diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c index 41807817de7d..1a374ec0514a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c @@ -31,6 +31,9 @@ #include "soc15_common.h" +#define mmGCUTCL2_HARVEST_BYPASS_GROUPS_YELLOW_CARP 0x16f8 +#define mmGCUTCL2_HARVEST_BYPASS_GROUPS_YELLOW_CARP_BASE_IDX 0 + static const char *gfxhub_client_ids[] = { "CB/DB", "Reserved", @@ -531,6 +534,42 @@ static int gfxhub_v2_1_get_xgmi_info(struct amdgpu_device *adev) return 0; } +static void gfxhub_v2_1_utcl2_harvest(struct amdgpu_device *adev) +{ + int i; + u32 tmp = 0, disabled_sa = 0; + u32 efuse_setting, vbios_setting; + + u32 max_sa_mask = amdgpu_gfx_create_bitmask( + adev->gfx.config.max_sh_per_se * + adev->gfx.config.max_shader_engines); + + if (adev->asic_type == CHIP_YELLOW_CARP) { + /* Get SA disabled bitmap from eFuse setting */ + efuse_setting = RREG32_SOC15(GC, 0, mmCC_GC_SA_UNIT_DISABLE); + efuse_setting &= CC_GC_SA_UNIT_DISABLE__SA_DISABLE_MASK; + efuse_setting >>= CC_GC_SA_UNIT_DISABLE__SA_DISABLE__SHIFT; + + /* Get SA disabled bitmap from VBIOS setting */ + vbios_setting = RREG32_SOC15(GC, 0, mmGC_USER_SA_UNIT_DISABLE); + vbios_setting &= GC_USER_SA_UNIT_DISABLE__SA_DISABLE_MASK; + vbios_setting >>= GC_USER_SA_UNIT_DISABLE__SA_DISABLE__SHIFT; + + disabled_sa |= efuse_setting | vbios_setting; + /* Make sure not to report harvested SAs beyond the max SA count */ + disabled_sa &= max_sa_mask; + + for (i = 0; disabled_sa > 0; i++) { + if (disabled_sa & 1) + tmp |= 0x3 << (i * 2); + disabled_sa >>= 1; + } + disabled_sa = tmp; + + WREG32_SOC15(GC, 0, mmGCUTCL2_HARVEST_BYPASS_GROUPS_YELLOW_CARP, disabled_sa); + } +} + const struct amdgpu_gfxhub_funcs gfxhub_v2_1_funcs = { .get_fb_location = gfxhub_v2_1_get_fb_location, .get_mc_fb_offset = gfxhub_v2_1_get_mc_fb_offset, @@ -540,4 +579,5 @@ const struct amdgpu_gfxhub_funcs gfxhub_v2_1_funcs = { .set_fault_enable_default = gfxhub_v2_1_set_fault_enable_default, .init = gfxhub_v2_1_init, .get_xgmi_info = gfxhub_v2_1_get_xgmi_info, + .utcl2_harvest = gfxhub_v2_1_utcl2_harvest, }; |