[PATCH 4/5] drm/amdgpu/gfx11: add aggregated doorbell support
Jack Xiao
Jack.Xiao at amd.com
Tue Jul 12 02:55:00 UTC 2022
Port aggregated doorbell support to gfx11.
Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 82 ++++++++++++++++++++++----
1 file changed, 71 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 942d41a65f2f..0a90b61cc126 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5297,14 +5297,45 @@ static u64 gfx_v11_0_ring_get_wptr_gfx(struct amdgpu_ring *ring)
static void gfx_v11_0_ring_set_wptr_gfx(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
+ uint32_t *wptr_saved;
+ uint32_t *is_queue_unmap;
+ uint64_t aggregated_db_index;
+ uint32_t mqd_size = adev->mqds[AMDGPU_HW_IP_GFX].mqd_size;
+ uint64_t wptr_tmp;
- if (ring->use_doorbell) {
- /* XXX check if swapping is necessary on BE */
- atomic64_set((atomic64_t *)ring->wptr_cpu_addr, ring->wptr);
- WDOORBELL64(ring->doorbell_index, ring->wptr);
+ if (ring->is_mes_queue) {
+ wptr_saved = (uint32_t *)(ring->mqd_ptr + mqd_size);
+ is_queue_unmap = (uint32_t *)(ring->mqd_ptr + mqd_size +
+ sizeof(uint32_t));
+ aggregated_db_index =
+ amdgpu_mes_get_aggregated_doorbell_index(adev,
+ ring->hw_prio);
+
+ wptr_tmp = ring->wptr & ring->buf_mask;
+ atomic64_set((atomic64_t *)ring->wptr_cpu_addr, wptr_tmp);
+ *wptr_saved = wptr_tmp;
+ /* assume doorbell always being used by mes mapped queue */
+ if (*is_queue_unmap) {
+ WDOORBELL64(aggregated_db_index, wptr_tmp);
+ WDOORBELL64(ring->doorbell_index, wptr_tmp);
+ } else {
+ WDOORBELL64(ring->doorbell_index, wptr_tmp);
+
+ if (*is_queue_unmap)
+ WDOORBELL64(aggregated_db_index, wptr_tmp);
+ }
} else {
- WREG32_SOC15(GC, 0, regCP_RB0_WPTR, lower_32_bits(ring->wptr));
- WREG32_SOC15(GC, 0, regCP_RB0_WPTR_HI, upper_32_bits(ring->wptr));
+ if (ring->use_doorbell) {
+ /* XXX check if swapping is necessary on BE */
+ atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
+ ring->wptr);
+ WDOORBELL64(ring->doorbell_index, ring->wptr);
+ } else {
+ WREG32_SOC15(GC, 0, regCP_RB0_WPTR,
+ lower_32_bits(ring->wptr));
+ WREG32_SOC15(GC, 0, regCP_RB0_WPTR_HI,
+ upper_32_bits(ring->wptr));
+ }
}
}
@@ -5329,13 +5360,42 @@ static u64 gfx_v11_0_ring_get_wptr_compute(struct amdgpu_ring *ring)
static void gfx_v11_0_ring_set_wptr_compute(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
+ uint32_t *wptr_saved;
+ uint32_t *is_queue_unmap;
+ uint64_t aggregated_db_index;
+ uint32_t mqd_size = adev->mqds[AMDGPU_HW_IP_COMPUTE].mqd_size;
+ uint64_t wptr_tmp;
- /* XXX check if swapping is necessary on BE */
- if (ring->use_doorbell) {
- atomic64_set((atomic64_t *)ring->wptr_cpu_addr, ring->wptr);
- WDOORBELL64(ring->doorbell_index, ring->wptr);
+ if (ring->is_mes_queue) {
+ wptr_saved = (uint32_t *)(ring->mqd_ptr + mqd_size);
+ is_queue_unmap = (uint32_t *)(ring->mqd_ptr + mqd_size +
+ sizeof(uint32_t));
+ aggregated_db_index =
+ amdgpu_mes_get_aggregated_doorbell_index(adev,
+ ring->hw_prio);
+
+ wptr_tmp = ring->wptr & ring->buf_mask;
+ atomic64_set((atomic64_t *)ring->wptr_cpu_addr, wptr_tmp);
+ *wptr_saved = wptr_tmp;
+ /* assume doorbell always used by mes mapped queue */
+ if (*is_queue_unmap) {
+ WDOORBELL64(aggregated_db_index, wptr_tmp);
+ WDOORBELL64(ring->doorbell_index, wptr_tmp);
+ } else {
+ WDOORBELL64(ring->doorbell_index, wptr_tmp);
+
+ if (*is_queue_unmap)
+ WDOORBELL64(aggregated_db_index, wptr_tmp);
+ }
} else {
- BUG(); /* only DOORBELL method supported on gfx11 now */
+ /* XXX check if swapping is necessary on BE */
+ if (ring->use_doorbell) {
+ atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
+ ring->wptr);
+ WDOORBELL64(ring->doorbell_index, ring->wptr);
+ } else {
+ BUG(); /* only DOORBELL method supported on gfx11 now */
+ }
}
}
--
2.35.1
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