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drm/amdgpu/si: load special ucode for certain MC configs

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Special MC ucode is required for these memory configurations.

Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-12-20 16:40:48 -05:00
parent ef736d394e
commit f1d877be65
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
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@ -44,6 +44,7 @@ MODULE_FIRMWARE("radeon/tahiti_mc.bin");
MODULE_FIRMWARE("radeon/pitcairn_mc.bin");
MODULE_FIRMWARE("radeon/verde_mc.bin");
MODULE_FIRMWARE("radeon/oland_mc.bin");
MODULE_FIRMWARE("radeon/si58_mc.bin");
#define MC_SEQ_MISC0__MT__MASK 0xf0000000
#define MC_SEQ_MISC0__MT__GDDR1 0x10000000
@ -113,6 +114,7 @@ static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
const char *chip_name;
char fw_name[30];
int err;
bool is_58_fw = false;
DRM_DEBUG("\n");
@ -135,7 +137,14 @@ static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
default: BUG();
}
snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
/* this memory configuration requires special firmware */
if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
is_58_fw = true;
if (is_58_fw)
snprintf(fw_name, sizeof(fw_name), "radeon/si58_mc.bin");
else
snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
if (err)
goto out;