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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KIwO3bqb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KIwO3bqb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A218C4CEE7; Wed, 18 Jun 2025 20:24:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750278289; bh=4GCmh9V/BO2aKWAz9WhWrIZsBvlc1+u1r1T//FdrIng=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KIwO3bqbGcgVbQKaxSRNKuzTcyjApwJpMYcTlI+WLHICeh2mf6GniKw6iNX9jYPXg SiOOUHC9gbmAUPtLGwz5QS/WKxZp1JC1MzUq3DwLkoZ+QV8nxsdBwUvaopf/pKU42V +wqvQHffwVZkUKl0L3TsRrlKLDk2m8XX5gyMweIUGkXlhrtlgvljfkScNlH8I7h6et mS/sGwEuIfDn37HHBtCxsDcUO2fiKm9rNbJODI4ttuOBoxoTxAQeW6PLN+Giwye5CB n2rdBdeDLmKRcD/bNGGb/1g6Th/rQpsOy+1aPjYqG0EtBAHZ39DAVS1p/WTIG4TwD/ fCKhKyg8Kyr2w== Date: Wed, 18 Jun 2025 22:24:41 +0200 From: Danilo Krummrich To: Alexandre Courbot Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Andreas Hindborg , Alice Ryhl , Trevor Gross , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Benno Lossin , John Hubbard , Ben Skeggs , Joel Fernandes , Timur Tabi , Alistair Popple , linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Lyude Paul Subject: Re: [PATCH v5 23/23] gpu: nova-core: load and run FWSEC-FRTS Message-ID: References: <20250612-nova-frts-v5-0-14ba7eaf166b@nvidia.com> <20250612-nova-frts-v5-23-14ba7eaf166b@nvidia.com> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Jun 18, 2025 at 10:23:15PM +0200, Danilo Krummrich wrote: > On Thu, Jun 12, 2025 at 11:01:51PM +0900, Alexandre Courbot wrote: > > @@ -237,6 +237,67 @@ pub(crate) fn new( > > }, > > )?; > > > > + // Check that the WPR2 region does not already exists - if it does, the GPU needs to be > > + // reset. > > + if regs::NV_PFB_PRI_MMU_WPR2_ADDR_HI::read(bar).hi_val() != 0 { > > + dev_err!( > > + pdev.as_ref(), > > + "WPR2 region already exists - GPU needs to be reset to proceed\n" > > + ); > > + return Err(EBUSY); > > + } > > + > > + // Reset falcon, load FWSEC-FRTS, and run it. > > + gsp_falcon > > + .reset(bar) > > + .inspect_err(|e| dev_err!(pdev.as_ref(), "Failed to reset GSP falcon: {:?}\n", e))?; > > + gsp_falcon > > + .dma_load(bar, &fwsec_frts) > > + .inspect_err(|e| dev_err!(pdev.as_ref(), "Failed to load FWSEC-FRTS: {:?}\n", e))?; > > + let (mbox0, _) = gsp_falcon > > + .boot(bar, Some(0), None) > > + .inspect_err(|e| dev_err!(pdev.as_ref(), "Failed to boot FWSEC-FRTS: {:?}\n", e))?; > > + if mbox0 != 0 { > > + dev_err!(pdev.as_ref(), "FWSEC firmware returned error {}\n", mbox0); > > + return Err(EIO); > > + } > > + > > + // SCRATCH_E contains FWSEC-FRTS' error code, if any. > > + let frts_status = regs::NV_PBUS_SW_SCRATCH_0E::read(bar).frts_err_code(); > > + if frts_status != 0 { > > + dev_err!( > > + pdev.as_ref(), > > + "FWSEC-FRTS returned with error code {:#x}", > > + frts_status > > + ); > > + return Err(EIO); > > + } > > + > > + // Check the WPR2 has been created as we requested. > > + let (wpr2_lo, wpr2_hi) = ( > > + (regs::NV_PFB_PRI_MMU_WPR2_ADDR_LO::read(bar).lo_val() as u64) << 12, > > + (regs::NV_PFB_PRI_MMU_WPR2_ADDR_HI::read(bar).hi_val() as u64) << 12, > > + ); > > + if wpr2_hi == 0 { > > + dev_err!( > > + pdev.as_ref(), > > + "WPR2 region not created after running FWSEC-FRTS\n" > > + ); > > + > > + return Err(EIO); > > + } else if wpr2_lo != fb_layout.frts.start { > > + dev_err!( > > + pdev.as_ref(), > > + "WPR2 region created at unexpected address {:#x}; expected {:#x}\n", > > + wpr2_lo, > > + fb_layout.frts.start, > > + ); > > + return Err(EIO); > > + } > > + > > + dev_dbg!(pdev.as_ref(), "WPR2: {:#x}-{:#x}\n", wpr2_lo, wpr2_hi); > > + dev_dbg!(pdev.as_ref(), "GPU instance built\n"); > > + > > This makes Gpu::new() quite messy, can we move this to a separate function > please? Actually, can't this just be a method of FwsecFirmware?