On Tue, Dec 08, 2015 at 12:55:04AM +0800, Qipeng Zha wrote:
> BIOS restructure exported memory resources for Punit
> in acpi table, So update resources for Punit.
>
> Signed-off-by: Qipeng Zha <[email protected]>
Thank you for the update Qipeng. I will review shortly.
+Andriy who originally raised the concern over the ACPI resource assumptions in
the previous version. Andriy, this resource allocation looks to be a substantial
improvement to me. Do you have any further concerns?
> ---
> drivers/platform/x86/intel_pmc_ipc.c | 142
> +++++++++++++++++++++++------------
> 1 file changed, 96 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/platform/x86/intel_pmc_ipc.c
> b/drivers/platform/x86/intel_pmc_ipc.c
> index 28b2a12..c699950 100644
> --- a/drivers/platform/x86/intel_pmc_ipc.c
> +++ b/drivers/platform/x86/intel_pmc_ipc.c
> @@ -65,12 +65,16 @@
> #define IPC_TRIGGER_MODE_IRQ true
>
> /* exported resources from IFWI */
> -#define PLAT_RESOURCE_IPC_INDEX 0
> -#define PLAT_RESOURCE_IPC_SIZE 0x1000
> -#define PLAT_RESOURCE_GCR_SIZE 0x1000
> -#define PLAT_RESOURCE_PUNIT_DATA_INDEX 1
> -#define PLAT_RESOURCE_PUNIT_INTER_INDEX 2
> -#define PLAT_RESOURCE_ACPI_IO_INDEX 0
> +#define PLAT_RES_IPC_INDEX 0
> +#define PLAT_RES_IPC_SIZE 0x1000
> +#define PLAT_RES_GCR_SIZE 0x1000
> +#define PLAT_RES_PUNIT_BIOS_DATA_INDEX 1
> +#define PLAT_RES_PUNIT_BIOS_INTER_INDEX 2
> +#define PLAT_RES_PUNIT_ISP_DATA_INDEX 4
> +#define PLAT_RES_PUNIT_ISP_INTER_INDEX 5
> +#define PLAT_RES_PUNIT_GTD_DATA_INDEX 6
> +#define PLAT_RES_PUNIT_GTD_INTER_INDEX 7
> +#define PLAT_RES_ACPI_IO_INDEX 0
>
> /*
> * BIOS does not create an ACPI device for each PMC function,
> @@ -105,10 +109,6 @@ static struct intel_pmc_ipc_dev {
> int gcr_size;
>
> /* punit */
> - resource_size_t punit_base;
> - int punit_size;
> - resource_size_t punit_base2;
> - int punit_size2;
> struct platform_device *punit_dev;
> } ipcdev;
>
> @@ -444,9 +444,22 @@ static const struct attribute_group intel_ipc_group = {
> .attrs = intel_ipc_attrs,
> };
>
> -#define PUNIT_RESOURCE_INTER 1
> -static struct resource punit_res[] = {
> - /* Punit */
> +static struct resource punit_res_array[] = {
> + /* Punit BIOS */
> + {
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .flags = IORESOURCE_MEM,
> + },
> + /* Punit ISP */
> + {
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .flags = IORESOURCE_MEM,
> + },
> + /* Punit GTD */
> {
> .flags = IORESOURCE_MEM,
> },
> @@ -481,7 +494,6 @@ static struct itco_wdt_platform_data tco_info = {
> static int ipc_create_punit_device(void)
> {
> struct platform_device *pdev;
> - struct resource *res;
> int ret;
>
> pdev = platform_device_alloc(PUNIT_DEVICE_NAME, -1);
> @@ -491,17 +503,8 @@ static int ipc_create_punit_device(void)
> }
>
> pdev->dev.parent = ipcdev.dev;
> -
> - res = punit_res;
> - res->start = ipcdev.punit_base;
> - res->end = res->start + ipcdev.punit_size - 1;
> -
> - res = punit_res + PUNIT_RESOURCE_INTER;
> - res->start = ipcdev.punit_base2;
> - res->end = res->start + ipcdev.punit_size2 - 1;
> -
> - ret = platform_device_add_resources(pdev, punit_res,
> - ARRAY_SIZE(punit_res));
> + ret = platform_device_add_resources(pdev, punit_res_array,
> + ARRAY_SIZE(punit_res_array));
> if (ret) {
> dev_err(ipcdev.dev, "Failed to add platform punit resources\n");
> goto err;
> @@ -590,12 +593,12 @@ static int ipc_create_pmc_devices(void)
>
> static int ipc_plat_get_res(struct platform_device *pdev)
> {
> - struct resource *res;
> + struct resource *res, *punit_res;
> void __iomem *addr;
> int size;
>
> res = platform_get_resource(pdev, IORESOURCE_IO,
> - PLAT_RESOURCE_ACPI_IO_INDEX);
> + PLAT_RES_ACPI_IO_INDEX);
> if (!res) {
> dev_err(&pdev->dev, "Failed to get io resource\n");
> return -ENXIO;
> @@ -606,37 +609,84 @@ static int ipc_plat_get_res(struct platform_device
> *pdev)
> dev_info(&pdev->dev, "io res: %llx %x\n",
> (long long)res->start, (int)resource_size(res));
>
> + punit_res = punit_res_array;
> res = platform_get_resource(pdev, IORESOURCE_MEM,
> - PLAT_RESOURCE_PUNIT_DATA_INDEX);
> + PLAT_RES_PUNIT_BIOS_DATA_INDEX);
> if (!res) {
> - dev_err(&pdev->dev, "Failed to get punit resource\n");
> + dev_err(&pdev->dev, "Failed to get res of punit BIOS data\n");
> return -ENXIO;
> }
> - size = resource_size(res);
> - ipcdev.punit_base = res->start;
> - ipcdev.punit_size = size;
> - dev_info(&pdev->dev, "punit data res: %llx %x\n",
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit BIOS data res: %llx %x\n",
> (long long)res->start, (int)resource_size(res));
>
> res = platform_get_resource(pdev, IORESOURCE_MEM,
> - PLAT_RESOURCE_PUNIT_INTER_INDEX);
> + PLAT_RES_PUNIT_BIOS_INTER_INDEX);
> if (!res) {
> - dev_err(&pdev->dev, "Failed to get punit inter resource\n");
> + dev_err(&pdev->dev, "Failed to get res of punit BIOS inter\n");
> return -ENXIO;
> }
> - size = resource_size(res);
> - ipcdev.punit_base2 = res->start;
> - ipcdev.punit_size2 = size;
> - dev_info(&pdev->dev, "punit interface res: %llx %x\n",
> + punit_res++;
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit BIOS interface res: %llx %x\n",
> + (long long)res->start, (int)resource_size(res));
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM,
> + PLAT_RES_PUNIT_ISP_DATA_INDEX);
> + if (!res) {
> + dev_err(&pdev->dev, "Failed to get res of punit ISP data\n");
> + return -ENXIO;
> + }
> + punit_res++;
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit ISP data res: %llx %x\n",
> (long long)res->start, (int)resource_size(res));
>
> res = platform_get_resource(pdev, IORESOURCE_MEM,
> - PLAT_RESOURCE_IPC_INDEX);
> + PLAT_RES_PUNIT_ISP_INTER_INDEX);
> + if (!res) {
> + dev_err(&pdev->dev, "Failed to get res of punit ISP inter\n");
> + return -ENXIO;
> + }
> + punit_res++;
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit ISP interface res: %llx %x\n",
> + (long long)res->start, (int)resource_size(res));
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM,
> + PLAT_RES_PUNIT_GTD_DATA_INDEX);
> + if (!res) {
> + dev_err(&pdev->dev, "Failed to get res of punit GTD data\n");
> + return -ENXIO;
> + }
> + punit_res++;
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit GTD data res: %llx %x\n",
> + (long long)res->start, (int)resource_size(res));
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM,
> + PLAT_RES_PUNIT_GTD_INTER_INDEX);
> + if (!res) {
> + dev_err(&pdev->dev, "Failed to get res of punit GTD inter\n");
> + return -ENXIO;
> + }
> + punit_res++;
> + punit_res->start = res->start;
> + punit_res->end = res->start + resource_size(res) - 1;
> + dev_info(&pdev->dev, "punit GTD interface res: %llx %x\n",
> + (long long)res->start, (int)resource_size(res));
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RES_IPC_INDEX);
> if (!res) {
> dev_err(&pdev->dev, "Failed to get ipc resource\n");
> return -ENXIO;
> }
> - size = PLAT_RESOURCE_IPC_SIZE;
> + size = PLAT_RES_IPC_SIZE;
> if (!request_mem_region(res->start, size, pdev->name)) {
> dev_err(&pdev->dev, "Failed to request ipc resource\n");
> return -EBUSY;
> @@ -650,7 +700,7 @@ static int ipc_plat_get_res(struct platform_device *pdev)
> ipcdev.ipc_base = addr;
>
> ipcdev.gcr_base = res->start + size;
> - ipcdev.gcr_size = PLAT_RESOURCE_GCR_SIZE;
> + ipcdev.gcr_size = PLAT_RES_GCR_SIZE;
> dev_info(&pdev->dev, "ipc res: %llx %x\n",
> (long long)res->start, (int)resource_size(res));
>
> @@ -714,9 +764,9 @@ err_irq:
> err_device:
> iounmap(ipcdev.ipc_base);
> res = platform_get_resource(pdev, IORESOURCE_MEM,
> - PLAT_RESOURCE_IPC_INDEX);
> + PLAT_RES_IPC_INDEX);
> if (res)
> - release_mem_region(res->start, PLAT_RESOURCE_IPC_SIZE);
> + release_mem_region(res->start, PLAT_RES_IPC_SIZE);
> return ret;
> }
>
> @@ -730,9 +780,9 @@ static int ipc_plat_remove(struct platform_device *pdev)
> platform_device_unregister(ipcdev.punit_dev);
> iounmap(ipcdev.ipc_base);
> res = platform_get_resource(pdev, IORESOURCE_MEM,
> - PLAT_RESOURCE_IPC_INDEX);
> + PLAT_RES_IPC_INDEX);
> if (res)
> - release_mem_region(res->start, PLAT_RESOURCE_IPC_SIZE);
> + release_mem_region(res->start, PLAT_RES_IPC_SIZE);
> ipcdev.dev = NULL;
> return 0;
> }
> --
> 1.8.3.2
>
>
--
Darren Hart
Intel Open Source Technology Center
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