diff options
| author | Joseph Greathouse <Joseph.Greathouse@amd.com> | 2020-01-27 16:08:11 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-30 17:15:27 -0500 |
| commit | 18c6b74e7cfc9a599917d9e98f9835de8208e19a (patch) | |
| tree | 762334d2e03ea934772c464078eb408dcb9ca7e3 /drivers/gpu/drm/amd | |
| parent | 269a0bf79b3346fbebe7f62aef516ce61c2f02d0 (diff) | |
| download | linux-18c6b74e7cfc9a599917d9e98f9835de8208e19a.tar.gz | |
drm/amdgpu: Enable DISABLE_BARRIER_WAITCNT for Arcturus
In previous gfx9 parts, S_BARRIER shader instructions are implicitly
S_WAITCNT 0 instructions as well. This setting turns off that
mechanism in Arcturus and beyond. With this, shaders must follow the
ISA guide insofar as putting in explicit S_WAITCNT operations even
after an S_BARRIER.
v2: Fix patch title to list component
Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_0_sh_mask.h | 6 |
2 files changed, 21 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 51ec8a70660a..90f64b8bc358 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -2441,6 +2441,22 @@ static void gfx_v9_0_init_gds_vmid(struct amdgpu_device *adev) } } +static void gfx_v9_0_init_sq_config(struct amdgpu_device *adev) +{ + uint32_t tmp; + + switch (adev->asic_type) { + case CHIP_ARCTURUS: + tmp = RREG32_SOC15(GC, 0, mmSQ_CONFIG); + tmp = REG_SET_FIELD(tmp, SQ_CONFIG, + DISABLE_BARRIER_WAITCNT, 1); + WREG32_SOC15(GC, 0, mmSQ_CONFIG, tmp); + break; + default: + break; + }; +} + static void gfx_v9_0_constants_init(struct amdgpu_device *adev) { u32 tmp; @@ -2486,6 +2502,7 @@ static void gfx_v9_0_constants_init(struct amdgpu_device *adev) gfx_v9_0_init_compute_vmid(adev); gfx_v9_0_init_gds_vmid(adev); + gfx_v9_0_init_sq_config(adev); } static void gfx_v9_0_wait_for_rlc_serdes(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_0_sh_mask.h b/drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_0_sh_mask.h index c9e3f6d849a8..ea316d8dcb37 100644 --- a/drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_0_sh_mask.h +++ b/drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_0_sh_mask.h @@ -2060,7 +2060,8 @@ // addressBlock: gc_sqdec //SQ_CONFIG -#define SQ_CONFIG__UNUSED__SHIFT 0x0 +#define SQ_CONFIG__DISABLE_BARRIER_WAITCNT__SHIFT 0x0 +#define SQ_CONFIG__UNUSED__SHIFT 0x1 #define SQ_CONFIG__OVERRIDE_ALU_BUSY__SHIFT 0x7 #define SQ_CONFIG__DEBUG_EN__SHIFT 0x8 #define SQ_CONFIG__DEBUG_SINGLE_MEMOP__SHIFT 0x9 @@ -2079,7 +2080,8 @@ #define SQ_CONFIG__DISABLE_SP_REDUNDANT_THREAD_GATING__SHIFT 0x1d #define SQ_CONFIG__DISABLE_FLAT_SOFT_CLAUSE__SHIFT 0x1e #define SQ_CONFIG__DISABLE_MIMG_SOFT_CLAUSE__SHIFT 0x1f -#define SQ_CONFIG__UNUSED_MASK 0x0000007FL +#define SQ_CONFIG__DISABLE_BARRIER_WAITCNT_MASK 0x00000001L +#define SQ_CONFIG__UNUSED_MASK 0x0000007EL #define SQ_CONFIG__OVERRIDE_ALU_BUSY_MASK 0x00000080L #define SQ_CONFIG__DEBUG_EN_MASK 0x00000100L #define SQ_CONFIG__DEBUG_SINGLE_MEMOP_MASK 0x00000200L |