drm/amdgpu: add support for lsdma v7_1

Add support for LSDMA v7_1_0.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 006d49d6b4af370274e705752a35433168cc8d2c..9c9c73b73ac8ebbfb6ebc61c2bde9ee8fc4ba093 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -86,7 +86,7 @@ amdgpu-y += \
        nbio_v7_2.o hdp_v4_0.o hdp_v5_0.o aldebaran_reg_init.o aldebaran.o soc21.o soc24.o \
        sienna_cichlid.o smu_v13_0_10.o nbio_v4_3.o hdp_v6_0.o nbio_v7_7.o hdp_v5_2.o lsdma_v6_0.o \
        nbio_v7_9.o aqua_vanjaram.o nbio_v7_11.o lsdma_v7_0.o hdp_v7_0.o nbif_v6_3_1.o \
-       cyan_skillfish_reg_init.o soc_v1_0.o
+       cyan_skillfish_reg_init.o soc_v1_0.o lsdma_v7_1.o
 
 # add DF block
 amdgpu-y += \

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 9b0a3107bc9060fff03ad80e1e4aca20db8c1a0b..2669b0346a60bd9abef8ee23f64433681d5e723d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -87,6 +87,7 @@
 #include "sdma_v7_1.h"
 #include "lsdma_v6_0.h"
 #include "lsdma_v7_0.h"
+#include "lsdma_v7_1.h"
 #include "vcn_v2_0.h"
 #include "jpeg_v2_0.h"
 #include "vcn_v3_0.h"
@@ -3308,6 +3309,9 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
        case IP_VERSION(7, 0, 1):
                adev->lsdma.funcs = &lsdma_v7_0_funcs;
                break;
+       case IP_VERSION(7, 1, 0):
+               adev->lsdma.funcs = &lsdma_v7_1_funcs;
+               break;
        default:
                break;
        }

diff --git a/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.c b/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.c
new file mode 100644 (file)
index 0000000..d93a0e6
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2026 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/delay.h>
+#include "amdgpu.h"
+#include "lsdma_v7_1.h"
+#include "amdgpu_lsdma.h"
+
+#include "lsdma/lsdma_7_1_0_offset.h"
+#include "lsdma/lsdma_7_1_0_sh_mask.h"
+
+static int lsdma_v7_1_wait_pio_status(struct amdgpu_device *adev)
+{
+       return amdgpu_lsdma_wait_for(adev, SOC15_REG_OFFSET(LSDMA, 0, regLSDMA_PIO_STATUS),
+                       LSDMA_PIO_STATUS__PIO_IDLE_MASK | LSDMA_PIO_STATUS__PIO_FIFO_EMPTY_MASK,
+                       LSDMA_PIO_STATUS__PIO_IDLE_MASK | LSDMA_PIO_STATUS__PIO_FIFO_EMPTY_MASK);
+}
+
+static int lsdma_v7_1_copy_mem(struct amdgpu_device *adev,
+                              uint64_t src_addr,
+                              uint64_t dst_addr,
+                              uint64_t size)
+{
+       int ret;
+       uint32_t tmp;
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_SRC_ADDR_LO, lower_32_bits(src_addr));
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_SRC_ADDR_HI, upper_32_bits(src_addr));
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_LO, lower_32_bits(dst_addr));
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_HI, upper_32_bits(dst_addr));
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONTROL, 0x0);
+
+       tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, COUNT, size);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, RAW_WAIT, 0);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, CONSTANT_FILL, 0);
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND, tmp);
+
+       ret = lsdma_v7_1_wait_pio_status(adev);
+       if (ret)
+               dev_err(adev->dev, "LSDMA PIO failed to copy memory!\n");
+
+       return ret;
+}
+
+static int lsdma_v7_1_fill_mem(struct amdgpu_device *adev,
+                              uint64_t dst_addr,
+                              uint32_t data,
+                              uint64_t size)
+{
+       int ret;
+       uint32_t tmp;
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONSTFILL_DATA, data);
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_LO, lower_32_bits(dst_addr));
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_HI, upper_32_bits(dst_addr));
+
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONTROL, 0x0);
+
+       tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, COUNT, size);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, RAW_WAIT, 0);
+       tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, CONSTANT_FILL, 1);
+       WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND, tmp);
+
+       ret = lsdma_v7_1_wait_pio_status(adev);
+       if (ret)
+               dev_err(adev->dev, "LSDMA PIO failed to fill memory!\n");
+
+       return ret;
+}
+
+const struct amdgpu_lsdma_funcs lsdma_v7_1_funcs = {
+       .copy_mem = lsdma_v7_1_copy_mem,
+       .fill_mem = lsdma_v7_1_fill_mem,
+};

diff --git a/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.h b/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.h
new file mode 100644 (file)
index 0000000..3d1ab60
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/lsdma_v7_1.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2026 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.
+ *
+ */
+
+#ifndef __LSDMA_V7_1_H__
+#define __LSDMA_V7_1_H__
+
+#include "soc15_common.h"
+
+extern const struct amdgpu_lsdma_funcs lsdma_v7_1_funcs;
+
+#endif /* __LSDMA_V7_1_H__ */