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habanalabs/gaudi: read div_sel value from firmware

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Even when running with unsecured f/w, we should read the PLL div_sel
value from the f/w as this register is always privileged.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ohad Sharabi 2022-07-24 10:23:05 +03:00 committed by Oded Gabbay
parent d6501ecfb6
commit 68c82ba9a9
1 changed files with 3 additions and 2 deletions
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5
drivers/misc/habanalabs/gaudi/gaudi.c
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@ -899,12 +899,13 @@ static int gaudi_early_fini(struct hl_device *hdev)
*/
static int gaudi_fetch_psoc_frequency(struct hl_device *hdev)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
u32 nr = 0, nf = 0, od = 0, div_fctr = 0, pll_clk, div_sel;
struct asic_fixed_properties *prop = &hdev->asic_prop;
u16 pll_freq_arr[HL_PLL_NUM_OUTPUTS], freq;
int rc;
if (hdev->asic_prop.fw_security_enabled) {
if ((hdev->fw_components & FW_TYPE_LINUX) &&
(prop->fw_app_cpu_boot_dev_sts0 & CPU_BOOT_DEV_STS0_PLL_INFO_EN)) {
struct gaudi_device *gaudi = hdev->asic_specific;
if (!(gaudi->hw_cap_initialized & HW_CAP_CPU_Q))