Re: [PATCH v1 4/4] drm/amdgpu: add gfx queue support for gfx12 ipdump

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Series is:
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>

On Wed, Jul 3, 2024 at 3:39 AM Sunil Khatri <sunil.khatri@xxxxxxx> wrote:
>
> Add support of all the CP GFX queues for gfx12 ipdump
> to be used by devcoredump.
>
> Signed-off-by: Sunil Khatri <sunil.khatri@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 94 ++++++++++++++++++++++++++
>  1 file changed, 94 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
> index 21b8167f39bd..cf7209b93617 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
> @@ -173,6 +173,35 @@ static const struct amdgpu_hwip_reg_entry gc_cp_reg_list_12[] = {
>         SOC15_REG_ENTRY_STR(GC, 0, regCP_HQD_DEQUEUE_STATUS)
>  };
>
> +static const struct amdgpu_hwip_reg_entry gc_gfx_queue_reg_list_12[] = {
> +       /* gfx queue registers */
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_ACTIVE),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_VMID),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_QUEUE_PRIORITY),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_QUANTUM),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_BASE),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_BASE_HI),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_OFFSET),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_CNTL),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_CSMD_RPTR),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_WPTR),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_WPTR_HI),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_DEQUEUE_REQUEST),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_MAPPED),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_QUE_MGR_CONTROL),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_HQ_CONTROL0),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_HQD_HQ_STATUS0),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_MQD_BASE_ADDR),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_GFX_MQD_BASE_ADDR_HI),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_RB_WPTR_POLL_ADDR_LO),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_RB_WPTR_POLL_ADDR_HI),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_RB_RPTR),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_IB1_BASE_LO),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_IB1_BASE_HI),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_IB1_CMD_BUFSZ),
> +       SOC15_REG_ENTRY_STR(GC, 0, regCP_IB1_BUFSZ)
> +};
> +
>  #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) | \
> @@ -1265,6 +1294,19 @@ static void gfx_v12_0_alloc_ip_dump(struct amdgpu_device *adev)
>         } else {
>                 adev->gfx.ip_dump_compute_queues = ptr;
>         }
> +
> +       /* Allocate memory for gfx queue registers for all the instances */
> +       reg_count = ARRAY_SIZE(gc_gfx_queue_reg_list_12);
> +       inst = adev->gfx.me.num_me * adev->gfx.me.num_pipe_per_me *
> +               adev->gfx.me.num_queue_per_pipe;
> +
> +       ptr = kcalloc(reg_count * inst, sizeof(uint32_t), GFP_KERNEL);
> +       if (ptr == NULL) {
> +               DRM_ERROR("Failed to allocate memory for GFX Queues IP Dump\n");
> +               adev->gfx.ip_dump_gfx_queues = NULL;
> +       } else {
> +               adev->gfx.ip_dump_gfx_queues = ptr;
> +       }
>  }
>
>  static int gfx_v12_0_sw_init(void *handle)
> @@ -1462,6 +1504,7 @@ static int gfx_v12_0_sw_fini(void *handle)
>
>         kfree(adev->gfx.ip_dump_core);
>         kfree(adev->gfx.ip_dump_compute_queues);
> +       kfree(adev->gfx.ip_dump_gfx_queues);
>
>         return 0;
>  }
> @@ -4853,6 +4896,31 @@ static void gfx_v12_ip_print(void *handle, struct drm_printer *p)
>                         }
>                 }
>         }
> +
> +       /* print gfx queue registers for all instances */
> +       if (!adev->gfx.ip_dump_gfx_queues)
> +               return;
> +
> +       index = 0;
> +       reg_count = ARRAY_SIZE(gc_gfx_queue_reg_list_12);
> +       drm_printf(p, "\nnum_me: %d num_pipe: %d num_queue: %d\n",
> +                  adev->gfx.me.num_me,
> +                  adev->gfx.me.num_pipe_per_me,
> +                  adev->gfx.me.num_queue_per_pipe);
> +
> +       for (i = 0; i < adev->gfx.me.num_me; i++) {
> +               for (j = 0; j < adev->gfx.me.num_pipe_per_me; j++) {
> +                       for (k = 0; k < adev->gfx.me.num_queue_per_pipe; k++) {
> +                               drm_printf(p, "\nme %d, pipe %d, queue %d\n", i, j, k);
> +                               for (reg = 0; reg < reg_count; reg++) {
> +                                       drm_printf(p, "%-50s \t 0x%08x\n",
> +                                                  gc_gfx_queue_reg_list_12[reg].reg_name,
> +                                                  adev->gfx.ip_dump_gfx_queues[index + reg]);
> +                               }
> +                               index += reg_count;
> +                       }
> +               }
> +       }
>  }
>
>  static void gfx_v12_ip_dump(void *handle)
> @@ -4893,6 +4961,32 @@ static void gfx_v12_ip_dump(void *handle)
>         soc24_grbm_select(adev, 0, 0, 0, 0);
>         mutex_unlock(&adev->srbm_mutex);
>         amdgpu_gfx_off_ctrl(adev, true);
> +
> +       /* dump gfx queue registers for all instances */
> +       if (!adev->gfx.ip_dump_gfx_queues)
> +               return;
> +
> +       index = 0;
> +       reg_count = ARRAY_SIZE(gc_gfx_queue_reg_list_12);
> +       amdgpu_gfx_off_ctrl(adev, false);
> +       mutex_lock(&adev->srbm_mutex);
> +       for (i = 0; i < adev->gfx.me.num_me; i++) {
> +               for (j = 0; j < adev->gfx.me.num_pipe_per_me; j++) {
> +                       for (k = 0; k < adev->gfx.me.num_queue_per_pipe; k++) {
> +                               soc24_grbm_select(adev, i, j, k, 0);
> +
> +                               for (reg = 0; reg < reg_count; reg++) {
> +                                       adev->gfx.ip_dump_gfx_queues[index + reg] =
> +                                               RREG32(SOC15_REG_ENTRY_OFFSET(
> +                                                       gc_gfx_queue_reg_list_12[reg]));
> +                               }
> +                               index += reg_count;
> +                       }
> +               }
> +       }
> +       soc24_grbm_select(adev, 0, 0, 0, 0);
> +       mutex_unlock(&adev->srbm_mutex);
> +       amdgpu_gfx_off_ctrl(adev, true);
>  }
>
>  static const struct amd_ip_funcs gfx_v12_0_ip_funcs = {
> --
> 2.34.1
>




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