8 files changed, 1254 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/Makefile b/drivers/gpu/drm/amd/display/dmub/src/Makefile
new file mode 100644
index 000000000000..e08dfeea24b0
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/Makefile
@@ -0,0 +1,27 @@
+#
+# 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.
+#
+
+DMUB = dmub_srv.o dmub_reg.o dmub_dcn20.o dmub_dcn21.o
+
+AMD_DAL_DMUB = $(addprefix $(AMDDALPATH)/dmub/src/,$(DMUB))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_DMUB)
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c
new file mode 100644
index 000000000000..cd51c6138894
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c
@@ -0,0 +1,202 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../inc/dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn20.h"
+
+#include "dcn/dcn_2_0_0_offset.h"
+#include "dcn/dcn_2_0_0_sh_mask.h"
+#include "soc15_hw_ip.h"
+#include "vega10_ip_offset.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn20_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{ DMUB_COMMON_REGS() },
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+
+static inline void dmub_dcn20_translate_addr(const union dmub_addr *addr_in,
+					     uint64_t fb_base,
+					     uint64_t fb_offset,
+					     union dmub_addr *addr_out)
+{
+	addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
+}
+
+void dmub_dcn20_reset(struct dmub_srv *dmub)
+{
+	REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0);
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1);
+}
+
+void dmub_dcn20_reset_release(struct dmub_srv *dmub)
+{
+	REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 0);
+	REG_WRITE(DMCUB_SCRATCH15, dmub->psp_version & 0x001100FF);
+	REG_UPDATE_2(DMCUB_CNTL, DMCUB_ENABLE, 1, DMCUB_TRACEPORT_EN, 1);
+	REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 0);
+}
+
+void dmub_dcn20_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1)
+{
+	union dmub_addr offset;
+	uint64_t fb_base = dmub->fb_base, fb_offset = dmub->fb_offset;
+
+	REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
+	REG_UPDATE_2(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE, 0x3,
+		     DMCUB_MEM_WRITE_SPACE, 0x3);
+
+	dmub_dcn20_translate_addr(&cw0->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
+	REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
+		  DMCUB_REGION3_CW0_ENABLE, 1);
+
+	dmub_dcn20_translate_addr(&cw1->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
+	REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
+		  DMCUB_REGION3_CW1_ENABLE, 1);
+
+	REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
+		     0x20);
+}
+
+void dmub_dcn20_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6)
+{
+	union dmub_addr offset;
+	uint64_t fb_base = dmub->fb_base, fb_offset = dmub->fb_offset;
+
+	dmub_dcn20_translate_addr(&cw2->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base);
+	REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top,
+		  DMCUB_REGION3_CW2_ENABLE, 1);
+
+	dmub_dcn20_translate_addr(&cw3->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
+	REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
+		  DMCUB_REGION3_CW3_ENABLE, 1);
+
+	/* TODO: Move this to CW4. */
+	dmub_dcn20_translate_addr(&cw4->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part);
+	REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0, DMCUB_REGION4_TOP_ADDRESS,
+		  cw4->region.top - cw4->region.base - 1, DMCUB_REGION4_ENABLE,
+		  1);
+
+	dmub_dcn20_translate_addr(&cw5->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
+	REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
+		  DMCUB_REGION3_CW5_ENABLE, 1);
+
+	dmub_dcn20_translate_addr(&cw6->offset, fb_base, fb_offset, &offset);
+
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
+	REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
+	REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
+	REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
+		  DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
+		  DMCUB_REGION3_CW6_ENABLE, 1);
+}
+
+void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1)
+{
+	/* TODO: Use CW4 instead of region 4. */
+
+	REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000);
+	REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base);
+	REG_WRITE(DMCUB_INBOX1_RPTR, 0);
+	REG_WRITE(DMCUB_INBOX1_WPTR, 0);
+}
+
+uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_INBOX1_RPTR);
+}
+
+void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset)
+{
+	REG_WRITE(DMCUB_INBOX1_WPTR, wptr_offset);
+}
+
+bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_REGION3_CW2_BASE_ADDRESS) != 0;
+}
+
+bool dmub_dcn20_is_supported(struct dmub_srv *dmub)
+{
+	uint32_t supported = 0;
+
+	REG_GET(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE, &supported);
+
+	return supported;
+}
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h
new file mode 100644
index 000000000000..53bfd4da69ad
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h
@@ -0,0 +1,182 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN20_H_
+#define _DMUB_DCN20_H_
+
+#include "../inc/dmub_types.h"
+
+struct dmub_srv;
+
+/* DCN20 register definitions. */
+
+#define DMUB_COMMON_REGS() \
+	DMUB_SR(DMCUB_CNTL) \
+	DMUB_SR(DMCUB_MEM_CNTL) \
+	DMUB_SR(DMCUB_SEC_CNTL) \
+	DMUB_SR(DMCUB_INBOX1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_INBOX1_SIZE) \
+	DMUB_SR(DMCUB_INBOX1_RPTR) \
+	DMUB_SR(DMCUB_INBOX1_WPTR) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET) \
+	DMUB_SR(DMCUB_REGION3_CW0_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW1_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW2_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW3_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW5_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW6_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW7_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION3_CW0_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_BASE_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_REGION4_OFFSET) \
+	DMUB_SR(DMCUB_REGION4_OFFSET_HIGH) \
+	DMUB_SR(DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SR(DMCUB_SCRATCH0) \
+	DMUB_SR(DMCUB_SCRATCH1) \
+	DMUB_SR(DMCUB_SCRATCH2) \
+	DMUB_SR(DMCUB_SCRATCH3) \
+	DMUB_SR(DMCUB_SCRATCH4) \
+	DMUB_SR(DMCUB_SCRATCH5) \
+	DMUB_SR(DMCUB_SCRATCH6) \
+	DMUB_SR(DMCUB_SCRATCH7) \
+	DMUB_SR(DMCUB_SCRATCH8) \
+	DMUB_SR(DMCUB_SCRATCH9) \
+	DMUB_SR(DMCUB_SCRATCH10) \
+	DMUB_SR(DMCUB_SCRATCH11) \
+	DMUB_SR(DMCUB_SCRATCH12) \
+	DMUB_SR(DMCUB_SCRATCH13) \
+	DMUB_SR(DMCUB_SCRATCH14) \
+	DMUB_SR(DMCUB_SCRATCH15) \
+	DMUB_SR(CC_DC_PIPE_DIS) \
+	DMUB_SR(MMHUBBUB_SOFT_RESET)
+
+#define DMUB_COMMON_FIELDS() \
+	DMUB_SF(DMCUB_CNTL, DMCUB_ENABLE) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_SOFT_RESET) \
+	DMUB_SF(DMCUB_CNTL, DMCUB_TRACEPORT_EN) \
+	DMUB_SF(DMCUB_MEM_CNTL, DMCUB_MEM_READ_SPACE) \
+	DMUB_SF(DMCUB_MEM_CNTL, DMCUB_MEM_WRITE_SPACE) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_SEC_RESET) \
+	DMUB_SF(DMCUB_SEC_CNTL, DMCUB_MEM_UNIT_ID) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW0_TOP_ADDRESS, DMCUB_REGION3_CW0_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW1_TOP_ADDRESS, DMCUB_REGION3_CW1_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW2_TOP_ADDRESS, DMCUB_REGION3_CW2_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW3_TOP_ADDRESS, DMCUB_REGION3_CW3_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW4_TOP_ADDRESS, DMCUB_REGION3_CW4_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW5_TOP_ADDRESS, DMCUB_REGION3_CW5_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW6_TOP_ADDRESS, DMCUB_REGION3_CW6_ENABLE) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION3_CW7_TOP_ADDRESS, DMCUB_REGION3_CW7_ENABLE) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_TOP_ADDRESS) \
+	DMUB_SF(DMCUB_REGION4_TOP_ADDRESS, DMCUB_REGION4_ENABLE) \
+	DMUB_SF(CC_DC_PIPE_DIS, DC_DMCUB_ENABLE) \
+	DMUB_SF(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET)
+
+struct dmub_srv_common_reg_offset {
+#define DMUB_SR(reg) uint32_t reg;
+	DMUB_COMMON_REGS()
+#undef DMUB_SR
+};
+
+struct dmub_srv_common_reg_shift {
+#define DMUB_SF(reg, field) uint8_t reg##__##field;
+	DMUB_COMMON_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_common_reg_mask {
+#define DMUB_SF(reg, field) uint32_t reg##__##field;
+	DMUB_COMMON_FIELDS()
+#undef DMUB_SF
+};
+
+struct dmub_srv_common_regs {
+	const struct dmub_srv_common_reg_offset offset;
+	const struct dmub_srv_common_reg_mask mask;
+	const struct dmub_srv_common_reg_shift shift;
+};
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn20_regs;
+
+/* Hardware functions. */
+
+void dmub_dcn20_init(struct dmub_srv *dmub);
+
+void dmub_dcn20_reset(struct dmub_srv *dmub);
+
+void dmub_dcn20_reset_release(struct dmub_srv *dmub);
+
+void dmub_dcn20_backdoor_load(struct dmub_srv *dmub,
+			      const struct dmub_window *cw0,
+			      const struct dmub_window *cw1);
+
+void dmub_dcn20_setup_windows(struct dmub_srv *dmub,
+			      const struct dmub_window *cw2,
+			      const struct dmub_window *cw3,
+			      const struct dmub_window *cw4,
+			      const struct dmub_window *cw5,
+			      const struct dmub_window *cw6);
+
+void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub,
+			      const struct dmub_region *inbox1);
+
+uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub);
+
+void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset);
+
+bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub);
+
+bool dmub_dcn20_is_supported(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN20_H_ */
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.c
new file mode 100644
index 000000000000..5bed9fcd6b5c
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.c
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../inc/dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn21.h"
+
+#include "dcn/dcn_2_1_0_offset.h"
+#include "dcn/dcn_2_1_0_sh_mask.h"
+#include "renoir_ip_offset.h"
+
+#define BASE_INNER(seg) DMU_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn21_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{ DMUB_COMMON_REGS() },
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+
+bool dmub_dcn21_is_auto_load_done(struct dmub_srv *dmub)
+{
+	return (REG_READ(DMCUB_SCRATCH0) == 3);
+}
+
+bool dmub_dcn21_is_phy_init(struct dmub_srv *dmub)
+{
+	return REG_READ(DMCUB_SCRATCH10) == 0;
+}
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.h
new file mode 100644
index 000000000000..2bbea237137b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn21.h
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_DCN21_H_
+#define _DMUB_DCN21_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn21_regs;
+
+/* Hardware functions. */
+
+bool dmub_dcn21_is_auto_load_done(struct dmub_srv *dmub);
+
+bool dmub_dcn21_is_phy_init(struct dmub_srv *dmub);
+
+#endif /* _DMUB_DCN21_H_ */
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c
new file mode 100644
index 000000000000..4094eca212f0
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c
@@ -0,0 +1,109 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dmub_reg.h"
+#include "../inc/dmub_srv.h"
+
+struct dmub_reg_value_masks {
+	uint32_t value;
+	uint32_t mask;
+};
+
+static inline void
+set_reg_field_value_masks(struct dmub_reg_value_masks *field_value_mask,
+			  uint32_t value, uint32_t mask, uint8_t shift)
+{
+	field_value_mask->value =
+		(field_value_mask->value & ~mask) | (mask & (value << shift));
+	field_value_mask->mask = field_value_mask->mask | mask;
+}
+
+static void set_reg_field_values(struct dmub_reg_value_masks *field_value_mask,
+				 uint32_t addr, int n, uint8_t shift1,
+				 uint32_t mask1, uint32_t field_value1,
+				 va_list ap)
+{
+	uint32_t shift, mask, field_value;
+	int i = 1;
+
+	/* gather all bits value/mask getting updated in this register */
+	set_reg_field_value_masks(field_value_mask, field_value1, mask1,
+				  shift1);
+
+	while (i < n) {
+		shift = va_arg(ap, uint32_t);
+		mask = va_arg(ap, uint32_t);
+		field_value = va_arg(ap, uint32_t);
+
+		set_reg_field_value_masks(field_value_mask, field_value, mask,
+					  shift);
+		i++;
+	}
+}
+
+static inline uint32_t get_reg_field_value_ex(uint32_t reg_value, uint32_t mask,
+					      uint8_t shift)
+{
+	return (mask & reg_value) >> shift;
+}
+
+void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1,
+		     uint32_t mask1, uint32_t field_value1, ...)
+{
+	struct dmub_reg_value_masks field_value_mask = { 0 };
+	uint32_t reg_val;
+	va_list ap;
+
+	va_start(ap, field_value1);
+	set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+			     field_value1, ap);
+	va_end(ap);
+
+	reg_val = srv->funcs.reg_read(srv->user_ctx, addr);
+	reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
+	srv->funcs.reg_write(srv->user_ctx, addr, reg_val);
+}
+
+void dmub_reg_set(struct dmub_srv *srv, uint32_t addr, uint32_t reg_val, int n,
+		  uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...)
+{
+	struct dmub_reg_value_masks field_value_mask = { 0 };
+	va_list ap;
+
+	va_start(ap, field_value1);
+	set_reg_field_values(&field_value_mask, addr, n, shift1, mask1,
+			     field_value1, ap);
+	va_end(ap);
+
+	reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value;
+	srv->funcs.reg_write(srv->user_ctx, addr, reg_val);
+}
+
+void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift,
+		  uint32_t mask, uint32_t *field_value)
+{
+	uint32_t reg_val = srv->funcs.reg_read(srv->user_ctx, addr);
+	*field_value = get_reg_field_value_ex(reg_val, mask, shift);
+}
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h
new file mode 100644
index 000000000000..c1f4030929a4
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h
@@ -0,0 +1,124 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DMUB_REG_H_
+#define _DMUB_REG_H_
+
+#include "../inc/dmub_types.h"
+
+struct dmub_srv;
+
+/* Register offset and field lookup. */
+
+#define BASE(seg) BASE_INNER(seg)
+
+#define REG_OFFSET(reg_name) (BASE(mm##reg_name##_BASE_IDX) + mm##reg_name)
+
+#define FD_SHIFT(reg_name, field) reg_name##__##field##__SHIFT
+
+#define FD_MASK(reg_name, field) reg_name##__##field##_MASK
+
+#define REG(reg) (REGS)->offset.reg
+
+#define FD(reg_field) (REGS)->shift.reg_field, (REGS)->mask.reg_field
+
+#define FN(reg_name, field) FD(reg_name##__##field)
+
+/* Register reads and writes. */
+
+#define REG_READ(reg) ((CTX)->funcs.reg_read((CTX)->user_ctx, REG(reg)))
+
+#define REG_WRITE(reg, val) \
+	((CTX)->funcs.reg_write((CTX)->user_ctx, REG(reg), (val)))
+
+/* Register field setting. */
+
+#define REG_SET_N(reg_name, n, initial_val, ...) \
+	dmub_reg_set(CTX, REG(reg_name), initial_val, n, __VA_ARGS__)
+
+#define REG_SET(reg_name, initial_val, field, val) \
+		REG_SET_N(reg_name, 1, initial_val, \
+				FN(reg_name, field), val)
+
+#define REG_SET_2(reg, init_value, f1, v1, f2, v2) \
+		REG_SET_N(reg, 2, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2)
+
+#define REG_SET_3(reg, init_value, f1, v1, f2, v2, f3, v3) \
+		REG_SET_N(reg, 3, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3)
+
+#define REG_SET_4(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4) \
+		REG_SET_N(reg, 4, init_value, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4)
+
+/* Register field updating. */
+
+#define REG_UPDATE_N(reg_name, n, ...)\
+		dmub_reg_update(CTX, REG(reg_name), n, __VA_ARGS__)
+
+#define REG_UPDATE(reg_name, field, val)	\
+		REG_UPDATE_N(reg_name, 1, \
+				FN(reg_name, field), val)
+
+#define REG_UPDATE_2(reg, f1, v1, f2, v2)	\
+		REG_UPDATE_N(reg, 2,\
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2)
+
+#define REG_UPDATE_3(reg, f1, v1, f2, v2, f3, v3) \
+		REG_UPDATE_N(reg, 3, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3)
+
+#define REG_UPDATE_4(reg, f1, v1, f2, v2, f3, v3, f4, v4) \
+		REG_UPDATE_N(reg, 4, \
+				FN(reg, f1), v1, \
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4)
+
+/* Register field getting. */
+
+#define REG_GET(reg_name, field, val) \
+	dmub_reg_get(CTX, REG(reg_name), FN(reg_name, field), val)
+
+void dmub_reg_set(struct dmub_srv *srv, uint32_t addr, uint32_t reg_val, int n,
+		  uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
+
+void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1,
+		     uint32_t mask1, uint32_t field_value1, ...);
+
+void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift,
+		  uint32_t mask, uint32_t *field_value);
+
+#endif /* _DMUB_REG_H_ */
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
new file mode 100644
index 000000000000..dee676335d73
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
@@ -0,0 +1,505 @@
+/*
+ * 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "../inc/dmub_srv.h"
+#include "dmub_dcn20.h"
+#include "dmub_dcn21.h"
+#include "dmub_fw_meta.h"
+#include "os_types.h"
+/*
+ * Note: the DMUB service is standalone. No additional headers should be
+ * added below or above this line unless they reside within the DMUB
+ * folder.
+ */
+
+/* Alignment for framebuffer memory. */
+#define DMUB_FB_ALIGNMENT (1024 * 1024)
+
+/* Stack size. */
+#define DMUB_STACK_SIZE (128 * 1024)
+
+/* Context size. */
+#define DMUB_CONTEXT_SIZE (512 * 1024)
+
+/* Mailbox size */
+#define DMUB_MAILBOX_SIZE (DMUB_RB_SIZE)
+
+/* Default state size if meta is absent. */
+#define DMUB_FW_STATE_SIZE (1024)
+
+/* Default tracebuffer size if meta is absent. */
+#define DMUB_TRACE_BUFFER_SIZE (1024)
+
+/* Number of windows in use. */
+#define DMUB_NUM_WINDOWS (DMUB_WINDOW_6_FW_STATE + 1)
+/* Base addresses. */
+
+#define DMUB_CW0_BASE (0x60000000)
+#define DMUB_CW1_BASE (0x61000000)
+#define DMUB_CW3_BASE (0x63000000)
+#define DMUB_CW5_BASE (0x65000000)
+#define DMUB_CW6_BASE (0x66000000)
+
+static inline uint32_t dmub_align(uint32_t val, uint32_t factor)
+{
+	return (val + factor - 1) / factor * factor;
+}
+
+static void dmub_flush_buffer_mem(const struct dmub_fb *fb)
+{
+	const uint8_t *base = (const uint8_t *)fb->cpu_addr;
+	uint8_t buf[64];
+	uint32_t pos, end;
+
+	/**
+	 * Read 64-byte chunks since we don't want to store a
+	 * large temporary buffer for this purpose.
+	 */
+	end = fb->size / sizeof(buf) * sizeof(buf);
+
+	for (pos = 0; pos < end; pos += sizeof(buf))
+		dmub_memcpy(buf, base + pos, sizeof(buf));
+
+	/* Read anything leftover into the buffer. */
+	if (end < fb->size)
+		dmub_memcpy(buf, base + pos, fb->size - end);
+}
+
+static const struct dmub_fw_meta_info *
+dmub_get_fw_meta_info(const uint8_t *fw_bss_data, uint32_t fw_bss_data_size)
+{
+	const union dmub_fw_meta *meta;
+
+	if (fw_bss_data == NULL)
+		return NULL;
+
+	if (fw_bss_data_size < sizeof(union dmub_fw_meta) + DMUB_FW_META_OFFSET)
+		return NULL;
+
+	meta = (const union dmub_fw_meta *)(fw_bss_data + fw_bss_data_size -
+					    DMUB_FW_META_OFFSET -
+					    sizeof(union dmub_fw_meta));
+
+	if (meta->info.magic_value != DMUB_FW_META_MAGIC)
+		return NULL;
+
+	return &meta->info;
+}
+
+static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
+{
+	struct dmub_srv_hw_funcs *funcs = &dmub->hw_funcs;
+
+	switch (asic) {
+	case DMUB_ASIC_DCN20:
+	case DMUB_ASIC_DCN21:
+		dmub->regs = &dmub_srv_dcn20_regs;
+
+		funcs->reset = dmub_dcn20_reset;
+		funcs->reset_release = dmub_dcn20_reset_release;
+		funcs->backdoor_load = dmub_dcn20_backdoor_load;
+		funcs->setup_windows = dmub_dcn20_setup_windows;
+		funcs->setup_mailbox = dmub_dcn20_setup_mailbox;
+		funcs->get_inbox1_rptr = dmub_dcn20_get_inbox1_rptr;
+		funcs->set_inbox1_wptr = dmub_dcn20_set_inbox1_wptr;
+		funcs->is_supported = dmub_dcn20_is_supported;
+		funcs->is_hw_init = dmub_dcn20_is_hw_init;
+
+		if (asic == DMUB_ASIC_DCN21) {
+			dmub->regs = &dmub_srv_dcn21_regs;
+
+			funcs->is_auto_load_done = dmub_dcn21_is_auto_load_done;
+			funcs->is_phy_init = dmub_dcn21_is_phy_init;
+		}
+		break;
+
+	default:
+		return false;
+	}
+
+	return true;
+}
+
+enum dmub_status dmub_srv_create(struct dmub_srv *dmub,
+				 const struct dmub_srv_create_params *params)
+{
+	enum dmub_status status = DMUB_STATUS_OK;
+
+	dmub_memset(dmub, 0, sizeof(*dmub));
+
+	dmub->funcs = params->funcs;
+	dmub->user_ctx = params->user_ctx;
+	dmub->asic = params->asic;
+	dmub->is_virtual = params->is_virtual;
+
+	/* Setup asic dependent hardware funcs. */
+	if (!dmub_srv_hw_setup(dmub, params->asic)) {
+		status = DMUB_STATUS_INVALID;
+		goto cleanup;
+	}
+
+	/* Override (some) hardware funcs based on user params. */
+	if (params->hw_funcs) {
+		if (params->hw_funcs->get_inbox1_rptr)
+			dmub->hw_funcs.get_inbox1_rptr =
+				params->hw_funcs->get_inbox1_rptr;
+
+		if (params->hw_funcs->set_inbox1_wptr)
+			dmub->hw_funcs.set_inbox1_wptr =
+				params->hw_funcs->set_inbox1_wptr;
+
+		if (params->hw_funcs->is_supported)
+			dmub->hw_funcs.is_supported =
+				params->hw_funcs->is_supported;
+	}
+
+	/* Sanity checks for required hw func pointers. */
+	if (!dmub->hw_funcs.get_inbox1_rptr ||
+	    !dmub->hw_funcs.set_inbox1_wptr) {
+		status = DMUB_STATUS_INVALID;
+		goto cleanup;
+	}
+
+cleanup:
+	if (status == DMUB_STATUS_OK)
+		dmub->sw_init = true;
+	else
+		dmub_srv_destroy(dmub);
+
+	return status;
+}
+
+void dmub_srv_destroy(struct dmub_srv *dmub)
+{
+	dmub_memset(dmub, 0, sizeof(*dmub));
+}
+
+enum dmub_status
+dmub_srv_calc_region_info(struct dmub_srv *dmub,
+			  const struct dmub_srv_region_params *params,
+			  struct dmub_srv_region_info *out)
+{
+	struct dmub_region *inst = &out->regions[DMUB_WINDOW_0_INST_CONST];
+	struct dmub_region *stack = &out->regions[DMUB_WINDOW_1_STACK];
+	struct dmub_region *data = &out->regions[DMUB_WINDOW_2_BSS_DATA];
+	struct dmub_region *bios = &out->regions[DMUB_WINDOW_3_VBIOS];
+	struct dmub_region *mail = &out->regions[DMUB_WINDOW_4_MAILBOX];
+	struct dmub_region *trace_buff = &out->regions[DMUB_WINDOW_5_TRACEBUFF];
+	struct dmub_region *fw_state = &out->regions[DMUB_WINDOW_6_FW_STATE];
+	const struct dmub_fw_meta_info *fw_info;
+	uint32_t fw_state_size = DMUB_FW_STATE_SIZE;
+	uint32_t trace_buffer_size = DMUB_TRACE_BUFFER_SIZE;
+
+	if (!dmub->sw_init)
+		return DMUB_STATUS_INVALID;
+
+	memset(out, 0, sizeof(*out));
+
+	out->num_regions = DMUB_NUM_WINDOWS;
+
+	inst->base = 0x0;
+	inst->top = inst->base + params->inst_const_size;
+
+	data->base = dmub_align(inst->top, 256);
+	data->top = data->base + params->bss_data_size;
+
+	/*
+	 * All cache windows below should be aligned to the size
+	 * of the DMCUB cache line, 64 bytes.
+	 */
+
+	stack->base = dmub_align(data->top, 256);
+	stack->top = stack->base + DMUB_STACK_SIZE + DMUB_CONTEXT_SIZE;
+
+	bios->base = dmub_align(stack->top, 256);
+	bios->top = bios->base + params->vbios_size;
+
+	mail->base = dmub_align(bios->top, 256);
+	mail->top = mail->base + DMUB_MAILBOX_SIZE;
+
+	fw_info = dmub_get_fw_meta_info(params->fw_bss_data,
+					params->bss_data_size);
+
+	if (fw_info) {
+		fw_state_size = fw_info->fw_region_size;
+		trace_buffer_size = fw_info->trace_buffer_size;
+	}
+
+	trace_buff->base = dmub_align(mail->top, 256);
+	trace_buff->top = trace_buff->base + dmub_align(trace_buffer_size, 64);
+
+	fw_state->base = dmub_align(trace_buff->top, 256);
+	fw_state->top = fw_state->base + dmub_align(fw_state_size, 64);
+
+	out->fb_size = dmub_align(fw_state->top, 4096);
+
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_calc_fb_info(struct dmub_srv *dmub,
+				       const struct dmub_srv_fb_params *params,
+				       struct dmub_srv_fb_info *out)
+{
+	uint8_t *cpu_base;
+	uint64_t gpu_base;
+	uint32_t i;
+
+	if (!dmub->sw_init)
+		return DMUB_STATUS_INVALID;
+
+	memset(out, 0, sizeof(*out));
+
+	if (params->region_info->num_regions != DMUB_NUM_WINDOWS)
+		return DMUB_STATUS_INVALID;
+
+	cpu_base = (uint8_t *)params->cpu_addr;
+	gpu_base = params->gpu_addr;
+
+	for (i = 0; i < DMUB_NUM_WINDOWS; ++i) {
+		const struct dmub_region *reg =
+			&params->region_info->regions[i];
+
+		out->fb[i].cpu_addr = cpu_base + reg->base;
+		out->fb[i].gpu_addr = gpu_base + reg->base;
+		out->fb[i].size = reg->top - reg->base;
+	}
+
+	out->num_fb = DMUB_NUM_WINDOWS;
+
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub,
+					 bool *is_supported)
+{
+	*is_supported = false;
+
+	if (!dmub->sw_init)
+		return DMUB_STATUS_INVALID;
+
+	if (dmub->hw_funcs.is_supported)
+		*is_supported = dmub->hw_funcs.is_supported(dmub);
+
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init)
+{
+	*is_hw_init = false;
+
+	if (!dmub->sw_init)
+		return DMUB_STATUS_INVALID;
+
+	if (dmub->hw_funcs.is_hw_init)
+		*is_hw_init = dmub->hw_funcs.is_hw_init(dmub);
+
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub,
+				  const struct dmub_srv_hw_params *params)
+{
+	struct dmub_fb *inst_fb = params->fb[DMUB_WINDOW_0_INST_CONST];
+	struct dmub_fb *stack_fb = params->fb[DMUB_WINDOW_1_STACK];
+	struct dmub_fb *data_fb = params->fb[DMUB_WINDOW_2_BSS_DATA];
+	struct dmub_fb *bios_fb = params->fb[DMUB_WINDOW_3_VBIOS];
+	struct dmub_fb *mail_fb = params->fb[DMUB_WINDOW_4_MAILBOX];
+	struct dmub_fb *tracebuff_fb = params->fb[DMUB_WINDOW_5_TRACEBUFF];
+	struct dmub_fb *fw_state_fb = params->fb[DMUB_WINDOW_6_FW_STATE];
+
+	struct dmub_rb_init_params rb_params;
+	struct dmub_window cw0, cw1, cw2, cw3, cw4, cw5, cw6;
+	struct dmub_region inbox1;
+
+	if (!dmub->sw_init)
+		return DMUB_STATUS_INVALID;
+
+	dmub->fb_base = params->fb_base;
+	dmub->fb_offset = params->fb_offset;
+	dmub->psp_version = params->psp_version;
+
+	if (inst_fb && data_fb) {
+		cw0.offset.quad_part = inst_fb->gpu_addr;
+		cw0.region.base = DMUB_CW0_BASE;
+		cw0.region.top = cw0.region.base + inst_fb->size - 1;
+
+		cw1.offset.quad_part = stack_fb->gpu_addr;
+		cw1.region.base = DMUB_CW1_BASE;
+		cw1.region.top = cw1.region.base + stack_fb->size - 1;
+
+		/**
+		 * Read back all the instruction memory so we don't hang the
+		 * DMCUB when backdoor loading if the write from x86 hasn't been
+		 * flushed yet. This only occurs in backdoor loading.
+		 */
+		dmub_flush_buffer_mem(inst_fb);
+
+		if (params->load_inst_const && dmub->hw_funcs.backdoor_load)
+			dmub->hw_funcs.backdoor_load(dmub, &cw0, &cw1);
+	}
+
+	if (dmub->hw_funcs.reset)
+		dmub->hw_funcs.reset(dmub);
+
+	if (inst_fb && data_fb && bios_fb && mail_fb && tracebuff_fb &&
+	    fw_state_fb) {
+		cw2.offset.quad_part = data_fb->gpu_addr;
+		cw2.region.base = DMUB_CW0_BASE + inst_fb->size;
+		cw2.region.top = cw2.region.base + data_fb->size;
+
+		cw3.offset.quad_part = bios_fb->gpu_addr;
+		cw3.region.base = DMUB_CW3_BASE;
+		cw3.region.top = cw3.region.base + bios_fb->size;
+
+		cw4.offset.quad_part = mail_fb->gpu_addr;
+		cw4.region.base = cw3.region.top + 1;
+		cw4.region.top = cw4.region.base + mail_fb->size;
+
+		inbox1.base = cw4.region.base;
+		inbox1.top = cw4.region.top;
+
+		cw5.offset.quad_part = tracebuff_fb->gpu_addr;
+		cw5.region.base = DMUB_CW5_BASE;
+		cw5.region.top = cw5.region.base + tracebuff_fb->size;
+
+		cw6.offset.quad_part = fw_state_fb->gpu_addr;
+		cw6.region.base = DMUB_CW6_BASE;
+		cw6.region.top = cw6.region.base + fw_state_fb->size;
+
+		dmub->fw_state = fw_state_fb->cpu_addr;
+
+		if (dmub->hw_funcs.setup_windows)
+			dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4,
+						     &cw5, &cw6);
+
+		if (dmub->hw_funcs.setup_mailbox)
+			dmub->hw_funcs.setup_mailbox(dmub, &inbox1);
+	}
+
+	if (mail_fb) {
+		dmub_memset(&rb_params, 0, sizeof(rb_params));
+		rb_params.ctx = dmub;
+		rb_params.base_address = mail_fb->cpu_addr;
+		rb_params.capacity = DMUB_RB_SIZE;
+
+		dmub_rb_init(&dmub->inbox1_rb, &rb_params);
+	}
+
+	if (dmub->hw_funcs.reset_release)
+		dmub->hw_funcs.reset_release(dmub);
+
+	dmub->hw_init = true;
+
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub,
+				    const struct dmub_cmd_header *cmd)
+{
+	if (!dmub->hw_init)
+		return DMUB_STATUS_INVALID;
+
+	if (dmub_rb_push_front(&dmub->inbox1_rb, cmd))
+		return DMUB_STATUS_OK;
+
+	return DMUB_STATUS_QUEUE_FULL;
+}
+
+enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub)
+{
+	if (!dmub->hw_init)
+		return DMUB_STATUS_INVALID;
+
+	/**
+	 * Read back all the queued commands to ensure that they've
+	 * been flushed to framebuffer memory. Otherwise DMCUB might
+	 * read back stale, fully invalid or partially invalid data.
+	 */
+	dmub_rb_flush_pending(&dmub->inbox1_rb);
+
+	dmub->hw_funcs.set_inbox1_wptr(dmub, dmub->inbox1_rb.wrpt);
+	return DMUB_STATUS_OK;
+}
+
+enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub,
+					     uint32_t timeout_us)
+{
+	uint32_t i;
+
+	if (!dmub->hw_init)
+		return DMUB_STATUS_INVALID;
+
+	if (!dmub->hw_funcs.is_auto_load_done)
+		return DMUB_STATUS_OK;
+
+	for (i = 0; i <= timeout_us; i += 100) {
+		if (dmub->hw_funcs.is_auto_load_done(dmub))
+			return DMUB_STATUS_OK;
+
+		udelay(100);
+	}
+
+	return DMUB_STATUS_TIMEOUT;
+}
+
+enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub,
+					    uint32_t timeout_us)
+{
+	uint32_t i = 0;
+
+	if (!dmub->hw_init)
+		return DMUB_STATUS_INVALID;
+
+	if (!dmub->hw_funcs.is_phy_init)
+		return DMUB_STATUS_OK;
+
+	for (i = 0; i <= timeout_us; i += 10) {
+		if (dmub->hw_funcs.is_phy_init(dmub))
+			return DMUB_STATUS_OK;
+
+		udelay(10);
+	}
+
+	return DMUB_STATUS_TIMEOUT;
+}
+
+enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub,
+					uint32_t timeout_us)
+{
+	uint32_t i;
+
+	if (!dmub->hw_init)
+		return DMUB_STATUS_INVALID;
+
+	for (i = 0; i <= timeout_us; ++i) {
+		dmub->inbox1_rb.rptr = dmub->hw_funcs.get_inbox1_rptr(dmub);
+		if (dmub_rb_empty(&dmub->inbox1_rb))
+			return DMUB_STATUS_OK;
+
+		udelay(1);
+	}
+
+	return DMUB_STATUS_TIMEOUT;
+}