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drm/amdgpu: Restrict extended wait to PSP v13.0.6

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[ Upstream commit 6fce23a4d8 ]

Only PSPv13.0.6 SOCs take a longer time to reach steady state. Other
PSPv13 based SOCs don't need extended wait. Also, reduce PSPv13.0.6 wait
time.

Cc: stable@vger.kernel.org
Fixes: fc59889071 ("drm/amdgpu: update retry times for psp vmbx wait")
Fixes: d8c1925ba8 ("drm/amdgpu: update retry times for psp BL wait")
Link: https://lore.kernel.org/amd-gfx/34dd4c66-f7bf-44aa-af8f-c82889dd652c@amd.com/
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lijo Lazar 2023-11-29 18:06:55 +05:30 committed by Greg Kroah-Hartman
parent 9f29fe9b61
commit 71a1ffe22d
1 changed files with 7 additions and 3 deletions
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10
drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
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@ -60,7 +60,7 @@ MODULE_FIRMWARE("amdgpu/psp_14_0_0_ta.bin");
#define GFX_CMD_USB_PD_USE_LFB 0x480
/* Retry times for vmbx ready wait */
#define PSP_VMBX_POLLING_LIMIT 20000
#define PSP_VMBX_POLLING_LIMIT 3000
/* VBIOS gfl defines */
#define MBOX_READY_MASK 0x80000000
@ -161,14 +161,18 @@ static int psp_v13_0_wait_for_vmbx_ready(struct psp_context *psp)
static int psp_v13_0_wait_for_bootloader(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
int retry_loop, ret;
int retry_loop, retry_cnt, ret;
retry_cnt =
(adev->ip_versions[MP0_HWIP][0] == IP_VERSION(13, 0, 6)) ?
PSP_VMBX_POLLING_LIMIT :
10;
/* Wait for bootloader to signify that it is ready having bit 31 of
* C2PMSG_35 set to 1. All other bits are expected to be cleared.
* If there is an error in processing command, bits[7:0] will be set.
* This is applicable for PSP v13.0.6 and newer.
*/
for (retry_loop = 0; retry_loop < PSP_VMBX_POLLING_LIMIT; retry_loop++) {
for (retry_loop = 0; retry_loop < retry_cnt; retry_loop++) {
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_35),
0x80000000, 0xffffffff, false);