STRUCT SPU_PDATA(9)

🌸 STRUCT SPU_PDATA(9) 🌸

okay so bestie, this is a page from the Kernel API Manual and it's literally just one struct — but she's important, so pay attention 💅

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✨ NAME ✨

struct spu_pdata — the platform state variables. that's it, that's the vibe. she holds the platform's whole situation 💖

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🎀 SYNOPSIS 🎀

struct spu_pdata {
    u64 spe_id;
    u64 resource_id;
    u64 priv2_addr;
    u64 shadow_addr;
    struct spe_shadow __iomem *shadow;
    struct priv1_cache cache;
 };

like, look at her. six members, all iconic, no notes 👑

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🦋 MEMBERS 🦋

• spe_id — the HV spe id, and it's handed to you by lv1_construct_logical_spe bestie. that's where she comes from 🫶
• resource_id — the HV spe resource id, and no cap this one comes from ps3_repository_read_spe_resource_id.
• priv2_addr — the lpar address of the spe priv2 area, returned by lv1_construct_logical_spe (yes, again, she's everywhere 💀).
• shadow_addr — the lpar address of the spe register shadow area, also returned by lv1_construct_logical_spe. same function, different address, we love consistency ✨
• shadow — the virtual (ioremap) address of the spe register shadow area. note the type: struct spe_shadow __iomem * — that __iomem is doing so much work, respect her 🙈
• cache — cached values of the priv1 registers. her type is struct priv1_cache, and she's literally just holding onto the values for you. lowkey the most helpful member fr fr 🍓

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👑 SEE ALSO 👑

• Kernel file ./arch/powerpc/platforms/ps3/spu.c
• enum spe_type(9)
• struct spe_shadow(9)
• enum spe_ex_state(9)
• struct priv1_cache(9)
• setup_areas(9)
• ps3_enable_spu(9)

go read those too, iykyk 📚

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ngl if you're touching this struct you should probably know what spe_type, spe_ex_state and priv1_cache are first. just saying 💀

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and that's the whole page bestie, you ate that 🫶 this lil gem lives in ./arch/powerpc/platforms/ps3, dated October 2026, and it's part of the Kernel API Manual — mwah, slay, periodt 💖🎀🦋