From adf64e214280a0230af0638c1825b3812421c958 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Tue, 18 Jul 2023 13:02:58 -0500 Subject: [PATCH] drm/amd: Avoid reading the VBIOS part number twice The VBIOS part number is read both in amdgpu_atom_parse() as well as in atom_get_vbios_pn() and stored twice in the `struct atom_context` structure. Remove the first unnecessary read and move the `pr_info` line from that read into the second. v2: squash in unused variable removal Signed-off-by: Mario Limonciello Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 20 ++++++++++---------- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 8 ++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | 8 ++++---- drivers/gpu/drm/amd/amdgpu/atom.c | 14 ++------------ drivers/gpu/drm/amd/amdgpu/atom.h | 2 -- 7 files changed, 22 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index f4e3c133a16c..dce9e7d5e4ec 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -1776,7 +1776,7 @@ static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev, struct amdgpu_device *adev = drm_to_adev(ddev); struct atom_context *ctx = adev->mode_info.atom_context; - return sysfs_emit(buf, "%s\n", ctx->vbios_version); + return sysfs_emit(buf, "%s\n", ctx->vbios_pn); } static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c index 4620c4712ce3..c9f16eab0f3d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c @@ -60,10 +60,10 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev, u32 *fru_addr) switch (adev->asic_type) { case CHIP_VEGA20: /* D161 and D163 are the VG20 server SKUs */ - if (strnstr(atom_ctx->vbios_version, "D161", - sizeof(atom_ctx->vbios_version)) || - strnstr(atom_ctx->vbios_version, "D163", - sizeof(atom_ctx->vbios_version))) { + if (strnstr(atom_ctx->vbios_pn, "D161", + sizeof(atom_ctx->vbios_pn)) || + strnstr(atom_ctx->vbios_pn, "D163", + sizeof(atom_ctx->vbios_pn))) { if (fru_addr) *fru_addr = FRU_EEPROM_MADDR_6; return true; @@ -72,16 +72,16 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev, u32 *fru_addr) } case CHIP_ALDEBARAN: /* All Aldebaran SKUs have an FRU */ - if (!strnstr(atom_ctx->vbios_version, "D673", - sizeof(atom_ctx->vbios_version))) + if (!strnstr(atom_ctx->vbios_pn, "D673", + sizeof(atom_ctx->vbios_pn))) if (fru_addr) *fru_addr = FRU_EEPROM_MADDR_6; return true; case CHIP_SIENNA_CICHLID: - if (strnstr(atom_ctx->vbios_version, "D603", - sizeof(atom_ctx->vbios_version))) { - if (strnstr(atom_ctx->vbios_version, "D603GLXE", - sizeof(atom_ctx->vbios_version))) { + if (strnstr(atom_ctx->vbios_pn, "D603", + sizeof(atom_ctx->vbios_pn))) { + if (strnstr(atom_ctx->vbios_pn, "D603GLXE", + sizeof(atom_ctx->vbios_pn))) { return false; } else { if (fru_addr) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index cab2fdd5b76a..12f3c7ad7d04 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -1722,7 +1722,7 @@ static int amdgpu_debugfs_firmware_info_show(struct seq_file *m, void *unused) seq_printf(m, "MES feature version: %u, firmware version: 0x%08x\n", fw_info.feature, fw_info.ver); - seq_printf(m, "VBIOS version: %s\n", ctx->vbios_version); + seq_printf(m, "VBIOS version: %s\n", ctx->vbios_pn); return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index fc317b005943..0ba86cc88481 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -2442,10 +2442,10 @@ static void amdgpu_ras_get_quirks(struct amdgpu_device *adev) if (!ctx) return; - if (strnstr(ctx->vbios_version, "D16406", - sizeof(ctx->vbios_version)) || - strnstr(ctx->vbios_version, "D36002", - sizeof(ctx->vbios_version))) + if (strnstr(ctx->vbios_pn, "D16406", + sizeof(ctx->vbios_pn)) || + strnstr(ctx->vbios_pn, "D36002", + sizeof(ctx->vbios_pn))) adev->ras_hw_enabled |= (1 << AMDGPU_RAS_BLOCK__GFX); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c index 0648dfe559af..4287743e1212 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c @@ -194,9 +194,9 @@ static bool __get_eeprom_i2c_addr(struct amdgpu_device *adev, /* VEGA20 and ARCTURUS */ if (adev->asic_type == CHIP_VEGA20) control->i2c_address = EEPROM_I2C_MADDR_0; - else if (strnstr(atom_ctx->vbios_version, + else if (strnstr(atom_ctx->vbios_pn, "D342", - sizeof(atom_ctx->vbios_version))) + sizeof(atom_ctx->vbios_pn))) control->i2c_address = EEPROM_I2C_MADDR_0; else control->i2c_address = EEPROM_I2C_MADDR_4; @@ -205,8 +205,8 @@ static bool __get_eeprom_i2c_addr(struct amdgpu_device *adev, control->i2c_address = EEPROM_I2C_MADDR_0; return true; case IP_VERSION(13, 0, 2): - if (strnstr(atom_ctx->vbios_version, "D673", - sizeof(atom_ctx->vbios_version))) + if (strnstr(atom_ctx->vbios_pn, "D673", + sizeof(atom_ctx->vbios_pn))) control->i2c_address = EEPROM_I2C_MADDR_4; else control->i2c_address = EEPROM_I2C_MADDR_0; diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c index 1c5d9388ad0b..9f63ddb89b75 100644 --- a/drivers/gpu/drm/amd/amdgpu/atom.c +++ b/drivers/gpu/drm/amd/amdgpu/atom.c @@ -1438,6 +1438,8 @@ static void atom_get_vbios_pn(struct atom_context *ctx) ctx->vbios_pn[count] = 0; } + + pr_info("ATOM BIOS: %s\n", ctx->vbios_pn); } static void atom_get_vbios_version(struct atom_context *ctx) @@ -1460,11 +1462,9 @@ 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) return NULL; @@ -1502,16 +1502,6 @@ struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios) return NULL; } - idx = CU16(ATOM_ROM_PART_NUMBER_PTR); - if (idx == 0) - idx = 0x80; - - str = CSTR(idx); - if (*str != '\0') { - pr_info("ATOM BIOS: %s\n", str); - strlcpy(ctx->vbios_version, str, sizeof(ctx->vbios_version)); - } - atom_rom_header = (struct _ATOM_ROM_HEADER *)CSTR(base); if (atom_rom_header->usMasterDataTableOffset != 0) { master_table = (struct _ATOM_MASTER_DATA_TABLE *) diff --git a/drivers/gpu/drm/amd/amdgpu/atom.h b/drivers/gpu/drm/amd/amdgpu/atom.h index 0c1839824520..55bf99d5288d 100644 --- a/drivers/gpu/drm/amd/amdgpu/atom.h +++ b/drivers/gpu/drm/amd/amdgpu/atom.h @@ -33,7 +33,6 @@ struct drm_device; #define ATOM_ATI_MAGIC_PTR 0x30 #define ATOM_ATI_MAGIC " 761295520" #define ATOM_ROM_TABLE_PTR 0x48 -#define ATOM_ROM_PART_NUMBER_PTR 0x6E #define ATOM_ROM_MAGIC "ATOM" #define ATOM_ROM_MAGIC_PTR 4 @@ -143,7 +142,6 @@ struct atom_context { int io_mode; uint32_t *scratch; int scratch_size_bytes; - char vbios_version[20]; uint8_t name[STRLEN_LONG]; uint8_t vbios_pn[STRLEN_LONG]; -- 2.11.0