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| author | Joseph Greathouse <Joseph.Greathouse@amd.com> | 2020-01-09 17:41:43 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-14 10:18:58 -0500 |
| commit | 22d39fe729fdd21acf9c29c5892a71ede4b7c619 (patch) | |
| tree | 57260872498afc2bf57da39c4f752af8c0e605e9 /drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | |
| parent | ae99fc35ceea9ae9c496987d113187464b33b2b8 (diff) | |
| download | linux-22d39fe729fdd21acf9c29c5892a71ede4b7c619.tar.gz linux-22d39fe729fdd21acf9c29c5892a71ede4b7c619.tar.bz2 linux-22d39fe729fdd21acf9c29c5892a71ede4b7c619.zip | |
drm/amdgpu: Match TC hash settings to DF settings (v2)
On Arcturus, data fabric hashing is set by the VBIOS, and
affects which addresses map to which memory channels. The
gfx core's caches also need to know this mapping, but the
hash settings for these these caches is set by the driver.
This change queries the DF to understand how the VBIOS
configured DF, then matches the TC hash configuration bits
to do the same thing.
v2: squash in warning fix
Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 9b94e9d15f7a..ac4153c235ad 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -3637,6 +3637,23 @@ static int gfx_v9_0_cp_resume(struct amdgpu_device *adev) return 0; } +static void gfx_v9_0_init_tcp_config(struct amdgpu_device *adev) +{ + u32 tmp; + + if (adev->asic_type != CHIP_ARCTURUS) + return; + + tmp = RREG32_SOC15(GC, 0, mmTCP_ADDR_CONFIG); + tmp = REG_SET_FIELD(tmp, TCP_ADDR_CONFIG, ENABLE64KHASH, + adev->df.hash_status.hash_64k); + tmp = REG_SET_FIELD(tmp, TCP_ADDR_CONFIG, ENABLE2MHASH, + adev->df.hash_status.hash_2m); + tmp = REG_SET_FIELD(tmp, TCP_ADDR_CONFIG, ENABLE1GHASH, + adev->df.hash_status.hash_1g); + WREG32_SOC15(GC, 0, mmTCP_ADDR_CONFIG, tmp); +} + static void gfx_v9_0_cp_enable(struct amdgpu_device *adev, bool enable) { if (adev->asic_type != CHIP_ARCTURUS) @@ -3654,6 +3671,8 @@ static int gfx_v9_0_hw_init(void *handle) gfx_v9_0_constants_init(adev); + gfx_v9_0_init_tcp_config(adev); + r = adev->gfx.rlc.funcs->resume(adev); if (r) return r; |