[PATCH] drm/amd/amdgpu: add IH cg support on soc15 project
Wang, Kevin(Yang)
Kevin1.Wang at amd.com
Thu Sep 26 08:54:04 UTC 2019
Reviewed-by: Kevin Wang <kevin1.wang at amd.com>
Best Regards,
Kevin
________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Kenneth Feng <kenneth.feng at amd.com>
Sent: Thursday, September 26, 2019 4:47 PM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Feng, Kenneth <Kenneth.Feng at amd.com>
Subject: [PATCH] drm/amd/amdgpu: add IH cg support on soc15 project
enable/disable IH clock gating on soc15 projects.
Signed-off-by: Kenneth Feng <kenneth.feng at amd.com>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 3 +-
drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 39 ++++++++++++++++++++++
.../amd/include/asic_reg/oss/osssys_4_0_sh_mask.h | 4 +++
3 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 58818761..e40410e 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1166,7 +1166,8 @@ static int soc15_common_early_init(void *handle)
AMD_CG_SUPPORT_SDMA_MGCG |
AMD_CG_SUPPORT_SDMA_LS |
AMD_CG_SUPPORT_MC_MGCG |
- AMD_CG_SUPPORT_MC_LS;
+ AMD_CG_SUPPORT_MC_LS |
+ AMD_CG_SUPPORT_IH_CG;
adev->pg_flags = 0;
adev->external_rev_id = adev->rev_id + 0x32;
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index 14e0b04..5cb7e23 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -675,10 +675,49 @@ static int vega10_ih_soft_reset(void *handle)
return 0;
}
+static void vega10_ih_update_clockgating_state(struct amdgpu_device *adev,
+ bool enable)
+{
+ uint32_t data, def, field_val;
+
+ if (adev->cg_flags & AMD_CG_SUPPORT_IH_CG) {
+ def = data = RREG32_SOC15(OSSSYS, 0, mmIH_CLK_CTRL);
+ field_val = enable ? 0 : 1;
+ /**
+ * Vega10 does not have IH_RETRY_INT_CAM_MEM_CLK_SOFT_OVERRIDE
+ * and IH_BUFFER_MEM_CLK_SOFT_OVERRIDE field.
+ */
+ if (adev->asic_type > CHIP_VEGA10) {
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ IH_RETRY_INT_CAM_MEM_CLK_SOFT_OVERRIDE, field_val);
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ IH_BUFFER_MEM_CLK_SOFT_OVERRIDE, field_val);
+ }
+
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ DBUS_MUX_CLK_SOFT_OVERRIDE, field_val);
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ OSSSYS_SHARE_CLK_SOFT_OVERRIDE, field_val);
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ LIMIT_SMN_CLK_SOFT_OVERRIDE, field_val);
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ DYN_CLK_SOFT_OVERRIDE, field_val);
+ data = REG_SET_FIELD(data, IH_CLK_CTRL,
+ REG_CLK_SOFT_OVERRIDE, field_val);
+ if (def != data)
+ WREG32_SOC15(OSSSYS, 0, mmIH_CLK_CTRL, data);
+ }
+}
+
static int vega10_ih_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ vega10_ih_update_clockgating_state(adev,
+ state == AMD_CG_STATE_GATE ? true : false);
return 0;
+
}
static int vega10_ih_set_powergating_state(void *handle,
diff --git a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_sh_mask.h b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_sh_mask.h
index dc9895a..096d878 100644
--- a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_sh_mask.h
+++ b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_sh_mask.h
@@ -588,11 +588,15 @@
#define IH_STORM_CLIENT_LIST_CNTL__CLIENT30_IS_STORM_CLIENT_MASK 0x40000000L
#define IH_STORM_CLIENT_LIST_CNTL__CLIENT31_IS_STORM_CLIENT_MASK 0x80000000L
//IH_CLK_CTRL
+#define IH_CLK_CTRL__IH_RETRY_INT_CAM_MEM_CLK_SOFT_OVERRIDE__SHIFT 0x19
+#define IH_CLK_CTRL__IH_BUFFER_MEM_CLK_SOFT_OVERRIDE__SHIFT 0x1a
#define IH_CLK_CTRL__DBUS_MUX_CLK_SOFT_OVERRIDE__SHIFT 0x1b
#define IH_CLK_CTRL__OSSSYS_SHARE_CLK_SOFT_OVERRIDE__SHIFT 0x1c
#define IH_CLK_CTRL__LIMIT_SMN_CLK_SOFT_OVERRIDE__SHIFT 0x1d
#define IH_CLK_CTRL__DYN_CLK_SOFT_OVERRIDE__SHIFT 0x1e
#define IH_CLK_CTRL__REG_CLK_SOFT_OVERRIDE__SHIFT 0x1f
+#define IH_CLK_CTRL__IH_RETRY_INT_CAM_MEM_CLK_SOFT_OVERRIDE_MASK 0x02000000L
+#define IH_CLK_CTRL__IH_BUFFER_MEM_CLK_SOFT_OVERRIDE_MASK 0x04000000L
#define IH_CLK_CTRL__DBUS_MUX_CLK_SOFT_OVERRIDE_MASK 0x08000000L
#define IH_CLK_CTRL__OSSSYS_SHARE_CLK_SOFT_OVERRIDE_MASK 0x10000000L
#define IH_CLK_CTRL__LIMIT_SMN_CLK_SOFT_OVERRIDE_MASK 0x20000000L
--
2.7.4
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