diff options
| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2019-07-16 13:11:22 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-16 14:49:57 -0500 |
| commit | 08473888e09b0136ceb4d65784b02b537d977a2a (patch) | |
| tree | 29f01c6dc00d3d8e5b8266d489b5cd56765aa88c /drivers/gpu/drm | |
| parent | 597292eb73eefe4e48f9f72640955813d59b733a (diff) | |
| download | linux-08473888e09b0136ceb4d65784b02b537d977a2a.tar.bz2 | |
drm/amdgpu/gfx10: set SH_MEM_CONFIG.INITIAL_INST_PREFETCH
Prefetch mode 0 is not supported and can lead to hangs with certain very
specific code patterns. Set a sound prefetch mode for all VMIDs rather
than forcing all shaders to set the prefetch mode at the beginning.
Reduce code duplication a bit while we're at it. Note that the 64-bit
address mode enum and the retry all enum are both 0, so the only
functional change is in the INITIAL_INST_PREFETCH field.
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 435678933d86..1675d5837c3c 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -109,6 +109,13 @@ static const struct soc15_reg_golden golden_settings_gc_10_0_nv10[] = /* Pending on emulation bring up */ }; +#define DEFAULT_SH_MEM_CONFIG \ + ((SH_MEM_ADDRESS_MODE_64 << SH_MEM_CONFIG__ADDRESS_MODE__SHIFT) | \ + (SH_MEM_ALIGNMENT_MODE_UNALIGNED << SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT) | \ + (SH_MEM_RETRY_MODE_ALL << SH_MEM_CONFIG__RETRY_MODE__SHIFT) | \ + (3 << SH_MEM_CONFIG__INITIAL_INST_PREFETCH__SHIFT)) + + static void gfx_v10_0_set_ring_funcs(struct amdgpu_device *adev); static void gfx_v10_0_set_irq_funcs(struct amdgpu_device *adev); static void gfx_v10_0_set_gds_init(struct amdgpu_device *adev); @@ -1415,7 +1422,6 @@ static u32 gfx_v10_0_init_pa_sc_tile_steering_override(struct amdgpu_device *ade static void gfx_v10_0_init_compute_vmid(struct amdgpu_device *adev) { int i; - uint32_t sh_mem_config; uint32_t sh_mem_bases; /* @@ -1426,15 +1432,11 @@ static void gfx_v10_0_init_compute_vmid(struct amdgpu_device *adev) */ sh_mem_bases = DEFAULT_SH_MEM_BASES | (DEFAULT_SH_MEM_BASES << 16); - sh_mem_config = SH_MEM_ADDRESS_MODE_64 | - SH_MEM_ALIGNMENT_MODE_UNALIGNED << - SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT; - mutex_lock(&adev->srbm_mutex); for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) { nv_grbm_select(adev, 0, 0, 0, i); /* CP and shaders */ - WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, sh_mem_config); + WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, DEFAULT_SH_MEM_CONFIG); WREG32_SOC15(GC, 0, mmSH_MEM_BASES, sh_mem_bases); } nv_grbm_select(adev, 0, 0, 0, 0); @@ -1527,17 +1529,8 @@ static void gfx_v10_0_constants_init(struct amdgpu_device *adev) for (i = 0; i < adev->vm_manager.id_mgr[AMDGPU_GFXHUB].num_ids; i++) { nv_grbm_select(adev, 0, 0, 0, i); /* CP and shaders */ - if (i == 0) { - tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE, - SH_MEM_ALIGNMENT_MODE_UNALIGNED); - tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, RETRY_MODE, 0); - WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, tmp); - WREG32_SOC15(GC, 0, mmSH_MEM_BASES, 0); - } else { - tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE, - SH_MEM_ALIGNMENT_MODE_UNALIGNED); - tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, RETRY_MODE, 0); - WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, tmp); + WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, DEFAULT_SH_MEM_CONFIG); + if (i != 0) { tmp = REG_SET_FIELD(0, SH_MEM_BASES, PRIVATE_BASE, (adev->gmc.private_aperture_start >> 48)); tmp = REG_SET_FIELD(tmp, SH_MEM_BASES, SHARED_BASE, |