
impl CudaExecutor {

    /// Execute Q5_K GEMV (fused dequantization + matvec) - PAR-003
    pub fn q5k_gemv(
        &mut self,
        weights: &[u8],
        input: &[f32],
        output: &mut [f32],
        n: u32,
        k: u32,
    ) -> Result<(), GpuError> {
        let kernel_type = KernelType::Q5KGemv { k, n };
        let kernel_name = self.kernels.kernel_name(&kernel_type);
        let cache_key = format!("q5k_gemv_{}_{}", k, n);

        if !self.modules.contains_key(&cache_key) {
            let ptx = self.kernels.generate_ptx(&kernel_type);
            let module = self.compile_ptx(&ptx)?;
            self.modules.insert(cache_key.clone(), module);
        }

        let module = self
            .modules
            .get_mut(&cache_key)
            .expect("module just inserted");

        let buf_weights = GpuBuffer::from_host(&self.context, weights)?;
        let buf_input = GpuBuffer::from_host(&self.context, input)?;
        let buf_output = GpuBuffer::<f32>::new(&self.context, n as usize)?;

        let config = LaunchConfig::grid_2d(n, 1, 32, 1);

        let mut ptr_output = buf_output.as_ptr();
        let mut ptr_weights = buf_weights.as_ptr();
        let mut ptr_input = buf_input.as_ptr();
        let mut k_val = k;
        let mut n_val = n;

        // SAFETY: Memory safety ensured by bounds checking and alignment
        unsafe {
            self.stream.launch_kernel(
                module,
                kernel_name,
                &config,
                &mut [
                    std::ptr::from_mut(&mut ptr_output) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut ptr_weights) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut ptr_input) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut k_val) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut n_val) as *mut std::ffi::c_void,
                ],
            )?;
        }

        self.stream.synchronize()?;
        buf_output.copy_to_host(output)?;

        Ok(())
    }

    /// Execute Q6_K GEMV (fused dequantization + matvec) - PAR-003
    pub fn q6k_gemv(
        &mut self,
        weights: &[u8],
        input: &[f32],
        output: &mut [f32],
        n: u32,
        k: u32,
    ) -> Result<(), GpuError> {
        let kernel_type = KernelType::Q6KGemv { k, n };
        let kernel_name = self.kernels.kernel_name(&kernel_type);
        let cache_key = format!("q6k_gemv_{}_{}", k, n);

        if !self.modules.contains_key(&cache_key) {
            let ptx = self.kernels.generate_ptx(&kernel_type);
            let module = self.compile_ptx(&ptx)?;
            self.modules.insert(cache_key.clone(), module);
        }

        let module = self
            .modules
            .get_mut(&cache_key)
            .expect("module just inserted");

        let buf_weights = GpuBuffer::from_host(&self.context, weights)?;
        let buf_input = GpuBuffer::from_host(&self.context, input)?;
        let buf_output = GpuBuffer::<f32>::new(&self.context, n as usize)?;

        let config = LaunchConfig::grid_2d(n, 1, 32, 1);

        let mut ptr_output = buf_output.as_ptr();
        let mut ptr_weights = buf_weights.as_ptr();
        let mut ptr_input = buf_input.as_ptr();
        let mut k_val = k;
        let mut n_val = n;

        // SAFETY: Memory safety ensured by bounds checking and alignment
        unsafe {
            self.stream.launch_kernel(
                module,
                kernel_name,
                &config,
                &mut [
                    std::ptr::from_mut(&mut ptr_output) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut ptr_weights) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut ptr_input) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut k_val) as *mut std::ffi::c_void,
                    std::ptr::from_mut(&mut n_val) as *mut std::ffi::c_void,
                ],
            )?;
        }

        self.stream.synchronize()?;
        buf_output.copy_to_host(output)?;

        Ok(())
    }
}

include!("streams.rs");
include!("gemm_tiled.rs");
include!("execute.rs");
