From 26405ff4306a7be83a551d65b801998ae926f276 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 14 Dec 2023 12:18:45 -0500 Subject: drm/amdgpu: move kiq_reg_write_reg_wait() out of amdgpu_virt.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's used for more than just SR-IOV now, so move it to amdgpu_gmc.c and rename it to better match the functionality and update the comments in the code paths to better document when each path is used and why. No functional change. Reviewed-by: Shaoyun.liu Acked-by: Christian König Signed-off-by: Alex Deucher Cc: Shaoyun.Liu@amd.com Cc: Christian.Koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 53 -------------------------------- 1 file changed, 53 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 0dcff2889e25..f5c66e0038b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -71,59 +71,6 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev) amdgpu_num_kcq = 2; } -void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, - uint32_t reg0, uint32_t reg1, - uint32_t ref, uint32_t mask, - uint32_t xcc_inst) -{ - struct amdgpu_kiq *kiq = &adev->gfx.kiq[xcc_inst]; - struct amdgpu_ring *ring = &kiq->ring; - signed long r, cnt = 0; - unsigned long flags; - uint32_t seq; - - if (adev->mes.ring.sched.ready) { - amdgpu_mes_reg_write_reg_wait(adev, reg0, reg1, - ref, mask); - return; - } - - spin_lock_irqsave(&kiq->ring_lock, flags); - amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_reg_write_reg_wait(ring, reg0, reg1, - ref, mask); - r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT); - if (r) - goto failed_undo; - - amdgpu_ring_commit(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); - - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - - /* don't wait anymore for IRQ context */ - if (r < 1 && in_interrupt()) - goto failed_kiq; - - might_sleep(); - while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) { - - msleep(MAX_KIQ_REG_BAILOUT_INTERVAL); - r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); - } - - if (cnt > MAX_KIQ_REG_TRY) - goto failed_kiq; - - return; - -failed_undo: - amdgpu_ring_undo(ring); - spin_unlock_irqrestore(&kiq->ring_lock, flags); -failed_kiq: - dev_err(adev->dev, "failed to write reg %x wait reg %x\n", reg0, reg1); -} - /** * amdgpu_virt_request_full_gpu() - request full gpu access * @adev: amdgpu device. -- cgit v1.2.3 From 362936d613e81ee7c3d11a185103c4f3e4f59f2a Mon Sep 17 00:00:00 2001 From: Victor Skvortsov Date: Mon, 22 Jan 2024 12:45:09 -0500 Subject: amdgpu/drm: Use vram manager for virtualization page retirement In runtime, use vram manager for virtualization page retirement. Signed-off-by: Victor Skvortsov Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index f5c66e0038b5..6ff7d3fb2008 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -250,11 +250,11 @@ static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev) if (!*data) goto data_failure; - bps = kmalloc_array(align_space, sizeof((*data)->bps), GFP_KERNEL); + bps = kmalloc_array(align_space, sizeof(*(*data)->bps), GFP_KERNEL); if (!bps) goto bps_failure; - bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL); + bps_bo = kmalloc_array(align_space, sizeof(*(*data)->bps_bo), GFP_KERNEL); if (!bps_bo) goto bps_bo_failure; @@ -287,8 +287,10 @@ static void amdgpu_virt_ras_release_bp(struct amdgpu_device *adev) for (i = data->last_reserved - 1; i >= 0; i--) { bo = data->bps_bo[i]; - amdgpu_bo_free_kernel(&bo, NULL, NULL); - data->bps_bo[i] = bo; + if (bo) { + amdgpu_bo_free_kernel(&bo, NULL, NULL); + data->bps_bo[i] = bo; + } data->last_reserved = i; } } @@ -328,6 +330,8 @@ static void amdgpu_virt_ras_reserve_bps(struct amdgpu_device *adev) { struct amdgpu_virt *virt = &adev->virt; struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; + struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr; + struct ttm_resource_manager *man = &mgr->manager; struct amdgpu_bo *bo = NULL; uint64_t bp; int i; @@ -343,12 +347,18 @@ static void amdgpu_virt_ras_reserve_bps(struct amdgpu_device *adev) * 2) a ras bad page has been reserved (duplicate error injection * for one page); */ - if (amdgpu_bo_create_kernel_at(adev, bp << AMDGPU_GPU_PAGE_SHIFT, - AMDGPU_GPU_PAGE_SIZE, - &bo, NULL)) - DRM_DEBUG("RAS WARN: reserve vram for retired page %llx fail\n", bp); - - data->bps_bo[i] = bo; + if (ttm_resource_manager_used(man)) { + amdgpu_vram_mgr_reserve_range(&adev->mman.vram_mgr, + bp << AMDGPU_GPU_PAGE_SHIFT, + AMDGPU_GPU_PAGE_SIZE); + data->bps_bo[i] = NULL; + } else { + if (amdgpu_bo_create_kernel_at(adev, bp << AMDGPU_GPU_PAGE_SHIFT, + AMDGPU_GPU_PAGE_SIZE, + &bo, NULL)) + DRM_DEBUG("RAS WARN: reserve vram for retired page %llx fail\n", bp); + data->bps_bo[i] = bo; + } data->last_reserved = i + 1; bo = NULL; } -- cgit v1.2.3 From 8093383ae7f5f196e3d4f3cc47abb557c81b9e6f Mon Sep 17 00:00:00 2001 From: Victor Lu Date: Mon, 12 Feb 2024 17:33:45 -0500 Subject: drm/amdgpu: Improve error checking in amdgpu_virt_rlcg_reg_rw (v2) The current error detection only looks for a timeout. This should be changed to also check scratch_reg1 for any errors returned from RLCG. v2: remove new error value Signed-off-by: Victor Lu Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 5 +++-- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 1 + 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 6ff7d3fb2008..7a4eae36778a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -979,7 +979,7 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f * SCRATCH_REG0 = read/write value * SCRATCH_REG1[30:28] = command * SCRATCH_REG1[19:0] = address in dword - * SCRATCH_REG1[26:24] = Error reporting + * SCRATCH_REG1[27:24] = Error reporting */ writel(v, scratch_reg0); writel((offset | flag), scratch_reg1); @@ -993,7 +993,8 @@ u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 f udelay(10); } - if (i >= timeout) { + tmp = readl(scratch_reg1); + if (i >= timeout || (tmp & AMDGPU_RLCG_SCRATCH1_ERROR_MASK) != 0) { if (amdgpu_sriov_rlcg_error_report_enabled(adev)) { if (tmp & AMDGPU_RLCG_VFGATE_DISABLED) { dev_err(adev->dev, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h index fa7be5f277b9..3f59b7b5523f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h @@ -45,6 +45,7 @@ #define AMDGPU_RLCG_REG_NOT_IN_RANGE 0x1000000 #define AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK 0xFFFFF +#define AMDGPU_RLCG_SCRATCH1_ERROR_MASK 0xF000000 /* all asic after AI use this offset */ #define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5 -- cgit v1.2.3