[PATCH] drm/amdgpu: Add vbios info ioctl interface
Gu, JiaWei (Will)
JiaWei.Gu at amd.com
Thu Apr 22 13:18:16 UTC 2021
CC Tom.
> On Apr 22, 2021, at 21:09, Gu, JiaWei (Will) <JiaWei.Gu at amd.com> wrote:
>
> <[v2][umr]add-vbios-info-query.patch>
> UMR patch which calls this new IOCTL attached.
>
> Best regards,
> Jiawei
>
>> On Apr 22, 2021, at 10:34, Jiawei Gu <JiaWei.Gu at amd.com> wrote:
>>
>> Add AMDGPU_INFO_VBIOS_INFO subquery id for detailed vbios info.
>>
>> Signed-off-by: Jiawei Gu <Jiawei.Gu at amd.com>
>> ---
>> drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 19 +++
>> drivers/gpu/drm/amd/amdgpu/atom.c | 158 +++++++++++++++++++++
>> drivers/gpu/drm/amd/amdgpu/atom.h | 11 ++
>> drivers/gpu/drm/amd/include/atomfirmware.h | 16 ++-
>> include/uapi/drm/amdgpu_drm.h | 15 ++
>> 5 files changed, 213 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> index 39ee88d29cca..a20b016b05ab 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> @@ -861,6 +861,25 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
>> min((size_t)size, (size_t)(bios_size - bios_offset)))
>> ? -EFAULT : 0;
>> }
>> + case AMDGPU_INFO_VBIOS_INFO: {
>> + struct drm_amdgpu_info_vbios vbios_info = {};
>> + struct atom_context *atom_context;
>> +
>> + atom_context = adev->mode_info.atom_context;
>> + memcpy(vbios_info.name, atom_context->name, sizeof(atom_context->name));
>> + vbios_info.dbdf = PCI_DEVID(adev->pdev->bus->number, adev->pdev->devfn);
>> + memcpy(vbios_info.vbios_pn, atom_context->vbios_pn, sizeof(atom_context->vbios_pn));
>> + vbios_info.version = atom_context->version;
>> + memcpy(vbios_info.date, atom_context->date, sizeof(atom_context->date));
>> + memcpy(vbios_info.serial, adev->serial, sizeof(adev->serial));
>> + vbios_info.dev_id = adev->pdev->device;
>> + vbios_info.rev_id = adev->pdev->revision;
>> + vbios_info.sub_dev_id = atom_context->sub_dev_id;
>> + vbios_info.sub_ved_id = atom_context->sub_ved_id;
>> +
>> + return copy_to_user(out, &vbios_info,
>> + min((size_t)size, sizeof(vbios_info))) ? -EFAULT : 0;
>> + }
>> default:
>> DRM_DEBUG_KMS("Invalid request %d\n",
>> info->vbios_info.type);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c
>> index 3dcb8b32f48b..0e2f0ea13b40 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/atom.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/atom.c
>> @@ -31,6 +31,7 @@
>>
>> #define ATOM_DEBUG
>>
>> +#include "atomfirmware.h"
>> #include "atom.h"
>> #include "atom-names.h"
>> #include "atom-bits.h"
>> @@ -1299,12 +1300,153 @@ static void atom_index_iio(struct atom_context *ctx, int base)
>> }
>> }
>>
>> +static void atom_get_vbios_name(struct atom_context *ctx)
>> +{
>> + unsigned char *p_rom;
>> + unsigned char str_num;
>> + unsigned short off_to_vbios_str;
>> + unsigned char *c_ptr;
>> + int name_size;
>> + int i;
>> +
>> + const char *na = "--N/A--";
>> + char *back;
>> +
>> + p_rom = ctx->bios;
>> +
>> + str_num = *(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS);
>> + if (str_num != 0) {
>> + off_to_vbios_str =
>> + *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
>> +
>> + c_ptr = (unsigned char *)(p_rom + off_to_vbios_str);
>> + } else {
>> + /* do not know where to find name */
>> + memcpy(ctx->name, na, 7);
>> + ctx->name[7] = 0;
>> + return;
>> + }
>> +
>> + /*
>> + * skip the atombios strings, usually 4
>> + * 1st is P/N, 2nd is ASIC, 3rd is PCI type, 4th is Memory type
>> + */
>> + for (i = 0; i < str_num; i++) {
>> + while (*c_ptr != 0)
>> + c_ptr++;
>> + c_ptr++;
>> + }
>> +
>> + /* skip the following 2 chars: 0x0D 0x0A */
>> + c_ptr += 2;
>> +
>> + name_size = strnlen(c_ptr, STRLEN_LONG - 1);
>> + memcpy(ctx->name, c_ptr, name_size);
>> + back = ctx->name + name_size;
>> + while ((*--back) == ' ')
>> + ;
>> + *(back + 1) = '\0';
>> +}
>> +
>> +static void atom_get_vbios_date(struct atom_context *ctx)
>> +{
>> + unsigned char *p_rom;
>> + unsigned char *date_in_rom;
>> +
>> + p_rom = ctx->bios;
>> +
>> + date_in_rom = p_rom + OFFSET_TO_VBIOS_DATE;
>> +
>> + ctx->date[0] = '2';
>> + ctx->date[1] = '0';
>> + ctx->date[2] = date_in_rom[6];
>> + ctx->date[3] = date_in_rom[7];
>> + ctx->date[4] = '/';
>> + ctx->date[5] = date_in_rom[0];
>> + ctx->date[6] = date_in_rom[1];
>> + ctx->date[7] = '/';
>> + ctx->date[8] = date_in_rom[3];
>> + ctx->date[9] = date_in_rom[4];
>> + ctx->date[10] = ' ';
>> + ctx->date[11] = date_in_rom[9];
>> + ctx->date[12] = date_in_rom[10];
>> + ctx->date[13] = date_in_rom[11];
>> + ctx->date[14] = date_in_rom[12];
>> + ctx->date[15] = date_in_rom[13];
>> + ctx->date[16] = '\0';
>> +}
>> +
>> +static unsigned char *atom_find_str_in_rom(struct atom_context *ctx, char *str, int start,
>> + int end, int maxlen)
>> +{
>> + unsigned long str_off;
>> + unsigned char *p_rom;
>> + unsigned short str_len;
>> +
>> + str_off = 0;
>> + str_len = strnlen(str, maxlen);
>> + p_rom = ctx->bios;
>> +
>> + for (; start <= end; ++start) {
>> + for (str_off = 0; str_off < str_len; ++str_off) {
>> + if (str[str_off] != *(p_rom + start + str_off))
>> + break;
>> + }
>> +
>> + if (str_off == str_len || str[str_off] == 0)
>> + return p_rom + start;
>> + }
>> + return NULL;
>> +}
>> +
>> +static void atom_get_vbios_pn(struct atom_context *ctx)
>> +{
>> + unsigned char *p_rom;
>> + unsigned short off_to_vbios_str;
>> + unsigned char *vbios_str;
>> + int count;
>> +
>> + off_to_vbios_str = 0;
>> + p_rom = ctx->bios;
>> +
>> + if (*(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS) != 0) {
>> + off_to_vbios_str =
>> + *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
>> +
>> + vbios_str = (unsigned char *)(p_rom + off_to_vbios_str);
>> + } else {
>> + vbios_str = p_rom + OFFSET_TO_VBIOS_PART_NUMBER;
>> + }
>> +
>> + if (*vbios_str == 0) {
>> + vbios_str = atom_find_str_in_rom(ctx, BIOS_ATOM_PREFIX, 3, 1024, 64);
>> + if (vbios_str == NULL)
>> + vbios_str += sizeof(BIOS_ATOM_PREFIX) - 1;
>> + }
>> + if (vbios_str != NULL && *vbios_str == 0)
>> + vbios_str++;
>> +
>> + if (vbios_str != NULL) {
>> + count = 0;
>> + while ((count < BIOS_STRING_LENGTH) && vbios_str[count] >= ' ' &&
>> + vbios_str[count] <= 'z') {
>> + ctx->vbios_pn[count] = vbios_str[count];
>> + count++;
>> + }
>> +
>> + ctx->vbios_pn[count] = 0;
>> + }
>> +}
>> +
>> struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
>> {
>> int base;
>> struct atom_context *ctx =
>> kzalloc(sizeof(struct atom_context), GFP_KERNEL);
>> char *str;
>> + struct _ATOM_ROM_HEADER *atom_rom_header;
>> + struct _ATOM_MASTER_DATA_TABLE *master_table;
>> + struct _ATOM_FIRMWARE_INFO *atom_fw_info;
>> u16 idx;
>>
>> if (!ctx)
>> @@ -1353,6 +1495,22 @@ struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
>> strlcpy(ctx->vbios_version, str, sizeof(ctx->vbios_version));
>> }
>>
>> + atom_rom_header = (struct _ATOM_ROM_HEADER *)CSTR(base);
>> + ctx->sub_dev_id = atom_rom_header->usSubsystemVendorID;
>> + ctx->sub_ved_id = atom_rom_header->usSubsystemID;
>> + if (atom_rom_header->usMasterDataTableOffset != 0) {
>> + master_table = (struct _ATOM_MASTER_DATA_TABLE *)
>> + CSTR(atom_rom_header->usMasterDataTableOffset);
>> + if (master_table->ListOfDataTables.FirmwareInfo != 0) {
>> + atom_fw_info = (struct _ATOM_FIRMWARE_INFO *)
>> + CSTR(master_table->ListOfDataTables.FirmwareInfo);
>> + ctx->version = atom_fw_info->ulFirmwareRevision;
>> + }
>> + }
>> +
>> + atom_get_vbios_name(ctx);
>> + atom_get_vbios_pn(ctx);
>> + atom_get_vbios_date(ctx);
>>
>> return ctx;
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/atom.h b/drivers/gpu/drm/amd/amdgpu/atom.h
>> index d279759cab47..c729f7ceba4f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/atom.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/atom.h
>> @@ -112,6 +112,10 @@ struct drm_device;
>> #define ATOM_IO_SYSIO 2
>> #define ATOM_IO_IIO 0x80
>>
>> +#define STRLEN_NORMAL 32
>> +#define STRLEN_LONG 64
>> +#define STRLEN_VERYLONG 254
>> +
>> struct card_info {
>> struct drm_device *dev;
>> void (* reg_write)(struct card_info *, uint32_t, uint32_t); /* filled by driver */
>> @@ -140,6 +144,13 @@ struct atom_context {
>> uint32_t *scratch;
>> int scratch_size_bytes;
>> char vbios_version[20];
>> +
>> + uint8_t name[STRLEN_LONG];
>> + uint8_t vbios_pn[STRLEN_LONG];
>> + uint32_t version;
>> + uint8_t date[STRLEN_NORMAL];
>> + uint32_t sub_dev_id;
>> + uint32_t sub_ved_id;
>> };
>>
>> extern int amdgpu_atom_debug;
>> diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
>> index c77ed38c20fb..3a8e404099b0 100644
>> --- a/drivers/gpu/drm/amd/include/atomfirmware.h
>> +++ b/drivers/gpu/drm/amd/include/atomfirmware.h
>> @@ -197,6 +197,8 @@ enum atom_dp_vs_preemph_def{
>> DP_VS_LEVEL0_PREEMPH_LEVEL3 = 0x18,
>> };
>>
>> +#define BIOS_ATOM_PREFIX "ATOMBIOS"
>> +#define BIOS_STRING_LENGTH 43
>>
>> /*
>> enum atom_string_def{
>> @@ -209,12 +211,14 @@ atom_bios_string = "ATOM"
>> #pragma pack(1) /* BIOS data must use byte aligment*/
>>
>> enum atombios_image_offset{
>> -OFFSET_TO_ATOM_ROM_HEADER_POINTER =0x00000048,
>> -OFFSET_TO_ATOM_ROM_IMAGE_SIZE =0x00000002,
>> -OFFSET_TO_ATOMBIOS_ASIC_BUS_MEM_TYPE =0x94,
>> -MAXSIZE_OF_ATOMBIOS_ASIC_BUS_MEM_TYPE =20, /*including the terminator 0x0!*/
>> -OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS =0x2f,
>> -OFFSET_TO_GET_ATOMBIOS_STRING_START =0x6e,
>> + OFFSET_TO_ATOM_ROM_HEADER_POINTER = 0x00000048,
>> + OFFSET_TO_ATOM_ROM_IMAGE_SIZE = 0x00000002,
>> + OFFSET_TO_ATOMBIOS_ASIC_BUS_MEM_TYPE = 0x94,
>> + MAXSIZE_OF_ATOMBIOS_ASIC_BUS_MEM_TYPE = 20, /*including the terminator 0x0!*/
>> + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS = 0x2f,
>> + OFFSET_TO_GET_ATOMBIOS_STRING_START = 0x6e,
>> + OFFSET_TO_VBIOS_PART_NUMBER = 0x80,
>> + OFFSET_TO_VBIOS_DATE = 0x50,
>> };
>>
>> /****************************************************************************
>> diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
>> index 8b832f7458f2..77980445d486 100644
>> --- a/include/uapi/drm/amdgpu_drm.h
>> +++ b/include/uapi/drm/amdgpu_drm.h
>> @@ -758,6 +758,8 @@ struct drm_amdgpu_cs_chunk_data {
>> #define AMDGPU_INFO_VBIOS_SIZE 0x1
>> /* Subquery id: Query vbios image */
>> #define AMDGPU_INFO_VBIOS_IMAGE 0x2
>> + /* Subquery id: Query vbios info */
>> + #define AMDGPU_INFO_VBIOS_INFO 0x3
>> /* Query UVD handles */
>> #define AMDGPU_INFO_NUM_HANDLES 0x1C
>> /* Query sensor related information */
>> @@ -951,6 +953,19 @@ struct drm_amdgpu_info_firmware {
>> __u32 feature;
>> };
>>
>> +struct drm_amdgpu_info_vbios {
>> + __u8 name[64];
>> + __u32 dbdf;
>> + __u8 vbios_pn[64];
>> + __u32 version;
>> + __u8 date[32];
>> + __u8 serial[16];
>> + __u32 dev_id;
>> + __u32 rev_id;
>> + __u32 sub_dev_id;
>> + __u32 sub_ved_id;
>> +};
>> +
>> #define AMDGPU_VRAM_TYPE_UNKNOWN 0
>> #define AMDGPU_VRAM_TYPE_GDDR1 1
>> #define AMDGPU_VRAM_TYPE_DDR2 2
>> --
>> 2.17.1
>>
>
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