From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Mukul Joshi <mukul.joshi@amd.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Sasha Levin <sashal@kernel.org>,
christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com,
daniel@ffwll.ch, Hawking.Zhang@amd.com, tao.zhou1@amd.com,
le.ma@amd.com, lijo.lazar@amd.com, kent.russell@amd.com,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 6.2 36/37] drm/amdgpu: Enable IH retry CAM on GFX9
Date: Sun, 30 Apr 2023 22:59:44 -0400 [thread overview]
Message-ID: <20230501025945.3253774-36-sashal@kernel.org> (raw)
In-Reply-To: <20230501025945.3253774-1-sashal@kernel.org>
From: Mukul Joshi <mukul.joshi@amd.com>
[ Upstream commit 318e431b306e966d2ee99e900a11bdc9a701ee83 ]
This patch enables the IH retry CAM on GFX9 series cards. This
retry filter is used to prevent sending lots of retry interrupts
in a short span of time and overflowing the IH ring buffer. This
will also help reduce CPU interrupt workload.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 2 +
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 51 +++++++++++------
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 2 +-
drivers/gpu/drm/amd/amdgpu/vega20_ih.c | 55 +++++++++----------
drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 10 +++-
.../asic_reg/oss/osssys_4_2_0_offset.h | 6 ++
.../asic_reg/oss/osssys_4_2_0_sh_mask.h | 11 ++++
7 files changed, 88 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
index e9f2c11ea416c..be243adf3e657 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
@@ -98,6 +98,8 @@ struct amdgpu_irq {
struct irq_domain *domain; /* GPU irq controller domain */
unsigned virq[AMDGPU_MAX_IRQ_SRC_ID];
uint32_t srbm_soft_reset;
+ u32 retry_cam_doorbell_index;
+ bool retry_cam_enabled;
};
void amdgpu_irq_disable_all(struct amdgpu_device *adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 08d6cf79fb15d..e5ab84f3e0725 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -537,32 +537,49 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
const char *mmhub_cid;
const char *hub_name;
u64 addr;
+ uint32_t cam_index = 0;
+ int ret;
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
if (retry_fault) {
- /* Returning 1 here also prevents sending the IV to the KFD */
+ if (adev->irq.retry_cam_enabled) {
+ /* Delegate it to a different ring if the hardware hasn't
+ * already done it.
+ */
+ if (entry->ih == &adev->irq.ih) {
+ amdgpu_irq_delegate(adev, entry, 8);
+ return 1;
+ }
+
+ cam_index = entry->src_data[2] & 0x3ff;
- /* Process it onyl if it's the first fault for this address */
- if (entry->ih != &adev->irq.ih_soft &&
- amdgpu_gmc_filter_faults(adev, entry->ih, addr, entry->pasid,
+ ret = amdgpu_vm_handle_fault(adev, entry->pasid, addr, write_fault);
+ WDOORBELL32(adev->irq.retry_cam_doorbell_index, cam_index);
+ if (ret)
+ return 1;
+ } else {
+ /* Process it onyl if it's the first fault for this address */
+ if (entry->ih != &adev->irq.ih_soft &&
+ amdgpu_gmc_filter_faults(adev, entry->ih, addr, entry->pasid,
entry->timestamp))
- return 1;
+ return 1;
- /* Delegate it to a different ring if the hardware hasn't
- * already done it.
- */
- if (entry->ih == &adev->irq.ih) {
- amdgpu_irq_delegate(adev, entry, 8);
- return 1;
- }
+ /* Delegate it to a different ring if the hardware hasn't
+ * already done it.
+ */
+ if (entry->ih == &adev->irq.ih) {
+ amdgpu_irq_delegate(adev, entry, 8);
+ return 1;
+ }
- /* Try to handle the recoverable page faults by filling page
- * tables
- */
- if (amdgpu_vm_handle_fault(adev, entry->pasid, addr, write_fault))
- return 1;
+ /* Try to handle the recoverable page faults by filling page
+ * tables
+ */
+ if (amdgpu_vm_handle_fault(adev, entry->pasid, addr, write_fault))
+ return 1;
+ }
}
if (!printk_ratelimit())
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
index 19455a7259391..685abf57ffddc 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
@@ -238,7 +238,7 @@ static void nbio_v7_4_ih_doorbell_range(struct amdgpu_device *adev,
if (use_doorbell) {
ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index);
- ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 4);
+ ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 8);
} else
ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
index 1706081d054dd..6a8fb1fb48a3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
@@ -38,6 +38,11 @@
#define mmIH_CHICKEN_ALDEBARAN 0x18d
#define mmIH_CHICKEN_ALDEBARAN_BASE_IDX 0
+#define mmIH_RETRY_INT_CAM_CNTL_ALDEBARAN 0x00ea
+#define mmIH_RETRY_INT_CAM_CNTL_ALDEBARAN_BASE_IDX 0
+#define IH_RETRY_INT_CAM_CNTL_ALDEBARAN__ENABLE__SHIFT 0x10
+#define IH_RETRY_INT_CAM_CNTL_ALDEBARAN__ENABLE_MASK 0x00010000L
+
static void vega20_ih_set_interrupt_funcs(struct amdgpu_device *adev);
/**
@@ -251,36 +256,14 @@ static int vega20_ih_enable_ring(struct amdgpu_device *adev,
return 0;
}
-/**
- * vega20_ih_reroute_ih - reroute VMC/UTCL2 ih to an ih ring
- *
- * @adev: amdgpu_device pointer
- *
- * Reroute VMC and UMC interrupts on primary ih ring to
- * ih ring 1 so they won't lose when bunches of page faults
- * interrupts overwhelms the interrupt handler(VEGA20)
- */
-static void vega20_ih_reroute_ih(struct amdgpu_device *adev)
+static uint32_t vega20_setup_retry_doorbell(u32 doorbell_index)
{
- uint32_t tmp;
+ u32 val = 0;
- /* vega20 ih reroute will go through psp this
- * function is used for newer asics starting arcturus
- */
- if (adev->ip_versions[OSSSYS_HWIP][0] >= IP_VERSION(4, 2, 1)) {
- /* Reroute to IH ring 1 for VMC */
- WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_INDEX, 0x12);
- tmp = RREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA);
- tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, CLIENT_TYPE, 1);
- tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
- WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA, tmp);
-
- /* Reroute IH ring 1 for UTCL2 */
- WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_INDEX, 0x1B);
- tmp = RREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA);
- tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
- WREG32_SOC15(OSSSYS, 0, mmIH_CLIENT_CFG_DATA, tmp);
- }
+ val = REG_SET_FIELD(val, IH_DOORBELL_RPTR, OFFSET, doorbell_index);
+ val = REG_SET_FIELD(val, IH_DOORBELL_RPTR, ENABLE, 1);
+
+ return val;
}
/**
@@ -332,8 +315,6 @@ static int vega20_ih_irq_init(struct amdgpu_device *adev)
for (i = 0; i < ARRAY_SIZE(ih); i++) {
if (ih[i]->ring_size) {
- if (i == 1)
- vega20_ih_reroute_ih(adev);
ret = vega20_ih_enable_ring(adev, ih[i]);
if (ret)
return ret;
@@ -346,6 +327,20 @@ static int vega20_ih_irq_init(struct amdgpu_device *adev)
pci_set_master(adev->pdev);
+ /* Allocate the doorbell for IH Retry CAM */
+ adev->irq.retry_cam_doorbell_index = (adev->doorbell_index.ih + 3) << 1;
+ WREG32_SOC15(OSSSYS, 0, mmIH_DOORBELL_RETRY_CAM,
+ vega20_setup_retry_doorbell(adev->irq.retry_cam_doorbell_index));
+
+ /* Enable IH Retry CAM */
+ if (adev->ip_versions[OSSSYS_HWIP][0] == IP_VERSION(4, 4, 0))
+ WREG32_FIELD15(OSSSYS, 0, IH_RETRY_INT_CAM_CNTL_ALDEBARAN,
+ ENABLE, 1);
+ else
+ WREG32_FIELD15(OSSSYS, 0, IH_RETRY_INT_CAM_CNTL, ENABLE, 1);
+
+ adev->irq.retry_cam_enabled = true;
+
/* enable interrupts */
ret = vega20_ih_toggle_interrupts(adev, true);
if (ret)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index b94d2c1422ad8..129ef44f41e9d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -2171,7 +2171,15 @@ static void svm_range_drain_retry_fault(struct svm_range_list *svms)
pr_debug("drain retry fault gpu %d svms %p\n", i, svms);
amdgpu_ih_wait_on_checkpoint_process_ts(pdd->dev->adev,
- &pdd->dev->adev->irq.ih1);
+ pdd->dev->adev->irq.retry_cam_enabled ?
+ &pdd->dev->adev->irq.ih :
+ &pdd->dev->adev->irq.ih1);
+
+ if (pdd->dev->adev->irq.retry_cam_enabled)
+ amdgpu_ih_wait_on_checkpoint_process_ts(pdd->dev->adev,
+ &pdd->dev->adev->irq.ih_soft);
+
+
pr_debug("drain retry fault gpu %d svms 0x%p done\n", i, svms);
}
if (atomic_cmpxchg(&svms->drain_pagefaults, drain, 0) != drain)
diff --git a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_offset.h b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_offset.h
index bd129266ebfd1..a84a7cfaf71e5 100644
--- a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_offset.h
+++ b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_offset.h
@@ -135,6 +135,8 @@
#define mmIH_RB_WPTR_ADDR_LO_BASE_IDX 0
#define mmIH_DOORBELL_RPTR 0x0087
#define mmIH_DOORBELL_RPTR_BASE_IDX 0
+#define mmIH_DOORBELL_RETRY_CAM 0x0088
+#define mmIH_DOORBELL_RETRY_CAM_BASE_IDX 0
#define mmIH_RB_CNTL_RING1 0x008c
#define mmIH_RB_CNTL_RING1_BASE_IDX 0
#define mmIH_RB_BASE_RING1 0x008d
@@ -159,6 +161,8 @@
#define mmIH_RB_WPTR_RING2_BASE_IDX 0
#define mmIH_DOORBELL_RPTR_RING2 0x009f
#define mmIH_DOORBELL_RPTR_RING2_BASE_IDX 0
+#define mmIH_RETRY_CAM_ACK 0x00a4
+#define mmIH_RETRY_CAM_ACK_BASE_IDX 0
#define mmIH_VERSION 0x00a5
#define mmIH_VERSION_BASE_IDX 0
#define mmIH_CNTL 0x00c0
@@ -235,6 +239,8 @@
#define mmIH_MMHUB_ERROR_BASE_IDX 0
#define mmIH_MEM_POWER_CTRL 0x00e8
#define mmIH_MEM_POWER_CTRL_BASE_IDX 0
+#define mmIH_RETRY_INT_CAM_CNTL 0x00e9
+#define mmIH_RETRY_INT_CAM_CNTL_BASE_IDX 0
#define mmIH_REGISTER_LAST_PART2 0x00ff
#define mmIH_REGISTER_LAST_PART2_BASE_IDX 0
#define mmSEM_CLK_CTRL 0x0100
diff --git a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_sh_mask.h b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_sh_mask.h
index 3ea83ea9ce3a4..75c04fc275a0c 100644
--- a/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_sh_mask.h
+++ b/drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_2_0_sh_mask.h
@@ -349,6 +349,17 @@
#define IH_DOORBELL_RPTR_RING2__ENABLE__SHIFT 0x1c
#define IH_DOORBELL_RPTR_RING2__OFFSET_MASK 0x03FFFFFFL
#define IH_DOORBELL_RPTR_RING2__ENABLE_MASK 0x10000000L
+//IH_RETRY_INT_CAM_CNTL
+#define IH_RETRY_INT_CAM_CNTL__CAM_SIZE__SHIFT 0x0
+#define IH_RETRY_INT_CAM_CNTL__BACK_PRESSURE_SKID_VALUE__SHIFT 0x8
+#define IH_RETRY_INT_CAM_CNTL__ENABLE__SHIFT 0x10
+#define IH_RETRY_INT_CAM_CNTL__BACK_PRESSURE_ENABLE__SHIFT 0x11
+#define IH_RETRY_INT_CAM_CNTL__PER_VF_ENTRY_SIZE__SHIFT 0x14
+#define IH_RETRY_INT_CAM_CNTL__CAM_SIZE_MASK 0x0000001FL
+#define IH_RETRY_INT_CAM_CNTL__BACK_PRESSURE_SKID_VALUE_MASK 0x00003F00L
+#define IH_RETRY_INT_CAM_CNTL__ENABLE_MASK 0x00010000L
+#define IH_RETRY_INT_CAM_CNTL__BACK_PRESSURE_ENABLE_MASK 0x00020000L
+#define IH_RETRY_INT_CAM_CNTL__PER_VF_ENTRY_SIZE_MASK 0x00300000L
//IH_VERSION
#define IH_VERSION__MINVER__SHIFT 0x0
#define IH_VERSION__MAJVER__SHIFT 0x8
--
2.39.2
next prev parent reply other threads:[~2023-05-01 3:10 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 2:59 [PATCH AUTOSEL 6.2 01/37] drm/displayid: add displayid_get_header() and check bounds better Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 02/37] drm/amd/display: populate subvp cmd info only for the top pipe Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 03/37] drm/amd/display: Correct DML calculation to align HW formula Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 04/37] drm/amd/display: enable DPG when disabling plane for phantom pipe Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 05/37] platform/x86: x86-android-tablets: Add Acer Iconia One 7 B1-750 data Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 06/37] drm/amd/display: Enable HostVM based on rIOMMU active Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 07/37] drm/amd/display: Use DC_LOG_DC in the trasform pixel function Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 08/37] regmap: cache: Return error in cache sync operations for REGCACHE_NONE Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 09/37] remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 10/37] arm64: dts: qcom: msm8996: Add missing DWC3 quirks Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 11/37] accel/habanalabs: postpone mem_mgr IDR destruction to hpriv_release() Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 12/37] media: imx-jpeg: Bounds check sizeimage access Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 13/37] media: cx23885: Fix a null-ptr-deref bug in buffer_prepare() and buffer_finish() Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 14/37] media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 15/37] media: pvrusb2: VIDEO_PVRUSB2 depends on DVB_CORE to use dvb_* symbols Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 16/37] ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup() Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 17/37] drm/rockchip: dw_hdmi: cleanup drm encoder during unbind Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 18/37] memstick: r592: Fix UAF bug in r592_remove due to race condition Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 19/37] arm64: dts: imx8mq-librem5: Remove dis_u3_susphy_quirk from usb_dwc3_0 Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 20/37] firmware: arm_sdei: Fix sleep from invalid context BUG Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 21/37] ACPI: EC: Fix oops when removing custom query handlers Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 22/37] drm/amd/display: fixed dcn30+ underflow issue Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 23/37] remoteproc: stm32_rproc: Add mutex protection for workqueue Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 24/37] drm/tegra: Avoid potential 32-bit integer overflow Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 25/37] drm/msm/dp: Clean up handling of DP AUX interrupts Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 26/37] ACPICA: Avoid undefined behavior: applying zero offset to null pointer Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 27/37] ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 28/37] arm64: dts: qcom: sdm845-polaris: Drop inexistent properties Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 29/37] irqchip/gicv3: Workaround for NVIDIA erratum T241-FABRIC-4 Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 30/37] media: cros-ec-cec: Don't exit early in .remove() callback Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 31/37] ACPI: video: Remove desktops without backlight DMI quirks Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 32/37] drm/amd/display: Correct DML calculation to follow HW SPEC Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 33/37] drm/amd: Fix an out of bounds error in BIOS parser Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 34/37] drm/amdgpu: Fix sdma v4 sw fini error Sasha Levin
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 35/37] media: Prefer designated initializers over memset for subdev pad ops Sasha Levin
2023-05-01 2:59 ` Sasha Levin [this message]
2023-05-01 2:59 ` [PATCH AUTOSEL 6.2 37/37] media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup Sasha Levin
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