On 5/8/2024 09:50, Pratap Nirujogi wrote:
Add the isp driver in amdgpu to support ISP device on the APUs that
supports ISP IP block. ISP hw block is used for camera front-end, pre
and post processing operations.
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/Makefile | 3 +
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 +
drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c | 298 ++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h | 54 ++++
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 3 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 5 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 1 +
7 files changed, 368 insertions(+)
create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index de7b76327f5b..12ba76025cb7 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -324,4 +324,7 @@ amdgpu-y += $(AMD_DISPLAY_FILES)
endif
+# add isp block
+amdgpu-y += amdgpu_isp.o
+
obj-$(CONFIG_DRM_AMDGPU)+= amdgpu.o
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index eb60d28a3a13..6d7f9ef53269 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -112,6 +112,7 @@
#include "amdgpu_xcp.h"
#include "amdgpu_seq64.h"
#include "amdgpu_reg_state.h"
+#include "amdgpu_isp.h"
#define MAX_GPU_INSTANCE 64
@@ -1045,6 +1046,9 @@ struct amdgpu_device {
/* display related functionality */
struct amdgpu_display_manager dm;
+ /* isp */
+ struct amdgpu_isp isp;
+
/* mes */
bool enable_mes;
bool enable_mes_kiq;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c
new file mode 100644
index 000000000000..dcc01a339a43
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c
@@ -0,0 +1,298 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+
+#include <linux/irqdomain.h>
+#include <linux/pm_domain.h>
+#include <linux/platform_device.h>
+#include <sound/designware_i2s.h>
+#include <sound/pcm.h>
+#include <linux/acpi.h>
+#include <linux/firmware.h>
+
+#include "amdgpu_smu.h"
+#include "atom.h"
+#include "amdgpu_isp.h"
+#include "smu_internal.h"
+#include "smu_v11_5_ppsmc.h"
+#include "smu_v11_5_pmfw.h"
+
+#define mmDAGB0_WRCLI5_V4_1 0x6811C
+#define mmDAGB0_WRCLI9_V4_1 0x6812C
+#define mmDAGB0_WRCLI10_V4_1 0x68130
+#define mmDAGB0_WRCLI14_V4_1 0x68140
+#define mmDAGB0_WRCLI19_V4_1 0x68154
+#define mmDAGB0_WRCLI20_V4_1 0x68158
+
+static int isp_sw_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ pr_info("%s called adev %p\n", __func__, adev);
This and other pr_info() statements are too noisy. I guess they were
bringup code that should be torn out now.
+
+ adev->isp.parent = adev->dev;
+
+ adev->isp.cgs_device = amdgpu_cgs_create_device(adev);
+ if (!adev->isp.cgs_device)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int isp_sw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ pr_info("%s called adev %p\n", __func__, adev);
+
+ if (adev->isp.cgs_device)
+ amdgpu_cgs_destroy_device(adev->isp.cgs_device);
+
+ return 0;
+}
+
+/**
+ * isp_hw_init - start and test isp block
+ *
+ * @adev: amdgpu_device pointer
Wrong argument for the function.
+ *
+ */
+static int isp_hw_init(void *handle)
+{
+ int r;
+ u64 isp_base;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ const struct amdgpu_ip_block *ip_block =
+ amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ISP);
+
+ if (!ip_block)
+ return -EINVAL;
+
+ if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
+ return -EINVAL;
+
+ isp_base = adev->rmmio_base;
+
+ adev->isp.isp_cell = kcalloc(1, sizeof(struct mfd_cell), GFP_KERNEL);
+ if (!adev->isp.isp_cell) {
+ r = -ENOMEM;
+ DRM_ERROR("%s: isp mfd cell alloc failed\n", __func__);
+ goto failure;
+ }
+
+ adev->isp.isp_res = kcalloc(2, sizeof(struct resource), GFP_KERNEL);
+ if (!adev->isp.isp_res) {
+ r = -ENOMEM;
+ DRM_ERROR("%s: isp mfd res alloc failed\n", __func__);
+ goto failure;
+ }
+
+ adev->isp.isp_pdata = kzalloc(sizeof(*adev->isp.isp_pdata), GFP_KERNEL);
+ if (!adev->isp.isp_pdata) {
+ r = -ENOMEM;
+ DRM_ERROR("%s: isp platform data alloc failed\n", __func__);
+ goto failure;
+ }
+
+ // initialize isp platform data
+ adev->isp.isp_pdata->adev = (void *)adev;
+ adev->isp.isp_pdata->asic_type = adev->asic_type;
+ adev->isp.isp_pdata->base_rmmio_size = adev->rmmio_size;
+
+ adev->isp.isp_res[0].name = "isp41_reg";
Although first being introduced for ISP 4.1, this file is "generic" not
for isp 4.1. I think the names should also be generic.
IE "isp_reg" and "isp_irq".
If there's a strong need for having the right version in the name, the
string should be built dynamically.
+ adev->isp.isp_res[0].flags = IORESOURCE_MEM;
+ adev->isp.isp_res[0].start = isp_base;
+ adev->isp.isp_res[0].end = isp_base + ISP_REGS_OFFSET_END;
+
+ adev->isp.isp_res[1].name = "isp41_irq";
+ adev->isp.isp_res[1].flags = IORESOURCE_IRQ;
+ adev->isp.isp_res[1].start = amdgpu_irq_create_mapping(adev, 162);
+ adev->isp.isp_res[1].end = adev->isp.isp_res[1].start;
+
+ adev->isp.isp_cell[0].name = "amd_isp41_capture";
+ adev->isp.isp_cell[0].num_resources = 2;
+ adev->isp.isp_cell[0].resources = &adev->isp.isp_res[0];
+ adev->isp.isp_cell[0].platform_data = adev->isp.isp_pdata;
+ adev->isp.isp_cell[0].pdata_size = sizeof(struct isp_platform_data);
+
+ r = mfd_add_hotplug_devices(adev->isp.parent, adev->isp.isp_cell, 1);
+ if (r) {
+ DRM_ERROR("%s: add mfd hotplug device failed\n", __func__);
+ goto failure;
+ }
+
+ // Temporary WA added to disable MMHUB TLSi until the GART initialization
+ // is ready to support MMHUB TLSi and SAW for ISP HW to access GART memory
+ // using the TLSi path
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI5_V4_1 >> 2, 0xFE5FEAA8);
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI9_V4_1 >> 2, 0xFE5FEAA8);
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI10_V4_1 >> 2, 0xFE5FEAA8);
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI14_V4_1 >> 2, 0xFE5FEAA8);
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI19_V4_1 >> 2, 0xFE5FEAA8);
+ cgs_write_register(adev->isp.cgs_device, mmDAGB0_WRCLI20_V4_1 >> 2, 0xFE5FEAA8);
+
+ return 0;
+
+failure:
+
+ kfree(adev->isp.isp_pdata);
+ kfree(adev->isp.isp_res);
+ kfree(adev->isp.isp_cell);
+
+ return r;
+}
+
+/**
+ * isp_hw_fini - stop the hardware block
+ *
+ * @adev: amdgpu_device pointer
This is the wrong argument for the function.
+ *
+ */
+static int isp_hw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ // remove isp mfd device
+ mfd_remove_devices(adev->isp.parent);
+
+ kfree(adev->isp.isp_res);
+ kfree(adev->isp.isp_cell);
+ kfree(adev->isp.isp_pdata);
+
+ return 0;
+}
+
+static int isp_suspend(void *handle)
+{
+ return 0;
+}
+
+static int isp_resume(void *handle)
+{
+ return 0;
+}
+
+static int isp_load_fw_by_psp(struct amdgpu_device *adev)
+{
+ const struct common_firmware_header *hdr;
+ char ucode_prefix[30];
+ char fw_name[40];
+ int r = 0;
+
+ // get isp fw binary name and path
+ amdgpu_ucode_ip_version_decode(adev, ISP_HWIP, ucode_prefix,
+ sizeof(ucode_prefix));
+ snprintf(fw_name, sizeof(fw_name), "amdgpu/%s.bin", ucode_prefix);
+
+ // read isp fw
+ r = amdgpu_ucode_request(adev, &adev->isp.fw, fw_name);
+ if (r) {
+ DRM_ERROR("%s: failed to read isp fw %s\n", __func__, fw_name);
+ amdgpu_ucode_release(&adev->isp.fw);
+ return r;
+ }
+
+ hdr = (const struct common_firmware_header *)adev->isp.fw->data;
+
+ adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].ucode_id =
+ AMDGPU_UCODE_ID_ISP;
+ adev->firmware.ucode[AMDGPU_UCODE_ID_ISP].fw = adev->isp.fw;
+
+ adev->firmware.fw_size +=
+ ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
+
+ DRM_INFO("isp fw <%s> load success, (base_addr, size)=(%p,%d)\n", fw_name,
+ adev->isp.fw->data, (int)adev->isp.fw->size);
Considering there is currently both an ERR and a WARN if it fails, this
is probably too noisy and should be down to debug.
+
+ return r;
+}
+
+static int isp_early_init(void *handle)
+{
+ int ret = 0;
Since you don't actually display the error code at all, is this variable
really needed? I would say either show the error in the DRM_WARN
statement or drop the variable.
But also think about how many messages happen in the failure path. I
think you should aim for exactly 1 WARN if it's missing.
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ ret = isp_load_fw_by_psp(adev);
+ if (ret) {
+ DRM_WARN("%s: isp fw load failed\n", __func__); > + ret = 0;
+ }
+
+ return ret;
+}
+
+static bool isp_is_idle(void *handle)
+{
+ return true;
+}
+
+static int isp_wait_for_idle(void *handle)
+{
+ return 0;
+}
+
+static int isp_soft_reset(void *handle)
+{
+ return 0;
+}
+
+static int isp_set_clockgating_state(void *handle,
+ enum amd_clockgating_state state)
+{
+ return 0;
+}
+
+static int isp_set_powergating_state(void *handle,
+ enum amd_powergating_state state)
+{
+ return 0;
+}
+
+static const struct amd_ip_funcs isp_ip_funcs = {
+ .name = "isp_ip",
+ .early_init = isp_early_init,
+ .late_init = NULL,
+ .sw_init = isp_sw_init,
+ .sw_fini = isp_sw_fini,
+ .hw_init = isp_hw_init,
+ .hw_fini = isp_hw_fini,
+ .suspend = isp_suspend,
+ .resume = isp_resume,
+ .is_idle = isp_is_idle,
+ .wait_for_idle = isp_wait_for_idle,
+ .soft_reset = isp_soft_reset,
+ .set_clockgating_state = isp_set_clockgating_state,
+ .set_powergating_state = isp_set_powergating_state,
+};
+
+const struct amdgpu_ip_block_version isp_ip_block = {
+ .type = AMD_IP_BLOCK_TYPE_ISP,
+ .major = 4,
+ .minor = 1,
+ .rev = 0,
+ .funcs = &isp_ip_funcs,
+};
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h
new file mode 100644
index 000000000000..2adcb4b4dc6e
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+
+#ifndef __AMDGPU_ISP_H__
+#define __AMDGPU_ISP_H__
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/core.h>
+
+#define ISP_REGS_OFFSET_END 0x629A4
+
+struct isp_platform_data {
+ void *adev;
+ u32 asic_type;
+ resource_size_t base_rmmio_size;
+};
+
+struct amdgpu_isp {
+ struct device *parent;
+ struct cgs_device *cgs_device;
+ struct mfd_cell *isp_cell;
+ struct resource *isp_res;
+ struct isp_platform_data *isp_pdata;
+ unsigned int harvest_config;
+ const struct firmware *fw;
+};
+
+extern const struct amdgpu_ip_block_version isp_ip_block;
+
+#endif /* __AMDGPU_ISP_H__ */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 37820dd03cab..b4bd943a7cc8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -2539,6 +2539,9 @@ static int psp_get_fw_type(struct amdgpu_firmware_info *ucode,
case AMDGPU_UCODE_ID_JPEG_RAM:
*type = GFX_FW_TYPE_JPEG_RAM;
break;
+ case AMDGPU_UCODE_ID_ISP:
+ *type = GFX_FW_TYPE_ISP;
+ break;
case AMDGPU_UCODE_ID_MAXIMUM:
default:
return -EINVAL;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
index 75ece8a2f96b..a9de78bb96e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
@@ -712,6 +712,8 @@ const char *amdgpu_ucode_name(enum AMDGPU_UCODE_ID ucode_id)
return "RS64_MEC_P2_STACK";
case AMDGPU_UCODE_ID_CP_RS64_MEC_P3_STACK:
return "RS64_MEC_P3_STACK";
+ case AMDGPU_UCODE_ID_ISP:
+ return "ISP";
default:
return "UNKNOWN UCODE";
}
@@ -1411,6 +1413,9 @@ void amdgpu_ucode_ip_version_decode(struct amdgpu_device *adev, int block_type,
case VPE_HWIP:
ip_name = "vpe";
break;
+ case ISP_HWIP:
+ ip_name = "isp";
+ break;
default:
BUG();
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
index a3c04f711099..db745ab7b0c8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
@@ -523,6 +523,7 @@ enum AMDGPU_UCODE_ID {
AMDGPU_UCODE_ID_UMSCH_MM_CMD_BUFFER,
AMDGPU_UCODE_ID_P2S_TABLE,
AMDGPU_UCODE_ID_JPEG_RAM,
+ AMDGPU_UCODE_ID_ISP,
AMDGPU_UCODE_ID_MAXIMUM,
};
