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drm/amdgpu: return tcc_disabled_mask to userspace

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UMDs need this for correct programming of harvested chips.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2019-09-24 17:53:25 -04:00 committed by Alex Deucher
parent 49379032aa
commit 815fb4c9d7
5 changed files with 19 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@ -81,9 +81,10 @@
* - 3.32.0 - Add syncobj timeline support to AMDGPU_CS.
* - 3.33.0 - Fixes for GDS ENOMEM failures in AMDGPU_CS.
* - 3.34.0 - Non-DC can flip correctly between buffers with different pitches
* - 3.35.0 - Add drm_amdgpu_info_device::tcc_disabled_mask
*/
#define KMS_DRIVER_MAJOR 3
#define KMS_DRIVER_MINOR 34
#define KMS_DRIVER_MINOR 35
#define KMS_DRIVER_PATCHLEVEL 0
#define AMDGPU_MAX_TIMEOUT_PARAM_LENTH 256

1
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
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@ -165,6 +165,7 @@ struct amdgpu_gfx_config {
uint32_t num_sc_per_sh;
uint32_t num_packer_per_sc;
uint32_t pa_sc_tile_steering_override;
uint64_t tcc_disabled_mask;
};
struct amdgpu_cu_info {

2
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
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@ -787,6 +787,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
dev_info.pa_sc_tile_steering_override =
adev->gfx.config.pa_sc_tile_steering_override;
dev_info.tcc_disabled_mask = adev->gfx.config.tcc_disabled_mask;
return copy_to_user(out, &dev_info,
min((size_t)size, sizeof(dev_info))) ? -EFAULT : 0;
}

12
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
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@ -1691,6 +1691,17 @@ static void gfx_v10_0_tcp_harvest(struct amdgpu_device *adev)
}
}
static void gfx_v10_0_get_tcc_info(struct amdgpu_device *adev)
{
/* TCCs are global (not instanced). */
uint32_t tcc_disable = RREG32_SOC15(GC, 0, mmCGTS_TCC_DISABLE) |
RREG32_SOC15(GC, 0, mmCGTS_USER_TCC_DISABLE);
adev->gfx.config.tcc_disabled_mask =
REG_GET_FIELD(tcc_disable, CGTS_TCC_DISABLE, TCC_DISABLE) |
(REG_GET_FIELD(tcc_disable, CGTS_TCC_DISABLE, HI_TCC_DISABLE) << 16);
}
static void gfx_v10_0_constants_init(struct amdgpu_device *adev)
{
u32 tmp;
@ -1702,6 +1713,7 @@ static void gfx_v10_0_constants_init(struct amdgpu_device *adev)
gfx_v10_0_setup_rb(adev);
gfx_v10_0_get_cu_info(adev, &adev->gfx.cu_info);
gfx_v10_0_get_tcc_info(adev);
adev->gfx.config.pa_sc_tile_steering_override =
gfx_v10_0_init_pa_sc_tile_steering_override(adev);

2
include/uapi/drm/amdgpu_drm.h
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@ -1003,6 +1003,8 @@ struct drm_amdgpu_info_device {
__u64 high_va_max;
/* gfx10 pa_sc_tile_steering_override */
__u32 pa_sc_tile_steering_override;
/* disabled TCCs */
__u64 tcc_disabled_mask;
};
struct drm_amdgpu_info_hw_ip {