From: Emily Deng Date: Wed, 10 Aug 2016 08:01:25 +0000 (+0800) Subject: drm/amdgpu: Change the virtual_display type from int to char*. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9accf2fd33e969862c55be0c20dbfb9b0890bbb8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/amdgpu: Change the virtual_display type from int to char*. For virtual display feature, as there may be multiple GPUs, for user could choose whiche GPU need to enable this feature, change the type of virtual_display from int to char*. The variable will be set like this virtual_display="xxxx:xx:xx.x;xxxx:xx:xx.x;". Signed-off-by: Emily Deng Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 54f71565e6cc..46f250c80a31 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -92,7 +92,7 @@ extern unsigned amdgpu_cg_mask; extern unsigned amdgpu_pg_mask; extern char *amdgpu_disable_cu; extern int amdgpu_sclk_deep_sleep_en; -extern int amdgpu_virtual_display; +extern char *amdgpu_virtual_display; #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000 #define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */ @@ -2072,6 +2072,7 @@ struct amdgpu_device { atomic_t gpu_reset_counter; /* display */ + bool enable_virtual_display; struct amdgpu_mode_info mode_info; struct work_struct hotplug_work; struct amdgpu_irq_src crtc_irq; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 4bf9bd96a46e..3751d262de68 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -46,6 +46,7 @@ #endif #include "vi.h" #include "bif/bif_4_1_d.h" +#include static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev); static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev); @@ -1181,11 +1182,37 @@ int amdgpu_ip_block_version_cmp(struct amdgpu_device *adev, return 1; } +static void amdgpu_whether_enable_virtual_display(struct amdgpu_device *adev) +{ + adev->enable_virtual_display = false; + + if (amdgpu_virtual_display) { + struct drm_device *ddev = adev->ddev; + const char *pci_address_name = pci_name(ddev->pdev); + char *pciaddstr, *pciaddstr_tmp, *pciaddname; + + pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL); + pciaddstr_tmp = pciaddstr; + while ((pciaddname = strsep(&pciaddstr_tmp, ";"))) { + if (!strcmp(pci_address_name, pciaddname)) { + adev->enable_virtual_display = true; + break; + } + } + + DRM_INFO("virtual display string:%s, %s:virtual_display:%d\n", + amdgpu_virtual_display, pci_address_name, + adev->enable_virtual_display); + + kfree(pciaddstr); + } +} + static int amdgpu_early_init(struct amdgpu_device *adev) { int i, r; - DRM_INFO("virtual display enabled:%d\n", amdgpu_virtual_display); + amdgpu_whether_enable_virtual_display(adev); switch (adev->asic_type) { case CHIP_TOPAZ: diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 421dbbfd5e1b..58b1db82f589 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -90,7 +90,7 @@ unsigned amdgpu_pcie_lane_cap = 0; unsigned amdgpu_cg_mask = 0xffffffff; unsigned amdgpu_pg_mask = 0xffffffff; char *amdgpu_disable_cu = NULL; -int amdgpu_virtual_display = 0; +char *amdgpu_virtual_display = NULL; MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes"); module_param_named(vramlimit, amdgpu_vram_limit, int, 0600); @@ -190,8 +190,8 @@ module_param_named(pg_mask, amdgpu_pg_mask, uint, 0444); MODULE_PARM_DESC(disable_cu, "Disable CUs (se.sh.cu,...)"); module_param_named(disable_cu, amdgpu_disable_cu, charp, 0444); -MODULE_PARM_DESC(virtual_display, "enable virtual display (0 = disable virtual display)"); -module_param_named(virtual_display, amdgpu_virtual_display, int, 0444); +MODULE_PARM_DESC(virtual_display, "Enable virtual display feature (the virtual_display will be set like xxxx:xx:xx.x;xxxx:xx:xx.x)"); +module_param_named(virtual_display, amdgpu_virtual_display, charp, 0444); static const struct pci_device_id pciidlist[] = { #ifdef CONFIG_DRM_AMDGPU_CIK diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index e539b28dbef7..825de800b798 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -2323,7 +2323,7 @@ static const struct amdgpu_ip_block_version kaveri_ip_blocks_vd[] = int cik_set_ip_blocks(struct amdgpu_device *adev) { - if (amdgpu_virtual_display) { + if (adev->enable_virtual_display) { switch (adev->asic_type) { case CHIP_BONAIRE: adev->ip_blocks = bonaire_ip_blocks_vd; diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 69c2f8175e68..f2e8aa1a0dbd 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -1441,7 +1441,7 @@ static const struct amdgpu_ip_block_version cz_ip_blocks_vd[] = int vi_set_ip_blocks(struct amdgpu_device *adev) { - if (amdgpu_virtual_display) { + if (adev->enable_virtual_display) { switch (adev->asic_type) { case CHIP_TOPAZ: adev->ip_blocks = topaz_ip_blocks_vd;