Lines Matching refs:ocmem
24 #include <soc/qcom/ocmem.h>
53 struct ocmem {
101 static inline void ocmem_write(struct ocmem *ocmem, u32 reg, u32 data)
103 writel(data, ocmem->mmio + reg);
106 static inline u32 ocmem_read(struct ocmem *ocmem, u32 reg)
108 return readl(ocmem->mmio + reg);
111 static void update_ocmem(struct ocmem *ocmem)
117 for (i = 0; i < ocmem->config->num_regions; i++) {
118 struct ocmem_region *region = &ocmem->regions[i];
124 dev_dbg(ocmem->dev, "ocmem_region_mode_control %x\n",
126 ocmem_write(ocmem, OCMEM_REG_REGION_MODE_CTL, region_mode_ctrl);
129 for (i = 0; i < ocmem->config->num_regions; i++) {
130 struct ocmem_region *region = &ocmem->regions[i];
138 ocmem_write(ocmem, OCMEM_REG_PSGSC_CTL(i), data);
142 static unsigned long phys_to_offset(struct ocmem *ocmem,
145 if (addr < ocmem->memory->start || addr >= ocmem->memory->end)
148 return addr - ocmem->memory->start;
151 static unsigned long device_address(struct ocmem *ocmem,
158 return phys_to_offset(ocmem, addr);
161 static void update_range(struct ocmem *ocmem, struct ocmem_buf *buf,
167 for (i = 0; i < ocmem->config->num_regions; i++) {
168 struct ocmem_region *region = &ocmem->regions[i];
182 update_ocmem(ocmem);
185 struct ocmem *of_get_ocmem(struct device *dev)
189 struct ocmem *ocmem;
206 ocmem = platform_get_drvdata(pdev);
207 if (!ocmem) {
208 dev_err(dev, "Cannot get ocmem\n");
212 return ocmem;
216 struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem, enum ocmem_client client,
229 if (test_and_set_bit_lock(BIT(client), &ocmem->active_allocations))
239 buf->addr = device_address(ocmem, client, buf->offset);
242 update_range(ocmem, buf, CORE_ON, WIDE_MODE);
248 dev_err(ocmem->dev, "could not lock: %d\n", ret);
253 ocmem_write(ocmem, OCMEM_REG_GFX_MPU_START, buf->offset);
254 ocmem_write(ocmem, OCMEM_REG_GFX_MPU_END,
258 dev_dbg(ocmem->dev, "using %ldK of OCMEM at 0x%08lx for client %d\n",
266 clear_bit_unlock(BIT(client), &ocmem->active_allocations);
272 void ocmem_free(struct ocmem *ocmem, enum ocmem_client client,
279 update_range(ocmem, buf, CLK_OFF, MODE_DEFAULT);
287 dev_err(ocmem->dev, "could not unlock: %d\n", ret);
289 ocmem_write(ocmem, OCMEM_REG_GFX_MPU_START, 0x0);
290 ocmem_write(ocmem, OCMEM_REG_GFX_MPU_END, 0x0);
295 clear_bit_unlock(BIT(client), &ocmem->active_allocations);
304 struct ocmem *ocmem;
309 ocmem = devm_kzalloc(dev, sizeof(*ocmem), GFP_KERNEL);
310 if (!ocmem)
313 ocmem->dev = dev;
314 ocmem->config = device_get_match_data(dev);
316 ocmem->core_clk = devm_clk_get(dev, "core");
317 if (IS_ERR(ocmem->core_clk))
318 return dev_err_probe(dev, PTR_ERR(ocmem->core_clk),
321 ocmem->iface_clk = devm_clk_get_optional(dev, "iface");
322 if (IS_ERR(ocmem->iface_clk))
323 return dev_err_probe(dev, PTR_ERR(ocmem->iface_clk),
326 ocmem->mmio = devm_platform_ioremap_resource_byname(pdev, "ctrl");
327 if (IS_ERR(ocmem->mmio))
328 return dev_err_probe(&pdev->dev, PTR_ERR(ocmem->mmio),
331 ocmem->memory = platform_get_resource_byname(pdev, IORESOURCE_MEM,
333 if (!ocmem->memory) {
339 WARN_ON(clk_set_rate(ocmem->core_clk, 1000) < 0);
341 ret = clk_prepare_enable(ocmem->core_clk);
343 return dev_err_probe(ocmem->dev, ret, "Failed to enable core clock\n");
345 ret = clk_prepare_enable(ocmem->iface_clk);
347 clk_disable_unprepare(ocmem->core_clk);
348 return dev_err_probe(ocmem->dev, ret, "Failed to enable iface clock\n");
360 reg = ocmem_read(ocmem, OCMEM_REG_HW_VERSION);
366 reg = ocmem_read(ocmem, OCMEM_REG_HW_PROFILE);
367 ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);
368 ocmem->num_macros = OCMEM_HW_PROFILE_NUM_MACROS(reg);
369 ocmem->interleaved = !!(reg & OCMEM_HW_PROFILE_INTERLEAVING);
371 num_banks = ocmem->num_ports / 2;
372 region_size = ocmem->config->macro_size * num_banks;
375 ocmem->num_ports, ocmem->config->num_regions,
376 ocmem->num_macros, ocmem->interleaved ? "" : "not ");
378 ocmem->regions = devm_kcalloc(dev, ocmem->config->num_regions,
380 if (!ocmem->regions) {
385 for (i = 0; i < ocmem->config->num_regions; i++) {
386 struct ocmem_region *region = &ocmem->regions[i];
396 if (i == (ocmem->config->num_regions - 1) &&
398 region->macro_size = ocmem->config->macro_size / 2;
401 region->macro_size = ocmem->config->macro_size;
409 platform_set_drvdata(pdev, ocmem);
414 clk_disable_unprepare(ocmem->core_clk);
415 clk_disable_unprepare(ocmem->iface_clk);
421 struct ocmem *ocmem = platform_get_drvdata(pdev);
423 clk_disable_unprepare(ocmem->core_clk);
424 clk_disable_unprepare(ocmem->iface_clk);
438 { .compatible = "qcom,msm8226-ocmem", .data = &ocmem_8226_config },
439 { .compatible = "qcom,msm8974-ocmem", .data = &ocmem_8974_config },
449 .name = "ocmem",