[AMD Official Use Only - General]
Hi Mario,
I addressed the comments, submitted the updated patchset, please review and let us know your comments.
Thanks,
Pratap
-----Original Message-----
From: Limonciello, Mario <Mario.Limonciello@xxxxxxx>
Sent: Thursday, May 9, 2024 10:15 AM
To: Nirujogi, Pratap <Pratap.Nirujogi@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Chan, Benjamin (Koon Pan) <Benjamin.Chan@xxxxxxx>; Li, King <King.Li@xxxxxxx>; Du, Bin <Bin.Du@xxxxxxx>
Subject: Re: [PATCH 2/3] drm/amd/amdgpu: Add ISP driver support
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,
> };
>
