<div dir="ltr"><div>Reviewed-by: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>></div><div> </div><div>Marek </div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 12, 2019 at 9:47 AM Haehnle, Nicolai <<a href="mailto:Nicolai.Haehnle@amd.com">Nicolai.Haehnle@amd.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">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 <<a href="mailto:nicolai.haehnle@amd.com" target="_blank">nicolai.haehnle@amd.com</a>> -- I haven't been able to properly test this yet, but it is the right thing to be doing in principle. --- drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 27 ++++++++++---------------- 1 file 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 0d94c812df1b..b8498c359191 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -157,20 +157,27 @@ static const struct soc15_reg_golden golden_settings_gc_10_1_1[] = SOC15_REG_GOLDEN_VALUE(GC, 0, mmTA_CNTL_AUX, 0xfff7ffff, 0x01030000), SOC15_REG_GOLDEN_VALUE(GC, 0, mmTCP_CNTL, 0x60000010, 0x479c0010), SOC15_REG_GOLDEN_VALUE(GC, 0, mmUTCL1_CTRL, 0x00800000, 0x00800000), }; static const struct soc15_reg_golden golden_settings_gc_10_1_nv14[] = { /* 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); static void gfx_v10_0_set_rlc_funcs(struct amdgpu_device *adev); static int gfx_v10_0_get_cu_info(struct amdgpu_device *adev, struct amdgpu_cu_info *cu_info); static uint64_t gfx_v10_0_get_gpu_clock_counter(struct amdgpu_device *adev); static void gfx_v10_0_select_se_sh(struct amdgpu_device *adev, u32 se_num, u32 sh_num, u32 instance); static u32 gfx_v10_0_get_wgp_active_bitmap_per_sh(struct amdgpu_device *adev); @@ -1476,40 +1483,35 @@ static u32 gfx_v10_0_init_pa_sc_tile_steering_override(struct amdgpu_device *ade return pa_sc_tile_steering_override; } #define DEFAULT_SH_MEM_BASES (0x6000) #define FIRST_COMPUTE_VMID (8) #define LAST_COMPUTE_VMID (16) static void gfx_v10_0_init_compute_vmid(struct amdgpu_device *adev) { int i; - uint32_t sh_mem_config; uint32_t sh_mem_bases; /* * Configure apertures: * LDS: 0x60000000'00000000 - 0x60000001'00000000 (4GB) * Scratch: 0x60000001'00000000 - 0x60000002'00000000 (4GB) * GPUVM: 0x60010000'00000000 - 0x60020000'00000000 (1TB) */ 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); mutex_unlock(&adev->srbm_mutex); } static void gfx_v10_0_tcp_harvest(struct amdgpu_device *adev) { int i, j, k; int max_wgp_per_sh = adev->gfx.config.max_cu_per_sh >> 1; @@ -1590,31 +1592,22 @@ static void gfx_v10_0_constants_init(struct amdgpu_device *adev) gfx_v10_0_get_cu_info(adev, &adev->gfx.cu_info); adev->gfx.config.pa_sc_tile_steering_override = gfx_v10_0_init_pa_sc_tile_steering_override(adev); /* XXX SH_MEM regs */ /* where to put LDS, scratch, GPUVM in FSA64 space */ mutex_lock(&adev->srbm_mutex); 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, (adev->gmc.shared_aperture_start >> 48)); WREG32_SOC15(GC, 0, mmSH_MEM_BASES, tmp); } } nv_grbm_select(adev, 0, 0, 0, 0); mutex_unlock(&adev->srbm_mutex); -- 2.20.1 _______________________________________________ amd-gfx mailing list <a href="mailto:amd-gfx@lists.freedesktop.org" target="_blank">amd-gfx@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a></blockquote></div>