From ae175e45edc5807131dfb1b63d3e4795e96a3f86 Mon Sep 17 00:00:00 2001 From: Divya Singhatwaria Date: Tue, 23 Jul 2019 10:43:35 +0530 Subject: gpu: nvgpu: Use TPC_PG_MASK to powergate the TPC - In GV11B, read fuse_status_opt_tpc_gpc register to read which TPCs are floorswept. - The driver will also read sysfs node: tpc_pg_mask - Based on these two values "can_tpc_powergate" will be set to true or false and mask will be used to write to fuse_ctrl_opt_tpc_gpc register to powergate the TPC. - can_tpc_powergate = true indicates that the mask value sent from userspace is valid and can be used to power gate the desired TPC - can_tpc_powergate = false indicates that the mask value sent from userspace is not valid and cannot be used to power gate the desired TPC. Bug 200532639 Change-Id: Ib0806e4c96305a13b3574e8063ad8e16770aa7cd Signed-off-by: Divya Singhatwaria Reviewed-on: https://git-master.nvidia.com/r/2159219 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c | 25 +++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) (limited to 'drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c') diff --git a/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c b/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c index 4a94c1cd..ac1958a2 100644 --- a/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c +++ b/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c @@ -218,26 +218,29 @@ static int gv11b_tegra_suspend(struct device *dev) return 0; } -static bool is_tpc_mask_valid(struct gk20a_platform *platform, u32 tpc_mask) +static bool is_tpc_mask_valid(struct gk20a_platform *platform, u32 tpc_pg_mask) { u32 i; bool valid = false; for (i = 0; i < MAX_TPC_PG_CONFIGS; i++) { - if (tpc_mask == platform->valid_tpc_mask[i]) + if (tpc_pg_mask == platform->valid_tpc_mask[i]) { valid = true; + break; + } } return valid; } -static void gv11b_tegra_set_tpc_pg_mask(struct device *dev, u32 tpc_mask) +static void gv11b_tegra_set_tpc_pg_mask(struct device *dev, u32 tpc_pg_mask) { struct gk20a_platform *platform = gk20a_get_platform(dev); struct gk20a *g = get_gk20a(dev); - if (is_tpc_mask_valid(platform, tpc_mask)) { - g->tpc_pg_mask = tpc_mask; + if (is_tpc_mask_valid(platform, tpc_pg_mask)) { + g->tpc_pg_mask = tpc_pg_mask; } + } struct gk20a_platform gv11b_tegra_platform = { @@ -257,9 +260,15 @@ struct gk20a_platform gv11b_tegra_platform = { .can_tpc_powergate = true, .valid_tpc_mask[0] = 0x0, .valid_tpc_mask[1] = 0x1, - .valid_tpc_mask[2] = 0x5, - - .set_tpc_pg_mask = gv11b_tegra_set_tpc_pg_mask, + .valid_tpc_mask[2] = 0x2, + .valid_tpc_mask[3] = 0x4, + .valid_tpc_mask[4] = 0x8, + .valid_tpc_mask[5] = 0x5, + .valid_tpc_mask[6] = 0x6, + .valid_tpc_mask[7] = 0x9, + .valid_tpc_mask[8] = 0xa, + + .set_tpc_pg_mask = gv11b_tegra_set_tpc_pg_mask, .can_slcg = true, .can_blcg = true, -- cgit v1.2.2