The FW expects us to allocate at least one page as context
space to process gang, process, GDS and FW related work.
This patch creates a joint object for the same, and calculates
GPU space offsets of these spaces.
V1: Addressed review comments on RFC patch:
Alex: Make this function IP specific
V2: Addressed review comments from Christian
- Allocate only one object for total FW space, and calculate
offsets for each of these objects.
V3: Integration with doorbell manager
V4: Review comments:
- Remove shadow from FW space list from cover letter (Alex)
- Alignment of macro (Luben)
V5: Merged patches 5 and 6 into this single patch
Addressed review comments:
- Use lower_32_bits instead of mask (Christian)
- gfx_v11_0 instead of gfx_v11 in function names (Alex)
- Shadow and GDS objects are now coming from userspace (Christian,
Alex)
V6:
- Add a comment to replace amdgpu_bo_create_kernel() with
amdgpu_bo_create() during fw_ctx object creation (Christian).
- Move proc_ctx_gpu_addr, gang_ctx_gpu_addr and fw_ctx_gpu_addr out
of generic queue structure and make it gen11 specific (Alex).
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Christian Koenig <christian.koenig@xxxxxxx>
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxx>
Signed-off-by: Arvind Yadav <arvind.yadav@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 61 +++++++++++++++++++
.../gpu/drm/amd/include/amdgpu_userqueue.h | 1 +
2 files changed, 62 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 6760abda08df..8ffb5dee72a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -61,6 +61,9 @@
#define regCGTT_WD_CLK_CTRL_BASE_IDX 1
#define regRLC_RLCS_BOOTLOAD_STATUS_gc_11_0_1 0x4e7e
#define regRLC_RLCS_BOOTLOAD_STATUS_gc_11_0_1_BASE_IDX 1
+#define AMDGPU_USERQ_PROC_CTX_SZ PAGE_SIZE
+#define AMDGPU_USERQ_GANG_CTX_SZ PAGE_SIZE
+#define AMDGPU_USERQ_FW_CTX_SZ PAGE_SIZE
MODULE_FIRMWARE("amdgpu/gc_11_0_0_pfp.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_0_me.bin");
@@ -6424,6 +6427,56 @@ const struct amdgpu_ip_block_version gfx_v11_0_ip_block =
.funcs = &gfx_v11_0_ip_funcs,
};
+static void gfx_v11_0_userq_destroy_ctx_space(struct amdgpu_userq_mgr *uq_mgr,
+ struct amdgpu_usermode_queue *queue)
+{
+ struct amdgpu_userq_obj *ctx = &queue->fw_obj;
+
+ amdgpu_bo_free_kernel(&ctx->obj, &ctx->gpu_addr, &ctx->cpu_ptr);
+}
+
+static int gfx_v11_0_userq_create_ctx_space(struct amdgpu_userq_mgr *uq_mgr,
+ struct amdgpu_usermode_queue *queue,
+ struct drm_amdgpu_userq_mqd_gfx_v11_0 *mqd_user)
+{
+ struct amdgpu_device *adev = uq_mgr->adev;
+ struct amdgpu_userq_obj *ctx = &queue->fw_obj;
+ struct v11_gfx_mqd *mqd = queue->mqd.cpu_ptr;
+ uint64_t fw_ctx_gpu_addr;
+ int r, size;
+
+ /*
+ * The FW expects at least one page space allocated for
+ * process ctx, gang ctx and fw ctx each. Create an object
+ * for the same.
+ */
+ size = AMDGPU_USERQ_PROC_CTX_SZ + AMDGPU_USERQ_FW_CTX_SZ +
+ AMDGPU_USERQ_GANG_CTX_SZ;
+ r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_GTT,
+ &ctx->obj,
+ &ctx->gpu_addr,
+ &ctx->cpu_ptr);
+ if (r) {
+ DRM_ERROR("Failed to allocate ctx space bo for userqueue, err:%d\n", r);
+ return r;
+ }
+
+ fw_ctx_gpu_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ +
+ AMDGPU_USERQ_GANG_CTX_SZ;
+ mqd->fw_work_area_base_lo = lower_32_bits(fw_ctx_gpu_addr);
+ mqd->fw_work_area_base_lo = upper_32_bits(fw_ctx_gpu_addr);
+
+ /* Shadow and GDS objects come directly from userspace */
+ mqd->shadow_base_lo = lower_32_bits(mqd_user->shadow_va);
+ mqd->shadow_base_hi = upper_32_bits(mqd_user->shadow_va);
+
+ mqd->gds_bkup_base_lo = lower_32_bits(mqd_user->gds_va);
+ mqd->gds_bkup_base_hi = upper_32_bits(mqd_user->gds_va);
+
+ return 0;
+}
+
static int gfx_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
struct drm_amdgpu_userq_in *args_in,
struct amdgpu_usermode_queue *queue)
@@ -6480,6 +6533,13 @@ static int gfx_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
goto free_mqd;
}
+ /* Create BO for FW operations */
+ r = gfx_v11_0_userq_create_ctx_space(uq_mgr, queue, &mqd_user);
+ if (r) {
+ DRM_ERROR("Failed to allocate BO for userqueue (%d)", r);
+ goto free_mqd;
+ }
+
return 0;
free_mqd:
@@ -6492,6 +6552,7 @@ gfx_v11_0_userq_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr, struct amdgpu_userm
{
struct amdgpu_userq_obj *mqd = &queue->mqd;
+ gfx_v11_0_userq_destroy_ctx_space(uq_mgr, queue);
amdgpu_bo_free_kernel(&mqd->obj, &mqd->gpu_addr, &mqd->cpu_ptr);
}
diff --git a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
index 240f92796f00..34e20daa06c8 100644
--- a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
+++ b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
@@ -44,6 +44,7 @@ struct amdgpu_usermode_queue {
struct amdgpu_userq_mgr *userq_mgr;
struct amdgpu_vm *vm;
struct amdgpu_userq_obj mqd;
+ struct amdgpu_userq_obj fw_obj;
