From: Jack Xiao <Jack.Xiao@xxxxxxx>
Use the whole doorbell space for mes. Each queue in one process occupies
one doorbell slot to ring the queue submitting.
Signed-off-by: Jack Xiao <Jack.Xiao@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 32 +++++++++++++---------
1 file changed, 19 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f33e3c341f8f..b9844249d464 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1044,19 +1044,25 @@ static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)
adev->doorbell.base = pci_resource_start(adev->pdev, 2);
adev->doorbell.size = pci_resource_len(adev->pdev, 2);
- adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),
- adev->doorbell_index.max_assignment+1);
- if (adev->doorbell.num_doorbells == 0)
- return -EINVAL;
-
- /* For Vega, reserve and map two pages on doorbell BAR since SDMA
- * paging queue doorbell use the second page. The
- * AMDGPU_DOORBELL64_MAX_ASSIGNMENT definition assumes all the
- * doorbells are in the first page. So with paging queue enabled,
- * the max num_doorbells should + 1 page (0x400 in dword)
- */
- if (adev->asic_type >= CHIP_VEGA10)
- adev->doorbell.num_doorbells += 0x400;
+ if (adev->enable_mes) {
+ adev->doorbell.num_doorbells =
+ adev->doorbell.size / sizeof(u32);
+ } else {
+ adev->doorbell.num_doorbells =
+ min_t(u32, adev->doorbell.size / sizeof(u32),
+ adev->doorbell_index.max_assignment+1);
+ if (adev->doorbell.num_doorbells == 0)
+ return -EINVAL;
+
+ /* For Vega, reserve and map two pages on doorbell BAR since SDMA
+ * paging queue doorbell use the second page. The
+ * AMDGPU_DOORBELL64_MAX_ASSIGNMENT definition assumes all the
+ * doorbells are in the first page. So with paging queue enabled,
+ * the max num_doorbells should + 1 page (0x400 in dword)
+ */
+ if (adev->asic_type >= CHIP_VEGA10)
+ adev->doorbell.num_doorbells += 0x400;
+ }
adev->doorbell.ptr = ioremap(adev->doorbell.base,
adev->doorbell.num_doorbells *
--
2.35.1
