From: Sunil Khatri <sunil.khatri@amd.com>
To: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>
Cc: amd-gfx@lists.freedesktop.org, Sunil Khatri <sunil.khatri@amd.com>
Subject: [PATCH v1 01/15] drm/amdgpu: add vcn_v5_0 ip dump support
Date: Tue, 6 Aug 2024 13:48:11 +0530 [thread overview]
Message-ID: <20240806081825.2422771-2-sunil.khatri@amd.com> (raw)
In-Reply-To: <20240806081825.2422771-1-sunil.khatri@amd.com>
Add support of vcn ip dump in the devcoredump
for vcn_v5_0.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c | 170 +++++++++++++++++++++++-
1 file changed, 169 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
index 68c97fcd539b..a4260774dace 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c
@@ -37,6 +37,134 @@
#include <drm/drm_drv.h>
+static const struct amdgpu_hwip_reg_entry vcn_reg_list_5_0[] = {
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_POWER_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE1_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_VCPU_CACHE_OFFSET0),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_VCPU_CACHE_OFFSET1),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_VCPU_CACHE_OFFSET2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_CONTEXT_ID),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_GPCOM_VCPU_DATA0),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_GPCOM_VCPU_DATA1),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_GPCOM_VCPU_CMD),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_NC1_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_NC1_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_NC0_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE_VMIDS_MULTI),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_NC_VMIDS_MULTI),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_HI),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_LO),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_HI2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_LO2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_HI3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_LO3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_HI4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_BASE_LO4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_RPTR),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_WPTR),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_RPTR2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_WPTR2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_RPTR3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_WPTR3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_RPTR4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_WPTR4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SOFT_RESET),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SOFT_RESET2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_CGC_GATE),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_CGC_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_CGC_CTRL),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_CGC_CTRL3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_GATE),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_CTRL),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_GATE2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE3),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_RB_SIZE4),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_STATUS2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SUVD_CGC_GATE2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_VCPU_CACHE_OFFSET2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_GPGPU_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_GPGPU_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CURR_LUMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CURR_LUMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CURR_CHROMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CURR_CHROMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_DBW_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_DBW_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CM_COLOC_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_CM_COLOC_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP0_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP0_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP1_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP1_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP2_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP2_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP3_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSP3_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD0_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD0_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD1_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD1_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD2_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD2_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD3_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD3_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD4_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_BSD4_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE2_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE3_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE3_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE4_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE4_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE5_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE5_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE6_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE6_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE7_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_VCPU_CACHE7_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_SCLR_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_SCLR_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_SCLR2_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_SCLR2_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_IMAGEPASTE_LUMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_IMAGEPASTE_LUMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_IMAGEPASTE_CHROMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_IMAGEPASTE_CHROMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_PRIVACY_LUMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_PRIVACY_LUMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_PRIVACY_CHROMA_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_MIF_PRIVACY_CHROMA_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_LMI_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_IPX_DLDO_CONFIG),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_IPX_DLDO_STATUS),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMA_CTL),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMA_DATA),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMA_MASK),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_PAUSE),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMI_VCPU_CACHE_64BIT_BAR_LOW),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_VCPU_CACHE_OFFSET0),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMI_VCPU_CACHE_VMID),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_CLK_EN_VCPU_REPORT),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMA_CTL),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_DPG_LMA_CTL2),
+ SOC15_REG_ENTRY_STR(VCN, 0, regUVD_SCRATCH1)
+};
+
static int amdgpu_ih_clientid_vcns[] = {
SOC15_IH_CLIENTID_VCN,
SOC15_IH_CLIENTID_VCN1
@@ -83,6 +211,8 @@ static int vcn_v5_0_0_sw_init(void *handle)
struct amdgpu_ring *ring;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int i, r;
+ uint32_t reg_count = ARRAY_SIZE(vcn_reg_list_5_0);
+ uint32_t *ptr;
r = amdgpu_vcn_sw_init(adev);
if (r)
@@ -137,6 +267,14 @@ static int vcn_v5_0_0_sw_init(void *handle)
if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
adev->vcn.pause_dpg_mode = vcn_v5_0_0_pause_dpg_mode;
+ /* Allocate memory for VCN IP Dump buffer */
+ ptr = kcalloc(adev->vcn.num_vcn_inst * reg_count, sizeof(uint32_t), GFP_KERNEL);
+ if (ptr == NULL) {
+ DRM_ERROR("Failed to allocate memory for VCN IP Dump\n");
+ adev->vcn.ip_dump = NULL;
+ } else {
+ adev->vcn.ip_dump = ptr;
+ }
return 0;
}
@@ -173,6 +311,8 @@ static int vcn_v5_0_0_sw_fini(void *handle)
r = amdgpu_vcn_sw_fini(adev);
+ kfree(adev->vcn.ip_dump);
+
return r;
}
@@ -1297,6 +1437,34 @@ static void vcn_v5_0_0_set_irq_funcs(struct amdgpu_device *adev)
}
}
+static void vcn_v5_0_dump_ip_state(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int i, j;
+ bool is_powered;
+ uint32_t inst_off;
+ uint32_t reg_count = ARRAY_SIZE(vcn_reg_list_5_0);
+
+ if (!adev->vcn.ip_dump)
+ return;
+
+ for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
+ if (adev->vcn.harvest_config & (1 << i))
+ continue;
+
+ inst_off = i * reg_count;
+ /* mmUVD_POWER_STATUS is always readable and is first element of the array */
+ adev->vcn.ip_dump[inst_off] = RREG32_SOC15(VCN, i, regUVD_POWER_STATUS);
+ is_powered = (adev->vcn.ip_dump[inst_off] &
+ UVD_POWER_STATUS__UVD_POWER_STATUS_MASK) != 1;
+
+ if (is_powered)
+ for (j = 1; j < reg_count; j++)
+ adev->vcn.ip_dump[inst_off + j] =
+ RREG32(SOC15_REG_ENTRY_OFFSET_INST(vcn_reg_list_5_0[j], i));
+ }
+}
+
static const struct amd_ip_funcs vcn_v5_0_0_ip_funcs = {
.name = "vcn_v5_0_0",
.early_init = vcn_v5_0_0_early_init,
@@ -1315,7 +1483,7 @@ static const struct amd_ip_funcs vcn_v5_0_0_ip_funcs = {
.post_soft_reset = NULL,
.set_clockgating_state = vcn_v5_0_0_set_clockgating_state,
.set_powergating_state = vcn_v5_0_0_set_powergating_state,
- .dump_ip_state = NULL,
+ .dump_ip_state = vcn_v5_0_dump_ip_state,
.print_ip_state = NULL,
};
--
2.34.1
next prev parent reply other threads:[~2024-08-06 8:18 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-06 8:18 [PATCH v1 00/15] VCN IP DUMP support for remaining IP's Sunil Khatri
2024-08-06 8:18 ` Sunil Khatri [this message]
2024-08-06 8:18 ` [PATCH v1 02/15] drm/amdgpu: add print support for vcn_v5_0 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 03/15] drm/amdgpu: add vcn_v4_0 ip dump support Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 04/15] drm/amdgpu: add print support for vcn_v4_0 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 05/15] drm/amdgpu: add vcn_v4_0_3 ip dump support Sunil Khatri
2024-08-06 21:28 ` Alex Deucher
2024-08-07 3:47 ` Khatri, Sunil
2024-08-07 3:51 ` Alex Deucher
2024-08-08 5:50 ` Lazar, Lijo
2024-08-08 7:06 ` Khatri, Sunil
2024-08-08 7:14 ` Lazar, Lijo
2024-08-08 7:29 ` Khatri, Sunil
2024-08-08 9:29 ` Sundararaju, Sathishkumar
2024-08-06 8:18 ` [PATCH v1 06/15] drm/amdgpu: add print support for vcn_v4_0_3 ip dump Sunil Khatri
2024-08-06 21:32 ` Alex Deucher
2024-08-07 3:37 ` Khatri, Sunil
2024-08-07 3:41 ` Alex Deucher
2024-08-06 8:18 ` [PATCH v1 07/15] drm/amdgpu: add vcn_v4_0_5 ip dump support Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 08/15] drm/amdgpu: add print support for vcn_v4_0_5 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 09/15] drm/amdgpu: add vcn_v1_0 ip dump support Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 10/15] drm/amdgpu: add print support for vcn_v1_0 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 11/15] drm/amdgpu: add vcn_v2_0 ip dump support Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 12/15] drm/amdgpu: add print support for vcn_v2_0 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 13/15] drm/amdgpu: add vcn_v2_5 ip dump support Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 14/15] drm/amdgpu: add print support for vcn_v2_5 ip dump Sunil Khatri
2024-08-06 8:18 ` [PATCH v1 15/15] drm/amdgpu: add vcn ip dump support for vcn_v2_6 Sunil Khatri
2024-08-07 4:00 ` Alex Deucher
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240806081825.2422771-2-sunil.khatri@amd.com \
--to=sunil.khatri@amd.com \
--cc=alexander.deucher@amd.com \
--cc=amd-gfx@lists.freedesktop.org \
--cc=christian.koenig@amd.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox