1 files changed, 550 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c
new file mode 100644
index 000000000000..cd707d70a0bf
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c
@@ -0,0 +1,550 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <drm/drm_exec.h>
+#include <drm/drm_drv.h>
+
+#include "amdgpu.h"
+#include "amdgpu_umsch_mm.h"
+#include "umsch_mm_v4_0.h"
+
+MODULE_FIRMWARE("amdgpu/umsch_mm_4_0_0.bin");
+
+int amdgpu_umsch_mm_submit_pkt(struct amdgpu_umsch_mm *umsch, void *pkt, int ndws)
+{
+	struct amdgpu_ring *ring = &umsch->ring;
+
+	if (amdgpu_ring_alloc(ring, ndws))
+		return -ENOMEM;
+
+	amdgpu_ring_write_multiple(ring, pkt, ndws);
+	amdgpu_ring_commit(ring);
+
+	return 0;
+}
+
+int amdgpu_umsch_mm_query_fence(struct amdgpu_umsch_mm *umsch)
+{
+	struct amdgpu_ring *ring = &umsch->ring;
+	struct amdgpu_device *adev = ring->adev;
+	int r;
+
+	r = amdgpu_fence_wait_polling(ring, ring->fence_drv.sync_seq, adev->usec_timeout);
+	if (r < 1) {
+		dev_err(adev->dev, "ring umsch timeout, emitted fence %u\n",
+			ring->fence_drv.sync_seq);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static void umsch_mm_ring_set_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_umsch_mm *umsch = (struct amdgpu_umsch_mm *)ring;
+	struct amdgpu_device *adev = ring->adev;
+
+	if (ring->use_doorbell)
+		WDOORBELL32(ring->doorbell_index, ring->wptr << 2);
+	else
+		WREG32(umsch->rb_wptr, ring->wptr << 2);
+}
+
+static u64 umsch_mm_ring_get_rptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_umsch_mm *umsch = (struct amdgpu_umsch_mm *)ring;
+	struct amdgpu_device *adev = ring->adev;
+
+	return RREG32(umsch->rb_rptr);
+}
+
+static u64 umsch_mm_ring_get_wptr(struct amdgpu_ring *ring)
+{
+	struct amdgpu_umsch_mm *umsch = (struct amdgpu_umsch_mm *)ring;
+	struct amdgpu_device *adev = ring->adev;
+
+	return RREG32(umsch->rb_wptr);
+}
+
+static const struct amdgpu_ring_funcs umsch_v4_0_ring_funcs = {
+	.type = AMDGPU_RING_TYPE_UMSCH_MM,
+	.align_mask = 0,
+	.nop = 0,
+	.support_64bit_ptrs = false,
+	.get_rptr = umsch_mm_ring_get_rptr,
+	.get_wptr = umsch_mm_ring_get_wptr,
+	.set_wptr = umsch_mm_ring_set_wptr,
+	.insert_nop = amdgpu_ring_insert_nop,
+};
+
+int amdgpu_umsch_mm_ring_init(struct amdgpu_umsch_mm *umsch)
+{
+	struct amdgpu_device *adev = container_of(umsch, struct amdgpu_device, umsch_mm);
+	struct amdgpu_ring *ring = &umsch->ring;
+
+	ring->vm_hub = AMDGPU_MMHUB0(0);
+	ring->use_doorbell = true;
+	ring->no_scheduler = true;
+	ring->doorbell_index = (AMDGPU_NAVI10_DOORBELL64_VCN0_1 << 1) + 6;
+
+	snprintf(ring->name, sizeof(ring->name), "umsch");
+
+	return amdgpu_ring_init(adev, ring, 1024, NULL, 0, AMDGPU_RING_PRIO_DEFAULT, NULL);
+}
+
+int amdgpu_umsch_mm_init_microcode(struct amdgpu_umsch_mm *umsch)
+{
+	const struct umsch_mm_firmware_header_v1_0 *umsch_mm_hdr;
+	struct amdgpu_device *adev = umsch->ring.adev;
+	const char *fw_name = NULL;
+	int r;
+
+	switch (amdgpu_ip_version(adev, VCN_HWIP, 0)) {
+	case IP_VERSION(4, 0, 5):
+	case IP_VERSION(4, 0, 6):
+		fw_name = "4_0_0";
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	r = amdgpu_ucode_request(adev, &adev->umsch_mm.fw, AMDGPU_UCODE_REQUIRED,
+				 "amdgpu/umsch_mm_%s.bin", fw_name);
+	if (r) {
+		release_firmware(adev->umsch_mm.fw);
+		adev->umsch_mm.fw = NULL;
+		return r;
+	}
+
+	umsch_mm_hdr = (const struct umsch_mm_firmware_header_v1_0 *)adev->umsch_mm.fw->data;
+
+	adev->umsch_mm.ucode_size = le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_size_bytes);
+	adev->umsch_mm.data_size = le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_data_size_bytes);
+
+	adev->umsch_mm.irq_start_addr =
+		le32_to_cpu(umsch_mm_hdr->umsch_mm_irq_start_addr_lo) |
+		((uint64_t)(le32_to_cpu(umsch_mm_hdr->umsch_mm_irq_start_addr_hi)) << 32);
+	adev->umsch_mm.uc_start_addr =
+		le32_to_cpu(umsch_mm_hdr->umsch_mm_uc_start_addr_lo) |
+		((uint64_t)(le32_to_cpu(umsch_mm_hdr->umsch_mm_uc_start_addr_hi)) << 32);
+	adev->umsch_mm.data_start_addr =
+		le32_to_cpu(umsch_mm_hdr->umsch_mm_data_start_addr_lo) |
+		((uint64_t)(le32_to_cpu(umsch_mm_hdr->umsch_mm_data_start_addr_hi)) << 32);
+
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		struct amdgpu_firmware_info *info;
+
+		info = &adev->firmware.ucode[AMDGPU_UCODE_ID_UMSCH_MM_UCODE];
+		info->ucode_id = AMDGPU_UCODE_ID_UMSCH_MM_UCODE;
+		info->fw = adev->umsch_mm.fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_size_bytes), PAGE_SIZE);
+
+		info = &adev->firmware.ucode[AMDGPU_UCODE_ID_UMSCH_MM_DATA];
+		info->ucode_id = AMDGPU_UCODE_ID_UMSCH_MM_DATA;
+		info->fw = adev->umsch_mm.fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_data_size_bytes), PAGE_SIZE);
+	}
+
+	return 0;
+}
+
+int amdgpu_umsch_mm_allocate_ucode_buffer(struct amdgpu_umsch_mm *umsch)
+{
+	const struct umsch_mm_firmware_header_v1_0 *umsch_mm_hdr;
+	struct amdgpu_device *adev = umsch->ring.adev;
+	const __le32 *fw_data;
+	uint32_t fw_size;
+	int r;
+
+	umsch_mm_hdr = (const struct umsch_mm_firmware_header_v1_0 *)
+		       adev->umsch_mm.fw->data;
+
+	fw_data = (const __le32 *)(adev->umsch_mm.fw->data +
+		  le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_offset_bytes));
+	fw_size = le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_size_bytes);
+
+	r = amdgpu_bo_create_reserved(adev, fw_size,
+				      4 * 1024, AMDGPU_GEM_DOMAIN_VRAM,
+				      &adev->umsch_mm.ucode_fw_obj,
+				      &adev->umsch_mm.ucode_fw_gpu_addr,
+				      (void **)&adev->umsch_mm.ucode_fw_ptr);
+	if (r) {
+		dev_err(adev->dev, "(%d) failed to create umsch_mm fw ucode bo\n", r);
+		return r;
+	}
+
+	memcpy(adev->umsch_mm.ucode_fw_ptr, fw_data, fw_size);
+
+	amdgpu_bo_kunmap(adev->umsch_mm.ucode_fw_obj);
+	amdgpu_bo_unreserve(adev->umsch_mm.ucode_fw_obj);
+	return 0;
+}
+
+int amdgpu_umsch_mm_allocate_ucode_data_buffer(struct amdgpu_umsch_mm *umsch)
+{
+	const struct umsch_mm_firmware_header_v1_0 *umsch_mm_hdr;
+	struct amdgpu_device *adev = umsch->ring.adev;
+	const __le32 *fw_data;
+	uint32_t fw_size;
+	int r;
+
+	umsch_mm_hdr = (const struct umsch_mm_firmware_header_v1_0 *)
+		       adev->umsch_mm.fw->data;
+
+	fw_data = (const __le32 *)(adev->umsch_mm.fw->data +
+		  le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_data_offset_bytes));
+	fw_size = le32_to_cpu(umsch_mm_hdr->umsch_mm_ucode_data_size_bytes);
+
+	r = amdgpu_bo_create_reserved(adev, fw_size,
+				      64 * 1024, AMDGPU_GEM_DOMAIN_VRAM,
+				      &adev->umsch_mm.data_fw_obj,
+				      &adev->umsch_mm.data_fw_gpu_addr,
+				      (void **)&adev->umsch_mm.data_fw_ptr);
+	if (r) {
+		dev_err(adev->dev, "(%d) failed to create umsch_mm fw data bo\n", r);
+		return r;
+	}
+
+	memcpy(adev->umsch_mm.data_fw_ptr, fw_data, fw_size);
+
+	amdgpu_bo_kunmap(adev->umsch_mm.data_fw_obj);
+	amdgpu_bo_unreserve(adev->umsch_mm.data_fw_obj);
+	return 0;
+}
+
+int amdgpu_umsch_mm_psp_execute_cmd_buf(struct amdgpu_umsch_mm *umsch)
+{
+	struct amdgpu_device *adev = umsch->ring.adev;
+	struct amdgpu_firmware_info ucode = {
+		.ucode_id = AMDGPU_UCODE_ID_UMSCH_MM_CMD_BUFFER,
+		.mc_addr = adev->umsch_mm.cmd_buf_gpu_addr,
+		.ucode_size = ((uintptr_t)adev->umsch_mm.cmd_buf_curr_ptr -
+			      (uintptr_t)adev->umsch_mm.cmd_buf_ptr),
+	};
+
+	return psp_execute_ip_fw_load(&adev->psp, &ucode);
+}
+
+static void umsch_mm_agdb_index_init(struct amdgpu_device *adev)
+{
+	uint32_t umsch_mm_agdb_start;
+	int i;
+
+	umsch_mm_agdb_start = adev->doorbell_index.max_assignment + 1;
+	umsch_mm_agdb_start = roundup(umsch_mm_agdb_start, 1024);
+	umsch_mm_agdb_start += (AMDGPU_NAVI10_DOORBELL64_VCN0_1 << 1);
+
+	for (i = 0; i < CONTEXT_PRIORITY_NUM_LEVELS; i++)
+		adev->umsch_mm.agdb_index[i] = umsch_mm_agdb_start + i;
+}
+
+static int umsch_mm_init(struct amdgpu_device *adev)
+{
+	int r;
+
+	adev->umsch_mm.vmid_mask_mm_vpe = 0xf00;
+	adev->umsch_mm.engine_mask = (1 << UMSCH_SWIP_ENGINE_TYPE_VPE);
+	adev->umsch_mm.vpe_hqd_mask = 0xfe;
+
+	r = amdgpu_device_wb_get(adev, &adev->umsch_mm.wb_index);
+	if (r) {
+		dev_err(adev->dev, "failed to alloc wb for umsch: %d\n", r);
+		return r;
+	}
+
+	adev->umsch_mm.sch_ctx_gpu_addr = adev->wb.gpu_addr +
+					  (adev->umsch_mm.wb_index * 4);
+
+	r = amdgpu_bo_create_kernel(adev, PAGE_SIZE, PAGE_SIZE,
+				    AMDGPU_GEM_DOMAIN_GTT,
+				    &adev->umsch_mm.cmd_buf_obj,
+				    &adev->umsch_mm.cmd_buf_gpu_addr,
+				    (void **)&adev->umsch_mm.cmd_buf_ptr);
+	if (r) {
+		dev_err(adev->dev, "failed to allocate cmdbuf bo %d\n", r);
+		amdgpu_device_wb_free(adev, adev->umsch_mm.wb_index);
+		return r;
+	}
+
+	r = amdgpu_bo_create_kernel(adev, AMDGPU_UMSCHFW_LOG_SIZE, PAGE_SIZE,
+				    AMDGPU_GEM_DOMAIN_VRAM |
+				    AMDGPU_GEM_DOMAIN_GTT,
+				    &adev->umsch_mm.dbglog_bo,
+				    &adev->umsch_mm.log_gpu_addr,
+				    &adev->umsch_mm.log_cpu_addr);
+	if (r) {
+		dev_err(adev->dev, "(%d) failed to allocate umsch debug bo\n", r);
+		return r;
+	}
+
+	mutex_init(&adev->umsch_mm.mutex_hidden);
+
+	umsch_mm_agdb_index_init(adev);
+
+	return 0;
+}
+
+
+static int umsch_mm_early_init(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+
+	switch (amdgpu_ip_version(adev, VCN_HWIP, 0)) {
+	case IP_VERSION(4, 0, 5):
+	case IP_VERSION(4, 0, 6):
+		umsch_mm_v4_0_set_funcs(&adev->umsch_mm);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	adev->umsch_mm.ring.funcs = &umsch_v4_0_ring_funcs;
+	umsch_mm_set_regs(&adev->umsch_mm);
+
+	return 0;
+}
+
+static int umsch_mm_late_init(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+
+	if (amdgpu_in_reset(adev) || adev->in_s0ix || adev->in_suspend)
+		return 0;
+
+	return 0;
+}
+
+static int umsch_mm_sw_init(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+	int r;
+
+	r = umsch_mm_init(adev);
+	if (r)
+		return r;
+
+	amdgpu_umsch_fwlog_init(&adev->umsch_mm);
+	r = umsch_mm_ring_init(&adev->umsch_mm);
+	if (r)
+		return r;
+
+	r = umsch_mm_init_microcode(&adev->umsch_mm);
+	if (r)
+		return r;
+
+	return 0;
+}
+
+static int umsch_mm_sw_fini(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+
+	release_firmware(adev->umsch_mm.fw);
+	adev->umsch_mm.fw = NULL;
+
+	amdgpu_ring_fini(&adev->umsch_mm.ring);
+
+	mutex_destroy(&adev->umsch_mm.mutex_hidden);
+
+	amdgpu_bo_free_kernel(&adev->umsch_mm.cmd_buf_obj,
+			      &adev->umsch_mm.cmd_buf_gpu_addr,
+			      (void **)&adev->umsch_mm.cmd_buf_ptr);
+
+	amdgpu_bo_free_kernel(&adev->umsch_mm.dbglog_bo,
+				    &adev->umsch_mm.log_gpu_addr,
+				    (void **)&adev->umsch_mm.log_cpu_addr);
+
+	amdgpu_device_wb_free(adev, adev->umsch_mm.wb_index);
+
+	return 0;
+}
+
+static int umsch_mm_hw_init(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+	int r;
+
+	r = umsch_mm_load_microcode(&adev->umsch_mm);
+	if (r)
+		return r;
+
+	umsch_mm_ring_start(&adev->umsch_mm);
+
+	r = umsch_mm_set_hw_resources(&adev->umsch_mm);
+	if (r)
+		return r;
+
+	return 0;
+}
+
+static int umsch_mm_hw_fini(struct amdgpu_ip_block *ip_block)
+{
+	struct amdgpu_device *adev = ip_block->adev;
+
+	umsch_mm_ring_stop(&adev->umsch_mm);
+
+	amdgpu_bo_free_kernel(&adev->umsch_mm.data_fw_obj,
+			      &adev->umsch_mm.data_fw_gpu_addr,
+			      (void **)&adev->umsch_mm.data_fw_ptr);
+
+	amdgpu_bo_free_kernel(&adev->umsch_mm.ucode_fw_obj,
+			      &adev->umsch_mm.ucode_fw_gpu_addr,
+			      (void **)&adev->umsch_mm.ucode_fw_ptr);
+	return 0;
+}
+
+static int umsch_mm_suspend(struct amdgpu_ip_block *ip_block)
+{
+	return umsch_mm_hw_fini(ip_block);
+}
+
+static int umsch_mm_resume(struct amdgpu_ip_block *ip_block)
+{
+	return umsch_mm_hw_init(ip_block);
+}
+
+void amdgpu_umsch_fwlog_init(struct amdgpu_umsch_mm *umsch_mm)
+{
+#if defined(CONFIG_DEBUG_FS)
+	void *fw_log_cpu_addr = umsch_mm->log_cpu_addr;
+	volatile struct amdgpu_umsch_fwlog *log_buf = fw_log_cpu_addr;
+
+	log_buf->header_size = sizeof(struct amdgpu_umsch_fwlog);
+	log_buf->buffer_size = AMDGPU_UMSCHFW_LOG_SIZE;
+	log_buf->rptr = log_buf->header_size;
+	log_buf->wptr = log_buf->header_size;
+	log_buf->wrapped = 0;
+#endif
+}
+
+/*
+ * debugfs for mapping umsch firmware log buffer.
+ */
+#if defined(CONFIG_DEBUG_FS)
+static ssize_t amdgpu_debugfs_umsch_fwlog_read(struct file *f, char __user *buf,
+					     size_t size, loff_t *pos)
+{
+	struct amdgpu_umsch_mm *umsch_mm;
+	void *log_buf;
+	volatile struct amdgpu_umsch_fwlog *plog;
+	unsigned int read_pos, write_pos, available, i, read_bytes = 0;
+	unsigned int read_num[2] = {0};
+
+	umsch_mm = file_inode(f)->i_private;
+	if (!umsch_mm)
+		return -ENODEV;
+
+	if (!umsch_mm->log_cpu_addr)
+		return -EFAULT;
+
+	log_buf = umsch_mm->log_cpu_addr;
+
+	plog = (volatile struct amdgpu_umsch_fwlog *)log_buf;
+	read_pos = plog->rptr;
+	write_pos = plog->wptr;
+
+	if (read_pos > AMDGPU_UMSCHFW_LOG_SIZE || write_pos > AMDGPU_UMSCHFW_LOG_SIZE)
+		return -EFAULT;
+
+	if (!size || (read_pos == write_pos))
+		return 0;
+
+	if (write_pos > read_pos) {
+		available = write_pos - read_pos;
+		read_num[0] = min_t(size_t, size, available);
+	} else {
+		read_num[0] = AMDGPU_UMSCHFW_LOG_SIZE - read_pos;
+		available = read_num[0] + write_pos - plog->header_size;
+		if (size > available)
+			read_num[1] = write_pos - plog->header_size;
+		else if (size > read_num[0])
+			read_num[1] = size - read_num[0];
+		else
+			read_num[0] = size;
+	}
+
+	for (i = 0; i < 2; i++) {
+		if (read_num[i]) {
+			if (read_pos == AMDGPU_UMSCHFW_LOG_SIZE)
+				read_pos = plog->header_size;
+			if (read_num[i] == copy_to_user((buf + read_bytes),
+							(log_buf + read_pos), read_num[i]))
+				return -EFAULT;
+
+			read_bytes += read_num[i];
+			read_pos += read_num[i];
+		}
+	}
+
+	plog->rptr = read_pos;
+	*pos += read_bytes;
+	return read_bytes;
+}
+
+static const struct file_operations amdgpu_debugfs_umschfwlog_fops = {
+	.owner = THIS_MODULE,
+	.read = amdgpu_debugfs_umsch_fwlog_read,
+	.llseek = default_llseek
+};
+#endif
+
+void amdgpu_debugfs_umsch_fwlog_init(struct amdgpu_device *adev,
+			struct amdgpu_umsch_mm *umsch_mm)
+{
+#if defined(CONFIG_DEBUG_FS)
+	struct drm_minor *minor = adev_to_drm(adev)->primary;
+	struct dentry *root = minor->debugfs_root;
+	char name[32];
+
+	sprintf(name, "amdgpu_umsch_fwlog");
+	debugfs_create_file_size(name, S_IFREG | 0444, root, umsch_mm,
+				 &amdgpu_debugfs_umschfwlog_fops,
+				 AMDGPU_UMSCHFW_LOG_SIZE);
+#endif
+}
+
+static const struct amd_ip_funcs umsch_mm_v4_0_ip_funcs = {
+	.name = "umsch_mm_v4_0",
+	.early_init = umsch_mm_early_init,
+	.late_init = umsch_mm_late_init,
+	.sw_init = umsch_mm_sw_init,
+	.sw_fini = umsch_mm_sw_fini,
+	.hw_init = umsch_mm_hw_init,
+	.hw_fini = umsch_mm_hw_fini,
+	.suspend = umsch_mm_suspend,
+	.resume = umsch_mm_resume,
+};
+
+const struct amdgpu_ip_block_version umsch_mm_v4_0_ip_block = {
+	.type = AMD_IP_BLOCK_TYPE_UMSCH_MM,
+	.major = 4,
+	.minor = 0,
+	.rev = 0,
+	.funcs = &umsch_mm_v4_0_ip_funcs,
+};