[PATCH] drm/amdgpu: implement 2+1 PD support for Raven v2
Alex Deucher
alexdeucher at gmail.com
Thu Dec 14 18:04:15 UTC 2017
On Thu, Dec 14, 2017 at 7:03 AM, Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
> Instead of falling back to 2 level and very limited address space use
> 2+1 PD support and 128TB + 512GB of virtual address space.
>
> v2: cleanup defines, rebase on top of level enum
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 6 ++++
> drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 42 ++++++++++++++++++---------
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 26 ++++++++++++++---
> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 49 ++++++++++++++++++++------------
> 5 files changed, 89 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 0cb2235f4798..8ac5875472bd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -541,6 +541,7 @@ struct amdgpu_mc {
> u64 private_aperture_end;
> /* protects concurrent invalidation */
> spinlock_t invalidate_lock;
> + bool translate_further;
> };
>
> /*
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index 1056484de0e3..edd2ea52dc00 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -70,6 +70,12 @@ struct amdgpu_bo_list_entry;
> /* PDE is handled as PTE for VEGA10 */
> #define AMDGPU_PDE_PTE (1ULL << 54)
>
> +/* PTE is handled as PDE for VEGA10 (Translate Further) */
> +#define AMDGPU_PTE_TF (1ULL << 56)
> +
> +/* PDE Block Fragment Size for VEGA10 */
> +#define AMDGPU_PDE_BFS(a) ((uint64_t)a << 59)
Safer to put parens around the a in case some one passes in an expression.
> +
> /* VEGA10 only */
> #define AMDGPU_PTE_MTYPE(a) ((uint64_t)a << 57)
> #define AMDGPU_PTE_MTYPE_MASK AMDGPU_PTE_MTYPE(3ULL)
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> index 1d392f186e0d..197005e54d78 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> @@ -143,8 +143,15 @@ static void gfxhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
> WREG32_SOC15(GC, 0, mmVM_L2_CNTL2, tmp);
>
> tmp = mmVM_L2_CNTL3_DEFAULT;
> - tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
> - tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
> + if (adev->mc.translate_further) {
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
> + L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
> + } else {
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
> + L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
> + }
Is this correct? Aren't the cases reversed here? Won't this change 2
and 4 level?
> WREG32_SOC15(GC, 0, mmVM_L2_CNTL3, tmp);
>
> tmp = mmVM_L2_CNTL4_DEFAULT;
> @@ -182,31 +189,40 @@ static void gfxhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev)
>
> static void gfxhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
> {
> - int i;
> + unsigned num_level, block_size;
> uint32_t tmp;
> + int i;
> +
> + num_level = adev->vm_manager.num_level;
> + block_size = adev->vm_manager.block_size;
> + if (adev->mc.translate_further)
> + num_level -= 1;
> + else
> + block_size -= 9;
>
> for (i = 0; i <= 14; i++) {
> tmp = RREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
> - adev->vm_manager.num_level);
> + num_level);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
> + 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - PAGE_TABLE_BLOCK_SIZE,
> - adev->vm_manager.block_size - 9);
> + PAGE_TABLE_BLOCK_SIZE,
> + block_size);
> /* Send no-retry XNACK on fault to suppress VM fault storm. */
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 1b5dfccfd5d5..ab0a74b0d30f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -476,6 +476,21 @@ static void gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, int level,
> *addr = adev->vm_manager.vram_base_offset + *addr -
> adev->mc.vram_start;
> BUG_ON(*addr & 0xFFFF00000000003FULL);
> +
> + if (!adev->mc.translate_further)
> + return;
> +
> + if (level == AMDGPU_VM_PDB1) {
> + /* Set the block fragment size */
> + if (!(*flags & AMDGPU_PDE_PTE))
> + *flags |= AMDGPU_PDE_BFS(0x9);
> +
> + } else if (level == AMDGPU_VM_PDB0) {
> + if (*flags & AMDGPU_PDE_PTE)
> + *flags &= ~AMDGPU_PDE_PTE;
> + else
> + *flags |= AMDGPU_PTE_TF;
> + }
> }
>
> static const struct amdgpu_gart_funcs gmc_v9_0_gart_funcs = {
> @@ -765,11 +780,14 @@ static int gmc_v9_0_sw_init(void *handle)
> switch (adev->asic_type) {
> case CHIP_RAVEN:
> adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
> - if (adev->rev_id == 0x0 || adev->rev_id == 0x1)
> + if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
> amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
> - else
> - /* vm_size is 64GB for legacy 2-level page support */
> - amdgpu_vm_adjust_size(adev, 64, 9, 1, 48);
> + } else {
> + /* vm_size is 128TB + 512GB for legacy 3-level page support */
> + amdgpu_vm_adjust_size(adev, 128 * 1024 + 512, 9, 2, 48);
> + adev->mc.translate_further =
> + adev->vm_manager.num_level > 1;
> + }
> break;
> case CHIP_VEGA10:
> /* XXX Don't know how to get VRAM type yet. */
> diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> index 0c5a76f88d35..ba1dfc7fb79e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> @@ -155,10 +155,15 @@ static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
> tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
> WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
>
> - tmp = mmVM_L2_CNTL3_DEFAULT;
> - tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
> - tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
> - WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, tmp);
> + if (adev->mc.translate_further) {
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
> + L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
> + } else {
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
> + L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
> + }
Same here.
>
> tmp = mmVM_L2_CNTL4_DEFAULT;
> tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
> @@ -196,32 +201,40 @@ static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev)
>
> static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
> {
> - int i;
> + unsigned num_level, block_size;
> uint32_t tmp;
> + int i;
> +
> + num_level = adev->vm_manager.num_level;
> + block_size = adev->vm_manager.block_size;
> + if (adev->mc.translate_further)
> + num_level -= 1;
> + else
> + block_size -= 9;
>
> for (i = 0; i <= 14; i++) {
> tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i);
> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
> + num_level);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - ENABLE_CONTEXT, 1);
> - tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - PAGE_TABLE_DEPTH, adev->vm_manager.num_level);
> - tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
> + 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> + EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - PAGE_TABLE_BLOCK_SIZE,
> - adev->vm_manager.block_size - 9);
> + PAGE_TABLE_BLOCK_SIZE,
> + block_size);
> /* Send no-retry XNACK on fault to suppress VM fault storm. */
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
> --
> 2.11.0
>
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