drm/amdgpu: add VCN2.5 basic supports

i.e. basic VCN IP SW structures

VCN is the video codec block on the GPU.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -145,7 +145,8 @@ amdgpu-y += \
 amdgpu-y += \
 	amdgpu_vcn.o \
 	vcn_v1_0.o \
-	vcn_v2_0.o
+	vcn_v2_0.o \
+	vcn_v2_5.o
 
 # add ATHUB block
 amdgpu-y += \

drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c

@@ -0,0 +1,414 @@
+/*
+ * Copyright 2019 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 <drm/drmP.h>
+#include "amdgpu.h"
+#include "amdgpu_vcn.h"
+#include "soc15.h"
+#include "soc15d.h"
+#include "vcn_v2_0.h"
+
+#include "vcn/vcn_2_5_offset.h"
+#include "vcn/vcn_2_5_sh_mask.h"
+#include "ivsrcid/vcn/irqsrcs_vcn_2_0.h"
+
+#define mmUVD_CONTEXT_ID_INTERNAL_OFFSET			0x27
+#define mmUVD_GPCOM_VCPU_CMD_INTERNAL_OFFSET			0x0f
+#define mmUVD_GPCOM_VCPU_DATA0_INTERNAL_OFFSET			0x10
+#define mmUVD_GPCOM_VCPU_DATA1_INTERNAL_OFFSET			0x11
+#define mmUVD_NO_OP_INTERNAL_OFFSET				0x29
+#define mmUVD_GP_SCRATCH8_INTERNAL_OFFSET			0x66
+#define mmUVD_SCRATCH9_INTERNAL_OFFSET				0xc01d
+
+#define mmUVD_LMI_RBC_IB_VMID_INTERNAL_OFFSET			0x431
+#define mmUVD_LMI_RBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET		0x3b4
+#define mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET 	0x3b5
+#define mmUVD_RBC_IB_SIZE_INTERNAL_OFFSET			0x25c
+
+#define mmUVD_JPEG_PITCH_INTERNAL_OFFSET			0x401f
+
+static void vcn_v2_5_set_dec_ring_funcs(struct amdgpu_device *adev);
+static void vcn_v2_5_set_enc_ring_funcs(struct amdgpu_device *adev);
+static void vcn_v2_5_set_jpeg_ring_funcs(struct amdgpu_device *adev);
+static void vcn_v2_5_set_irq_funcs(struct amdgpu_device *adev);
+static int vcn_v2_5_set_powergating_state(void *handle,
+				enum amd_powergating_state state);
+
+/**
+ * vcn_v2_5_early_init - set function pointers
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Set ring and irq function pointers
+ */
+static int vcn_v2_5_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	adev->vcn.num_enc_rings = 2;
+
+	vcn_v2_5_set_dec_ring_funcs(adev);
+	vcn_v2_5_set_enc_ring_funcs(adev);
+	vcn_v2_5_set_jpeg_ring_funcs(adev);
+	vcn_v2_5_set_irq_funcs(adev);
+
+	return 0;
+}
+
+/**
+ * vcn_v2_5_sw_init - sw init for VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Load firmware and sw initialization
+ */
+static int vcn_v2_5_sw_init(void *handle)
+{
+	struct amdgpu_ring *ring;
+	int i, r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	/* VCN DEC TRAP */
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
+			VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT, &adev->vcn.irq);
+	if (r)
+		return r;
+
+	/* VCN ENC TRAP */
+	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
+		r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
+			i + VCN_2_0__SRCID__UVD_ENC_GENERAL_PURPOSE, &adev->vcn.irq);
+		if (r)
+			return r;
+	}
+
+	/* VCN JPEG TRAP */
+	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VCN,
+			VCN_2_0__SRCID__JPEG_DECODE, &adev->vcn.irq);
+	if (r)
+		return r;
+
+	r = amdgpu_vcn_sw_init(adev);
+	if (r)
+		return r;
+
+	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
+		const struct common_firmware_header *hdr;
+		hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].ucode_id = AMDGPU_UCODE_ID_VCN;
+		adev->firmware.ucode[AMDGPU_UCODE_ID_VCN].fw = adev->vcn.fw;
+		adev->firmware.fw_size +=
+			ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
+		DRM_INFO("PSP loading VCN firmware\n");
+	}
+
+	r = amdgpu_vcn_resume(adev);
+	if (r)
+		return r;
+
+	ring = &adev->vcn.ring_dec;
+	sprintf(ring->name, "vcn_dec");
+	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
+	if (r)
+		return r;
+
+	adev->vcn.internal.context_id = mmUVD_CONTEXT_ID_INTERNAL_OFFSET;
+	adev->vcn.internal.ib_vmid = mmUVD_LMI_RBC_IB_VMID_INTERNAL_OFFSET;
+	adev->vcn.internal.ib_bar_low = mmUVD_LMI_RBC_IB_64BIT_BAR_LOW_INTERNAL_OFFSET;
+	adev->vcn.internal.ib_bar_high = mmUVD_LMI_RBC_IB_64BIT_BAR_HIGH_INTERNAL_OFFSET;
+	adev->vcn.internal.ib_size = mmUVD_RBC_IB_SIZE_INTERNAL_OFFSET;
+	adev->vcn.internal.gp_scratch8 = mmUVD_GP_SCRATCH8_INTERNAL_OFFSET;
+
+	adev->vcn.internal.scratch9 = mmUVD_SCRATCH9_INTERNAL_OFFSET;
+	adev->vcn.external.scratch9 = SOC15_REG_OFFSET(UVD, 0, mmUVD_SCRATCH9);
+	adev->vcn.internal.data0 = mmUVD_GPCOM_VCPU_DATA0_INTERNAL_OFFSET;
+	adev->vcn.external.data0 = SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0);
+	adev->vcn.internal.data1 = mmUVD_GPCOM_VCPU_DATA1_INTERNAL_OFFSET;
+	adev->vcn.external.data1 = SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1);
+	adev->vcn.internal.cmd = mmUVD_GPCOM_VCPU_CMD_INTERNAL_OFFSET;
+	adev->vcn.external.cmd = SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD);
+	adev->vcn.internal.nop = mmUVD_NO_OP_INTERNAL_OFFSET;
+	adev->vcn.external.nop = SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP);
+
+	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
+		ring = &adev->vcn.ring_enc[i];
+		sprintf(ring->name, "vcn_enc%d", i);
+		r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
+		if (r)
+			return r;
+	}
+
+	ring = &adev->vcn.ring_jpeg;
+	sprintf(ring->name, "vcn_jpeg");
+	r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.irq, 0);
+	if (r)
+		return r;
+
+	adev->vcn.internal.jpeg_pitch = mmUVD_JPEG_PITCH_INTERNAL_OFFSET;
+	adev->vcn.external.jpeg_pitch = SOC15_REG_OFFSET(UVD, 0, mmUVD_JPEG_PITCH);
+
+	return 0;
+}
+
+/**
+ * vcn_v2_5_sw_fini - sw fini for VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * VCN suspend and free up sw allocation
+ */
+static int vcn_v2_5_sw_fini(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = amdgpu_vcn_suspend(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_vcn_sw_fini(adev);
+
+	return r;
+}
+
+/**
+ * vcn_v2_5_hw_init - start and test VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+static int vcn_v2_5_hw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_ring *ring = &adev->vcn.ring_dec;
+	int i, r;
+
+	r = amdgpu_ring_test_ring(ring);
+	if (r) {
+		ring->sched.ready = false;
+		goto done;
+	}
+
+	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
+		ring = &adev->vcn.ring_enc[i];
+		ring->sched.ready = false;
+		continue;
+		r = amdgpu_ring_test_ring(ring);
+		if (r) {
+			ring->sched.ready = false;
+			goto done;
+		}
+	}
+
+	ring = &adev->vcn.ring_jpeg;
+	r = amdgpu_ring_test_ring(ring);
+	if (r) {
+		ring->sched.ready = false;
+		goto done;
+	}
+
+done:
+	if (!r)
+		DRM_INFO("VCN decode and encode initialized successfully.\n");
+
+	return r;
+}
+
+/**
+ * vcn_v2_5_hw_fini - stop the hardware block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Stop the VCN block, mark ring as not ready any more
+ */
+static int vcn_v2_5_hw_fini(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_ring *ring = &adev->vcn.ring_dec;
+	int i;
+
+	if (RREG32_SOC15(VCN, 0, mmUVD_STATUS))
+		vcn_v2_5_set_powergating_state(adev, AMD_PG_STATE_GATE);
+
+	ring->sched.ready = false;
+
+	for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
+		ring = &adev->vcn.ring_enc[i];
+		ring->sched.ready = false;
+	}
+
+	ring = &adev->vcn.ring_jpeg;
+	ring->sched.ready = false;
+
+	return 0;
+}
+
+/**
+ * vcn_v2_5_suspend - suspend VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * HW fini and suspend VCN block
+ */
+static int vcn_v2_5_suspend(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = vcn_v2_5_hw_fini(adev);
+	if (r)
+		return r;
+
+	r = amdgpu_vcn_suspend(adev);
+
+	return r;
+}
+
+/**
+ * vcn_v2_5_resume - resume VCN block
+ *
+ * @handle: amdgpu_device pointer
+ *
+ * Resume firmware and hw init VCN block
+ */
+static int vcn_v2_5_resume(void *handle)
+{
+	int r;
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	r = amdgpu_vcn_resume(adev);
+	if (r)
+		return r;
+
+	r = vcn_v2_5_hw_init(adev);
+
+	return r;
+}
+
+static bool vcn_v2_5_is_idle(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+	return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == UVD_STATUS__IDLE);
+}
+
+static int vcn_v2_5_wait_for_idle(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int ret = 0;
+
+	SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, UVD_STATUS__IDLE,
+		UVD_STATUS__IDLE, ret);
+
+	return ret;
+}
+
+static int vcn_v2_5_set_clockgating_state(void *handle,
+					  enum amd_clockgating_state state)
+{
+	return 0;
+}
+
+static int vcn_v2_5_set_powergating_state(void *handle,
+					  enum amd_powergating_state state)
+{
+	return 0;
+}
+
+static int vcn_v2_5_set_interrupt_state(struct amdgpu_device *adev,
+					struct amdgpu_irq_src *source,
+					unsigned type,
+					enum amdgpu_interrupt_state state)
+{
+	return 0;
+}
+
+static int vcn_v2_5_process_interrupt(struct amdgpu_device *adev,
+				      struct amdgpu_irq_src *source,
+				      struct amdgpu_iv_entry *entry)
+{
+	DRM_DEBUG("IH: VCN TRAP\n");
+
+	switch (entry->src_id) {
+	case VCN_2_0__SRCID__UVD_SYSTEM_MESSAGE_INTERRUPT:
+		amdgpu_fence_process(&adev->vcn.ring_dec);
+		break;
+	case VCN_2_0__SRCID__UVD_ENC_GENERAL_PURPOSE:
+		amdgpu_fence_process(&adev->vcn.ring_enc[0]);
+		break;
+	case VCN_2_0__SRCID__UVD_ENC_LOW_LATENCY:
+		amdgpu_fence_process(&adev->vcn.ring_enc[1]);
+		break;
+	case VCN_2_0__SRCID__JPEG_DECODE:
+		amdgpu_fence_process(&adev->vcn.ring_jpeg);
+		break;
+	default:
+		DRM_ERROR("Unhandled interrupt: %d %d\n",
+			  entry->src_id, entry->src_data[0]);
+		break;
+	}
+
+	return 0;
+}
+
+static const struct amdgpu_irq_src_funcs vcn_v2_5_irq_funcs = {
+	.set = vcn_v2_5_set_interrupt_state,
+	.process = vcn_v2_5_process_interrupt,
+};
+
+static void vcn_v2_5_set_irq_funcs(struct amdgpu_device *adev)
+{
+	adev->vcn.irq.num_types = adev->vcn.num_enc_rings + 2;
+	adev->vcn.irq.funcs = &vcn_v2_5_irq_funcs;
+}
+
+static const struct amd_ip_funcs vcn_v2_5_ip_funcs = {
+	.name = "vcn_v2_5",
+	.early_init = vcn_v2_5_early_init,
+	.late_init = NULL,
+	.sw_init = vcn_v2_5_sw_init,
+	.sw_fini = vcn_v2_5_sw_fini,
+	.hw_init = vcn_v2_5_hw_init,
+	.hw_fini = vcn_v2_5_hw_fini,
+	.suspend = vcn_v2_5_suspend,
+	.resume = vcn_v2_5_resume,
+	.is_idle = vcn_v2_5_is_idle,
+	.wait_for_idle = vcn_v2_5_wait_for_idle,
+	.check_soft_reset = NULL,
+	.pre_soft_reset = NULL,
+	.soft_reset = NULL,
+	.post_soft_reset = NULL,
+	.set_clockgating_state = vcn_v2_5_set_clockgating_state,
+	.set_powergating_state = vcn_v2_5_set_powergating_state,
+};
+
+const struct amdgpu_ip_block_version vcn_v2_5_ip_block =
+{
+		.type = AMD_IP_BLOCK_TYPE_VCN,
+		.major = 2,
+		.minor = 5,
+		.rev = 0,
+		.funcs = &vcn_v2_5_ip_funcs,
+};