gsp-phys: real GSP boot stages 3d/3e and the GSP-RM run-sequencer event

Stage 3d stages the GSP-RM boot from host sysmem (FMC, radix3 over the GSP-RM ELF, signature, message queues, libos LOGINIT/LOGRM/RMARGS and GSP arguments) and runs Booter Load on SEC2: GSP RISC-V reset, libos mailbox, IMEM/DMEM direct load, BOOTVEC=0, M0==0, FALCON_OS, RISC-V active. Stage 3e links the status queue and polls for GSP-RM events; it now also executes the inline run-sequencer command buffer (event 0x1002) against BAR0 (REG_WRITE/MODIFY/POLL, DELAY, STORE, CORE_* including CORE_RESUME) and then waits for GSP_INIT_DONE 0x1001.

Gated by gsp_phys_boot / gsp_phys_boot_dryrun (default off; the normal load path writes nothing). gsp_phys_fwsec=1 without gsp_phys_boot=1 is refused: a FWSEC-only carve cannot pass the booter-unload handoff gate. Release quiesces the GSP, runs the existing FWSEC-SB/booter-unload teardown and frees all staging.

tools/gen_gsp_bindata.py decodes the public generated archives into the Booter Load image (prod signature patched at 0x8700) and the GSP-RM boot (FMC) image; both are self-checked at build time.

1 files changed, 51 insertions, 1 deletions

diff --git a/kernel/gsp_phys_boot.c b/kernel/gsp_phys_boot.c
index 0322c70..59e7966 100644
--- a/kernel/gsp_phys_boot.c
+++ b/kernel/gsp_phys_boot.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 
 #include "gsp_phys_boot.h"
+#include "gsp_phys_booter.h"
 
 static bool gsp_phys_layout_param;
 module_param_named(gsp_phys_layout, gsp_phys_layout_param, bool, 0644);
@@ -301,7 +302,13 @@ int gsp_phys_boot_layout_init(struct gsp_phys_boot *boot, struct pci_dev *pdev,
 	u64 pre_wpr_heap, post_wpr_heap, wpr_heap_size;
 	int ret;
 
-	if (!gsp_phys_layout_enabled() || boot->initialized)
+	/*
+	 * gsp_phys_boot/gsp_phys_boot_dryrun force the layout stage (the boot
+	 * path cannot stage the boot images without the argument pages and the
+	 * computed WPR layout); gsp_phys_layout keeps its standalone meaning.
+	 */
+	if ((!gsp_phys_layout_enabled() && !gsp_phys_boot_requested()) ||
+	    boot->initialized)
 		return 0;
 	if (!pdev || !bar0 || !fw_image_size)
 		return -EINVAL;
@@ -492,3 +499,46 @@ void gsp_phys_boot_layout_fini(struct gsp_phys_boot *boot, struct pci_dev *pdev)
 	boot->initialized = false;
 	pr_info("gsp-phys-boot: boot-argument pages freed\n");
 }
+
+int gsp_phys_boot_meta_set_sysmem(struct gsp_phys_boot *boot,
+				  u64 radix3_dma, u64 radix3_size,
+				  u64 fmc_dma, u64 fmc_size,
+				  u64 sig_dma, u64 sig_size)
+{
+	struct gsp_phys_wpr_meta *meta;
+
+	if (!boot || !boot->initialized || !boot->wpr_meta_va)
+		return -EINVAL;
+	if (!radix3_dma || !radix3_size || !fmc_dma || !fmc_size || !sig_dma ||
+	    !sig_size) {
+		pr_err("gsp-phys-boot: refusing to write zero sysmem addresses into the WPR meta (radix3=0x%llx fmc=0x%llx sig=0x%llx)\n",
+		       radix3_dma, fmc_dma, sig_dma);
+		return -EINVAL;
+	}
+
+	meta = boot->wpr_meta_va;
+	meta->sysmem_addr_of_radix3_elf = radix3_dma;
+	meta->size_of_radix3_elf = radix3_size;
+	meta->sysmem_addr_of_bootloader = fmc_dma;
+	meta->size_of_bootloader = fmc_size;
+	meta->bootloader_code_offset = 0;
+	meta->bootloader_data_offset = 0;
+	meta->bootloader_manifest_offset = 0;
+	meta->sysmem_addr_of_signature = sig_dma;
+	meta->size_of_signature = sig_size;
+	meta->sysmem_addr_of_crash_report_queue = 0;
+	meta->size_of_crash_report_queue = 0;
+
+	if (meta->sysmem_addr_of_radix3_elf != radix3_dma ||
+	    meta->sysmem_addr_of_bootloader != fmc_dma ||
+	    meta->sysmem_addr_of_signature != sig_dma ||
+	    meta->size_of_bootloader != fmc_size ||
+	    meta->size_of_signature != sig_size) {
+		pr_err("gsp-phys-boot: WPR meta sysmem readback mismatch\n");
+		return -EIO;
+	}
+
+	pr_info("gsp-phys-boot: WPR meta sysmem addrs: radix3=0x%llx (0x%llx), bootloader=0x%llx (0x%llx), signature=0x%llx (0x%llx), crashReportQueue=0/0, bootloader offsets=0\n",
+		radix3_dma, radix3_size, fmc_dma, fmc_size, sig_dma, sig_size);
+	return 0;
+}