diff options
Diffstat (limited to 'drivers/gpu/nova-core/falcon.rs')
| -rw-r--r-- | drivers/gpu/nova-core/falcon.rs | 195 |
1 files changed, 85 insertions, 110 deletions
diff --git a/drivers/gpu/nova-core/falcon.rs b/drivers/gpu/nova-core/falcon.rs index 94c7696a6493..78948cc8bff3 100644 --- a/drivers/gpu/nova-core/falcon.rs +++ b/drivers/gpu/nova-core/falcon.rs @@ -5,10 +5,7 @@ use hal::FalconHal; use kernel::{ - device::{ - self, - Device, // - }, + device, dma::{ Coherent, CoherentBox, @@ -24,7 +21,6 @@ use kernel::{ Io, }, prelude::*, - sync::aref::ARef, time::Delta, }; @@ -358,41 +354,47 @@ pub(crate) trait FalconFirmware { } /// Contains the base parameters common to all Falcon instances. -pub(crate) struct Falcon<E: FalconEngine> { +pub(crate) struct Falcon<'a, E: FalconEngine> { hal: KBox<dyn FalconHal<E>>, - dev: ARef<device::Device>, + dev: &'a device::Device<device::Bound>, + bar: Bar0<'a>, } -impl<E: FalconEngine + 'static> Falcon<E> { +impl<'a, E: FalconEngine + 'static> Falcon<'a, E> { /// Create a new falcon instance. - pub(crate) fn new(dev: &device::Device, chipset: Chipset) -> Result<Self> { + pub(crate) fn new( + dev: &'a device::Device<device::Bound>, + chipset: Chipset, + bar: Bar0<'a>, + ) -> Result<Self> { Ok(Self { hal: hal::falcon_hal(chipset)?, - dev: dev.into(), + dev, + bar, }) } /// Resets DMA-related registers. - pub(crate) fn dma_reset(&self, bar: Bar0<'_>) { - bar.update(regs::NV_PFALCON_FBIF_CTL::of::<E>(), |v| { + pub(crate) fn dma_reset(&self) { + self.bar.update(regs::NV_PFALCON_FBIF_CTL::of::<E>(), |v| { v.with_allow_phys_no_ctx(true) }); - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMACTL::zeroed(), ); } /// Reset the controller, select the falcon core, and wait for memory scrubbing to complete. - pub(crate) fn reset(&self, bar: Bar0<'_>) -> Result { - self.hal.reset_eng(bar)?; - self.hal.select_core(self, bar)?; - self.hal.reset_wait_mem_scrubbing(bar)?; + pub(crate) fn reset(&self) -> Result { + self.hal.reset_eng(self)?; + self.hal.select_core(self)?; + self.hal.reset_wait_mem_scrubbing(self)?; - bar.write( + self.bar.write( WithBase::of::<E>(), - regs::NV_PFALCON_FALCON_RM::from(bar.read(regs::NV_PMC_BOOT_0).into_raw()), + regs::NV_PFALCON_FALCON_RM::from(self.bar.read(regs::NV_PMC_BOOT_0).into_raw()), ); Ok(()) @@ -404,18 +406,14 @@ impl<E: FalconEngine + 'static> Falcon<E> { /// Write a slice to Falcon IMEM memory using programmed I/O (PIO). /// /// Returns `EINVAL` if `img.len()` is not a multiple of 4. - fn pio_wr_imem_slice( - &self, - bar: Bar0<'_>, - load_offsets: FalconPioImemLoadTarget<'_>, - ) -> Result { + fn pio_wr_imem_slice(&self, load_offsets: FalconPioImemLoadTarget<'_>) -> Result { // Rejecting misaligned images here allows us to avoid checking // inside the loops. if load_offsets.data.len() % 4 != 0 { return Err(EINVAL); } - bar.write( + self.bar.write( WithBase::of::<E>().at(Self::PIO_PORT), regs::NV_PFALCON_FALCON_IMEMC::zeroed() .with_secure(load_offsets.secure) @@ -426,13 +424,13 @@ impl<E: FalconEngine + 'static> Falcon<E> { for (n, block) in load_offsets.data.chunks(MEM_BLOCK_ALIGNMENT).enumerate() { let n = u16::try_from(n)?; let tag: u16 = load_offsets.start_tag.checked_add(n).ok_or(ERANGE)?; - bar.write( + self.bar.write( WithBase::of::<E>().at(Self::PIO_PORT), regs::NV_PFALCON_FALCON_IMEMT::zeroed().with_tag(tag), ); for word in block.chunks_exact(4) { let w = [word[0], word[1], word[2], word[3]]; - bar.write( + self.bar.write( WithBase::of::<E>().at(Self::PIO_PORT), regs::NV_PFALCON_FALCON_IMEMD::zeroed().with_data(u32::from_le_bytes(w)), ); @@ -445,18 +443,14 @@ impl<E: FalconEngine + 'static> Falcon<E> { /// Write a slice to Falcon DMEM memory using programmed I/O (PIO). /// /// Returns `EINVAL` if `img.len()` is not a multiple of 4. - fn pio_wr_dmem_slice( - &self, - bar: Bar0<'_>, - load_offsets: FalconPioDmemLoadTarget<'_>, - ) -> Result { + fn pio_wr_dmem_slice(&self, load_offsets: FalconPioDmemLoadTarget<'_>) -> Result { // Rejecting misaligned images here allows us to avoid checking // inside the loops. if load_offsets.data.len() % 4 != 0 { return Err(EINVAL); } - bar.write( + self.bar.write( WithBase::of::<E>().at(Self::PIO_PORT), regs::NV_PFALCON_FALCON_DMEMC::zeroed() .with_aincw(true) @@ -465,7 +459,7 @@ impl<E: FalconEngine + 'static> Falcon<E> { for word in load_offsets.data.chunks_exact(4) { let w = [word[0], word[1], word[2], word[3]]; - bar.write( + self.bar.write( WithBase::of::<E>().at(Self::PIO_PORT), regs::NV_PFALCON_FALCON_DMEMD::zeroed().with_data(u32::from_le_bytes(w)), ); @@ -477,29 +471,28 @@ impl<E: FalconEngine + 'static> Falcon<E> { /// Perform a PIO copy into `IMEM` and `DMEM` of `fw`, and prepare the falcon to run it. pub(crate) fn pio_load<F: FalconFirmware<Target = E> + FalconPioLoadable>( &self, - bar: Bar0<'_>, fw: &F, ) -> Result { - bar.update(regs::NV_PFALCON_FBIF_CTL::of::<E>(), |v| { + self.bar.update(regs::NV_PFALCON_FBIF_CTL::of::<E>(), |v| { v.with_allow_phys_no_ctx(true) }); - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMACTL::zeroed(), ); if let Some(imem_ns) = fw.imem_ns_load_params() { - self.pio_wr_imem_slice(bar, imem_ns)?; + self.pio_wr_imem_slice(imem_ns)?; } if let Some(imem_sec) = fw.imem_sec_load_params() { - self.pio_wr_imem_slice(bar, imem_sec)?; + self.pio_wr_imem_slice(imem_sec)?; } - self.pio_wr_dmem_slice(bar, fw.dmem_load_params())?; + self.pio_wr_dmem_slice(fw.dmem_load_params())?; - self.hal.program_brom(self, bar, &fw.brom_params()); + self.hal.program_brom(self, &fw.brom_params()); - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_BOOTVEC::zeroed().with_value(fw.boot_addr()), ); @@ -513,7 +506,6 @@ impl<E: FalconEngine + 'static> Falcon<E> { /// `sec` is set if the loaded firmware is expected to run in secure mode. fn dma_wr( &self, - bar: Bar0<'_>, dma_obj: &Coherent<[u8]>, target_mem: FalconMem, load_offsets: FalconDmaLoadTarget, @@ -571,7 +563,7 @@ impl<E: FalconEngine + 'static> Falcon<E> { // Set up the base source DMA address. - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMATRFBASE::zeroed().with_base( // CAST: `as u32` is used on purpose since we do want to strip the upper bits, @@ -579,7 +571,7 @@ impl<E: FalconEngine + 'static> Falcon<E> { (dma_start >> 8) as u32, ), ); - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMATRFBASE1::zeroed().try_with_base(dma_start >> 40)?, ); @@ -590,23 +582,23 @@ impl<E: FalconEngine + 'static> Falcon<E> { for pos in (0..num_transfers).map(|i| i * DMA_LEN) { // Perform a transfer of size `DMA_LEN`. - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMATRFMOFFS::zeroed() .try_with_offs(load_offsets.dst_start + pos)?, ); - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_DMATRFFBOFFS::zeroed().with_offs(src_start + pos), ); - bar.write(WithBase::of::<E>(), cmd); + self.bar.write(WithBase::of::<E>(), cmd); // Wait for the transfer to complete. // TIMEOUT: arbitrarily large value, no DMA transfer to the falcon's small memories // should ever take that long. read_poll_timeout( - || Ok(bar.read(regs::NV_PFALCON_FALCON_DMATRFCMD::of::<E>())), + || Ok(self.bar.read(regs::NV_PFALCON_FALCON_DMATRFCMD::of::<E>())), |r| r.idle(), Delta::ZERO, Delta::from_secs(2), @@ -617,12 +609,7 @@ impl<E: FalconEngine + 'static> Falcon<E> { } /// Perform a DMA load into `IMEM` and `DMEM` of `fw`, and prepare the falcon to run it. - fn dma_load<F: FalconFirmware<Target = E> + FalconDmaLoadable>( - &self, - dev: &Device<device::Bound>, - bar: Bar0<'_>, - fw: &F, - ) -> Result { + fn dma_load<F: FalconFirmware<Target = E> + FalconDmaLoadable>(&self, fw: &F) -> Result { // DMA object with firmware content as the source of the DMA engine. let dma_obj = { let fw_slice = fw.as_slice(); @@ -630,7 +617,7 @@ impl<E: FalconEngine + 'static> Falcon<E> { // DMA copies are done in chunks of `MEM_BLOCK_ALIGNMENT`, so pad the length // accordingly and fill with `0`. let mut dma_obj = CoherentBox::zeroed_slice( - dev, + self.dev, fw_slice.len().next_multiple_of(MEM_BLOCK_ALIGNMENT), GFP_KERNEL, )?; @@ -642,24 +629,20 @@ impl<E: FalconEngine + 'static> Falcon<E> { dma_obj.into() }; - self.dma_reset(bar); - bar.update(regs::NV_PFALCON_FBIF_TRANSCFG::of::<E>().at(0), |v| { - v.with_target(FalconFbifTarget::CoherentSysmem) - .with_mem_type(FalconFbifMemType::Physical) - }); + self.dma_reset(); + self.bar + .update(regs::NV_PFALCON_FBIF_TRANSCFG::of::<E>().at(0), |v| { + v.with_target(FalconFbifTarget::CoherentSysmem) + .with_mem_type(FalconFbifMemType::Physical) + }); - self.dma_wr( - bar, - &dma_obj, - FalconMem::ImemSecure, - fw.imem_sec_load_params(), - )?; - self.dma_wr(bar, &dma_obj, FalconMem::Dmem, fw.dmem_load_params())?; + self.dma_wr(&dma_obj, FalconMem::ImemSecure, fw.imem_sec_load_params())?; + self.dma_wr(&dma_obj, FalconMem::Dmem, fw.dmem_load_params())?; - self.hal.program_brom(self, bar, &fw.brom_params()); + self.hal.program_brom(self, &fw.brom_params()); // Set `BootVec` to start of non-secure code. - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_BOOTVEC::zeroed().with_value(fw.boot_addr()), ); @@ -668,10 +651,10 @@ impl<E: FalconEngine + 'static> Falcon<E> { } /// Wait until the falcon CPU is halted. - pub(crate) fn wait_till_halted(&self, bar: Bar0<'_>) -> Result<()> { + pub(crate) fn wait_till_halted(&self) -> Result<()> { // TIMEOUT: arbitrarily large value, firmwares should complete in less than 2 seconds. read_poll_timeout( - || Ok(bar.read(regs::NV_PFALCON_FALCON_CPUCTL::of::<E>())), + || Ok(self.bar.read(regs::NV_PFALCON_FALCON_CPUCTL::of::<E>())), |r| r.halted(), Delta::ZERO, Delta::from_secs(2), @@ -681,16 +664,17 @@ impl<E: FalconEngine + 'static> Falcon<E> { } /// Start the falcon CPU. - pub(crate) fn start(&self, bar: Bar0<'_>) -> Result<()> { - match bar + pub(crate) fn start(&self) -> Result<()> { + match self + .bar .read(regs::NV_PFALCON_FALCON_CPUCTL::of::<E>()) .alias_en() { - true => bar.write( + true => self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_CPUCTL_ALIAS::zeroed().with_startcpu(true), ), - false => bar.write( + false => self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_CPUCTL::zeroed().with_startcpu(true), ), @@ -700,16 +684,16 @@ impl<E: FalconEngine + 'static> Falcon<E> { } /// Writes values to the mailbox registers if provided. - pub(crate) fn write_mailboxes(&self, bar: Bar0<'_>, mbox0: Option<u32>, mbox1: Option<u32>) { + pub(crate) fn write_mailboxes(&self, mbox0: Option<u32>, mbox1: Option<u32>) { if let Some(mbox0) = mbox0 { - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_MAILBOX0::zeroed().with_value(mbox0), ); } if let Some(mbox1) = mbox1 { - bar.write( + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_MAILBOX1::zeroed().with_value(mbox1), ); @@ -717,21 +701,23 @@ impl<E: FalconEngine + 'static> Falcon<E> { } /// Reads the value from `mbox0` register. - pub(crate) fn read_mailbox0(&self, bar: Bar0<'_>) -> u32 { - bar.read(regs::NV_PFALCON_FALCON_MAILBOX0::of::<E>()) + pub(crate) fn read_mailbox0(&self) -> u32 { + self.bar + .read(regs::NV_PFALCON_FALCON_MAILBOX0::of::<E>()) .value() } /// Reads the value from `mbox1` register. - pub(crate) fn read_mailbox1(&self, bar: Bar0<'_>) -> u32 { - bar.read(regs::NV_PFALCON_FALCON_MAILBOX1::of::<E>()) + pub(crate) fn read_mailbox1(&self) -> u32 { + self.bar + .read(regs::NV_PFALCON_FALCON_MAILBOX1::of::<E>()) .value() } /// Reads values from both mailbox registers. - pub(crate) fn read_mailboxes(&self, bar: Bar0<'_>) -> (u32, u32) { - let mbox0 = self.read_mailbox0(bar); - let mbox1 = self.read_mailbox1(bar); + pub(crate) fn read_mailboxes(&self) -> (u32, u32) { + let mbox0 = self.read_mailbox0(); + let mbox1 = self.read_mailbox1(); (mbox0, mbox1) } @@ -743,54 +729,43 @@ impl<E: FalconEngine + 'static> Falcon<E> { /// /// Wait up to two seconds for the firmware to complete, and return its exit status read from /// the `MBOX0` and `MBOX1` registers. - pub(crate) fn boot( - &self, - bar: Bar0<'_>, - mbox0: Option<u32>, - mbox1: Option<u32>, - ) -> Result<(u32, u32)> { - self.write_mailboxes(bar, mbox0, mbox1); - self.start(bar)?; - self.wait_till_halted(bar)?; - Ok(self.read_mailboxes(bar)) + pub(crate) fn boot(&self, mbox0: Option<u32>, mbox1: Option<u32>) -> Result<(u32, u32)> { + self.write_mailboxes(mbox0, mbox1); + self.start()?; + self.wait_till_halted()?; + Ok(self.read_mailboxes()) } /// Returns the fused version of the signature to use in order to run a HS firmware on this /// falcon instance. `engine_id_mask` and `ucode_id` are obtained from the firmware header. pub(crate) fn signature_reg_fuse_version( &self, - bar: Bar0<'_>, engine_id_mask: u16, ucode_id: u8, ) -> Result<u32> { self.hal - .signature_reg_fuse_version(self, bar, engine_id_mask, ucode_id) + .signature_reg_fuse_version(self, engine_id_mask, ucode_id) } /// Check if the RISC-V core is active. /// /// Returns `true` if the RISC-V core is active, `false` otherwise. - pub(crate) fn is_riscv_active(&self, bar: Bar0<'_>) -> bool { - self.hal.is_riscv_active(bar) + pub(crate) fn is_riscv_active(&self) -> bool { + self.hal.is_riscv_active(self) } /// Load a firmware image into Falcon memory, using the preferred method for the current /// chipset. - pub(crate) fn load<F: FalconFirmware<Target = E> + FalconDmaLoadable>( - &self, - dev: &Device<device::Bound>, - bar: Bar0<'_>, - fw: &F, - ) -> Result { + pub(crate) fn load<F: FalconFirmware<Target = E> + FalconDmaLoadable>(&self, fw: &F) -> Result { match self.hal.load_method() { - LoadMethod::Dma => self.dma_load(dev, bar, fw), - LoadMethod::Pio => self.pio_load(bar, &fw.try_as_pio_loadable()?), + LoadMethod::Dma => self.dma_load(fw), + LoadMethod::Pio => self.pio_load(&fw.try_as_pio_loadable()?), } } /// Write the application version to the OS register. - pub(crate) fn write_os_version(&self, bar: Bar0<'_>, app_version: u32) { - bar.write( + pub(crate) fn write_os_version(&self, app_version: u32) { + self.bar.write( WithBase::of::<E>(), regs::NV_PFALCON_FALCON_OS::zeroed().with_value(app_version), ); 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