[PATCH 1/7] Revert "drm/amdgpu: Use generic hdp flush function"
Alex Deucher
alexander.deucher at amd.com
Mon May 5 13:04:53 UTC 2025
This reverts commit 18a878fd8aef0ec21648a3782f55a79790cd4073.
Revert this temporarily to make it easier to fix a regression
in the HDP handling.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.c | 21 ---------------------
drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h | 2 --
drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 13 ++++++++++++-
drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c | 13 ++++++++++++-
drivers/gpu/drm/amd/amdgpu/hdp_v6_0.c | 13 ++++++++++++-
drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c | 13 ++++++++++++-
6 files changed, 48 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.c
index 7fd8f09c28e66..b6cf801939aa5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.c
@@ -22,7 +22,6 @@
*/
#include "amdgpu.h"
#include "amdgpu_ras.h"
-#include <uapi/linux/kfd_ioctl.h>
int amdgpu_hdp_ras_sw_init(struct amdgpu_device *adev)
{
@@ -47,23 +46,3 @@ int amdgpu_hdp_ras_sw_init(struct amdgpu_device *adev)
/* hdp ras follows amdgpu_ras_block_late_init_default for late init */
return 0;
}
-
-void amdgpu_hdp_generic_flush(struct amdgpu_device *adev,
- struct amdgpu_ring *ring)
-{
- if (!ring || !ring->funcs->emit_wreg) {
- WREG32((adev->rmmio_remap.reg_offset +
- KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >>
- 2,
- 0);
- RREG32((adev->rmmio_remap.reg_offset +
- KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >>
- 2);
- } else {
- amdgpu_ring_emit_wreg(ring,
- (adev->rmmio_remap.reg_offset +
- KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >>
- 2,
- 0);
- }
-}
\ No newline at end of file
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h
index 4cfd932b7e91e..7b8a6152dc8d9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h
@@ -44,6 +44,4 @@ struct amdgpu_hdp {
};
int amdgpu_hdp_ras_sw_init(struct amdgpu_device *adev);
-void amdgpu_hdp_generic_flush(struct amdgpu_device *adev,
- struct amdgpu_ring *ring);
#endif /* __AMDGPU_HDP_H__ */
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
index e6c0d86d34865..f1dc13b3ab38e 100644
--- a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c
@@ -36,6 +36,17 @@
#define HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK 0x00020000L
#define mmHDP_MEM_POWER_CTRL_BASE_IDX 0
+static void hdp_v4_0_flush_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ if (!ring || !ring->funcs->emit_wreg) {
+ WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ RREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2);
+ } else {
+ amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ }
+}
+
static void hdp_v4_0_invalidate_hdp(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
@@ -169,7 +180,7 @@ struct amdgpu_hdp_ras hdp_v4_0_ras = {
};
const struct amdgpu_hdp_funcs hdp_v4_0_funcs = {
- .flush_hdp = amdgpu_hdp_generic_flush,
+ .flush_hdp = hdp_v4_0_flush_hdp,
.invalidate_hdp = hdp_v4_0_invalidate_hdp,
.update_clock_gating = hdp_v4_0_update_clock_gating,
.get_clock_gating_state = hdp_v4_0_get_clockgating_state,
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c
index 8bc001dc9f631..43195c0797480 100644
--- a/drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v5_0.c
@@ -27,6 +27,17 @@
#include "hdp/hdp_5_0_0_sh_mask.h"
#include <uapi/linux/kfd_ioctl.h>
+static void hdp_v5_0_flush_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ if (!ring || !ring->funcs->emit_wreg) {
+ WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ RREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2);
+ } else {
+ amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ }
+}
+
static void hdp_v5_0_invalidate_hdp(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
@@ -206,7 +217,7 @@ static void hdp_v5_0_init_registers(struct amdgpu_device *adev)
}
const struct amdgpu_hdp_funcs hdp_v5_0_funcs = {
- .flush_hdp = amdgpu_hdp_generic_flush,
+ .flush_hdp = hdp_v5_0_flush_hdp,
.invalidate_hdp = hdp_v5_0_invalidate_hdp,
.update_clock_gating = hdp_v5_0_update_clock_gating,
.get_clock_gating_state = hdp_v5_0_get_clockgating_state,
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v6_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v6_0.c
index ec20daf4272c5..a88d25a06c29b 100644
--- a/drivers/gpu/drm/amd/amdgpu/hdp_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v6_0.c
@@ -30,6 +30,17 @@
#define regHDP_CLK_CNTL_V6_1 0xd5
#define regHDP_CLK_CNTL_V6_1_BASE_IDX 0
+static void hdp_v6_0_flush_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ if (!ring || !ring->funcs->emit_wreg) {
+ WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ RREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2);
+ } else {
+ amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ }
+}
+
static void hdp_v6_0_update_clock_gating(struct amdgpu_device *adev,
bool enable)
{
@@ -138,7 +149,7 @@ static void hdp_v6_0_get_clockgating_state(struct amdgpu_device *adev,
}
const struct amdgpu_hdp_funcs hdp_v6_0_funcs = {
- .flush_hdp = amdgpu_hdp_generic_flush,
+ .flush_hdp = hdp_v6_0_flush_hdp,
.update_clock_gating = hdp_v6_0_update_clock_gating,
.get_clock_gating_state = hdp_v6_0_get_clockgating_state,
};
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
index ed1debc035073..49f7eb4fbd117 100644
--- a/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
@@ -27,6 +27,17 @@
#include "hdp/hdp_7_0_0_sh_mask.h"
#include <uapi/linux/kfd_ioctl.h>
+static void hdp_v7_0_flush_hdp(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring)
+{
+ if (!ring || !ring->funcs->emit_wreg) {
+ WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ RREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2);
+ } else {
+ amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
+ }
+}
+
static void hdp_v7_0_update_clock_gating(struct amdgpu_device *adev,
bool enable)
{
@@ -126,7 +137,7 @@ static void hdp_v7_0_get_clockgating_state(struct amdgpu_device *adev,
}
const struct amdgpu_hdp_funcs hdp_v7_0_funcs = {
- .flush_hdp = amdgpu_hdp_generic_flush,
+ .flush_hdp = hdp_v7_0_flush_hdp,
.update_clock_gating = hdp_v7_0_update_clock_gating,
.get_clock_gating_state = hdp_v7_0_get_clockgating_state,
};
--
2.49.0
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