[PATCH v6 15/45] drm/amd: Load GFX9 microcode during early_init

Mario Limonciello
2023-01-05T03:45:27Z

If GFX9 microcode is required but not available during early init, the
firmware framebuffer will have already been released and the screen will
freeze.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 58 +++++----------------------
1 file changed, 9 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ef2dbebbc90c..0dba690cf7dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1245,7 +1245,7 @@ static void gfx_v9_0_check_if_need_gfxoff(struct amdgpu_device *adev)
}

static int gfx_v9_0_init_cp_gfx_microcode(struct amdgpu_device *adev,
- const char *chip_name)
+ char *chip_name)
{
char fw_name[30];
int err;
@@ -1278,7 +1278,7 @@ static int gfx_v9_0_init_cp_gfx_microcode(struct amdgpu_device *adev,
}

static int gfx_v9_0_init_rlc_microcode(struct amdgpu_device *adev,
- const char *chip_name)
+ char *chip_name)
{
char fw_name[30];
int err;
@@ -1333,7 +1333,7 @@ static bool gfx_v9_0_load_mec2_fw_bin_support(struct amdgpu_device *adev)
}

static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,
- const char *chip_name)
+ char *chip_name)
{
char fw_name[30];
int err;
@@ -1379,58 +1379,24 @@ static int gfx_v9_0_init_cp_compute_microcode(struct amdgpu_device *adev,

static int gfx_v9_0_init_microcode(struct amdgpu_device *adev)
{
- const char *chip_name;
+ char ucode_prefix[30];
int r;

DRM_DEBUG("\n");
-
- switch (adev->ip_versions[GC_HWIP][0]) {
- case IP_VERSION(9, 0, 1):
- chip_name = "vega10";
- break;
- case IP_VERSION(9, 2, 1):
- chip_name = "vega12";
- break;
- case IP_VERSION(9, 4, 0):
- chip_name = "vega20";
- break;
- case IP_VERSION(9, 2, 2):
- case IP_VERSION(9, 1, 0):
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
- chip_name = "raven2";
- else if (adev->apu_flags & AMD_APU_IS_PICASSO)
- chip_name = "picasso";
- else
- chip_name = "raven";
- break;
- case IP_VERSION(9, 4, 1):
- chip_name = "arcturus";
- break;
- case IP_VERSION(9, 3, 0):
- if (adev->apu_flags & AMD_APU_IS_RENOIR)
- chip_name = "renoir";
- else
- chip_name = "green_sardine";
- break;
- case IP_VERSION(9, 4, 2):
- chip_name = "aldebaran";
- break;
- default:
- BUG();
- }
+ amdgpu_ucode_ip_version_decode(adev, GC_HWIP, ucode_prefix, sizeof(ucode_prefix));

/* No CPG in Arcturus */
if (adev->gfx.num_gfx_rings) {
- r = gfx_v9_0_init_cp_gfx_microcode(adev, chip_name);
+ r = gfx_v9_0_init_cp_gfx_microcode(adev, ucode_prefix);
if (r)
return r;
}

- r = gfx_v9_0_init_rlc_microcode(adev, chip_name);
+ r = gfx_v9_0_init_rlc_microcode(adev, ucode_prefix);
if (r)
return r;

- r = gfx_v9_0_init_cp_compute_microcode(adev, chip_name);
+ r = gfx_v9_0_init_cp_compute_microcode(adev, ucode_prefix);
if (r)
return r;

@@ -2118,12 +2084,6 @@ static int gfx_v9_0_sw_init(void *handle)

adev->gfx.gfx_current_status = AMDGPU_GFX_NORMAL_MODE;

- r = gfx_v9_0_init_microcode(adev);
- if (r) {
- DRM_ERROR("Failed to load gfx firmware!\n");
- return r;
- }
-
if (adev->gfx.rlc.funcs) {
if (adev->gfx.rlc.funcs->init) {
r = adev->gfx.rlc.funcs->init(adev);
@@ -4565,7 +4525,7 @@ static int gfx_v9_0_early_init(void *handle)
/* init rlcg reg access ctrl */
gfx_v9_0_init_rlcg_reg_access_ctrl(adev);

- return 0;
+ return gfx_v9_0_init_microcode(adev);
}

static int gfx_v9_0_ecc_late_init(void *handle)
--
2.34.1