[PATCH 3/4] drm/amdgpu: Introduce new SETUP_TMR interface

[Kasiviswanathan, Harish]

[AMD Official Use Only - Internal Distribution Only]

Minor typo. See below. With that fixed Reviewed-By: Harish Kasiviswanathan <Harish.Kasiviswanathan at amd.com>


-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Oak Zeng
Sent: Thursday, April 1, 2021 3:37 PM
To: amd-gfx at lists.freedesktop.org
Cc: Kuehling, Felix <Felix.Kuehling at amd.com>; Lazar, Lijo <Lijo.Lazar at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>; Zeng, Oak <Oak.Zeng at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>
Subject: [PATCH 3/4] drm/amdgpu: Introduce new SETUP_TMR interface

This new interface passes both virtual and physical address to PSP. It is backword compatible with old interface.

<backward>

v2: use a function to simply tmr physical address calc (Lijo)

<simplify>

Signed-off-by: Oak Zeng <Oak.Zeng at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 12 +++++++++---  drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h | 11 ++++++++++-
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 9e769cf..123ab31 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -328,8 +328,12 @@ psp_cmd_submit_buf(struct psp_context *psp,
 
 static void psp_prep_tmr_cmd_buf(struct psp_context *psp,
 				 struct psp_gfx_cmd_resp *cmd,
-				 uint64_t tmr_mc, uint32_t size)
+				 uint64_t tmr_mc, struct amdgpu_bo *tmr_bo)
 {
+	struct amdgpu_device *adev = psp->adev;
+	uint32_t size = amdgpu_bo_size(tmr_bo);
+	uint64_t tmr_pa = amdgpu_gmc_vram_pa(adev, tmr_bo);
+
 	if (amdgpu_sriov_vf(psp->adev))
 		cmd->cmd_id = GFX_CMD_ID_SETUP_VMR;
 	else
@@ -337,6 +341,9 @@ static void psp_prep_tmr_cmd_buf(struct psp_context *psp,
 	cmd->cmd.cmd_setup_tmr.buf_phy_addr_lo = lower_32_bits(tmr_mc);
 	cmd->cmd.cmd_setup_tmr.buf_phy_addr_hi = upper_32_bits(tmr_mc);
 	cmd->cmd.cmd_setup_tmr.buf_size = size;
+	cmd->cmd.cmd_setup_tmr.bitfield.virt_phy_addr = 1;
+	cmd->cmd.cmd_setup_tmr.system_phy_addr_lo = lower_32_bits(tmr_pa);
+	cmd->cmd.cmd_setup_tmr.system_phy_addr_hi = upper_32_bits(tmr_pa);
 }
 
 static void psp_prep_load_toc_cmd_buf(struct psp_gfx_cmd_resp *cmd, @@ -466,8 +473,7 @@ static int psp_tmr_load(struct psp_context *psp)
 	if (!cmd)
 		return -ENOMEM;
 
-	psp_prep_tmr_cmd_buf(psp, cmd, psp->tmr_mc_addr,
-			     amdgpu_bo_size(psp->tmr_bo));
+	psp_prep_tmr_cmd_buf(psp, cmd, psp->tmr_mc_addr, psp->tmr_bo);
 	DRM_INFO("reserve 0x%lx from 0x%llx for PSP TMR\n",
 		 amdgpu_bo_size(psp->tmr_bo), psp->tmr_mc_addr);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h b/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
index dd4d65f..96064c3 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
+++ b/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
@@ -185,10 +185,19 @@ struct psp_gfx_cmd_setup_tmr
     uint32_t        buf_phy_addr_lo;       /* bits [31:0] of GPU Virtual address of TMR buffer (must be 4 KB aligned) */
     uint32_t        buf_phy_addr_hi;       /* bits [63:32] of GPU Virtual address of TMR buffer */
     uint32_t        buf_size;              /* buffer size in bytes (must be multiple of 4 KB) */
+    union {
+	struct {
+		uint32_t	sriov_enabled:1; /* whether the device runs under SR-IOV*/
+		uint32_t	virt_phy_addr:1; /* driver passes both virtual and physical address to PSP*/
+		uint32_t	reserved:30;
+	} bitfield;
+	uint32_t        tmr_flags;
+    };
+    uint32_t        system_phy_addr_lo;        /* bits [31:0] of system physical address of TMR buffer (must be 4 KB aligned) */
+    uint32_t        system_phy_addr_hi;        /* bits [63:32] of system physical address of TMR buffer */
 
 };
 
-
 /* FW types for GFX_CMD_ID_LOAD_IP_FW command. Limit 31. */  enum psp_gfx_fw_type {
 	GFX_FW_TYPE_NONE        = 0,    /* */
--
2.7.4

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