+ if (ret)
+ return AVS_IPC_RET(ret);
+
+ return 0;
+}
+
static int avs_dsp_load_basefw(struct avs_dev *adev)
{
const struct avs_fw_version *min_req;
@@ -196,6 +346,15 @@ int avs_dsp_first_boot_firmware(struct avs_dev *adev)
{
int ret, i;
+ if (avs_platattr_test(adev, CLDMA)) {
+ ret = hda_cldma_init(&code_loader, &adev->base.core,
+ adev->dsp_ba, AVS_CL_DEFAULT_BUFFER_SIZE);
+ if (ret < 0) {
+ dev_err(adev->dev, "cldma init failed: %d\n", ret);
+ return ret;
+ }
+ }
+
ret = avs_dsp_boot_firmware(adev, true);
if (ret < 0) {
dev_err(adev->dev, "firmware boot failed: %d\n", ret);
--
2.25.1
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