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-rw-r--r--sound/soc/intel/catpt/loader.c671
1 files changed, 671 insertions, 0 deletions
diff --git a/sound/soc/intel/catpt/loader.c b/sound/soc/intel/catpt/loader.c
new file mode 100644
index 0000000000..ff7b8f0d34
--- /dev/null
+++ b/sound/soc/intel/catpt/loader.c
@@ -0,0 +1,671 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2020 Intel Corporation. All rights reserved.
+//
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/slab.h>
+#include "core.h"
+#include "registers.h"
+
+/* FW load (200ms) plus operational delays */
+#define FW_READY_TIMEOUT_MS 250
+
+#define FW_SIGNATURE "$SST"
+#define FW_SIGNATURE_SIZE 4
+
+struct catpt_fw_hdr {
+ char signature[FW_SIGNATURE_SIZE];
+ u32 file_size;
+ u32 modules;
+ u32 file_format;
+ u32 reserved[4];
+} __packed;
+
+struct catpt_fw_mod_hdr {
+ char signature[FW_SIGNATURE_SIZE];
+ u32 mod_size;
+ u32 blocks;
+ u16 slot;
+ u16 module_id;
+ u32 entry_point;
+ u32 persistent_size;
+ u32 scratch_size;
+} __packed;
+
+enum catpt_ram_type {
+ CATPT_RAM_TYPE_IRAM = 1,
+ CATPT_RAM_TYPE_DRAM = 2,
+ /* DRAM with module's initial state */
+ CATPT_RAM_TYPE_INSTANCE = 3,
+};
+
+struct catpt_fw_block_hdr {
+ u32 ram_type;
+ u32 size;
+ u32 ram_offset;
+ u32 rsvd;
+} __packed;
+
+void catpt_sram_init(struct resource *sram, u32 start, u32 size)
+{
+ sram->start = start;
+ sram->end = start + size - 1;
+}
+
+void catpt_sram_free(struct resource *sram)
+{
+ struct resource *res, *save;
+
+ for (res = sram->child; res;) {
+ save = res->sibling;
+ release_resource(res);
+ kfree(res);
+ res = save;
+ }
+}
+
+struct resource *
+catpt_request_region(struct resource *root, resource_size_t size)
+{
+ struct resource *res = root->child;
+ resource_size_t addr = root->start;
+
+ for (;;) {
+ if (res->start - addr >= size)
+ break;
+ addr = res->end + 1;
+ res = res->sibling;
+ if (!res)
+ return NULL;
+ }
+
+ return __request_region(root, addr, size, NULL, 0);
+}
+
+int catpt_store_streams_context(struct catpt_dev *cdev, struct dma_chan *chan)
+{
+ struct catpt_stream_runtime *stream;
+
+ list_for_each_entry(stream, &cdev->stream_list, node) {
+ u32 off, size;
+ int ret;
+
+ off = stream->persistent->start;
+ size = resource_size(stream->persistent);
+ dev_dbg(cdev->dev, "storing stream %d ctx: off 0x%08x size %d\n",
+ stream->info.stream_hw_id, off, size);
+
+ ret = catpt_dma_memcpy_fromdsp(cdev, chan,
+ cdev->dxbuf_paddr + off,
+ cdev->lpe_base + off,
+ ALIGN(size, 4));
+ if (ret) {
+ dev_err(cdev->dev, "memcpy fromdsp failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+int catpt_store_module_states(struct catpt_dev *cdev, struct dma_chan *chan)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cdev->modules); i++) {
+ struct catpt_module_type *type;
+ u32 off;
+ int ret;
+
+ type = &cdev->modules[i];
+ if (!type->loaded || !type->state_size)
+ continue;
+
+ off = type->state_offset;
+ dev_dbg(cdev->dev, "storing mod %d state: off 0x%08x size %d\n",
+ i, off, type->state_size);
+
+ ret = catpt_dma_memcpy_fromdsp(cdev, chan,
+ cdev->dxbuf_paddr + off,
+ cdev->lpe_base + off,
+ ALIGN(type->state_size, 4));
+ if (ret) {
+ dev_err(cdev->dev, "memcpy fromdsp failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+int catpt_store_memdumps(struct catpt_dev *cdev, struct dma_chan *chan)
+{
+ int i;
+
+ for (i = 0; i < cdev->dx_ctx.num_meminfo; i++) {
+ struct catpt_save_meminfo *info;
+ u32 off;
+ int ret;
+
+ info = &cdev->dx_ctx.meminfo[i];
+ if (info->source != CATPT_DX_TYPE_MEMORY_DUMP)
+ continue;
+
+ off = catpt_to_host_offset(info->offset);
+ if (off < cdev->dram.start || off > cdev->dram.end)
+ continue;
+
+ dev_dbg(cdev->dev, "storing memdump: off 0x%08x size %d\n",
+ off, info->size);
+
+ ret = catpt_dma_memcpy_fromdsp(cdev, chan,
+ cdev->dxbuf_paddr + off,
+ cdev->lpe_base + off,
+ ALIGN(info->size, 4));
+ if (ret) {
+ dev_err(cdev->dev, "memcpy fromdsp failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int
+catpt_restore_streams_context(struct catpt_dev *cdev, struct dma_chan *chan)
+{
+ struct catpt_stream_runtime *stream;
+
+ list_for_each_entry(stream, &cdev->stream_list, node) {
+ u32 off, size;
+ int ret;
+
+ off = stream->persistent->start;
+ size = resource_size(stream->persistent);
+ dev_dbg(cdev->dev, "restoring stream %d ctx: off 0x%08x size %d\n",
+ stream->info.stream_hw_id, off, size);
+
+ ret = catpt_dma_memcpy_todsp(cdev, chan,
+ cdev->lpe_base + off,
+ cdev->dxbuf_paddr + off,
+ ALIGN(size, 4));
+ if (ret) {
+ dev_err(cdev->dev, "memcpy fromdsp failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int catpt_restore_memdumps(struct catpt_dev *cdev, struct dma_chan *chan)
+{
+ int i;
+
+ for (i = 0; i < cdev->dx_ctx.num_meminfo; i++) {
+ struct catpt_save_meminfo *info;
+ u32 off;
+ int ret;
+
+ info = &cdev->dx_ctx.meminfo[i];
+ if (info->source != CATPT_DX_TYPE_MEMORY_DUMP)
+ continue;
+
+ off = catpt_to_host_offset(info->offset);
+ if (off < cdev->dram.start || off > cdev->dram.end)
+ continue;
+
+ dev_dbg(cdev->dev, "restoring memdump: off 0x%08x size %d\n",
+ off, info->size);
+
+ ret = catpt_dma_memcpy_todsp(cdev, chan,
+ cdev->lpe_base + off,
+ cdev->dxbuf_paddr + off,
+ ALIGN(info->size, 4));
+ if (ret) {
+ dev_err(cdev->dev, "restore block failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int catpt_restore_fwimage(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_block_hdr *blk)
+{
+ struct resource r1, r2, common;
+ int i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ blk, sizeof(*blk), false);
+
+ r1.start = cdev->dram.start + blk->ram_offset;
+ r1.end = r1.start + blk->size - 1;
+ /* advance to data area */
+ paddr += sizeof(*blk);
+
+ for (i = 0; i < cdev->dx_ctx.num_meminfo; i++) {
+ struct catpt_save_meminfo *info;
+ u32 off;
+ int ret;
+
+ info = &cdev->dx_ctx.meminfo[i];
+
+ if (info->source != CATPT_DX_TYPE_FW_IMAGE)
+ continue;
+
+ off = catpt_to_host_offset(info->offset);
+ if (off < cdev->dram.start || off > cdev->dram.end)
+ continue;
+
+ r2.start = off;
+ r2.end = r2.start + info->size - 1;
+
+ if (!resource_intersection(&r2, &r1, &common))
+ continue;
+ /* calculate start offset of common data area */
+ off = common.start - r1.start;
+
+ dev_dbg(cdev->dev, "restoring fwimage: %pr\n", &common);
+
+ ret = catpt_dma_memcpy_todsp(cdev, chan, common.start,
+ paddr + off,
+ resource_size(&common));
+ if (ret) {
+ dev_err(cdev->dev, "memcpy todsp failed: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int catpt_load_block(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_block_hdr *blk, bool alloc)
+{
+ struct resource *sram, *res;
+ dma_addr_t dst_addr;
+ int ret;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ blk, sizeof(*blk), false);
+
+ switch (blk->ram_type) {
+ case CATPT_RAM_TYPE_IRAM:
+ sram = &cdev->iram;
+ break;
+ default:
+ sram = &cdev->dram;
+ break;
+ }
+
+ dst_addr = sram->start + blk->ram_offset;
+ if (alloc) {
+ res = __request_region(sram, dst_addr, blk->size, NULL, 0);
+ if (!res)
+ return -EBUSY;
+ }
+
+ /* advance to data area */
+ paddr += sizeof(*blk);
+
+ ret = catpt_dma_memcpy_todsp(cdev, chan, dst_addr, paddr, blk->size);
+ if (ret) {
+ dev_err(cdev->dev, "memcpy error: %d\n", ret);
+ __release_region(sram, dst_addr, blk->size);
+ }
+
+ return ret;
+}
+
+static int catpt_restore_basefw(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_mod_hdr *basefw)
+{
+ u32 offset = sizeof(*basefw);
+ int ret, i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ basefw, sizeof(*basefw), false);
+
+ /* restore basefw image */
+ for (i = 0; i < basefw->blocks; i++) {
+ struct catpt_fw_block_hdr *blk;
+
+ blk = (struct catpt_fw_block_hdr *)((u8 *)basefw + offset);
+
+ switch (blk->ram_type) {
+ case CATPT_RAM_TYPE_IRAM:
+ ret = catpt_load_block(cdev, chan, paddr + offset,
+ blk, false);
+ break;
+ default:
+ ret = catpt_restore_fwimage(cdev, chan, paddr + offset,
+ blk);
+ break;
+ }
+
+ if (ret) {
+ dev_err(cdev->dev, "restore block failed: %d\n", ret);
+ return ret;
+ }
+
+ offset += sizeof(*blk) + blk->size;
+ }
+
+ /* then proceed with memory dumps */
+ ret = catpt_restore_memdumps(cdev, chan);
+ if (ret)
+ dev_err(cdev->dev, "restore memdumps failed: %d\n", ret);
+
+ return ret;
+}
+
+static int catpt_restore_module(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_mod_hdr *mod)
+{
+ u32 offset = sizeof(*mod);
+ int i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ mod, sizeof(*mod), false);
+
+ for (i = 0; i < mod->blocks; i++) {
+ struct catpt_fw_block_hdr *blk;
+ int ret;
+
+ blk = (struct catpt_fw_block_hdr *)((u8 *)mod + offset);
+
+ switch (blk->ram_type) {
+ case CATPT_RAM_TYPE_INSTANCE:
+ /* restore module state */
+ ret = catpt_dma_memcpy_todsp(cdev, chan,
+ cdev->lpe_base + blk->ram_offset,
+ cdev->dxbuf_paddr + blk->ram_offset,
+ ALIGN(blk->size, 4));
+ break;
+ default:
+ ret = catpt_load_block(cdev, chan, paddr + offset,
+ blk, false);
+ break;
+ }
+
+ if (ret) {
+ dev_err(cdev->dev, "restore block failed: %d\n", ret);
+ return ret;
+ }
+
+ offset += sizeof(*blk) + blk->size;
+ }
+
+ return 0;
+}
+
+static int catpt_load_module(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_mod_hdr *mod)
+{
+ struct catpt_module_type *type;
+ u32 offset = sizeof(*mod);
+ int i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ mod, sizeof(*mod), false);
+
+ type = &cdev->modules[mod->module_id];
+
+ for (i = 0; i < mod->blocks; i++) {
+ struct catpt_fw_block_hdr *blk;
+ int ret;
+
+ blk = (struct catpt_fw_block_hdr *)((u8 *)mod + offset);
+
+ ret = catpt_load_block(cdev, chan, paddr + offset, blk, true);
+ if (ret) {
+ dev_err(cdev->dev, "load block failed: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * Save state window coordinates - these will be
+ * used to capture module state on D0 exit.
+ */
+ if (blk->ram_type == CATPT_RAM_TYPE_INSTANCE) {
+ type->state_offset = blk->ram_offset;
+ type->state_size = blk->size;
+ }
+
+ offset += sizeof(*blk) + blk->size;
+ }
+
+ /* init module type static info */
+ type->loaded = true;
+ /* DSP expects address from module header substracted by 4 */
+ type->entry_point = mod->entry_point - 4;
+ type->persistent_size = mod->persistent_size;
+ type->scratch_size = mod->scratch_size;
+
+ return 0;
+}
+
+static int catpt_restore_firmware(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_hdr *fw)
+{
+ u32 offset = sizeof(*fw);
+ int i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ fw, sizeof(*fw), false);
+
+ for (i = 0; i < fw->modules; i++) {
+ struct catpt_fw_mod_hdr *mod;
+ int ret;
+
+ mod = (struct catpt_fw_mod_hdr *)((u8 *)fw + offset);
+ if (strncmp(fw->signature, mod->signature,
+ FW_SIGNATURE_SIZE)) {
+ dev_err(cdev->dev, "module signature mismatch\n");
+ return -EINVAL;
+ }
+
+ if (mod->module_id > CATPT_MODID_LAST)
+ return -EINVAL;
+
+ switch (mod->module_id) {
+ case CATPT_MODID_BASE_FW:
+ ret = catpt_restore_basefw(cdev, chan, paddr + offset,
+ mod);
+ break;
+ default:
+ ret = catpt_restore_module(cdev, chan, paddr + offset,
+ mod);
+ break;
+ }
+
+ if (ret) {
+ dev_err(cdev->dev, "restore module failed: %d\n", ret);
+ return ret;
+ }
+
+ offset += sizeof(*mod) + mod->mod_size;
+ }
+
+ return 0;
+}
+
+static int catpt_load_firmware(struct catpt_dev *cdev,
+ struct dma_chan *chan, dma_addr_t paddr,
+ struct catpt_fw_hdr *fw)
+{
+ u32 offset = sizeof(*fw);
+ int i;
+
+ print_hex_dump_debug(__func__, DUMP_PREFIX_OFFSET, 8, 4,
+ fw, sizeof(*fw), false);
+
+ for (i = 0; i < fw->modules; i++) {
+ struct catpt_fw_mod_hdr *mod;
+ int ret;
+
+ mod = (struct catpt_fw_mod_hdr *)((u8 *)fw + offset);
+ if (strncmp(fw->signature, mod->signature,
+ FW_SIGNATURE_SIZE)) {
+ dev_err(cdev->dev, "module signature mismatch\n");
+ return -EINVAL;
+ }
+
+ if (mod->module_id > CATPT_MODID_LAST)
+ return -EINVAL;
+
+ ret = catpt_load_module(cdev, chan, paddr + offset, mod);
+ if (ret) {
+ dev_err(cdev->dev, "load module failed: %d\n", ret);
+ return ret;
+ }
+
+ offset += sizeof(*mod) + mod->mod_size;
+ }
+
+ return 0;
+}
+
+static int catpt_load_image(struct catpt_dev *cdev, struct dma_chan *chan,
+ const char *name, const char *signature,
+ bool restore)
+{
+ struct catpt_fw_hdr *fw;
+ struct firmware *img;
+ dma_addr_t paddr;
+ void *vaddr;
+ int ret;
+
+ ret = request_firmware((const struct firmware **)&img, name, cdev->dev);
+ if (ret)
+ return ret;
+
+ fw = (struct catpt_fw_hdr *)img->data;
+ if (strncmp(fw->signature, signature, FW_SIGNATURE_SIZE)) {
+ dev_err(cdev->dev, "firmware signature mismatch\n");
+ ret = -EINVAL;
+ goto release_fw;
+ }
+
+ vaddr = dma_alloc_coherent(cdev->dev, img->size, &paddr, GFP_KERNEL);
+ if (!vaddr) {
+ ret = -ENOMEM;
+ goto release_fw;
+ }
+
+ memcpy(vaddr, img->data, img->size);
+ fw = (struct catpt_fw_hdr *)vaddr;
+ if (restore)
+ ret = catpt_restore_firmware(cdev, chan, paddr, fw);
+ else
+ ret = catpt_load_firmware(cdev, chan, paddr, fw);
+
+ dma_free_coherent(cdev->dev, img->size, vaddr, paddr);
+release_fw:
+ release_firmware(img);
+ return ret;
+}
+
+static int catpt_load_images(struct catpt_dev *cdev, bool restore)
+{
+ static const char *const names[] = {
+ "intel/IntcSST1.bin",
+ "intel/IntcSST2.bin",
+ };
+ struct dma_chan *chan;
+ int ret;
+
+ chan = catpt_dma_request_config_chan(cdev);
+ if (IS_ERR(chan))
+ return PTR_ERR(chan);
+
+ ret = catpt_load_image(cdev, chan, names[cdev->spec->core_id - 1],
+ FW_SIGNATURE, restore);
+ if (ret)
+ goto release_dma_chan;
+
+ if (!restore)
+ goto release_dma_chan;
+ ret = catpt_restore_streams_context(cdev, chan);
+ if (ret)
+ dev_err(cdev->dev, "restore streams ctx failed: %d\n", ret);
+release_dma_chan:
+ dma_release_channel(chan);
+ return ret;
+}
+
+int catpt_boot_firmware(struct catpt_dev *cdev, bool restore)
+{
+ int ret;
+
+ catpt_dsp_stall(cdev, true);
+
+ ret = catpt_load_images(cdev, restore);
+ if (ret) {
+ dev_err(cdev->dev, "load binaries failed: %d\n", ret);
+ return ret;
+ }
+
+ reinit_completion(&cdev->fw_ready);
+ catpt_dsp_stall(cdev, false);
+
+ ret = wait_for_completion_timeout(&cdev->fw_ready,
+ msecs_to_jiffies(FW_READY_TIMEOUT_MS));
+ if (!ret) {
+ dev_err(cdev->dev, "firmware ready timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ /* update sram pg & clock once done booting */
+ catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);
+ catpt_dsp_update_srampge(cdev, &cdev->iram, cdev->spec->iram_mask);
+
+ return catpt_dsp_update_lpclock(cdev);
+}
+
+int catpt_first_boot_firmware(struct catpt_dev *cdev)
+{
+ struct resource *res;
+ int ret;
+
+ ret = catpt_boot_firmware(cdev, false);
+ if (ret) {
+ dev_err(cdev->dev, "basefw boot failed: %d\n", ret);
+ return ret;
+ }
+
+ /* restrict FW Core dump area */
+ __request_region(&cdev->dram, 0, 0x200, NULL, 0);
+ /* restrict entire area following BASE_FW - highest offset in DRAM */
+ for (res = cdev->dram.child; res->sibling; res = res->sibling)
+ ;
+ __request_region(&cdev->dram, res->end + 1,
+ cdev->dram.end - res->end, NULL, 0);
+
+ ret = catpt_ipc_get_mixer_stream_info(cdev, &cdev->mixer);
+ if (ret)
+ return CATPT_IPC_ERROR(ret);
+
+ ret = catpt_arm_stream_templates(cdev);
+ if (ret) {
+ dev_err(cdev->dev, "arm templates failed: %d\n", ret);
+ return ret;
+ }
+
+ /* update dram pg for scratch and restricted regions */
+ catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 15:24:50 +0000