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drm/amdgpu: create context space for usermode queue

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The MES FW expects us to allocate at least one page as context
space to process gang and process related context data. 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).

V7:
   - Using helper function to create/destroy userqueue objects.
   - Removed FW object space allocation.

V8:
   - Updating FW object address from user values.

V9:
   - uppdated function name from gfx_v11_* to mes_v11_*

V10:
   - making this patch independent of IP based changes, moving any
     GFX object related changes in GFX specific patch (Alex)

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Acked-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shashank Sharma 2024-05-02 13:46:06 +02:00 committed by Alex Deucher
parent fbf136b932
commit defb41e8ef
2 changed files with 34 additions and 0 deletions
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33
drivers/gpu/drm/amd/amdgpu/mes_v11_0_userqueue.c
View File

@ -27,6 +27,31 @@
#include "mes_v11_0.h"
#include "mes_v11_0_userqueue.h"
#define AMDGPU_USERQ_PROC_CTX_SZ PAGE_SIZE
#define AMDGPU_USERQ_GANG_CTX_SZ PAGE_SIZE
static int mes_v11_0_userq_create_ctx_space(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_usermode_queue *queue,
struct drm_amdgpu_userq_in *mqd_user)
{
struct amdgpu_userq_obj *ctx = &queue->fw_obj;
int r, size;
/*
* The FW expects at least one page space allocated for
* process ctx and gang ctx each. Create an object
* for the same.
*/
size = AMDGPU_USERQ_PROC_CTX_SZ + AMDGPU_USERQ_GANG_CTX_SZ;
r = amdgpu_userqueue_create_object(uq_mgr, ctx, size);
if (r) {
DRM_ERROR("Failed to allocate ctx space bo for userqueue, err:%d\n", r);
return r;
}
return 0;
}
static int mes_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
struct drm_amdgpu_userq_in *args_in,
struct amdgpu_usermode_queue *queue)
@ -73,6 +98,13 @@ static int mes_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
goto free_mqd;
}
/* Create BO for FW operations */
r = mes_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:
@ -88,6 +120,7 @@ static void
mes_v11_0_userq_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_usermode_queue *queue)
{
amdgpu_userqueue_destroy_object(uq_mgr, &queue->fw_obj);
kfree(queue->userq_prop);
amdgpu_userqueue_destroy_object(uq_mgr, &queue->mqd);
}

1
drivers/gpu/drm/amd/include/amdgpu_userqueue.h
View File

@ -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;
};
struct amdgpu_userq_funcs {